Hi Martin,

Could you send me the whole modified file, thanks.

Robert.

On Thu, Feb 10, 2011 at 9:45 AM, Martin von Gagern
<[email protected]> wrote:
> Hi!
>
> As reported on http://bugs.gentoo.org/347481 the osg 2.8.3 release (and
> current trunk probably as well, as far as I can tell) has problems
> compiling against recent ffmpeg snapshots. The critical commit there is
> SVN revision 25652 from 2010-11-02, which is now in git:
>
> http://git.ffmpeg.org/?p=ffmpeg.git;a=commitdiff;h=262d1c5d2206467809fd
>
> By default it introduces a preprocessor macro called SampleFormat:
>
> #define SampleFormat AVSampleFormat
>
> As a consequence, all references to SampleFormat in osg will be
> rewritten, even if they refer to some other C++ namespace. This leads to
> errors like this:
>
> error: ‘AVSampleFormat’ in class ‘osg::AudioStream’ does not name a type
>
> Luckily the commit also provides a means to avoid the definition. Simply
> include this line before including the av*.h from ffmpeg:
>
> #define FF_API_OLD_SAMPLE_FMT 0
>
> I'd suggest you include this line in FFmpegHeaders.hpp:
>
> --- OpenSceneGraph-2.8.3.orig/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp
> +++ OpenSceneGraph-2.8.3/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp
> @@ -6,6 +6,7 @@
>  extern "C"
>  {
>  #define __STDC_CONSTANT_MACROS
> +#define FF_API_OLD_SAMPLE_FMT 0
>  #include <errno.h>    // for error codes defined in avformat.h
>  #include <stdint.h>
>  #include <avcodec.h>
>
> You can also download this patch from the Gentoo bug report:
> http://bugs.gentoo.org/attachment.cgi?id=261477
> Feel free to include this in the osg sources.
>
> If you want to reply to this mail, please cc a personal copy to me, as I
> won't follow list mails too closely.
>
> Greetings,
>  Martin von Gagern
>
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>
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