[FFmpeg-devel] [PATCH] avfilter: add Audio Video Sync Test filter

[Paul B Mahol]

On 8/19/17, Nicolas George <george at nsup.org> wrote:
> Le duodi 2 fructidor, an CCXXV, Paul B Mahol a écrit :
>> And how would you show delay introduced with video source filter?
>> testsrc(2) does not show anything resembling that.
>
> I do not understand what you mean. The output of "ffmpeg -lavfi
> 'testsrc2;sine'" looks functionally identical to the video you point.
> Please be more specific, with more than two short lines of answer.

How do you know when beep and blink should happen in your example?

What is blink for testsrc2? Where in testsrc2 you can see delay in numeric form?