本文整理汇总了Java中android.media.MediaCodec类的典型用法代码示例。如果您正苦于以下问题:Java MediaCodec类的具体用法?Java MediaCodec怎么用?Java MediaCodec使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
MediaCodec类属于android.media包,在下文中一共展示了MediaCodec类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: buildRenderers
import android.media.MediaCodec; //导入依赖的package包/类
@Override
public void buildRenderers(DemoPlayer player) {
Allocator allocator = new DefaultAllocator(BUFFER_SEGMENT_SIZE);
Handler mainHandler = player.getMainHandler();
// Build the video and audio renderers.
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, null);
DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ExtractorSampleSource sampleSource = new ExtractorSampleSource(uri, dataSource, allocator,
BUFFER_SEGMENT_COUNT * BUFFER_SEGMENT_SIZE, mainHandler, player, 0);
MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
sampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
mainHandler, player, 50);
MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
MediaCodecSelector.DEFAULT, null, true, mainHandler, player,
AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
TrackRenderer textRenderer = new TextTrackRenderer(sampleSource, player,
mainHandler.getLooper());
// Invoke the callback.
TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
player.onRenderers(renderers, bandwidthMeter);
}
示例2: drainDecoder
import android.media.MediaCodec; //导入依赖的package包/类
private int drainDecoder(long timeoutUs) {
if (mIsDecoderEOS) return DRAIN_STATE_NONE;
int result = mDecoder.dequeueOutputBuffer(mBufferInfo, timeoutUs);
switch (result) {
case MediaCodec.INFO_TRY_AGAIN_LATER:
return DRAIN_STATE_NONE;
case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:
mAudioChannel.setActualDecodedFormat(mDecoder.getOutputFormat());
case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:
return DRAIN_STATE_SHOULD_RETRY_IMMEDIATELY;
}
if ((mBufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
mIsDecoderEOS = true;
mAudioChannel.drainDecoderBufferAndQueue(AudioChannel.BUFFER_INDEX_END_OF_STREAM, 0);
} else if (mBufferInfo.size > 0) {
mAudioChannel.drainDecoderBufferAndQueue(result, mBufferInfo.presentationTimeUs);
}
return DRAIN_STATE_CONSUMED;
}
示例3: open
import android.media.MediaCodec; //导入依赖的package包/类
@Override
public Point open(SurfaceTexture surface) {
try {
if(!extractMedia()){
return new Point(0,0);
}
mFrameSem=new Semaphore(0);
mDecodeSem=new Semaphore(1);
videoProvideEndFlag=false;
isUserWantToStop=false;
mAudioEncodeTrack=mStore.addTrack(mExtractor.getTrackFormat(mAudioDecodeTrack));
MediaFormat format=mExtractor.getTrackFormat(mVideoDecodeTrack);
mVideoDecoder = MediaCodec.createDecoderByType(format.getString(MediaFormat.KEY_MIME));
mVideoDecoder.configure(format,new Surface(surface),null,0);
mVideoDecoder.start();
startDecodeThread();
} catch (IOException e) {
e.printStackTrace();
}
return mVideoSize;
}
示例4: openVideoEncoder
import android.media.MediaCodec; //导入依赖的package包/类
private void openVideoEncoder(){
AvLog.d(TAG,"openVideoEncoder startTime-->");
if(mVideoEncoder==null){
try {
MediaFormat format=convertVideoConfigToFormat(mConfig.mVideo);
mVideoEncoder= MediaCodec.createEncoderByType(mConfig.mVideo.mime);
mVideoEncoder.configure(format,null,null,MediaCodec.CONFIGURE_FLAG_ENCODE);
super.setSurface(mVideoEncoder.createInputSurface());
super.setOutputSize(mConfig.mVideo.width,mConfig.mVideo.height);
mVideoEncoder.start();
isEncodeStarted=true;
} catch (IOException e) {
e.printStackTrace();
}
}
AvLog.d(TAG,"openVideoEncoder endTime-->");
}
示例5: writeFrameByte
import android.media.MediaCodec; //导入依赖的package包/类
private void writeFrameByte(int track, ByteBuffer bb, MediaCodec.BufferInfo bi, boolean isKeyFrame) {
SrsEsFrame frame = new SrsEsFrame();
frame.bb = bb;
frame.bi = bi;
frame.isKeyFrame = isKeyFrame;
frame.track = track;
