speaker-test.c - fix sine generator on big-endian archs
speaker-test doesn't work well when you choose a little-endian format on a
big-endian processor, or the opposite. Yes, I know about plughw:, but for
debugging purposes it may not be an option. The following patch add proper
support for S32 and S16 support for but LE and BE processors:
- The "if (bits-per-sample)" construct was replaced by case (format).
- Support for S16_BE, S32_BE formats was added.
- S16_LE and S32_LE were made compatible with big-endian processors.
- NB: The pink noise generator wasn't changed (I'll do if this patch is OK).
The recent ncurses package provides ncurses*-config program to give the
proper cflags and libs. Let's use them if available.
Right now, the ncurses version (5) is hard-coded. It should be better
to be variable as well, but it'd be messy. Hope the ncurses version won't
change rapidly.
Pawel MOLL [Thu, 6 Mar 2008 16:34:21 +0000 (17:34 +0100)]
Support for playing WAV files with "extensible format" header using aplay.
WAV files with more than 2 channels or with more than 16 bits per samples
can be saved with "extensible format" chunk
(see http://msdn2.microsoft.com/en-us/library/ms713496(VS.85).aspx).
For instance, sox, when converting data to 24- or 32-bits per sample format
uses this format, and aplay was unable to play such file. Now the problem
is solved :-)
Andrew Paprocki [Wed, 6 Feb 2008 13:05:07 +0000 (14:05 +0100)]
aplay/arecord - Add support for IEEE float 32-bit WAV files
This patch modifies aplay/arecord to support playing/capturing IEEE float
32-bit WAV files. Tested on HDA hardware in both stereo and multi-channel
modes. Added the WAV file constant for Dolby AC-3 S/PDIF passthrough to
formats.h for future use when AC-3 passthrough is better supported.
Signed-off-by: Andrew Paprocki <andrew@ishiboo.com>
Takashi Iwai [Mon, 17 Dec 2007 10:49:00 +0000 (11:49 +0100)]
alsactl: skip inactive controls
When using alsactl to save or restore the card settings, it currently
skips over controls that don't have the appropriate read/write
permissions. It should also skip over inactive controls, otherwise it
will get an error when it tries to access that control, and will fail to
save the card state (or fully restore it.)
Takashi Iwai [Fri, 14 Dec 2007 14:29:51 +0000 (15:29 +0100)]
aplay - Reset non-blocking flag before snd_pcm_drain()
snd_pcm_drain() doesn't block when running with O_NONBLOCK.
Reset the non-blocking mode before calling snd_pcm_drain() properly
(and restore again for any further operations).
Takashi Iwai [Wed, 24 Oct 2007 11:53:14 +0000 (13:53 +0200)]
alsactl - restore dB level
When alsactl saved state has dB level information and an attribute
of a control element is changed after save (e.g. volume range is
changed), try to restore the values to keep the same dB level.
This change requires the new alsa-lib functions for TLV dB
conversion, so we check it in configure (until AM_PATH_ALSA(1.0.16)
works).
Takashi Iwai [Wed, 24 Oct 2007 11:08:28 +0000 (13:08 +0200)]
Make alsactl restore a bit more robust
Make "alsactl restore" a bit more robust. Now it tries to parse the
compound items in the case that the number of channels was changed.
The former mono-value is expanded to all channels.
amixer - Allow to pass enum item string for cset, too
cset accepts only integer values as indices, so far, but it's a bit
unfriendly. Now it accepts the item name as a string argument, too.
The index can be given using numbers as fallback.
The item names with channel specifier cannot be chosen correctly
via amixer sset. For example, 'Front Mic' is handled as 'Mic' since
the channel specificier 'Front' is omitted.
The idea of channel specifier is basically non-sense for enum items,
and this also makes the code very messy.
The patch fixes the behavior of enum items and gives the code clean-up
for sset command.
Takashi Iwai [Mon, 8 Jan 2007 10:46:12 +0000 (11:46 +0100)]
Fix aconnect man page
Use local definitions of .EX/.EE or .DS/.DE to avoid low-level troff
requests in the page body. There are plans to add these to groff man;
in the interim, this patch adds a compatible definition.
Clemens Ladisch [Mon, 4 Dec 2006 17:01:23 +0000 (18:01 +0100)]
aplaymidi: handle big SysEx commands
Make sure that the sequencer output buffer is big enough to handle all
events that we send, and split large SysEx commands into one-second
chunks so that the sequencer kernel code can handle them.
Initialize volumes by specifying dB values in alsaconf.
This will give more sane values if the mixer elements support dB.
If not supported, simply the old value in percent is used.
git://git.alsa-project.org / alsa-utils.git / log