[vlc-devel] how to output ffmpeg message in vlc

[Sergey Radionov]

On 20.03.2012 10:15, Rafaël Carré wrote:
> Le 2012-03-19 23:13, haibin_shen at sina.com a écrit :
>>
>>
>> Hi, everyone,
>> I'm working on enable dxva2 on windows, and I need get ffmpeg's debug
>> message. but I can't get them in vlc logger window or message dialog, I
>> just get vlc's debug message. I have tried to add "--enable-debug
>> --disable-optimizations" in vlc configure, and add "--enable-debug=3" in
>>   ffmpeg's configure, but it doesn't work, I only get vlc's debug messge.
>>
>> anybody can give me any suggestion on how to get ffmepg's debug log? thanks a lots.
>>
>> best regards,
>
> ffmpeg messages go to stderr, not sure what happens on Windows.
on windows it's go to /dev/null, i.e. nowhere..
>
> try vlc --ffmpeg-debug option?
to view libav messages under windows the only way is to add something like OutputDebugString to 
vlc\modules\codec\avcodec\avutil.h : LibavutilCallback and use 
http://technet.microsoft.com/en-us/sysinternals/bb896647

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-- 
With best wishes,
Sergey Radionov (aka RSATom).
ICQ UIN #107407103.