[Bf-committers] Final FFMPEG compatibility fix (hopefully)

[Ralf Hölzemer]

Hi Peter,

I am maintaining daily builds of blender for Ubuntu in a PPA at Launchpad.
Sorry to be the odd man out here, but I still have problems building
blender on Ubuntu Oneiric, which uses libav 0.7~beta2 according to the
package overview in Launchpad [1].

libavcodec/version.h states:

#define LIBAVCODEC_VERSION_MAJOR 53
#define LIBAVCODEC_VERSION_MINOR  3
#define LIBAVCODEC_VERSION_MICRO  0

The builds fail with following error message:

/build/buildd/blender-2.57.1+svn36973~oneiric1/source/blender/blenkernel/intern/writeffmpeg.c:
In function 'ffmpeg_property_add':
/build/buildd/blender-2.57.1+svn36973~oneiric1/source/blender/blenkernel/intern/writeffmpeg.c:1056:9:
error: incompatible types when assigning to type 'int' from type
'const union <anonymous>'
/build/buildd/blender-2.57.1+svn36973~oneiric1/source/blender/blenkernel/intern/writeffmpeg.c:1061:9:
error: incompatible types when assigning to type 'float' from type
'const union <anonymous>'

You can see a full buildlog at [2].

Cheers,
Ralf

[1] http://packages.ubuntu.com/oneiric/ffmpeg
[2] https://launchpadlibrarian.net/72565355/buildlog_ubuntu-oneiric-amd64.blender_2.57.1%2Bsvn36973~oneiric1_FAILEDTOBUILD.txt.gz

2011/5/28 Dalai Felinto <dfelinto at gmail.com>:
> Thanks Peter, it all working now (windows 32 and 64).
>
> 2011/5/27 Peter Schlaile <peter at schlaile.de>
>
>> Hi,
>>
>> just have commited the final compatibility fix for ffmpeg using a seperate
>> header file that handles all the version cruft. (located in
>> intern/ffmpeg/ffmpeg_compat.h )
>>
>> What makes it very nice: you can now write your code using the latest
>> API version of ffmpeg GIT and can still be sure, that it will compile on
>> older versions. (without those nasty #ifdefs all over the place.)
>>
>> You still have to check though, when you use interface functions, that
>> where *not* used within the rest of the code and add compatibility macros
>> to ffmpeg_compat.h appropriately.
>>
>> I hope, build doesn't break anymore.
>>
>> If it doesn't work out, please send me an email. (And: if you do
>> so, tell me the exact ffmpeg version you are using, otherwise, I can't
>> check!)
>>
>> Cheers,
>> Peter
>>
>> P.S.: Sorry for the inconvenience, should have solved that the first time
>>       this way.
>>
>> ----
>> Peter Schlaile
>>
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