if (bRecording && !bPaused) {
if (needToFindKeyFrame) {
if (frame.isKeyFrame) {
needToFindKeyFrame = false;
frameCache.add(frame);
synchronized (writeLock) {
writeLock.notifyAll();
}
}
} else {
frameCache.add(frame);
synchronized (writeLock) {
writeLock.notifyAll();
}
}
}
}
示例6: getVideoMediaCodec
import android.media.MediaCodec; //导入依赖的package包/类
@TargetApi(21)
public static MediaCodec getVideoMediaCodec() {
int videoWidth = getVideoSize(Options.getInstance().video.width);
int videoHeight = getVideoSize(Options.getInstance().video.height);
MediaFormat format = MediaFormat.createVideoFormat(Options.getInstance().video.mime, videoWidth, videoHeight);
format.setInteger(MediaFormat.KEY_COLOR_FORMAT,
MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
format.setInteger(MediaFormat.KEY_BIT_RATE, Options.getInstance().video.maxBps* 1024);
int fps = Options.getInstance().video.fps;
//设置摄像头预览帧率
// if(BlackListHelper.deviceInFpsBlacklisted()) {
// SopCastLog.d(SopCastConstant.TAG, "Device in fps setting black list, so set mediacodec fps 15");
// fps = 15;
// }
format.setInteger(MediaFormat.KEY_FRAME_RATE, fps);
format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, Options.getInstance().video.ifi);
format.setInteger(MediaFormat.KEY_BITRATE_MODE, MediaCodecInfo.EncoderCapabilities.BITRATE_MODE_VBR);
format.setInteger(MediaFormat.KEY_COMPLEXITY, MediaCodecInfo.EncoderCapabilities.BITRATE_MODE_CBR);
MediaCodec mediaCodec = null;
try {
mediaCodec = MediaCodec.createEncoderByType(Options.getInstance().video.mime);
mediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
}catch (Exception e) {
e.printStackTrace();
if (mediaCodec != null) {
mediaCodec.stop();
mediaCodec.release();
mediaCodec = null;
}
}
return mediaCodec;
}
示例7: queueInputBuffer
import android.media.MediaCodec; //导入依赖的package包/类
/**
* Copy audio from the recorder into the encoder.
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private int queueInputBuffer(MediaCodec codec, ByteBuffer[] inputBuffers, int index, SpeechRecord speechRecord) {
if (speechRecord == null || speechRecord.getRecordingState() != SpeechRecord.RECORDSTATE_RECORDING) {
return -1;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
ByteBuffer inputBuffer = inputBuffers[index];
inputBuffer.clear();
int size = inputBuffer.limit();
byte[] buffer = new byte[size];
int status = read(speechRecord, buffer);
if (status < 0) {
handleError("status = " + status);
return -1;
}
inputBuffer.put(buffer);
codec.queueInputBuffer(index, 0, size, 0, 0);
return size;
}
return -1;
}
开发者ID:vaibhavs4424,项目名称:AI-Powered-Intelligent-Banking-Platform,代码行数:26,代码来源:EncodedAudioRecorder.java
示例8: MediaEncoder
import android.media.MediaCodec; //导入依赖的package包/类
public MediaEncoder(final MediaMuxerWrapper muxer, final MediaEncoderListener listener) {
if (listener == null) throw new NullPointerException("MediaEncoderListener is null");
if (muxer == null) throw new NullPointerException("MediaMuxerWrapper is null");
mWeakMuxer = new WeakReference<MediaMuxerWrapper>(muxer);
muxer.addEncoder(this);
mListener = listener;
synchronized (mSync) {
// create BufferInfo here for effectiveness(to reduce GC)
mBufferInfo = new MediaCodec.BufferInfo();
// wait for starting thread
new Thread(this, getClass().getSimpleName()).start();
try {
mSync.wait();
} catch (final InterruptedException e) {
}
}
}
示例9: recorderEncoderLoop
import android.media.MediaCodec; //导入依赖的package包/类
/**
* Reads bytes from the given recorder and encodes them with the given encoder.
* Uses the (deprecated) Synchronous Processing using Buffer Arrays.
* <p/>
* Encoders (or codecs that generate compressed data) will create and return the codec specific
* data before any valid output buffer in output buffers marked with the codec-config flag.
* Buffers containing codec-specific-data have no meaningful timestamps.
