Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -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 "APacketSource" |
| 19 | #include <utils/Log.h> |
| 20 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 21 | #include "APacketSource.h" |
| 22 | |
Andreas Huber | b672373 | 2011-02-22 16:25:00 -0800 | [diff] [blame] | 23 | #include "ARawAudioAssembler.h" |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 24 | #include "ASessionDescription.h" |
| 25 | |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 26 | #include "avc_utils.h" |
| 27 | |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 28 | #include <ctype.h> |
| 29 | |
Andreas Huber | a979ad6 | 2010-08-19 10:56:15 -0700 | [diff] [blame] | 30 | #include <media/stagefright/foundation/ABitReader.h> |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 31 | #include <media/stagefright/foundation/ABuffer.h> |
| 32 | #include <media/stagefright/foundation/ADebug.h> |
| 33 | #include <media/stagefright/foundation/AMessage.h> |
| 34 | #include <media/stagefright/foundation/AString.h> |
| 35 | #include <media/stagefright/foundation/base64.h> |
| 36 | #include <media/stagefright/foundation/hexdump.h> |
| 37 | #include <media/stagefright/MediaBuffer.h> |
| 38 | #include <media/stagefright/MediaDefs.h> |
| 39 | #include <media/stagefright/MetaData.h> |
| 40 | #include <utils/Vector.h> |
| 41 | |
| 42 | namespace android { |
| 43 | |
| 44 | static bool GetAttribute(const char *s, const char *key, AString *value) { |
| 45 | value->clear(); |
| 46 | |
| 47 | size_t keyLen = strlen(key); |
| 48 | |
| 49 | for (;;) { |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 50 | while (isspace(*s)) { |
| 51 | ++s; |
| 52 | } |
| 53 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 54 | const char *colonPos = strchr(s, ';'); |
| 55 | |
| 56 | size_t len = |
| 57 | (colonPos == NULL) ? strlen(s) : colonPos - s; |
| 58 | |
| 59 | if (len >= keyLen + 1 && s[keyLen] == '=' && !strncmp(s, key, keyLen)) { |
| 60 | value->setTo(&s[keyLen + 1], len - keyLen - 1); |
| 61 | return true; |
| 62 | } |
| 63 | |
| 64 | if (colonPos == NULL) { |
| 65 | return false; |
| 66 | } |
| 67 | |
| 68 | s = colonPos + 1; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | static sp<ABuffer> decodeHex(const AString &s) { |
| 73 | if ((s.size() % 2) != 0) { |
| 74 | return NULL; |
| 75 | } |
| 76 | |
| 77 | size_t outLen = s.size() / 2; |
| 78 | sp<ABuffer> buffer = new ABuffer(outLen); |
| 79 | uint8_t *out = buffer->data(); |
| 80 | |
| 81 | uint8_t accum = 0; |
| 82 | for (size_t i = 0; i < s.size(); ++i) { |
| 83 | char c = s.c_str()[i]; |
| 84 | unsigned value; |
| 85 | if (c >= '0' && c <= '9') { |
| 86 | value = c - '0'; |
| 87 | } else if (c >= 'a' && c <= 'f') { |
| 88 | value = c - 'a' + 10; |
| 89 | } else if (c >= 'A' && c <= 'F') { |
| 90 | value = c - 'A' + 10; |
| 91 | } else { |
| 92 | return NULL; |
| 93 | } |
| 94 | |
| 95 | accum = (accum << 4) | value; |
| 96 | |
| 97 | if (i & 1) { |
| 98 | *out++ = accum; |
| 99 | |
| 100 | accum = 0; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | return buffer; |
| 105 | } |
| 106 | |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 107 | static sp<ABuffer> MakeAVCCodecSpecificData( |
| 108 | const char *params, int32_t *width, int32_t *height) { |
| 109 | *width = 0; |
| 110 | *height = 0; |
| 111 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 112 | AString val; |
Andreas Huber | 426b650 | 2010-08-04 14:04:31 -0700 | [diff] [blame] | 113 | if (!GetAttribute(params, "profile-level-id", &val)) { |
| 114 | return NULL; |
| 115 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 116 | |
| 117 | sp<ABuffer> profileLevelID = decodeHex(val); |
| 118 | CHECK(profileLevelID != NULL); |
| 119 | CHECK_EQ(profileLevelID->size(), 3u); |
| 120 | |
| 121 | Vector<sp<ABuffer> > paramSets; |
| 122 | |
