Java Code Examples for android.media.MediaExtractor#selectTrack()
The following examples show how to use
android.media.MediaExtractor#selectTrack() .
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Example 1
| Source File: MediaVideoPlayer.java From AudioVideoPlayerSample with Apache License 2.0 | 6 votes |
|
/**
* @param sourceFile
* @return first video track index, -1 if not found
*/
protected int internalPrepareVideo(final String sourceFile) {
int trackIndex = -1;
mVideoMediaExtractor = new MediaExtractor();
try {
mVideoMediaExtractor.setDataSource(sourceFile);
trackIndex = selectTrack(mVideoMediaExtractor, "video/");
if (trackIndex >= 0) {
mVideoMediaExtractor.selectTrack(trackIndex);
final MediaFormat format = mVideoMediaExtractor.getTrackFormat(trackIndex);
mVideoWidth = format.getInteger(MediaFormat.KEY_WIDTH);
mVideoHeight = format.getInteger(MediaFormat.KEY_HEIGHT);
mDuration = format.getLong(MediaFormat.KEY_DURATION);
if (DEBUG) Log.v(TAG, String.format("format:size(%d,%d),duration=%d,bps=%d,framerate=%f,rotation=%d",
mVideoWidth, mVideoHeight, mDuration, mBitrate, mFrameRate, mRotation));
}
} catch (final IOException e) {
Log.w(TAG, e);
}
return trackIndex;
}
Example 2
| Source File: MediaMoviePlayer.java From AudioVideoPlayerSample with Apache License 2.0 | 6 votes |
|
/**
* @param sourceFile
* @return first video track index, -1 if not found
*/
protected int internalPrepareVideo(final String sourceFile) {
int trackIndex = -1;
mVideoMediaExtractor = new MediaExtractor();
try {
mVideoMediaExtractor.setDataSource(sourceFile);
trackIndex = selectTrack(mVideoMediaExtractor, "video/");
if (trackIndex >= 0) {
mVideoMediaExtractor.selectTrack(trackIndex);
final MediaFormat format = mVideoMediaExtractor.getTrackFormat(trackIndex);
mVideoWidth = format.getInteger(MediaFormat.KEY_WIDTH);
mVideoHeight = format.getInteger(MediaFormat.KEY_HEIGHT);
mDuration = format.getLong(MediaFormat.KEY_DURATION);
if (DEBUG) Log.v(TAG, String.format("format:size(%d,%d),duration=%d,bps=%d,framerate=%f,rotation=%d",
mVideoWidth, mVideoHeight, mDuration, mBitrate, mFrameRate, mRotation));
}
} catch (final IOException e) {
Log.w(TAG, e);
}
return trackIndex;
}
Example 3
| Source File: VideoUtil.java From VideoProcessor with Apache License 2.0 | 6 votes |
|
public static float getAveFrameRate(VideoProcessor.MediaSource mediaSource) throws IOException {
MediaExtractor extractor = new MediaExtractor();
mediaSource.setDataSource(extractor);
int trackIndex = VideoUtil.selectTrack(extractor, false);
extractor.selectTrack(trackIndex);
long lastSampleTimeUs = 0;
int frameCount = 0;
while (true) {
long sampleTime = extractor.getSampleTime();
if (sampleTime < 0) {
break;
} else {
lastSampleTimeUs = sampleTime;
}
frameCount++;
extractor.advance();
}
extractor.release();
return frameCount / (lastSampleTimeUs / 1000f / 1000f);
}
Example 4
| Source File: VideoDecoder.java From rtmp-rtsp-stream-client-java with Apache License 2.0 | 6 votes |
|
public boolean initExtractor(String filePath) throws IOException {
decoding = false;
videoExtractor = new MediaExtractor();
videoExtractor.setDataSource(filePath);
for (int i = 0; i < videoExtractor.getTrackCount() && !mime.startsWith("video/"); i++) {
videoFormat = videoExtractor.getTrackFormat(i);
mime = videoFormat.getString(MediaFormat.KEY_MIME);
if (mime.startsWith("video/")) {
videoExtractor.selectTrack(i);
} else {
videoFormat = null;
}
}
if (videoFormat != null) {
width = videoFormat.getInteger(MediaFormat.KEY_WIDTH);
height = videoFormat.getInteger(MediaFormat.KEY_HEIGHT);
duration = videoFormat.getLong(MediaFormat.KEY_DURATION);
