On Fri, Mar 29, 2013 at 9:15 PM, GitHub <nore...@github.com> wrote:
>   Branch: refs/heads/master
>   Home:   https://github.com/mltframework/mlt
>   Commit: ceba2ccb7cab276152c0c214f56f20219e8173d5
>       
> https://github.com/mltframework/mlt/commit/ceba2ccb7cab276152c0c214f56f20219e8173d5
>   Author: Dan Dennedy <d...@dennedy.org>
>   Date:   2013-03-29 (Fri, 29 Mar 2013)
>
>   Changed paths:
>     M src/modules/avformat/producer_avformat.c
>
>   Log Message:
>   -----------
>   Fix A/V sync error accumulation regression in avformat producer.
>
> Regresion occurred in commit 6cfe84 on March 18 when adding support for
> libavformat v55.
>
>
>   Commit: d658f9b99a929f4c00aa51939b5ed7cafe8f83b1
>       
> https://github.com/mltframework/mlt/commit/d658f9b99a929f4c00aa51939b5ed7cafe8f83b1
>   Author: Dan Dennedy <d...@dennedy.org>
>   Date:   2013-03-29 (Fri, 29 Mar 2013)
>
>   Changed paths:
>     M src/modules/avformat/consumer_avformat.c
>
>   Log Message:
>   -----------
>   Fix A/V sync error accumulation in avformat consumer.
>
> This appears to be a long-standing problem: we were not correctly
> setting the number of audio samples per frame.
>
>
> Compare: 
> https://github.com/mltframework/mlt/compare/64caa1d9d08c...d658f9b99a92

This latter commit was quite minor as usually the codec had a fixed
number of samples per encode call. But there are factors that could
cause the number to deviate from the norm, and this change is just
making certain we are giving the exact number for each call. Without
it, there could be distortions, but probably not A/V sync error as
alleged in this commit message.

--
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