Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Marco Nelissen | 1e9ee01 | 2012-08-28 15:09:49 -0700 | [diff] [blame] | 17 | //#define LOG_NDEBUG 0 |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 18 | #define LOG_TAG "MPEG4Extractor" |
| 19 | #include <utils/Log.h> |
| 20 | |
Andreas Huber | 66326a5 | 2009-10-23 09:55:10 -0700 | [diff] [blame] | 21 | #include "include/MPEG4Extractor.h" |
Andreas Huber | 89e69da | 2009-10-13 10:22:55 -0700 | [diff] [blame] | 22 | #include "include/SampleTable.h" |
Gloria Wang | 7a1e3e8 | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 23 | #include "include/ESDS.h" |
Andreas Huber | 89e69da | 2009-10-13 10:22:55 -0700 | [diff] [blame] | 24 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 25 | #include <ctype.h> |
| 26 | #include <stdint.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | |
Dave Burke | aeb8fd4 | 2012-04-19 00:14:27 -0700 | [diff] [blame] | 30 | #include <media/stagefright/foundation/ABitReader.h> |
Jan Olof Svensson | 0fd2883 | 2012-09-26 09:08:11 +0200 | [diff] [blame] | 31 | #include <media/stagefright/foundation/ABuffer.h> |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 32 | #include <media/stagefright/foundation/ADebug.h> |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 33 | #include <media/stagefright/foundation/AMessage.h> |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 34 | #include <media/stagefright/MediaBuffer.h> |
| 35 | #include <media/stagefright/MediaBufferGroup.h> |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 36 | #include <media/stagefright/MediaDefs.h> |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 37 | #include <media/stagefright/MediaSource.h> |
| 38 | #include <media/stagefright/MetaData.h> |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 39 | #include <utils/String8.h> |
| 40 | |
| 41 | namespace android { |
| 42 | |
| 43 | class MPEG4Source : public MediaSource { |
| 44 | public: |
| 45 | // Caller retains ownership of both "dataSource" and "sampleTable". |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 46 | MPEG4Source(const sp<MetaData> &format, |
| 47 | const sp<DataSource> &dataSource, |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 48 | int32_t timeScale, |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 49 | const sp<SampleTable> &sampleTable, |
| 50 | Vector<SidxEntry> &sidx, |
| 51 | off64_t firstMoofOffset); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 52 | |
| 53 | virtual status_t start(MetaData *params = NULL); |
| 54 | virtual status_t stop(); |
| 55 | |
| 56 | virtual sp<MetaData> getFormat(); |
| 57 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 58 | virtual status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL); |
| 59 | virtual status_t fragmentedRead(MediaBuffer **buffer, const ReadOptions *options = NULL); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 60 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 61 | protected: |
| 62 | virtual ~MPEG4Source(); |
| 63 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 64 | private: |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 65 | Mutex mLock; |
| 66 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 67 | sp<MetaData> mFormat; |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 68 | sp<DataSource> mDataSource; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 69 | int32_t mTimescale; |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 70 | sp<SampleTable> mSampleTable; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 71 | uint32_t mCurrentSampleIndex; |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 72 | uint32_t mCurrentFragmentIndex; |
| 73 | Vector<SidxEntry> &mSegments; |
| 74 | off64_t mFirstMoofOffset; |
| 75 | off64_t mCurrentMoofOffset; |
| 76 | off64_t mNextMoofOffset; |
| 77 | uint32_t mCurrentTime; |
| 78 | int32_t mLastParsedTrackId; |
| 79 | int32_t mTrackId; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 80 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 81 | int32_t mCryptoMode; // passed in from extractor |
| 82 | int32_t mDefaultIVSize; // passed in from extractor |
| 83 | uint8_t mCryptoKey[16]; // passed in from extractor |
| 84 | uint32_t mCurrentAuxInfoType; |
| 85 | uint32_t mCurrentAuxInfoTypeParameter; |
| 86 | uint32_t mCurrentDefaultSampleInfoSize; |
| 87 | uint32_t mCurrentSampleInfoCount; |
| 88 | uint32_t mCurrentSampleInfoAllocSize; |
| 89 | uint8_t* mCurrentSampleInfoSizes; |
| 90 | uint32_t mCurrentSampleInfoOffsetCount; |
| 91 | uint32_t mCurrentSampleInfoOffsetsAllocSize; |
| 92 | uint64_t* mCurrentSampleInfoOffsets; |
| 93 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 94 | bool mIsAVC; |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 95 | size_t mNALLengthSize; |
| 96 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 97 | bool mStarted; |
| 98 | |
| 99 | MediaBufferGroup *mGroup; |
| 100 | |
| 101 | MediaBuffer *mBuffer; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 102 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 103 | bool mWantsNALFragments; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 104 | |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 105 | uint8_t *mSrcBuffer; |
| 106 | |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 107 | size_t parseNALSize(const uint8_t *data) const; |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 108 | status_t parseChunk(off64_t *offset); |
| 109 | status_t parseTrackFragmentHeader(off64_t offset, off64_t size); |
| 110 | status_t parseTrackFragmentRun(off64_t offset, off64_t size); |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 111 | status_t parseSampleAuxiliaryInformationSizes(off64_t offset, off64_t size); |
| 112 | status_t parseSampleAuxiliaryInformationOffsets(off64_t offset, off64_t size); |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 113 | |
| 114 | struct TrackFragmentHeaderInfo { |
| 115 | enum Flags { |
| 116 | kBaseDataOffsetPresent = 0x01, |
| 117 | kSampleDescriptionIndexPresent = 0x02, |
| 118 | kDefaultSampleDurationPresent = 0x08, |
| 119 | kDefaultSampleSizePresent = 0x10, |
| 120 | kDefaultSampleFlagsPresent = 0x20, |
| 121 | kDurationIsEmpty = 0x10000, |
| 122 | }; |
| 123 | |
| 124 | uint32_t mTrackID; |
| 125 | uint32_t mFlags; |
| 126 | uint64_t mBaseDataOffset; |
| 127 | uint32_t mSampleDescriptionIndex; |
| 128 | uint32_t mDefaultSampleDuration; |
| 129 | uint32_t mDefaultSampleSize; |
| 130 | uint32_t mDefaultSampleFlags; |
| 131 | |
| 132 | uint64_t mDataOffset; |
| 133 | }; |
| 134 | TrackFragmentHeaderInfo mTrackFragmentHeaderInfo; |
| 135 | |
| 136 | struct Sample { |
| 137 | off64_t offset; |
| 138 | size_t size; |
| 139 | uint32_t duration; |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 140 | uint8_t iv[16]; |
| 141 | Vector<size_t> clearsizes; |
| 142 | Vector<size_t> encryptedsizes; |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 143 | }; |
| 144 | Vector<Sample> mCurrentSamples; |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 145 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 146 | MPEG4Source(const MPEG4Source &); |
| 147 | MPEG4Source &operator=(const MPEG4Source &); |
| 148 | }; |
| 149 | |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 150 | // This custom data source wraps an existing one and satisfies requests |
| 151 | // falling entirely within a cached range from the cache while forwarding |
| 152 | // all remaining requests to the wrapped datasource. |
| 153 | // This is used to cache the full sampletable metadata for a single track, |
| 154 | // possibly wrapping multiple times to cover all tracks, i.e. |
| 155 | // Each MPEG4DataSource caches the sampletable metadata for a single track. |
| 156 | |
| 157 | struct MPEG4DataSource : public DataSource { |
| 158 | MPEG4DataSource(const sp<DataSource> &source); |
| 159 | |
| 160 | virtual status_t initCheck() const; |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 161 | virtual ssize_t readAt(off64_t offset, void *data, size_t size); |
| 162 | virtual status_t getSize(off64_t *size); |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 163 | virtual uint32_t flags(); |
| 164 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 165 | status_t setCachedRange(off64_t offset, size_t size); |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 166 | |
| 167 | protected: |
| 168 | virtual ~MPEG4DataSource(); |
| 169 | |
| 170 | private: |
| 171 | Mutex mLock; |
| 172 | |
| 173 | sp<DataSource> mSource; |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 174 | off64_t mCachedOffset; |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 175 | size_t mCachedSize; |
| 176 | uint8_t *mCache; |
| 177 | |
| 178 | void clearCache(); |
| 179 | |
| 180 | MPEG4DataSource(const MPEG4DataSource &); |
| 181 | MPEG4DataSource &operator=(const MPEG4DataSource &); |
| 182 | }; |
| 183 | |
| 184 | MPEG4DataSource::MPEG4DataSource(const sp<DataSource> &source) |
| 185 | : mSource(source), |
| 186 | mCachedOffset(0), |
| 187 | mCachedSize(0), |
| 188 | mCache(NULL) { |
| 189 | } |
| 190 | |
| 191 | MPEG4DataSource::~MPEG4DataSource() { |
| 192 | clearCache(); |
| 193 | } |
| 194 | |
| 195 | void MPEG4DataSource::clearCache() { |
| 196 | if (mCache) { |
| 197 | free(mCache); |
| 198 | mCache = NULL; |
| 199 | } |
| 200 | |
| 201 | mCachedOffset = 0; |
| 202 | mCachedSize = 0; |
| 203 | } |
| 204 | |
| 205 | status_t MPEG4DataSource::initCheck() const { |
| 206 | return mSource->initCheck(); |
| 207 | } |
| 208 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 209 | ssize_t MPEG4DataSource::readAt(off64_t offset, void *data, size_t size) { |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 210 | Mutex::Autolock autoLock(mLock); |
| 211 | |
| 212 | if (offset >= mCachedOffset |
| 213 | && offset + size <= mCachedOffset + mCachedSize) { |
| 214 | memcpy(data, &mCache[offset - mCachedOffset], size); |
| 215 | return size; |
| 216 | } |
| 217 | |
| 218 | return mSource->readAt(offset, data, size); |
| 219 | } |
| 220 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 221 | status_t MPEG4DataSource::getSize(off64_t *size) { |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 222 | return mSource->getSize(size); |
| 223 | } |
| 224 | |
| 225 | uint32_t MPEG4DataSource::flags() { |
| 226 | return mSource->flags(); |
| 227 | } |
| 228 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 229 | status_t MPEG4DataSource::setCachedRange(off64_t offset, size_t size) { |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 230 | Mutex::Autolock autoLock(mLock); |
| 231 | |
| 232 | clearCache(); |
| 233 | |
| 234 | mCache = (uint8_t *)malloc(size); |
| 235 | |
| 236 | if (mCache == NULL) { |
| 237 | return -ENOMEM; |
| 238 | } |
| 239 | |
| 240 | mCachedOffset = offset; |
| 241 | mCachedSize = size; |
| 242 | |
| 243 | ssize_t err = mSource->readAt(mCachedOffset, mCache, mCachedSize); |
| 244 | |
| 245 | if (err < (ssize_t)size) { |
| 246 | clearCache(); |
| 247 | |
| 248 | return ERROR_IO; |
| 249 | } |
| 250 | |
| 251 | return OK; |
| 252 | } |
| 253 | |
| 254 | //////////////////////////////////////////////////////////////////////////////// |
| 255 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 256 | static void hexdump(const void *_data, size_t size) { |
| 257 | const uint8_t *data = (const uint8_t *)_data; |
| 258 | size_t offset = 0; |
| 259 | while (offset < size) { |
| 260 | printf("0x%04x ", offset); |
| 261 | |
| 262 | size_t n = size - offset; |
| 263 | if (n > 16) { |
| 264 | n = 16; |
| 265 | } |
| 266 | |
| 267 | for (size_t i = 0; i < 16; ++i) { |
| 268 | if (i == 8) { |
| 269 | printf(" "); |
| 270 | } |
| 271 | |
| 272 | if (offset + i < size) { |
| 273 | printf("%02x ", data[offset + i]); |
| 274 | } else { |
| 275 | printf(" "); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | printf(" "); |
| 280 | |
| 281 | for (size_t i = 0; i < n; ++i) { |
| 282 | if (isprint(data[offset + i])) { |
| 283 | printf("%c", data[offset + i]); |
| 284 | } else { |
| 285 | printf("."); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | printf("\n"); |
| 290 | |
| 291 | offset += 16; |
| 292 | } |
| 293 | } |
| 294 | |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 295 | static const char *FourCC2MIME(uint32_t fourcc) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 296 | switch (fourcc) { |
| 297 | case FOURCC('m', 'p', '4', 'a'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 298 | return MEDIA_MIMETYPE_AUDIO_AAC; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 299 | |
| 300 | case FOURCC('s', 'a', 'm', 'r'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 301 | return MEDIA_MIMETYPE_AUDIO_AMR_NB; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 302 | |
Andreas Huber | 371e243 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 303 | case FOURCC('s', 'a', 'w', 'b'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 304 | return MEDIA_MIMETYPE_AUDIO_AMR_WB; |
Andreas Huber | 371e243 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 305 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 306 | case FOURCC('m', 'p', '4', 'v'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 307 | return MEDIA_MIMETYPE_VIDEO_MPEG4; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 308 | |
| 309 | case FOURCC('s', '2', '6', '3'): |
James Dong | e071b05 | 2010-12-15 15:49:46 -0800 | [diff] [blame] | 310 | case FOURCC('h', '2', '6', '3'): |
| 311 | case FOURCC('H', '2', '6', '3'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 312 | return MEDIA_MIMETYPE_VIDEO_H263; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 313 | |
| 314 | case FOURCC('a', 'v', 'c', '1'): |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 315 | return MEDIA_MIMETYPE_VIDEO_AVC; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 316 | |
| 317 | default: |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 318 | CHECK(!"should not be here."); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 319 | return NULL; |
| 320 | } |
| 321 | } |
| 322 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 323 | MPEG4Extractor::MPEG4Extractor(const sp<DataSource> &source) |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 324 | : mSidxDuration(0), |
| 325 | mMoofOffset(0), |
| 326 | mDataSource(source), |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 327 | mInitCheck(NO_INIT), |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 328 | mHasVideo(false), |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 329 | mFirstTrack(NULL), |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 330 | mLastTrack(NULL), |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 331 | mFileMetaData(new MetaData), |
| 332 | mFirstSINF(NULL), |
| 333 | mIsDrm(false) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | MPEG4Extractor::~MPEG4Extractor() { |
| 337 | Track *track = mFirstTrack; |
| 338 | while (track) { |
| 339 | Track *next = track->next; |
| 340 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 341 | delete track; |
| 342 | track = next; |
| 343 | } |
| 344 | mFirstTrack = mLastTrack = NULL; |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 345 | |
| 346 | SINF *sinf = mFirstSINF; |
| 347 | while (sinf) { |
| 348 | SINF *next = sinf->next; |
| 349 | delete sinf->IPMPData; |
| 350 | delete sinf; |
| 351 | sinf = next; |
| 352 | } |
| 353 | mFirstSINF = NULL; |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 354 | |
| 355 | for (size_t i = 0; i < mPssh.size(); i++) { |
| 356 | delete [] mPssh[i].data; |
| 357 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 358 | } |
| 359 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 360 | uint32_t MPEG4Extractor::flags() const { |
| 361 | return CAN_PAUSE | |
| 362 | ((mMoofOffset == 0 || mSidxEntries.size() != 0) ? |
| 363 | (CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK) : 0); |
| 364 | } |
| 365 | |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 366 | sp<MetaData> MPEG4Extractor::getMetaData() { |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 367 | status_t err; |
| 368 | if ((err = readMetaData()) != OK) { |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 369 | return new MetaData; |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 370 | } |
| 371 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 372 | return mFileMetaData; |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 373 | } |
| 374 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 375 | size_t MPEG4Extractor::countTracks() { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 376 | status_t err; |
| 377 | if ((err = readMetaData()) != OK) { |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 378 | ALOGV("MPEG4Extractor::countTracks: no tracks"); |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 379 | return 0; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 380 | } |
| 381 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 382 | size_t n = 0; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 383 | Track *track = mFirstTrack; |
| 384 | while (track) { |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 385 | ++n; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 386 | track = track->next; |
| 387 | } |
| 388 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 389 | ALOGV("MPEG4Extractor::countTracks: %d tracks", n); |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 390 | return n; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 391 | } |
| 392 | |
Andreas Huber | 7e04dcf | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 393 | sp<MetaData> MPEG4Extractor::getTrackMetaData( |
| 394 | size_t index, uint32_t flags) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 395 | status_t err; |
| 396 | if ((err = readMetaData()) != OK) { |
| 397 | return NULL; |
| 398 | } |
| 399 | |
| 400 | Track *track = mFirstTrack; |
| 401 | while (index > 0) { |
| 402 | if (track == NULL) { |
| 403 | return NULL; |
| 404 | } |
| 405 | |
| 406 | track = track->next; |
| 407 | --index; |
| 408 | } |
| 409 | |
Andreas Huber | 371e243 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 410 | if (track == NULL) { |
| 411 | return NULL; |
| 412 | } |
| 413 | |
Andreas Huber | 7e04dcf | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 414 | if ((flags & kIncludeExtensiveMetaData) |
| 415 | && !track->includes_expensive_metadata) { |
| 416 | track->includes_expensive_metadata = true; |
| 417 | |
| 418 | const char *mime; |
| 419 | CHECK(track->meta->findCString(kKeyMIMEType, &mime)); |
| 420 | if (!strncasecmp("video/", mime, 6)) { |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 421 | if (mMoofOffset > 0) { |
| 422 | int64_t duration; |
| 423 | if (track->meta->findInt64(kKeyDuration, &duration)) { |
| 424 | // nothing fancy, just pick a frame near 1/4th of the duration |
| 425 | track->meta->setInt64( |