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void recorderEncoderLoop(MediaCodec codec, SpeechRecord speechRecord) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
codec.start();
// Getting some buffers (e.g. 4 of each) to communicate with the codec
ByteBuffer[] codecInputBuffers = codec.getInputBuffers();
ByteBuffer[] codecOutputBuffers = codec.getOutputBuffers();
Log.i("input buffers " + codecInputBuffers.length + "; output buffers: " + codecOutputBuffers.length);
boolean doneSubmittingInput = false;
int numRetriesDequeueOutputBuffer = 0;
int index;
while (true) {
if (!doneSubmittingInput) {
index = codec.dequeueInputBuffer(DEQUEUE_TIMEOUT);
if (index >= 0) {
int size = queueInputBuffer(codec, codecInputBuffers, index, speechRecord);
if (size == -1) {
codec.queueInputBuffer(index, 0, 0, 0, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
Log.i("enc: in: EOS");
doneSubmittingInput = true;
} else {
Log.i("enc: in: " + size);
mNumBytesSubmitted += size;
}
} else {
Log.i("enc: in: timeout, will try again");
}
}
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
index = codec.dequeueOutputBuffer(info, DEQUEUE_TIMEOUT);
Log.i("enc: out: flags/index: " + info.flags + "/" + index);
if (index == MediaCodec.INFO_TRY_AGAIN_LATER) {
Log.i("enc: out: INFO_TRY_AGAIN_LATER: " + numRetriesDequeueOutputBuffer);
if (++numRetriesDequeueOutputBuffer > MAX_NUM_RETRIES_DEQUEUE_OUTPUT_BUFFER) {
break;
}
} else if (index == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
MediaFormat format = codec.getOutputFormat();
Log.i("enc: out: INFO_OUTPUT_FORMAT_CHANGED: " + format.toString());
} else if (index == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
codecOutputBuffers = codec.getOutputBuffers();
Log.i("enc: out: INFO_OUTPUT_BUFFERS_CHANGED");
} else {
dequeueOutputBuffer(codec, codecOutputBuffers, index, info);
mNumBytesDequeued += info.size;
if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
Log.i("enc: out: EOS");
break;
}
}
}
codec.stop();
codec.release();
}
}
开发者ID:vaibhavs4424,项目名称:AI-Powered-Intelligent-Banking-Platform,代码行数:64,代码来源:EncodedAudioRecorder.java
示例10: addSample
import android.media.MediaCodec; //导入依赖的package包/类
public void addSample(long offset, MediaCodec.BufferInfo bufferInfo) {
long delta = bufferInfo.presentationTimeUs - lastPresentationTimeUs;
if (delta < 0) {
return;
}
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());
}
delta = (delta * timeScale + 500000L) / 1000000L;
lastPresentationTimeUs = bufferInfo.presentationTimeUs;
if (!first) {
sampleDurations.add(sampleDurations.size() - 1, delta);
duration += delta;
}
first = false;
}
示例11: MediaCodecRenderer
import android.media.MediaCodec; //导入依赖的package包/类
/**
* @param trackType The track type that the renderer handles. One of the {@code C.TRACK_TYPE_*}
* constants defined in {@link C}.
* @param mediaCodecSelector A decoder selector.
* @param drmSessionManager For use with encrypted media. May be null if support for encrypted
* media is not required.
* @param playClearSamplesWithoutKeys Encrypted media may contain clear (un-encrypted) regions.
* For example a media file may start with a short clear region so as to allow playback to
* begin in parallel with key acquisition. This parameter specifies whether the renderer is
* permitted to play clear regions of encrypted media files before {@code drmSessionManager}
* has obtained the keys necessary to decrypt encrypted regions of the media.
*/
public MediaCodecRenderer(int trackType, MediaCodecSelector mediaCodecSelector,
DrmSessionManager<FrameworkMediaCrypto> drmSessionManager,
boolean playClearSamplesWithoutKeys) {
super(trackType);
Assertions.checkState(Util.SDK_INT >= 16);
this.mediaCodecSelector = Assertions.checkNotNull(mediaCodecSelector);
this.drmSessionManager = drmSessionManager;
this.playClearSamplesWithoutKeys = playClearSamplesWithoutKeys;
buffer = new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DISABLED);
flagsOnlyBuffer = DecoderInputBuffer.newFlagsOnlyInstance();
formatHolder = new FormatHolder();
decodeOnlyPresentationTimestamps = new ArrayList<>();
outputBufferInfo = new MediaCodec.BufferInfo();
codecReconfigurationState = RECONFIGURATION_STATE_NONE;
codecReinitializationState = REINITIALIZATION_STATE_NONE;
}
示例12: handleCodecOutput
import android.media.MediaCodec; //导入依赖的package包/类
private void handleCodecOutput(MediaCodec mediaCodec,
ByteBuffer[] codecOutputBuffers,
MediaCodec.BufferInfo bufferInfo,
OutputStream outputStream)
throws IOException
{
int codecOutputBufferIndex = mediaCodec.dequeueOutputBuffer(bufferInfo, 0);
while (codecOutputBufferIndex != MediaCodec.INFO_TRY_AGAIN_LATER) {
if (codecOutputBufferIndex >= 0) {
ByteBuffer encoderOutputBuffer = codecOutputBuffers[codecOutputBufferIndex];
encoderOutputBuffer.position(bufferInfo.offset);
encoderOutputBuffer.limit(bufferInfo.offset + bufferInfo.size);
if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != MediaCodec.BUFFER_FLAG_CODEC_CONFIG) {
byte[] header = createAdtsHeader(bufferInfo.size - bufferInfo.offset);
outputStream.write(header);
byte[] data = new byte[encoderOutputBuffer.remaining()];
encoderOutputBuffer.get(data);
outputStream.write(data);
}
encoderOutputBuffer.clear();
mediaCodec.releaseOutputBuffer(codecOutputBufferIndex, false);
} else if (codecOutputBufferIndex== MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
codecOutputBuffers = mediaCodec.getOutputBuffers();
}
codecOutputBufferIndex = mediaCodec.dequeueOutputBuffer(bufferInfo, 0);
}
}
示例13: dequeueOutputBuffer
import android.media.MediaCodec; //导入依赖的package包/类
/**
* Save the encoded (output) buffer into the complete encoded recording.
