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  5. android.media.MediaCodec# BUFFER_FLAG_SYNC_FRAME

android.media.MediaCodec# BUFFER_FLAG_SYNC_FRAME 源码实例Demo

下面列出了android.media.MediaCodec# BUFFER_FLAG_SYNC_FRAME 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： LiTr   文件： PassthroughTranscoderShould.java 

@Test
public void writeIFrameWhenInputDataIsAvailable() {
    passthroughTranscoder.sourceTrack = 0;
    passthroughTranscoder.targetTrack = 0;
    passthroughTranscoder.duration = DURATION;
    passthroughTranscoder.targetTrackAdded = true;
    int outputFlags = MediaCodec.BUFFER_FLAG_SYNC_FRAME;

    doReturn(0).when(mediaSource).getSampleTrackIndex();
    doReturn(BUFFER_SIZE).when(mediaSource).readSampleData(outputBuffer, 0);
    doReturn(SAMPLE_TIME).when(mediaSource).getSampleTime();
    doReturn(outputFlags).when(mediaSource).getSampleFlags();

    int result = passthroughTranscoder.processNextFrame();

    verify(outputBufferInfo).set(0, BUFFER_SIZE, SAMPLE_TIME, outputFlags);
    verify(mediaSource).advance();
    verify(mediaTarget).writeSampleData(0, outputBuffer, outputBufferInfo);

    assertThat(passthroughTranscoder.progress, is((float) SAMPLE_TIME / DURATION));
    assertThat(result, is(TrackTranscoder.RESULT_FRAME_PROCESSED));
    assertThat(passthroughTranscoder.lastResult, is(TrackTranscoder.RESULT_FRAME_PROCESSED));
}
源代码2 项目： LiTr   文件： PassthroughTranscoderShould.java 

@Test
public void keepProgressAtZeroWhenDurationIsNotAvailable() {
    passthroughTranscoder.sourceTrack = 0;
    passthroughTranscoder.targetTrack = 0;
    passthroughTranscoder.duration = 0;
    passthroughTranscoder.targetTrackAdded = true;
    int outputFlags = MediaCodec.BUFFER_FLAG_SYNC_FRAME;

    doReturn(0).when(mediaSource).getSampleTrackIndex();
    doReturn(BUFFER_SIZE).when(mediaSource).readSampleData(outputBuffer, 0);
    doReturn(SAMPLE_TIME).when(mediaSource).getSampleTime();
    doReturn(outputFlags).when(mediaSource).getSampleFlags();

    int result = passthroughTranscoder.processNextFrame();

    verify(outputBufferInfo).set(0, BUFFER_SIZE, SAMPLE_TIME, outputFlags);
    verify(mediaSource).advance();
    verify(mediaTarget).writeSampleData(0, outputBuffer, outputBufferInfo);

    assertThat(passthroughTranscoder.progress, is(0f));
    assertThat(result, is(TrackTranscoder.RESULT_FRAME_PROCESSED));
    assertThat(passthroughTranscoder.lastResult, is(TrackTranscoder.RESULT_FRAME_PROCESSED));
}
源代码3 项目： VideoCompressor   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }

    long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
    lastPresentationTimeUs = bufferInfo.presentationTimeUs;
    delta = (delta * timeScale + 500000L) / 1000000L;
    if (!first) {
        sampleDurations.add(sampleDurations.size() - 1, delta);
        duration += delta;
    }
    first = false;
}
源代码4 项目： react-native-video-helper   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }

    long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
    lastPresentationTimeUs = bufferInfo.presentationTimeUs;
    delta = (delta * timeScale + 500000L) / 1000000L;
    if (!first) {
        sampleDurations.add(sampleDurations.size() - 1, delta);
        duration += delta;
    }
    first = false;
}
源代码5 项目： VideoCompressor   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }

    long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
    lastPresentationTimeUs = bufferInfo.presentationTimeUs;
    delta = (delta * timeScale + 500000L) / 1000000L;
    if (!first) {
        sampleDurations.add(sampleDurations.size() - 1, delta);
        duration += delta;
    }
    first = false;
}
源代码6 项目： talk-android   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }

    long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
    lastPresentationTimeUs = bufferInfo.presentationTimeUs;
    delta = (delta * timeScale + 500000L) / 1000000L;
    if (!first) {
        sampleDurations.add(sampleDurations.size() - 1, delta);
        duration += delta;
    }
    first = false;
}
源代码7 项目： SiliCompressor   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }

    long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
    lastPresentationTimeUs = bufferInfo.presentationTimeUs;
    delta = (delta * timeScale + 500000L) / 1000000L;
    if (!first) {
        sampleDurations.add(sampleDurations.size() - 1, delta);
        duration += delta;
    }
    first = false;
}
源代码8 项目： pause-resume-video-recording   文件： CircularEncoderBuffer.java 