| 123 | size_t numSeqParameterSets = 0; |
| 124 | size_t totalSeqParameterSetSize = 0; |
| 125 | size_t numPicParameterSets = 0; |
| 126 | size_t totalPicParameterSetSize = 0; |
| 127 | |
Andreas Huber | 426b650 | 2010-08-04 14:04:31 -0700 | [diff] [blame] | 128 | if (!GetAttribute(params, "sprop-parameter-sets", &val)) { |
| 129 | return NULL; |
| 130 | } |
| 131 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 132 | size_t start = 0; |
| 133 | for (;;) { |
| 134 | ssize_t commaPos = val.find(",", start); |
| 135 | size_t end = (commaPos < 0) ? val.size() : commaPos; |
| 136 | |
| 137 | AString nalString(val, start, end - start); |
| 138 | sp<ABuffer> nal = decodeBase64(nalString); |
| 139 | CHECK(nal != NULL); |
| 140 | CHECK_GT(nal->size(), 0u); |
| 141 | CHECK_LE(nal->size(), 65535u); |
| 142 | |
| 143 | uint8_t nalType = nal->data()[0] & 0x1f; |
| 144 | if (numSeqParameterSets == 0) { |
| 145 | CHECK_EQ((unsigned)nalType, 7u); |
| 146 | } else if (numPicParameterSets > 0) { |
| 147 | CHECK_EQ((unsigned)nalType, 8u); |
| 148 | } |
| 149 | if (nalType == 7) { |
| 150 | ++numSeqParameterSets; |
| 151 | totalSeqParameterSetSize += nal->size(); |
| 152 | } else { |
| 153 | CHECK_EQ((unsigned)nalType, 8u); |
| 154 | ++numPicParameterSets; |
| 155 | totalPicParameterSetSize += nal->size(); |
| 156 | } |
| 157 | |
| 158 | paramSets.push(nal); |
| 159 | |
| 160 | if (commaPos < 0) { |
| 161 | break; |
| 162 | } |
| 163 | |
| 164 | start = commaPos + 1; |
| 165 | } |
| 166 | |
| 167 | CHECK_LT(numSeqParameterSets, 32u); |
| 168 | CHECK_LE(numPicParameterSets, 255u); |
| 169 | |
| 170 | size_t csdSize = |
| 171 | 1 + 3 + 1 + 1 |
| 172 | + 2 * numSeqParameterSets + totalSeqParameterSetSize |
| 173 | + 1 + 2 * numPicParameterSets + totalPicParameterSetSize; |
| 174 | |
| 175 | sp<ABuffer> csd = new ABuffer(csdSize); |
| 176 | uint8_t *out = csd->data(); |
| 177 | |
| 178 | *out++ = 0x01; // configurationVersion |
| 179 | memcpy(out, profileLevelID->data(), 3); |
| 180 | out += 3; |
| 181 | *out++ = (0x3f << 2) | 1; // lengthSize == 2 bytes |
| 182 | *out++ = 0xe0 | numSeqParameterSets; |
| 183 | |
| 184 | for (size_t i = 0; i < numSeqParameterSets; ++i) { |
| 185 | sp<ABuffer> nal = paramSets.editItemAt(i); |
| 186 | |
| 187 | *out++ = nal->size() >> 8; |
| 188 | *out++ = nal->size() & 0xff; |
| 189 | |
| 190 | memcpy(out, nal->data(), nal->size()); |
| 191 | |
| 192 | out += nal->size(); |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 193 | |
| 194 | if (i == 0) { |
| 195 | FindAVCDimensions(nal, width, height); |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 196 | LOGI("dimensions %dx%d", *width, *height); |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 197 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 198 | } |
| 199 | |
| 200 | *out++ = numPicParameterSets; |
| 201 | |
| 202 | for (size_t i = 0; i < numPicParameterSets; ++i) { |
| 203 | sp<ABuffer> nal = paramSets.editItemAt(i + numSeqParameterSets); |
| 204 | |
| 205 | *out++ = nal->size() >> 8; |
| 206 | *out++ = nal->size() & 0xff; |
| 207 | |
| 208 | memcpy(out, nal->data(), nal->size()); |
| 209 | |
| 210 | out += nal->size(); |
| 211 | } |
| 212 | |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 213 | // hexdump(csd->data(), csd->size()); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 214 | |
| 215 | return csd; |
| 216 | } |
| 217 | |
| 218 | sp<ABuffer> MakeAACCodecSpecificData(const char *params) { |
| 219 | AString val; |
| 220 | CHECK(GetAttribute(params, "config", &val)); |
| 221 | |
| 222 | sp<ABuffer> config = decodeHex(val); |
| 223 | CHECK(config != NULL); |
| 224 | CHECK_GE(config->size(), 4u); |
| 225 | |
| 226 | const uint8_t *data = config->data(); |
| 227 | uint32_t x = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; |
| 228 | x = (x >> 1) & 0xffff; |
| 229 | |
