Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 17 | //#define LOG_NDEBUG 0 |
| 18 | #define LOG_TAG "ATSParser" |
| 19 | #include <utils/Log.h> |
| 20 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 21 | #include "ATSParser.h" |
| 22 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 23 | #include "AnotherPacketSource.h" |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 24 | #include "ESQueue.h" |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 25 | #include "include/avc_utils.h" |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 26 | |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 27 | #include <media/stagefright/foundation/ABitReader.h> |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 28 | #include <media/stagefright/foundation/ABuffer.h> |
| 29 | #include <media/stagefright/foundation/ADebug.h> |
| 30 | #include <media/stagefright/foundation/AMessage.h> |
| 31 | #include <media/stagefright/foundation/hexdump.h> |
| 32 | #include <media/stagefright/MediaDefs.h> |
| 33 | #include <media/stagefright/MediaErrors.h> |
| 34 | #include <media/stagefright/MetaData.h> |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 35 | #include <media/IStreamSource.h> |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 36 | #include <utils/KeyedVector.h> |
| 37 | |
| 38 | namespace android { |
| 39 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 40 | // I want the expression "y" evaluated even if verbose logging is off. |
| 41 | #define MY_LOGV(x, y) \ |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 42 | do { unsigned tmp = y; ALOGV(x, tmp); } while (0) |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 43 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 44 | static const size_t kTSPacketSize = 188; |
| 45 | |
| 46 | struct ATSParser::Program : public RefBase { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 47 | Program(ATSParser *parser, unsigned programNumber, unsigned programMapPID); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 48 | |
| 49 | bool parsePID( |
| 50 | unsigned pid, unsigned payload_unit_start_indicator, |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 51 | ABitReader *br, status_t *err); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 52 | |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 53 | void signalDiscontinuity( |
| 54 | DiscontinuityType type, const sp<AMessage> &extra); |
| 55 | |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 56 | void signalEOS(status_t finalResult); |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 57 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 58 | sp<MediaSource> getSource(SourceType type); |
| 59 | |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 60 | int64_t convertPTSToTimestamp(uint64_t PTS); |
| 61 | |
Andreas Huber | 08e10cb | 2011-01-05 12:17:08 -0800 | [diff] [blame] | 62 | bool PTSTimeDeltaEstablished() const { |
| 63 | return mFirstPTSValid; |
| 64 | } |
| 65 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 66 | unsigned number() const { return mProgramNumber; } |
| 67 | |
| 68 | void updateProgramMapPID(unsigned programMapPID) { |
| 69 | mProgramMapPID = programMapPID; |
| 70 | } |
| 71 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 72 | private: |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 73 | ATSParser *mParser; |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 74 | unsigned mProgramNumber; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 75 | unsigned mProgramMapPID; |
| 76 | KeyedVector<unsigned, sp<Stream> > mStreams; |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 77 | bool mFirstPTSValid; |
| 78 | uint64_t mFirstPTS; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 79 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 80 | status_t parseProgramMap(ABitReader *br); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 81 | |
| 82 | DISALLOW_EVIL_CONSTRUCTORS(Program); |
| 83 | }; |
| 84 | |
| 85 | struct ATSParser::Stream : public RefBase { |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 86 | Stream(Program *program, unsigned elementaryPID, unsigned streamType); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 87 | |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 88 | unsigned type() const { return mStreamType; } |
| 89 | unsigned pid() const { return mElementaryPID; } |
| 90 | void setPID(unsigned pid) { mElementaryPID = pid; } |
| 91 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 92 | status_t parse( |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 93 | unsigned payload_unit_start_indicator, |
| 94 | ABitReader *br); |
| 95 | |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 96 | void signalDiscontinuity( |
| 97 | DiscontinuityType type, const sp<AMessage> &extra); |
| 98 | |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 99 | void signalEOS(status_t finalResult); |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 100 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 101 | sp<MediaSource> getSource(SourceType type); |
| 102 | |
| 103 | protected: |
| 104 | virtual ~Stream(); |
| 105 | |
| 106 | private: |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 107 | Program *mProgram; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 108 | unsigned mElementaryPID; |
| 109 | unsigned mStreamType; |
| 110 | |
| 111 | sp<ABuffer> mBuffer; |
| 112 | sp<AnotherPacketSource> mSource; |
| 113 | bool mPayloadStarted; |
| 114 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 115 | ElementaryStreamQueue *mQueue; |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 116 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 117 | status_t flush(); |
| 118 | status_t parsePES(ABitReader *br); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 119 | |
| 120 | void onPayloadData( |
| 121 | unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, |
| 122 | const uint8_t *data, size_t size); |
| 123 | |
Andreas Huber | 4dcc6a1 | 2010-09-01 12:22:36 -0700 | [diff] [blame] | 124 | void extractAACFrames(const sp<ABuffer> &buffer); |
| 125 | |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 126 | bool isAudio() const; |