/**
 * Returns the index of the oldest sync frame.  Valid until the next add().
 * <p>
 * When sending output to a MediaMuxer, start here.
 */
public int getFirstIndex() {
    final int metaLen = mPacketStart.length;

    int index = mMetaTail;
    while (index != mMetaHead) {
        if ((mPacketFlags[index] & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0) {
            break;
        }
        index = (index + 1) % metaLen;
    }

    if (index == mMetaHead) {
        Log.w(TAG, "HEY: could not find sync frame in buffer");
        index = -1;
    }
    return index;
}
源代码9 项目： grafika   文件： CircularEncoderBuffer.java 

/**
 * Returns the index of the oldest sync frame.  Valid until the next add().
 * <p>
 * When sending output to a MediaMuxer, start here.
 */
public int getFirstIndex() {
    final int metaLen = mPacketStart.length;

    int index = mMetaTail;
    while (index != mMetaHead) {
        if ((mPacketFlags[index] & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0) {
            break;
        }
        index = (index + 1) % metaLen;
    }

    if (index == mMetaHead) {
        Log.w(TAG, "HEY: could not find sync frame in buffer");
        index = -1;
    }
    return index;
}
源代码10 项目： TelePlus-Android   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }
    samplePresentationTimes.add(new SamplePresentationTime(samplePresentationTimes.size(), (bufferInfo.presentationTimeUs * timeScale + 500000L) / 1000000L));
}
源代码11 项目： VideoRecorder   文件： MediaMuxerWarpper.java 

/**
 * 如果混合器未启动 , 那么返回false ,(重新发送到消息队列 , 并且保持原有顺序, 等待混合器启动 , 通常不会等待太久)
 * 如果去掉重新重新发送到消息队列的逻辑 , 在某些手机上生成视频会有问题 , 比如华为 Honor 9 ,
 * 因为第一帧的关键帧丢失 , 如果第一帧视频帧不是关键帧 , 会卡顿 , 直到播放到下一个关键帧 , 并且关键帧间隔时间小于录制的时间会导致混合器无法停止而崩溃
 */
private boolean writeSampleData(int trackIndex, ByteBuffer encodedData, MediaCodec.BufferInfo bufferInfo) {
    LogUtil.logd(TAG,"IFrame = "+((bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0)+"\t\t size = "+bufferInfo.size);
    if (isMuxerStarted()) {
        mMediaMuxer.writeSampleData(trackIndex, encodedData, bufferInfo);
        return true;
    } else {
        if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0) {
            SystemClock.sleep(10);
        }
        return false;
    }
}
源代码12 项目： TelePlus-Android   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }
    samplePresentationTimes.add(new SamplePresentationTime(samplePresentationTimes.size(), (bufferInfo.presentationTimeUs * timeScale + 500000L) / 1000000L));
}
源代码13 项目： Telegram   文件： Track.java 

public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
    boolean isSyncFrame = !isAudio && (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    samples.add(new Sample(offset, bufferInfo.size));
    if (syncSamples != null && isSyncFrame) {
        syncSamples.add(samples.size());
    }
    samplePresentationTimes.add(new SamplePresentationTime(samplePresentationTimes.size(), (bufferInfo.presentationTimeUs * timeScale + 500000L) / 1000000L));
}
源代码14 项目： DeviceConnect-Android   文件： Mpeg2TsMuxer.java 

/**
 * キーフレームか確認します.
 *
 * @param bufferInfo 映像データの情報
 * @return キーフレームの場合はtrue、それ以外はfalse
 */
@SuppressWarnings("deprecation")
private boolean isKeyFrame(MediaCodec.BufferInfo bufferInfo) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        return (bufferInfo.flags & MediaCodec.BUFFER_FLAG_KEY_FRAME) != 0;
    } else {
        return (bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
    }
}
源代码15 项目： droidkit-webrtc   文件： MediaCodecVideoEncoder.java 

