/**
\fn GoToIntraTime
\brief Go to an intra at time time (exact)
\return true on success, false on error
*/
bool ADM_Composer::goToIntraTimeVideo(uint64_t time)
{
uint32_t frame;
if(false==GoToIntraTime_noDecoding(time,&frame))
{
ADM_warning("Seek failed.\n");
return false;
}
_SEGMENT *seg=_segments.getSegment(_currentSegment);
// Ok, we have switched to a new segment
// Flush the cache
_VIDEOS *vid= _segments.getRefVideo(seg->_reference);
if(false== DecodePictureUpToIntra(seg->_reference,frame))
{
return false;
}
// Get the last decoded PTS and it is our current PTS
uint64_t newPts=vid->lastDecodedPts+seg->_startTimeUs;
newPts-=seg->_refStartTimeUs;
SET_CURRENT_PTS(newPts);
#if 0
ADM_info("decodec DTS=%"PRIu64" ms\n",vid->lastDecodedPts/1000);
ADM_info("startTime DTS=%"PRIu64" ms\n",seg->_startTimeUs/1000);
ADM_info("refstart DTS=%"PRIu64" ms\n",seg->_refStartTimeUs/1000);
ADM_info("Current DTS=%"PRIu64" ms\n",_currentPts/1000);
#endif
return true;
}
/**
\fn seektoFrame
\brief Seek to frame with timestamp given as arg
*/
bool ADM_Composer::seektoTime(uint32_t ref,uint64_t timeToSeek,bool dontdecode)
{
_VIDEOS *vid=_segments.getRefVideo(ref);
vidHeader *demuxer=vid->_aviheader;
EditorCache *cache =vid->_videoCache;
ADM_assert(cache);
bool found=false;
// Search the previous keyframe for segment....
uint64_t seekTime;
if(_segments.isKeyFrameByTime(ref,timeToSeek))
{
seekTime=timeToSeek;
ADM_info("First frame of the new segment is a keyframe at %"PRIu32"ms\n",seekTime/1000);
found=true;
}else
{
if(false==searchPreviousKeyFrameInRef(ref,timeToSeek,&seekTime))
{
ADM_warning("Cannot identify the keyframe before %"PRIu64" ms\n",seekTime/1000);
return false;
}
}
uint32_t frame=_segments.intraTimeToFrame(ref,seekTime);
if(dontdecode==true)
{
vid->lastSentFrame=frame;
ADM_info("Seek to time without decoding ok\n");
return true;
}
// ok now seek...
if(false==DecodePictureUpToIntra(ref,frame))
{
ADM_warning("Cannot decode up to intra %"PRIu64" at %"PRIu64" ms\n",frame,seekTime/1000);
return false;
}
if(found==true) return true;
// Now forward...
while(nextPictureInternal(ref,NULL)==true)
{
uint64_t pts=vid->lastDecodedPts;
if(pts==ADM_NO_PTS)
{
ADM_warning("No PTS out of decoder\n");
continue;
}
vid->lastReadPts=pts;
if(pts==timeToSeek)
{
ADM_info("Image found, pts=%"PRIu64" ms\n",pts/1000);
return true;
}
if(pts>timeToSeek)
{
ADM_info("Image not found,searching %"PRIu64" ms, got pts=%"PRIu64" ms\n",timeToSeek/1000,pts/1000);
return false;
}
}
ADM_warning("seekToFrame failed for frame at PTS= %"PRIu64" ms, next image failed\n",timeToSeek/1000);
return false;
}
