alsa-project/alsa-lib issue #96 was opened from orbea:

OS: `Slackware64-current` alsa-lib: `1.2.4` mpv: https://github.com/mpv-player/mpv/commit/172146e9f7a231b5de21921d883612d18b1... yt-dlc: `2020.10.31`

When streaming music from bandcamp.com with alsa it will fail with a broken pipe when automatically changing tracks at the end of a track. This will not happen if the track is skipped. ``` $ mpv https://actnoir1.bandcamp.com/album/shape-a-new-start

Playing: https://actnoir1.bandcamp.com/track/shatterproof-beauty (+) Audio --aid=1 (mp3 2ch 44100Hz) AO: [alsa] 44100Hz stereo 2ch float A: 00:05:20 / 00:05:21 (100%) Cache: 0.0s

Playing: https://actnoir1.bandcamp.com/track/set-fire A: 00:05:20 / 00:05:21 (100%) Cache: 0.0s [ao/alsa] snd_pcm_status: Broken pipe A: 00:05:20 / 00:05:21 (100%) Cache: 0.0s (+) Audio --aid=1 (mp3 2ch 44100Hz) [ao/alsa] snd_pcm_status: Broken pipe [ao/alsa] snd_pcm_status: Broken pipe [ao/alsa] snd_pcm_status: Broken pipe mpv: ../audio/out/buffer.c:585: _Bool ao_play_data(struct ao *): Assertion `space >= 0' failed. The process was killed by SIGABRT: Aborted ``` mpv log: [mpv.log](https://github.com/alsa-project/alsa-lib/files/5485135/mpv.log) alsa-info log: [alsa-info.log](https://github.com/alsa-project/alsa-lib/files/5485141/alsa-info.log)

I bisected this and found the first bad commit. ``` $ git bisect good 4f90392f07e8822d1984ed990f622ad36022a4a3 is the first bad commit commit 4f90392f07e8822d1984ed990f622ad36022a4a3 Author: Jaroslav Kysela perex@perex.cz Date: Fri Oct 9 19:57:57 2020 +0200

pcm: fix the snd_pcm_plugin_status() avail and delay fields

The avail and delay fields in the returned status structure does not reflect the actual hw_ptr/appl_ptr. This change correct this.

TODO: Unfortunately, the delay might contain also information about extra hardware / buffering delay which is hidden with this change.

Link: https://lore.kernel.org/alsa-devel/d9c1f37e-5c8d-f289-270e-c6cda7a56ce3@axis... Reported-by: Jonas Holmberg jonashg@axis.com Tested-by: Jonas Holmberg jonashg@axis.com Signed-off-by: Jaroslav Kysela perex@perex.cz

src/pcm/pcm_plugin.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) ``` 4f90392f07e8822d1984ed990f622ad36022a4a3

Issue URL : https://github.com/alsa-project/alsa-lib/issues/96 Repository URL: https://github.com/alsa-project/alsa-lib