MPEG4Writer.h revision acc47642e0f5d962f6289e6ba687fabf68f8312b
120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber/* 220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Copyright (C) 2009 The Android Open Source Project 320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * you may not use this file except in compliance with the License. 620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * You may obtain a copy of the License at 720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 1020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Unless required by applicable law or agreed to in writing, software 1120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * See the License for the specific language governing permissions and 1420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * limitations under the License. 1520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber */ 1620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#ifndef MPEG4_WRITER_H_ 1820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#define MPEG4_WRITER_H_ 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <stdio.h> 2220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 232dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber#include <media/stagefright/MediaWriter.h> 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <utils/List.h> 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <utils/threads.h> 2620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MediaBuffer; 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MediaSource; 3120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MetaData; 3220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 332dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huberclass MPEG4Writer : public MediaWriter { 3420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberpublic: 3520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer(const char *filename); 3630ab66297501757d745b9ae10da61adcd891f497Andreas Huber MPEG4Writer(int fd); 3720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 38acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong // Limitations 39acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong // 1. No more than 2 tracks can be added 40acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong // 2. Only video or audio source can be added 41acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong // 3. No more than one video and/or one audio source can be added. 422dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual status_t addSource(const sp<MediaSource> &source); 43acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong 44acc47642e0f5d962f6289e6ba687fabf68f8312bJames Dong // Returns INVALID_OPERATION if there is no source or track. 452dec2b5be2056c6d9428897dc672185872d30d17James Dong virtual status_t start(MetaData *param = NULL); 468bcc65c753085fe3328592cceda0cf0e8f8b0a45James Dong virtual status_t stop() { return reset(); } 4737187916a486504acaf83bea30147eb5fbf46ae5James Dong virtual status_t pause(); 482dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual bool reachedEOS(); 49dedf414d3fe2e79ee0aad0f1c82ca16ebd886ff6James Dong virtual status_t dump(int fd, const Vector<String16>& args); 5020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void beginBox(const char *fourcc); 5220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt8(int8_t x); 5320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt16(int16_t x); 5420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt32(int32_t x); 5520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt64(int64_t x); 5620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeCString(const char *s); 5720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeFourcc(const char *fourcc); 5820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void write(const void *data, size_t size); 598c460498c028888c533ab442be12b6d4b669b965James Dong inline size_t write(const void *ptr, size_t size, size_t nmemb); 6020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void endBox(); 6113aec890216948b0c364f8f92792129d0335f506James Dong uint32_t interleaveDuration() const { return mInterleaveDurationUs; } 6213aec890216948b0c364f8f92792129d0335f506James Dong status_t setInterleaveDuration(uint32_t duration); 638f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t getTimeScale() const { return mTimeScale; } 6420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6507b1bb529a1ae76c46a71b01338c166f9490629dJames Dong status_t setGeoData(int latitudex10000, int longitudex10000); 6686b7f47aa7482424cf8fd248f1315311919be3b0James Dong void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; } 6786b7f47aa7482424cf8fd248f1315311919be3b0James Dong int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; } 6807b1bb529a1ae76c46a71b01338c166f9490629dJames Dong 69693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberprotected: 70693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber virtual ~MPEG4Writer(); 71693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber 7220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberprivate: 7320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber class Track; 7420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 75c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong int mFd; 76674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong status_t mInitCheck; 77b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool mUse4ByteNalLength; 781acfe8649f8169caf2ff098c2dc2de880d9a3760James Dong bool mUse32BitOffset; 79a007e8229fb2be4866c483f9cd6c4af238a2da5eJames Dong bool mIsFileSizeLimitExplicitlyRequested; 80a7d1a2dd776bf356c228785a94ba8e0ff6a2ec7fJames Dong bool mPaused; 81411ba422e3635d534928ffd81abf54f4f291c739James Dong bool mStarted; // Writer thread + track threads started successfully 82411ba422e3635d534928ffd81abf54f4f291c739James Dong bool mWriterThreadStarted; // Only writer thread started successfully 83c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mOffset; 8420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber off_t mMdatOffset; 857837c17063a4c50bc856ba59418516fdab731de7James Dong uint8_t *mMoovBoxBuffer; 86c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mMoovBoxBufferOffset; 877837c17063a4c50bc856ba59418516fdab731de7James Dong bool mWriteMoovBoxToMemory; 88c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mFreeBoxOffset; 897837c17063a4c50bc856ba59418516fdab731de7James Dong bool mStreamableFile; 90c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mEstimatedMoovBoxSize; 9113aec890216948b0c364f8f92792129d0335f506James Dong uint32_t mInterleaveDurationUs; 928f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t mTimeScale; 933c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong int64_t mStartTimestampUs; 9407b1bb529a1ae76c46a71b01338c166f9490629dJames Dong int mLatitudex10000; 9507b1bb529a1ae76c46a71b01338c166f9490629dJames Dong int mLongitudex10000; 9607b1bb529a1ae76c46a71b01338c166f9490629dJames Dong bool mAreGeoTagsAvailable; 9786b7f47aa7482424cf8fd248f1315311919be3b0James Dong int32_t mStartTimeOffsetMs; 981c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 9920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex mLock; 10020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 10120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber List<Track *> mTracks; 10220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 103c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong List<off64_t> mBoxes; 10420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 105f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong void setStartTimestampUs(int64_t timeUs); 106f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t