| 127 | bool isVideo() const; |
| 128 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 129 | DISALLOW_EVIL_CONSTRUCTORS(Stream); |
| 130 | }; |
| 131 | |
| 132 | //////////////////////////////////////////////////////////////////////////////// |
| 133 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 134 | ATSParser::Program::Program( |
| 135 | ATSParser *parser, unsigned programNumber, unsigned programMapPID) |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 136 | : mParser(parser), |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 137 | mProgramNumber(programNumber), |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 138 | mProgramMapPID(programMapPID), |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 139 | mFirstPTSValid(false), |
| 140 | mFirstPTS(0) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 141 | ALOGV("new program number %u", programNumber); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | bool ATSParser::Program::parsePID( |
| 145 | unsigned pid, unsigned payload_unit_start_indicator, |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 146 | ABitReader *br, status_t *err) { |
| 147 | *err = OK; |
| 148 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 149 | if (pid == mProgramMapPID) { |
| 150 | if (payload_unit_start_indicator) { |
| 151 | unsigned skip = br->getBits(8); |
| 152 | br->skipBits(skip * 8); |
| 153 | } |
| 154 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 155 | *err = parseProgramMap(br); |
| 156 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 157 | return true; |
| 158 | } |
| 159 | |
| 160 | ssize_t index = mStreams.indexOfKey(pid); |
| 161 | if (index < 0) { |
| 162 | return false; |
| 163 | } |
| 164 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 165 | *err = mStreams.editValueAt(index)->parse( |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 166 | payload_unit_start_indicator, br); |
| 167 | |
| 168 | return true; |
| 169 | } |
| 170 | |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 171 | void ATSParser::Program::signalDiscontinuity( |
| 172 | DiscontinuityType type, const sp<AMessage> &extra) { |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 173 | for (size_t i = 0; i < mStreams.size(); ++i) { |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 174 | mStreams.editValueAt(i)->signalDiscontinuity(type, extra); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 175 | } |
| 176 | } |
| 177 | |
| 178 | void ATSParser::Program::signalEOS(status_t finalResult) { |
| 179 | for (size_t i = 0; i < mStreams.size(); ++i) { |
| 180 | mStreams.editValueAt(i)->signalEOS(finalResult); |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 181 | } |
| 182 | } |
| 183 | |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 184 | struct StreamInfo { |
| 185 | unsigned mType; |
| 186 | unsigned mPID; |
| 187 | }; |
| 188 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 189 | status_t ATSParser::Program::parseProgramMap(ABitReader *br) { |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 190 | unsigned table_id = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 191 | ALOGV(" table_id = %u", table_id); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 192 | CHECK_EQ(table_id, 0x02u); |
| 193 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 194 | unsigned section_syntax_indicator = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 195 | ALOGV(" section_syntax_indicator = %u", section_syntax_indicator); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 196 | CHECK_EQ(section_syntax_indicator, 1u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 197 | |
| 198 | CHECK_EQ(br->getBits(1), 0u); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 199 | MY_LOGV(" reserved = %u", br->getBits(2)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 200 | |
| 201 | unsigned section_length = br->getBits(12); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 202 | ALOGV(" section_length = %u", section_length); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 203 | CHECK_EQ(section_length & 0xc00, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 204 | CHECK_LE(section_length, 1021u); |
| 205 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 206 | MY_LOGV(" program_number = %u", br->getBits(16)); |
| 207 | MY_LOGV(" reserved = %u", br->getBits(2)); |
| 208 | MY_LOGV(" version_number = %u", br->getBits(5)); |
| 209 | MY_LOGV(" current_next_indicator = %u", br->getBits(1)); |
| 210 | MY_LOGV(" section_number = %u", br->getBits(8)); |
| 211 | MY_LOGV(" last_section_number = %u", br->getBits(8)); |
| 212 | MY_LOGV(" reserved = %u", br->getBits(3)); |
| 213 | MY_LOGV(" PCR_PID = 0x%04x", br->getBits(13)); |
| 214 | MY_LOGV(" reserved = %u", br->getBits(4)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 215 | |
| 216 | unsigned program_info_length = br->getBits(12); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 217 | ALOGV(" program_info_length = %u", program_info_length); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 218 | CHECK_EQ(program_info_length & 0xc00, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 219 | |
| 220 | br->skipBits(program_info_length * 8); // skip descriptors |
| 221 | |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 222 | Vector<StreamInfo> infos; |
| 223 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 224 | // infoBytesRemaining is the number of bytes that make up the |
| 225 | // variable length section of ES_infos. It does not include the |
| 226 | // final CRC. |
| 227 | size_t infoBytesRemaining = section_length - 9 - program_info_length - 4; |
| 228 | |
| 229 | while (infoBytesRemaining > 0) { |
| 230 | CHECK_GE(infoBytesRemaining, 5u); |
| 231 | |
| 232 | unsigned streamType = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 233 | ALOGV(" stream_type = 0x%02x", streamType); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 234 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 235 | MY_LOGV(" reserved = %u", br->getBits(3)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 236 | |