| 426 | kKeyThumbnailTime, duration / 4); |
| 427 | } |
| 428 | } else { |
| 429 | uint32_t sampleIndex; |
| 430 | uint32_t sampleTime; |
| 431 | if (track->sampleTable->findThumbnailSample(&sampleIndex) == OK |
| 432 | && track->sampleTable->getMetaDataForSample( |
| 433 | sampleIndex, NULL /* offset */, NULL /* size */, |
| 434 | &sampleTime) == OK) { |
| 435 | track->meta->setInt64( |
| 436 | kKeyThumbnailTime, |
| 437 | ((int64_t)sampleTime * 1000000) / track->timescale); |
| 438 | } |
Andreas Huber | 7e04dcf | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 439 | } |
| 440 | } |
| 441 | } |
| 442 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 443 | return track->meta; |
| 444 | } |
| 445 | |
| 446 | status_t MPEG4Extractor::readMetaData() { |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 447 | if (mInitCheck != NO_INIT) { |
| 448 | return mInitCheck; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 449 | } |
| 450 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 451 | off64_t offset = 0; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 452 | status_t err; |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 453 | while (true) { |
| 454 | err = parseChunk(&offset, 0); |
| 455 | if (err == OK) { |
| 456 | continue; |
| 457 | } |
| 458 | |
| 459 | uint32_t hdr[2]; |
| 460 | if (mDataSource->readAt(offset, hdr, 8) < 8) { |
| 461 | break; |
| 462 | } |
| 463 | uint32_t chunk_type = ntohl(hdr[1]); |
| 464 | if (chunk_type == FOURCC('s', 'i', 'd', 'x')) { |
| 465 | // parse the sidx box too |
| 466 | continue; |
| 467 | } else if (chunk_type == FOURCC('m', 'o', 'o', 'f')) { |
| 468 | // store the offset of the first segment |
| 469 | mMoofOffset = offset; |
| 470 | } |
| 471 | break; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 472 | } |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 473 | |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 474 | if (mInitCheck == OK) { |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 475 | if (mHasVideo) { |
Andreas Huber | bc8b5fa | 2012-03-23 08:39:04 -0700 | [diff] [blame] | 476 | mFileMetaData->setCString( |
| 477 | kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG4); |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 478 | } else { |
| 479 | mFileMetaData->setCString(kKeyMIMEType, "audio/mp4"); |
| 480 | } |
| 481 | |
Andreas Huber | 4678a6d | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 482 | mInitCheck = OK; |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 483 | } else { |
| 484 | mInitCheck = err; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 485 | } |
| 486 | |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 487 | CHECK_NE(err, (status_t)NO_INIT); |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 488 | |
| 489 | // copy pssh data into file metadata |
| 490 | int psshsize = 0; |
| 491 | for (size_t i = 0; i < mPssh.size(); i++) { |
| 492 | psshsize += 20 + mPssh[i].datalen; |
| 493 | } |
| 494 | if (psshsize) { |
| 495 | char *buf = (char*)malloc(psshsize); |
| 496 | char *ptr = buf; |
| 497 | for (size_t i = 0; i < mPssh.size(); i++) { |
| 498 | memcpy(ptr, mPssh[i].uuid, 20); // uuid + length |
| 499 | memcpy(ptr + 20, mPssh[i].data, mPssh[i].datalen); |
| 500 | ptr += (20 + mPssh[i].datalen); |
| 501 | } |
| 502 | mFileMetaData->setData(kKeyPssh, 'pssh', buf, psshsize); |
| 503 | free(buf); |
| 504 | } |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 505 | return mInitCheck; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 506 | } |
| 507 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 508 | char* MPEG4Extractor::getDrmTrackInfo(size_t trackID, int *len) { |
| 509 | if (mFirstSINF == NULL) { |
| 510 | return NULL; |
| 511 | } |
| 512 | |
| 513 | SINF *sinf = mFirstSINF; |
| 514 | while (sinf && (trackID != sinf->trackID)) { |
| 515 | sinf = sinf->next; |
| 516 | } |
| 517 | |
| 518 | if (sinf == NULL) { |
| 519 | return NULL; |
| 520 | } |
| 521 | |
| 522 | *len = sinf->len; |
| 523 | return sinf->IPMPData; |
| 524 | } |
| 525 | |
| 526 | // Reads an encoded integer 7 bits at a time until it encounters the high bit clear. |
Marco Nelissen | 1e9ee01 | 2012-08-28 15:09:49 -0700 | [diff] [blame] | 527 | static int32_t readSize(off64_t offset, |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 528 | const sp<DataSource> DataSource, uint8_t *numOfBytes) { |
| 529 | uint32_t size = 0; |
| 530 | uint8_t data; |
| 531 | bool moreData = true; |
| 532 | *numOfBytes = 0; |
| 533 | |
| 534 | while (moreData) { |
| 535 | if (DataSource->readAt(offset, &data, 1) < 1) { |
| 536 | return -1; |
| 537 | } |
| 538 | offset ++; |
| 539 | moreData = (data >= 128) ? true : false; |
| 540 | size = (size << 7) | (data & 0x7f); // Take last 7 bits |
| 541 | (*numOfBytes) ++; |
| 542 | } |
| 543 | |
| 544 | return size; |
| 545 | } |
| 546 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 547 | status_t MPEG4Extractor::parseDrmSINF(off64_t *offset, off64_t data_offset) { |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 548 | uint8_t updateIdTag; |
| 549 | if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { |
| 550 | return ERROR_IO; |
| 551 | } |
| 552 | data_offset ++; |
| 553 | |
| 554 | if (0x01/*OBJECT_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { |
| 555 | return ERROR_MALFORMED; |
| 556 | } |
| 557 | |
| 558 | uint8_t numOfBytes; |
| 559 | int32_t size = readSize(data_offset, mDataSource, &numOfBytes); |
| 560 | if (size < 0) { |
| 561 | return ERROR_IO; |
| 562 | } |
| 563 | int32_t classSize = size; |
| 564 | data_offset += numOfBytes; |
| 565 | |
| 566 | while(size >= 11 ) { |
| 567 | uint8_t descriptorTag; |
| 568 | if (mDataSource->readAt(data_offset, &descriptorTag, 1) < 1) { |
| 569 | return ERROR_IO; |
| 570 | } |
| 571 | data_offset ++; |
| 572 | |
| 573 | if (0x11/*OBJECT_DESCRIPTOR_ID_TAG*/ != descriptorTag) { |
| 574 | return ERROR_MALFORMED; |
| 575 | } |
| 576 | |
| 577 | uint8_t buffer[8]; |
| 578 | //ObjectDescriptorID and ObjectDescriptor url flag |
| 579 | if (mDataSource->readAt(data_offset, buffer, 2) < 2) { |
| 580 | return ERROR_IO; |
| 581 | } |
| 582 | data_offset += 2; |
| 583 | |
| 584 | if ((buffer[1] >> 5) & 0x0001) { //url flag is set |
| 585 | return ERROR_MALFORMED; |
| 586 | } |
| 587 | |
| 588 | if (mDataSource->readAt(data_offset, buffer, 8) < 8) { |
| 589 | return ERROR_IO; |
| 590 | } |
| 591 | data_offset += 8; |
| 592 | |
| 593 | if ((0x0F/*ES_ID_REF_TAG*/ != buffer[1]) |
| 594 | || ( 0x0A/*IPMP_DESCRIPTOR_POINTER_ID_TAG*/ != buffer[5])) { |
| 595 | return ERROR_MALFORMED; |
| 596 | } |
| 597 | |
| 598 | SINF *sinf = new SINF; |
| 599 | sinf->trackID = U16_AT(&buffer[3]); |
| 600 | sinf->IPMPDescriptorID = buffer[7]; |
| 601 | sinf->next = mFirstSINF; |
| 602 | mFirstSINF = sinf; |
| 603 | |
| 604 | size -= (8 + 2 + 1); |
| 605 | } |
| 606 | |
| 607 | if (size != 0) { |
| 608 | return ERROR_MALFORMED; |
| 609 | } |
| 610 | |
| 611 | if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { |
| 612 | return ERROR_IO; |
| 613 | } |
| 614 | data_offset ++; |
| 615 | |
| 616 | if(0x05/*IPMP_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { |
| 617 | return ERROR_MALFORMED; |
| 618 | } |
| 619 | |
| 620 | size = readSize(data_offset, mDataSource, &numOfBytes); |
| 621 | if (size < 0) { |
| 622 | return ERROR_IO; |
| 623 | } |
| 624 | classSize = size; |
| 625 | data_offset += numOfBytes; |
| 626 | |
| 627 | while (size > 0) { |
| 628 | uint8_t tag; |
| 629 | int32_t dataLen; |
| 630 | if (mDataSource->readAt(data_offset, &tag, 1) < 1) { |
| 631 | return ERROR_IO; |
| 632 | } |
| 633 | data_offset ++; |
| 634 | |
| 635 | if (0x0B/*IPMP_DESCRIPTOR_ID_TAG*/ == tag) { |
| 636 | uint8_t id; |
| 637 | dataLen = readSize(data_offset, mDataSource, &numOfBytes); |
| 638 | if (dataLen < 0) { |
| 639 | return ERROR_IO; |
| 640 | } else if (dataLen < 4) { |
| 641 | return ERROR_MALFORMED; |
| 642 | } |
| 643 | data_offset += numOfBytes; |
| 644 | |
| 645 | if (mDataSource->readAt(data_offset, &id, 1) < 1) { |
| 646 | return ERROR_IO; |
| 647 | } |
| 648 | data_offset ++; |
| 649 | |
| 650 | SINF *sinf = mFirstSINF; |
| 651 | while (sinf && (sinf->IPMPDescriptorID != id)) { |
| 652 | sinf = sinf->next; |
| 653 | } |
| 654 | if (sinf == NULL) { |
| 655 | return ERROR_MALFORMED; |
| 656 | } |
| 657 | sinf->len = dataLen - 3; |
| 658 | sinf->IPMPData = new char[sinf->len]; |
| 659 | |
| 660 | if (mDataSource->readAt(data_offset + 2, sinf->IPMPData, sinf->len) < sinf->len) { |
| 661 | return ERROR_IO; |
| 662 | } |
| 663 | data_offset += sinf->len; |
| 664 | |
| 665 | size -= (dataLen + numOfBytes + 1); |
| 666 | } |
| 667 | } |
| 668 | |
| 669 | if (size != 0) { |
| 670 | return ERROR_MALFORMED; |
| 671 | } |
| 672 | |
| 673 | return UNKNOWN_ERROR; // Return a dummy error. |
| 674 | } |
| 675 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 676 | static void MakeFourCCString(uint32_t x, char *s) { |
| 677 | s[0] = x >> 24; |
| 678 | s[1] = (x >> 16) & 0xff; |
| 679 | s[2] = (x >> 8) & 0xff; |
| 680 | s[3] = x & 0xff; |
| 681 | s[4] = '\0'; |
| 682 | } |
| 683 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 684 | struct PathAdder { |
| 685 | PathAdder(Vector<uint32_t> *path, uint32_t chunkType) |
| 686 | : mPath(path) { |
| 687 | mPath->push(chunkType); |
| 688 | } |
| 689 | |
| 690 | ~PathAdder() { |
| 691 | mPath->pop(); |
| 692 | } |
| 693 | |
| 694 | private: |
| 695 | Vector<uint32_t> *mPath; |
| 696 | |
| 697 | PathAdder(const PathAdder &); |
| 698 | PathAdder &operator=(const PathAdder &); |
| 699 | }; |
| 700 | |
| 701 | static bool underMetaDataPath(const Vector<uint32_t> &path) { |
| 702 | return path.size() >= 5 |
| 703 | && path[0] == FOURCC('m', 'o', 'o', 'v') |
| 704 | && path[1] == FOURCC('u', 'd', 't', 'a') |
| 705 | && path[2] == FOURCC('m', 'e', 't', 'a') |
| 706 | && path[3] == FOURCC('i', 'l', 's', 't'); |
| 707 | } |
| 708 | |
| 709 | // Given a time in seconds since Jan 1 1904, produce a human-readable string. |
| 710 | static void convertTimeToDate(int64_t time_1904, String8 *s) { |
| 711 | time_t time_1970 = time_1904 - (((66 * 365 + 17) * 24) * 3600); |
| 712 | |
| 713 | char tmp[32]; |
| 714 | strftime(tmp, sizeof(tmp), "%Y%m%dT%H%M%S.000Z", gmtime(&time_1970)); |
| 715 | |
| 716 | s->setTo(tmp); |
| 717 | } |
| 718 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 719 | status_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) { |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 720 | ALOGV("entering parseChunk %lld/%d", *offset, depth); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 721 | uint32_t hdr[2]; |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 722 | if (mDataSource->readAt(*offset, hdr, 8) < 8) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 723 | return ERROR_IO; |
| 724 | } |
| 725 | uint64_t chunk_size = ntohl(hdr[0]); |
| 726 | uint32_t chunk_type = ntohl(hdr[1]); |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 727 | off64_t data_offset = *offset + 8; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 728 | |
| 729 | if (chunk_size == 1) { |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 730 | if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 731 | return ERROR_IO; |
| 732 | } |
| 733 | chunk_size = ntoh64(chunk_size); |
| 734 | data_offset += 8; |
Andreas Huber | 71b1a4e | 2010-06-24 12:16:25 -0700 | [diff] [blame] | 735 | |
| 736 | if (chunk_size < 16) { |
| 737 | // The smallest valid chunk is 16 bytes long in this case. |
| 738 | return ERROR_MALFORMED; |
| 739 | } |
| 740 | } else if (chunk_size < 8) { |
| 741 | // The smallest valid chunk is 8 bytes long. |
| 742 | return ERROR_MALFORMED; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 743 | } |
| 744 | |
| 745 | char chunk[5]; |
| 746 | MakeFourCCString(chunk_type, chunk); |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 747 | ALOGV("chunk: %s @ %lld, %d", chunk, *offset, depth); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 748 | |
| 749 | #if 0 |
| 750 | static const char kWhitespace[] = " "; |
| 751 | const char *indent = &kWhitespace[sizeof(kWhitespace) - 1 - 2 * depth]; |
| 752 | printf("%sfound chunk '%s' of size %lld\n", indent, chunk, chunk_size); |
| 753 | |
| 754 | char buffer[256]; |
Andreas Huber | ea5ea10 | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 755 | size_t n = chunk_size; |
| 756 | if (n > sizeof(buffer)) { |
| 757 | n = sizeof(buffer); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 758 | } |
Andreas Huber | ea5ea10 | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 759 | if (mDataSource->readAt(*offset, buffer, n) |
| 760 | < (ssize_t)n) { |
| 761 | return ERROR_IO; |
| 762 | } |
| 763 | |
| 764 | hexdump(buffer, n); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 765 | #endif |
| 766 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 767 | PathAdder autoAdder(&mPath, chunk_type); |
| 768 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 769 | off64_t chunk_data_size = *offset + chunk_size - data_offset; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 770 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 771 | if (chunk_type != FOURCC('c', 'p', 'r', 't') |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 772 | && chunk_type != FOURCC('c', 'o', 'v', 'r') |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 773 | && mPath.size() == 5 && underMetaDataPath(mPath)) { |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 774 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 775 | *offset = data_offset; |
| 776 | while (*offset < stop_offset) { |
| 777 | status_t err = parseChunk(offset, depth + 1); |
| 778 | if (err != OK) { |
| 779 | return err; |
| 780 | } |
| 781 | } |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 782 | |
| 783 | if (*offset != stop_offset) { |
| 784 | return ERROR_MALFORMED; |
| 785 | } |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 786 | |
| 787 | return OK; |
| 788 | } |
| 789 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 790 | switch(chunk_type) { |
| 791 | case FOURCC('m', 'o', 'o', 'v'): |
| 792 | case FOURCC('t', 'r', 'a', 'k'): |
| 793 | case FOURCC('m', 'd', 'i', 'a'): |
| 794 | case FOURCC('m', 'i', 'n', 'f'): |
| 795 | case FOURCC('d', 'i', 'n', 'f'): |
| 796 | case FOURCC('s', 't', 'b', 'l'): |
| 797 | case FOURCC('m', 'v', 'e', 'x'): |
| 798 | case FOURCC('m', 'o', 'o', 'f'): |
| 799 | case FOURCC('t', 'r', 'a', 'f'): |
| 800 | case FOURCC('m', 'f', 'r', 'a'): |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 801 | case FOURCC('u', 'd', 't', 'a'): |
| 802 | case FOURCC('i', 'l', 's', 't'): |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 803 | case FOURCC('s', 'i', 'n', 'f'): |
| 804 | case FOURCC('s', 'c', 'h', 'i'): |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 805 | { |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 806 | if (chunk_type == FOURCC('s', 't', 'b', 'l')) { |
Steve Block | 3856b09 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 807 | ALOGV("sampleTable chunk is %d bytes long.", (size_t)chunk_size); |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 808 | |
Andreas Huber | b9d3038 | 2010-10-15 08:38:49 -0700 | [diff] [blame] | 809 | if (mDataSource->flags() |
| 810 | & (DataSource::kWantsPrefetching |
| 811 | | DataSource::kIsCachingDataSource)) { |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 812 | sp<MPEG4DataSource> cachedSource = |
| 813 | new MPEG4DataSource(mDataSource); |
| 814 | |
| 815 | if (cachedSource->setCachedRange(*offset, chunk_size) == OK) { |
| 816 | mDataSource = cachedSource; |
| 817 | } |
| 818 | } |
Andreas Huber | 1edbcb2 | 2010-05-14 15:28:51 -0700 | [diff] [blame] | 819 | |
| 820 | mLastTrack->sampleTable = new SampleTable(mDataSource); |
Andreas Huber | 50a9976 | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 821 | } |
| 822 | |
Andreas Huber | 6f3a0c2 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 823 | bool isTrack = false; |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 824 | if (chunk_type == FOURCC('t', 'r', 'a', 'k')) { |
Andreas Huber | 6f3a0c2 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 825 | isTrack = true; |
| 826 | |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 827 | Track *track = new Track; |
| 828 | track->next = NULL; |
| 829 | if (mLastTrack) { |
| 830 | mLastTrack->next = track; |
| 831 | } else { |
| 832 | mFirstTrack = track; |
| 833 | } |
| 834 | mLastTrack = track; |
| 835 | |
| 836 | track->meta = new MetaData; |
| 837 | track->includes_expensive_metadata = false; |
Andreas Huber | 6f3a0c2 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 838 | track->skipTrack = false; |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 839 | track->timescale = 0; |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 840 | track->meta->setCString(kKeyMIMEType, "application/octet-stream"); |
| 841 | } |
| 842 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 843 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 844 | *offset = data_offset; |
| 845 | while (*offset < stop_offset) { |
| 846 | status_t err = parseChunk(offset, depth + 1); |
| 847 | if (err != OK) { |
| 848 | return err; |
| 849 | } |
| 850 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 851 | |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 852 | if (*offset != stop_offset) { |
| 853 | return ERROR_MALFORMED; |
| 854 | } |
| 855 | |
Andreas Huber | 6f3a0c2 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 856 | if (isTrack) { |
| 857 | if (mLastTrack->skipTrack) { |
| 858 | Track *cur = mFirstTrack; |
| 859 | |
| 860 | if (cur == mLastTrack) { |
| 861 | delete cur; |
| 862 | mFirstTrack = mLastTrack = NULL; |
| 863 | } else { |
| 864 | while (cur && cur->next != mLastTrack) { |
| 865 | cur = cur->next; |
| 866 | } |
| 867 | cur->next = NULL; |
| 868 | delete mLastTrack; |
| 869 | mLastTrack = cur; |
| 870 | } |
| 871 | |
| 872 | return OK; |
| 873 | } |
| 874 | |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 875 | status_t err = verifyTrack(mLastTrack); |
| 876 | |
| 877 | if (err != OK) { |
| 878 | return err; |
| 879 | } |
| 880 | } else if (chunk_type == FOURCC('m', 'o', 'o', 'v')) { |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 881 | mInitCheck = OK; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 882 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 883 | if (!mIsDrm) { |
| 884 | return UNKNOWN_ERROR; // Return a dummy error. |
| 885 | } else { |
| 886 | return OK; |
| 887 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 888 | } |
| 889 | break; |
| 890 | } |
| 891 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 892 | case FOURCC('f', 'r', 'm', 'a'): |
| 893 | { |
| 894 | int32_t original_fourcc; |
| 895 | if (mDataSource->readAt(data_offset, &original_fourcc, 4) < 4) { |
| 896 | return ERROR_IO; |
| 897 | } |
| 898 | original_fourcc = ntohl(original_fourcc); |
