On 19 Jun 2017, at 22:38, Marton Balint <[email protected]> wrote:
> Can you measure how many samples are the delay before and after my patch? I'd 
> rather do some additional testing now, instead committing something that is 
> only half-correct.

I’ve reached out to the developer who was helping me. I believe he also wrote a 
second patch of his own. I don’t yet have a binary build I can test with 
myself, so I would like to test more files to check the results and give you a 
solid answer.

Essentially Quicktime is still assuming 2112 sample delay even with the 
patches, its just that it is ever so slightly better than normal, but it is 
still out of sync. In order to get Quicktime to adhere to a provided delay of 
1024, there would be other changes needed in ffmpeg.

It does appear that most (if not all) Quicktime based encoders are setup to 
output a file for the decoder to assume 2112 sample delay. We have not yet 
found one which uses the ‘modern’ method.

Thanks for your help on this Marton.
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