| 237 | unsigned elementaryPID = br->getBits(13); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 238 | ALOGV(" elementary_PID = 0x%04x", elementaryPID); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 239 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 240 | MY_LOGV(" reserved = %u", br->getBits(4)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 241 | |
| 242 | unsigned ES_info_length = br->getBits(12); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 243 | ALOGV(" ES_info_length = %u", ES_info_length); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 244 | CHECK_EQ(ES_info_length & 0xc00, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 245 | |
| 246 | CHECK_GE(infoBytesRemaining - 5, ES_info_length); |
| 247 | |
| 248 | #if 0 |
| 249 | br->skipBits(ES_info_length * 8); // skip descriptors |
| 250 | #else |
| 251 | unsigned info_bytes_remaining = ES_info_length; |
| 252 | while (info_bytes_remaining >= 2) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 253 | MY_LOGV(" tag = 0x%02x", br->getBits(8)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 254 | |
| 255 | unsigned descLength = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 256 | ALOGV(" len = %u", descLength); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 257 | |
| 258 | CHECK_GE(info_bytes_remaining, 2 + descLength); |
| 259 | |
| 260 | br->skipBits(descLength * 8); |
| 261 | |
| 262 | info_bytes_remaining -= descLength + 2; |
| 263 | } |
| 264 | CHECK_EQ(info_bytes_remaining, 0u); |
| 265 | #endif |
| 266 | |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 267 | StreamInfo info; |
| 268 | info.mType = streamType; |
| 269 | info.mPID = elementaryPID; |
| 270 | infos.push(info); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 271 | |
| 272 | infoBytesRemaining -= 5 + ES_info_length; |
| 273 | } |
| 274 | |
| 275 | CHECK_EQ(infoBytesRemaining, 0u); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 276 | MY_LOGV(" CRC = 0x%08x", br->getBits(32)); |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 277 | |
| 278 | bool PIDsChanged = false; |
| 279 | for (size_t i = 0; i < infos.size(); ++i) { |
| 280 | StreamInfo &info = infos.editItemAt(i); |
| 281 | |
| 282 | ssize_t index = mStreams.indexOfKey(info.mPID); |
| 283 | |
| 284 | if (index >= 0 && mStreams.editValueAt(index)->type() != info.mType) { |
| 285 | LOGI("uh oh. stream PIDs have changed."); |
| 286 | PIDsChanged = true; |
| 287 | break; |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | if (PIDsChanged) { |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 292 | #if 0 |
| 293 | LOGI("before:"); |
| 294 | for (size_t i = 0; i < mStreams.size(); ++i) { |
| 295 | sp<Stream> stream = mStreams.editValueAt(i); |
| 296 | |
| 297 | LOGI("PID 0x%08x => type 0x%02x", stream->pid(), stream->type()); |
| 298 | } |
| 299 | |
| 300 | LOGI("after:"); |
| 301 | for (size_t i = 0; i < infos.size(); ++i) { |
| 302 | StreamInfo &info = infos.editItemAt(i); |
| 303 | |
| 304 | LOGI("PID 0x%08x => type 0x%02x", info.mPID, info.mType); |
| 305 | } |
| 306 | #endif |
| 307 | |
| 308 | // The only case we can recover from is if we have two streams |
| 309 | // and they switched PIDs. |
| 310 | |
| 311 | bool success = false; |
| 312 | |
| 313 | if (mStreams.size() == 2 && infos.size() == 2) { |
| 314 | const StreamInfo &info1 = infos.itemAt(0); |
| 315 | const StreamInfo &info2 = infos.itemAt(1); |
| 316 | |
| 317 | sp<Stream> s1 = mStreams.editValueAt(0); |
| 318 | sp<Stream> s2 = mStreams.editValueAt(1); |
| 319 | |
| 320 | bool caseA = |
| 321 | info1.mPID == s1->pid() && info1.mType == s2->type() |
| 322 | && info2.mPID == s2->pid() && info2.mType == s1->type(); |
| 323 | |
| 324 | bool caseB = |
| 325 | info1.mPID == s2->pid() && info1.mType == s1->type() |
| 326 | && info2.mPID == s1->pid() && info2.mType == s2->type(); |
| 327 | |
| 328 | if (caseA || caseB) { |
| 329 | unsigned pid1 = s1->pid(); |
| 330 | unsigned pid2 = s2->pid(); |
| 331 | s1->setPID(pid2); |
| 332 | s2->setPID(pid1); |
| 333 | |
| 334 | mStreams.clear(); |
| 335 | mStreams.add(s1->pid(), s1); |
| 336 | mStreams.add(s2->pid(), s2); |
| 337 | |
| 338 | success = true; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | if (!success) { |
| 343 | LOGI("Stream PIDs changed and we cannot recover."); |
| 344 | return ERROR_MALFORMED; |
| 345 | } |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | for (size_t i = 0; i < infos.size(); ++i) { |
| 349 | StreamInfo &info = infos.editItemAt(i); |
| 350 | |
| 351 | ssize_t index = mStreams.indexOfKey(info.mPID); |
| 352 | |
| 353 | if (index < 0) { |
| 354 | sp<Stream> stream = new Stream(this, info.mPID, info.mType); |
| 355 | mStreams.add(info.mPID, stream); |
Andreas Huber | 19922ad | 2011-01-21 10:15:23 -0800 | [diff] [blame] | 356 | } |
| 357 | } |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 358 | |
| 359 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | sp<MediaSource> ATSParser::Program::getSource(SourceType type) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 363 | size_t index = (type == AUDIO) ? 0 : 0; |
Andreas Huber | b5c6afc | 2010-12-02 13:27:47 -0800 | [diff] [blame] | 364 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 365 | for (size_t i = 0; i < mStreams.size(); ++i) { |
| 366 | sp<MediaSource> source = mStreams.editValueAt(i)->getSource(type); |
| 367 | if (source != NULL) { |
Andreas Huber | b5c6afc | 2010-12-02 13:27:47 -0800 | [diff] [blame] | 368 | if (index == 0) { |
| 369 | return source; |
| 370 | } |
| 371 | --index; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 372 | } |
| 373 | } |
| 374 | |
| 375 | return NULL; |
| 376 | } |
| 377 | |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 378 | int64_t ATSParser::Program::convertPTSToTimestamp(uint64_t PTS) { |
Andreas Huber | ebd266c | 2011-08-30 16:06:28 -0700 | [diff] [blame] | 379 | if (!(mParser->mFlags & TS_TIMESTAMPS_ARE_ABSOLUTE)) { |
| 380 | if (!mFirstPTSValid) { |
| 381 | mFirstPTSValid = true; |
| 382 | mFirstPTS = PTS; |
| 383 | PTS = 0; |
| 384 | } else if (PTS < mFirstPTS) { |
| 385 | PTS = 0; |
| 386 | } else { |
| 387 | PTS -= mFirstPTS; |
| 388 | } |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 389 | } |