| 899 | ALOGV("read original format: %d", original_fourcc); |
| 900 | mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(original_fourcc)); |
| 901 | *offset += chunk_size; |
| 902 | break; |
| 903 | } |
| 904 | |
| 905 | case FOURCC('t', 'e', 'n', 'c'): |
| 906 | { |
| 907 | if (chunk_size < 32) { |
| 908 | return ERROR_MALFORMED; |
| 909 | } |
| 910 | |
| 911 | // tenc box contains 1 byte version, 3 byte flags, 3 byte default algorithm id, one byte |
| 912 | // default IV size, 16 bytes default KeyID |
| 913 | // (ISO 23001-7) |
| 914 | char buf[4]; |
| 915 | memset(buf, 0, 4); |
| 916 | if (mDataSource->readAt(data_offset + 4, buf + 1, 3) < 3) { |
| 917 | return ERROR_IO; |
| 918 | } |
| 919 | uint32_t defaultAlgorithmId = ntohl(*((int32_t*)buf)); |
| 920 | if (defaultAlgorithmId > 1) { |
| 921 | // only 0 (clear) and 1 (AES-128) are valid |
| 922 | return ERROR_MALFORMED; |
| 923 | } |
| 924 | |
| 925 | memset(buf, 0, 4); |
| 926 | if (mDataSource->readAt(data_offset + 7, buf + 3, 1) < 1) { |
| 927 | return ERROR_IO; |
| 928 | } |
| 929 | uint32_t defaultIVSize = ntohl(*((int32_t*)buf)); |
| 930 | |
| 931 | if ((defaultAlgorithmId == 0 && defaultIVSize != 0) || |
| 932 | (defaultAlgorithmId != 0 && defaultIVSize == 0)) { |
| 933 | // only unencrypted data must have 0 IV size |
| 934 | return ERROR_MALFORMED; |
| 935 | } else if (defaultIVSize != 0 && |
| 936 | defaultIVSize != 8 && |
| 937 | defaultIVSize != 16) { |
| 938 | // only supported sizes are 0, 8 and 16 |
| 939 | return ERROR_MALFORMED; |
| 940 | } |
| 941 | |
| 942 | uint8_t defaultKeyId[16]; |
| 943 | |
| 944 | if (mDataSource->readAt(data_offset + 8, &defaultKeyId, 16) < 16) { |
| 945 | return ERROR_IO; |
| 946 | } |
| 947 | |
| 948 | mLastTrack->meta->setInt32(kKeyCryptoMode, defaultAlgorithmId); |
| 949 | mLastTrack->meta->setInt32(kKeyCryptoDefaultIVSize, defaultIVSize); |
| 950 | mLastTrack->meta->setData(kKeyCryptoKey, 'tenc', defaultKeyId, 16); |
| 951 | *offset += chunk_size; |
| 952 | break; |
| 953 | } |
| 954 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 955 | case FOURCC('t', 'k', 'h', 'd'): |
| 956 | { |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 957 | status_t err; |
| 958 | if ((err = parseTrackHeader(data_offset, chunk_data_size)) != OK) { |
| 959 | return err; |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 960 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 961 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 962 | *offset += chunk_size; |
| 963 | break; |
| 964 | } |
| 965 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 966 | case FOURCC('p', 's', 's', 'h'): |
| 967 | { |
| 968 | PsshInfo pssh; |
| 969 | |
| 970 | if (mDataSource->readAt(data_offset + 4, &pssh.uuid, 16) < 16) { |
| 971 | return ERROR_IO; |
| 972 | } |
| 973 | |
| 974 | uint32_t psshdatalen = 0; |
| 975 | if (mDataSource->readAt(data_offset + 20, &psshdatalen, 4) < 4) { |
| 976 | return ERROR_IO; |
| 977 | } |
| 978 | pssh.datalen = ntohl(psshdatalen); |
| 979 | ALOGV("pssh data size: %d", pssh.datalen); |
| 980 | if (pssh.datalen + 20 > chunk_size) { |
| 981 | // pssh data length exceeds size of containing box |
| 982 | return ERROR_MALFORMED; |
| 983 | } |
| 984 | |
| 985 | pssh.data = new uint8_t[pssh.datalen]; |
| 986 | ALOGV("allocated pssh @ %p", pssh.data); |
| 987 | ssize_t requested = (ssize_t) pssh.datalen; |
| 988 | if (mDataSource->readAt(data_offset + 24, pssh.data, requested) < requested) { |
| 989 | return ERROR_IO; |
| 990 | } |
| 991 | mPssh.push_back(pssh); |
| 992 | |
| 993 | *offset += chunk_size; |
| 994 | break; |
| 995 | } |
| 996 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 997 | case FOURCC('m', 'd', 'h', 'd'): |
| 998 | { |
| 999 | if (chunk_data_size < 4) { |
| 1000 | return ERROR_MALFORMED; |
| 1001 | } |
| 1002 | |
| 1003 | uint8_t version; |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1004 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1005 | data_offset, &version, sizeof(version)) |
| 1006 | < (ssize_t)sizeof(version)) { |
| 1007 | return ERROR_IO; |
| 1008 | } |
| 1009 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1010 | off64_t timescale_offset; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1011 | |
| 1012 | if (version == 1) { |
| 1013 | timescale_offset = data_offset + 4 + 16; |
| 1014 | } else if (version == 0) { |
| 1015 | timescale_offset = data_offset + 4 + 8; |
| 1016 | } else { |
| 1017 | return ERROR_IO; |
| 1018 | } |
| 1019 | |
| 1020 | uint32_t timescale; |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1021 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1022 | timescale_offset, ×cale, sizeof(timescale)) |
| 1023 | < (ssize_t)sizeof(timescale)) { |
| 1024 | return ERROR_IO; |
| 1025 | } |
| 1026 | |
| 1027 | mLastTrack->timescale = ntohl(timescale); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1028 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1029 | int64_t duration = 0; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1030 | if (version == 1) { |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1031 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1032 | timescale_offset + 4, &duration, sizeof(duration)) |
| 1033 | < (ssize_t)sizeof(duration)) { |
| 1034 | return ERROR_IO; |
| 1035 | } |
| 1036 | duration = ntoh64(duration); |
| 1037 | } else { |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1038 | uint32_t duration32; |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1039 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1040 | timescale_offset + 4, &duration32, sizeof(duration32)) |
| 1041 | < (ssize_t)sizeof(duration32)) { |
| 1042 | return ERROR_IO; |
| 1043 | } |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1044 | // ffmpeg sets duration to -1, which is incorrect. |
| 1045 | if (duration32 != 0xffffffff) { |
| 1046 | duration = ntohl(duration32); |
| 1047 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1048 | } |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 1049 | mLastTrack->meta->setInt64( |
| 1050 | kKeyDuration, (duration * 1000000) / mLastTrack->timescale); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1051 | |
Gloria Wang | 7a1e3e8 | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 1052 | uint8_t lang[2]; |
| 1053 | off64_t lang_offset; |
| 1054 | if (version == 1) { |
| 1055 | lang_offset = timescale_offset + 4 + 8; |
| 1056 | } else if (version == 0) { |
| 1057 | lang_offset = timescale_offset + 4 + 4; |
| 1058 | } else { |
| 1059 | return ERROR_IO; |
| 1060 | } |
| 1061 | |
| 1062 | if (mDataSource->readAt(lang_offset, &lang, sizeof(lang)) |
| 1063 | < (ssize_t)sizeof(lang)) { |
| 1064 | return ERROR_IO; |
| 1065 | } |
| 1066 | |
| 1067 | // To get the ISO-639-2/T three character language code |
| 1068 | // 1 bit pad followed by 3 5-bits characters. Each character |
| 1069 | // is packed as the difference between its ASCII value and 0x60. |
| 1070 | char lang_code[4]; |
| 1071 | lang_code[0] = ((lang[0] >> 2) & 0x1f) + 0x60; |
| 1072 | lang_code[1] = ((lang[0] & 0x3) << 3 | (lang[1] >> 5)) + 0x60; |
| 1073 | lang_code[2] = (lang[1] & 0x1f) + 0x60; |
| 1074 | lang_code[3] = '\0'; |
| 1075 | |
| 1076 | mLastTrack->meta->setCString( |
| 1077 | kKeyMediaLanguage, lang_code); |
| 1078 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1079 | *offset += chunk_size; |
| 1080 | break; |
| 1081 | } |
| 1082 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1083 | case FOURCC('s', 't', 's', 'd'): |
| 1084 | { |
| 1085 | if (chunk_data_size < 8) { |
| 1086 | return ERROR_MALFORMED; |
| 1087 | } |
| 1088 | |
| 1089 | uint8_t buffer[8]; |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1090 | if (chunk_data_size < (off64_t)sizeof(buffer)) { |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1091 | return ERROR_MALFORMED; |
| 1092 | } |
| 1093 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1094 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1095 | data_offset, buffer, 8) < 8) { |
| 1096 | return ERROR_IO; |
| 1097 | } |
| 1098 | |
| 1099 | if (U32_AT(buffer) != 0) { |
| 1100 | // Should be version 0, flags 0. |
| 1101 | return ERROR_MALFORMED; |
| 1102 | } |
| 1103 | |
| 1104 | uint32_t entry_count = U32_AT(&buffer[4]); |
| 1105 | |
| 1106 | if (entry_count > 1) { |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1107 | // For 3GPP timed text, there could be multiple tx3g boxes contain |
| 1108 | // multiple text display formats. These formats will be used to |
| 1109 | // display the timed text. |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1110 | // For encrypted files, there may also be more than one entry. |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1111 | const char *mime; |
| 1112 | CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime)); |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1113 | if (strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP) && |
| 1114 | strcasecmp(mime, "application/octet-stream")) { |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1115 | // For now we only support a single type of media per track. |
| 1116 | mLastTrack->skipTrack = true; |
| 1117 | *offset += chunk_size; |
| 1118 | break; |
| 1119 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1120 | } |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1121 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1122 | *offset = data_offset + 8; |
| 1123 | for (uint32_t i = 0; i < entry_count; ++i) { |
| 1124 | status_t err = parseChunk(offset, depth + 1); |
| 1125 | if (err != OK) { |
| 1126 | return err; |
| 1127 | } |
| 1128 | } |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1129 | |
| 1130 | if (*offset != stop_offset) { |
| 1131 | return ERROR_MALFORMED; |
| 1132 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1133 | break; |
| 1134 | } |
| 1135 | |
| 1136 | case FOURCC('m', 'p', '4', 'a'): |
| 1137 | case FOURCC('s', 'a', 'm', 'r'): |
Andreas Huber | 371e243 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 1138 | case FOURCC('s', 'a', 'w', 'b'): |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1139 | { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1140 | uint8_t buffer[8 + 20]; |
| 1141 | if (chunk_data_size < (ssize_t)sizeof(buffer)) { |
| 1142 | // Basic AudioSampleEntry size. |
| 1143 | return ERROR_MALFORMED; |
| 1144 | } |
| 1145 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1146 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1147 | data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { |
| 1148 | return ERROR_IO; |
| 1149 | } |
| 1150 | |
| 1151 | uint16_t data_ref_index = U16_AT(&buffer[6]); |
| 1152 | uint16_t num_channels = U16_AT(&buffer[16]); |
| 1153 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1154 | uint16_t sample_size = U16_AT(&buffer[18]); |
| 1155 | uint32_t sample_rate = U32_AT(&buffer[24]) >> 16; |
| 1156 | |
Andreas Huber | 81f82c3 | 2010-04-12 16:05:57 -0700 | [diff] [blame] | 1157 | if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, |
| 1158 | FourCC2MIME(chunk_type))) { |
| 1159 | // AMR NB audio is always mono, 8kHz |
| 1160 | num_channels = 1; |
| 1161 | sample_rate = 8000; |
| 1162 | } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, |
| 1163 | FourCC2MIME(chunk_type))) { |
| 1164 | // AMR WB audio is always mono, 16kHz |
| 1165 | num_channels = 1; |
| 1166 | sample_rate = 16000; |
| 1167 | } |
| 1168 | |
| 1169 | #if 0 |
| 1170 | printf("*** coding='%s' %d channels, size %d, rate %d\n", |
| 1171 | chunk, num_channels, sample_size, sample_rate); |
| 1172 | #endif |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1173 | |
| 1174 | mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); |
| 1175 | mLastTrack->meta->setInt32(kKeyChannelCount, num_channels); |
| 1176 | mLastTrack->meta->setInt32(kKeySampleRate, sample_rate); |
| 1177 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1178 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1179 | *offset = data_offset + sizeof(buffer); |
| 1180 | while (*offset < stop_offset) { |
| 1181 | status_t err = parseChunk(offset, depth + 1); |
| 1182 | if (err != OK) { |
| 1183 | return err; |
| 1184 | } |
| 1185 | } |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1186 | |
| 1187 | if (*offset != stop_offset) { |
| 1188 | return ERROR_MALFORMED; |
| 1189 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1190 | break; |
| 1191 | } |
| 1192 | |
| 1193 | case FOURCC('m', 'p', '4', 'v'): |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1194 | case FOURCC('e', 'n', 'c', 'v'): |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1195 | case FOURCC('s', '2', '6', '3'): |
James Dong | e071b05 | 2010-12-15 15:49:46 -0800 | [diff] [blame] | 1196 | case FOURCC('H', '2', '6', '3'): |
| 1197 | case FOURCC('h', '2', '6', '3'): |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1198 | case FOURCC('a', 'v', 'c', '1'): |
| 1199 | { |
Andreas Huber | 7be6407 | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 1200 | mHasVideo = true; |
| 1201 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1202 | uint8_t buffer[78]; |
| 1203 | if (chunk_data_size < (ssize_t)sizeof(buffer)) { |
| 1204 | // Basic VideoSampleEntry size. |
| 1205 | return ERROR_MALFORMED; |
| 1206 | } |
| 1207 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1208 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1209 | data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { |
| 1210 | return ERROR_IO; |
| 1211 | } |
| 1212 | |
| 1213 | uint16_t data_ref_index = U16_AT(&buffer[6]); |
| 1214 | uint16_t width = U16_AT(&buffer[6 + 18]); |
| 1215 | uint16_t height = U16_AT(&buffer[6 + 20]); |
| 1216 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1217 | // The video sample is not standard-compliant if it has invalid dimension. |
James Dong | a625623 | 2010-12-15 17:32:45 -0800 | [diff] [blame] | 1218 | // Use some default width and height value, and |
| 1219 | // let the decoder figure out the actual width and height (and thus |
| 1220 | // be prepared for INFO_FOMRAT_CHANGED event). |
| 1221 | if (width == 0) width = 352; |
| 1222 | if (height == 0) height = 288; |
| 1223 | |
Andreas Huber | 134ee6a | 2009-12-16 09:30:55 -0800 | [diff] [blame] | 1224 | // printf("*** coding='%s' width=%d height=%d\n", |
| 1225 | // chunk, width, height); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1226 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1227 | if (chunk_type != FOURCC('e', 'n', 'c', 'v')) { |
| 1228 | // if the chunk type is encv, we'll get the type from the sinf/frma box later |
| 1229 | mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); |
| 1230 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1231 | mLastTrack->meta->setInt32(kKeyWidth, width); |
| 1232 | mLastTrack->meta->setInt32(kKeyHeight, height); |
| 1233 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1234 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1235 | *offset = data_offset + sizeof(buffer); |
| 1236 | while (*offset < stop_offset) { |
| 1237 | status_t err = parseChunk(offset, depth + 1); |
| 1238 | if (err != OK) { |
| 1239 | return err; |
| 1240 | } |
| 1241 | } |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1242 | |
| 1243 | if (*offset != stop_offset) { |
| 1244 | return ERROR_MALFORMED; |
| 1245 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1246 | break; |
| 1247 | } |
| 1248 | |
| 1249 | case FOURCC('s', 't', 'c', 'o'): |
| 1250 | case FOURCC('c', 'o', '6', '4'): |
| 1251 | { |
| 1252 | status_t err = |
| 1253 | mLastTrack->sampleTable->setChunkOffsetParams( |
| 1254 | chunk_type, data_offset, chunk_data_size); |
| 1255 | |
| 1256 | if (err != OK) { |
| 1257 | return err; |
| 1258 | } |
| 1259 | |
| 1260 | *offset += chunk_size; |
| 1261 | break; |
| 1262 | } |
| 1263 | |
| 1264 | case FOURCC('s', 't', 's', 'c'): |
| 1265 | { |
| 1266 | status_t err = |
| 1267 | mLastTrack->sampleTable->setSampleToChunkParams( |
| 1268 | data_offset, chunk_data_size); |
| 1269 | |
| 1270 | if (err != OK) { |
| 1271 | return err; |
| 1272 | } |
| 1273 | |
| 1274 | *offset += chunk_size; |
| 1275 | break; |
| 1276 | } |
| 1277 | |
| 1278 | case FOURCC('s', 't', 's', 'z'): |
| 1279 | case FOURCC('s', 't', 'z', '2'): |
| 1280 | { |
| 1281 | status_t err = |
| 1282 | mLastTrack->sampleTable->setSampleSizeParams( |
| 1283 | chunk_type, data_offset, chunk_data_size); |
| 1284 | |
| 1285 | if (err != OK) { |
| 1286 | return err; |
| 1287 | } |
| 1288 | |
Andreas Huber | 738c431 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1289 | size_t max_size; |
Andreas Huber | 49110ce | 2010-09-09 10:10:15 -0700 | [diff] [blame] | 1290 | err = mLastTrack->sampleTable->getMaxSampleSize(&max_size); |
| 1291 | |
| 1292 | if (err != OK) { |
| 1293 | return err; |
| 1294 | } |
Andreas Huber | 738c431 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1295 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1296 | if (max_size != 0) { |
| 1297 | // Assume that a given buffer only contains at most 10 chunks, |
| 1298 | // each chunk originally prefixed with a 2 byte length will |
| 1299 | // have a 4 byte header (0x00 0x00 0x00 0x01) after conversion, |
| 1300 | // and thus will grow by 2 bytes per chunk. |
| 1301 | mLastTrack->meta->setInt32(kKeyMaxInputSize, max_size + 10 * 2); |
| 1302 | } else { |
| 1303 | // No size was specified. Pick a conservatively large size. |
| 1304 | int32_t width, height; |
| 1305 | if (mLastTrack->meta->findInt32(kKeyWidth, &width) && |
| 1306 | mLastTrack->meta->findInt32(kKeyHeight, &height)) { |
| 1307 | mLastTrack->meta->setInt32(kKeyMaxInputSize, width * height * 3 / 2); |
| 1308 | } else { |
| 1309 | ALOGE("No width or height, assuming worst case 1080p"); |
| 1310 | mLastTrack->meta->setInt32(kKeyMaxInputSize, 3110400); |
| 1311 | } |
| 1312 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1313 | *offset += chunk_size; |
James Dong | 113a954 | 2011-01-19 00:13:55 -0800 | [diff] [blame] | 1314 | |
| 1315 | // Calculate average frame rate. |
| 1316 | const char *mime; |
| 1317 | CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime)); |
| 1318 | if (!strncasecmp("video/", mime, 6)) { |
| 1319 | size_t nSamples = mLastTrack->sampleTable->countSamples(); |
| 1320 | int64_t durationUs; |
| 1321 | if (mLastTrack->meta->findInt64(kKeyDuration, &durationUs)) { |
| 1322 | if (durationUs > 0) { |
| 1323 | int32_t frameRate = (nSamples * 1000000LL + |
| 1324 | (durationUs >> 1)) / durationUs; |
| 1325 | mLastTrack->meta->setInt32(kKeyFrameRate, frameRate); |
| 1326 | } |
| 1327 | } |
| 1328 | } |
| 1329 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1330 | break; |
| 1331 | } |
| 1332 | |
| 1333 | case FOURCC('s', 't', 't', 's'): |
| 1334 | { |
| 1335 | status_t err = |
| 1336 | mLastTrack->sampleTable->setTimeToSampleParams( |
| 1337 | data_offset, chunk_data_size); |
| 1338 | |
| 1339 | if (err != OK) { |
