PyAV 8.1.0 wheel fails to open a x11grab device

Created by: relent95

Overview

In PyAV 8.1.0 wheel, av.open() fails when a x11grab device is opened.

Expected behavior

It should succeed.

Actual behavior

A ValueError saying "no container format 'x11grab'" is raised.

Traceback:

Traceback (most recent call last):
  File "t.py", line 4, in <module>
    con = av.open(os.environ['DISPLAY'] + '.0', mode = 'r', format = 'x11grab',
  File "av/container/core.pyx", line 354, in av.container.core.open
  File "av/container/core.pyx", line 132, in av.container.core.Container.__cinit__
  File "av/format.pyx", line 90, in av.format.ContainerFormat.__cinit__
ValueError: no container format 'x11grab'

Investigation

It worked at least on PyAV 8.0.2. I guess that ffmpeg libraries(libavformat, libavdevice, ...) included in the wheel was not compiled with x11grab support. I noticed that python3 -m av --version says explicitly --disable-libxcb. I wonder if that's an intentional one. If it is, IMHO it would be better to be mentioned on the installation instruction.

Reproduction

Run the following test code.

import os
import av

con = av.open(os.environ['DISPLAY'] + '.0', mode = 'r', format = 'x11grab',
	options = {'video_size': '640x480', 'framerate': '30'})

Versions

• OS: Ubuntu 20.04
• PyAV runtime:

PyAV v8.1.0
git origin: git@github.com:PyAV-Org/PyAV
git commit: v8.1.0
library configuration: --disable-doc --disable-libxcb --disable-static --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-shared --enable-version3 --enable-zlib --prefix=/tmp/vendor
library license: GPL version 3 or later
libavcodec     58. 91.100
libavdevice    58. 10.100
libavfilter     7. 85.100
libavformat    58. 45.100
libavutil      56. 51.100
libswresample   3.  7.100
libswscale      5.  7.100

• PyAV build:

N/A(wheel binary)

• FFmpeg:

N/A(wheel binary)

Research

N/A

Additional context

N/A