* TODO: copy directly (without the intermediate byte array)
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void dequeueOutputBuffer(MediaCodec codec, ByteBuffer[] outputBuffers, int index, MediaCodec.BufferInfo info) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
ByteBuffer buffer = outputBuffers[index];
Log.i("size/remaining: " + info.size + "/" + buffer.remaining());
if (info.size <= buffer.remaining()) {
final byte[] bufferCopied = new byte[info.size];
buffer.get(bufferCopied); // TODO: catch BufferUnderflow
// TODO: do we need to clear?
// on N5: always size == remaining(), clearing is not needed
// on SGS2: remaining decreases until it becomes less than size, which results in BufferUnderflow
// (but SGS2 records only zeros anyway)
//buffer.clear();
codec.releaseOutputBuffer(index, false);
addEncoded(bufferCopied);
if (Log.DEBUG) {
AudioUtils.showSomeBytes("out", bufferCopied);
}
} else {
Log.e("size > remaining");
codec.releaseOutputBuffer(index, false);
}
}
}
开发者ID:vaibhavs4424,项目名称:AI-Powered-Intelligent-Banking-Platform,代码行数:29,代码来源:EncodedAudioRecorder.java
示例14: AudioEncoderCore
import android.media.MediaCodec; //导入依赖的package包/类
public AudioEncoderCore(MMediaMuxer MMediaMuxer) throws IOException {
super(MMediaMuxer);
final MediaFormat audioFormat = MediaFormat.createAudioFormat(MIME_TYPE, SAMPLE_RATE, 1);
audioFormat.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);
audioFormat.setInteger(MediaFormat.KEY_CHANNEL_MASK, AudioFormat.CHANNEL_IN_MONO);
audioFormat.setInteger(MediaFormat.KEY_BIT_RATE, BIT_RATE);
audioFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
// audioFormat.setLong(MediaFormat.KEY_MAX_INPUT_SIZE, inputFile.length());
// audioFormat.setLong(MediaFormat.KEY_DURATION, (long)durationInMs );
if (VERBOSE) Log.i(TAG, "format: " + audioFormat);
mEncoder = MediaCodec.createEncoderByType(MIME_TYPE);
mEncoder.configure(audioFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
mEncoder.start();
if (mAudioThread == null) {
mAudioThread = new AudioThread();
mAudioThread.start();
capturing=true;
stopped=false;
}
}
示例15: buildRenderers
import android.media.MediaCodec; //导入依赖的package包/类
@Override
public void buildRenderers(VideoPlayer player) {
Allocator allocator = new DefaultAllocator(BUFFER_SEGMENT_SIZE);
Handler mainHandler = player.getMainHandler();
TrackRenderer[] renderers = new TrackRenderer[RENDERER_COUNT];
DataSource dataSource = new DefaultUriDataSource(context, userAgent);
ExtractorSampleSource sampleSource = new ExtractorSampleSource(uri, dataSource, allocator, BUFFER_SEGMENT_COUNT * BUFFER_SEGMENT_SIZE, mainHandler, null, 0);
renderers[TYPE_VIDEO] = new MediaCodecVideoTrackRenderer(context, sampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50) {
@Override
protected void doSomeWork(long positionUs, long elapsedRealtimeUs, boolean sourceIsReady) throws ExoPlaybackException {
super.doSomeWork(positionUs, elapsedRealtimeUs, sourceIsReady);
}
};
renderers[TYPE_AUDIO] = new MediaCodecAudioTrackRenderer(sampleSource, MediaCodecSelector.DEFAULT, null, true, mainHandler, null, AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
player.onRenderers(renderers);
}