| 390 | |
| 391 | return (PTS * 100) / 9; |
| 392 | } |
| 393 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 394 | //////////////////////////////////////////////////////////////////////////////// |
| 395 | |
Andreas Huber | 54d0972 | 2010-10-12 11:34:37 -0700 | [diff] [blame] | 396 | ATSParser::Stream::Stream( |
| 397 | Program *program, unsigned elementaryPID, unsigned streamType) |
| 398 | : mProgram(program), |
| 399 | mElementaryPID(elementaryPID), |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 400 | mStreamType(streamType), |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 401 | mPayloadStarted(false), |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 402 | mQueue(NULL) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 403 | switch (mStreamType) { |
| 404 | case STREAMTYPE_H264: |
| 405 | mQueue = new ElementaryStreamQueue(ElementaryStreamQueue::H264); |
| 406 | break; |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 407 | case STREAMTYPE_MPEG2_AUDIO_ADTS: |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 408 | mQueue = new ElementaryStreamQueue(ElementaryStreamQueue::AAC); |
| 409 | break; |
| 410 | case STREAMTYPE_MPEG1_AUDIO: |
| 411 | case STREAMTYPE_MPEG2_AUDIO: |
| 412 | mQueue = new ElementaryStreamQueue( |
| 413 | ElementaryStreamQueue::MPEG_AUDIO); |
| 414 | break; |
| 415 | |
| 416 | case STREAMTYPE_MPEG1_VIDEO: |
| 417 | case STREAMTYPE_MPEG2_VIDEO: |
| 418 | mQueue = new ElementaryStreamQueue( |
| 419 | ElementaryStreamQueue::MPEG_VIDEO); |
| 420 | break; |
| 421 | |
| 422 | case STREAMTYPE_MPEG4_VIDEO: |
| 423 | mQueue = new ElementaryStreamQueue( |
| 424 | ElementaryStreamQueue::MPEG4_VIDEO); |
| 425 | break; |
| 426 | |
| 427 | default: |
| 428 | break; |
| 429 | } |
| 430 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 431 | ALOGV("new stream PID 0x%02x, type 0x%02x", elementaryPID, streamType); |
Andreas Huber | ea8c9b1 | 2011-08-31 15:04:25 -0700 | [diff] [blame] | 432 | |
| 433 | if (mQueue != NULL) { |
| 434 | mBuffer = new ABuffer(192 * 1024); |
| 435 | mBuffer->setRange(0, 0); |
| 436 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | ATSParser::Stream::~Stream() { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 440 | delete mQueue; |
| 441 | mQueue = NULL; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 442 | } |
| 443 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 444 | status_t ATSParser::Stream::parse( |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 445 | unsigned payload_unit_start_indicator, ABitReader *br) { |
Andreas Huber | ea8c9b1 | 2011-08-31 15:04:25 -0700 | [diff] [blame] | 446 | if (mQueue == NULL) { |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 447 | return OK; |
Andreas Huber | ea8c9b1 | 2011-08-31 15:04:25 -0700 | [diff] [blame] | 448 | } |
| 449 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 450 | if (payload_unit_start_indicator) { |
| 451 | if (mPayloadStarted) { |
| 452 | // Otherwise we run the danger of receiving the trailing bytes |
| 453 | // of a PES packet that we never saw the start of and assuming |
| 454 | // we have a a complete PES packet. |
| 455 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 456 | status_t err = flush(); |
| 457 | |
| 458 | if (err != OK) { |
| 459 | return err; |
| 460 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | mPayloadStarted = true; |
| 464 | } |
| 465 | |
| 466 | if (!mPayloadStarted) { |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 467 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | size_t payloadSizeBits = br->numBitsLeft(); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 471 | CHECK_EQ(payloadSizeBits % 8, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 472 | |
Andreas Huber | 56e84ba | 2011-03-02 16:18:33 -0800 | [diff] [blame] | 473 | size_t neededSize = mBuffer->size() + payloadSizeBits / 8; |
| 474 | if (mBuffer->capacity() < neededSize) { |
| 475 | // Increment in multiples of 64K. |
| 476 | neededSize = (neededSize + 65535) & ~65535; |
| 477 | |
| 478 | LOGI("resizing buffer to %d bytes", neededSize); |
| 479 | |
| 480 | sp<ABuffer> newBuffer = new ABuffer(neededSize); |
| 481 | memcpy(newBuffer->data(), mBuffer->data(), mBuffer->size()); |
| 482 | newBuffer->setRange(0, mBuffer->size()); |
| 483 | mBuffer = newBuffer; |
| 484 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 485 | |
| 486 | memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8); |
| 487 | mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8); |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 488 | |
| 489 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 490 | } |
| 491 | |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 492 | bool ATSParser::Stream::isVideo() const { |
| 493 | switch (mStreamType) { |
| 494 | case STREAMTYPE_H264: |
| 495 | case STREAMTYPE_MPEG1_VIDEO: |
| 496 | case STREAMTYPE_MPEG2_VIDEO: |
| 497 | case STREAMTYPE_MPEG4_VIDEO: |
| 498 | return true; |
| 499 | |
| 500 | default: |
| 501 | return false; |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | bool ATSParser::Stream::isAudio() const { |
| 506 | switch (mStreamType) { |
| 507 | case STREAMTYPE_MPEG1_AUDIO: |
| 508 | case STREAMTYPE_MPEG2_AUDIO: |
| 509 | case STREAMTYPE_MPEG2_AUDIO_ADTS: |
| 510 | return true; |
| 511 | |
| 512 | default: |
| 513 | return false; |
| 514 | } |
| 515 | } |
| 516 | |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 517 | void ATSParser::Stream::signalDiscontinuity( |
| 518 | DiscontinuityType type, const sp<AMessage> &extra) { |
Andreas Huber | ea8c9b1 | 2011-08-31 15:04:25 -0700 | [diff] [blame] | 519 | if (mQueue == NULL) { |
| 520 | return; |
| 521 | } |
| 522 | |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 523 | mPayloadStarted = false; |
| 524 | mBuffer->setRange(0, 0); |
| 525 | |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 526 | bool clearFormat = false; |
| 527 | if (isAudio()) { |
| 528 | if (type & DISCONTINUITY_AUDIO_FORMAT) { |
| 529 | clearFormat = true; |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 530 | } |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 531 | } else { |
