Examples with MediaCodec android.media.MediaCodec used on opensource projects

Example 11 with MediaCodec

use of android.media.MediaCodec in project grafika by google.

the class MoviePlayer method play.

/**
     * Decodes the video stream, sending frames to the surface.
     * <p>
     * Does not return until video playback is complete, or we get a "stop" signal from
     * frameCallback.
     */
public void play() throws IOException {
    MediaExtractor extractor = null;
    MediaCodec decoder = null;
    // file exists so we can throw a better one if it's not there.
    if (!mSourceFile.canRead()) {
        throw new FileNotFoundException("Unable to read " + mSourceFile);
    }
    try {
        extractor = new MediaExtractor();
        extractor.setDataSource(mSourceFile.toString());
        int trackIndex = selectTrack(extractor);
        if (trackIndex < 0) {
            throw new RuntimeException("No video track found in " + mSourceFile);
        }
        extractor.selectTrack(trackIndex);
        MediaFormat format = extractor.getTrackFormat(trackIndex);
        // Create a MediaCodec decoder, and configure it with the MediaFormat from the
        // extractor.  It's very important to use the format from the extractor because
        // it contains a copy of the CSD-0/CSD-1 codec-specific data chunks.
        String mime = format.getString(MediaFormat.KEY_MIME);
        decoder = MediaCodec.createDecoderByType(mime);
        decoder.configure(format, mOutputSurface, null, 0);
        decoder.start();
        doExtract(extractor, trackIndex, decoder, mFrameCallback);
    } finally {
        // release everything we grabbed
        if (decoder != null) {
            decoder.stop();
            decoder.release();
            decoder = null;
        }
        if (extractor != null) {
            extractor.release();
            extractor = null;
        }
    }
}

Example 12 with MediaCodec

use of android.media.MediaCodec in project chromeview by pwnall.

the class WebAudioMediaCodecBridge method decodeAudioFile.

@CalledByNative
private static boolean decodeAudioFile(Context ctx, int nativeMediaCodecBridge, int inputFD, long dataSize) {
    if (dataSize < 0 || dataSize > 0x7fffffff)
        return false;
    MediaExtractor extractor = new MediaExtractor();
    ParcelFileDescriptor encodedFD;
    encodedFD = ParcelFileDescriptor.adoptFd(inputFD);
    try {
        extractor.setDataSource(encodedFD.getFileDescriptor(), 0, dataSize);
    } catch (Exception e) {
        e.printStackTrace();
        encodedFD.detachFd();
        return false;
    }
    if (extractor.getTrackCount() <= 0) {
        encodedFD.detachFd();
        return false;
    }
    MediaFormat format = extractor.getTrackFormat(0);
    int channelCount = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
    int sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
    String mime = format.getString(MediaFormat.KEY_MIME);
    long durationMicroseconds = 0;
    if (format.containsKey(MediaFormat.KEY_DURATION)) {
        try {
            durationMicroseconds = format.getLong(MediaFormat.KEY_DURATION);
        } catch (Exception e) {
            Log.d(LOG_TAG, "Cannot get duration");
        }
    }
    if (DEBUG) {
        Log.d(LOG_TAG, "Tracks: " + extractor.getTrackCount() + " Rate: " + sampleRate + " Channels: " + channelCount + " Mime: " + mime + " Duration: " + durationMicroseconds + " microsec");
    }
    nativeInitializeDestination(nativeMediaCodecBridge, channelCount, sampleRate, durationMicroseconds);
    // Create decoder
    MediaCodec codec = MediaCodec.createDecoderByType(mime);
    codec.configure(format, null, /* surface */
    null, /* crypto */
    0);
    codec.start();
    ByteBuffer[] codecInputBuffers = codec.getInputBuffers();
    ByteBuffer[] codecOutputBuffers = codec.getOutputBuffers();
    // A track must be selected and will be used to read samples.
    extractor.selectTrack(0);
    boolean sawInputEOS = false;
    boolean sawOutputEOS = false;
    // Keep processing until the output is done.
    while (!sawOutputEOS) {
        if (!sawInputEOS) {
            // Input side
            int inputBufIndex = codec.dequeueInputBuffer(TIMEOUT_MICROSECONDS);
            if (inputBufIndex >= 0) {
                ByteBuffer dstBuf = codecInputBuffers[inputBufIndex];
                int sampleSize = extractor.readSampleData(dstBuf, 0);
                long presentationTimeMicroSec = 0;
                if (sampleSize < 0) {
                    sawInputEOS = true;
                    sampleSize = 0;
                } else {
                    presentationTimeMicroSec = extractor.getSampleTime();
                }
                codec.queueInputBuffer(inputBufIndex, 0, /* offset */
                sampleSize, presentationTimeMicroSec, sawInputEOS ? MediaCodec.BUFFER_FLAG_END_OF_STREAM : 0);
                if (!sawInputEOS) {
                    extractor.advance();
                }
            }
        }
        // Output side
        MediaCodec.BufferInfo info = new BufferInfo();
        final int outputBufIndex = codec.dequeueOutputBuffer(info, TIMEOUT_MICROSECONDS);
        if (outputBufIndex >= 0) {
            ByteBuffer buf = codecOutputBuffers[outputBufIndex];
            if (info.size > 0) {
                nativeOnChunkDecoded(nativeMediaCodecBridge, buf, info.size);
            }
            buf.clear();
            codec.releaseOutputBuffer(outputBufIndex, false);
            if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
                sawOutputEOS = true;
            }
        } else if (outputBufIndex == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
            codecOutputBuffers = codec.getOutputBuffers();
        }
    }
    encodedFD.detachFd();
    codec.stop();
    codec.release();
    codec = null;
    return true;
}

