Use MP4Muxer from jcodec on API level 16-18 and streamable #1
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Currently transcoding using ByteBuffer instead of SurfaceTexture is very difficult, and there would be device specific bugs. For note, use qt-faststart for streaming mp4. |
changxiangzhong
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Sep 26, 2016
Implement media time trim feature.
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MediaCodec and MediaExtractor is available from API level >= 16 in fact. But MediaMuxer is only available in API level >= 18.
Another problem is "The mp4 file will not be streamable." message printed. It is bug or bad spec of MediaMuxer.cpp.
jcodec does not depend on Android API, and also seems to support streaming.
Below is jcodec's mp4 rewriter for streaming.
https://github.com/jcodec/jcodec/blob/26df5b767473fc93690789743091475a35e5efb7/src/main/java/org/jcodec/movtool/Flattern.java
NOTE:
Because compatibility test suite (CTS) for MediaCodec is first added in Android 4.3 (API 18).
So runtime CTS checker should be implemented for older devices.