return true;
//video decoder not supported
} else {
mime = "";
videoFormat = null;
return false;
}
}
Example 5
| Source File: VideoTrackConverter.java From mollyim-android with GNU General Public License v3.0 | 5 votes |
|
private static int getAndSelectVideoTrackIndex(@NonNull MediaExtractor extractor) {
for (int index = 0; index < extractor.getTrackCount(); ++index) {
if (VERBOSE) {
Log.d(TAG, "format for track " + index + " is " + MediaConverter.getMimeTypeFor(extractor.getTrackFormat(index)));
}
if (isVideoFormat(extractor.getTrackFormat(index))) {
extractor.selectTrack(index);
return index;
}
}
return -1;
}
Example 6
| Source File: AudioUtil.java From VideoProcessor with Apache License 2.0 | 5 votes |
|
/**
* 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 7
| Source File: MediaAudioFileEncoder.java From PLDroidShortVideo with Apache License 2.0 | 5 votes |
|
@Override
protected void prepare() throws IOException {
if (DEBUG) Log.v(TAG, "prepare:");
mTrackIndex = -1;
mMuxerStarted = mIsEOS = false;
mMediaExtractor = new MediaExtractor();
mMediaExtractor.setDataSource(mFilepath);
MediaMuxerWrapper muxer = mWeakMuxer.get();
//分离出音轨和视轨
Log.d(TAG, "getTrackCount: " + mMediaExtractor.getTrackCount());
for (int i = 0; i < mMediaExtractor.getTrackCount(); i++) {
MediaFormat format = mMediaExtractor.getTrackFormat(i);
String mime = format.getString(MediaFormat.KEY_MIME);
if (mime.startsWith(AUDIO)) {
int maxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
mInputBuffer = ByteBuffer.allocate(maxInputSize);
mMediaExtractor.selectTrack(i);
mTrackIndex = muxer.addTrack(format);
break;
}
}
if (mListener != null) {
try {
mListener.onPrepared(this);
} catch (final Exception e) {
Log.e(TAG, "prepare:", e);
}
}
}
Example 8
| Source File: MediaCodecDecodeController.java From AndroidVideoSamples with Apache License 2.0 | 5 votes |
|
private void setupExtractor() {
mExtractor = new MediaExtractor();
try {
mExtractor.setDataSource( mUri.toString() );
} catch ( IOException e ) {
e.printStackTrace();
}
int videoIndex = 0;
for ( int trackIndex = 0; trackIndex < mExtractor.getTrackCount(); trackIndex++ ) {
MediaFormat format = mExtractor.getTrackFormat( trackIndex );
String mime = format.getString( MediaFormat.KEY_MIME );
if ( mime != null ) {
if ( mime.equals( "video/avc" ) ) {
mExtractor.selectTrack( trackIndex );
videoIndex = trackIndex;
break;
}
}
}
mDecoder = MediaCodec.createDecoderByType( "video/avc" );
mDecoder.configure( mExtractor.getTrackFormat( videoIndex ), mSurface, null, 0 );
mDecoder.start();
mInfo = new BufferInfo();
mInputBuffers = mDecoder.getInputBuffers();
mOutputBuffers = mDecoder.getOutputBuffers();
}
Example 9
| Source File: VideoUtil.java From VideoProcessor with Apache License 2.0 | 5 votes |
|
/**
* 用于制作全关键帧视频时计算比特率应该为多少
*
* @return
*/
public static int getBitrateForAllKeyFrameVideo(VideoProcessor.MediaSource input) throws IOException {
MediaExtractor extractor = new MediaExtractor();
input.setDataSource(extractor);
int trackIndex = VideoUtil.selectTrack(extractor, false);
extractor.selectTrack(trackIndex);
int keyFrameCount = 0;
int frameCount = 0;
while (true) {
int flags = extractor.getSampleFlags();
if (flags > 0 && (flags & MediaExtractor.SAMPLE_FLAG_SYNC) != 0) {
keyFrameCount++;
}
long sampleTime = extractor.getSampleTime();
if (sampleTime < 0) {
break;
}
frameCount++;
extractor.advance();
}
extractor.release();
float bitrateMultiple = (frameCount - keyFrameCount) / (float) keyFrameCount + 1;
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
input.setDataSource(retriever);
