[Ffmpeg-devel] av_log

Michel Bardiaux mbardiaux
Wed Mar 15 10:48:21 CET 2006

Mike Melanson wrote:
> Marcel Wolf wrote:
>> Mike
>> What turns the log on? Where do I find it? Or is it always up
>     av_log(), per my understanding, is just our version of printf(). 

fprintf(stderr), actually. stdin/stdout are supposedly reserved for pipe 
protocols in libavformat.

> I 
> think its default mode in FFmpeg is to just printf() to the console. 
> However, if a client app wants to re-route it, say, to a graphical 
> dialog box, it has that option as well.
>     Short answer: Use av_log as instructed in my last email and you 
> should get console output. grep for av_log through the .h files to find 
> out how it is defined.

Michel Bardiaux
R&D Director
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