getStartTimestampUs(); // Not const 10793d6b102a13afa23bfa80d74c399d93d542e6ad6James Dong status_t startTracks(MetaData *params); 10858ae9c530247668f8af36e30d228c716c226b3d4James Dong size_t numTracks(); 1092dec2b5be2056c6d9428897dc672185872d30d17James Dong int64_t estimateMoovBoxSize(int32_t bitRate); 1103c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong 1111c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct Chunk { 1121c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 1131c9747a4653aec1395c2bd6896c9b87cb5447837James Dong int64_t mTimeStampUs; // Timestamp of the 1st sample 1141c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<MediaBuffer *> mSamples; // Sample data 1151c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1161c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Convenient constructor 117fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong Chunk(): mTrack(NULL), mTimeStampUs(0) {} 118fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong 1191c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples) 1201c9747a4653aec1395c2bd6896c9b87cb5447837James Dong : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) { 1211c9747a4653aec1395c2bd6896c9b87cb5447837James Dong } 1221c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1231c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1241c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct ChunkInfo { 1251c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 1261c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<Chunk> mChunks; // Remaining chunks to be written 12770ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 12870ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong // Previous chunk timestamp that has been written 12970ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong int64_t mPrevChunkTimestampUs; 13070ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 13170ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong // Max time interval between neighboring chunks 13270ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong int64_t mMaxInterChunkDurUs; 13370ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 1341c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1351c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1361c9747a4653aec1395c2bd6896c9b87cb5447837James Dong bool mIsFirstChunk; 1371c9747a4653aec1395c2bd6896c9b87cb5447837James Dong volatile bool mDone; // Writer thread is done? 1381c9747a4653aec1395c2bd6896c9b87cb5447837James Dong pthread_t mThread; // Thread id for the writer 1391c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<ChunkInfo> mChunkInfos; // Chunk infos 1401c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Condition mChunkReadyCondition; // Signal that chunks are available 1411c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1421c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Writer thread handling 1431c9747a4653aec1395c2bd6896c9b87cb5447837James Dong status_t startWriterThread(); 1441c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void stopWriterThread(); 1451c9747a4653aec1395c2bd6896c9b87cb5447837James Dong static void *ThreadWrapper(void *me); 1461c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void threadFunc(); 1471c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1481c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Buffer a single chunk to be written out later. 1491c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void bufferChunk(const Chunk& chunk); 1501c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1511c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Write all buffered chunks from all tracks 152fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeAllChunks(); 1531c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 154fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Retrieve the proper chunk to write if there is one 155fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Return true if a chunk is found; otherwise, return false. 156fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong bool findChunkToWrite(Chunk *chunk); 1571c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 158fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Actually write the given chunk to the file. 159fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeChunkToFile(Chunk* chunk); 1601c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 161e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // Adjust other track media clock (presumably wall clock) 162e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // based on audio track media clock with the drift time. 163e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t mDriftTimeUs; 164d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong void setDriftTimeUs(int64_t driftTimeUs); 165e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t getDriftTimeUs(); 166e259531ce59ab1f31de5a23124b22536f6a5a767James Dong 167b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Return whether the nal length is 4 bytes or 2 bytes 168b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Only makes sense for H.264/AVC 169b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool useNalLengthFour(); 170b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong 17113aec890216948b0c364f8f92792129d0335f506James Dong void lock(); 17213aec890216948b0c364f8f92792129d0335f506James Dong void unlock(); 17313aec890216948b0c364f8f92792129d0335f506James Dong 17413aec890216948b0c364f8f92792129d0335f506James Dong // Acquire lock before calling these methods 175c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addSample_l(MediaBuffer *buffer); 176c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addLengthPrefixedSample_l(MediaBuffer *buffer); 17720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 178d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileSizeLimit(); 1791f90c4b3fda9dbd2824d67fd679f850572f114dcJames Dong bool use32BitFileOffset() const; 180d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileDurationLimit(); 18178a1a286f736888ae7af8860b2c424af0d978848James Dong bool isFileStreamable() const; 182bc07bcc65e91c7aea9713631ae67760dcf1b0286James Dong void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK); 18313f6284305e4b27395a23db7882d670bdb1bcae1James Dong void writeCompositionMatrix(int32_t degrees); 184b21c564ce47041f9dd3ab65e36fed57c4937a42dJames Dong void writeMvhdBox(int64_t durationUs); 185b21c564ce47041f9dd3ab65e36fed57c4937a42dJames Dong void writeMoovBox(int64_t durationUs); 1862cf9c5073ca3342ee52673ad68763fadd2c2be79James Dong void writeFtypBox(MetaData *param); 18707b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeUdtaBox(); 18807b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeGeoDataBox(); 18907b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeLatitude(int degreex10000); 19007b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeLongitude(int degreex10000); 19170ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong void sendSessionSummary(); 192411ba422e3635d534928ffd81abf54f4f291c739James Dong void release(); 1938bcc65c753085fe3328592cceda0cf0e8f8b0a45James Dong status_t reset(); 1947837c17063a4c50bc856ba59418516fdab731de7James Dong 195efcdf187baab9ec29e12adcf85e63fe3e6d5aa4dJohannes Carlsson static uint32_t getMpeg4Time(); 196efcdf187baab9ec29e12adcf85e63fe3e6d5aa4dJohannes Carlsson 19720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer(const MPEG4Writer &); 19820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer &operator=(const MPEG4Writer &); 19920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber}; 20020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 20220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#endif // MPEG4_WRITER_H_ 204