| 230 | static const uint8_t kStaticESDS[] = { |
| 231 | 0x03, 22, |
| 232 | 0x00, 0x00, // ES_ID |
| 233 | 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag |
| 234 | |
| 235 | 0x04, 17, |
| 236 | 0x40, // Audio ISO/IEC 14496-3 |
| 237 | 0x00, 0x00, 0x00, 0x00, |
| 238 | 0x00, 0x00, 0x00, 0x00, |
| 239 | 0x00, 0x00, 0x00, 0x00, |
| 240 | |
| 241 | 0x05, 2, |
| 242 | // AudioSpecificInfo follows |
| 243 | }; |
| 244 | |
| 245 | sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + 2); |
| 246 | memcpy(csd->data(), kStaticESDS, sizeof(kStaticESDS)); |
| 247 | csd->data()[sizeof(kStaticESDS)] = (x >> 8) & 0xff; |
| 248 | csd->data()[sizeof(kStaticESDS) + 1] = x & 0xff; |
| 249 | |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 250 | // hexdump(csd->data(), csd->size()); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 251 | |
| 252 | return csd; |
| 253 | } |
| 254 | |
Andreas Huber | e536f80 | 2010-08-31 14:25:36 -0700 | [diff] [blame] | 255 | // From mpeg4-generic configuration data. |
| 256 | sp<ABuffer> MakeAACCodecSpecificData2(const char *params) { |
| 257 | AString val; |
| 258 | unsigned long objectType; |
| 259 | if (GetAttribute(params, "objectType", &val)) { |
| 260 | const char *s = val.c_str(); |
| 261 | char *end; |
| 262 | objectType = strtoul(s, &end, 10); |
| 263 | CHECK(end > s && *end == '\0'); |
| 264 | } else { |
| 265 | objectType = 0x40; // Audio ISO/IEC 14496-3 |
| 266 | } |
| 267 | |
| 268 | CHECK(GetAttribute(params, "config", &val)); |
| 269 | |
| 270 | sp<ABuffer> config = decodeHex(val); |
| 271 | CHECK(config != NULL); |
| 272 | |
| 273 | // Make sure size fits into a single byte and doesn't have to |
| 274 | // be encoded. |
| 275 | CHECK_LT(20 + config->size(), 128u); |
| 276 | |
| 277 | const uint8_t *data = config->data(); |
| 278 | |
| 279 | static const uint8_t kStaticESDS[] = { |
| 280 | 0x03, 22, |
| 281 | 0x00, 0x00, // ES_ID |
| 282 | 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag |
| 283 | |
| 284 | 0x04, 17, |
| 285 | 0x40, // Audio ISO/IEC 14496-3 |
| 286 | 0x00, 0x00, 0x00, 0x00, |
| 287 | 0x00, 0x00, 0x00, 0x00, |
| 288 | 0x00, 0x00, 0x00, 0x00, |
| 289 | |
| 290 | 0x05, 2, |
| 291 | // AudioSpecificInfo follows |
| 292 | }; |
| 293 | |
| 294 | sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + config->size()); |
| 295 | uint8_t *dst = csd->data(); |
| 296 | *dst++ = 0x03; |
| 297 | *dst++ = 20 + config->size(); |
| 298 | *dst++ = 0x00; // ES_ID |
| 299 | *dst++ = 0x00; |
| 300 | *dst++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag |
| 301 | *dst++ = 0x04; |
| 302 | *dst++ = 15 + config->size(); |
| 303 | *dst++ = objectType; |
| 304 | for (int i = 0; i < 12; ++i) { *dst++ = 0x00; } |
| 305 | *dst++ = 0x05; |
| 306 | *dst++ = config->size(); |
| 307 | memcpy(dst, config->data(), config->size()); |
| 308 | |
| 309 | // hexdump(csd->data(), csd->size()); |
| 310 | |
| 311 | return csd; |
| 312 | } |
| 313 | |
Andreas Huber | a979ad6 | 2010-08-19 10:56:15 -0700 | [diff] [blame] | 314 | static size_t GetSizeWidth(size_t x) { |
| 315 | size_t n = 1; |
| 316 | while (x > 127) { |
| 317 | ++n; |
| 318 | x >>= 7; |
| 319 | } |
| 320 | return n; |
| 321 | } |
| 322 | |
| 323 | static uint8_t *EncodeSize(uint8_t *dst, size_t x) { |
| 324 | while (x > 127) { |
| 325 | *dst++ = (x & 0x7f) | 0x80; |
| 326 | x >>= 7; |
| 327 | } |
| 328 | *dst++ = x; |
| 329 | return dst; |
| 330 | } |
| 331 | |
| 332 | static bool ExtractDimensionsFromVOLHeader( |
| 333 | const sp<ABuffer> &config, int32_t *width, int32_t *height) { |
| 334 | *width = 0; |
| 335 | *height = 0; |
| 336 | |
| 337 | const uint8_t *ptr = config->data(); |
| 338 | size_t offset = 0; |
| 339 | bool foundVOL = false; |
| 340 | while (offset + 3 < config->size()) { |
| 341 | if (memcmp("\x00\x00\x01", &ptr[offset], 3) |
| 342 | || (ptr[offset + 3] & 0xf0) != 0x20) { |
| 343 | ++offset; |