| 532 | if (type & DISCONTINUITY_VIDEO_FORMAT) { |
| 533 | clearFormat = true; |
| 534 | } |
| 535 | } |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 536 | |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 537 | mQueue->clear(clearFormat); |
| 538 | |
| 539 | if (type & DISCONTINUITY_TIME) { |
| 540 | uint64_t resumeAtPTS; |
| 541 | if (extra != NULL |
| 542 | && extra->findInt64( |
| 543 | IStreamListener::kKeyResumeAtPTS, |
| 544 | (int64_t *)&resumeAtPTS)) { |
| 545 | int64_t resumeAtMediaTimeUs = |
| 546 | mProgram->convertPTSToTimestamp(resumeAtPTS); |
| 547 | |
| 548 | extra->setInt64("resume-at-mediatimeUs", resumeAtMediaTimeUs); |
| 549 | } |
| 550 | } |
| 551 | |
| 552 | if (mSource != NULL) { |
| 553 | mSource->queueDiscontinuity(type, extra); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 554 | } |
| 555 | } |
| 556 | |
| 557 | void ATSParser::Stream::signalEOS(status_t finalResult) { |
| 558 | if (mSource != NULL) { |
| 559 | mSource->signalEOS(finalResult); |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 560 | } |
| 561 | } |
| 562 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 563 | status_t ATSParser::Stream::parsePES(ABitReader *br) { |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 564 | unsigned packet_startcode_prefix = br->getBits(24); |
| 565 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 566 | ALOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 567 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 568 | if (packet_startcode_prefix != 1) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 569 | ALOGV("Supposedly payload_unit_start=1 unit does not start " |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 570 | "with startcode."); |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 571 | |
| 572 | return ERROR_MALFORMED; |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 573 | } |
| 574 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 575 | CHECK_EQ(packet_startcode_prefix, 0x000001u); |
| 576 | |
| 577 | unsigned stream_id = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 578 | ALOGV("stream_id = 0x%02x", stream_id); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 579 | |
| 580 | unsigned PES_packet_length = br->getBits(16); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 581 | ALOGV("PES_packet_length = %u", PES_packet_length); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 582 | |
| 583 | if (stream_id != 0xbc // program_stream_map |
| 584 | && stream_id != 0xbe // padding_stream |
| 585 | && stream_id != 0xbf // private_stream_2 |
| 586 | && stream_id != 0xf0 // ECM |
| 587 | && stream_id != 0xf1 // EMM |
| 588 | && stream_id != 0xff // program_stream_directory |
| 589 | && stream_id != 0xf2 // DSMCC |
| 590 | && stream_id != 0xf8) { // H.222.1 type E |
| 591 | CHECK_EQ(br->getBits(2), 2u); |
| 592 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 593 | MY_LOGV("PES_scrambling_control = %u", br->getBits(2)); |
| 594 | MY_LOGV("PES_priority = %u", br->getBits(1)); |
| 595 | MY_LOGV("data_alignment_indicator = %u", br->getBits(1)); |
| 596 | MY_LOGV("copyright = %u", br->getBits(1)); |
| 597 | MY_LOGV("original_or_copy = %u", br->getBits(1)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 598 | |
| 599 | unsigned PTS_DTS_flags = br->getBits(2); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 600 | ALOGV("PTS_DTS_flags = %u", PTS_DTS_flags); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 601 | |
| 602 | unsigned ESCR_flag = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 603 | ALOGV("ESCR_flag = %u", ESCR_flag); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 604 | |
| 605 | unsigned ES_rate_flag = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 606 | ALOGV("ES_rate_flag = %u", ES_rate_flag); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 607 | |
| 608 | unsigned DSM_trick_mode_flag = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 609 | ALOGV("DSM_trick_mode_flag = %u", DSM_trick_mode_flag); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 610 | |
| 611 | unsigned additional_copy_info_flag = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 612 | ALOGV("additional_copy_info_flag = %u", additional_copy_info_flag); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 613 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 614 | MY_LOGV("PES_CRC_flag = %u", br->getBits(1)); |
| 615 | MY_LOGV("PES_extension_flag = %u", br->getBits(1)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 616 | |
| 617 | unsigned PES_header_data_length = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 618 | ALOGV("PES_header_data_length = %u", PES_header_data_length); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 619 | |
| 620 | unsigned optional_bytes_remaining = PES_header_data_length; |
| 621 | |
| 622 | uint64_t PTS = 0, DTS = 0; |
| 623 | |
| 624 | if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { |
| 625 | CHECK_GE(optional_bytes_remaining, 5u); |
| 626 | |
| 627 | CHECK_EQ(br->getBits(4), PTS_DTS_flags); |
| 628 | |
| 629 | PTS = ((uint64_t)br->getBits(3)) << 30; |
| 630 | CHECK_EQ(br->getBits(1), 1u); |
| 631 | PTS |= ((uint64_t)br->getBits(15)) << 15; |
| 632 | CHECK_EQ(br->getBits(1), 1u); |
| 633 | PTS |= br->getBits(15); |
| 634 | CHECK_EQ(br->getBits(1), 1u); |
| 635 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 636 | ALOGV("PTS = %llu", PTS); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 637 | // LOGI("PTS = %.2f secs", PTS / 90000.0f); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 638 | |
| 639 | optional_bytes_remaining -= 5; |
| 640 | |
| 641 | if (PTS_DTS_flags == 3) { |
| 642 | CHECK_GE(optional_bytes_remaining, 5u); |
| 643 | |
| 644 | CHECK_EQ(br->getBits(4), 1u); |
| 645 | |
| 646 | DTS = ((uint64_t)br->getBits(3)) << 30; |
| 647 | CHECK_EQ(br->getBits(1), 1u); |
| 648 | DTS |= ((uint64_t)br->getBits(15)) << 15; |
| 649 | CHECK_EQ(br->getBits(1), 1u); |
| 650 | DTS |= br->getBits(15); |
| 651 | CHECK_EQ(br->getBits(1), 1u); |
| 652 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 653 | ALOGV("DTS = %llu", DTS); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 654 | |