private OutputBufferInfo dequeueOutputBuffer() {
  checkOnMediaCodecThread();
  try {
    MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
    int result = mediaCodec.dequeueOutputBuffer(info, DEQUEUE_TIMEOUT);
    if (result >= 0) {
      // MediaCodec doesn't care about Buffer position/remaining/etc so we can
      // mess with them to get a slice and avoid having to pass extra
      // (BufferInfo-related) parameters back to C++.
      ByteBuffer outputBuffer = outputBuffers[result].duplicate();
      outputBuffer.position(info.offset);
      outputBuffer.limit(info.offset + info.size);
      boolean isKeyFrame =
          (info.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
      if (isKeyFrame) {
        Log.d(TAG, "Sync frame generated");
      }
      return new OutputBufferInfo(
          result, outputBuffer.slice(), isKeyFrame, info.presentationTimeUs);
    } else if (result == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
      outputBuffers = mediaCodec.getOutputBuffers();
      return dequeueOutputBuffer();
    } else if (result == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
      return dequeueOutputBuffer();
    } else if (result == MediaCodec.INFO_TRY_AGAIN_LATER) {
      return null;
    }
    throw new RuntimeException("dequeueOutputBuffer: " + result);
  } catch (IllegalStateException e) {
    Log.e(TAG, "dequeueOutputBuffer failed", e);
    return new OutputBufferInfo(-1, null, false, -1);
  }
}
源代码16 项目： webrtc_android   文件： MediaCodecVideoEncoder.java 

@CalledByNativeUnchecked
OutputBufferInfo dequeueOutputBuffer() {
    checkOnMediaCodecThread();
    try {
        MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
        int result = mediaCodec.dequeueOutputBuffer(info, DEQUEUE_TIMEOUT);
        // Check if this is config frame and save configuration data.
        if (result >= 0) {
            boolean isConfigFrame = (info.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0;
            if (isConfigFrame) {
                Logging.d(TAG, "Config frame generated. Offset: " + info.offset + ". Size: " + info.size);
                configData = ByteBuffer.allocateDirect(info.size);
                outputBuffers[result].position(info.offset);
                outputBuffers[result].limit(info.offset + info.size);
                configData.put(outputBuffers[result]);
                // Log few SPS header bytes to check profile and level.
                String spsData = "";
                for (int i = 0; i < (info.size < 8 ? info.size : 8); i++) {
                    spsData += Integer.toHexString(configData.get(i) & 0xff) + " ";
                }
                Logging.d(TAG, spsData);
                // Release buffer back.
                mediaCodec.releaseOutputBuffer(result, false);
                // Query next output.
                result = mediaCodec.dequeueOutputBuffer(info, DEQUEUE_TIMEOUT);
            }
        }
        if (result >= 0) {
            // MediaCodec doesn't care about Buffer position/remaining/etc so we can
            // mess with them to get a slice and avoid having to pass extra
            // (BufferInfo-related) parameters back to C++.
            ByteBuffer outputBuffer = outputBuffers[result].duplicate();
            outputBuffer.position(info.offset);
            outputBuffer.limit(info.offset + info.size);
            reportEncodedFrame(info.size);

            // Check key frame flag.
            boolean isKeyFrame = (info.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
            if (isKeyFrame) {
                Logging.d(TAG, "Sync frame generated");
            }
            if (isKeyFrame && type == VideoCodecType.VIDEO_CODEC_H264) {
                Logging.d(TAG, "Appending config frame of size " + configData.capacity()
                        + " to output buffer with offset " + info.offset + ", size " + info.size);
                // For H.264 key frame append SPS and PPS NALs at the start
                ByteBuffer keyFrameBuffer = ByteBuffer.allocateDirect(configData.capacity() + info.size);
                configData.rewind();
                keyFrameBuffer.put(configData);
                keyFrameBuffer.put(outputBuffer);
                keyFrameBuffer.position(0);
                return new OutputBufferInfo(result, keyFrameBuffer, isKeyFrame, info.presentationTimeUs);
            } else {
                return new OutputBufferInfo(
                        result, outputBuffer.slice(), isKeyFrame, info.presentationTimeUs);
            }
        } else if (result == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
            outputBuffers = mediaCodec.getOutputBuffers();
            return dequeueOutputBuffer();
        } else if (result == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
            return dequeueOutputBuffer();
        } else if (result == MediaCodec.INFO_TRY_AGAIN_LATER) {
            return null;
        }
        throw new RuntimeException("dequeueOutputBuffer: " + result);
    } catch (IllegalStateException e) {
        Logging.e(TAG, "dequeueOutputBuffer failed", e);
        return new OutputBufferInfo(-1, null, false, -1);
    }
}
源代码17 项目： webrtc_android   文件： HardwareVideoEncoder.java 

protected void deliverEncodedImage() {
  outputThreadChecker.checkIsOnValidThread();
  try {
    MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
    int index = codec.dequeueOutputBuffer(info, DEQUEUE_OUTPUT_BUFFER_TIMEOUT_US);
    if (index < 0) {
      return;
    }

