Java Code Examples for android.media.MediaMuxer#addTrack()

The following examples show how to use android.media.MediaMuxer#addTrack() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AudioUtil.java    From VideoProcessor with Apache License 2.0 5 votes vote down vote up 
/**
 * 去掉视频的音轨
 */
public static void removeAudioTrack(String videoPath, String outPath) throws IOException {
    MediaExtractor videoExtractor = new MediaExtractor();
    videoExtractor.setDataSource(videoPath);
    try {
        int videoTrack = VideoUtil.selectTrack(videoExtractor, false);

        videoExtractor.selectTrack(videoTrack);
        MediaFormat videoFormat = videoExtractor.getTrackFormat(videoTrack);

        MediaMuxer mediaMuxer = new MediaMuxer(outPath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
        int muxerVideoTrackIndex = mediaMuxer.addTrack(videoFormat);
        mediaMuxer.start();

        MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
        //写视频
        int maxBufferSize = videoFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
        ByteBuffer videoBuffer = ByteBuffer.allocateDirect(maxBufferSize);
        while (true) {
            long sampleTimeUs = videoExtractor.getSampleTime();
            if (sampleTimeUs == -1) {
                break;
            }
            int flags = videoExtractor.getSampleFlags();
            int size = videoExtractor.readSampleData(videoBuffer, 0);
            info.presentationTimeUs = sampleTimeUs;
            info.flags = flags;
            info.size = size;
            mediaMuxer.writeSampleData(muxerVideoTrackIndex, videoBuffer, info);
            videoExtractor.advance();
        }
        mediaMuxer.stop();
        mediaMuxer.release();
    } finally {
        videoExtractor.release();
    }
}
Example 2
Source File: StrengthenMp4MuxStore.java    From AAVT with Apache License 2.0 5 votes vote down vote up 
@Override
public int addTrack(MediaFormat mediaFormat) {
    int ret=-1;
    synchronized (Lock){
        if(!muxStarted){
            if(audioTrack==-1&&videoTrack==-1){
                try {
                    mMuxer=new MediaMuxer(path,MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
                } catch (IOException e) {
                    e.printStackTrace();
                    AvLog.e("create MediaMuxer failed:"+e.getMessage());
                }
            }
            String mime=mediaFormat.getString(MediaFormat.KEY_MIME);
            if(mime.startsWith("audio")){
                audioTrack=mMuxer.addTrack(mediaFormat);
                ret=audioTrack;
            }else if(mime.startsWith("video")){
                videoTrack=mMuxer.addTrack(mediaFormat);
                ret=videoTrack;
            }
            startMux();
        }
    }
    return ret;
}
Example 3
Source File: DownloadRedditVideoService.java    From Infinity-For-Reddit with GNU Affero General Public License v3.0 4 votes vote down vote up 
private boolean muxVideoAndAudio(String videoFilePath, String audioFilePath, String outputFilePath) {
    try {
        File file = new File(outputFilePath);
        file.createNewFile();
        MediaExtractor videoExtractor = new MediaExtractor();
        videoExtractor.setDataSource(videoFilePath);
        MediaExtractor audioExtractor = new MediaExtractor();
        audioExtractor.setDataSource(audioFilePath);
        MediaMuxer muxer = new MediaMuxer(outputFilePath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);

        videoExtractor.selectTrack(0);
        MediaFormat videoFormat = videoExtractor.getTrackFormat(0);
        int videoTrack = muxer.addTrack(videoFormat);

        audioExtractor.selectTrack(0);
        MediaFormat audioFormat = audioExtractor.getTrackFormat(0);
        int audioTrack = muxer.addTrack(audioFormat);
        boolean sawEOS = false;
        int offset = 100;
        int sampleSize = 2048 * 1024;
        ByteBuffer videoBuf = ByteBuffer.allocate(sampleSize);
        ByteBuffer audioBuf = ByteBuffer.allocate(sampleSize);
        MediaCodec.BufferInfo videoBufferInfo = new MediaCodec.BufferInfo();
        MediaCodec.BufferInfo audioBufferInfo = new MediaCodec.BufferInfo();

        videoExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
        audioExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);

        muxer.start();

        while (!sawEOS) {
            videoBufferInfo.offset = offset;
            videoBufferInfo.size = videoExtractor.readSampleData(videoBuf, offset);

            if (videoBufferInfo.size < 0 || audioBufferInfo.size < 0) {
                sawEOS = true;
                videoBufferInfo.size = 0;
            } else {
                videoBufferInfo.presentationTimeUs = videoExtractor.getSampleTime();
                videoBufferInfo.flags = videoExtractor.getSampleFlags();
                muxer.writeSampleData(videoTrack, videoBuf, videoBufferInfo);
                videoExtractor.advance();
            }
        }

        boolean sawEOS2 = false;
        while (!sawEOS2) {
            audioBufferInfo.offset = offset;
            audioBufferInfo.size = audioExtractor.readSampleData(audioBuf, offset);

            if (videoBufferInfo.size < 0 || audioBufferInfo.size < 0) {
                sawEOS2 = true;
                audioBufferInfo.size = 0;
            } else {
                audioBufferInfo.presentationTimeUs = audioExtractor.getSampleTime();
                audioBufferInfo.flags = audioExtractor.getSampleFlags();
                muxer.writeSampleData(audioTrack, audioBuf, audioBufferInfo);
                audioExtractor.advance();

            }
        }

        try {
            muxer.stop();
            muxer.release();
        } catch (IllegalStateException ignore) {}
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }

    return true;
}
Example 4
Source File: MainActivity.java    From Android with Apache License 2.0 4 votes vote down vote up 
protected boolean process() throws IOException {

        mMediaExtractor = new MediaExtractor();          
        mMediaExtractor.setDataSource(SDCARD_PATH+"/input.mp4");                
                
        int mVideoTrackIndex = -1;
        int framerate = 0;
        for(int i = 0; i < mMediaExtractor.getTrackCount(); i++) {
            MediaFormat format = mMediaExtractor.getTrackFormat(i);
            String mime = format.getString(MediaFormat.KEY_MIME);
            if(!mime.startsWith("video/")) {                
                continue;
            }
            framerate = format.getInteger(MediaFormat.KEY_FRAME_RATE);            
            mMediaExtractor.selectTrack(i);
            mMediaMuxer = new MediaMuxer(SDCARD_PATH+"/ouput.mp4", OutputFormat.MUXER_OUTPUT_MPEG_4);
            mVideoTrackIndex = mMediaMuxer.addTrack(format);  
            mMediaMuxer.start();
        }
        
        if(mMediaMuxer == null) {
            return false;
        }
        
        BufferInfo info = new BufferInfo();
        info.presentationTimeUs = 0;
        ByteBuffer buffer = ByteBuffer.allocate(500*1024);        
        while(true) {
            int sampleSize = mMediaExtractor.readSampleData(buffer, 0);
            if(sampleSize < 0) {
                break;
            }
            mMediaExtractor.advance();
            info.offset = 0;
            info.size = sampleSize;
            info.flags = MediaCodec.BUFFER_FLAG_SYNC_FRAME;        
            info.presentationTimeUs += 1000*1000/framerate;
            mMediaMuxer.writeSampleData(mVideoTrackIndex,buffer,info);
        }

        mMediaExtractor.release();
        
        mMediaMuxer.stop();
        mMediaMuxer.release();
        
        return true;
    }