| 1340 | return err; |
| 1341 | } |
| 1342 | |
| 1343 | *offset += chunk_size; |
| 1344 | break; |
| 1345 | } |
| 1346 | |
Andreas Huber | 4931bb5 | 2011-02-03 13:18:16 -0800 | [diff] [blame] | 1347 | case FOURCC('c', 't', 't', 's'): |
| 1348 | { |
| 1349 | status_t err = |
| 1350 | mLastTrack->sampleTable->setCompositionTimeToSampleParams( |
| 1351 | data_offset, chunk_data_size); |
| 1352 | |
| 1353 | if (err != OK) { |
| 1354 | return err; |
| 1355 | } |
| 1356 | |
| 1357 | *offset += chunk_size; |
| 1358 | break; |
| 1359 | } |
| 1360 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1361 | case FOURCC('s', 't', 's', 's'): |
| 1362 | { |
| 1363 | status_t err = |
| 1364 | mLastTrack->sampleTable->setSyncSampleParams( |
| 1365 | data_offset, chunk_data_size); |
| 1366 | |
| 1367 | if (err != OK) { |
| 1368 | return err; |
| 1369 | } |
| 1370 | |
| 1371 | *offset += chunk_size; |
| 1372 | break; |
| 1373 | } |
| 1374 | |
James Dong | 4948818 | 2011-11-09 00:48:56 -0800 | [diff] [blame] | 1375 | // @xyz |
| 1376 | case FOURCC('\xA9', 'x', 'y', 'z'): |
| 1377 | { |
| 1378 | // Best case the total data length inside "@xyz" box |
| 1379 | // would be 8, for instance "@xyz" + "\x00\x04\x15\xc7" + "0+0/", |
| 1380 | // where "\x00\x04" is the text string length with value = 4, |
| 1381 | // "\0x15\xc7" is the language code = en, and "0+0" is a |
| 1382 | // location (string) value with longitude = 0 and latitude = 0. |
| 1383 | if (chunk_data_size < 8) { |
| 1384 | return ERROR_MALFORMED; |
| 1385 | } |
| 1386 | |
| 1387 | // Worst case the location string length would be 18, |
| 1388 | // for instance +90.0000-180.0000, without the trailing "/" and |
| 1389 | // the string length + language code. |
| 1390 | char buffer[18]; |
| 1391 | |
| 1392 | // Substracting 5 from the data size is because the text string length + |
| 1393 | // language code takes 4 bytes, and the trailing slash "/" takes 1 byte. |
| 1394 | off64_t location_length = chunk_data_size - 5; |
| 1395 | if (location_length >= (off64_t) sizeof(buffer)) { |
| 1396 | return ERROR_MALFORMED; |
| 1397 | } |
| 1398 | |
| 1399 | if (mDataSource->readAt( |
| 1400 | data_offset + 4, buffer, location_length) < location_length) { |
| 1401 | return ERROR_IO; |
| 1402 | } |
| 1403 | |
| 1404 | buffer[location_length] = '\0'; |
| 1405 | mFileMetaData->setCString(kKeyLocation, buffer); |
| 1406 | *offset += chunk_size; |
| 1407 | break; |
| 1408 | } |
| 1409 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1410 | case FOURCC('e', 's', 'd', 's'): |
| 1411 | { |
| 1412 | if (chunk_data_size < 4) { |
| 1413 | return ERROR_MALFORMED; |
| 1414 | } |
| 1415 | |
| 1416 | uint8_t buffer[256]; |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1417 | if (chunk_data_size > (off64_t)sizeof(buffer)) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1418 | return ERROR_BUFFER_TOO_SMALL; |
| 1419 | } |
| 1420 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1421 | if (mDataSource->readAt( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1422 | data_offset, buffer, chunk_data_size) < chunk_data_size) { |
| 1423 | return ERROR_IO; |
| 1424 | } |
| 1425 | |
| 1426 | if (U32_AT(buffer) != 0) { |
| 1427 | // Should be version 0, flags 0. |
| 1428 | return ERROR_MALFORMED; |
| 1429 | } |
| 1430 | |
| 1431 | mLastTrack->meta->setData( |
| 1432 | kKeyESDS, kTypeESDS, &buffer[4], chunk_data_size - 4); |
| 1433 | |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1434 | if (mPath.size() >= 2 |
| 1435 | && mPath[mPath.size() - 2] == FOURCC('m', 'p', '4', 'a')) { |
| 1436 | // Information from the ESDS must be relied on for proper |
| 1437 | // setup of sample rate and channel count for MPEG4 Audio. |
| 1438 | // The generic header appears to only contain generic |
| 1439 | // information... |
| 1440 | |
| 1441 | status_t err = updateAudioTrackInfoFromESDS_MPEG4Audio( |
| 1442 | &buffer[4], chunk_data_size - 4); |
| 1443 | |
| 1444 | if (err != OK) { |
| 1445 | return err; |
| 1446 | } |
| 1447 | } |
| 1448 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1449 | *offset += chunk_size; |
| 1450 | break; |
| 1451 | } |
| 1452 | |
| 1453 | case FOURCC('a', 'v', 'c', 'C'): |
| 1454 | { |
Jan Olof Svensson | 0fd2883 | 2012-09-26 09:08:11 +0200 | [diff] [blame] | 1455 | sp<ABuffer> buffer = new ABuffer(chunk_data_size); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1456 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1457 | if (mDataSource->readAt( |
Jan Olof Svensson | 0fd2883 | 2012-09-26 09:08:11 +0200 | [diff] [blame] | 1458 | data_offset, buffer->data(), chunk_data_size) < chunk_data_size) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1459 | return ERROR_IO; |
| 1460 | } |
| 1461 | |
| 1462 | mLastTrack->meta->setData( |
Jan Olof Svensson | 0fd2883 | 2012-09-26 09:08:11 +0200 | [diff] [blame] | 1463 | kKeyAVCC, kTypeAVCC, buffer->data(), chunk_data_size); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1464 | |
| 1465 | *offset += chunk_size; |
| 1466 | break; |
| 1467 | } |
| 1468 | |
James Dong | 244ba87 | 2011-02-11 15:21:45 -0800 | [diff] [blame] | 1469 | case FOURCC('d', '2', '6', '3'): |
| 1470 | { |
James Dong | 17e89b5 | 2011-02-23 17:07:49 -0800 | [diff] [blame] | 1471 | /* |
| 1472 | * d263 contains a fixed 7 bytes part: |
| 1473 | * vendor - 4 bytes |
| 1474 | * version - 1 byte |
| 1475 | * level - 1 byte |
| 1476 | * profile - 1 byte |
| 1477 | * optionally, "d263" box itself may contain a 16-byte |
| 1478 | * bit rate box (bitr) |
| 1479 | * average bit rate - 4 bytes |
| 1480 | * max bit rate - 4 bytes |
| 1481 | */ |
| 1482 | char buffer[23]; |
| 1483 | if (chunk_data_size != 7 && |
| 1484 | chunk_data_size != 23) { |
Steve Block | 29357bc | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 1485 | ALOGE("Incorrect D263 box size %lld", chunk_data_size); |
James Dong | 244ba87 | 2011-02-11 15:21:45 -0800 | [diff] [blame] | 1486 | return ERROR_MALFORMED; |
| 1487 | } |
| 1488 | |
| 1489 | if (mDataSource->readAt( |
| 1490 | data_offset, buffer, chunk_data_size) < chunk_data_size) { |
| 1491 | return ERROR_IO; |
| 1492 | } |
| 1493 | |
| 1494 | mLastTrack->meta->setData(kKeyD263, kTypeD263, buffer, chunk_data_size); |
| 1495 | |
| 1496 | *offset += chunk_size; |
| 1497 | break; |
| 1498 | } |
| 1499 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1500 | case FOURCC('m', 'e', 't', 'a'): |
| 1501 | { |
| 1502 | uint8_t buffer[4]; |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1503 | if (chunk_data_size < (off64_t)sizeof(buffer)) { |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1504 | return ERROR_MALFORMED; |
| 1505 | } |
| 1506 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1507 | if (mDataSource->readAt( |
| 1508 | data_offset, buffer, 4) < 4) { |
| 1509 | return ERROR_IO; |
| 1510 | } |
| 1511 | |
| 1512 | if (U32_AT(buffer) != 0) { |
| 1513 | // Should be version 0, flags 0. |
Andreas Huber | ea5ea10 | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 1514 | |
| 1515 | // If it's not, let's assume this is one of those |
| 1516 | // apparently malformed chunks that don't have flags |
| 1517 | // and completely different semantics than what's |
| 1518 | // in the MPEG4 specs and skip it. |
| 1519 | *offset += chunk_size; |
| 1520 | return OK; |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1521 | } |
| 1522 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1523 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1524 | *offset = data_offset + sizeof(buffer); |
| 1525 | while (*offset < stop_offset) { |
| 1526 | status_t err = parseChunk(offset, depth + 1); |
| 1527 | if (err != OK) { |
| 1528 | return err; |
| 1529 | } |
| 1530 | } |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1531 | |
| 1532 | if (*offset != stop_offset) { |
| 1533 | return ERROR_MALFORMED; |
| 1534 | } |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1535 | break; |
| 1536 | } |
| 1537 | |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 1538 | case FOURCC('m', 'e', 'a', 'n'): |
| 1539 | case FOURCC('n', 'a', 'm', 'e'): |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1540 | case FOURCC('d', 'a', 't', 'a'): |
| 1541 | { |
| 1542 | if (mPath.size() == 6 && underMetaDataPath(mPath)) { |
| 1543 | status_t err = parseMetaData(data_offset, chunk_data_size); |
| 1544 | |
| 1545 | if (err != OK) { |
| 1546 | return err; |
| 1547 | } |
| 1548 | } |
| 1549 | |
| 1550 | *offset += chunk_size; |
| 1551 | break; |
| 1552 | } |
| 1553 | |
| 1554 | case FOURCC('m', 'v', 'h', 'd'): |
| 1555 | { |
| 1556 | if (chunk_data_size < 12) { |
| 1557 | return ERROR_MALFORMED; |
| 1558 | } |
| 1559 | |
| 1560 | uint8_t header[12]; |
| 1561 | if (mDataSource->readAt( |
| 1562 | data_offset, header, sizeof(header)) |
| 1563 | < (ssize_t)sizeof(header)) { |
| 1564 | return ERROR_IO; |
| 1565 | } |
| 1566 | |
| 1567 | int64_t creationTime; |
| 1568 | if (header[0] == 1) { |
| 1569 | creationTime = U64_AT(&header[4]); |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1570 | } else if (header[0] != 0) { |
| 1571 | return ERROR_MALFORMED; |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1572 | } else { |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1573 | creationTime = U32_AT(&header[4]); |
| 1574 | } |
| 1575 | |
| 1576 | String8 s; |
| 1577 | convertTimeToDate(creationTime, &s); |
| 1578 | |
| 1579 | mFileMetaData->setCString(kKeyDate, s.string()); |
| 1580 | |
| 1581 | *offset += chunk_size; |
| 1582 | break; |
| 1583 | } |
| 1584 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 1585 | case FOURCC('m', 'd', 'a', 't'): |
| 1586 | { |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 1587 | ALOGV("mdat chunk, drm: %d", mIsDrm); |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 1588 | if (!mIsDrm) { |
| 1589 | *offset += chunk_size; |
| 1590 | break; |
| 1591 | } |
| 1592 | |
| 1593 | if (chunk_size < 8) { |
| 1594 | return ERROR_MALFORMED; |
| 1595 | } |
| 1596 | |
| 1597 | return parseDrmSINF(offset, data_offset); |
| 1598 | } |
| 1599 | |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1600 | case FOURCC('h', 'd', 'l', 'r'): |
| 1601 | { |
| 1602 | uint32_t buffer; |
| 1603 | if (mDataSource->readAt( |
| 1604 | data_offset + 8, &buffer, 4) < 4) { |
| 1605 | return ERROR_IO; |
| 1606 | } |
| 1607 | |
| 1608 | uint32_t type = ntohl(buffer); |
| 1609 | // For the 3GPP file format, the handler-type within the 'hdlr' box |
Insun Kang | e26dd87 | 2011-11-10 16:11:26 +0900 | [diff] [blame] | 1610 | // shall be 'text'. We also want to support 'sbtl' handler type |
| 1611 | // for a practical reason as various MPEG4 containers use it. |
| 1612 | if (type == FOURCC('t', 'e', 'x', 't') || type == FOURCC('s', 'b', 't', 'l')) { |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1613 | mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_TEXT_3GPP); |
| 1614 | } |
| 1615 | |
| 1616 | *offset += chunk_size; |
| 1617 | break; |
| 1618 | } |
| 1619 | |
Gloria Wang | 7a1e3e8 | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 1620 | case FOURCC('t', 'x', '3', 'g'): |
| 1621 | { |
Gloria Wang | 3b573f7 | 2011-05-31 16:08:47 -0700 | [diff] [blame] | 1622 | uint32_t type; |
| 1623 | const void *data; |
| 1624 | size_t size = 0; |
| 1625 | if (!mLastTrack->meta->findData( |
| 1626 | kKeyTextFormatData, &type, &data, &size)) { |
| 1627 | size = 0; |
| 1628 | } |
| 1629 | |
| 1630 | uint8_t *buffer = new uint8_t[size + chunk_size]; |
| 1631 | |
| 1632 | if (size > 0) { |
| 1633 | memcpy(buffer, data, size); |
| 1634 | } |
| 1635 | |
| 1636 | if ((size_t)(mDataSource->readAt(*offset, buffer + size, chunk_size)) |
| 1637 | < chunk_size) { |
| 1638 | delete[] buffer; |
| 1639 | buffer = NULL; |
| 1640 | |
| 1641 | return ERROR_IO; |
| 1642 | } |
| 1643 | |
| 1644 | mLastTrack->meta->setData( |
| 1645 | kKeyTextFormatData, 0, buffer, size + chunk_size); |
| 1646 | |
| 1647 | delete[] buffer; |
Gloria Wang | 7a1e3e8 | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 1648 | |
| 1649 | *offset += chunk_size; |
| 1650 | break; |
| 1651 | } |
| 1652 | |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 1653 | case FOURCC('c', 'o', 'v', 'r'): |
| 1654 | { |
| 1655 | if (mFileMetaData != NULL) { |
Steve Block | 3856b09 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 1656 | ALOGV("chunk_data_size = %lld and data_offset = %lld", |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 1657 | chunk_data_size, data_offset); |
Jens Gulin | 2cac3fc | 2012-09-10 15:54:40 +0200 | [diff] [blame] | 1658 | sp<ABuffer> buffer = new ABuffer(chunk_data_size + 1); |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 1659 | if (mDataSource->readAt( |
Jens Gulin | 2cac3fc | 2012-09-10 15:54:40 +0200 | [diff] [blame] | 1660 | data_offset, buffer->data(), chunk_data_size) != (ssize_t)chunk_data_size) { |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 1661 | return ERROR_IO; |
| 1662 | } |
| 1663 | const int kSkipBytesOfDataBox = 16; |
| 1664 | mFileMetaData->setData( |
| 1665 | kKeyAlbumArt, MetaData::TYPE_NONE, |
Jens Gulin | 2cac3fc | 2012-09-10 15:54:40 +0200 | [diff] [blame] | 1666 | buffer->data() + kSkipBytesOfDataBox, chunk_data_size - kSkipBytesOfDataBox); |
James Dong | 515e855 | 2011-05-25 15:02:50 -0700 | [diff] [blame] | 1667 | } |
| 1668 | |
| 1669 | *offset += chunk_size; |
| 1670 | break; |
| 1671 | } |
| 1672 | |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 1673 | case FOURCC('-', '-', '-', '-'): |
| 1674 | { |
| 1675 | mLastCommentMean.clear(); |
| 1676 | mLastCommentName.clear(); |
| 1677 | mLastCommentData.clear(); |
| 1678 | *offset += chunk_size; |
| 1679 | break; |
| 1680 | } |
| 1681 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1682 | case FOURCC('s', 'i', 'd', 'x'): |
| 1683 | { |
| 1684 | parseSegmentIndex(data_offset, chunk_data_size); |
| 1685 | *offset += chunk_size; |
| 1686 | return UNKNOWN_ERROR; // stop parsing after sidx |
| 1687 | } |
| 1688 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1689 | default: |
| 1690 | { |
| 1691 | *offset += chunk_size; |
| 1692 | break; |
| 1693 | } |
| 1694 | } |
| 1695 | |
| 1696 | return OK; |
| 1697 | } |
| 1698 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 1699 | status_t MPEG4Extractor::parseSegmentIndex(off64_t offset, size_t size) { |
| 1700 | ALOGV("MPEG4Extractor::parseSegmentIndex"); |
| 1701 | |
| 1702 | if (size < 12) { |
| 1703 | return -EINVAL; |
| 1704 | } |
| 1705 | |
| 1706 | uint32_t flags; |
| 1707 | if (!mDataSource->getUInt32(offset, &flags)) { |
| 1708 | return ERROR_MALFORMED; |
| 1709 | } |
| 1710 | |
| 1711 | uint32_t version = flags >> 24; |
| 1712 | flags &= 0xffffff; |
| 1713 | |
| 1714 | ALOGV("sidx version %d", version); |
| 1715 | |
| 1716 | uint32_t referenceId; |
| 1717 | if (!mDataSource->getUInt32(offset + 4, &referenceId)) { |
| 1718 | return ERROR_MALFORMED; |
| 1719 | } |
| 1720 | |
| 1721 | uint32_t timeScale; |
| 1722 | if (!mDataSource->getUInt32(offset + 8, &timeScale)) { |
| 1723 | return ERROR_MALFORMED; |
| 1724 | } |
| 1725 | ALOGV("sidx refid/timescale: %d/%d", referenceId, timeScale); |
| 1726 | |
| 1727 | uint64_t earliestPresentationTime; |
| 1728 | uint64_t firstOffset; |
| 1729 | |
| 1730 | offset += 12; |
| 1731 | size -= 12; |
| 1732 | |
| 1733 | if (version == 0) { |
| 1734 | if (size < 8) { |
| 1735 | return -EINVAL; |
| 1736 | } |
| 1737 | uint32_t tmp; |
| 1738 | if (!mDataSource->getUInt32(offset, &tmp)) { |
| 1739 | return ERROR_MALFORMED; |
| 1740 | } |
| 1741 | earliestPresentationTime = tmp; |
| 1742 | if (!mDataSource->getUInt32(offset + 4, &tmp)) { |
| 1743 | return ERROR_MALFORMED; |
| 1744 | } |
| 1745 | firstOffset = tmp; |
| 1746 | offset += 8; |
| 1747 | size -= 8; |
| 1748 | } else { |
| 1749 | if (size < 16) { |
| 1750 | return -EINVAL; |
| 1751 | } |
| 1752 | if (!mDataSource->getUInt64(offset, &earliestPresentationTime)) { |
| 1753 | return ERROR_MALFORMED; |
| 1754 | } |
| 1755 | if (!mDataSource->getUInt64(offset + 8, &firstOffset)) { |
| 1756 | return ERROR_MALFORMED; |
| 1757 | } |
| 1758 | offset += 16; |
| 1759 | size -= 16; |
| 1760 | } |
| 1761 | ALOGV("sidx pres/off: %Ld/%Ld", earliestPresentationTime, firstOffset); |
| 1762 | |
| 1763 | if (size < 4) { |
| 1764 | return -EINVAL; |
| 1765 | } |
| 1766 | |
| 1767 | uint16_t referenceCount; |
| 1768 | if (!mDataSource->getUInt16(offset + 2, &referenceCount)) { |
| 1769 | return ERROR_MALFORMED; |
| 1770 | } |
| 1771 | offset += 4; |
| 1772 | size -= 4; |
| 1773 | ALOGV("refcount: %d", referenceCount); |
| 1774 | |
| 1775 | if (size < referenceCount * 12) { |
| 1776 | return -EINVAL; |
| 1777 | } |
| 1778 | |
| 1779 | uint64_t total_duration = 0; |
| 1780 | for (unsigned int i = 0; i < referenceCount; i++) { |
| 1781 | uint32_t d1, d2, d3; |
| 1782 | |
| 1783 | if (!mDataSource->getUInt32(offset, &d1) || // size |
| 1784 | !mDataSource->getUInt32(offset + 4, &d2) || // duration |
| 1785 | !mDataSource->getUInt32(offset + 8, &d3)) { // flags |
| 1786 | return ERROR_MALFORMED; |
| 1787 | } |
| 1788 | |
| 1789 | if (d1 & 0x80000000) { |
| 1790 | ALOGW("sub-sidx boxes not supported yet"); |
| 1791 | } |
| 1792 | bool sap = d3 & 0x80000000; |
| 1793 | bool saptype = d3 >> 28; |
| 1794 | if (!sap || saptype > 2) { |
| 1795 | ALOGW("not a stream access point, or unsupported type"); |
| 1796 | } |
| 1797 | total_duration += d2; |
| 1798 | offset += 12; |
| 1799 | ALOGV(" item %d, %08x %08x %08x", i, d1, d2, d3); |
| 1800 | SidxEntry se; |
| 1801 | se.mSize = d1 & 0x7fffffff; |
| 1802 | se.mDurationUs = 1000000LL * d2 / timeScale; |
| 1803 | mSidxEntries.add(se); |
| 1804 | } |
| 1805 | |
| 1806 | mSidxDuration = total_duration * 1000000 / timeScale; |
| 1807 | ALOGV("duration: %lld", mSidxDuration); |
| 1808 | |
| 1809 | int64_t metaDuration; |
| 1810 | if (!mLastTrack->meta->findInt64(kKeyDuration, &metaDuration) || metaDuration == 0) { |
| 1811 | mLastTrack->meta->setInt64(kKeyDuration, mSidxDuration); |
| 1812 | } |
| 1813 | return OK; |
| 1814 | } |
| 1815 | |
| 1816 | |
| 1817 | |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1818 | status_t MPEG4Extractor::parseTrackHeader( |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1819 | off64_t data_offset, off64_t data_size) { |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1820 | if (data_size < 4) { |
| 1821 | return ERROR_MALFORMED; |
| 1822 | } |
| 1823 | |
| 1824 | uint8_t version; |
| 1825 | if (mDataSource->readAt(data_offset, &version, 1) < 1) { |
| 1826 | return ERROR_IO; |
| 1827 | } |
| 1828 | |
| 1829 | size_t dynSize = (version == 1) ? 36 : 24; |
| 1830 | |
| 1831 | uint8_t buffer[36 + 60]; |
| 1832 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1833 | if (data_size != (off64_t)dynSize + 60) { |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1834 | return ERROR_MALFORMED; |
| 1835 | } |
| 1836 | |
| 1837 | if (mDataSource->readAt( |