| 344 | continue; |
| 345 | } |
| 346 | |
| 347 | foundVOL = true; |
| 348 | break; |
| 349 | } |
| 350 | |
| 351 | if (!foundVOL) { |
| 352 | return false; |
| 353 | } |
| 354 | |
| 355 | ABitReader br(&ptr[offset + 4], config->size() - offset - 4); |
| 356 | br.skipBits(1); // random_accessible_vol |
| 357 | unsigned video_object_type_indication = br.getBits(8); |
| 358 | |
| 359 | CHECK_NE(video_object_type_indication, |
| 360 | 0x21u /* Fine Granularity Scalable */); |
| 361 | |
| 362 | unsigned video_object_layer_verid; |
| 363 | unsigned video_object_layer_priority; |
| 364 | if (br.getBits(1)) { |
| 365 | video_object_layer_verid = br.getBits(4); |
| 366 | video_object_layer_priority = br.getBits(3); |
| 367 | } |
| 368 | unsigned aspect_ratio_info = br.getBits(4); |
| 369 | if (aspect_ratio_info == 0x0f /* extended PAR */) { |
| 370 | br.skipBits(8); // par_width |
| 371 | br.skipBits(8); // par_height |
| 372 | } |
| 373 | if (br.getBits(1)) { // vol_control_parameters |
| 374 | br.skipBits(2); // chroma_format |
| 375 | br.skipBits(1); // low_delay |
| 376 | if (br.getBits(1)) { // vbv_parameters |
Andreas Huber | 77034e6 | 2011-01-18 11:19:13 -0800 | [diff] [blame] | 377 | br.skipBits(15); // first_half_bit_rate |
| 378 | CHECK(br.getBits(1)); // marker_bit |
| 379 | br.skipBits(15); // latter_half_bit_rate |
| 380 | CHECK(br.getBits(1)); // marker_bit |
| 381 | br.skipBits(15); // first_half_vbv_buffer_size |
| 382 | CHECK(br.getBits(1)); // marker_bit |
| 383 | br.skipBits(3); // latter_half_vbv_buffer_size |
| 384 | br.skipBits(11); // first_half_vbv_occupancy |
| 385 | CHECK(br.getBits(1)); // marker_bit |
| 386 | br.skipBits(15); // latter_half_vbv_occupancy |
| 387 | CHECK(br.getBits(1)); // marker_bit |
Andreas Huber | a979ad6 | 2010-08-19 10:56:15 -0700 | [diff] [blame] | 388 | } |
| 389 | } |
| 390 | unsigned video_object_layer_shape = br.getBits(2); |
| 391 | CHECK_EQ(video_object_layer_shape, 0x00u /* rectangular */); |
| 392 | |
| 393 | CHECK(br.getBits(1)); // marker_bit |
| 394 | unsigned vop_time_increment_resolution = br.getBits(16); |
| 395 | CHECK(br.getBits(1)); // marker_bit |
| 396 | |
| 397 | if (br.getBits(1)) { // fixed_vop_rate |
| 398 | // range [0..vop_time_increment_resolution) |
| 399 | |
| 400 | // vop_time_increment_resolution |
| 401 | // 2 => 0..1, 1 bit |
| 402 | // 3 => 0..2, 2 bits |
| 403 | // 4 => 0..3, 2 bits |
| 404 | // 5 => 0..4, 3 bits |
| 405 | // ... |
| 406 | |
| 407 | CHECK_GT(vop_time_increment_resolution, 0u); |
| 408 | --vop_time_increment_resolution; |
| 409 | |
| 410 | unsigned numBits = 0; |
| 411 | while (vop_time_increment_resolution > 0) { |
| 412 | ++numBits; |
| 413 | vop_time_increment_resolution >>= 1; |
| 414 | } |
| 415 | |
| 416 | br.skipBits(numBits); // fixed_vop_time_increment |
| 417 | } |
| 418 | |
| 419 | CHECK(br.getBits(1)); // marker_bit |
| 420 | unsigned video_object_layer_width = br.getBits(13); |
| 421 | CHECK(br.getBits(1)); // marker_bit |
| 422 | unsigned video_object_layer_height = br.getBits(13); |
| 423 | CHECK(br.getBits(1)); // marker_bit |
| 424 | |
| 425 | unsigned interlaced = br.getBits(1); |
| 426 | |
| 427 | *width = video_object_layer_width; |
| 428 | *height = video_object_layer_height; |
| 429 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 430 | LOGI("VOL dimensions = %dx%d", *width, *height); |
Andreas Huber | a979ad6 | 2010-08-19 10:56:15 -0700 | [diff] [blame] | 431 | |
| 432 | return true; |
| 433 | } |
| 434 | |
| 435 | sp<ABuffer> MakeMPEG4VideoCodecSpecificData( |
| 436 | const char *params, int32_t *width, int32_t *height) { |
| 437 | *width = 0; |
| 438 | *height = 0; |
| 439 | |
| 440 | AString val; |
| 441 | CHECK(GetAttribute(params, "config", &val)); |
| 442 | |
| 443 | sp<ABuffer> config = decodeHex(val); |
| 444 | CHECK(config != NULL); |
| 445 | |
