MPEG4Writer.h revision 2cf9c5073ca3342ee52673ad68763fadd2c2be79
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 382dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual status_t addSource(const sp<MediaSource> &source); 392dec2b5be2056c6d9428897dc672185872d30d17James Dong virtual status_t start(MetaData *param = NULL); 4037187916a486504acaf83bea30147eb5fbf46ae5James Dong virtual status_t stop(); 4137187916a486504acaf83bea30147eb5fbf46ae5James Dong virtual status_t pause(); 422dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual bool reachedEOS(); 43dedf414d3fe2e79ee0aad0f1c82ca16ebd886ff6James Dong virtual status_t dump(int fd, const Vector<String16>& args); 4420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void beginBox(const char *fourcc); 4620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt8(int8_t x); 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt16(int16_t x); 4820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt32(int32_t x); 4920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt64(int64_t x); 5020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeCString(const char *s); 5120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeFourcc(const char *fourcc); 5220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void write(const void *data, size_t size); 5320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void endBox(); 5413aec890216948b0c364f8f92792129d0335f506James Dong uint32_t interleaveDuration() const { return mInterleaveDurationUs; } 5513aec890216948b0c364f8f92792129d0335f506James Dong status_t setInterleaveDuration(uint32_t duration); 568f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t getTimeScale() const { return mTimeScale; } 5720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5807b1bb529a1ae76c46a71b01338c166f9490629dJames Dong status_t setGeoData(int latitudex10000, int longitudex10000); 5986b7f47aa7482424cf8fd248f1315311919be3b0James Dong void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; } 6086b7f47aa7482424cf8fd248f1315311919be3b0James Dong int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; } 6107b1bb529a1ae76c46a71b01338c166f9490629dJames Dong 62693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberprotected: 63693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber virtual ~MPEG4Writer(); 64693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber 6520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberprivate: 6620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber class Track; 6720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 68c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong int mFd; 69674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong status_t mInitCheck; 70b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool mUse4ByteNalLength; 711acfe8649f8169caf2ff098c2dc2de880d9a3760James Dong bool mUse32BitOffset; 72a007e8229fb2be4866c483f9cd6c4af238a2da5eJames Dong bool mIsFileSizeLimitExplicitlyRequested; 73a7d1a2dd776bf356c228785a94ba8e0ff6a2ec7fJames Dong bool mPaused; 74a7d1a2dd776bf356c228785a94ba8e0ff6a2ec7fJames Dong bool mStarted; 75c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mOffset; 7620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber off_t mMdatOffset; 777837c17063a4c50bc856ba59418516fdab731de7James Dong uint8_t *mMoovBoxBuffer; 78c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mMoovBoxBufferOffset; 797837c17063a4c50bc856ba59418516fdab731de7James Dong bool mWriteMoovBoxToMemory; 80c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mFreeBoxOffset; 817837c17063a4c50bc856ba59418516fdab731de7James Dong bool mStreamableFile; 82c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mEstimatedMoovBoxSize; 8313aec890216948b0c364f8f92792129d0335f506James Dong uint32_t mInterleaveDurationUs; 848f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t mTimeScale; 853c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong int64_t mStartTimestampUs; 8607b1bb529a1ae76c46a71b01338c166f9490629dJames Dong int mLatitudex10000; 8707b1bb529a1ae76c46a71b01338c166f9490629dJames Dong int mLongitudex10000; 8807b1bb529a1ae76c46a71b01338c166f9490629dJames Dong bool mAreGeoTagsAvailable; 8986b7f47aa7482424cf8fd248f1315311919be3b0James Dong int32_t mStartTimeOffsetMs; 901c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 9120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex mLock; 9220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 9320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber List<Track *> mTracks; 9420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 95c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong List<off64_t> mBoxes; 9620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 97f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong void setStartTimestampUs(int64_t timeUs); 98f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t getStartTimestampUs(); // Not const 9993d6b102a13afa23bfa80d74c399d93d542e6ad6James Dong status_t startTracks(MetaData *params); 10058ae9c530247668f8af36e30d228c716c226b3d4James Dong size_t numTracks(); 1012dec2b5be2056c6d9428897dc672185872d30d17James Dong int64_t estimateMoovBoxSize(int32_t bitRate); 1023c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong 1031c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct Chunk { 1041c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 1051c9747a4653aec1395c2bd6896c9b87cb5447837James Dong int64_t mTimeStampUs; // Timestamp of the 1st sample 1061c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<MediaBuffer *> mSamples; // Sample data 1071c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1081c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Convenient constructor 109fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong Chunk(): mTrack(NULL), mTimeStampUs(0) {} 110fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong 1111c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples) 1121c9747a4653aec1395c2bd6896c9b87cb5447837James Dong : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) { 1131c9747a4653aec1395c2bd6896c9b87cb5447837James Dong } 1141c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1151c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1161c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct