OMX_ERRORTYPE Clock::MediaTimeRequest(
OMX_TIME_CONFIG_MEDIATIMEREQUESTTYPE *pRequst)
{
OMX_ERRORTYPE ret = OMX_ErrorNone;
OMX_TIME_MEDIATIMETYPE UpdateType;
OMX_TICKS TargetMediaTime, CurMediaTime;
fsl_osal_timeval CurWallTime;
OMX_S64 WaitTicks;
if(CurState != OMX_TIME_ClockStateRunning) {
LOG_WARNING("Clock is not running.\n");
return OMX_ErrorIncorrectStateOperation;
}
OMX_CHECK_STRUCT(pRequst, OMX_TIME_CONFIG_MEDIATIMEREQUESTTYPE, ret);
if(ret != OMX_ErrorNone)
return ret;
OMX_INIT_STRUCT(&UpdateType, OMX_TIME_MEDIATIMETYPE);
UpdateType.eUpdateType = OMX_TIME_UpdateRequestFulfillment;
UpdateType.nClientPrivate = (OMX_U32) pRequst->pClientPrivate;
if(Scale >= MIN_TRICK_FORWARD_RATE*Q16_SHIFT || Scale < -Q16_SHIFT) {
WaitTicks = (OMX_S64)OMX_TICKS_PER_SECOND*Q16_SHIFT/Scale;
WaitTicks = Scale > 0 ? WaitTicks : -WaitTicks;
CurMediaAndWallTime(NULL, &CurWallTime);
LOG_DEBUG("Scale %d, Cur Media Time: %lld, Wait Time: %lld\n", Scale,CurMediaTime, WaitTicks);
fsl_osal_cond_timedwait(Cond, WaitTicks);
/* Not drop any frames in trick mode */
UpdateType.nMediaTimestamp = pRequst->nMediaTimestamp;
UpdateType.nWallTimeAtMediaTime = WALLTIME2TICKS(CurWallTime);
}
else {
TargetMediaTime = pRequst->nMediaTimestamp;
CurMediaAndWallTime(&CurMediaTime, &CurWallTime);
WaitTicks = (TargetMediaTime - pRequst->nOffset - CurMediaTime)*Q16_SHIFT/Scale;
LOG_DEBUG("Target: %lld, Cur: %lld, Diff: %lld\n", TargetMediaTime, CurMediaTime, WaitTicks);
if(WaitTicks > OMX_TICKS_PER_SECOND) {
fsl_osal_cond_timedwait(Cond, OMX_TICKS_PER_SECOND);
return OMX_ErrorNotReady;
}
if(WaitTicks > 0) {
fsl_osal_cond_timedwait(Cond, WaitTicks);
CurMediaTime = pRequst->nMediaTimestamp;
}
UpdateType.nMediaTimestamp = CurMediaTime;
UpdateType.nWallTimeAtMediaTime = WALLTIME2TICKS(CurWallTime);
}
MediaTimeUpdate(&UpdateType, pRequst->nPortIndex);
return OMX_ErrorNone;
}
OMX_ERRORTYPE GMSubtitlePlayer::ThreadHandler()
{
delayedSample.nFilledLen = -1;
fsl_osal_sem_wait(pSem);
while(bThreadStop != OMX_TRUE) {
OMX_ERRORTYPE ret = OMX_ErrorNone;
GM_STATE State = GM_STATE_NULL;
mAVPlayer->GetState(&State);
if(State == GM_STATE_PAUSE) {
fsl_osal_sleep(500000);
continue;
}
if(delayedSample.nFilledLen == -1){
OMX_BOOL bEOS = OMX_FALSE;
ret = mSource->GetNextSubtitleSample(mSample, bEOS);
if(ret == OMX_ErrorNotReady){
LOG_DEBUG("subtitle not ready, sleep");
fsl_osal_sleep(300000);
continue;
}
if(bEOS == OMX_TRUE)
break;
}
else{
fsl_osal_memcpy(&mSample, &delayedSample, sizeof(GMSubtitleSource::SUBTITLE_SAMPLE));
delayedSample.nFilledLen = -1;
}
LOG_DEBUG("subtitle: format: %d, buffer: %s, len: %d, start pts: %lld\n",
mSample.fmt, mSample.pBuffer, mSample.nFilledLen, mSample.nStartTime);
OMX_TICKS nMediaTime = 0;
mAVPlayer->GetMediaPositionNoLock(&nMediaTime);
OMX_S32 diff = mSample.nStartTime - nMediaTime;
LOG_DEBUG("diff: %d, start time: %lld, media time: %lld\n",
diff, mSample.nStartTime, nMediaTime);
if(diff > 0) {
fsl_osal_cond_timedwait(Cond, diff);
}
if(bThreadStop == OMX_TRUE) {
LOG_DEBUG("GMSubtitlePlayer break as stop.\n");
return OMX_ErrorUndefined;
}
if(bReset == OMX_TRUE) {
LOG_DEBUG("GMSubtitlePlayer break as Reset.\n");
return OMX_ErrorNone;
}
mAVPlayer->GetState(&State);
if(State == GM_STATE_PAUSE) {
fsl_osal_memcpy(&delayedSample, &mSample, sizeof(GMSubtitleSource::SUBTITLE_SAMPLE));
continue;
}
RenderOneSample();
}
return OMX_ErrorNone;
}
