Takashi Iwai
30f35c1f7a
Add softvol PCM plugin
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The softvol PCM plugin is added. It applies the software volume attenuation,
which may be useful for codecs without volume controls.
Currently, the control is only mono. The attenuation is applied to all
channels equally. The control is probed and automatically created
when not exists yet.
2004-12-27 14:40:19 +00:00
Clemens Ladisch
5c9ee5ef03
fix changed error message handling
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In the last error message handling change, some error conditions
didn't get properly inverted.
2004-12-23 08:15:46 +00:00
Takashi Iwai
2b54677fdb
Change error message handling
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Change the handling of non-fatal errors. Now the non-fatal error
messages are not shown in stderr and no assert() as default. The
behavior can be changed with LIBASOUND_DEBUG environment variable.
2004-12-21 14:11:00 +00:00
Kirill Smelkov
0256e1e8c9
Fixed few typos in documentation.
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Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
2004-12-08 19:22:42 +00:00
Jaroslav Kysela
2d7ca56e2a
Return correct error in snd_pcm_wait() after snd_pcm_poll_descriptors() call
2004-11-12 20:27:31 +00:00
Jaroslav Kysela
b7e8f57314
Try to fix period_time/period_size problems for direct plugin slaves
2004-10-29 10:56:13 +00:00
Takashi Iwai
83a533d1a7
[alsa-lib] Avoid zero division
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Check the invalid parameters in snd_pcm_sw_params() beforehand to avoid
zero division.
2004-09-17 17:36:18 +00:00
Takashi Iwai
5586e5cbb1
added a new plugin "iec958" to convert IEC958 subframes.
2004-05-04 15:13:23 +00:00
Jaroslav Kysela
2cb16f857d
Prefer SND_ macros over SNDRV_ ones
2004-04-20 13:52:32 +00:00
Jaroslav Kysela
2bad31bbf4
Fixed bugs detected by Intel compiler
2004-04-20 13:42:48 +00:00
Takashi Iwai
965222c3d9
fixed compile warnings.
2004-04-15 12:52:49 +00:00
Takashi Iwai
494f3e66e4
fixed the handling of EINTR in read/write.
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EINTR can be returned during ACPI suspend/resume.
2004-04-15 12:22:26 +00:00
Jaroslav Kysela
b0ad5bf718
Next documentation update for file descriptor routines
2004-04-05 17:59:34 +00:00
Jaroslav Kysela
72e2f8046e
Added 24-bit copy
2004-03-31 14:16:31 +00:00
Jaroslav Kysela
f5a5284c6d
A next try to fix the snd_pcm_wait() behaviour with direct plugins
2004-03-24 08:50:01 +00:00
Jaroslav Kysela
f70e0fd468
Added mmap_avail() check to snd_pcm_wait() function
2004-03-23 13:29:52 +00:00
Jaroslav Kysela
7c201b510a
- added poll_ask callback to mangle avail_min (rate_plugin as example)
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- added mangling of avail_min to rate_plugin
- added poll_fd_count variable
- FIXME: move poll_revents callback to fast_ops
2004-03-17 11:48:14 +00:00
Jaroslav Kysela
14b37bcd85
Fixed comments for snd_pcm_avail_update/snd_pcm_delay/snd_pcm_hwsync
2004-03-12 19:07:20 +00:00
Jaroslav Kysela
1c9c7754eb
Changed specification for silence_size
2004-03-05 08:14:05 +00:00
Jaroslav Kysela
0ecc03111d
Improved comments for poll_descriptors
2004-03-03 12:54:01 +00:00
Clemens Ladisch
16a15f56c4
fix doxygen errors (syntax errors and wrong references)
2004-03-02 17:13:49 +00:00
Jaroslav Kysela
59b6cbec84
Correction for explanation of near functions
2004-03-02 07:51:50 +00:00
Jaroslav Kysela
9747c69809
Fixed return comment for *near() functions
2004-03-01 08:53:50 +00:00
Jaroslav Kysela
10942aee61
Reverted deprecated functions and added linker warning to them
2004-02-23 10:34:17 +00:00
Jaroslav Kysela
a0bdb34f0d
Remove these functions (alsa-oss package no longer use them):
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snd_pcm_uframes_t _snd_pcm_mmap_hw_ptr(snd_pcm_t *pcm)
snd_pcm_uframes_t _snd_pcm_boundary(snd_pcm_t *pcm)
2004-02-21 20:38:07 +00:00
Jaroslav Kysela
131d6610fc
Fixed file plugin - mmap access was broken and revents were not handled correctly
2004-02-08 10:19:52 +00:00
Jaroslav Kysela
9505cbe5d8
Added start_threshold sanity checks
2004-02-06 09:38:49 +00:00
Jaroslav Kysela
bf978c3ff2
Fixed non-versions build
2004-01-21 09:30:59 +00:00
Jaroslav Kysela
9105bb7fcd
Added SNDRV_PCM_STATE_DISCONNECTED state.
