mtime_t SegmentInformation::getPlaybackTimeBySegmentNumber(uint64_t number) const
{
SegmentList *segList;
MediaSegmentTemplate *mediaTemplate;
uint64_t timescale = 1;
mtime_t time = 0;
if( (mediaTemplate = inheritSegmentTemplate()) )
{
timescale = mediaTemplate->inheritTimescale();
if(mediaTemplate->segmentTimeline.Get())
{
time = mediaTemplate->segmentTimeline.Get()->
getScaledPlaybackTimeByElementNumber(number);
}
else
{
time = number * mediaTemplate->duration.Get();
}
}
else if ( (segList = inheritSegmentList()) )
{
timescale = segList->inheritTimescale();
time = number * segList->getDuration();
}
if(time)
time = CLOCK_FREQ * time / timescale;
return time;
}
bool SegmentInformation::getSegmentNumberByTime(mtime_t time, uint64_t *ret) const
{
SegmentList *segList;
MediaSegmentTemplate *mediaTemplate;
uint64_t timescale = 1;
mtime_t duration = 0;
if( (mediaTemplate = inheritSegmentTemplate()) )
{
timescale = mediaTemplate->inheritTimescale();
duration = mediaTemplate->duration.Get();
}
else if ( (segList = inheritSegmentList()) )
{
timescale = segList->inheritTimescale();
duration = segList->getDuration();
}
if(duration)
{
*ret = time / (CLOCK_FREQ * duration / timescale);
return true;
}
return false;
}