| 446 | if (!ExtractDimensionsFromVOLHeader(config, width, height)) { |
| 447 | return NULL; |
| 448 | } |
| 449 | |
| 450 | size_t len1 = config->size() + GetSizeWidth(config->size()) + 1; |
| 451 | size_t len2 = len1 + GetSizeWidth(len1) + 1 + 13; |
| 452 | size_t len3 = len2 + GetSizeWidth(len2) + 1 + 3; |
| 453 | |
| 454 | sp<ABuffer> csd = new ABuffer(len3); |
| 455 | uint8_t *dst = csd->data(); |
| 456 | *dst++ = 0x03; |
| 457 | dst = EncodeSize(dst, len2 + 3); |
| 458 | *dst++ = 0x00; // ES_ID |
| 459 | *dst++ = 0x00; |
| 460 | *dst++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag |
| 461 | |
| 462 | *dst++ = 0x04; |
| 463 | dst = EncodeSize(dst, len1 + 13); |
| 464 | *dst++ = 0x01; // Video ISO/IEC 14496-2 Simple Profile |
| 465 | for (size_t i = 0; i < 12; ++i) { |
| 466 | *dst++ = 0x00; |
| 467 | } |
| 468 | |
| 469 | *dst++ = 0x05; |
| 470 | dst = EncodeSize(dst, config->size()); |
| 471 | memcpy(dst, config->data(), config->size()); |
| 472 | dst += config->size(); |
| 473 | |
| 474 | // hexdump(csd->data(), csd->size()); |
| 475 | |
| 476 | return csd; |
| 477 | } |
| 478 | |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 479 | static bool GetClockRate(const AString &desc, uint32_t *clockRate) { |
| 480 | ssize_t slashPos = desc.find("/"); |
| 481 | if (slashPos < 0) { |
| 482 | return false; |
| 483 | } |
| 484 | |
| 485 | const char *s = desc.c_str() + slashPos + 1; |
| 486 | |
| 487 | char *end; |
| 488 | unsigned long x = strtoul(s, &end, 10); |
| 489 | |
| 490 | if (end == s || (*end != '\0' && *end != '/')) { |
| 491 | return false; |
| 492 | } |
| 493 | |
| 494 | *clockRate = x; |
| 495 | |
| 496 | return true; |
| 497 | } |
| 498 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 499 | APacketSource::APacketSource( |
| 500 | const sp<ASessionDescription> &sessionDesc, size_t index) |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 501 | : mInitCheck(NO_INIT), |
| 502 | mFormat(new MetaData), |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 503 | mEOSResult(OK), |
Andreas Huber | 38285db | 2010-10-08 12:06:27 -0700 | [diff] [blame] | 504 | mIsAVC(false), |
| 505 | mScanForIDR(true), |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 506 | mRTPTimeBase(0), |
| 507 | mNormalPlayTimeBaseUs(0), |
| 508 | mLastNormalPlayTimeUs(0) { |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 509 | unsigned long PT; |
| 510 | AString desc; |
| 511 | AString params; |
| 512 | sessionDesc->getFormatType(index, &PT, &desc, ¶ms); |
| 513 | |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 514 | CHECK(GetClockRate(desc, &mClockRate)); |
| 515 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 516 | int64_t durationUs; |
| 517 | if (sessionDesc->getDurationUs(&durationUs)) { |
| 518 | mFormat->setInt64(kKeyDuration, durationUs); |
| 519 | } else { |
| 520 | mFormat->setInt64(kKeyDuration, 60 * 60 * 1000000ll); |
| 521 | } |
| 522 | |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 523 | mInitCheck = OK; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 524 | if (!strncmp(desc.c_str(), "H264/", 5)) { |
Andreas Huber | 38285db | 2010-10-08 12:06:27 -0700 | [diff] [blame] | 525 | mIsAVC = true; |
| 526 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 527 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC); |
| 528 | |
| 529 | int32_t width, height; |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 530 | if (!sessionDesc->getDimensions(index, PT, &width, &height)) { |
Andreas Huber | eef3c33 | 2010-08-19 10:39:47 -0700 | [diff] [blame] | 531 | width = -1; |
| 532 | height = -1; |
| 533 | } |
| 534 | |
| 535 | int32_t encWidth, encHeight; |
| 536 | sp<ABuffer> codecSpecificData = |
| 537 | MakeAVCCodecSpecificData(params.c_str(), &encWidth, &encHeight); |
| 538 | |
| 539 | if (codecSpecificData != NULL) { |
| 540 | if (width < 0) { |
