Bug#739237: FTBFS with libav10

[Moritz Muehlenhoff]

Package: ffmpeg2theora
Severity: important

Hi,
your package fails to build from source against libav 10 (currently
packaged in experimental). This bug will become release-critical
at some point when the libav10 transition starts.

Migration documentation can be found at
https://wiki.libav.org/Migration/10

Cheers,
        Moritz

Checking for oggkate... (cached) yes
Checking for C header file iconv.h... yes
Checking for C library iconv... no
scons: done reading SConscript files.
scons: Building targets ...
gcc -o src/subtitles.o -c -DPACKAGE_VERSION=\"0.29\" -DPACKAGE_STRING=\"ffmpeg2theora-0.29\" -DPACKAGE=\"ffmpeg2theora\" -D_FILE_OFFSET_BITS=64 -DHAVE_KATE -DHAVE_OGGKATE -DHAVE_ICONV -I. src/subtitles.c
In file included from src/subtitles.h:7:0,
                 from src/subtitles.c:39:
src/ffmpeg2theora.h:65:5: error: unknown type name 'ReSampleContext'
     ReSampleContext *audio_resample_ctx;
     ^
scons: *** [src/subtitles.o] Error 1
scons: building terminated because of errors.
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/jmm/av10/ffmpeg2theora-0.29'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2