int oriBitrate = Integer.parseInt(retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_BITRATE));
retriever.release();
if (frameCount == keyFrameCount) {
return oriBitrate;
}
return (int) (bitrateMultiple * oriBitrate);
}
Example 10
| Source File: TranscodeVideoUtil.java From SimpleVideoEdit with Apache License 2.0 | 5 votes |
|
private int getAndSelectAudioTrackIndex(MediaExtractor extractor) {
for (int index = 0; index < extractor.getTrackCount(); ++index) {
if (VERBOSE) {
Log.d(TAG, "format for track " + index + " is "
+ getMimeTypeFor(extractor.getTrackFormat(index)));
}
if (isAudioFormat(extractor.getTrackFormat(index))) {
extractor.selectTrack(index);
return index;
}
}
return -1;
}
Example 11
| Source File: TranscodeVideoUtil.java From SimpleVideoEdit with Apache License 2.0 | 5 votes |
|
private int getAndSelectVideoTrackIndex(MediaExtractor extractor) {
for (int index = 0; index < extractor.getTrackCount(); ++index) {
if (VERBOSE) {
Log.d(TAG, "format for track " + index + " is "
+ getMimeTypeFor(extractor.getTrackFormat(index)));
}
if (isVideoFormat(extractor.getTrackFormat(index))) {
extractor.selectTrack(index);
return index;
}
}
return -1;
}
Example 12
| Source File: MediaMoviePlayer.java From libcommon with Apache License 2.0 | 5 votes |
|
/**
* @param source
* @return first video track index, -1 if not found
*/
@SuppressLint("NewApi")
protected int internal_prepare_video(final Object source) throws IOException {
int trackindex = -1;
mVideoMediaExtractor = new MediaExtractor();
if (source instanceof String) {
mVideoMediaExtractor.setDataSource((String)source);
} else if (source instanceof AssetFileDescriptor) {
if (BuildCheck.isAndroid7()) {
mVideoMediaExtractor.setDataSource((AssetFileDescriptor)source);
} else {
mVideoMediaExtractor.setDataSource(((AssetFileDescriptor)source).getFileDescriptor());
}
} else {
// ここには来ないけど
throw new IllegalArgumentException("unknown source type:source=" + source);
}
trackindex = selectTrack(mVideoMediaExtractor, "video/");
if (trackindex >= 0) {
mVideoMediaExtractor.selectTrack(trackindex);
final MediaFormat format = mVideoMediaExtractor.getTrackFormat(trackindex);
mVideoWidth = format.getInteger(MediaFormat.KEY_WIDTH);
mVideoHeight = format.getInteger(MediaFormat.KEY_HEIGHT);
mDuration = format.getLong(MediaFormat.KEY_DURATION);
if (DEBUG) Log.v(TAG, String.format("format:size(%d,%d),duration=%d,bps=%d,framerate=%f,rotation=%d",
mVideoWidth, mVideoHeight, mDuration, mBitrate, mFrameRate, mRotation));
}
return trackindex;
}
Example 13
| Source File: AudioTrackConverter.java From mollyim-android with GNU General Public License v3.0 | 5 votes |
|
private static int getAndSelectAudioTrackIndex(MediaExtractor extractor) {
for (int index = 0; index < extractor.getTrackCount(); ++index) {
if (VERBOSE) {
Log.d(TAG, "format for track " + index + " is " + MediaConverter.getMimeTypeFor(extractor.getTrackFormat(index)));
}
if (isAudioFormat(extractor.getTrackFormat(index))) {
extractor.selectTrack(index);
return index;
}
}
return -1;
}
Example 14
| Source File: MediaMoviePlayer.java From libcommon with Apache License 2.0 | 4 votes |
|
/**
* @param source
* @return first audio track index, -1 if not found
*/
@SuppressLint("NewApi")
protected int internal_prepare_audio(final Object source) throws IOException {
int trackindex = -1;
mAudioMediaExtractor = new MediaExtractor();
if (source instanceof String) {
mAudioMediaExtractor.setDataSource((String)source);
} else if (source instanceof AssetFileDescriptor) {
if (BuildCheck.isAndroid7()) {
mVideoMediaExtractor.setDataSource((AssetFileDescriptor)source);
