使用MediaCodec播放视频

来源：互联网发布：淘宝代理货源要钱吗编辑：程序博客网时间：2024/06/11 17:07
public class MediaCodecPlayer {    private static final String PATH = "/sdcard/a.mp4";    private static MediaExtractor mediaExtractor;    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    public static void codec(Surface surface) {        mediaExtractor = new MediaExtractor();        MediaCodec mediaCodec = null;        try {            mediaExtractor.setDataSource(PATH);            for (int i = 0; i < mediaExtractor.getTrackCount(); i++) {                MediaFormat mediaFormat = mediaExtractor.getTrackFormat(i);                String mime = mediaFormat.getString(MediaFormat.KEY_MIME);                if (mime.startsWith("video")) {                    mediaExtractor.selectTrack(i);                    mediaCodec = MediaCodec.createDecoderByType(mime);                    mediaCodec.setCallback(callback);                    mediaCodec.configure(mediaFormat, surface, null, 0);                    break;                }            }            mediaCodec.start();        } catch (IOException e) {            e.printStackTrace();        }    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    private static MediaCodec.Callback callback = new MediaCodec.Callback() {        @Override        public void onInputBufferAvailable(@NonNull MediaCodec codec, int index) {            ByteBuffer byteBuffer = codec.getInputBuffer(index);            byteBuffer.clear();            int sampleSize = mediaExtractor.readSampleData(byteBuffer, 0);            if (sampleSize < 0) {                codec.queueInputBuffer(index, 0, sampleSize, 0, MediaCodec.BUFFER_FLAG_END_OF_STREAM);            } else {                codec.queueInputBuffer(index, 0, sampleSize, mediaExtractor.getSampleTime(), 0);                mediaExtractor.advance();            }        }        @Override        public void onOutputBufferAvailable(@NonNull MediaCodec codec, int index, @NonNull MediaCodec.BufferInfo info) {            if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {                mediaExtractor.release();                codec.stop();                codec.release();            } else {                codec.releaseOutputBuffer(index, true);            }        }        @Override        public void onError(@NonNull MediaCodec codec, @NonNull MediaCodec.CodecException e) {        }        @Override        public void onOutputFormatChanged(@NonNull MediaCodec codec, @NonNull MediaFormat format) {        }    };}
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