Example 13 with MediaCodec

use of android.media.MediaCodec in project platform_frameworks_base by android.

the class AudioTrackDecoder method initMediaCodec.

@Override
protected MediaCodec initMediaCodec(MediaFormat format) {
    MediaCodec mediaCodec;
    try {
        mediaCodec = MediaCodec.createDecoderByType(format.getString(MediaFormat.KEY_MIME));
    } catch (IOException e) {
        throw new RuntimeException("failed to create decoder for " + format.getString(MediaFormat.KEY_MIME), e);
    }
    mediaCodec.configure(format, null, null, 0);
    return mediaCodec;
}

Example 14 with MediaCodec

use of android.media.MediaCodec in project platform_frameworks_base by android.

the class CpuVideoTrackDecoder method initMediaCodec.

@Override
protected MediaCodec initMediaCodec(MediaFormat format) {
    // Find a codec for our video that can output to one of our supported color-spaces
    MediaCodec mediaCodec = findDecoderCodec(format, new int[] { CodecCapabilities.COLOR_Format32bitARGB8888, CodecCapabilities.COLOR_FormatYUV420Planar });
    if (mediaCodec == null) {
        throw new RuntimeException("Could not find a suitable decoder for format: " + format + "!");
    }
    mediaCodec.configure(format, null, null, 0);
    return mediaCodec;
}

Example 15 with MediaCodec

use of android.media.MediaCodec in project platform_frameworks_base by android.

the class GpuVideoTrackDecoder method initMediaCodec.

@Override
protected MediaCodec initMediaCodec(MediaFormat format) {
    MediaCodec mediaCodec;
    try {
        mediaCodec = MediaCodec.createDecoderByType(format.getString(MediaFormat.KEY_MIME));
    } catch (IOException e) {
        throw new RuntimeException("failed to create decoder for " + format.getString(MediaFormat.KEY_MIME), e);
    }
    Surface surface = new Surface(mSurfaceTexture);
    mediaCodec.configure(format, surface, null, 0);
    surface.release();
    return mediaCodec;
}