[FFmpeg-devel] strange seek problem matroska and avcodec_flush_buffers

Don Moir donmoir at comcast.net
Sun Feb 19 19:18:25 CET 2012

> On Sun, Feb 19, 2012 at 12:03:36PM -0500, Don Moir wrote:
>> The thing is, the "bad_seek_matroska_strange" file is a worst case
>> of this of the files I have. Some other files I have, have a very
>> slight indication of this. Maybe something like 1/8 to 1/4 of a
>> second. In these cases, settting CODEC_FLAG2_SHOW_ALL is worse
>> because you will see distortion where previously it was clean. While
>> seeing the distortion is helpful in some cases, I have more files
>> that are effected negatively by it.
> I may be missing something, but this should be a bug, the demuxer
> should be seeking exactly to a keyframe and CODEC_FLAG2_SHOW_ALL
> should not make the slightest difference at all.

That's what I was thinking but wasn't sure how error concealment came into 
play there. 

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