liveMedia/MatroskaDemuxedTrack.cpp

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// "liveMedia"
// Copyright (c) 1996-2020 Live Networks, Inc.  All rights reserved.
// A media track, demultiplexed from a Matroska file
// Implementation

#include "MatroskaDemuxedTrack.hh"
#include "MatroskaFile.hh"

void MatroskaDemuxedTrack::seekToTime(double& seekNPT) {
  fOurSourceDemux.seekToTime(seekNPT);
}

MatroskaDemuxedTrack::MatroskaDemuxedTrack(UsageEnvironment& env, unsigned trackNumber, MatroskaDemux& sourceDemux)
  : FramedSource(env),
    fOurTrackNumber(trackNumber), fOurSourceDemux(sourceDemux), fDurationImbalance(0),
    fOpusTrackNumber(0) {
  fPrevPresentationTime.tv_sec = 0; fPrevPresentationTime.tv_usec = 0;
}

MatroskaDemuxedTrack::~MatroskaDemuxedTrack() {
  fOurSourceDemux.removeTrack(fOurTrackNumber);
}

void MatroskaDemuxedTrack::doGetNextFrame() {
  fOurSourceDemux.continueReading();
}

char const* MatroskaDemuxedTrack::MIMEtype() const {
  MatroskaTrack* track = fOurSourceDemux.fOurFile.lookup(fOurTrackNumber);
  if (track == NULL) return "(unknown)"; // shouldn't happen
  return track->mimeType;
}