[FFmpeg-user] ffmpeg unexpectedly increases debug level for console messages

Gyan Doshi ffmpeg at gyani.pro
Mon Aug 8 18:43:41 EEST 2022

On 2022-08-08 08:02 pm, Dmitry Katsubo via ffmpeg-user wrote:
> Dear ffmpeg community,
> I have ffmpeg for Windows x64 downloaded from https://www.gyan.dev/ffmpeg/builds/
> When ffmpeg is started from CygWin or Windows WSL the following happens:
> * It reports "error parsing debug value" and increases the debug level (verbosity of the messages printed to screen):
> $ ffmpeg.exe -y -v warning -i in.avs -c:v libx264 -crf 28 -c:a libvorbis -q:a 5 out.mkv

Can't repro here in WSL.

> Guessed Channel Layout for Input Stream #0.1 : stereo
> error parsing debug value

This message is printed when ffmpeg receives a 'd' key press and then 
some non-numeral presses.

Check if adding -nostdin suppresses the behaviour.


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