Esempio n. 1
0
void
StreamBuffer::ForgetUpTo(StreamTime aTime)
{
  // Round to nearest 50ms so we don't spend too much time pruning segments.
  const int roundTo = MillisecondsToMediaTime(50);
  StreamTime forget = (aTime/roundTo)*roundTo;
  if (forget <= mForgottenTime) {
    return;
  }
  mForgottenTime = forget;

  for (PRUint32 i = 0; i < mTracks.Length(); ++i) {
    Track* track = mTracks[i];
    if (track->IsEnded() && track->GetEndTimeRoundDown() <= forget) {
      mTracks.RemoveElementAt(i);
      --i;
      continue;
    }
    TrackTicks forgetTo = NS_MIN(track->GetEnd() - 1, track->TimeToTicksRoundDown(forget));
    track->ForgetUpTo(forgetTo);
  }
}
Esempio n. 2
0
void
StreamBuffer::ForgetUpTo(StreamTime aTime)
{
  // Only prune if there is a reasonable chunk (50ms @ 48kHz) to forget, so we
  // don't spend too much time pruning segments.
  const StreamTime minChunkSize = 2400;
  if (aTime < mForgottenTime + minChunkSize) {
    return;
  }
  mForgottenTime = aTime;

  for (uint32_t i = 0; i < mTracks.Length(); ++i) {
    Track* track = mTracks[i];
    if (track->IsEnded() && track->GetEnd() <= aTime) {
      mTracks.RemoveElementAt(i);
      --i;
      continue;
    }
    StreamTime forgetTo = std::min(track->GetEnd() - 1, aTime);
    track->ForgetUpTo(forgetTo);
  }
}