| 541 | // If no explicit width/height given in the sdp, use the dimensions |
| 542 | // extracted from the first sequence parameter set. |
| 543 | width = encWidth; |
| 544 | height = encHeight; |
| 545 | } |
| 546 | |
| 547 | mFormat->setData( |
| 548 | kKeyAVCC, 0, |
| 549 | codecSpecificData->data(), codecSpecificData->size()); |
| 550 | } else if (width < 0) { |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 551 | mInitCheck = ERROR_UNSUPPORTED; |
| 552 | return; |
| 553 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 554 | |
| 555 | mFormat->setInt32(kKeyWidth, width); |
| 556 | mFormat->setInt32(kKeyHeight, height); |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 557 | } else if (!strncmp(desc.c_str(), "H263-2000/", 10) |
| 558 | || !strncmp(desc.c_str(), "H263-1998/", 10)) { |
| 559 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 560 | |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 561 | int32_t width, height; |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 562 | if (!sessionDesc->getDimensions(index, PT, &width, &height)) { |
| 563 | mInitCheck = ERROR_UNSUPPORTED; |
| 564 | return; |
| 565 | } |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 566 | |
| 567 | mFormat->setInt32(kKeyWidth, width); |
| 568 | mFormat->setInt32(kKeyHeight, height); |
| 569 | } else if (!strncmp(desc.c_str(), "MP4A-LATM/", 10)) { |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 570 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC); |
| 571 | |
| 572 | int32_t sampleRate, numChannels; |
| 573 | ASessionDescription::ParseFormatDesc( |
| 574 | desc.c_str(), &sampleRate, &numChannels); |
| 575 | |
| 576 | mFormat->setInt32(kKeySampleRate, sampleRate); |
| 577 | mFormat->setInt32(kKeyChannelCount, numChannels); |
| 578 | |
| 579 | sp<ABuffer> codecSpecificData = |
| 580 | MakeAACCodecSpecificData(params.c_str()); |
| 581 | |
| 582 | mFormat->setData( |
| 583 | kKeyESDS, 0, |
| 584 | codecSpecificData->data(), codecSpecificData->size()); |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 585 | } else if (!strncmp(desc.c_str(), "AMR/", 4)) { |
| 586 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_NB); |
| 587 | |
| 588 | int32_t sampleRate, numChannels; |
| 589 | ASessionDescription::ParseFormatDesc( |
| 590 | desc.c_str(), &sampleRate, &numChannels); |
| 591 | |
| 592 | mFormat->setInt32(kKeySampleRate, sampleRate); |
| 593 | mFormat->setInt32(kKeyChannelCount, numChannels); |
| 594 | |
| 595 | if (sampleRate != 8000 || numChannels != 1) { |
| 596 | mInitCheck = ERROR_UNSUPPORTED; |
| 597 | } |
| 598 | } else if (!strncmp(desc.c_str(), "AMR-WB/", 7)) { |
| 599 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_WB); |
| 600 | |
| 601 | int32_t sampleRate, numChannels; |
| 602 | ASessionDescription::ParseFormatDesc( |
| 603 | desc.c_str(), &sampleRate, &numChannels); |
| 604 | |
| 605 | mFormat->setInt32(kKeySampleRate, sampleRate); |
| 606 | mFormat->setInt32(kKeyChannelCount, numChannels); |
| 607 | |
| 608 | if (sampleRate != 16000 || numChannels != 1) { |
| 609 | mInitCheck = ERROR_UNSUPPORTED; |
| 610 | } |
Andreas Huber | a979ad6 | 2010-08-19 10:56:15 -0700 | [diff] [blame] | 611 | } else if (!strncmp(desc.c_str(), "MP4V-ES/", 8)) { |
| 612 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4); |
| 613 | |
| 614 | int32_t width, height; |
| 615 | if (!sessionDesc->getDimensions(index, PT, &width, &height)) { |
| 616 | width = -1; |
| 617 | height = -1; |
| 618 | } |
| 619 | |
| 620 | int32_t encWidth, encHeight; |
| 621 | sp<ABuffer> codecSpecificData = |
| 622 | MakeMPEG4VideoCodecSpecificData( |
| 623 | params.c_str(), &encWidth, &encHeight); |
| 624 | |
| 625 | if (codecSpecificData != NULL) { |
| 626 | mFormat->setData( |
| 627 | kKeyESDS, 0, |
| 628 | codecSpecificData->data(), codecSpecificData->size()); |
| 629 | |
| 630 | if (width < 0) { |
| 631 | width = encWidth; |