| 655 | optional_bytes_remaining -= 5; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | if (ESCR_flag) { |
| 660 | CHECK_GE(optional_bytes_remaining, 6u); |
| 661 | |
| 662 | br->getBits(2); |
| 663 | |
| 664 | uint64_t ESCR = ((uint64_t)br->getBits(3)) << 30; |
| 665 | CHECK_EQ(br->getBits(1), 1u); |
| 666 | ESCR |= ((uint64_t)br->getBits(15)) << 15; |
| 667 | CHECK_EQ(br->getBits(1), 1u); |
| 668 | ESCR |= br->getBits(15); |
| 669 | CHECK_EQ(br->getBits(1), 1u); |
| 670 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 671 | ALOGV("ESCR = %llu", ESCR); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 672 | MY_LOGV("ESCR_extension = %u", br->getBits(9)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 673 | |
| 674 | CHECK_EQ(br->getBits(1), 1u); |
| 675 | |
| 676 | optional_bytes_remaining -= 6; |
| 677 | } |
| 678 | |
| 679 | if (ES_rate_flag) { |
| 680 | CHECK_GE(optional_bytes_remaining, 3u); |
| 681 | |
| 682 | CHECK_EQ(br->getBits(1), 1u); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 683 | MY_LOGV("ES_rate = %u", br->getBits(22)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 684 | CHECK_EQ(br->getBits(1), 1u); |
| 685 | |
| 686 | optional_bytes_remaining -= 3; |
| 687 | } |
| 688 | |
| 689 | br->skipBits(optional_bytes_remaining * 8); |
| 690 | |
| 691 | // ES data follows. |
| 692 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 693 | if (PES_packet_length != 0) { |
| 694 | CHECK_GE(PES_packet_length, PES_header_data_length + 3); |
| 695 | |
| 696 | unsigned dataLength = |
| 697 | PES_packet_length - 3 - PES_header_data_length; |
| 698 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 699 | if (br->numBitsLeft() < dataLength * 8) { |
| 700 | LOGE("PES packet does not carry enough data to contain " |
| 701 | "payload. (numBitsLeft = %d, required = %d)", |
| 702 | br->numBitsLeft(), dataLength * 8); |
| 703 | |
| 704 | return ERROR_MALFORMED; |
| 705 | } |
| 706 | |
Andreas Huber | c751ecc | 2010-09-27 12:04:43 -0700 | [diff] [blame] | 707 | CHECK_GE(br->numBitsLeft(), dataLength * 8); |
| 708 | |
| 709 | onPayloadData( |
| 710 | PTS_DTS_flags, PTS, DTS, br->data(), dataLength); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 711 | |
| 712 | br->skipBits(dataLength * 8); |
| 713 | } else { |
Andreas Huber | c751ecc | 2010-09-27 12:04:43 -0700 | [diff] [blame] | 714 | onPayloadData( |
| 715 | PTS_DTS_flags, PTS, DTS, |
| 716 | br->data(), br->numBitsLeft() / 8); |
| 717 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 718 | size_t payloadSizeBits = br->numBitsLeft(); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 719 | CHECK_EQ(payloadSizeBits % 8, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 720 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 721 | ALOGV("There's %d bytes of payload.", payloadSizeBits / 8); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 722 | } |
| 723 | } else if (stream_id == 0xbe) { // padding_stream |
| 724 | CHECK_NE(PES_packet_length, 0u); |
| 725 | br->skipBits(PES_packet_length * 8); |
| 726 | } else { |
| 727 | CHECK_NE(PES_packet_length, 0u); |
| 728 | br->skipBits(PES_packet_length * 8); |
| 729 | } |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 730 | |
| 731 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 732 | } |
| 733 | |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 734 | status_t ATSParser::Stream::flush() { |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 735 | if (mBuffer->size() == 0) { |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 736 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 737 | } |
| 738 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 739 | ALOGV("flushing stream 0x%04x size = %d", mElementaryPID, mBuffer->size()); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 740 | |
| 741 | ABitReader br(mBuffer->data(), mBuffer->size()); |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 742 | |
| 743 | status_t err = parsePES(&br); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 744 | |
| 745 | mBuffer->setRange(0, 0); |
Andreas Huber | d38ecf8 | 2011-09-01 11:04:43 -0700 | [diff] [blame] | 746 | |
| 747 | return err; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 748 | } |
| 749 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 750 | void ATSParser::Stream::onPayloadData( |
| 751 | unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, |
| 752 | const uint8_t *data, size_t size) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 753 | ALOGV("onPayloadData mStreamType=0x%02x", mStreamType); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 754 | |
Andreas Huber | 33d9406 | 2011-10-12 12:14:23 -0700 | [diff] [blame] | 755 | int64_t timeUs = 0ll; // no presentation timestamp available. |
| 756 | if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { |
| 757 | timeUs = mProgram->convertPTSToTimestamp(PTS); |
| 758 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 759 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 760 | status_t err = mQueue->appendData(data, size, timeUs); |
Andreas Huber | b5c6afc | 2010-12-02 13:27:47 -0800 | [diff] [blame] | 761 | |
| 762 | if (err != OK) { |
| 763 | return; |
| 764 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 765 | |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 766 | sp<ABuffer> accessUnit; |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 767 | while ((accessUnit = mQueue->dequeueAccessUnit()) != NULL) { |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 768 | if (mSource == NULL) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 769 | sp<MetaData> meta = mQueue->getFormat(); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 770 | |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 771 | if (meta != NULL) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 772 | ALOGV("Stream PID 0x%08x of type 0x%02x now has data.", |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 773 | mElementaryPID, mStreamType); |
| 774 | |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 775 | mSource = new AnotherPacketSource(meta); |
