In the normal mmap mode, the stream isn't started automatically even after
the data >= start_threshold has been written. However, in the
mmap-emulation mode, the stream is started because it uses
snd_pcm_write_areas() internally.
As a workaround for this inconsistency, start_threshold value is changed
dynamically in sw_parmams and mmap_commit callbacks in mmap-emul plugin.
Meanwhile, start_threshold for slave PCM is set to boundary so that only
this plugin (or the one over it) can control the start of the stream.
This will fix problems in some apps using pulse plugin in the mmap mode.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reported by Kevin Goodsell.
Summary: load_for_all_cards fails with existing configuration elements
In snd_config_hook_load_for_all_cards, the first call to
snd_config_search attempts to locate an existing configuration node with
the name of the driver. Typically none is found, and everything is
good. However, if such a node is located, the next line assumes it is a
leaf node with type 'string' and calls snd_config_get_string to fetch
the string value. If this fails, the entire hook is abandoned.
Because of this, setting something like the following in asoundrc:
cards.<driver name>.foo 0
is sufficient to disable the entire card-specific configuration.
As a concrete example, I have a HDA-Intel sound card. dmix.conf includes
a way to set period_size, period_time, and periods by using
configuration elements of the form cards.<driver name>.pcm.dmix.<var>.
In ~/.asoundrc I add
cards.HDA-Intel.pcm.dmix.period_size 1024
This will cause HDA-Intel.conf to fail to load, and the pcm defined in
default.conf will fail to find the device-specific pcm
cards.HDA-Intel.pcm.default, and fall back on the default pcm using
plughw. By attempting to configure dmix, I have disabled it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The contents of the snd_timer_query_ops structure are not going to be
changed, so we might as well declare is as constant. This change avoids
a warning if some ops structure is actually defined as const.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
The contents of the snd_pcm_scope_ops structure are not going to be
changed, so we might as well declare is as constant. This change is
backwards compatible, and avoids warnings if some ops structure is
actually defined as const.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
When adding a configuration node to another, check that the child node
does not already have a parent. Otherwise, the old parent's children
list would become corrupted.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Sending an Active Sensing message when closing a port can interfere with
the following data if the port is reopened and a note-on is sent before
the device's timeout has elapsed. Therefore, it is better to disable
this setting by default.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Add custom definitions for the AudioPhile "default" and "iec958" devices
so that output and input are routed to the correct PCM device.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Make sure that we do not crash when encountering configuration nodes
with a NULL string value, or that at least we run into an assert().
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
snd_config_add() checks for duplicate ids, but it was possible to create
duplicates by adding a note and changing the id afterwards with
snd_config_set_id(); so we have to add a check there, too.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Make sure that we do not crash when encountering configuration nodes
with a NULL id. Furthermore, since we cannot avoid having NULL ids
anyway, allow the id of a top-level node to be reset to NULL.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
The shared object may be still needed depending on the implementation
of hook-installation functions. When any hooks are registered in the
installation function, the dlobj has to be kept opened until closing
the PCM instance.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When decoding (N)RPN sequencer events into raw MIDI commands, the
extra_decode_xrpn() function had accidentally swapped the MSB and LSB
controller values of both the parameter number and the data value.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Running status cannot be using in the command immediately following
a system exclusive command, so we have to reset the running status
state in that case.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Extend the PCM-rate plugin protocol to allow the host to query the
supported sample rates. The protocol version is bumped to 0x010002,
and the version number negotiaion is slightly changed.
Now the plugin is supposed to fill the version it supports in return.
The old versioned plugins are still supported, but they may spew
version-mismatch warning prints.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Since some digital mics have the phase-inversion problem in one channel,
adding both channels for mono stream results in the noise.
Use route_policy copy to avoid that situation.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
So far, external ctl plugins don't change numid. Some apps expect the
non-zero numids with list, and the plugin doesn't work for them.
This patch adds a fake numid to each control based on the offset
number. The lookup with non-zero numid is supported but is pretty
inefficient. Eventually the plugin side may be optimized to look
at the numid, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The change that removed the Master controls for Xonar D2(X) cards was
reverted, so we don't need to use the softvol plugin anymore ...
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
The hd-audio driver may have no analog stream but only a digital one
which has usually non-zero device number. To avoid the bogus namehint,
set hint.device 0 for pcm.default (it wasn't handled properly due to
asym).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The documentation for the latency parameter of pcm_set_params() says
that the value 0 uses an optimal value. This is wrong, as there is no
special handling for 0, and the result will be a buffer of minimal size.
Therefore, remove that incorrect statement.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Shut up misc compile warnings from gcc:
pcm_plug.c: In function ‘snd_pcm_plug_change_mmap’:
pcm_plug.c:608: warning: enumeration value ‘SND_PCM_ACCESS_MMAP_INTERLEAVED’ not handled in switch
pcm_plug.c:608: warning: enumeration value ‘SND_PCM_ACCESS_MMAP_NONINTERLEAVED’ not handled in switch
pcm_plug.c:608: warning: enumeration value ‘SND_PCM_ACCESS_MMAP_COMPLEX’ not handled in switch
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The revents parameter is ambiguously defined whether it's a pointer
to a single event or an arary.
This patch defines the behavior of revents more strictly (in the
function description): it's a pointer of a single event.
Also fixed snd_pcm_wait_nocheck() to follow that rule.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
* added support for including pcm stream params in the output filename
* added support for piping the stream to a shell command if the filename
string starts with a pipe char
Signed-off-by: Pavel Hofman <pavel.hofman@insite.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The system-wide default PCM config works now (by the fix of plug
mmap_emul support), thus no card-specific hackish config is needed
for GUS.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the slave PCM supports only another type of interleaved format,
plug did convert it wrongly and resulted in an unused access type
error. For example, if a slave PCM supporst only RW_NONINTERLEAVE
access and you try to play an interleaved format file, it resulted
in an error.
This patch fixes the conversion rule.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
