void AVIDecoder::checkTruemotion1() {
// If we got here from loadStream(), we know the track is valid
assert(!_videoTracks.empty());
TrackStatus &status = _videoTracks[0];
AVIVideoTrack *track = (AVIVideoTrack *)status.track;
// Ignore non-truemotion tracks
if (!track->isTruemotion1())
return;
// Read the next video packet
handleNextPacket(status);
const Graphics::Surface *frame = track->decodeNextFrame();
if (!frame) {
rewind();
return;
}
// Fill in the width/height based on the frame's width/height
_header.width = frame->w;
_header.height = frame->h;
track->forceDimensions(frame->w, frame->h);
// Rewind us back to the beginning
rewind();
}
void AVIDecoder::checkTruemotion1() {
AVIVideoTrack *track = 0;
for (TrackListIterator it = getTrackListBegin(); it != getTrackListEnd(); it++) {
if ((*it)->getTrackType() == Track::kTrackTypeVideo) {
if (track) {
// Multiple tracks; isn't going to be truemotion 1
return;
}
track = (AVIVideoTrack *)*it;
}
}
// No track found?
if (!track)
return;
// Ignore non-truemotion tracks
if (!track->isTruemotion1())
return;
// Search for a non-empty frame
const Graphics::Surface *frame = 0;
for (int i = 0; i < 10 && !frame; i++)
frame = decodeNextFrame();
if (!frame) {
// Probably shouldn't happen
rewind();
return;
}
// Fill in the width/height based on the frame's width/height
_header.width = frame->w;
_header.height = frame->h;
track->forceDimensions(frame->w, frame->h);
// Rewind us back to the beginning
rewind();
}
