Hi,
if I add a Tween Track to my QT movie, I end up with a movie file requiring
QT7 and not working on QT10. If I don't add the tween track, QT10 can open
the movie. So the difference is the Tween Track.
However Safari 5.0.3 can play the movie with the Tween Track and I can
properly hear the volume decreasing. So the Tween Track works well.
Is anyone who knows how to create a Tween Track working on QT10?
I do:
scale = GetMovieTimeScale(_movie);
tweenTrack = NewMovieTrack(_movie, 0, 0, kNoVolume);
tweenMedia = NewTrackMedia(tweenTrack, TweenMediaType, scale nil, 0);
BeginMediaEdits(tweenMedia);
...
AddTweenSampleToMedia2(tweenMedia, rampOffset, rampDur, lastVol, thisVol);
...
EndMediaEdits(tweenMedia);
InsertMediaIntoTrack(tweenTrack, insPoint, 0, tweenDuration, fixed1);
QTNewAtomContainer(&inputMap);
AddTrackReference(mySndTrack, tweenTrack, kTrackModifierReference,
&referenceIndex);
QTInsertChild(inputMap, kParentAtomIsContainer, kTrackModifierInput,
referenceIndex, 0, 0, nil, &inputAtom);
OSType inputType = EndianU32_NtoB(kTrackModifierTypeVolume);
QTInsertChild(inputMap, inputAtom, kTrackModifierType, 1, 0,
sizeof(inputType), &inputType, nil);
long tweenID = EndianU32_NtoB(1);
QTInsertChild(inputMap, inputAtom, kInputMapSubInputID, 1, 0,
sizeof(tweenID), &tweenID, nil);
err = SetMediaInputMap(GetTrackMedia(mySndTrack), inputMap);
if(err != noErr) return err;
QTDisposeAtomContainer(inputMap);
Regards
-- Leonardo
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