ChunkInfo { 1171c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 1181c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<Chunk> mChunks; // Remaining chunks to be written 11970ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 12070ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong // Previous chunk timestamp that has been written 12170ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong int64_t mPrevChunkTimestampUs; 12270ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 12370ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong // Max time interval between neighboring chunks 12470ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong int64_t mMaxInterChunkDurUs; 12570ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong 1261c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1271c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1281c9747a4653aec1395c2bd6896c9b87cb5447837James Dong bool mIsFirstChunk; 1291c9747a4653aec1395c2bd6896c9b87cb5447837James Dong volatile bool mDone; // Writer thread is done? 1301c9747a4653aec1395c2bd6896c9b87cb5447837James Dong pthread_t mThread; // Thread id for the writer 1311c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<ChunkInfo> mChunkInfos; // Chunk infos 1321c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Condition mChunkReadyCondition; // Signal that chunks are available 1331c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1341c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Writer thread handling 1351c9747a4653aec1395c2bd6896c9b87cb5447837James Dong status_t startWriterThread(); 1361c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void stopWriterThread(); 1371c9747a4653aec1395c2bd6896c9b87cb5447837James Dong static void *ThreadWrapper(void *me); 1381c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void threadFunc(); 1391c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1401c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Buffer a single chunk to be written out later. 1411c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void bufferChunk(const Chunk& chunk); 1421c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1431c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Write all buffered chunks from all tracks 144fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeAllChunks(); 1451c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 146fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Retrieve the proper chunk to write if there is one 147fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Return true if a chunk is found; otherwise, return false. 148fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong bool findChunkToWrite(Chunk *chunk); 1491c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 150fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Actually write the given chunk to the file. 151fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeChunkToFile(Chunk* chunk); 1521c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 153e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // Adjust other track media clock (presumably wall clock) 154e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // based on audio track media clock with the drift time. 155e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t mDriftTimeUs; 156d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong void setDriftTimeUs(int64_t driftTimeUs); 157e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t getDriftTimeUs(); 158e259531ce59ab1f31de5a23124b22536f6a5a767James Dong 159b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Return whether the nal length is 4 bytes or 2 bytes 160b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Only makes sense for H.264/AVC 161b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool useNalLengthFour(); 162b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong 16313aec890216948b0c364f8f92792129d0335f506James Dong void lock(); 16413aec890216948b0c364f8f92792129d0335f506James Dong void unlock(); 16513aec890216948b0c364f8f92792129d0335f506James Dong 16613aec890216948b0c364f8f92792129d0335f506James Dong // Acquire lock before calling these methods 167c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addSample_l(MediaBuffer *buffer); 168c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addLengthPrefixedSample_l(MediaBuffer *buffer); 16920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 170674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong inline size_t write(const void *ptr, size_t size, size_t nmemb); 171d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileSizeLimit(); 1721f90c4b3fda9dbd2824d67fd679f850572f114dcJames Dong bool use32BitFileOffset() const; 173d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileDurationLimit(); 17478a1a286f736888ae7af8860b2c424af0d978848James Dong bool isFileStreamable() const; 175bc07bcc65e91c7aea9713631ae67760dcf1b0286James Dong void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK); 17613f6284305e4b27395a23db7882d670bdb1bcae1James Dong void writeCompositionMatrix(int32_t degrees); 177b21c564ce47041f9dd3ab65e36fed57c4937a42dJames Dong void writeMvhdBox(int64_t durationUs); 178b21c564ce47041f9dd3ab65e36fed57c4937a42dJames Dong void writeMoovBox(int64_t durationUs); 1792cf9c5073ca3342ee52673ad68763fadd2c2be79James Dong void writeFtypBox(MetaData *param); 18007b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeUdtaBox(); 18107b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeGeoDataBox(); 18207b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeLatitude(int degreex10000); 18307b1bb529a1ae76c46a71b01338c166f9490629dJames Dong void writeLongitude(int degreex10000); 18470ccfd44c4bfe95ddecc2df6c3695efc48229d72James Dong void sendSessionSummary(); 1857837c17063a4c50bc856ba59418516fdab731de7James Dong 18620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer(const MPEG4Writer &); 18720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer &operator=(const MPEG4Writer &); 18820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber}; 18920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 19120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#endif // MPEG4_WRITER_H_ 193