Just worth checking. Do you have the same problem if you record a 1 sec silent wav file and then add it for the duration of your movie? That is, instead of writing the silence bytes yourself, use a pre-recorded, but short, WAV file.
I also notice you're setting the volume on your audio track to 1f. Why not 0f?
Cheers,
Alex
A O <email@hidden> wrote:
Hi!
I am creating a video from png images. Which I can do successfully!
My problem is that Im trying to add a blank audio track to it. I am trying to do this because if I add the movie file into a video editor, it gives me an error and will not open- something like invalid audio track or no audio track available.
NOw I picked up the Quicktime for Java book and looked up audio tracks, and found a decent
example. But I cannot seem to get rid of the audio sound entirely. Always at the very beginning of the video there is one millisecond of high volumed static.
Here is what I am doing with the audio stuff... thanks for reading!
----------
//blank audio value - does this work right? byte[] emptySound = new byte[44100*2]; for (int i=0; i<44100 * 2;i++){ emptySound[i] = (byte) 0x00; }
...later...
//add audio track Track trkSoundTrack = movMovie.addTrack(0,0,1); Media medSoundMedia = new SoundMedia(trkSoundTrack, movMovie.getTimeScale());//1); medSoundMedia.beginEdits();
//build sound description int format = QTUtils.toOSType("NONE"); SoundDescription sdSoundDesc = new SoundDescription(format); sdSoundDesc.setNumberOfChannels(1); sdSoundDesc.setSampleSize(16); sdSoundDesc.setSampleRate(44100);
for (int i=1; i<= iTotalImages; i++) { //add image to video
track and...
//add audio to frame QTHandle qthHandle = new QTHandle(emptySound); medSoundMedia.setTimeScale(m_iFramesPerSecond); medSoundMedia.addSample(qthHandle, 0, qthHandle.getSize(), 1, sdSoundDesc, 1, //44100, sampleFlags);
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