    ByteBuffer codecOutputBuffer = codec.getOutputBuffers()[index];
    codecOutputBuffer.position(info.offset);
    codecOutputBuffer.limit(info.offset + info.size);

    if ((info.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0) {
      Logging.d(TAG, "Config frame generated. Offset: " + info.offset + ". Size: " + info.size);
      configBuffer = ByteBuffer.allocateDirect(info.size);
      configBuffer.put(codecOutputBuffer);
    } else {
      bitrateAdjuster.reportEncodedFrame(info.size);
      if (adjustedBitrate != bitrateAdjuster.getAdjustedBitrateBps()) {
        updateBitrate();
      }

      final boolean isKeyFrame = (info.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
      if (isKeyFrame) {
        Logging.d(TAG, "Sync frame generated");
      }

      final ByteBuffer frameBuffer;
      if (isKeyFrame && codecType == VideoCodecType.H264) {
        Logging.d(TAG,
            "Prepending config frame of size " + configBuffer.capacity()
                + " to output buffer with offset " + info.offset + ", size " + info.size);
        // For H.264 key frame prepend SPS and PPS NALs at the start.
        frameBuffer = ByteBuffer.allocateDirect(info.size + configBuffer.capacity());
        configBuffer.rewind();
        frameBuffer.put(configBuffer);
        frameBuffer.put(codecOutputBuffer);
        frameBuffer.rewind();
      } else {
        frameBuffer = codecOutputBuffer.slice();
      }

      final EncodedImage.FrameType frameType = isKeyFrame
          ? EncodedImage.FrameType.VideoFrameKey
          : EncodedImage.FrameType.VideoFrameDelta;

      EncodedImage.Builder builder = outputBuilders.poll();
      builder.setBuffer(frameBuffer).setFrameType(frameType);
      // TODO(mellem):  Set codec-specific info.
      callback.onEncodedFrame(builder.createEncodedImage(), new CodecSpecificInfo());
    }
    codec.releaseOutputBuffer(index, false);
  } catch (IllegalStateException e) {
    Logging.e(TAG, "deliverOutput failed", e);
  }
}
源代码18 项目： kickflip-android-sdk   文件： FFmpegMuxer.java 

private void handleWriteSampleData(MediaCodec encoder, int trackIndex, int bufferIndex, ByteBuffer encodedData, MediaCodec.BufferInfo bufferInfo) {
    super.writeSampleData(encoder, trackIndex, bufferIndex, encodedData, bufferInfo);
    mPacketCount++;

    // Don't write the samples directly if they're CODEC_CONFIG data
    // Of if the muxer has already shutdown
    if (((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0)) {
        if (VERBOSE) Log.i(TAG, "handling BUFFER_FLAG_CODEC_CONFIG for track " + trackIndex);
        if (trackIndex == mVideoTrackIndex) {
            // Capture H.264 SPS + PPS Data
            if (VERBOSE) Log.i(TAG, "Capture SPS + PPS");
            captureH264MetaData(encodedData, bufferInfo);
            releaseOutputBufer(encoder, encodedData, bufferIndex, trackIndex);
            return;
        } else {
            if (VERBOSE) Log.i(TAG, "Ignoring audio CODEC_CONFIG");
            releaseOutputBufer(encoder, encodedData, bufferIndex, trackIndex);
            return;
        }
    }

    if (trackIndex == mAudioTrackIndex && formatRequiresADTS()) {
        addAdtsToByteBuffer(encodedData, bufferInfo);
    }

    // adjust the ByteBuffer values to match BufferInfo (not needed?)
    encodedData.position(bufferInfo.offset);
    encodedData.limit(bufferInfo.offset + bufferInfo.size);

    bufferInfo.presentationTimeUs = getNextRelativePts(bufferInfo.presentationTimeUs, trackIndex);

    if (VERBOSE)
        Log.i(TAG, mPacketCount + " PTS " + bufferInfo.presentationTimeUs + " size: " + bufferInfo.size + " " + (trackIndex == mVideoTrackIndex ? "video " : "audio ") + (((bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0) ? "keyframe" : "") + (((bufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) ? " EOS" : ""));
    if (DEBUG_PKTS) writePacketToFile(encodedData, bufferInfo);

    if (!allTracksFinished()) {
        if (trackIndex == mVideoTrackIndex && ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0)) {
            packageH264Keyframe(encodedData, bufferInfo);
            mFFmpeg.writeAVPacketFromEncodedData(mH264Keyframe, 1, bufferInfo.offset, bufferInfo.size + mH264MetaSize, bufferInfo.flags, bufferInfo.presentationTimeUs);
        } else
            mFFmpeg.writeAVPacketFromEncodedData(encodedData, (trackIndex == mVideoTrackIndex ? 1 : 0), bufferInfo.offset, bufferInfo.size, bufferInfo.flags, bufferInfo.presentationTimeUs);
    }
    releaseOutputBufer(encoder, encodedData, bufferIndex, trackIndex);