| 1838 | data_offset, buffer, data_size) < (ssize_t)data_size) { |
| 1839 | return ERROR_IO; |
| 1840 | } |
| 1841 | |
| 1842 | uint64_t ctime, mtime, duration; |
| 1843 | int32_t id; |
| 1844 | |
| 1845 | if (version == 1) { |
| 1846 | ctime = U64_AT(&buffer[4]); |
| 1847 | mtime = U64_AT(&buffer[12]); |
| 1848 | id = U32_AT(&buffer[20]); |
| 1849 | duration = U64_AT(&buffer[28]); |
| 1850 | } else { |
| 1851 | CHECK_EQ((unsigned)version, 0u); |
| 1852 | |
| 1853 | ctime = U32_AT(&buffer[4]); |
| 1854 | mtime = U32_AT(&buffer[8]); |
| 1855 | id = U32_AT(&buffer[12]); |
| 1856 | duration = U32_AT(&buffer[20]); |
| 1857 | } |
| 1858 | |
| 1859 | mLastTrack->meta->setInt32(kKeyTrackID, id); |
| 1860 | |
| 1861 | size_t matrixOffset = dynSize + 16; |
| 1862 | int32_t a00 = U32_AT(&buffer[matrixOffset]); |
| 1863 | int32_t a01 = U32_AT(&buffer[matrixOffset + 4]); |
| 1864 | int32_t dx = U32_AT(&buffer[matrixOffset + 8]); |
| 1865 | int32_t a10 = U32_AT(&buffer[matrixOffset + 12]); |
| 1866 | int32_t a11 = U32_AT(&buffer[matrixOffset + 16]); |
| 1867 | int32_t dy = U32_AT(&buffer[matrixOffset + 20]); |
| 1868 | |
| 1869 | #if 0 |
Steve Block | df64d15 | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 1870 | ALOGI("x' = %.2f * x + %.2f * y + %.2f", |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1871 | a00 / 65536.0f, a01 / 65536.0f, dx / 65536.0f); |
Steve Block | df64d15 | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 1872 | ALOGI("y' = %.2f * x + %.2f * y + %.2f", |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1873 | a10 / 65536.0f, a11 / 65536.0f, dy / 65536.0f); |
| 1874 | #endif |
| 1875 | |
| 1876 | uint32_t rotationDegrees; |
| 1877 | |
| 1878 | static const int32_t kFixedOne = 0x10000; |
| 1879 | if (a00 == kFixedOne && a01 == 0 && a10 == 0 && a11 == kFixedOne) { |
| 1880 | // Identity, no rotation |
| 1881 | rotationDegrees = 0; |
| 1882 | } else if (a00 == 0 && a01 == kFixedOne && a10 == -kFixedOne && a11 == 0) { |
| 1883 | rotationDegrees = 90; |
| 1884 | } else if (a00 == 0 && a01 == -kFixedOne && a10 == kFixedOne && a11 == 0) { |
| 1885 | rotationDegrees = 270; |
| 1886 | } else if (a00 == -kFixedOne && a01 == 0 && a10 == 0 && a11 == -kFixedOne) { |
| 1887 | rotationDegrees = 180; |
| 1888 | } else { |
Steve Block | 5ff1dd5 | 2012-01-05 23:22:43 +0000 | [diff] [blame] | 1889 | ALOGW("We only support 0,90,180,270 degree rotation matrices"); |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1890 | rotationDegrees = 0; |
| 1891 | } |
| 1892 | |
| 1893 | if (rotationDegrees != 0) { |
| 1894 | mLastTrack->meta->setInt32(kKeyRotation, rotationDegrees); |
| 1895 | } |
| 1896 | |
James Dong | b45c01c | 2011-01-16 11:30:13 -0800 | [diff] [blame] | 1897 | // Handle presentation display size, which could be different |
| 1898 | // from the image size indicated by kKeyWidth and kKeyHeight. |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1899 | uint32_t width = U32_AT(&buffer[dynSize + 52]); |
| 1900 | uint32_t height = U32_AT(&buffer[dynSize + 56]); |
James Dong | b45c01c | 2011-01-16 11:30:13 -0800 | [diff] [blame] | 1901 | mLastTrack->meta->setInt32(kKeyDisplayWidth, width >> 16); |
| 1902 | mLastTrack->meta->setInt32(kKeyDisplayHeight, height >> 16); |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1903 | |
| 1904 | return OK; |
| 1905 | } |
| 1906 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1907 | status_t MPEG4Extractor::parseMetaData(off64_t offset, size_t size) { |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1908 | if (size < 4) { |
| 1909 | return ERROR_MALFORMED; |
| 1910 | } |
| 1911 | |
| 1912 | uint8_t *buffer = new uint8_t[size + 1]; |
| 1913 | if (mDataSource->readAt( |
| 1914 | offset, buffer, size) != (ssize_t)size) { |
| 1915 | delete[] buffer; |
| 1916 | buffer = NULL; |
| 1917 | |
| 1918 | return ERROR_IO; |
| 1919 | } |
| 1920 | |
| 1921 | uint32_t flags = U32_AT(buffer); |
| 1922 | |
| 1923 | uint32_t metadataKey = 0; |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 1924 | char chunk[5]; |
| 1925 | MakeFourCCString(mPath[4], chunk); |
| 1926 | ALOGV("meta: %s @ %lld", chunk, offset); |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1927 | switch (mPath[4]) { |
| 1928 | case FOURCC(0xa9, 'a', 'l', 'b'): |
| 1929 | { |
| 1930 | metadataKey = kKeyAlbum; |
| 1931 | break; |
| 1932 | } |
| 1933 | case FOURCC(0xa9, 'A', 'R', 'T'): |
| 1934 | { |
| 1935 | metadataKey = kKeyArtist; |
| 1936 | break; |
| 1937 | } |
Marco Nelissen | 66ac4df | 2010-02-11 13:31:44 -0800 | [diff] [blame] | 1938 | case FOURCC('a', 'A', 'R', 'T'): |
| 1939 | { |
| 1940 | metadataKey = kKeyAlbumArtist; |
| 1941 | break; |
| 1942 | } |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1943 | case FOURCC(0xa9, 'd', 'a', 'y'): |
| 1944 | { |
| 1945 | metadataKey = kKeyYear; |
| 1946 | break; |
| 1947 | } |
| 1948 | case FOURCC(0xa9, 'n', 'a', 'm'): |
| 1949 | { |
| 1950 | metadataKey = kKeyTitle; |
| 1951 | break; |
| 1952 | } |
| 1953 | case FOURCC(0xa9, 'w', 'r', 't'): |
| 1954 | { |
| 1955 | metadataKey = kKeyWriter; |
| 1956 | break; |
| 1957 | } |
| 1958 | case FOURCC('c', 'o', 'v', 'r'): |
| 1959 | { |
| 1960 | metadataKey = kKeyAlbumArt; |
| 1961 | break; |
| 1962 | } |
| 1963 | case FOURCC('g', 'n', 'r', 'e'): |
| 1964 | { |
| 1965 | metadataKey = kKeyGenre; |
| 1966 | break; |
| 1967 | } |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1968 | case FOURCC(0xa9, 'g', 'e', 'n'): |
| 1969 | { |
| 1970 | metadataKey = kKeyGenre; |
| 1971 | break; |
| 1972 | } |
Marco Nelissen | 11f8109 | 2011-01-06 11:12:17 -0800 | [diff] [blame] | 1973 | case FOURCC('c', 'p', 'i', 'l'): |
| 1974 | { |
| 1975 | if (size == 9 && flags == 21) { |
| 1976 | char tmp[16]; |
| 1977 | sprintf(tmp, "%d", |
| 1978 | (int)buffer[size - 1]); |
| 1979 | |
| 1980 | mFileMetaData->setCString(kKeyCompilation, tmp); |
| 1981 | } |
| 1982 | break; |
| 1983 | } |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1984 | case FOURCC('t', 'r', 'k', 'n'): |
| 1985 | { |
| 1986 | if (size == 16 && flags == 0) { |
| 1987 | char tmp[16]; |
Andreas Lillvik | 791841a | 2010-10-13 15:37:01 +0200 | [diff] [blame] | 1988 | uint16_t* pTrack = (uint16_t*)&buffer[10]; |
| 1989 | uint16_t* pTotalTracks = (uint16_t*)&buffer[12]; |
| 1990 | sprintf(tmp, "%d/%d", ntohs(*pTrack), ntohs(*pTotalTracks)); |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1991 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1992 | mFileMetaData->setCString(kKeyCDTrackNumber, tmp); |
| 1993 | } |
| 1994 | break; |
| 1995 | } |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1996 | case FOURCC('d', 'i', 's', 'k'): |
| 1997 | { |
Andreas Lillvik | 791841a | 2010-10-13 15:37:01 +0200 | [diff] [blame] | 1998 | if ((size == 14 || size == 16) && flags == 0) { |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1999 | char tmp[16]; |
Andreas Lillvik | 791841a | 2010-10-13 15:37:01 +0200 | [diff] [blame] | 2000 | uint16_t* pDisc = (uint16_t*)&buffer[10]; |
| 2001 | uint16_t* pTotalDiscs = (uint16_t*)&buffer[12]; |
| 2002 | sprintf(tmp, "%d/%d", ntohs(*pDisc), ntohs(*pTotalDiscs)); |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 2003 | |
| 2004 | mFileMetaData->setCString(kKeyDiscNumber, tmp); |
| 2005 | } |
| 2006 | break; |
| 2007 | } |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 2008 | case FOURCC('-', '-', '-', '-'): |
| 2009 | { |
| 2010 | buffer[size] = '\0'; |
| 2011 | switch (mPath[5]) { |
| 2012 | case FOURCC('m', 'e', 'a', 'n'): |
| 2013 | mLastCommentMean.setTo((const char *)buffer + 4); |
| 2014 | break; |
| 2015 | case FOURCC('n', 'a', 'm', 'e'): |
| 2016 | mLastCommentName.setTo((const char *)buffer + 4); |
| 2017 | break; |
| 2018 | case FOURCC('d', 'a', 't', 'a'): |
| 2019 | mLastCommentData.setTo((const char *)buffer + 8); |
| 2020 | break; |
| 2021 | } |
John Grossman | 7abab13 | 2012-09-07 11:41:07 -0700 | [diff] [blame] | 2022 | |
| 2023 | // Once we have a set of mean/name/data info, go ahead and process |
| 2024 | // it to see if its something we are interested in. Whether or not |
| 2025 | // were are interested in the specific tag, make sure to clear out |
| 2026 | // the set so we can be ready to process another tuple should one |
| 2027 | // show up later in the file. |
| 2028 | if ((mLastCommentMean.length() != 0) && |
| 2029 | (mLastCommentName.length() != 0) && |
| 2030 | (mLastCommentData.length() != 0)) { |
| 2031 | |
| 2032 | if (mLastCommentMean == "com.apple.iTunes" |
| 2033 | && mLastCommentName == "iTunSMPB") { |
| 2034 | int32_t delay, padding; |
| 2035 | if (sscanf(mLastCommentData, |
| 2036 | " %*x %x %x %*x", &delay, &padding) == 2) { |
| 2037 | mLastTrack->meta->setInt32(kKeyEncoderDelay, delay); |
| 2038 | mLastTrack->meta->setInt32(kKeyEncoderPadding, padding); |
| 2039 | } |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 2040 | } |
John Grossman | 7abab13 | 2012-09-07 11:41:07 -0700 | [diff] [blame] | 2041 | |
Marco Nelissen | 5d2f8ba | 2012-03-20 10:05:06 -0700 | [diff] [blame] | 2042 | mLastCommentMean.clear(); |
| 2043 | mLastCommentName.clear(); |
| 2044 | mLastCommentData.clear(); |
| 2045 | } |
| 2046 | break; |
| 2047 | } |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 2048 | |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 2049 | default: |
| 2050 | break; |
| 2051 | } |
| 2052 | |
| 2053 | if (size >= 8 && metadataKey) { |
| 2054 | if (metadataKey == kKeyAlbumArt) { |
| 2055 | mFileMetaData->setData( |
| 2056 | kKeyAlbumArt, MetaData::TYPE_NONE, |
| 2057 | buffer + 8, size - 8); |
| 2058 | } else if (metadataKey == kKeyGenre) { |
| 2059 | if (flags == 0) { |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 2060 | // uint8_t genre code, iTunes genre codes are |
| 2061 | // the standard id3 codes, except they start |
| 2062 | // at 1 instead of 0 (e.g. Pop is 14, not 13) |
| 2063 | // We use standard id3 numbering, so subtract 1. |
| 2064 | int genrecode = (int)buffer[size - 1]; |
| 2065 | genrecode--; |
| 2066 | if (genrecode < 0) { |
| 2067 | genrecode = 255; // reserved for 'unknown genre' |
| 2068 | } |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 2069 | char genre[10]; |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 2070 | sprintf(genre, "%d", genrecode); |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 2071 | |
| 2072 | mFileMetaData->setCString(metadataKey, genre); |
Marco Nelissen | 26bae54 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 2073 | } else if (flags == 1) { |
| 2074 | // custom genre string |
| 2075 | buffer[size] = '\0'; |
| 2076 | |
| 2077 | mFileMetaData->setCString( |
| 2078 | metadataKey, (const char *)buffer + 8); |
Andreas Huber | 72b8c5a | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 2079 | } |
| 2080 | } else { |
| 2081 | buffer[size] = '\0'; |
| 2082 | |
| 2083 | mFileMetaData->setCString( |
| 2084 | metadataKey, (const char *)buffer + 8); |
| 2085 | } |
| 2086 | } |
| 2087 | |
| 2088 | delete[] buffer; |
| 2089 | buffer = NULL; |
| 2090 | |
| 2091 | return OK; |
| 2092 | } |
| 2093 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2094 | sp<MediaSource> MPEG4Extractor::getTrack(size_t index) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2095 | status_t err; |
| 2096 | if ((err = readMetaData()) != OK) { |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2097 | return NULL; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2098 | } |
| 2099 | |
| 2100 | Track *track = mFirstTrack; |
| 2101 | while (index > 0) { |
| 2102 | if (track == NULL) { |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2103 | return NULL; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2104 | } |
| 2105 | |
| 2106 | track = track->next; |
| 2107 | --index; |
| 2108 | } |
| 2109 | |
Andreas Huber | 371e243 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 2110 | if (track == NULL) { |
| 2111 | return NULL; |
| 2112 | } |
| 2113 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2114 | ALOGV("getTrack called, pssh: %d", mPssh.size()); |
| 2115 | |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2116 | return new MPEG4Source( |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2117 | track->meta, mDataSource, track->timescale, track->sampleTable, |
| 2118 | mSidxEntries, mMoofOffset); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2119 | } |
| 2120 | |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 2121 | // static |
| 2122 | status_t MPEG4Extractor::verifyTrack(Track *track) { |
| 2123 | const char *mime; |
| 2124 | CHECK(track->meta->findCString(kKeyMIMEType, &mime)); |
| 2125 | |
| 2126 | uint32_t type; |
| 2127 | const void *data; |
| 2128 | size_t size; |
| 2129 | if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) { |
| 2130 | if (!track->meta->findData(kKeyAVCC, &type, &data, &size) |
| 2131 | || type != kTypeAVCC) { |
| 2132 | return ERROR_MALFORMED; |
| 2133 | } |
| 2134 | } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) |
| 2135 | || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) { |
| 2136 | if (!track->meta->findData(kKeyESDS, &type, &data, &size) |
| 2137 | || type != kTypeESDS) { |
| 2138 | return ERROR_MALFORMED; |
| 2139 | } |
| 2140 | } |
| 2141 | |
Andreas Huber | 169c286 | 2011-08-17 13:03:51 -0700 | [diff] [blame] | 2142 | if (!track->sampleTable->isValid()) { |
| 2143 | // Make sure we have all the metadata we need. |
| 2144 | return ERROR_MALFORMED; |
| 2145 | } |
| 2146 | |
Andreas Huber | bd5d93f | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 2147 | return OK; |
| 2148 | } |
| 2149 | |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2150 | status_t MPEG4Extractor::updateAudioTrackInfoFromESDS_MPEG4Audio( |
| 2151 | const void *esds_data, size_t esds_size) { |
| 2152 | ESDS esds(esds_data, esds_size); |
Andreas Huber | 81f82c3 | 2010-04-12 16:05:57 -0700 | [diff] [blame] | 2153 | |
| 2154 | uint8_t objectTypeIndication; |
| 2155 | if (esds.getObjectTypeIndication(&objectTypeIndication) != OK) { |
| 2156 | return ERROR_MALFORMED; |
| 2157 | } |
| 2158 | |
| 2159 | if (objectTypeIndication == 0xe1) { |
| 2160 | // This isn't MPEG4 audio at all, it's QCELP 14k... |
| 2161 | mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_QCELP); |
| 2162 | return OK; |
| 2163 | } |
| 2164 | |
James Dong | 633b4c8 | 2011-02-24 21:16:54 -0800 | [diff] [blame] | 2165 | if (objectTypeIndication == 0x6b) { |
| 2166 | // The media subtype is MP3 audio |
| 2167 | // Our software MP3 audio decoder may not be able to handle |
| 2168 | // packetized MP3 audio; for now, lets just return ERROR_UNSUPPORTED |
Steve Block | 29357bc | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 2169 | ALOGE("MP3 track in MP4/3GPP file is not supported"); |
James Dong | 633b4c8 | 2011-02-24 21:16:54 -0800 | [diff] [blame] | 2170 | return ERROR_UNSUPPORTED; |
| 2171 | } |
| 2172 | |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2173 | const uint8_t *csd; |
| 2174 | size_t csd_size; |
| 2175 | if (esds.getCodecSpecificInfo( |
| 2176 | (const void **)&csd, &csd_size) != OK) { |
| 2177 | return ERROR_MALFORMED; |
| 2178 | } |
| 2179 | |
| 2180 | #if 0 |
| 2181 | printf("ESD of size %d\n", csd_size); |
| 2182 | hexdump(csd, csd_size); |
| 2183 | #endif |
| 2184 | |
Andreas Huber | a65ccbf | 2010-08-18 09:58:30 -0700 | [diff] [blame] | 2185 | if (csd_size == 0) { |
| 2186 | // There's no further information, i.e. no codec specific data |
| 2187 | // Let's assume that the information provided in the mpeg4 headers |
| 2188 | // is accurate and hope for the best. |
| 2189 | |
| 2190 | return OK; |
| 2191 | } |
| 2192 | |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2193 | if (csd_size < 2) { |
| 2194 | return ERROR_MALFORMED; |
| 2195 | } |
| 2196 | |
Dave Burke | aeb8fd4 | 2012-04-19 00:14:27 -0700 | [diff] [blame] | 2197 | ABitReader br(csd, csd_size); |
| 2198 | uint32_t objectType = br.getBits(5); |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2199 | |
Dave Burke | aeb8fd4 | 2012-04-19 00:14:27 -0700 | [diff] [blame] | 2200 | if (objectType == 31) { // AAC-ELD => additional 6 bits |
| 2201 | objectType = 32 + br.getBits(6); |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2202 | } |
| 2203 | |
Dave Burke | aeb8fd4 | 2012-04-19 00:14:27 -0700 | [diff] [blame] | 2204 | uint32_t freqIndex = br.getBits(4); |
| 2205 | |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2206 | int32_t sampleRate = 0; |
| 2207 | int32_t numChannels = 0; |
| 2208 | if (freqIndex == 15) { |
| 2209 | if (csd_size < 5) { |
| 2210 | return ERROR_MALFORMED; |
| 2211 | } |
Dave Burke | aeb8fd4 | 2012-04-19 00:14:27 -0700 | [diff] [blame] | 2212 | sampleRate = br.getBits(24); |
| 2213 | numChannels = br.getBits(4); |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2214 | } else { |
Marco Nelissen | 0364a91 | 2013-03-14 14:50:47 -0700 | [diff] [blame] | 2215 | numChannels = br.getBits(4); |
| 2216 | if (objectType == 5) { |
| 2217 | // SBR specific config per 14496-3 table 1.13 |
| 2218 | freqIndex = br.getBits(4); |
| 2219 | if (freqIndex == 15) { |
| 2220 | if (csd_size < 8) { |
| 2221 | return ERROR_MALFORMED; |
| 2222 | } |
| 2223 | sampleRate = br.getBits(24); |
| 2224 | } |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2225 | } |
| 2226 | |
Marco Nelissen | 0364a91 | 2013-03-14 14:50:47 -0700 | [diff] [blame] | 2227 | if (sampleRate == 0) { |
| 2228 | static uint32_t kSamplingRate[] = { |
| 2229 | 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, |
| 2230 | 16000, 12000, 11025, 8000, 7350 |
| 2231 | }; |
| 2232 | |
| 2233 | if (freqIndex == 13 || freqIndex == 14) { |
| 2234 | return ERROR_MALFORMED; |
| 2235 | } |
| 2236 | |
| 2237 | sampleRate = kSamplingRate[freqIndex]; |
| 2238 | } |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2239 | } |
| 2240 | |
| 2241 | if (numChannels == 0) { |
| 2242 | return ERROR_UNSUPPORTED; |
| 2243 | } |
| 2244 | |
| 2245 | int32_t prevSampleRate; |
| 2246 | CHECK(mLastTrack->meta->findInt32(kKeySampleRate, &prevSampleRate)); |
| 2247 | |
| 2248 | if (prevSampleRate != sampleRate) { |
Steve Block | 3856b09 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 2249 | ALOGV("mpeg4 audio sample rate different from previous setting. " |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2250 | "was: %d, now: %d", prevSampleRate, sampleRate); |
| 2251 | } |
| 2252 | |
| 2253 | mLastTrack->meta->setInt32(kKeySampleRate, sampleRate); |
| 2254 | |
| 2255 | int32_t prevChannelCount; |
| 2256 | CHECK(mLastTrack->meta->findInt32(kKeyChannelCount, &prevChannelCount)); |
| 2257 | |
| 2258 | if (prevChannelCount != numChannels) { |
Steve Block | 3856b09 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 2259 | ALOGV("mpeg4 audio channel count different from previous setting. " |
Andreas Huber | ba7c7ee | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 2260 | "was: %d, now: %d", prevChannelCount, numChannels); |
| 2261 | } |
| 2262 | |
| 2263 | mLastTrack->meta->setInt32(kKeyChannelCount, numChannels); |
