public void stop() {
if (mPlaybackThread != null) {
mPlaybackThread.interrupt();
mPlaybackThread = null;
}
stayAwake(false);
}
public void seekTo(long usec) {
/* A seek needs to be performed in the decoding thread to execute commands in the correct
* order. Otherwise it can happen that, after a seek in the media decoder, seeking procedure
* starts, then a frame is decoded, and then the codec is flushed; the PTS of the decoded frame
* then interferes the seeking procedure, the seek stops prematurely and a wrong waiting time
* gets calculated. */
// inform the decoder thread of an upcoming seek
mSeekPrepare = true;
mSeekTargetTime = Math.max(mVideoMinPTS, usec);
// if the decoder is paused, wake it up for the seek
if (mPlaybackThread.isPaused()) {
mPlaybackThread.play();
mPlaybackThread.pause();
}
}
public void setDataSource(MediaSource source) throws IOException {
mVideoExtractor = source.getVideoExtractor();
mAudioExtractor = source.getAudioExtractor();
mVideoTrackIndex = -1;
mAudioTrackIndex = -1;
for (int i = 0; i < mVideoExtractor.getTrackCount(); ++i) {
MediaFormat format = mVideoExtractor.getTrackFormat(i);
Log.d(TAG, format.toString());
String mime = format.getString(MediaFormat.KEY_MIME);
if (mVideoTrackIndex < 0 && mime.startsWith("video/")) {
mVideoExtractor.selectTrack(i);
mVideoTrackIndex = i;
mVideoFormat = format;
mVideoMinPTS = mVideoExtractor.getSampleTime();
} else if (mAudioExtractor == null && mAudioTrackIndex < 0 && mime.startsWith("audio/")) {
mVideoExtractor.selectTrack(i);
mAudioTrackIndex = i;
mAudioFormat = format;
mAudioMinPTS = mVideoExtractor.getSampleTime();
}
}
if (mAudioExtractor != null) {
for (int i = 0; i < mAudioExtractor.getTrackCount(); ++i) {
MediaFormat format = mAudioExtractor.getTrackFormat(i);
Log.d(TAG, format.toString());
String mime = format.getString(MediaFormat.KEY_MIME);
if (mAudioTrackIndex < 0 && mime.startsWith("audio/")) {
mAudioExtractor.selectTrack(i);
mAudioTrackIndex = i;
mAudioFormat = format;
mAudioMinPTS = mAudioExtractor.getSampleTime();
}
}
}
if (mVideoFormat == null) {
throw new IOException("no video track found");
} else {
if (mAudioFormat == null) {
Log.i(TAG, "no audio track found");
}
if (mPlaybackThread == null) {
if (mSurface == null) {
Log.i(TAG, "no video output surface specified");
}
mPlaybackThread = new PlaybackThread();
mPlaybackThread.start();
}
}
}
public boolean isPlaying() {
return mPlaybackThread != null && !mPlaybackThread.isPaused();
}
public void pause() {
mPlaybackThread.pause();
stayAwake(false);
}
public void start() {
mPlaybackThread.play();
stayAwake(true);
}
