Arch Linux User Repository

@dkibet Sorry, but I cannot reproduce your issue. Everything is building and working fine here.

First of all, make sure that you're building in a clean tree (use makepkg -C option). Also, you can try to reinstall ffmpeg. If it's still not building, try to build it a clean chroot and it should work, preferably with all aur dependencies also built from a clean chroot.

@dbermond No, I am using the one from the repos

EDIT: I tried several times and got this once.

/usr/bin/ld: demux/demux_mkv.c.25.o: undefined reference to symbol 'av_lzo1x_decode@@LIBAVUTIL_56'
/usr/bin/ld: /usr/lib/libavutil.so.56: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

../player/audio.c: In function ‘reinit_audio_filters_and_output’:
../player/audio.c:253:33: warning: ‘%s’ directive output may be truncated writing up to 127 bytes into a region of size between 66 and 76 [-Wformat-truncation=]
     snprintf(buf, buf_sz, "%dHz %s %dch %s", rate,
                                 ^~
              ch, channels.num, af_fmt_to_str(format));
              ~~                  
../player/audio.c:253:27: note: directive argument in the range [0, 255]
     snprintf(buf, buf_sz, "%dHz %s %dch %s", rate,
                           ^~~~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:873,
                 from ../mpv_talloc.h:2,
                 from ../player/audio.c:26:
/usr/include/bits/stdio2.h:67:10: note: ‘__builtin___snprintf_chk’ output 10 or more bytes (assuming 139) into a destination of size 80
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

@dkibet Package is building fine. Do you have a modified ffmpeg package?

I am getting this error

/usr/bin/ld: demux/demux_mkv.c.25.o: undefined reference to symbol 'av_lzo1x_decode@@LIBAVUTIL_56'
/usr/bin/ld: /usr/lib/libavutil.so.56: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

@daswf852 I cannot reproduce your issue. Package is building, installing and working fine for me.

Something seems to be wrong in your system. The file 'vk_icd.h' is owned by package vulkan-headers, and not by vulkan-icd-loader. There is no conflict here. Please make sure that your system is up-to-date.

I'm getting the following error while installing:
error: failed to commit transaction (conflicting files)
vulkan-headers: /usr/include/vulkan/vk_icd.h exists in filesystem (owned by vulkan-icd-loader)
Errors occurred, no packages were upgraded.
Error installing repo packages

@Cysioland mpv 0.28.0 requires: libavutil>=56.6.0, libavcodec>=58.8.0, libavformat>=58.1.0, libswscale>=5.0.0, libavfilter>=7.0.0 and libavresample>=4.0.0.

See here: https://github.com/mpv-player/mpv/blob/dfac83a81d9fd68d8d856ae460fc5da885714ef5/wscript#L414-L421

These are provided by ffmpeg git master (ffmpeg-git or some variant).

Stable ffmpeg releases (like the one you mentioned, ffmpeg-full-nvenc, and the repository ffmpeg) doesn't provide these .so libraries version numbers. They provide lower versions and it will cause failure in building mpv. Just try to build it using a stable ffmpeg release and you will see.

Why does it need ffmpeg-git? Is there any reason why it perhaps couldn't run with ffmpeg-full-nvenc?

@fitu996 vapoursynth from official repositories cannot be installed with ffmpeg-git due to dependency break on .so libraries version number. It needs ffmpeg from official repositories, which in turn have a lower .so library version number.

Since here we need ffmpeg-git, it's also necessary to compile vapoursynth against ffmpeg-git in order for it to work with the current ffmpeg git master .so libraries version number. Hence, using vapoursynth-git here.

Why it need vapoursynth-git?

It's seems that it can build using vapoursynth in official repo. But I have not test it yet.