} else {
mVideoMediaExtractor.setDataSource(((AssetFileDescriptor)source).getFileDescriptor());
}
} else {
// ここには来ないけど
throw new IllegalArgumentException("unknown source type:source=" + source);
}
trackindex = selectTrack(mAudioMediaExtractor, "audio/");
if (trackindex >= 0) {
mAudioMediaExtractor.selectTrack(trackindex);
final MediaFormat format = mAudioMediaExtractor.getTrackFormat(trackindex);
mAudioChannels = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
mAudioSampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
final int min_buf_size = AudioTrack.getMinBufferSize(mAudioSampleRate,
(mAudioChannels == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO),
AudioFormat.ENCODING_PCM_16BIT);
final int max_input_size = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
mAudioInputBufSize = min_buf_size > 0 ? min_buf_size * 4 : max_input_size;
if (mAudioInputBufSize > max_input_size) mAudioInputBufSize = max_input_size;
final int frameSizeInBytes = mAudioChannels * 2;
mAudioInputBufSize = (mAudioInputBufSize / frameSizeInBytes) * frameSizeInBytes;
if (DEBUG) Log.v(TAG, String.format("getMinBufferSize=%d,max_input_size=%d,mAudioInputBufSize=%d",min_buf_size, max_input_size, mAudioInputBufSize));
//
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC,
mAudioSampleRate,
(mAudioChannels == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO),
AudioFormat.ENCODING_PCM_16BIT,
mAudioInputBufSize,
AudioTrack.MODE_STREAM);
try {
mAudioTrack.play();
} catch (final Exception e) {
Log.e(TAG, "failed to start audio track playing", e);
mAudioTrack.release();
mAudioTrack = null;
}
}
return trackindex;
}
Example 15
| Source File: MediaController.java From react-native-video-helper with MIT License | 4 votes |
|
@TargetApi(16)
private long readAndWriteTrack(MediaExtractor extractor, MP4Builder mediaMuxer, MediaCodec.BufferInfo info, long start, long end, File file, boolean isAudio) throws Exception {
int trackIndex = selectTrack(extractor, isAudio);
if (trackIndex >= 0) {
extractor.selectTrack(trackIndex);
MediaFormat trackFormat = extractor.getTrackFormat(trackIndex);
int muxerTrackIndex = mediaMuxer.addTrack(trackFormat, isAudio);
int maxBufferSize = trackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
boolean inputDone = false;
if (start > 0) {
extractor.seekTo(start, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
} else {
extractor.seekTo(0, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
}
ByteBuffer buffer = ByteBuffer.allocateDirect(maxBufferSize);
long startTime = -1;
while (!inputDone) {
boolean eof = false;
int index = extractor.getSampleTrackIndex();
if (index == trackIndex) {
info.size = extractor.readSampleData(buffer, 0);
if (info.size < 0) {
info.size = 0;
eof = true;
} else {
info.presentationTimeUs = extractor.getSampleTime();
if (start > 0 && startTime == -1) {
startTime = info.presentationTimeUs;
}
if (end < 0 || info.presentationTimeUs < end) {
info.offset = 0;
info.flags = extractor.getSampleFlags();
if (mediaMuxer.writeSampleData(muxerTrackIndex, buffer, info, isAudio)) {
// didWriteData(messageObject, file, false, false);
}
extractor.advance();
} else {
eof = true;
}
}
} else if (index == -1) {
eof = true;
}
if (eof) {
inputDone = true;
}
}
extractor.unselectTrack(trackIndex);
return startTime;
}
return -1;
}
Example 16
| Source File: VideoUtil.java From VideoProcessor with Apache License 2.0 | 4 votes |
|
static long appendVideoTrack(MediaExtractor extractor, MediaMuxer mediaMuxer, int muxerVideoTrackIndex,