| 632 | height = encHeight; |
| 633 | } |
| 634 | } else if (width < 0) { |
| 635 | mInitCheck = ERROR_UNSUPPORTED; |
| 636 | return; |
| 637 | } |
| 638 | |
| 639 | mFormat->setInt32(kKeyWidth, width); |
| 640 | mFormat->setInt32(kKeyHeight, height); |
Andreas Huber | 0407269 | 2011-02-15 10:39:48 -0800 | [diff] [blame] | 641 | } else if (!strncasecmp(desc.c_str(), "mpeg4-generic/", 14)) { |
Andreas Huber | e536f80 | 2010-08-31 14:25:36 -0700 | [diff] [blame] | 642 | AString val; |
| 643 | if (!GetAttribute(params.c_str(), "mode", &val) |
| 644 | || (strcasecmp(val.c_str(), "AAC-lbr") |
| 645 | && strcasecmp(val.c_str(), "AAC-hbr"))) { |
| 646 | mInitCheck = ERROR_UNSUPPORTED; |
| 647 | return; |
| 648 | } |
| 649 | |
| 650 | mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC); |
| 651 | |
| 652 | int32_t sampleRate, numChannels; |
| 653 | ASessionDescription::ParseFormatDesc( |
| 654 | desc.c_str(), &sampleRate, &numChannels); |
| 655 | |
| 656 | mFormat->setInt32(kKeySampleRate, sampleRate); |
| 657 | mFormat->setInt32(kKeyChannelCount, numChannels); |
| 658 | |
| 659 | sp<ABuffer> codecSpecificData = |
| 660 | MakeAACCodecSpecificData2(params.c_str()); |
| 661 | |
| 662 | mFormat->setData( |
| 663 | kKeyESDS, 0, |
| 664 | codecSpecificData->data(), codecSpecificData->size()); |
Andreas Huber | b672373 | 2011-02-22 16:25:00 -0800 | [diff] [blame] | 665 | } else if (ARawAudioAssembler::Supports(desc.c_str())) { |
| 666 | ARawAudioAssembler::MakeFormat(desc.c_str(), mFormat); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 667 | } else { |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 668 | mInitCheck = ERROR_UNSUPPORTED; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 669 | } |
| 670 | } |
| 671 | |
| 672 | APacketSource::~APacketSource() { |
| 673 | } |
| 674 | |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 675 | status_t APacketSource::initCheck() const { |
| 676 | return mInitCheck; |
| 677 | } |
| 678 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 679 | status_t APacketSource::start(MetaData *params) { |
| 680 | return OK; |
| 681 | } |
| 682 | |
| 683 | status_t APacketSource::stop() { |
| 684 | return OK; |
| 685 | } |
| 686 | |
| 687 | sp<MetaData> APacketSource::getFormat() { |
| 688 | return mFormat; |
| 689 | } |
| 690 | |
| 691 | status_t APacketSource::read( |
| 692 | MediaBuffer **out, const ReadOptions *) { |
| 693 | *out = NULL; |
| 694 | |
| 695 | Mutex::Autolock autoLock(mLock); |
| 696 | while (mEOSResult == OK && mBuffers.empty()) { |
| 697 | mCondition.wait(mLock); |
| 698 | } |
| 699 | |
| 700 | if (!mBuffers.empty()) { |
| 701 | const sp<ABuffer> buffer = *mBuffers.begin(); |
| 702 | |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 703 | updateNormalPlayTime_l(buffer); |
| 704 | |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 705 | MediaBuffer *mediaBuffer = new MediaBuffer(buffer->size()); |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 706 | |
Andreas Huber | f88f844 | 2010-08-10 11:18:36 -0700 | [diff] [blame] | 707 | int64_t timeUs; |
| 708 | CHECK(buffer->meta()->findInt64("timeUs", &timeUs)); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 709 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 710 | mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs); |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 711 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 712 | memcpy(mediaBuffer->data(), buffer->data(), buffer->size()); |
| 713 | *out = mediaBuffer; |
| 714 | |
| 715 | mBuffers.erase(mBuffers.begin()); |
| 716 | return OK; |
| 717 | } |
| 718 | |
| 719 | return mEOSResult; |
| 720 | } |
| 721 | |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 722 | void APacketSource::updateNormalPlayTime_l(const sp<ABuffer> &buffer) { |
| 723 | uint32_t rtpTime; |
