Android/frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge "MediaMuxer sample code update, no functional change" into jb-mr2-dev

Browse Source
This commit is contained in:
ztenghui
2013-05-31 18:05:43 +00:00
committed by Android (Google) Code Review
parent b5a9e73154 34a5b011cd
commit 4f0002e6de
1 changed files with 17 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
media/java/android/media/MediaMuxer.java
View File

@@ -35,20 +35,29 @@ import java.util.Map;
* It is generally used like this:
*
* <pre>
* MediaMuxer muxer = new MediaMuxer(...);
* MediaMuxer muxer = new MediaMuxer("temp.mp4", OutputFormat.MUXER_OUTPUT_MPEG_4);
* // More often, the MediaFormat will be retrieved from MediaCodec.getOutputFormat()
* // or MediaExtractor.getTrackFormat().
* MediaFormat audioFormat = new MediaFormat(...);
* MediaFormat videoFormat = new MediaFormat(...);
* int audioTrackIndex = muxer.addTrack(audioFormat);
* int videoTrackIndex = muxer.addTrack(videoFormat);
* ByteBuffer inputBuffer = ByteBuffer.allocate(...);
* ByteBuffer inputBuffer = ByteBuffer.allocate(bufferSize);
* boolean finished = false;
* BufferInfo bufferInfo = new BufferInfo();
*
* muxer.start();
* while(inputBuffer has new data) {
* if (new data is audio sample) {
* muxer.writeSampleData(audioTrackIndex, inputBuffer, ...);
* } else if (new data is video sample) {
* muxer.writeSampleData(videoTrackIndex, inputBuffer, ...);
* while(!finished) {
* // getInputBuffer() will fill the inputBuffer with one frame of encoded
* // sample from either MediaCodec or MediaExtractor, set isAudioSample to
* // true when the sample is audio data, set up all the fields of bufferInfo,
* // and return true if there are no more samples.
* finished = getInputBuffer(inputBuffer, isAudioSample, bufferInfo);
* if (!finished) {
* int currentTrackIndex = isAudioSample ? audioTrackIndex : videoTrackIndex;
* muxer.writeSampleData(currentTrackIndex, inputBuffer, bufferInfo);
* }
* }
* };
* muxer.stop();
* muxer.release();
* </pre>