    if (allTracksFinished()) {
        /*if (VERBOSE) */ Log.i(TAG, "Shutting down on last frame");
        handleForceStop();
    }
}
源代码19 项目： VideoCRE   文件： MediaCodecVideoEncoder.java 

private void deliverEncodedImage() {
  try {
    int index = mediaCodec.dequeueOutputBuffer(outputBufferInfo,
            OUTPUT_THREAD_DEQUEUE_TIMEOUT_US);
    if (index < 0) {
      if (index == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
        callback.onOutputFormatChanged(mediaCodec, mediaCodec.getOutputFormat());
      }
      return;
    }

    ByteBuffer codecOutputBuffer = mediaCodec.getOutputBuffers()[index];
    codecOutputBuffer.position(outputBufferInfo.offset);
    codecOutputBuffer.limit(outputBufferInfo.offset + outputBufferInfo.size);

    if ((outputBufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0) {
      Logging.d(TAG, "Config frame generated. Offset: " + outputBufferInfo.offset
                     + ". Size: " + outputBufferInfo.size);
      configData = ByteBuffer.allocateDirect(outputBufferInfo.size);
      configData.put(codecOutputBuffer);
      // Log few SPS header bytes to check profile and level.
      String spsData = "";
      for (int i = 0; i < (outputBufferInfo.size < 8 ? outputBufferInfo.size : 8); i++) {
        spsData += Integer.toHexString(configData.get(i) & 0xff) + " ";
      }
      Logging.d(TAG, spsData);
    } else {
      reportEncodedFrame(outputBufferInfo.size);

      // Check key frame flag.
      boolean isKeyFrame = (outputBufferInfo.flags & MediaCodec.BUFFER_FLAG_SYNC_FRAME) != 0;
      if (isKeyFrame && type == VideoCodecType.VIDEO_CODEC_H264) {
        // For H.264 key frame append SPS and PPS NALs at the start
        if (keyFrameData.capacity() < configData.capacity() + outputBufferInfo.size) {
          // allocate double size
          int newSize = Math.max(keyFrameData.capacity() * 2,
                  configData.capacity() + outputBufferInfo.size);
          keyFrameData = ByteBuffer.allocateDirect(newSize);
        }
        keyFrameData.position(0);
        configData.rewind();
        keyFrameData.put(configData);
        keyFrameData.put(codecOutputBuffer);
        keyFrameData.position(0);
        outputFrame.fill(index, keyFrameData, configData.capacity() + outputBufferInfo.size,
                isKeyFrame, outputBufferInfo.presentationTimeUs);
        callback.onEncodedFrame(outputFrame, outputBufferInfo);
        releaseOutputBuffer(index);
      } else {
        outputFrame.fill(index, codecOutputBuffer, outputBufferInfo.size, isKeyFrame,
                outputBufferInfo.presentationTimeUs);
        callback.onEncodedFrame(outputFrame, outputBufferInfo);
        releaseOutputBuffer(index);
      }
    }
  } catch (IllegalStateException e) {
    Logging.e(TAG, "deliverOutput failed", e);
  }
}
源代码20 项目： Android   文件： MainActivity.java 

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;
    }
 方法所在类
android.media.MediaCodec
 同类方法
BufferInfo ( )
INFO_OUTPUT_FORMAT_CHANGED
INFO_TRY_AGAIN_LATER
BUFFER_FLAG_END_OF_STREAM
INFO_OUTPUT_BUFFERS_CHANGED
createEncoderByType ( )
configure ( )
BUFFER_FLAG_CODEC_CONFIG
start ( )
releaseOutputBuffer ( )
queueInputBuffer ( )
getOutputBuffers ( )
createDecoderByType ( )
VIDEO_SCALING_MODE_SCALE_TO_FIT
dequeueOutputBuffer ( )
getInputBuffers ( )
createByCodecName ( )
release ( )
dequeueInputBuffer ( )
BUFFER_FLAG_SYNC_FRAME
createInputSurface ( )
CodecException ( )
getOutputFormat ( )
stop ( )
setOutputSurface ( )
CryptoException ( )
CryptoInfo ( )
getOutputBuffer ( )
getInputBuffer ( )
BUFFER_FLAG_KEY_FRAME
flush ( )
getCodecInfo ( )