> Does mplayer give any more interesting errors?
Oh, I didn't notice it at first, but now that you ask, yes it does:
after something like a timeout period it says:
AO: [pulse] Init failed: Timeout
Failed to initialize audio driver 'pulse'
And lo and behold if I start it with `mplayer -ao none <FILE>`, the
video plays just fine (whether Theora, MPEG2, or H.264).
So maybe I was barking up the wrong tree and the problem was on the
audio side all this time. This machine is running Debian testing,
which seems to have selected Pipewire for me.
% ps auxw|grep pipewire
monnier 1810 0.0 0.1 46096 9396 ? Ssl jan18 0:00
/usr/bin/pipewire
monnier 1813 0.0 0.0 34436 6412 ? Ssl jan18 0:00
/usr/bin/pipewire -c filter-chain.conf
monnier 1818 0.0 0.1 41540 10460 ? Ssl jan18 0:00
/usr/bin/pipewire-pulse
monnier 7472 0.0 0.0 8276 2304 pts/6 SN+ 16:40 0:00 grep
pipewire
%
IIUC `pipewire-pulse` is the daemon which should let PulseAudio client
connect to Pipewire, so I don't know why mplayer's `pulse` backend is
not happy. I know very little about Pipewire (or GNU/Linux audio in
general for that matter), so I'd welcome help diagnosing this part as well.
I tried to use `mplayer -ao alsa <FILE>` but it ends up just sitting there,
without any output nor error after the first few information lines
(which are always the same):
% mplayer -ao alsa icfp23-explicit-refinement-types.mkv
MPlayer 1.5+svn38446-1 (Debian)do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.
Playing icfp23-explicit-refinement-types.mkv.
libavformat version 60.16.100 (external)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (opus), -aid 0, -alang eng
VIDEO: [H264] 1280x720 0bpp 30.000 fps 0.0 kbps ( 0.0 kbyte/s)
libva info: VA-API version 1.20.0
libva info: Trying to open /usr/lib/i386-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_20
libva error: /usr/lib/i386-linux-gnu/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
libva info: Trying to open /usr/lib/i386-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_8
libva error: /usr/lib/i386-linux-gnu/dri/i965_drv_video.so init failed
libva info: va_openDriver() returns -1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 60.31.102 (external)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Clip info:
COMPATIBLE_BRANDS: iso6avc1mp41
MAJOR_BRAND: dash
MINOR_VERSION: 0
ENCODER: Lavf60.16.100
Load subtitles in ./
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
[opus @ 0xf6d9bb80]Could not update timestamps for skipped samples.
AUDIO: 48000 Hz, 2 ch, floatle, 0.0 kbit/0.00% (ratio: 0->384000)
Selected audio codec: [ffopus] afm: ffmpeg (FFmpeg opus)
==========================================================================
My best guess is that it's waiting for Pipewire to release the audio device?
With `ao oss`, it goes a bit further (i.e. it opens up the actual
window where the window should be played) but still ends up sitting
there waiting for something and not playing anything.
Stefan
