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The Advanced Linux Sound Architecture (ALSA) - library
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Takashi Sakamoto 351a237b2d mixer: add documentation about postcondition of removal event processing 
PulseAudio and PipeWire seems to appear including careless code to
process events of mixer element in implementation of mixer class.

 * https://lore.kernel.org/alsa-devel/YrbxZ2b+3rIdi7Ut@workstation/

They register own implementation of mixer class. At addition event,
they attach own mixer element into hcontrol element. However at removal
event, they never detach the mixer element from hcontrol element. They
hit assertion in mixer API internal due to unsatisfied postcondition.

This commit adds documentation about postcondition of removal event
processing so that developer for implementation of mixer class easily
realize the way to satisfy the postcondition.

Fixes: https://github.com/alsa-project/alsa-lib/pull/244
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2022-06-27 13:38:25 +02:00
.github/workflows github actions: move to checkout@v3 2022-05-19 12:38:18 +02:00
alsalisp Change FSF address (Franklin Street) 2017-11-14 14:29:26 +01:00
aserver pcm: fix for the unitialized write buffer 2022-05-20 08:47:07 +02:00
doc ucm: add initial doxygen documenation 2021-12-01 10:33:44 +01:00
include output: include stdarg.h 2022-06-17 10:25:39 +02:00
m4 Update the attributes.m4 macro file from xine 2020-01-03 19:13:13 +01:00
modules mixer: simple module: python 3.10 PyTuple_SET_ITEM() fix 2022-05-20 10:03:10 +02:00
src mixer: add documentation about postcondition of removal event processing 2022-06-27 13:38:25 +02:00
test conf: introduce snd_config_load_string() 2021-12-01 10:18:58 +01:00
utils utils/alsa.m4: another quick fix for the brackets 2021-04-14 08:08:43 +02:00
.gitignore initial version of .travis.yml file 2018-10-24 16:07:58 +02:00
acinclude.m4 fixed for the recent autoconf. 2004-01-26 15:52:17 +00:00
ChangeLog * update to libtool 1.3.3 1999-07-22 12:18:42 +00:00
configure.ac Release v1.2.7.1 2022-06-17 11:42:05 +02:00
COPYING Change FSF address (Franklin Street) 2017-11-14 14:29:26 +01:00
gitcompile gitcompile: fix 32 bit compilation support 2022-05-20 08:47:07 +02:00
INSTALL pcm: Add thread-safety to PCM API 2016-07-11 15:25:30 +02:00
Makefile.am Makefile: Add README.md to EXTRA_DIST 2020-12-10 10:37:13 +01:00
MEMORY-LEAK Initial version 2003-02-04 14:56:07 +00:00
NOTES Change assert condition in error message handler 2007-10-24 12:53:08 +02:00
README.md README: Add link to GitHub Actions 2022-05-19 12:47:24 +02:00
TODO Added snd_config_load_override(). 2002-01-09 21:28:15 +00:00

README.md

alsa-lib

Advanced Linux Sound Architecture (ALSA) project

Build alsa-lib

The alsa-lib is a library to interface with ALSA in the Linux kernel and virtual devices using a plugin system.

The up-to-date reference generated from sources can be accessed here:

http://www.alsa-project.org/alsa-doc/alsa-lib/

You may give a look for more information about the ALSA project to URL http://www.alsa-project.org.

Submitting patches

The preferred way to submit patches is by sending them by email to the alsa-devel mailing list. Sending mail to the list requires subscription, subscribe here: https://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Add Takashi Iwai <tiwai@suse.de> and/or Jaroslav Kysela <perex@perex.cz> to Cc so that your patch won't be missed.

Patches are also accepted as GitHub pull requests.