Integer startTimeUs, Integer endTimeUs, long baseMuxerFrameTimeUs, int bitrate, int iFrameInterval,
boolean isFirst, boolean isLast) throws Exception {
int videoTrack = selectTrack(extractor, false);
extractor.selectTrack(videoTrack);
if (startTimeUs == null) {
startTimeUs = 0;
}
extractor.seekTo(startTimeUs, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
MediaFormat videoFormat = extractor.getTrackFormat(videoTrack);
//初始化编码器
int resultWidth = videoFormat.getInteger(MediaFormat.KEY_WIDTH);
int resultHeight = videoFormat.getInteger(MediaFormat.KEY_HEIGHT);
AtomicBoolean decodeDone = new AtomicBoolean(false);
VideoAppendEncodeThread encodeThread = new VideoAppendEncodeThread(extractor, mediaMuxer, bitrate,
resultWidth, resultHeight, iFrameInterval, videoTrack,
decodeDone, baseMuxerFrameTimeUs, isFirst, isLast, muxerVideoTrackIndex);
VideoDecodeThread decodeThread = new VideoDecodeThread(encodeThread, extractor, startTimeUs == null ? null : startTimeUs / 1000,
endTimeUs == null ? null : endTimeUs / 1000,
null, null, null, false,videoTrack, decodeDone);
decodeThread.start();
encodeThread.start();
try {
decodeThread.join();
encodeThread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
try {
extractor.release();
} catch (Exception e2) {
CL.e(e2);
}
if (encodeThread.getException() != null) {
throw encodeThread.getException();
} else if (decodeThread.getException() != null) {
throw decodeThread.getException();
}
return encodeThread.getLastFrametimeUs();
}
Example 17
| Source File: VideoRecoder.java From deltachat-android with GNU General Public License v3.0 | 4 votes |
|
@TargetApi(16)
private long readAndWriteTrack(MediaExtractor extractor, MP4Builder mediaMuxer, MediaCodec.BufferInfo info, long start, long end, File file, boolean isAudio) throws Exception {
int trackIndex = selectTrack(extractor, isAudio);
if (trackIndex >= 0) {
extractor.selectTrack(trackIndex);
MediaFormat trackFormat = extractor.getTrackFormat(trackIndex);
int muxerTrackIndex = mediaMuxer.addTrack(trackFormat, isAudio);
int maxBufferSize = trackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
boolean inputDone = false;
if (start > 0) {
extractor.seekTo(start, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
} else {
extractor.seekTo(0, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
}
ByteBuffer buffer = ByteBuffer.allocateDirect(maxBufferSize);
long startTime = -1;
checkConversionCanceled();
long lastTimestamp = -100;
while (!inputDone) {
checkConversionCanceled();
boolean eof = false;
int index = extractor.getSampleTrackIndex();
if (index == trackIndex) {
info.size = extractor.readSampleData(buffer, 0);
if (info.size >= 0) {
info.presentationTimeUs = extractor.getSampleTime();
} else {
info.size = 0;
eof = true;
}
if (info.size > 0 && !eof) {
if (start > 0 && startTime == -1) {
startTime = info.presentationTimeUs;
}
if (end < 0 || info.presentationTimeUs < end) {
if (info.presentationTimeUs > lastTimestamp) {
info.offset = 0;
info.flags = extractor.getSampleFlags();
if (mediaMuxer.writeSampleData(muxerTrackIndex, buffer, info, isAudio)) {
//didWriteData(messageObject, file, false, false);
}
}
lastTimestamp = info.presentationTimeUs;
} else {
eof = true;
}
}
if (!eof) {
extractor.advance();
}
} else if (index == -1) {
eof = true;
} else {
extractor.advance();
}
if (eof) {
inputDone = true;
}
}
extractor.unselectTrack(trackIndex);
return startTime;
}
return -1;
}
Example 18
| Source File: VideoResampler.java From AndroidVideoSamples with Apache License 2.0 | 4 votes |
|
private void feedClipToEncoder( SamplerClip clip ) {
mLastSampleTime = 0;
MediaCodec decoder = null;
