When the range of a control has changed between driver versions, it is a
good idea to restore the same dB value of the control. However,
computing the dB value by interpolating betweem the min/max dB values
duplicates alsa-lib's TLV functions and does not even work for controls
with a linear dB range.
A simple conversion to dB and back can be done if we add the dB value(s)
to the saved state.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reserving new space from the stack in every loop iteration is not
necessary, so move the call to snd_ctl_elem_id_alloca outside where it
is executed only once.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
To save a call to snd_config_set_xxx, replace the calls to
snd_config_make_xxx with snd_config_imake_xxx.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Also, make the initialization & restore logic for one card similar to
multiple card initialization & restore.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Ensure that control volume values are in their allowed range; otherwise,
the displayed values could be outside the range 0..100 and mess up the
layout.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
The attempt to divide by max-min fails if a control has only one valid
value. In this case, adjust the maximum so that the computation can
succeed; the control will look like 0%.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
When an element is marked as not readble, do not try to read it and then
complain about the error, but just ignore it.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Rewrite the port listing code because it was too complex and had some
bugs when handling write-only or read-only ports.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Bring the man file up to date, documenting the signals and all the
options, including those added for audio surveilance.
Signed-off-by: John Sauter <John_Sauter@systemeyescomputerstore.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add signal SIGUSR1 to turn over the output file,
--max-file-time to cause the output file to turn over automatically,
and --use-strftime to create output files based on the current time.
Signed-off-by: John Sauter <John_Sauter@systemeyescomputerstore.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Write the process ID to a file so other programs can
signal aplay. When aplay exits, delete the file.
Signed-off-by: John Sauter <John_Sauter@systemeyescomputerstore.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
If initialization file (-i option) does not exists, the free_space()
function was called with NULL pointer.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Report available sample formats in aplay/arecord when currently selected
one doesn't work.
Signed-off-by: Arnout Engelen <alsa2@bzzt.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
To increase configuration readability, add CTL{do_search} and CTL{do_count}
actions. The old PROGRAM=="__ctl_search" notion is also allowed.
Add CTL{write} to XML documentation.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Initialize Speaker volume to 0dB as well as Headphone when Master
is present. Also initialize Headphone,1 for machines with dual
headphones.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When throttling the data rate for big SysEx messages, use the bandwidth
that devices use in practice instead of the theoretical maximum.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Fix the volume bar color selection logic so that the current attribute
is used for inactive controls.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Rename the attr variable because it contains not only the character's
attributes but also the character itself.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
When a multi-column character would straddle the left window border of
a text box, we have to take the inserted space character into account
when we compute how many characters fit into the rest of the line.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
For multichannel mixer controls, add the channel name to each screen
control.
Also make some other small changes.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Rather than having numerous preprocessor directives scattered in the code
checking __BYTE_ORDER, only check it once and define a set of macros
accordingly that can be used in the rest of the code. This makes things
simpler to read and less error-prone.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
