* commit 'bf208ec91ec80fd2a3c2474c236b09b37c1a02c4': Support .avi tracks that have a sample size of 1, i.e. samples != chunks
* commit 'bf208ec91ec80fd2a3c2474c236b09b37c1a02c4': Support .avi tracks that have a sample size of 1, i.e. samples != chunks