get_dev_name() checks wrongly the device_output, and it doesn't check
properly the case when only device is set and device_input and output
are unset. This resulted in listing of non-existing HDMI device, for
example. The patch fixes both issues.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Increase the components array size from 80 to 128 chars.
The string there is supposed to be null-terminated, so it can cover
the smaller array size in the older version, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The softvol plugin does in-place sample recalculation. The access type
cannot be changed like in linear plugins. Remove access type change
in refine functions.
This bug was detected with PulseAudio on Sony PS3 platform.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
As proposed in http://mailman.alsa-project.org/pipermail/alsa-devel/2008-June/008558.html
the snd_pcm_avail() and snd_pcm_avail_delay() functions are now available
to get accurate stream position in a straight way. The snd_pcm_avail_delay()
function was added to ensure full sync between avail and delay values. It's
actually implemented using delay() + avail_update() calls but it might be
changed in future.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The simpler mixer interface is not legacy, so the header file shouldn't claim
otherwise.
Fixes bug#3569
From: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
snd_pcm_delay() is for synchronization purposes, it returns the overall latency
of the stream, not just the latency induced by the hardware playback buffer.
The documentation is a bit misleading about this fact, and some people already
misunderstood it. So let's reword this to make the explanation clearer and
explicit.
This is a result of the discussions of the thread this mail belongs to:
http://mailman.alsa-project.org/pipermail/alsa-devel/2008-June/008456.html
From: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The plug PCM copies the 'mode' field from the slave PCM. If blocking mode is
enabled for the plug PCM the mode is subsequently overwritten with the original
requested 'mode'. If non-blocking mode is requested this does not happen.
Because the hw PCM synthesizes the 'mode' from the actual file descriptor flags
no SND_PCM_NO_xxx will ever be set for it. This has the effect that the 'mode'
of the plug PCM will also not include those flags anymore -- unless they are
overwritten as mentioned above. This basically means SND_PCM_NO_xxx is ignored
for plug:hw:4711 style device strings opened in non-blocking mode.
You can easily test this with "aplay --channels 7 --disable-channels -f S16_LE
-r 44100 -D plug:hw:0" on a device that cannot do 7 channels. Normally this
call should fail, however if you add "-N" to the command line this call will
succeed.
This patch simply copies the SND_PCM_NO_xxx flags back into the 'mode' field in
case we don't overwrite it with the original anyway.
Probably closes bug 3571 for good.
From: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Updated IEC958 consumer status channel definitions according
to the third edition of IEC60958-3 spec.
Signed-off-by: Pawel Moll <pawel.moll@st.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Make snd_pcm_plugin_rewind()/_forward() actually return how much has
been rewound/forwarded instead of how much could have been
rewounded/forwarded. This makes the code actually do what the
documentation of snd_pcm_rewind() suggests.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This minor patch fixes the type of the sframes variable in
snd_pcm_plugin_forward(). With this fix we need to cast less and the
code is less confusing.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The clamping of the input parameter in snd_pcm_rewind()/_forward() is
in the wrong direction.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When the resolution is set to 2, a boolean control is created as a
mute switch instead of a volume control.
Also, fixed the possible zero-division error.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The program uses snd_pcm_format_width() wrongly to calculate the sample
size. It must be snd_pcm_format_physical_width() instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The i386 and x86-64 dmix may cause segfaults when 3-bytes formats are used
due to btsl asm code, which may overcome the buffer end-boundary.
The patch changes btsl to btsw so that it doesn't happen.
ALSA bug#3341:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3341
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The plug plugin has a long-standing problem that it can handle only
slaves that support mmap because of format/rate/access conversions
(these corresponding plugins work only with mmap).
This patch adds the support of automatic mmap->rw conversion via
mmap_emul plugin.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The check in snd_pcm_mmap_emul_refine() is bogus and buggy.
Since the changed access type is took back at snd_pcm_mmap_emul_refine
again, it has to check the availability of mmap at each time.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Two trivial compile warning fixes:
- Add a missing return to snd_pcm_hw_clear_timer_queue()
- params->info is no long but int
The second one might have hit already on 64bit machine, but alas,
no one didn't notice it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
int64_t and long long isn't strictly identical, and thus gcc gives us
a heartful warning. Suppress the warning by a pointer cast.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When ifile option is used for the file plugin, it ignores the slave PCM
and just feeds the input data.
This patch changes the behavior a bit - it uses the slave PCM as the
timing source (just read and throw data away) so that the input data
can be read in the right sample rate.
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.