| 2264 | |
| 2265 | return OK; |
| 2266 | } |
| 2267 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2268 | //////////////////////////////////////////////////////////////////////////////// |
| 2269 | |
| 2270 | MPEG4Source::MPEG4Source( |
| 2271 | const sp<MetaData> &format, |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2272 | const sp<DataSource> &dataSource, |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 2273 | int32_t timeScale, |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2274 | const sp<SampleTable> &sampleTable, |
| 2275 | Vector<SidxEntry> &sidx, |
| 2276 | off64_t firstMoofOffset) |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2277 | : mFormat(format), |
| 2278 | mDataSource(dataSource), |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 2279 | mTimescale(timeScale), |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2280 | mSampleTable(sampleTable), |
| 2281 | mCurrentSampleIndex(0), |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2282 | mCurrentFragmentIndex(0), |
| 2283 | mSegments(sidx), |
| 2284 | mFirstMoofOffset(firstMoofOffset), |
| 2285 | mCurrentMoofOffset(firstMoofOffset), |
| 2286 | mCurrentTime(0), |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2287 | mCurrentSampleInfoAllocSize(0), |
| 2288 | mCurrentSampleInfoSizes(NULL), |
| 2289 | mCurrentSampleInfoOffsetsAllocSize(0), |
| 2290 | mCurrentSampleInfoOffsets(NULL), |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2291 | mIsAVC(false), |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2292 | mNALLengthSize(0), |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2293 | mStarted(false), |
| 2294 | mGroup(NULL), |
| 2295 | mBuffer(NULL), |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2296 | mWantsNALFragments(false), |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 2297 | mSrcBuffer(NULL) { |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2298 | |
| 2299 | mFormat->findInt32(kKeyCryptoMode, &mCryptoMode); |
| 2300 | mFormat->findInt32(kKeyCryptoDefaultIVSize, &mDefaultIVSize); |
| 2301 | uint32_t keytype; |
| 2302 | const void *key; |
| 2303 | size_t keysize; |
| 2304 | if (mFormat->findData(kKeyCryptoKey, &keytype, &key, &keysize)) { |
| 2305 | CHECK(keysize <= 16); |
| 2306 | memset(mCryptoKey, 0, 16); |
| 2307 | memcpy(mCryptoKey, key, keysize); |
| 2308 | } |
| 2309 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2310 | const char *mime; |
| 2311 | bool success = mFormat->findCString(kKeyMIMEType, &mime); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2312 | CHECK(success); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2313 | |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 2314 | mIsAVC = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC); |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2315 | |
| 2316 | if (mIsAVC) { |
| 2317 | uint32_t type; |
| 2318 | const void *data; |
| 2319 | size_t size; |
| 2320 | CHECK(format->findData(kKeyAVCC, &type, &data, &size)); |
| 2321 | |
| 2322 | const uint8_t *ptr = (const uint8_t *)data; |
| 2323 | |
| 2324 | CHECK(size >= 7); |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 2325 | CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1 |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2326 | |
| 2327 | // The number of bytes used to encode the length of a NAL unit. |
| 2328 | mNALLengthSize = 1 + (ptr[4] & 3); |
| 2329 | } |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2330 | |
| 2331 | CHECK(format->findInt32(kKeyTrackID, &mTrackId)); |
| 2332 | |
| 2333 | if (mFirstMoofOffset != 0) { |
| 2334 | off64_t offset = mFirstMoofOffset; |
| 2335 | parseChunk(&offset); |
| 2336 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2337 | } |
| 2338 | |
| 2339 | MPEG4Source::~MPEG4Source() { |
| 2340 | if (mStarted) { |
| 2341 | stop(); |
| 2342 | } |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2343 | free(mCurrentSampleInfoSizes); |
| 2344 | free(mCurrentSampleInfoOffsets); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2345 | } |
| 2346 | |
| 2347 | status_t MPEG4Source::start(MetaData *params) { |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2348 | Mutex::Autolock autoLock(mLock); |
| 2349 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2350 | CHECK(!mStarted); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2351 | |
| 2352 | int32_t val; |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2353 | if (params && params->findInt32(kKeyWantsNALFragments, &val) |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2354 | && val != 0) { |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2355 | mWantsNALFragments = true; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2356 | } else { |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2357 | mWantsNALFragments = false; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2358 | } |
| 2359 | |
| 2360 | mGroup = new MediaBufferGroup; |
| 2361 | |
Andreas Huber | 738c431 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 2362 | int32_t max_size; |
| 2363 | CHECK(mFormat->findInt32(kKeyMaxInputSize, &max_size)); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2364 | |
Andreas Huber | 738c431 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 2365 | mGroup->add_buffer(new MediaBuffer(max_size)); |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 2366 | |
| 2367 | mSrcBuffer = new uint8_t[max_size]; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2368 | |
| 2369 | mStarted = true; |
| 2370 | |
| 2371 | return OK; |
| 2372 | } |
| 2373 | |
| 2374 | status_t MPEG4Source::stop() { |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2375 | Mutex::Autolock autoLock(mLock); |
| 2376 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2377 | CHECK(mStarted); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2378 | |
| 2379 | if (mBuffer != NULL) { |
| 2380 | mBuffer->release(); |
| 2381 | mBuffer = NULL; |
| 2382 | } |
| 2383 | |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 2384 | delete[] mSrcBuffer; |
| 2385 | mSrcBuffer = NULL; |
| 2386 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2387 | delete mGroup; |
| 2388 | mGroup = NULL; |
| 2389 | |
| 2390 | mStarted = false; |
| 2391 | mCurrentSampleIndex = 0; |
| 2392 | |
| 2393 | return OK; |
| 2394 | } |
| 2395 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2396 | status_t MPEG4Source::parseChunk(off64_t *offset) { |
| 2397 | uint32_t hdr[2]; |
| 2398 | if (mDataSource->readAt(*offset, hdr, 8) < 8) { |
| 2399 | return ERROR_IO; |
| 2400 | } |
| 2401 | uint64_t chunk_size = ntohl(hdr[0]); |
| 2402 | uint32_t chunk_type = ntohl(hdr[1]); |
| 2403 | off64_t data_offset = *offset + 8; |
| 2404 | |
| 2405 | if (chunk_size == 1) { |
| 2406 | if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) { |
| 2407 | return ERROR_IO; |
| 2408 | } |
| 2409 | chunk_size = ntoh64(chunk_size); |
| 2410 | data_offset += 8; |
| 2411 | |
| 2412 | if (chunk_size < 16) { |
| 2413 | // The smallest valid chunk is 16 bytes long in this case. |
| 2414 | return ERROR_MALFORMED; |
| 2415 | } |
| 2416 | } else if (chunk_size < 8) { |
| 2417 | // The smallest valid chunk is 8 bytes long. |
| 2418 | return ERROR_MALFORMED; |
| 2419 | } |
| 2420 | |
| 2421 | char chunk[5]; |
| 2422 | MakeFourCCString(chunk_type, chunk); |
| 2423 | ALOGV("MPEG4Source chunk %s @ %llx", chunk, *offset); |
| 2424 | |
| 2425 | off64_t chunk_data_size = *offset + chunk_size - data_offset; |
| 2426 | |
| 2427 | switch(chunk_type) { |
| 2428 | |
| 2429 | case FOURCC('t', 'r', 'a', 'f'): |
| 2430 | case FOURCC('m', 'o', 'o', 'f'): { |
| 2431 | off64_t stop_offset = *offset + chunk_size; |
| 2432 | *offset = data_offset; |
| 2433 | while (*offset < stop_offset) { |
| 2434 | status_t err = parseChunk(offset); |
| 2435 | if (err != OK) { |
| 2436 | return err; |
| 2437 | } |
| 2438 | } |
| 2439 | if (chunk_type == FOURCC('m', 'o', 'o', 'f')) { |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2440 | // *offset points to the mdat box following this moof |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2441 | parseChunk(offset); // doesn't actually parse it, just updates offset |
| 2442 | mNextMoofOffset = *offset; |
| 2443 | } |
| 2444 | break; |
| 2445 | } |
| 2446 | |
| 2447 | case FOURCC('t', 'f', 'h', 'd'): { |
| 2448 | status_t err; |
| 2449 | if ((err = parseTrackFragmentHeader(data_offset, chunk_data_size)) != OK) { |
| 2450 | return err; |
| 2451 | } |
| 2452 | *offset += chunk_size; |
| 2453 | break; |
| 2454 | } |
| 2455 | |
| 2456 | case FOURCC('t', 'r', 'u', 'n'): { |
| 2457 | status_t err; |
| 2458 | if (mLastParsedTrackId == mTrackId) { |
| 2459 | if ((err = parseTrackFragmentRun(data_offset, chunk_data_size)) != OK) { |
| 2460 | return err; |
| 2461 | } |
| 2462 | } |
| 2463 | |
| 2464 | *offset += chunk_size; |
| 2465 | break; |
| 2466 | } |
| 2467 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2468 | case FOURCC('s', 'a', 'i', 'z'): { |
| 2469 | status_t err; |
| 2470 | if ((err = parseSampleAuxiliaryInformationSizes(data_offset, chunk_data_size)) != OK) { |
| 2471 | return err; |
| 2472 | } |
| 2473 | *offset += chunk_size; |
| 2474 | break; |
| 2475 | } |
| 2476 | case FOURCC('s', 'a', 'i', 'o'): { |
| 2477 | status_t err; |
| 2478 | if ((err = parseSampleAuxiliaryInformationOffsets(data_offset, chunk_data_size)) != OK) { |
| 2479 | return err; |
| 2480 | } |
| 2481 | *offset += chunk_size; |
| 2482 | break; |
| 2483 | } |
| 2484 | |
| 2485 | case FOURCC('m', 'd', 'a', 't'): { |
| 2486 | // parse DRM info if present |
| 2487 | ALOGV("MPEG4Source::parseChunk mdat"); |
| 2488 | // if saiz/saoi was previously observed, do something with the sampleinfos |
| 2489 | *offset += chunk_size; |
| 2490 | break; |
| 2491 | } |
| 2492 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2493 | default: { |
| 2494 | *offset += chunk_size; |
| 2495 | break; |
| 2496 | } |
| 2497 | } |
| 2498 | return OK; |
| 2499 | } |
| 2500 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2501 | status_t MPEG4Source::parseSampleAuxiliaryInformationSizes(off64_t offset, off64_t size) { |
| 2502 | ALOGV("parseSampleAuxiliaryInformationSizes"); |
| 2503 | // 14496-12 8.7.12 |
| 2504 | uint8_t version; |
| 2505 | if (mDataSource->readAt( |
| 2506 | offset, &version, sizeof(version)) |
| 2507 | < (ssize_t)sizeof(version)) { |
| 2508 | return ERROR_IO; |
| 2509 | } |
| 2510 | |
| 2511 | if (version != 0) { |
| 2512 | return ERROR_UNSUPPORTED; |
| 2513 | } |
| 2514 | offset++; |
| 2515 | |
| 2516 | uint32_t flags; |
| 2517 | if (!mDataSource->getUInt24(offset, &flags)) { |
| 2518 | return ERROR_IO; |
| 2519 | } |
| 2520 | offset += 3; |
| 2521 | |
| 2522 | if (flags & 1) { |
| 2523 | uint32_t tmp; |
| 2524 | if (!mDataSource->getUInt32(offset, &tmp)) { |
| 2525 | return ERROR_MALFORMED; |
| 2526 | } |
| 2527 | mCurrentAuxInfoType = tmp; |
| 2528 | offset += 4; |
| 2529 | if (!mDataSource->getUInt32(offset, &tmp)) { |
| 2530 | return ERROR_MALFORMED; |
| 2531 | } |
| 2532 | mCurrentAuxInfoTypeParameter = tmp; |
| 2533 | offset += 4; |
| 2534 | } |
| 2535 | |
| 2536 | uint8_t defsize; |
| 2537 | if (mDataSource->readAt(offset, &defsize, 1) != 1) { |
| 2538 | return ERROR_MALFORMED; |
| 2539 | } |
| 2540 | mCurrentDefaultSampleInfoSize = defsize; |
| 2541 | offset++; |
| 2542 | |
| 2543 | uint32_t smplcnt; |
| 2544 | if (!mDataSource->getUInt32(offset, &smplcnt)) { |
| 2545 | return ERROR_MALFORMED; |
| 2546 | } |
| 2547 | offset += 4; |
| 2548 | |
| 2549 | if (smplcnt > mCurrentSampleInfoAllocSize) { |
| 2550 | mCurrentSampleInfoSizes = (uint8_t*) realloc(mCurrentSampleInfoSizes, smplcnt); |
| 2551 | mCurrentSampleInfoAllocSize = smplcnt; |
| 2552 | } |
| 2553 | mCurrentSampleInfoCount = smplcnt; |
| 2554 | |
| 2555 | mDataSource->readAt(offset, mCurrentSampleInfoSizes, smplcnt); |
| 2556 | return OK; |
| 2557 | } |
| 2558 | |
| 2559 | status_t MPEG4Source::parseSampleAuxiliaryInformationOffsets(off64_t offset, off64_t size) { |
| 2560 | ALOGV("parseSampleAuxiliaryInformationOffsets"); |
| 2561 | // 14496-12 8.7.13 |
| 2562 | uint8_t version; |
| 2563 | if (mDataSource->readAt(offset, &version, sizeof(version)) != 1) { |
| 2564 | return ERROR_IO; |
| 2565 | } |
| 2566 | offset++; |
| 2567 | |
| 2568 | uint32_t flags; |
| 2569 | if (!mDataSource->getUInt24(offset, &flags)) { |
| 2570 | return ERROR_IO; |
| 2571 | } |
| 2572 | offset += 3; |
| 2573 | |
| 2574 | uint32_t entrycount; |
| 2575 | if (!mDataSource->getUInt32(offset, &entrycount)) { |
| 2576 | return ERROR_IO; |
| 2577 | } |
| 2578 | offset += 4; |
| 2579 | |
| 2580 | if (entrycount > mCurrentSampleInfoOffsetsAllocSize) { |
| 2581 | mCurrentSampleInfoOffsets = (uint64_t*) realloc(mCurrentSampleInfoOffsets, entrycount * 8); |
| 2582 | mCurrentSampleInfoOffsetsAllocSize = entrycount; |
| 2583 | } |
| 2584 | mCurrentSampleInfoOffsetCount = entrycount; |
| 2585 | |
| 2586 | for (size_t i = 0; i < entrycount; i++) { |
| 2587 | if (version == 0) { |
| 2588 | uint32_t tmp; |
| 2589 | if (!mDataSource->getUInt32(offset, &tmp)) { |
| 2590 | return ERROR_IO; |
| 2591 | } |
| 2592 | mCurrentSampleInfoOffsets[i] = tmp; |
| 2593 | offset += 4; |
| 2594 | } else { |
| 2595 | uint64_t tmp; |
| 2596 | if (!mDataSource->getUInt64(offset, &tmp)) { |
| 2597 | return ERROR_IO; |
| 2598 | } |
| 2599 | mCurrentSampleInfoOffsets[i] = tmp; |
| 2600 | offset += 8; |
| 2601 | } |
| 2602 | } |
| 2603 | |
| 2604 | // parse clear/encrypted data |
| 2605 | |
| 2606 | off64_t drmoffset = mCurrentSampleInfoOffsets[0]; // from moof |
| 2607 | |
| 2608 | drmoffset += mCurrentMoofOffset; |
| 2609 | int ivlength; |
| 2610 | CHECK(mFormat->findInt32(kKeyCryptoDefaultIVSize, &ivlength)); |
| 2611 | int foo = 1; |
| 2612 | for (size_t i = 0; i < mCurrentSampleInfoCount; i++) { |
| 2613 | Sample *smpl = &mCurrentSamples.editItemAt(i); |
| 2614 | |
| 2615 | memset(smpl->iv, 0, 16); |
| 2616 | if (mDataSource->readAt(drmoffset, smpl->iv, ivlength) != ivlength) { |
| 2617 | return ERROR_IO; |
| 2618 | } |
| 2619 | |
| 2620 | drmoffset += ivlength; |
| 2621 | |
| 2622 | uint16_t numsubsamples; |
| 2623 | if (!mDataSource->getUInt16(drmoffset, &numsubsamples)) { |
| 2624 | return ERROR_IO; |
| 2625 | } |
| 2626 | drmoffset += 2; |
| 2627 | for (size_t j = 0; j < numsubsamples; j++) { |
| 2628 | uint16_t numclear; |
| 2629 | uint32_t numencrypted; |
| 2630 | if (!mDataSource->getUInt16(drmoffset, &numclear)) { |
| 2631 | return ERROR_IO; |
| 2632 | } |
| 2633 | drmoffset += 2; |
| 2634 | if (!mDataSource->getUInt32(drmoffset, &numencrypted)) { |
| 2635 | return ERROR_IO; |
| 2636 | } |
| 2637 | drmoffset += 4; |
| 2638 | smpl->clearsizes.add(numclear); |
| 2639 | smpl->encryptedsizes.add(numencrypted); |
| 2640 | } |
| 2641 | } |
| 2642 | |
| 2643 | |
| 2644 | return OK; |
| 2645 | } |
| 2646 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2647 | status_t MPEG4Source::parseTrackFragmentHeader(off64_t offset, off64_t size) { |
| 2648 | |
| 2649 | if (size < 8) { |
| 2650 | return -EINVAL; |
| 2651 | } |
| 2652 | |
| 2653 | uint32_t flags; |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2654 | if (!mDataSource->getUInt32(offset, &flags)) { // actually version + flags |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2655 | return ERROR_MALFORMED; |
| 2656 | } |
| 2657 | |
| 2658 | if (flags & 0xff000000) { |
| 2659 | return -EINVAL; |
| 2660 | } |
| 2661 | |
| 2662 | if (!mDataSource->getUInt32(offset + 4, (uint32_t*)&mLastParsedTrackId)) { |
| 2663 | return ERROR_MALFORMED; |
| 2664 | } |
| 2665 | |
| 2666 | if (mLastParsedTrackId != mTrackId) { |
| 2667 | // this is not the right track, skip it |
| 2668 | return OK; |
| 2669 | } |
| 2670 | |
| 2671 | mTrackFragmentHeaderInfo.mFlags = flags; |
| 2672 | mTrackFragmentHeaderInfo.mTrackID = mLastParsedTrackId; |
| 2673 | offset += 8; |
| 2674 | size -= 8; |
| 2675 | |
| 2676 | ALOGV("fragment header: %08x %08x", flags, mTrackFragmentHeaderInfo.mTrackID); |
| 2677 | |
| 2678 | if (flags & TrackFragmentHeaderInfo::kBaseDataOffsetPresent) { |
| 2679 | if (size < 8) { |
| 2680 | return -EINVAL; |
| 2681 | } |
| 2682 | |
| 2683 | if (!mDataSource->getUInt64(offset, &mTrackFragmentHeaderInfo.mBaseDataOffset)) { |
| 2684 | return ERROR_MALFORMED; |
| 2685 | } |
| 2686 | offset += 8; |
| 2687 | size -= 8; |
| 2688 | } |
| 2689 | |
| 2690 | if (flags & TrackFragmentHeaderInfo::kSampleDescriptionIndexPresent) { |
| 2691 | if (size < 4) { |
| 2692 | return -EINVAL; |
| 2693 | } |
| 2694 | |
| 2695 | if (!mDataSource->getUInt32(offset, &mTrackFragmentHeaderInfo.mSampleDescriptionIndex)) { |
| 2696 | return ERROR_MALFORMED; |
| 2697 | } |
| 2698 | offset += 4; |
| 2699 | size -= 4; |
| 2700 | } |
| 2701 | |
| 2702 | if (flags & TrackFragmentHeaderInfo::kDefaultSampleDurationPresent) { |
| 2703 | if (size < 4) { |
| 2704 | return -EINVAL; |
| 2705 | } |
| 2706 | |
| 2707 | if (!mDataSource->getUInt32(offset, &mTrackFragmentHeaderInfo.mDefaultSampleDuration)) { |
| 2708 | return ERROR_MALFORMED; |
| 2709 | } |
| 2710 | offset += 4; |
| 2711 | size -= 4; |
| 2712 | } |
| 2713 | |
| 2714 | if (flags & TrackFragmentHeaderInfo::kDefaultSampleSizePresent) { |
| 2715 | if (size < 4) { |
| 2716 | return -EINVAL; |
| 2717 | } |
| 2718 | |
| 2719 | if (!mDataSource->getUInt32(offset, &mTrackFragmentHeaderInfo.mDefaultSampleSize)) { |
| 2720 | return ERROR_MALFORMED; |
| 2721 | } |
| 2722 | offset += 4; |
| 2723 | size -= 4; |
| 2724 | } |
| 2725 | |
| 2726 | if (flags & TrackFragmentHeaderInfo::kDefaultSampleFlagsPresent) { |
| 2727 | if (size < 4) { |
| 2728 | return -EINVAL; |
| 2729 | } |
| 2730 | |
| 2731 | if (!mDataSource->getUInt32(offset, &mTrackFragmentHeaderInfo.mDefaultSampleFlags)) { |
| 2732 | return ERROR_MALFORMED; |
| 2733 | } |
| 2734 | offset += 4; |
| 2735 | size -= 4; |
| 2736 | } |
| 2737 | |
| 2738 | if (!(flags & TrackFragmentHeaderInfo::kBaseDataOffsetPresent)) { |
| 2739 | mTrackFragmentHeaderInfo.mBaseDataOffset = mCurrentMoofOffset; |
| 2740 | } |
| 2741 | |
| 2742 | mTrackFragmentHeaderInfo.mDataOffset = 0; |
| 2743 | return OK; |
| 2744 | } |
| 2745 | |
| 2746 | status_t MPEG4Source::parseTrackFragmentRun(off64_t offset, off64_t size) { |
| 2747 | |
| 2748 | ALOGV("MPEG4Extractor::parseTrackFragmentRun"); |
| 2749 | if (size < 8) { |
| 2750 | return -EINVAL; |
| 2751 | } |
| 2752 | |
| 2753 | enum { |
| 2754 | kDataOffsetPresent = 0x01, |
| 2755 | kFirstSampleFlagsPresent = 0x04, |
| 2756 | kSampleDurationPresent = 0x100, |
| 2757 | kSampleSizePresent = 0x200, |
| 2758 | kSampleFlagsPresent = 0x400, |
| 2759 | kSampleCompositionTimeOffsetPresent = 0x800, |
| 2760 | }; |
| 2761 | |
| 2762 | uint32_t flags; |
| 2763 | if (!mDataSource->getUInt32(offset, &flags)) { |
| 2764 | return ERROR_MALFORMED; |
| 2765 | } |
| 2766 | ALOGV("fragment run flags: %08x", flags); |
| 2767 | |
| 2768 | if (flags & 0xff000000) { |
| 2769 | return -EINVAL; |