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Changed direct plugins to handle DISCONNECT/SUSPEND states from slave.
2004-01-19 19:48:27 +00:00
Takashi Iwai
b833982c70
- added asym plugin.
2004-01-08 14:05:55 +00:00
Jaroslav Kysela
56c0ba4371
Added more stop threshold comments
2003-12-29 09:10:48 +00:00
Jaroslav Kysela
d4af763f8a
Switch from old to new PCM API retaining binary compatibility
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Changed version to 1.0.0pre1
2003-11-05 10:38:37 +00:00
Takashi Iwai
87425aed82
added more descriptions.
2003-10-31 18:52:55 +00:00
Takashi Iwai
e489376d5d
use only #xxx to link (for the recent doxygen).
2003-10-20 14:04:21 +00:00
Jaroslav Kysela
cb1f308ab5
NULL check in mmap_begin()
2003-07-23 06:57:53 +00:00
Jaroslav Kysela
0d1fc81692
Fixed typo
2003-07-16 19:31:42 +00:00
Jaroslav Kysela
ed9961c9a2
Fixed snd_pcm_wait() function
2003-07-16 19:31:15 +00:00
Takashi Iwai
f073afbdfa
- snd_pcm_wait() returns more understandable error code when an error
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happens during poll().
- clean up the code along with the change above.
2003-07-16 11:37:25 +00:00
Jaroslav Kysela
b004a9d791
Added snd_pcm_munmap() call to snd_pcm_close() - free all resources
2003-06-22 09:59:03 +00:00
Jaroslav Kysela
a24442958b
Use snd_pcm_hwsync() rather than snd_pcm_delay() in write_areas()
2003-05-04 20:06:30 +00:00
Jaroslav Kysela
573f85dc1d
- added shm area manager code
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- fixed parsing of period_size/buffer_size options for dmix, dsnoop and
dshare plugins
2003-04-23 12:41:55 +00:00
Takashi Iwai
2978d18323
check the current pcm status in snd_pcm_read/write_areas() if
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snd_pcm_wait() returns an error. this will fix the bogus
return code of snd_pcm_readi/writei().
2003-03-27 09:10:22 +00:00
Jaroslav Kysela
bc28eccdcd
Extracted common code from dmix plugin.
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Initial framework for dsnoop and dshare plugins.
2003-03-18 20:37:42 +00:00
Jaroslav Kysela
fea03e9eba
Fixed compilation --with-versioned=no
2003-03-11 18:51:32 +00:00
Jaroslav Kysela
157107491c
Added snd_pcm_type_name()
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Fixed rate conversion plugin (SIGSEGV) - rounding problem
2003-03-08 16:35:18 +00:00
Jaroslav Kysela
3cc4c86fb2
Moved pcm_jack plugin to src/pcm/ext directory (must be build manually).
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The pcm open functions looks to /usr/lib/alsa-lib directory for plugins
like jack.
2003-03-05 19:56:55 +00:00
Jaroslav Kysela
1ac62945f8
Added htstamp functions
2003-02-28 20:29:23 +00:00
Jaroslav Kysela
cf9e518d51
Timestamp update (struct timeval -> struct timespec).
2003-02-28 17:23:28 +00:00
Jaroslav Kysela
7b09000813
Removed snd_pcm_hwdiff() function
2003-02-22 17:53:01 +00:00
Jaroslav Kysela
2dab1dfbc3
Removed snd_pcm_hwptr().
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Added snd_pcm_hwdiff() and snd_pcm_forward().
Returned the behaviour for snd_pcm_mmap_begin().
2003-02-22 17:19:02 +00:00
