[Libav-user] Building with MSVC toolchain resulting inseekingproblem?

Don Moir donmoir at comcast.net
Tue Mar 12 20:32:19 CET 2013

From: John Orr 

To: libav-user at ffmpeg.org 
Sent: Tuesday, March 12, 2013 3:08 PM
Subject: Re: [Libav-user] Building with MSVC toolchain resulting inseekingproblem?

On 3/12/2013 2:51 PM, Don Moir wrote:

>>The main motivation for using MSVC to build ffmpeg at this point for me would be to be able to debug ffmpeg from MSVC. Does this work or not ? 

>It mostly works for me when I disabled Frame Pointer Omission: /Oy- 


>I also set the debug information format to use PDB: /Zi


>The configuration script seem to generate both -Oy and -Oy- flags (as well as both -Zi and -Z7),
>so, in config.mak, I had to manually remove -Oy and -Z7 from CFLAGS and replace -Z7 in config.mak with -Zi.
>I don't yet understand the configuration script well enough to know how to fix that properly, so I did it manually.

>The Visual Studio 2010 debugger is able to navigate through calls through the ffmpeg dlls this way. 
>Sometimes it does not see the local variables.

Thanks John. Maybe this should be added to the documentation somewhere or other steps taken based on this.

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