| 776 | mSource->queueAccessUnit(accessUnit); |
Andreas Huber | 4dcc6a1 | 2010-09-01 12:22:36 -0700 | [diff] [blame] | 777 | } |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 778 | } else if (mQueue->getFormat() != NULL) { |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 779 | // After a discontinuity we invalidate the queue's format |
| 780 | // and won't enqueue any access units to the source until |
| 781 | // the queue has reestablished the new format. |
Andreas Huber | 54e6649 | 2010-12-23 10:27:40 -0800 | [diff] [blame] | 782 | |
| 783 | if (mSource->getFormat() == NULL) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 784 | mSource->setFormat(mQueue->getFormat()); |
Andreas Huber | 54e6649 | 2010-12-23 10:27:40 -0800 | [diff] [blame] | 785 | } |
Andreas Huber | b72c7e3 | 2010-10-01 10:51:41 -0700 | [diff] [blame] | 786 | mSource->queueAccessUnit(accessUnit); |
Andreas Huber | 4dcc6a1 | 2010-09-01 12:22:36 -0700 | [diff] [blame] | 787 | } |
| 788 | } |
Andreas Huber | 4dcc6a1 | 2010-09-01 12:22:36 -0700 | [diff] [blame] | 789 | } |
| 790 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 791 | sp<MediaSource> ATSParser::Stream::getSource(SourceType type) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 792 | switch (type) { |
| 793 | case VIDEO: |
| 794 | { |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 795 | if (isVideo()) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 796 | return mSource; |
| 797 | } |
| 798 | break; |
| 799 | } |
| 800 | |
| 801 | case AUDIO: |
| 802 | { |
Andreas Huber | 66a051a | 2011-11-28 12:36:11 -0800 | [diff] [blame] | 803 | if (isAudio()) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 804 | return mSource; |
| 805 | } |
| 806 | break; |
| 807 | } |
| 808 | |
| 809 | default: |
| 810 | break; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | return NULL; |
| 814 | } |
| 815 | |
| 816 | //////////////////////////////////////////////////////////////////////////////// |
| 817 | |
Andreas Huber | ebd266c | 2011-08-30 16:06:28 -0700 | [diff] [blame] | 818 | ATSParser::ATSParser(uint32_t flags) |
| 819 | : mFlags(flags) { |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | ATSParser::~ATSParser() { |
| 823 | } |
| 824 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 825 | status_t ATSParser::feedTSPacket(const void *data, size_t size) { |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 826 | CHECK_EQ(size, kTSPacketSize); |
| 827 | |
| 828 | ABitReader br((const uint8_t *)data, kTSPacketSize); |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 829 | return parseTS(&br); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 832 | void ATSParser::signalDiscontinuity( |
| 833 | DiscontinuityType type, const sp<AMessage> &extra) { |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 834 | for (size_t i = 0; i < mPrograms.size(); ++i) { |
Andreas Huber | 669ad13 | 2011-03-02 15:34:46 -0800 | [diff] [blame] | 835 | mPrograms.editItemAt(i)->signalDiscontinuity(type, extra); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 836 | } |
| 837 | } |
| 838 | |
| 839 | void ATSParser::signalEOS(status_t finalResult) { |
| 840 | CHECK_NE(finalResult, (status_t)OK); |
| 841 | |
| 842 | for (size_t i = 0; i < mPrograms.size(); ++i) { |
| 843 | mPrograms.editItemAt(i)->signalEOS(finalResult); |
Andreas Huber | 4c19bf9 | 2010-09-08 14:32:20 -0700 | [diff] [blame] | 844 | } |
| 845 | } |
| 846 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 847 | void ATSParser::parseProgramAssociationTable(ABitReader *br) { |
| 848 | unsigned table_id = br->getBits(8); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 849 | ALOGV(" table_id = %u", table_id); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 850 | CHECK_EQ(table_id, 0x00u); |
| 851 | |
| 852 | unsigned section_syntax_indictor = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 853 | ALOGV(" section_syntax_indictor = %u", section_syntax_indictor); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 854 | CHECK_EQ(section_syntax_indictor, 1u); |
| 855 | |
| 856 | CHECK_EQ(br->getBits(1), 0u); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 857 | MY_LOGV(" reserved = %u", br->getBits(2)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 858 | |
| 859 | unsigned section_length = br->getBits(12); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 860 | ALOGV(" section_length = %u", section_length); |
Andreas Huber | a158746 | 2010-12-15 15:17:42 -0800 | [diff] [blame] | 861 | CHECK_EQ(section_length & 0xc00, 0u); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 862 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 863 | MY_LOGV(" transport_stream_id = %u", br->getBits(16)); |
| 864 | MY_LOGV(" reserved = %u", br->getBits(2)); |
| 865 | MY_LOGV(" version_number = %u", br->getBits(5)); |
| 866 | MY_LOGV(" current_next_indicator = %u", br->getBits(1)); |
| 867 | MY_LOGV(" section_number = %u", br->getBits(8)); |
| 868 | MY_LOGV(" last_section_number = %u", br->getBits(8)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 869 | |
| 870 | size_t numProgramBytes = (section_length - 5 /* header */ - 4 /* crc */); |
| 871 | CHECK_EQ((numProgramBytes % 4), 0u); |
| 872 | |
| 873 | for (size_t i = 0; i < numProgramBytes / 4; ++i) { |
| 874 | unsigned program_number = br->getBits(16); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 875 | ALOGV(" program_number = %u", program_number); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 876 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 877 | MY_LOGV(" reserved = %u", br->getBits(3)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 878 | |
| 879 | if (program_number == 0) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 880 | MY_LOGV(" network_PID = 0x%04x", br->getBits(13)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 881 | } else { |
| 882 | unsigned programMapPID = br->getBits(13); |
| 883 | |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 884 | ALOGV(" program_map_PID = 0x%04x", programMapPID); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 885 | |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 886 | bool found = false; |
