[FFmpeg-user] Latest GIT version doesn't compile with libvpx_vp9 encoder

[ZikZak]

~/GIT/ffmpeg# rm -fv libavcodec/*vpx*.[do]
removed ‘libavcodec/libvpxdec.d’
removed ‘libavcodec/libvpxdec.o’
removed ‘libavcodec/libvpxenc.d’
removed ‘libavcodec/libvpxenc.o’

~/GIT/ffmpeg# make
CC      libavcodec/libvpxdec.o
CC      libavcodec/libvpxenc.o
AR      libavcodec/libavcodec.a
LD      ffmpeg_g
libavcodec/libavcodec.a(libvpxdec.o): In function `vpx_init':
/root/GIT/ffmpeg/libavcodec/libvpxdec.c:57: undefined reference to
`vpx_codec_vp8_dx_algo'
/root/GIT/ffmpeg/libavcodec/libvpxdec.c:57: undefined reference to
`vpx_codec_vp8_dx_algo'
libavcodec/libavcodec.a(libvpxenc.o): In function `vp8_init':
/root/GIT/ffmpeg/libavcodec/libvpxenc.c:1180: undefined reference to
`vpx_codec_vp8_cx'
collect2: error: ld returned 1 exit status
Makefile:107: recipe for target 'ffmpeg_g' failed
make: *** [ffmpeg_g] Error 1


VP9 was dropped by configure and I was not able to find in config.log why
it did so, onlythe output of configure with enabled encoders told me that
VP9 would not be built.

On 15 October 2017 at 22:26, Moritz Barsnick <barsnick at gmx.net> wrote:

> On Sun, Oct 15, 2017 at 21:40:31 +0200, ZikZak wrote:
> > And result of the make:
> >
> > AR      libavdevice/libavdevice.a
> > AR      libavfilter/libavfilter.a
> > AR      libavformat/libavformat.a
> > AR      libpostproc/libpostproc.a
> > AR      libswresample/libswresample.a
> > AR      libavutil/libavutil.a
> > AR      libswscale/libswscale.a
> > AR      libavcodec/libavcodec.a
> > LD      ffmpeg_g
> > libavcodec/libavcodec.a(libvpxdec.o): In function `vpx_init':
> > /root/GIT/ffmpeg/libavcodec/libvpxdec.c:57: undefined reference to
> > `vpx_codec_vp8_dx_algo'
> > /root/GIT/ffmpeg/libavcodec/libvpxdec.c:57: undefined reference to
> > `vpx_codec_vp8_dx_algo'
> > libavcodec/libavcodec.a(libvpxenc.o): In function `vp8_init':
> > /root/GIT/ffmpeg/libavcodec/libvpxenc.c:1180: undefined reference to
> > `vpx_codec_vp8_cx'
> > collect2: error: ld returned 1 exit status
> > Makefile:107: recipe for target 'ffmpeg_g' failed
> > make: *** [ffmpeg_g] Error 1
> >
> > Although libvpx_vp8 was the only encoder accepted by configure.
>
> Did compiling the libvpx code give warnings about
> vpx_codec_vp8_dx_algo? (This is the linker not finding that symbol.) A
> quick check in the libvpx repo tells me that symbol should still exist.
> Perhaps your compile of libvpx went terribly wrong (which could explain
> the missing of vp9).
>
> To repeat only the build of libvpx support (and in order to see the
> warnings again), do
> $ rm -fv libavcodec/*vpx*.[do]
> $ make
>
> Moritz
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