MediaExtractor extractor = setupExtractorForClip(clip);
if(extractor == null ) {
return;
}
int trackIndex = getVideoTrackIndex(extractor);
extractor.selectTrack( trackIndex );
MediaFormat clipFormat = extractor.getTrackFormat( trackIndex );
if ( clip.getStartTime() != -1 ) {
extractor.seekTo( clip.getStartTime() * 1000, MediaExtractor.SEEK_TO_PREVIOUS_SYNC );
clip.setStartTime( extractor.getSampleTime() / 1000 );
}
try {
decoder = MediaCodec.createDecoderByType( MediaHelper.MIME_TYPE_AVC );
mOutputSurface = new OutputSurface();
decoder.configure( clipFormat, mOutputSurface.getSurface(), null, 0 );
decoder.start();
resampleVideo( extractor, decoder, clip );
} finally {
if ( mOutputSurface != null ) {
mOutputSurface.release();
}
if ( decoder != null ) {
decoder.stop();
decoder.release();
}
if ( extractor != null ) {
extractor.release();
extractor = null;
}
}
}
Example 19
| Source File: MainActivity.java From Android with Apache License 2.0 | 4 votes |
|
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;
}
Example 20
| Source File: VideoThumbnailsExtractor.java From mollyim-android with GNU General Public License v3.0 | 4 votes |
|
static void extractThumbnails(final @NonNull MediaInput input,
final int thumbnailCount,
final int thumbnailResolution,
final @NonNull Callback callback)
{
MediaExtractor extractor = null;
MediaCodec decoder = null;
OutputSurface outputSurface = null;
try {
extractor = input.createExtractor();
MediaFormat mediaFormat = null;
for (int index = 0; index < extractor.getTrackCount(); ++index) {
if (extractor.getTrackFormat(index).getString(MediaFormat.KEY_MIME).startsWith("video/")) {
extractor.selectTrack(index);
mediaFormat = extractor.getTrackFormat(index);
break;
}
}
if (mediaFormat != null) {
final String mime = mediaFormat.getString(MediaFormat.KEY_MIME);
final int rotation = mediaFormat.containsKey(MediaFormat.KEY_ROTATION) ? mediaFormat.getInteger(MediaFormat.KEY_ROTATION) : 0;
final int width = mediaFormat.getInteger(MediaFormat.KEY_WIDTH);
final int height = mediaFormat.getInteger(MediaFormat.KEY_HEIGHT);
final int outputWidth;
final int outputHeight;
if (width < height) {
outputWidth = thumbnailResolution;
outputHeight = height * outputWidth / width;
} else {
outputHeight = thumbnailResolution;
outputWidth = width * outputHeight / height;
}
final int outputWidthRotated;
final int outputHeightRotated;
if ((rotation % 180 == 90)) {
//noinspection SuspiciousNameCombination
outputWidthRotated = outputHeight;
//noinspection SuspiciousNameCombination
outputHeightRotated = outputWidth;
} else {
outputWidthRotated = outputWidth;
outputHeightRotated = outputHeight;
}
Log.i(TAG, "video: " + width + "x" + height + " " + rotation);
Log.i(TAG, "output: " + outputWidthRotated + "x" + outputHeightRotated);
outputSurface = new OutputSurface(outputWidthRotated, outputHeightRotated, true);
decoder = MediaCodec.createDecoderByType(mime);
decoder.configure(mediaFormat, outputSurface.getSurface(), null, 0);
decoder.start();
long duration = 0;
if (mediaFormat.containsKey(MediaFormat.KEY_DURATION)) {
duration = mediaFormat.getLong(MediaFormat.KEY_DURATION);
} else {
Log.w(TAG, "Video is missing duration!");
}
callback.durationKnown(duration);
doExtract(extractor, decoder, outputSurface, outputWidthRotated, outputHeightRotated, duration, thumbnailCount, callback);
}
} catch (IOException | TranscodingException e) {
Log.w(TAG, e);
callback.failed();
} finally {
if (outputSurface != null) {
outputSurface.release();
}
if (decoder != null) {
decoder.stop();
decoder.release();
}
if (extractor != null) {
extractor.release();
}
}
}