| 887 | for (size_t index = 0; index < mPrograms.size(); ++index) { |
| 888 | const sp<Program> &program = mPrograms.itemAt(index); |
| 889 | |
| 890 | if (program->number() == program_number) { |
| 891 | program->updateProgramMapPID(programMapPID); |
| 892 | found = true; |
| 893 | break; |
| 894 | } |
| 895 | } |
| 896 | |
| 897 | if (!found) { |
| 898 | mPrograms.push( |
| 899 | new Program(this, program_number, programMapPID)); |
| 900 | } |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 901 | } |
| 902 | } |
| 903 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 904 | MY_LOGV(" CRC = 0x%08x", br->getBits(32)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 905 | } |
| 906 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 907 | status_t ATSParser::parsePID( |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 908 | ABitReader *br, unsigned PID, |
| 909 | unsigned payload_unit_start_indicator) { |
| 910 | if (PID == 0) { |
| 911 | if (payload_unit_start_indicator) { |
| 912 | unsigned skip = br->getBits(8); |
| 913 | br->skipBits(skip * 8); |
| 914 | } |
| 915 | parseProgramAssociationTable(br); |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 916 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 917 | } |
| 918 | |
| 919 | bool handled = false; |
| 920 | for (size_t i = 0; i < mPrograms.size(); ++i) { |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 921 | status_t err; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 922 | if (mPrograms.editItemAt(i)->parsePID( |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 923 | PID, payload_unit_start_indicator, br, &err)) { |
| 924 | if (err != OK) { |
| 925 | return err; |
| 926 | } |
| 927 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 928 | handled = true; |
| 929 | break; |
| 930 | } |
| 931 | } |
| 932 | |
| 933 | if (!handled) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 934 | ALOGV("PID 0x%04x not handled.", PID); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 935 | } |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 936 | |
| 937 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | void ATSParser::parseAdaptationField(ABitReader *br) { |
| 941 | unsigned adaptation_field_length = br->getBits(8); |
| 942 | if (adaptation_field_length > 0) { |
| 943 | br->skipBits(adaptation_field_length * 8); // XXX |
| 944 | } |
| 945 | } |
| 946 | |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 947 | status_t ATSParser::parseTS(ABitReader *br) { |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 948 | ALOGV("---"); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 949 | |
| 950 | unsigned sync_byte = br->getBits(8); |
| 951 | CHECK_EQ(sync_byte, 0x47u); |
| 952 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 953 | MY_LOGV("transport_error_indicator = %u", br->getBits(1)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 954 | |
| 955 | unsigned payload_unit_start_indicator = br->getBits(1); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 956 | ALOGV("payload_unit_start_indicator = %u", payload_unit_start_indicator); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 957 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 958 | MY_LOGV("transport_priority = %u", br->getBits(1)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 959 | |
| 960 | unsigned PID = br->getBits(13); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 961 | ALOGV("PID = 0x%04x", PID); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 962 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 963 | MY_LOGV("transport_scrambling_control = %u", br->getBits(2)); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 964 | |
| 965 | unsigned adaptation_field_control = br->getBits(2); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 966 | ALOGV("adaptation_field_control = %u", adaptation_field_control); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 967 | |
Andreas Huber | c751ecc | 2010-09-27 12:04:43 -0700 | [diff] [blame] | 968 | unsigned continuity_counter = br->getBits(4); |
Steve Block | 71f2cf1 | 2011-10-20 11:56:00 +0100 | [diff] [blame] | 969 | ALOGV("continuity_counter = %u", continuity_counter); |
Andreas Huber | c751ecc | 2010-09-27 12:04:43 -0700 | [diff] [blame] | 970 | |
| 971 | // LOGI("PID = 0x%04x, continuity_counter = %u", PID, continuity_counter); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 972 | |
| 973 | if (adaptation_field_control == 2 || adaptation_field_control == 3) { |
| 974 | parseAdaptationField(br); |
| 975 | } |
| 976 | |
| 977 | if (adaptation_field_control == 1 || adaptation_field_control == 3) { |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 978 | return parsePID(br, PID, payload_unit_start_indicator); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 979 | } |
Andreas Huber | eeddb0e | 2011-08-31 16:29:05 -0700 | [diff] [blame] | 980 | |
| 981 | return OK; |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 982 | } |
| 983 | |
| 984 | sp<MediaSource> ATSParser::getSource(SourceType type) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 985 | int which = -1; // any |
| 986 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 987 | for (size_t i = 0; i < mPrograms.size(); ++i) { |
Andreas Huber | eb2f9c1 | 2011-05-19 08:37:39 -0700 | [diff] [blame] | 988 | const sp<Program> &program = mPrograms.editItemAt(i); |
| 989 | |
| 990 | if (which >= 0 && (int)program->number() != which) { |
| 991 | continue; |
| 992 | } |
| 993 | |
| 994 | sp<MediaSource> source = program->getSource(type); |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 995 | |
| 996 | if (source != NULL) { |
| 997 | return source; |
| 998 | } |
| 999 | } |
| 1000 | |
| 1001 | return NULL; |
| 1002 | } |
| 1003 | |
Andreas Huber | 08e10cb | 2011-01-05 12:17:08 -0800 | [diff] [blame] | 1004 | bool ATSParser::PTSTimeDeltaEstablished() { |
| 1005 | if (mPrograms.isEmpty()) { |
| 1006 | return false; |
| 1007 | } |
| 1008 | |
| 1009 | return mPrograms.editItemAt(0)->PTSTimeDeltaEstablished(); |
| 1010 | } |
| 1011 | |
Andreas Huber | a557b24 | 2010-06-07 13:05:37 -0700 | [diff] [blame] | 1012 | } // namespace android |