On Tue, 11 Mar 2025 14:14:47 +0100, Alexandre Ratchov <a...@caoua.org> wrote: > > On Tue, Mar 11, 2025 at 01:20:03PM +0100, Emiel Kollof wrote: > > ffmpeg0: xrun, pause cycle > > ffmpeg0: xrun, pause cycle > > FWIW, these traces show that ffmpeg didn't provide samples to play (or > didn't consume recorded samples). So sndiod paused it. This is not > related to usb. > > > rsnd/0: rec hw xrun, rused = 480 / 3840 > > > > This debug trace shows that the kernel has produced 480 samples > (i.e. one block) that sndiod hasn't fetched yet. As there's space for > 3840 samples, this is not a problem. > > As certain usb interfaces don't run at a constant sample rate (from > host point of view), it's OK to have small data bursts. > > > rsnd/0: play hw xrun, pused = 3360 / 3840 > > Similar, for playback. There are still 3360 so the buffer isn't empty > yet. >
FWIW I do have almost the same clicking and popping when play some flac file
with: Stream #0:0: Audio: flac, 192000 Hz, stereo, s32 (24 bit)
it doesn't happens on each attemtp, but anying enough. I can reproduce it
via mpd, ffplay and mplayer. At debug log of sndio I do have:
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
rsnd/2: rec hw xrun, rused = 480 / 7680
mpd0: xrun, pause cycle
rsnd/2: play hw xrun, pused = 7200 / 7680
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
rsnd/2: rec hw xrun, rused = 480 / 7680
mpd0: xrun, pause cycle
rsnd/2: play hw xrun, pused = 7200 / 7680
mpd0: xrun, pause cycle
rsnd/2: rec hw xrun, rused = 480 / 7680
mpd0: xrun, pause cycle
rsnd/2: play hw xrun, pused = 7200 / 7680
mpd0: xrun, pause cycle
rsnd/2: rec hw xrun, rused = 480 / 7680
rsnd/2: play hw xrun, pused = 7200 / 7680
rsnd/2: rec hw xrun, rused = 480 / 7680
mpd0: xrun, pause cycle
rsnd/2: play hw xrun, pused = 7200 / 7680
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
mpd0: xrun, pause cycle
--
wbr, Kirill
