status_t MediaPlayer::seekTo(int msec)
{
mLockThreadId = getThreadId();
Mutex::Autolock _l(mLock);
status_t result = seekTo_l(msec);
mLockThreadId = 0;
return result;
}
void MediaPlayer::notify(int msg, int ext1, int ext2, const Parcel *obj)
{
ALOGV("message received msg=%d, ext1=%d, ext2=%d", msg, ext1, ext2);
bool send = true;
bool locked = false;
// TODO: In the future, we might be on the same thread if the app is
// running in the same process as the media server. In that case,
// this will deadlock.
//
// The threadId hack below works around this for the care of prepare
// and seekTo within the same process.
// FIXME: Remember, this is a hack, it's not even a hack that is applied
// consistently for all use-cases, this needs to be revisited.
if (mLockThreadId != getThreadId()) {
mLock.lock();
locked = true;
}
// Allows calls from JNI in idle state to notify errors
if (!(msg == MEDIA_ERROR && mCurrentState == MEDIA_PLAYER_IDLE) && mPlayer == 0) {
ALOGV("notify(%d, %d, %d) callback on disconnected mediaplayer", msg, ext1, ext2);
if (locked) mLock.unlock(); // release the lock when done.
return;
}
switch (msg) {
case MEDIA_NOP: // interface test message
break;
case MEDIA_PREPARED:
ALOGV("prepared");
mCurrentState = MEDIA_PLAYER_PREPARED;
if (mPrepareSync) {
ALOGV("signal application thread");
mPrepareSync = false;
mPrepareStatus = NO_ERROR;
mSignal.signal();
}
break;
case MEDIA_PLAYBACK_COMPLETE:
ALOGV("playback complete");
if (mCurrentState == MEDIA_PLAYER_IDLE) {
ALOGE("playback complete in idle state");
}
if (!mLoop) {
mCurrentState = MEDIA_PLAYER_PLAYBACK_COMPLETE;
}
break;
case MEDIA_ERROR:
// Always log errors.
// ext1: Media framework error code.
// ext2: Implementation dependant error code.
ALOGE("error (%d, %d)", ext1, ext2);
mCurrentState = MEDIA_PLAYER_STATE_ERROR;
if (mPrepareSync)
{
ALOGV("signal application thread");
mPrepareSync = false;
mPrepareStatus = ext1;
mSignal.signal();
send = false;
}
break;
case MEDIA_INFO:
// ext1: Media framework error code.
// ext2: Implementation dependant error code.
if (ext1 != MEDIA_INFO_VIDEO_TRACK_LAGGING) {
ALOGW("info/warning (%d, %d)", ext1, ext2);
}
break;
case MEDIA_SEEK_COMPLETE:
ALOGV("Received seek complete");
if (mSeekPosition != mCurrentPosition) {
ALOGV("Executing queued seekTo(%d)", mSeekPosition);
mSeekPosition = -1;
seekTo_l(mCurrentPosition);
}
else {
ALOGV("All seeks complete - return to regularly scheduled program");
mCurrentPosition = mSeekPosition = -1;
}
break;
case MEDIA_BUFFERING_UPDATE:
ALOGV("buffering %d", ext1);
break;
case MEDIA_SET_VIDEO_SIZE:
ALOGV("New video size %d x %d", ext1, ext2);
mVideoWidth = ext1;
mVideoHeight = ext2;
break;
case MEDIA_TIMED_TEXT:
ALOGV("Received timed text message");
break;
default:
ALOGV("unrecognized message: (%d, %d, %d)", msg, ext1, ext2);
break;
}
sp<MediaPlayerListener> listener = mListener;
if (locked) mLock.unlock();
// this prevents re-entrant calls into client code
if ((listener != 0) && send) {
Mutex::Autolock _l(mNotifyLock);
ALOGV("callback application");
listener->notify(msg, ext1, ext2, obj);
ALOGV("back from callback");
}
}
int seekTo(VideoState **ps, int msec) {
int result = seekTo_l(ps, msec);
return result;
}