| 2770 | } |
| 2771 | |
| 2772 | if ((flags & kFirstSampleFlagsPresent) && (flags & kSampleFlagsPresent)) { |
| 2773 | // These two shall not be used together. |
| 2774 | return -EINVAL; |
| 2775 | } |
| 2776 | |
| 2777 | uint32_t sampleCount; |
| 2778 | if (!mDataSource->getUInt32(offset + 4, &sampleCount)) { |
| 2779 | return ERROR_MALFORMED; |
| 2780 | } |
| 2781 | offset += 8; |
| 2782 | size -= 8; |
| 2783 | |
| 2784 | uint64_t dataOffset = mTrackFragmentHeaderInfo.mDataOffset; |
| 2785 | |
| 2786 | uint32_t firstSampleFlags = 0; |
| 2787 | |
| 2788 | if (flags & kDataOffsetPresent) { |
| 2789 | if (size < 4) { |
| 2790 | return -EINVAL; |
| 2791 | } |
| 2792 | |
| 2793 | int32_t dataOffsetDelta; |
| 2794 | if (!mDataSource->getUInt32(offset, (uint32_t*)&dataOffsetDelta)) { |
| 2795 | return ERROR_MALFORMED; |
| 2796 | } |
| 2797 | |
| 2798 | dataOffset = mTrackFragmentHeaderInfo.mBaseDataOffset + dataOffsetDelta; |
| 2799 | |
| 2800 | offset += 4; |
| 2801 | size -= 4; |
| 2802 | } |
| 2803 | |
| 2804 | if (flags & kFirstSampleFlagsPresent) { |
| 2805 | if (size < 4) { |
| 2806 | return -EINVAL; |
| 2807 | } |
| 2808 | |
| 2809 | if (!mDataSource->getUInt32(offset, &firstSampleFlags)) { |
| 2810 | return ERROR_MALFORMED; |
| 2811 | } |
| 2812 | offset += 4; |
| 2813 | size -= 4; |
| 2814 | } |
| 2815 | |
| 2816 | uint32_t sampleDuration = 0, sampleSize = 0, sampleFlags = 0, |
| 2817 | sampleCtsOffset = 0; |
| 2818 | |
| 2819 | size_t bytesPerSample = 0; |
| 2820 | if (flags & kSampleDurationPresent) { |
| 2821 | bytesPerSample += 4; |
| 2822 | } else if (mTrackFragmentHeaderInfo.mFlags |
| 2823 | & TrackFragmentHeaderInfo::kDefaultSampleDurationPresent) { |
| 2824 | sampleDuration = mTrackFragmentHeaderInfo.mDefaultSampleDuration; |
| 2825 | } else { |
| 2826 | sampleDuration = mTrackFragmentHeaderInfo.mDefaultSampleDuration; |
| 2827 | } |
| 2828 | |
| 2829 | if (flags & kSampleSizePresent) { |
| 2830 | bytesPerSample += 4; |
| 2831 | } else if (mTrackFragmentHeaderInfo.mFlags |
| 2832 | & TrackFragmentHeaderInfo::kDefaultSampleSizePresent) { |
| 2833 | sampleSize = mTrackFragmentHeaderInfo.mDefaultSampleSize; |
| 2834 | } else { |
| 2835 | sampleSize = mTrackFragmentHeaderInfo.mDefaultSampleSize; |
| 2836 | } |
| 2837 | |
| 2838 | if (flags & kSampleFlagsPresent) { |
| 2839 | bytesPerSample += 4; |
| 2840 | } else if (mTrackFragmentHeaderInfo.mFlags |
| 2841 | & TrackFragmentHeaderInfo::kDefaultSampleFlagsPresent) { |
| 2842 | sampleFlags = mTrackFragmentHeaderInfo.mDefaultSampleFlags; |
| 2843 | } else { |
| 2844 | sampleFlags = mTrackFragmentHeaderInfo.mDefaultSampleFlags; |
| 2845 | } |
| 2846 | |
| 2847 | if (flags & kSampleCompositionTimeOffsetPresent) { |
| 2848 | bytesPerSample += 4; |
| 2849 | } else { |
| 2850 | sampleCtsOffset = 0; |
| 2851 | } |
| 2852 | |
| 2853 | if (size < sampleCount * bytesPerSample) { |
| 2854 | return -EINVAL; |
| 2855 | } |
| 2856 | |
| 2857 | Sample tmp; |
| 2858 | for (uint32_t i = 0; i < sampleCount; ++i) { |
| 2859 | if (flags & kSampleDurationPresent) { |
| 2860 | if (!mDataSource->getUInt32(offset, &sampleDuration)) { |
| 2861 | return ERROR_MALFORMED; |
| 2862 | } |
| 2863 | offset += 4; |
| 2864 | } |
| 2865 | |
| 2866 | if (flags & kSampleSizePresent) { |
| 2867 | if (!mDataSource->getUInt32(offset, &sampleSize)) { |
| 2868 | return ERROR_MALFORMED; |
| 2869 | } |
| 2870 | offset += 4; |
| 2871 | } |
| 2872 | |
| 2873 | if (flags & kSampleFlagsPresent) { |
| 2874 | if (!mDataSource->getUInt32(offset, &sampleFlags)) { |
| 2875 | return ERROR_MALFORMED; |
| 2876 | } |
| 2877 | offset += 4; |
| 2878 | } |
| 2879 | |
| 2880 | if (flags & kSampleCompositionTimeOffsetPresent) { |
| 2881 | if (!mDataSource->getUInt32(offset, &sampleCtsOffset)) { |
| 2882 | return ERROR_MALFORMED; |
| 2883 | } |
| 2884 | offset += 4; |
| 2885 | } |
| 2886 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 2887 | ALOGV("adding sample %d at offset 0x%08llx, size %u, duration %u, " |
| 2888 | " flags 0x%08x", i + 1, |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2889 | dataOffset, sampleSize, sampleDuration, |
| 2890 | (flags & kFirstSampleFlagsPresent) && i == 0 |
| 2891 | ? firstSampleFlags : sampleFlags); |
| 2892 | tmp.offset = dataOffset; |
| 2893 | tmp.size = sampleSize; |
| 2894 | tmp.duration = sampleDuration; |
| 2895 | mCurrentSamples.add(tmp); |
| 2896 | |
| 2897 | dataOffset += sampleSize; |
| 2898 | } |
| 2899 | |
| 2900 | mTrackFragmentHeaderInfo.mDataOffset = dataOffset; |
| 2901 | |
| 2902 | return OK; |
| 2903 | } |
| 2904 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2905 | sp<MetaData> MPEG4Source::getFormat() { |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2906 | Mutex::Autolock autoLock(mLock); |
| 2907 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2908 | return mFormat; |
| 2909 | } |
| 2910 | |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2911 | size_t MPEG4Source::parseNALSize(const uint8_t *data) const { |
| 2912 | switch (mNALLengthSize) { |
| 2913 | case 1: |
| 2914 | return *data; |
| 2915 | case 2: |
| 2916 | return U16_AT(data); |
| 2917 | case 3: |
| 2918 | return ((size_t)data[0] << 16) | U16_AT(&data[1]); |
| 2919 | case 4: |
| 2920 | return U32_AT(data); |
| 2921 | } |
| 2922 | |
| 2923 | // This cannot happen, mNALLengthSize springs to life by adding 1 to |
| 2924 | // a 2-bit integer. |
| 2925 | CHECK(!"Should not be here."); |
| 2926 | |
| 2927 | return 0; |
| 2928 | } |
| 2929 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2930 | status_t MPEG4Source::read( |
| 2931 | MediaBuffer **out, const ReadOptions *options) { |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2932 | Mutex::Autolock autoLock(mLock); |
| 2933 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2934 | CHECK(mStarted); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2935 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2936 | if (mFirstMoofOffset > 0) { |
| 2937 | return fragmentedRead(out, options); |
| 2938 | } |
| 2939 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2940 | *out = NULL; |
| 2941 | |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 2942 | int64_t targetSampleTimeUs = -1; |
| 2943 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2944 | int64_t seekTimeUs; |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 2945 | ReadOptions::SeekMode mode; |
| 2946 | if (options && options->getSeekTo(&seekTimeUs, &mode)) { |
| 2947 | uint32_t findFlags = 0; |
| 2948 | switch (mode) { |
| 2949 | case ReadOptions::SEEK_PREVIOUS_SYNC: |
| 2950 | findFlags = SampleTable::kFlagBefore; |
| 2951 | break; |
| 2952 | case ReadOptions::SEEK_NEXT_SYNC: |
| 2953 | findFlags = SampleTable::kFlagAfter; |
| 2954 | break; |
| 2955 | case ReadOptions::SEEK_CLOSEST_SYNC: |
| 2956 | case ReadOptions::SEEK_CLOSEST: |
| 2957 | findFlags = SampleTable::kFlagClosest; |
| 2958 | break; |
| 2959 | default: |
| 2960 | CHECK(!"Should not be here."); |
| 2961 | break; |
| 2962 | } |
| 2963 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2964 | uint32_t sampleIndex; |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 2965 | status_t err = mSampleTable->findSampleAtTime( |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2966 | seekTimeUs * mTimescale / 1000000, |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 2967 | &sampleIndex, findFlags); |
| 2968 | |
| 2969 | if (mode == ReadOptions::SEEK_CLOSEST) { |
| 2970 | // We found the closest sample already, now we want the sync |
| 2971 | // sample preceding it (or the sample itself of course), even |
| 2972 | // if the subsequent sync sample is closer. |
| 2973 | findFlags = SampleTable::kFlagBefore; |
| 2974 | } |
| 2975 | |
| 2976 | uint32_t syncSampleIndex; |
| 2977 | if (err == OK) { |
| 2978 | err = mSampleTable->findSyncSampleNear( |
| 2979 | sampleIndex, &syncSampleIndex, findFlags); |
| 2980 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2981 | |
Andreas Huber | 788a07f | 2011-10-06 09:07:12 -0700 | [diff] [blame] | 2982 | uint32_t sampleTime; |
| 2983 | if (err == OK) { |
| 2984 | err = mSampleTable->getMetaDataForSample( |
| 2985 | sampleIndex, NULL, NULL, &sampleTime); |
| 2986 | } |
| 2987 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2988 | if (err != OK) { |
Andreas Huber | 5295c0c | 2010-02-23 13:45:33 -0800 | [diff] [blame] | 2989 | if (err == ERROR_OUT_OF_RANGE) { |
| 2990 | // An attempt to seek past the end of the stream would |
| 2991 | // normally cause this ERROR_OUT_OF_RANGE error. Propagating |
| 2992 | // this all the way to the MediaPlayer would cause abnormal |
| 2993 | // termination. Legacy behaviour appears to be to behave as if |
| 2994 | // we had seeked to the end of stream, ending normally. |
| 2995 | err = ERROR_END_OF_STREAM; |
| 2996 | } |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 2997 | ALOGV("end of stream"); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2998 | return err; |
| 2999 | } |
| 3000 | |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 3001 | if (mode == ReadOptions::SEEK_CLOSEST) { |
| 3002 | targetSampleTimeUs = (sampleTime * 1000000ll) / mTimescale; |
| 3003 | } |
| 3004 | |
| 3005 | #if 0 |
| 3006 | uint32_t syncSampleTime; |
| 3007 | CHECK_EQ(OK, mSampleTable->getMetaDataForSample( |
| 3008 | syncSampleIndex, NULL, NULL, &syncSampleTime)); |
| 3009 | |
Steve Block | df64d15 | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 3010 | ALOGI("seek to time %lld us => sample at time %lld us, " |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 3011 | "sync sample at time %lld us", |
| 3012 | seekTimeUs, |
| 3013 | sampleTime * 1000000ll / mTimescale, |
| 3014 | syncSampleTime * 1000000ll / mTimescale); |
| 3015 | #endif |
| 3016 | |
| 3017 | mCurrentSampleIndex = syncSampleIndex; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3018 | if (mBuffer != NULL) { |
| 3019 | mBuffer->release(); |
| 3020 | mBuffer = NULL; |
| 3021 | } |
| 3022 | |
| 3023 | // fall through |
| 3024 | } |
| 3025 | |
James Dong | c7fc37a | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 3026 | off64_t offset; |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 3027 | size_t size; |
Andreas Huber | 4678a6d | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 3028 | uint32_t cts; |
Andreas Huber | 8bf59e7 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 3029 | bool isSyncSample; |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3030 | bool newBuffer = false; |
| 3031 | if (mBuffer == NULL) { |
| 3032 | newBuffer = true; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3033 | |
Andreas Huber | c57b679 | 2010-01-19 10:39:21 -0800 | [diff] [blame] | 3034 | status_t err = |
| 3035 | mSampleTable->getMetaDataForSample( |
Andreas Huber | 4678a6d | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 3036 | mCurrentSampleIndex, &offset, &size, &cts, &isSyncSample); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3037 | |
| 3038 | if (err != OK) { |
| 3039 | return err; |
| 3040 | } |
| 3041 | |
| 3042 | err = mGroup->acquire_buffer(&mBuffer); |
Andreas Huber | c57b679 | 2010-01-19 10:39:21 -0800 | [diff] [blame] | 3043 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3044 | if (err != OK) { |
Andreas Huber | ba529e4 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 3045 | CHECK(mBuffer == NULL); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3046 | return err; |
| 3047 | } |
Andreas Huber | 0024245 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 3048 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3049 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3050 | if (!mIsAVC || mWantsNALFragments) { |
| 3051 | if (newBuffer) { |
| 3052 | ssize_t num_bytes_read = |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 3053 | mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3054 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3055 | if (num_bytes_read < (ssize_t)size) { |
| 3056 | mBuffer->release(); |
| 3057 | mBuffer = NULL; |
| 3058 | |
| 3059 | return ERROR_IO; |
| 3060 | } |
| 3061 | |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 3062 | CHECK(mBuffer != NULL); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3063 | mBuffer->set_range(0, size); |
| 3064 | mBuffer->meta_data()->clear(); |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 3065 | mBuffer->meta_data()->setInt64( |
Andreas Huber | 4678a6d | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 3066 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 3067 | |
| 3068 | if (targetSampleTimeUs >= 0) { |
| 3069 | mBuffer->meta_data()->setInt64( |
| 3070 | kKeyTargetTime, targetSampleTimeUs); |
| 3071 | } |
| 3072 | |
Andreas Huber | 8bf59e7 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 3073 | if (isSyncSample) { |
| 3074 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 3075 | } |
| 3076 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3077 | ++mCurrentSampleIndex; |
| 3078 | } |
| 3079 | |
| 3080 | if (!mIsAVC) { |
| 3081 | *out = mBuffer; |
| 3082 | mBuffer = NULL; |
| 3083 | |
| 3084 | return OK; |
| 3085 | } |
| 3086 | |
| 3087 | // Each NAL unit is split up into its constituent fragments and |
| 3088 | // each one of them returned in its own buffer. |
| 3089 | |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 3090 | CHECK(mBuffer->range_length() >= mNALLengthSize); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3091 | |
| 3092 | const uint8_t *src = |
| 3093 | (const uint8_t *)mBuffer->data() + mBuffer->range_offset(); |
| 3094 | |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 3095 | size_t nal_size = parseNALSize(src); |
Andreas Huber | e8a0849 | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 3096 | if (mBuffer->range_length() < mNALLengthSize + nal_size) { |
Steve Block | 29357bc | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 3097 | ALOGE("incomplete NAL unit."); |
Andreas Huber | e8a0849 | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 3098 | |
| 3099 | mBuffer->release(); |
| 3100 | mBuffer = NULL; |
| 3101 | |
| 3102 | return ERROR_MALFORMED; |
| 3103 | } |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3104 | |
| 3105 | MediaBuffer *clone = mBuffer->clone(); |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 3106 | CHECK(clone != NULL); |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 3107 | clone->set_range(mBuffer->range_offset() + mNALLengthSize, nal_size); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3108 | |
Andreas Huber | 7b3396a | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 3109 | CHECK(mBuffer != NULL); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3110 | mBuffer->set_range( |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 3111 | mBuffer->range_offset() + mNALLengthSize + nal_size, |
| 3112 | mBuffer->range_length() - mNALLengthSize - nal_size); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3113 | |
| 3114 | if (mBuffer->range_length() == 0) { |
| 3115 | mBuffer->release(); |
| 3116 | mBuffer = NULL; |
| 3117 | } |
| 3118 | |
| 3119 | *out = clone; |
| 3120 | |
| 3121 | return OK; |
| 3122 | } else { |
| 3123 | // Whole NAL units are returned but each fragment is prefixed by |
| 3124 | // the start code (0x00 00 00 01). |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3125 | ssize_t num_bytes_read = 0; |
| 3126 | int32_t drm = 0; |
| 3127 | bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0); |
| 3128 | if (usesDRM) { |
| 3129 | num_bytes_read = |
| 3130 | mDataSource->readAt(offset, (uint8_t*)mBuffer->data(), size); |
| 3131 | } else { |
| 3132 | num_bytes_read = mDataSource->readAt(offset, mSrcBuffer, size); |
| 3133 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3134 | |
| 3135 | if (num_bytes_read < (ssize_t)size) { |
| 3136 | mBuffer->release(); |
| 3137 | mBuffer = NULL; |
| 3138 | |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3139 | return ERROR_IO; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3140 | } |
| 3141 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3142 | if (usesDRM) { |
| 3143 | CHECK(mBuffer != NULL); |
| 3144 | mBuffer->set_range(0, size); |
Andreas Huber | 6064017 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 3145 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3146 | } else { |
| 3147 | uint8_t *dstData = (uint8_t *)mBuffer->data(); |
| 3148 | size_t srcOffset = 0; |
| 3149 | size_t dstOffset = 0; |
Andreas Huber | e8a0849 | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 3150 | |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3151 | while (srcOffset < size) { |
James Dong | 34fe252 | 2011-04-22 13:21:03 -0700 | [diff] [blame] | 3152 | bool isMalFormed = (srcOffset + mNALLengthSize > size); |
| 3153 | size_t nalLength = 0; |
| 3154 | if (!isMalFormed) { |
| 3155 | nalLength = parseNALSize(&mSrcBuffer[srcOffset]); |
| 3156 | srcOffset += mNALLengthSize; |
| 3157 | isMalFormed = srcOffset + nalLength > size; |
| 3158 | } |
Andreas Huber | e8a0849 | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 3159 | |
James Dong | 34fe252 | 2011-04-22 13:21:03 -0700 | [diff] [blame] | 3160 | if (isMalFormed) { |
Steve Block | 29357bc | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 3161 | ALOGE("Video is malformed"); |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3162 | mBuffer->release(); |
| 3163 | mBuffer = NULL; |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3164 | return ERROR_MALFORMED; |
| 3165 | } |
| 3166 | |
| 3167 | if (nalLength == 0) { |
| 3168 | continue; |
| 3169 | } |
| 3170 | |
| 3171 | CHECK(dstOffset + 4 <= mBuffer->size()); |
| 3172 | |
| 3173 | dstData[dstOffset++] = 0; |
| 3174 | dstData[dstOffset++] = 0; |
| 3175 | dstData[dstOffset++] = 0; |
| 3176 | dstData[dstOffset++] = 1; |
| 3177 | memcpy(&dstData[dstOffset], &mSrcBuffer[srcOffset], nalLength); |
| 3178 | srcOffset += nalLength; |
| 3179 | dstOffset += nalLength; |
Andreas Huber | e8a0849 | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 3180 | } |
Gloria Wang | dcd25ef | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 3181 | CHECK_EQ(srcOffset, size); |
| 3182 | CHECK(mBuffer != NULL); |
| 3183 | mBuffer->set_range(0, dstOffset); |
Andreas Huber | dbc0344 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 3184 | } |
| 3185 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3186 | mBuffer->meta_data()->clear(); |
Andreas Huber | 48c948b | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 3187 | mBuffer->meta_data()->setInt64( |
Andreas Huber | 4678a6d | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 3188 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
Andreas Huber | abd1f4f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 3189 | |
| 3190 | if (targetSampleTimeUs >= 0) { |
| 3191 | mBuffer->meta_data()->setInt64( |
| 3192 | kKeyTargetTime, targetSampleTimeUs); |
| 3193 | } |
| 3194 | |