| 724 | CHECK(buffer->meta()->findInt32("rtp-time", (int32_t *)&rtpTime)); |
| 725 | |
| 726 | mLastNormalPlayTimeUs = |
| 727 | (((double)rtpTime - (double)mRTPTimeBase) / mClockRate) |
| 728 | * 1000000ll |
| 729 | + mNormalPlayTimeBaseUs; |
| 730 | } |
| 731 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 732 | void APacketSource::queueAccessUnit(const sp<ABuffer> &buffer) { |
| 733 | int32_t damaged; |
| 734 | if (buffer->meta()->findInt32("damaged", &damaged) && damaged) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 735 | LOGV("discarding damaged AU"); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 736 | return; |
| 737 | } |
| 738 | |
Andreas Huber | 38285db | 2010-10-08 12:06:27 -0700 | [diff] [blame] | 739 | if (mScanForIDR && mIsAVC) { |
| 740 | // This pretty piece of code ensures that the first access unit |
| 741 | // fed to the decoder after stream-start or seek is guaranteed to |
| 742 | // be an IDR frame. This is to workaround limitations of a certain |
| 743 | // hardware h.264 decoder that requires this to be the case. |
| 744 | |
| 745 | if (!IsIDR(buffer)) { |
| 746 | LOGV("skipping AU while scanning for next IDR frame."); |
| 747 | return; |
| 748 | } |
| 749 | |
| 750 | mScanForIDR = false; |
| 751 | } |
| 752 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 753 | Mutex::Autolock autoLock(mLock); |
| 754 | mBuffers.push_back(buffer); |
| 755 | mCondition.signal(); |
| 756 | } |
| 757 | |
| 758 | void APacketSource::signalEOS(status_t result) { |
| 759 | CHECK(result != OK); |
| 760 | |
| 761 | Mutex::Autolock autoLock(mLock); |
| 762 | mEOSResult = result; |
| 763 | mCondition.signal(); |
| 764 | } |
| 765 | |
Andreas Huber | e0dd7d3 | 2010-08-24 14:33:58 -0700 | [diff] [blame] | 766 | void APacketSource::flushQueue() { |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 767 | Mutex::Autolock autoLock(mLock); |
Andreas Huber | e0dd7d3 | 2010-08-24 14:33:58 -0700 | [diff] [blame] | 768 | mBuffers.clear(); |
Andreas Huber | 38285db | 2010-10-08 12:06:27 -0700 | [diff] [blame] | 769 | |
| 770 | mScanForIDR = true; |
Andreas Huber | 57648e4 | 2010-08-04 10:14:30 -0700 | [diff] [blame] | 771 | } |
| 772 | |
Andreas Huber | eeb97d9 | 2010-08-27 13:29:08 -0700 | [diff] [blame] | 773 | int64_t APacketSource::getNormalPlayTimeUs() { |
| 774 | Mutex::Autolock autoLock(mLock); |
| 775 | return mLastNormalPlayTimeUs; |
| 776 | } |
| 777 | |
| 778 | void APacketSource::setNormalPlayTimeMapping( |
| 779 | uint32_t rtpTime, int64_t normalPlayTimeUs) { |
| 780 | Mutex::Autolock autoLock(mLock); |
| 781 | |
| 782 | mRTPTimeBase = rtpTime; |
| 783 | mNormalPlayTimeBaseUs = normalPlayTimeUs; |
| 784 | } |
| 785 | |
Andreas Huber | 4d8f66b | 2010-09-01 15:05:28 -0700 | [diff] [blame] | 786 | int64_t APacketSource::getQueueDurationUs(bool *eos) { |
| 787 | Mutex::Autolock autoLock(mLock); |
| 788 | |
| 789 | *eos = (mEOSResult != OK); |
| 790 | |
| 791 | if (mBuffers.size() < 2) { |
| 792 | return 0; |
| 793 | } |
| 794 | |
| 795 | const sp<ABuffer> first = *mBuffers.begin(); |
| 796 | const sp<ABuffer> last = *--mBuffers.end(); |
| 797 | |
| 798 | int64_t firstTimeUs; |
| 799 | CHECK(first->meta()->findInt64("timeUs", &firstTimeUs)); |
| 800 | |
| 801 | int64_t lastTimeUs; |
| 802 | CHECK(last->meta()->findInt64("timeUs", &lastTimeUs)); |
| 803 | |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 804 | if (lastTimeUs < firstTimeUs) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 805 | LOGE("Huh? Time moving backwards? %lld > %lld", |
| 806 | firstTimeUs, lastTimeUs); |
| 807 | |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 808 | return 0; |
| 809 | } |
Andreas Huber | 4d8f66b | 2010-09-01 15:05:28 -0700 | [diff] [blame] | 810 | |
| 811 | return lastTimeUs - firstTimeUs; |
| 812 | } |
| 813 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 814 | } // namespace android |