[FFmpeg-devel] [PATCH] Fix to prevent runaway ac3 detection

Kieran Kunhya kierank at obe.tv
Sat Jan 28 20:04:02 EET 2017

On Sat, 28 Jan 2017 at 12:53 Marijn Meijles <marijn at bitpit.net> wrote:

> This is a fix for https://trac.ffmpeg.org/ticket/6106 .
> The issue is that when detecting a swapped AC3 marker the data of the
> frame is swapped. However, in subsequent frames the data swapped is
> taken from the first frame rather than the current frame. So all frames
> are considered to be correct even though they might not be. This
> leads to a high probe score and eventual misidentification.

Do these files not have SPDIF syncwords?


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