For now, we do 2.1 over 5.1, because that's what ALSA allows per default.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When this is done, *.conf files can be placed in that directory and they
will be processed by as if they were included directly.
A directory (typically /usr/share/alsa/alsa.conf.d/) has been
added into the distribution.
v2: Used existing conf syntax rather than processing via autotools
v3: Split file loading into separate function and made error handling
more consistent.
Signed-off-by: Colin Guthrie <colin@mageia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When "default" PCM and control definitions are overwritten by others
like PulseAudio setup, the original system-default defition is lost.
This is a problem when PA is temporarily (or intentionally) disabled
and user wants to use the default dmix.
This patch adds a new standard definition for the system-default,
"sysdefault". This can be used for fallbacks.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Having getenv directly in the function is not a good idea. Allow
configuration of the behaviour change in snd_pcm_param_choose() function
using alsa.conf. Use the environment variable LIBASOUND_COMPAT only
as fallback.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Some broken applications like Audacious don't set any timing parameters.
While the alsa-lib behaviour is to select the smallest period size and
biggest buffer size, the result is the generation of thousands
interrupts per second.
The default value in alsa.conf is 5000usec.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Addeed a new option "truncate" to indicate the behavior of creating
the output file. When it's true (the default), the file is overwritten
and truncated at creation. When false, the plugin tries to open a
unique file with a number suffix.
The global behavior of "file" and "tee" PCMs is defined via
defaults.pcm.file_truncate option. You can overwrite it in ~/.asoundrc.
The direct plugins have the automatic format-detection feature but it
wasn't enabled properly in the interface. Now you can pass the format
"unchanged" to make the plugin detect a proper format.
This will change the default format of some drivers, such as, HD-audio.
- add long card name to device description
- create empty PCM plugin to allow right hint description parsing
- reorder devices in alsa.conf
- make namehint more configurable (using default.namehint.showall switch)
- add two levels basic and exteded for hints to default configuration files
- do not show direct device aliases
- removed all known memory leaks
- add snd_device_name_hint() and snd_device_name_free_hint() functions
- add snd_ctl_iface_conf_name() functions
- do not accept parameters for the plugin definition without @args section
- add defaults.pcm.dmix.card/device and dsnoop.card/device definitions
- add hints for HDA-Intel.conf, pcm/dmix.conf, pcm/dsnoop.conf and alsa.conf
- add test/namehint test utility
- doxygen related cleanups
Introduce "max_periods" option to specify the max number of periods
per buffer to each plugin.
- When max_periods = -1, the fixed buffer size as the slave size is
used (old behavior).
- When max_periods = 0 (or 1), the number of periods is variable
between 2 and the slave buffer size.
- When max_periods greater than 2 is given, it specifies the max
periods of that pcm explicitly.
When no option is given in the PCM defintion, the value
"defaults.pcm.dmix_max_periods" is referred as default.
The default value is 0, as defined in alsa.conf.
You can override this in ~/.asoundrc or /etc/asound.conf as you like.
With the patch, dmix allows apps to use more flexible buffer sizes.
The max buffer size is unlimited, and the minimal buffer size is
(period size * 2). The buffer size is aligned to period size.
The period size is still bound to the period size of slave PCM.
To back to the old behavior (the fixed buffer size), you can set
defaults.pcm.dmix_variable_buffer false
in your configuration.
Fix the check of nonblock option for all hw layer.
Instead of passing in asound.conf, check the option in snd_pcm_hw_open()
so that the nonblock option is referred in the case of "type hw ..." style
definition, too.
- Support multi-card/device for dmix/dsnoop/dshare plugins
The unique ipc key is calculated based on card/device/sub index
- Clean up and share the code among all d* plugins
- Refer the defaults.pcm.* configuration
The base ipc_key number, ipc_gid and ipc_perm are referred.
Added a new "nonblock" option for hw layer. This controls the non-blocking
"open" mode as default.
This option is set to TRUE as the default configuration. If the old behavior
is preferred, set "defaults.pcm.nonblock" to 0 in /etc/asound.conf.
This defines two modem related pcm devices: "phoneline" is driver's pcm
reference, with "modem" the line will be "Hook-Off"ed automatically.
Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
"default" PCM can be card-specific.
The definition is moved to pcm/default.conf, and read on-demmand via
aliases.conf. The card config can override the default config.
Changed snd_config_hook_load_for_all_cards (to load also aliases).
Changed snd_config_search_alias routines (to follow aliases also in the middle of path).
Added private_data parameter for snd_config_hooks function.
Fixed the return value mess in the config parser routines.
The include file could begin with 'confdir:' which is replaced with /usr/share/alsa.
The snd_config_search_definitions looks for raw name at first (without suggested root).
Added snd_func_private_card_strtype function.
All configuration files moved to the src/conf directory.
Configuration files modified to use load-on-demand feature using hooks.
