/**
* Gets the chunk sizes for the given track.
*
* @param track the track we are talking about
* @return the size of each chunk in number of samples
*/
int[] getChunkSizes(Track track) {
long[] referenceChunkStarts = fragmenter.sampleNumbers(track);
int[] chunkSizes = new int[referenceChunkStarts.length];
for (int i = 0; i < referenceChunkStarts.length; i++) {
long start = referenceChunkStarts[i] - 1;
long end;
if (referenceChunkStarts.length == i + 1) {
end = track.getSamples().size();
} else {
end = referenceChunkStarts[i + 1] - 1;
}
chunkSizes[i] = l2i(end - start);
// The Stretch makes sure that there are as much audio and video chunks!
}
assert DefaultMp4Builder.this.track2Sample.get(track).size() == sum(chunkSizes)
: "The number of samples and the sum of all chunk lengths must be equal";
return chunkSizes;
}