[vlc-devel] 回复:Re: how to output ffmpeg message in vlc

haibin_shen at sina.com haibin_shen at sina.com
Tue Mar 20 08:26:03 CET 2012

Yes, I also found avutil.h has been remvoed from since vlc 2.0.1. I get avutil.h from vlc 2.0.0 and patch to 2.1.0, now it can work, I get ffmpeg debug message in logger interface, command like that: vlc --ffmpeg-debug=3 c:\test.avi. debug message in logger interface window.
best regards.

----- 原始邮件 -----
发件人:Rafaël Carré <funman at videolan.org>
收件人:Mailing list for VLC media player developers <vlc-devel at videolan.org>
主题:Re: [vlc-devel] how to output ffmpeg message in vlc
日期:2012年03月20日 14点22分

Le 2012-03-20 00:55, Sergey Radionov a écrit :
> 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
I think that piece of code is now gone?
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