Andreas Huber | 8bf59e7 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 3195 | if (isSyncSample) { |
| 3196 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 3197 | } |
| 3198 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3199 | ++mCurrentSampleIndex; |
| 3200 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3201 | *out = mBuffer; |
| 3202 | mBuffer = NULL; |
| 3203 | |
| 3204 | return OK; |
| 3205 | } |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3206 | } |
| 3207 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 3208 | status_t MPEG4Source::fragmentedRead( |
| 3209 | MediaBuffer **out, const ReadOptions *options) { |
| 3210 | |
| 3211 | ALOGV("MPEG4Source::fragmentedRead"); |
| 3212 | |
| 3213 | CHECK(mStarted); |
| 3214 | |
| 3215 | *out = NULL; |
| 3216 | |
| 3217 | int64_t targetSampleTimeUs = -1; |
| 3218 | |
| 3219 | int64_t seekTimeUs; |
| 3220 | ReadOptions::SeekMode mode; |
| 3221 | if (options && options->getSeekTo(&seekTimeUs, &mode)) { |
| 3222 | |
| 3223 | int numSidxEntries = mSegments.size(); |
| 3224 | if (numSidxEntries != 0) { |
| 3225 | int64_t totalTime = 0; |
| 3226 | off64_t totalOffset = mFirstMoofOffset; |
| 3227 | for (int i = 0; i < numSidxEntries; i++) { |
| 3228 | const SidxEntry *se = &mSegments[i]; |
| 3229 | if (totalTime + se->mDurationUs > seekTimeUs) { |
| 3230 | // The requested time is somewhere in this segment |
| 3231 | if ((mode == ReadOptions::SEEK_NEXT_SYNC) || |
| 3232 | (mode == ReadOptions::SEEK_CLOSEST_SYNC && |
| 3233 | (seekTimeUs - totalTime) > (totalTime + se->mDurationUs - seekTimeUs))) { |
| 3234 | // requested next sync, or closest sync and it was closer to the end of |
| 3235 | // this segment |
| 3236 | totalTime += se->mDurationUs; |
| 3237 | totalOffset += se->mSize; |
| 3238 | } |
| 3239 | break; |
| 3240 | } |
| 3241 | totalTime += se->mDurationUs; |
| 3242 | totalOffset += se->mSize; |
| 3243 | } |
| 3244 | mCurrentMoofOffset = totalOffset; |
| 3245 | mCurrentSamples.clear(); |
| 3246 | mCurrentSampleIndex = 0; |
| 3247 | parseChunk(&totalOffset); |
| 3248 | mCurrentTime = totalTime * mTimescale / 1000000ll; |
| 3249 | } |
| 3250 | |
| 3251 | if (mBuffer != NULL) { |
| 3252 | mBuffer->release(); |
| 3253 | mBuffer = NULL; |
| 3254 | } |
| 3255 | |
| 3256 | // fall through |
| 3257 | } |
| 3258 | |
| 3259 | off64_t offset = 0; |
| 3260 | size_t size; |
| 3261 | uint32_t cts = 0; |
| 3262 | bool isSyncSample = false; |
| 3263 | bool newBuffer = false; |
| 3264 | if (mBuffer == NULL) { |
| 3265 | newBuffer = true; |
| 3266 | |
| 3267 | if (mCurrentSampleIndex >= mCurrentSamples.size()) { |
| 3268 | // move to next fragment |
| 3269 | Sample lastSample = mCurrentSamples[mCurrentSamples.size() - 1]; |
| 3270 | off64_t nextMoof = mNextMoofOffset; // lastSample.offset + lastSample.size; |
| 3271 | mCurrentMoofOffset = nextMoof; |
| 3272 | mCurrentSamples.clear(); |
| 3273 | mCurrentSampleIndex = 0; |
| 3274 | parseChunk(&nextMoof); |
| 3275 | if (mCurrentSampleIndex >= mCurrentSamples.size()) { |
| 3276 | return ERROR_END_OF_STREAM; |
| 3277 | } |
| 3278 | } |
| 3279 | |
| 3280 | const Sample *smpl = &mCurrentSamples[mCurrentSampleIndex]; |
| 3281 | offset = smpl->offset; |
| 3282 | size = smpl->size; |
| 3283 | cts = mCurrentTime; |
| 3284 | mCurrentTime += smpl->duration; |
| 3285 | isSyncSample = (mCurrentSampleIndex == 0); // XXX |
| 3286 | |
| 3287 | status_t err = mGroup->acquire_buffer(&mBuffer); |
| 3288 | |
| 3289 | if (err != OK) { |
| 3290 | CHECK(mBuffer == NULL); |
| 3291 | ALOGV("acquire_buffer returned %d", err); |
| 3292 | return err; |
| 3293 | } |
| 3294 | } |
| 3295 | |
| 3296 | if (!mIsAVC || mWantsNALFragments) { |
| 3297 | if (newBuffer) { |
| 3298 | ssize_t num_bytes_read = |
| 3299 | mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size); |
| 3300 | |
| 3301 | if (num_bytes_read < (ssize_t)size) { |
| 3302 | mBuffer->release(); |
| 3303 | mBuffer = NULL; |
| 3304 | |
| 3305 | ALOGV("i/o error"); |
| 3306 | return ERROR_IO; |
| 3307 | } |
| 3308 | |
| 3309 | CHECK(mBuffer != NULL); |
| 3310 | mBuffer->set_range(0, size); |
| 3311 | mBuffer->meta_data()->clear(); |
| 3312 | mBuffer->meta_data()->setInt64( |
| 3313 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
| 3314 | |
| 3315 | if (targetSampleTimeUs >= 0) { |
| 3316 | mBuffer->meta_data()->setInt64( |
| 3317 | kKeyTargetTime, targetSampleTimeUs); |
| 3318 | } |
| 3319 | |
| 3320 | if (isSyncSample) { |
| 3321 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 3322 | } |
| 3323 | |
| 3324 | ++mCurrentSampleIndex; |
| 3325 | } |
| 3326 | |
| 3327 | if (!mIsAVC) { |
| 3328 | *out = mBuffer; |
| 3329 | mBuffer = NULL; |
| 3330 | |
| 3331 | return OK; |
| 3332 | } |
| 3333 | |
| 3334 | // Each NAL unit is split up into its constituent fragments and |
| 3335 | // each one of them returned in its own buffer. |
| 3336 | |
| 3337 | CHECK(mBuffer->range_length() >= mNALLengthSize); |
| 3338 | |
| 3339 | const uint8_t *src = |
| 3340 | (const uint8_t *)mBuffer->data() + mBuffer->range_offset(); |
| 3341 | |
| 3342 | size_t nal_size = parseNALSize(src); |
| 3343 | if (mBuffer->range_length() < mNALLengthSize + nal_size) { |
| 3344 | ALOGE("incomplete NAL unit."); |
| 3345 | |
| 3346 | mBuffer->release(); |
| 3347 | mBuffer = NULL; |
| 3348 | |
| 3349 | return ERROR_MALFORMED; |
| 3350 | } |
| 3351 | |
| 3352 | MediaBuffer *clone = mBuffer->clone(); |
| 3353 | CHECK(clone != NULL); |
| 3354 | clone->set_range(mBuffer->range_offset() + mNALLengthSize, nal_size); |
| 3355 | |
| 3356 | CHECK(mBuffer != NULL); |
| 3357 | mBuffer->set_range( |
| 3358 | mBuffer->range_offset() + mNALLengthSize + nal_size, |
| 3359 | mBuffer->range_length() - mNALLengthSize - nal_size); |
| 3360 | |
| 3361 | if (mBuffer->range_length() == 0) { |
| 3362 | mBuffer->release(); |
| 3363 | mBuffer = NULL; |
| 3364 | } |
| 3365 | |
| 3366 | *out = clone; |
| 3367 | |
| 3368 | return OK; |
| 3369 | } else { |
| 3370 | ALOGV("whole NAL"); |
| 3371 | // Whole NAL units are returned but each fragment is prefixed by |
| 3372 | // the start code (0x00 00 00 01). |
| 3373 | ssize_t num_bytes_read = 0; |
| 3374 | int32_t drm = 0; |
| 3375 | bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0); |
| 3376 | if (usesDRM) { |
| 3377 | num_bytes_read = |
| 3378 | mDataSource->readAt(offset, (uint8_t*)mBuffer->data(), size); |
| 3379 | } else { |
| 3380 | num_bytes_read = mDataSource->readAt(offset, mSrcBuffer, size); |
| 3381 | } |
| 3382 | |
| 3383 | if (num_bytes_read < (ssize_t)size) { |
| 3384 | mBuffer->release(); |
| 3385 | mBuffer = NULL; |
| 3386 | |
| 3387 | ALOGV("i/o error"); |
| 3388 | return ERROR_IO; |
| 3389 | } |
| 3390 | |
| 3391 | if (usesDRM) { |
| 3392 | CHECK(mBuffer != NULL); |
| 3393 | mBuffer->set_range(0, size); |
| 3394 | |
| 3395 | } else { |
| 3396 | uint8_t *dstData = (uint8_t *)mBuffer->data(); |
| 3397 | size_t srcOffset = 0; |
| 3398 | size_t dstOffset = 0; |
| 3399 | |
| 3400 | while (srcOffset < size) { |
| 3401 | bool isMalFormed = (srcOffset + mNALLengthSize > size); |
| 3402 | size_t nalLength = 0; |
| 3403 | if (!isMalFormed) { |
| 3404 | nalLength = parseNALSize(&mSrcBuffer[srcOffset]); |
| 3405 | srcOffset += mNALLengthSize; |
| 3406 | isMalFormed = srcOffset + nalLength > size; |
| 3407 | } |
| 3408 | |
| 3409 | if (isMalFormed) { |
| 3410 | ALOGE("Video is malformed"); |
| 3411 | mBuffer->release(); |
| 3412 | mBuffer = NULL; |
| 3413 | return ERROR_MALFORMED; |
| 3414 | } |
| 3415 | |
| 3416 | if (nalLength == 0) { |
| 3417 | continue; |
| 3418 | } |
| 3419 | |
| 3420 | CHECK(dstOffset + 4 <= mBuffer->size()); |
| 3421 | |
| 3422 | dstData[dstOffset++] = 0; |
| 3423 | dstData[dstOffset++] = 0; |
| 3424 | dstData[dstOffset++] = 0; |
| 3425 | dstData[dstOffset++] = 1; |
| 3426 | memcpy(&dstData[dstOffset], &mSrcBuffer[srcOffset], nalLength); |
| 3427 | srcOffset += nalLength; |
| 3428 | dstOffset += nalLength; |
| 3429 | } |
| 3430 | CHECK_EQ(srcOffset, size); |
| 3431 | CHECK(mBuffer != NULL); |
| 3432 | mBuffer->set_range(0, dstOffset); |
| 3433 | } |
| 3434 | |
| 3435 | mBuffer->meta_data()->clear(); |
| 3436 | mBuffer->meta_data()->setInt64( |
| 3437 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
| 3438 | |
| 3439 | if (targetSampleTimeUs >= 0) { |
| 3440 | mBuffer->meta_data()->setInt64( |
| 3441 | kKeyTargetTime, targetSampleTimeUs); |
| 3442 | } |
| 3443 | |
| 3444 | if (isSyncSample) { |
| 3445 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 3446 | } |
| 3447 | |
Marco Nelissen | 5544c66 | 2013-04-08 14:30:57 -0700 | [diff] [blame] | 3448 | const Sample *smpl = &mCurrentSamples[mCurrentSampleIndex]; |
| 3449 | if (smpl->encryptedsizes.size()) { |
| 3450 | // store clear/encrypted lengths in metadata |
| 3451 | sp<MetaData> bufmeta = mBuffer->meta_data(); |
| 3452 | bufmeta->setData(kKeyPlainSizes, 0, |
| 3453 | smpl->clearsizes.array(), smpl->clearsizes.size() * 4); |
| 3454 | bufmeta->setData(kKeyEncryptedSizes, 0, |
| 3455 | smpl->encryptedsizes.array(), smpl->encryptedsizes.size() * 4); |
| 3456 | bufmeta->setData(kKeyCryptoIV, 0, smpl->iv, 16); // use 16 or the actual size? |
| 3457 | bufmeta->setInt32(kKeyCryptoDefaultIVSize, mDefaultIVSize); |
| 3458 | bufmeta->setInt32(kKeyCryptoMode, mCryptoMode); |
| 3459 | bufmeta->setData(kKeyCryptoKey, 0, mCryptoKey, 16); |
| 3460 | } |
| 3461 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 3462 | ++mCurrentSampleIndex; |
| 3463 | |
| 3464 | *out = mBuffer; |
| 3465 | mBuffer = NULL; |
| 3466 | |
| 3467 | return OK; |
| 3468 | } |
| 3469 | } |
| 3470 | |
Andreas Huber | bdba1f2 | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 3471 | MPEG4Extractor::Track *MPEG4Extractor::findTrackByMimePrefix( |
| 3472 | const char *mimePrefix) { |
| 3473 | for (Track *track = mFirstTrack; track != NULL; track = track->next) { |
| 3474 | const char *mime; |
| 3475 | if (track->meta != NULL |
| 3476 | && track->meta->findCString(kKeyMIMEType, &mime) |
| 3477 | && !strncasecmp(mime, mimePrefix, strlen(mimePrefix))) { |
| 3478 | return track; |
| 3479 | } |
| 3480 | } |
| 3481 | |
| 3482 | return NULL; |
| 3483 | } |
| 3484 | |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3485 | static bool LegacySniffMPEG4( |
Andreas Huber | 693d271 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 3486 | const sp<DataSource> &source, String8 *mimeType, float *confidence) { |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3487 | uint8_t header[8]; |
| 3488 | |
Andreas Huber | 34769bc | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 3489 | ssize_t n = source->readAt(4, header, sizeof(header)); |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3490 | if (n < (ssize_t)sizeof(header)) { |
| 3491 | return false; |
| 3492 | } |
| 3493 | |
| 3494 | if (!memcmp(header, "ftyp3gp", 7) || !memcmp(header, "ftypmp42", 8) |
James Dong | b9dbba9 | 2010-04-13 15:06:41 -0700 | [diff] [blame] | 3495 | || !memcmp(header, "ftyp3gr6", 8) || !memcmp(header, "ftyp3gs6", 8) |
| 3496 | || !memcmp(header, "ftyp3ge6", 8) || !memcmp(header, "ftyp3gg6", 8) |
Andreas Huber | 0dba737 | 2009-11-03 16:00:58 -0800 | [diff] [blame] | 3497 | || !memcmp(header, "ftypisom", 8) || !memcmp(header, "ftypM4V ", 8) |
Andreas Huber | ea5ea10 | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 3498 | || !memcmp(header, "ftypM4A ", 8) || !memcmp(header, "ftypf4v ", 8) |
Andreas Huber | 983b449 | 2010-04-01 11:42:50 -0700 | [diff] [blame] | 3499 | || !memcmp(header, "ftypkddi", 8) || !memcmp(header, "ftypM4VP", 8)) { |
Andreas Huber | 18291bc | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 3500 | *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; |
Andreas Huber | 5a1c352 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 3501 | *confidence = 0.4; |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3502 | |
| 3503 | return true; |
| 3504 | } |
| 3505 | |
| 3506 | return false; |
| 3507 | } |
| 3508 | |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3509 | static bool isCompatibleBrand(uint32_t fourcc) { |
| 3510 | static const uint32_t kCompatibleBrands[] = { |
| 3511 | FOURCC('i', 's', 'o', 'm'), |
| 3512 | FOURCC('i', 's', 'o', '2'), |
| 3513 | FOURCC('a', 'v', 'c', '1'), |
| 3514 | FOURCC('3', 'g', 'p', '4'), |
| 3515 | FOURCC('m', 'p', '4', '1'), |
| 3516 | FOURCC('m', 'p', '4', '2'), |
James Dong | 4cb2c4d | 2011-04-07 17:57:04 -0700 | [diff] [blame] | 3517 | |
| 3518 | // Won't promise that the following file types can be played. |
| 3519 | // Just give these file types a chance. |
| 3520 | FOURCC('q', 't', ' ', ' '), // Apple's QuickTime |
| 3521 | FOURCC('M', 'S', 'N', 'V'), // Sony's PSP |
Andreas Huber | 58fb391 | 2011-05-17 10:12:34 -0700 | [diff] [blame] | 3522 | |
| 3523 | FOURCC('3', 'g', '2', 'a'), // 3GPP2 |
| 3524 | FOURCC('3', 'g', '2', 'b'), |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3525 | }; |
| 3526 | |
| 3527 | for (size_t i = 0; |
| 3528 | i < sizeof(kCompatibleBrands) / sizeof(kCompatibleBrands[0]); |
| 3529 | ++i) { |
| 3530 | if (kCompatibleBrands[i] == fourcc) { |
| 3531 | return true; |
| 3532 | } |
| 3533 | } |
| 3534 | |
| 3535 | return false; |
| 3536 | } |
| 3537 | |
| 3538 | // Attempt to actually parse the 'ftyp' atom and determine if a suitable |
| 3539 | // compatible brand is present. |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3540 | // Also try to identify where this file's metadata ends |
| 3541 | // (end of the 'moov' atom) and report it to the caller as part of |
| 3542 | // the metadata. |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3543 | static bool BetterSniffMPEG4( |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3544 | const sp<DataSource> &source, String8 *mimeType, float *confidence, |
| 3545 | sp<AMessage> *meta) { |
| 3546 | // We scan up to 128 bytes to identify this file as an MP4. |
| 3547 | static const off64_t kMaxScanOffset = 128ll; |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3548 | |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3549 | off64_t offset = 0ll; |
| 3550 | bool foundGoodFileType = false; |
| 3551 | off64_t moovAtomEndOffset = -1ll; |
| 3552 | bool done = false; |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3553 | |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3554 | while (!done && offset < kMaxScanOffset) { |
| 3555 | uint32_t hdr[2]; |
| 3556 | if (source->readAt(offset, hdr, 8) < 8) { |
| 3557 | return false; |
| 3558 | } |
| 3559 | |
| 3560 | uint64_t chunkSize = ntohl(hdr[0]); |
| 3561 | uint32_t chunkType = ntohl(hdr[1]); |
| 3562 | off64_t chunkDataOffset = offset + 8; |
| 3563 | |
| 3564 | if (chunkSize == 1) { |
| 3565 | if (source->readAt(offset + 8, &chunkSize, 8) < 8) { |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3566 | return false; |
| 3567 | } |
| 3568 | |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3569 | chunkSize = ntoh64(chunkSize); |
| 3570 | chunkDataOffset += 8; |
| 3571 | |
| 3572 | if (chunkSize < 16) { |
| 3573 | // The smallest valid chunk is 16 bytes long in this case. |
| 3574 | return false; |
| 3575 | } |
| 3576 | } else if (chunkSize < 8) { |
| 3577 | // The smallest valid chunk is 8 bytes long. |
| 3578 | return false; |
| 3579 | } |
| 3580 | |
| 3581 | off64_t chunkDataSize = offset + chunkSize - chunkDataOffset; |
| 3582 | |
Marco Nelissen | 62ad907 | 2013-02-13 09:27:28 -0800 | [diff] [blame] | 3583 | char chunkstring[5]; |
| 3584 | MakeFourCCString(chunkType, chunkstring); |
| 3585 | ALOGV("saw chunk type %s, size %lld @ %lld", chunkstring, chunkSize, offset); |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3586 | switch (chunkType) { |
| 3587 | case FOURCC('f', 't', 'y', 'p'): |
| 3588 | { |
| 3589 | if (chunkDataSize < 8) { |
| 3590 | return false; |
| 3591 | } |
| 3592 | |
| 3593 | uint32_t numCompatibleBrands = (chunkDataSize - 8) / 4; |
| 3594 | for (size_t i = 0; i < numCompatibleBrands + 2; ++i) { |
| 3595 | if (i == 1) { |
| 3596 | // Skip this index, it refers to the minorVersion, |
| 3597 | // not a brand. |
| 3598 | continue; |
| 3599 | } |
| 3600 | |
| 3601 | uint32_t brand; |
| 3602 | if (source->readAt( |
| 3603 | chunkDataOffset + 4 * i, &brand, 4) < 4) { |
| 3604 | return false; |
| 3605 | } |
| 3606 | |
| 3607 | brand = ntohl(brand); |
| 3608 | |
| 3609 | if (isCompatibleBrand(brand)) { |
| 3610 | foundGoodFileType = true; |
| 3611 | break; |
| 3612 | } |
| 3613 | } |
| 3614 | |
| 3615 | if (!foundGoodFileType) { |
| 3616 | return false; |
| 3617 | } |
| 3618 | |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3619 | break; |
| 3620 | } |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3621 | |
| 3622 | case FOURCC('m', 'o', 'o', 'v'): |
| 3623 | { |
| 3624 | moovAtomEndOffset = offset + chunkSize; |
| 3625 | |
| 3626 | done = true; |
| 3627 | break; |
| 3628 | } |
| 3629 | |
| 3630 | default: |
| 3631 | break; |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3632 | } |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3633 | |
| 3634 | offset += chunkSize; |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3635 | } |
| 3636 | |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3637 | if (!foundGoodFileType) { |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3638 | return false; |
| 3639 | } |
| 3640 | |
| 3641 | *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; |
Andreas Huber | 5a1c352 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 3642 | *confidence = 0.4f; |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3643 | |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3644 | if (moovAtomEndOffset >= 0) { |
| 3645 | *meta = new AMessage; |
| 3646 | (*meta)->setInt64("meta-data-size", moovAtomEndOffset); |
| 3647 | |
Andreas Huber | 456caf3 | 2011-12-05 13:30:52 -0800 | [diff] [blame] | 3648 | ALOGV("found metadata size: %lld", moovAtomEndOffset); |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3649 | } |
| 3650 | |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3651 | return true; |
| 3652 | } |
| 3653 | |
| 3654 | bool SniffMPEG4( |
Andreas Huber | 5a1c352 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 3655 | const sp<DataSource> &source, String8 *mimeType, float *confidence, |
Andreas Huber | a0f2bf5 | 2011-12-05 11:34:43 -0800 | [diff] [blame] | 3656 | sp<AMessage> *meta) { |
| 3657 | if (BetterSniffMPEG4(source, mimeType, confidence, meta)) { |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3658 | return true; |
| 3659 | } |
| 3660 | |
| 3661 | if (LegacySniffMPEG4(source, mimeType, confidence)) { |
Steve Block | 5ff1dd5 | 2012-01-05 23:22:43 +0000 | [diff] [blame] | 3662 | ALOGW("Identified supported mpeg4 through LegacySniffMPEG4."); |
Andreas Huber | 1b52bd2 | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 3663 | return true; |
| 3664 | } |
| 3665 | |
| 3666 | return false; |
| 3667 | } |
| 3668 | |
Andreas Huber | 20111aa | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 3669 | } // namespace android |