diff options
author | James Dong <jdong@google.com> | 2010-08-02 19:13:40 -0700 |
---|---|---|
committer | James Dong <jdong@google.com> | 2010-08-13 18:12:48 -0700 |
commit | e259531ce59ab1f31de5a23124b22536f6a5a767 (patch) | |
tree | 2639bd5aa4057811c3199836cb945e98feb70ac4 /include/media | |
parent | 3053dd2785648c65f558d7e6d3a74a1599409059 (diff) | |
download | frameworks_av-e259531ce59ab1f31de5a23124b22536f6a5a767.zip frameworks_av-e259531ce59ab1f31de5a23124b22536f6a5a767.tar.gz frameworks_av-e259531ce59ab1f31de5a23124b22536f6a5a767.tar.bz2 |
Use audio clock as the reference media clock
o Only do this for realtime applications
o Adjust other track clock based on audio clock
o Assume other track uses wall clock as the media clock
o Use some heuristics to reduce the size of stts box by 2/3.
- also
o Remove one unused key from MetaData.h
Change-Id: Ib9432842627b61795b533508158c25258a527332
Diffstat (limited to 'include/media')
-rw-r--r-- | include/media/stagefright/MPEG4Writer.h | 6 | ||||
-rw-r--r-- | include/media/stagefright/MetaData.h | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/include/media/stagefright/MPEG4Writer.h b/include/media/stagefright/MPEG4Writer.h index 2e1e8d8..be96935 100644 --- a/include/media/stagefright/MPEG4Writer.h +++ b/include/media/stagefright/MPEG4Writer.h @@ -128,6 +128,12 @@ private: // Write the first chunk from the given ChunkInfo. void writeFirstChunk(ChunkInfo* info); + // Adjust other track media clock (presumably wall clock) + // based on audio track media clock with the drift time. + int64_t mDriftTimeUs; + void addDriftTimeUs(int64_t driftTimeUs); + int64_t getDriftTimeUs(); + void lock(); void unlock(); diff --git a/include/media/stagefright/MetaData.h b/include/media/stagefright/MetaData.h index ab1fa4f..43354c2 100644 --- a/include/media/stagefright/MetaData.h +++ b/include/media/stagefright/MetaData.h @@ -86,10 +86,10 @@ enum { // Track authoring progress status // kKeyTrackTimeStatus is used to track progress in elapsed time - // kKeyTrackFrameStatus is used to track progress in authored frames - kKeyTrackFrameStatus = 'tkfm', // int32_t kKeyTrackTimeStatus = 'tktm', // int64_t + kKeyNotRealTime = 'ntrt', // bool (int32_t) + }; enum { |