[FFmpeg-trac] #10349(undetermined:new): ffmpeg fails to accept pactl's module-combine-sink as input

[FFmpeg]

#10349: ffmpeg fails to accept pactl's module-combine-sink as input
-------------------------------------+-------------------------------------
             Reporter:  betlog       |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  pulseaudio   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by betlog):

 sample output:

 user at betlogbeast:~$ /home/user/documents/scripts/video/_recordDesktop-
 pactl-module-combine-sink-TEST.sh
 #!/bin/bash -v

 pulseaudio --start

 pactl unload-module module-combine-sink

 pactl list sinks short
 0       alsa_output.pci-0000_01_00.1.hdmi-stereo        module-alsa-card.c
 s32le 2ch 48000Hz       IDLE
 1       alsa_output.pci-0000_00_1f.3.analog-stereo      module-alsa-card.c
 s32le 2ch 48000Hz       RUNNING
 2       echo-cancel-sink        module-echo-cancel.c    float32le 2ch
 48000Hz   IDLE
 3       isolated-game-sink      module-virtual-sink.c   float32le 2ch
 48000Hz   IDLE
 4       isolated-discord-sink   module-virtual-sink.c   float32le 2ch
 48000Hz   IDLE

 slaves=$(pactl list sinks short|awk '{print $2}'|head -n2|tr '\n' ','|sed
 's|,$||')
 echo "$slaves"
 alsa_output.pci-0000_01_00.1.hdmi-stereo,alsa_output.pci-0000_00_1f.3
 .analog-stereo

 pactl load-module module-combine-sink \
 sink_name="combine-sink" \
 sink_properties=device.description="combine-sink" \
 slaves=$slaves
 28

 pactl list sinks short|grep --color 'combine-sink\|$'
 0       alsa_output.pci-0000_01_00.1.hdmi-stereo        module-alsa-card.c
 s32le 2ch 48000Hz       RUNNING
 1       alsa_output.pci-0000_00_1f.3.analog-stereo      module-alsa-card.c
 s32le 2ch 48000Hz       RUNNING
 2       echo-cancel-sink        module-echo-cancel.c    float32le 2ch
 48000Hz   IDLE
 3       isolated-game-sink      module-virtual-sink.c   float32le 2ch
 48000Hz   IDLE
 4       isolated-discord-sink   module-virtual-sink.c   float32le 2ch
 48000Hz   IDLE
 10      combine-sink    module-combine-sink.c   s32le 2ch 48000Hz
 IDLE

 ffmpeg -f pulse -i combine-sink -map 0:a "${0%.*}.mp3"
 ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg
 developers
   built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
   configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1
 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
 --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
 --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite
 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
 libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-
 libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus
 --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-
 libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-
 libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-
 libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
 libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq
 --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl
 --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg
 --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883
 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
   WARNING: library configuration mismatch
   avformat    configuration: --prefix=/usr --extra-
 version=0ubuntu0.22.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64
 -linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-
 gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite
 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
 libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-
 libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus
 --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-
 libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-
 libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-
 libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
 libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq
 --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl
 --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg
 --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883
 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 --enable-version3 --disable-doc --disable-programs --enable-libaribb24
 --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-
 libtesseract --enable-libvo_amrwbenc --enable-libsmbclient
   libavutil      56. 70.100 / 56. 70.100
   libavcodec     58.134.100 / 58.134.100
   libavformat    58. 76.100 / 58. 76.100
   libavdevice    58. 13.100 / 58. 13.100
   libavfilter     7.110.100 /  7.110.100
   libswscale      5.  9.100 /  5.  9.100
   libswresample   3.  9.100 /  3.  9.100
   libpostproc    55.  9.100 / 55.  9.100
 combine-sink: Input/output error
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10349#comment:1>
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