Latest revision as of 10:46, 12 April 2013

[edit] Detailed changelog between 1.0.25 and 1.0.27 releases

[edit] Changelog between 1.0.26 and 1.0.27 releases

[edit] alsa-firmware

[edit] Core

- Release v1.0.27

- configure.in: Remove emi_26_62 reference

- Remove emi_26_62 firmwares

These are incldued in kernel-firmware for long time, and they are anyway

wrongly generated / installed (the firmware loader driver reads the

binary ihex format files *.fw)

Reported-by: Karl Grill <kgrill@chello.at>

- Add firmware for CA0132 DSP

[edit] Emagic EMI 2|6 Audio Interface Firmware

- Remove emi_26_62 firmwares

These are incldued in kernel-firmware for long time, and they are anyway

wrongly generated / installed (the firmware loader driver reads the

binary ihex format files *.fw)

Reported-by: Karl Grill <kgrill@chello.at>

[edit] Sound Blaster HDA CA0132 Firmware

- Update ca0132 firmware files

ctefx.bin:

Update the CA0132 DSP image firmware file. This version:

- Includes key-click reduction feature.

- Fixes noisy output when GraphicEQ and SpeakerEQ are both turned on.

ctspeq.bin:

Add firmware file containing coefficient preset for SpeakerEQ

DSP feature. This preset has been tuned for Chromebook Pixel hardware.

Other CA0132 systems will run without loading this binary.

- Add firmware for CA0132 DSP

[edit] Detailed changelog between 1.0.26 and 1.0.27 releases

[edit] Changelog between 1.0.26 and 1.0.27 releases

[edit] alsa-lib

[edit] Core

- Release v1.0.27

- all places: doxygen cleanups

I see no errors with these changes using doxygen 1.8.1.1 .

- Add sys/types.h to include list

This is needed by snd_pcm_format_silence* functions which

return u_int*_t. It was discovered while trying to compile ALSA

programs with eglibc 2.17.

Credits to Richard Shaw, Gary Buhrmaster, Matthieu Baerts and

Adam Conrad for this fix.

BugLink: https://bugs.launchpad.net/bugs/1109298

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=885306

- Add snd_lib_error_set_local() to install a thread-local error handler.

This is required so we can make other functions reentrant (such as

snd_device_name_hint()).

The default error handling function snd_lib_error_default() now checks

if a local handler exists, and if so, calls it. Otherwise, the previous

behavior is unchanged.

- configure: do not detect incorrect cross-compiler

On Ubuntu 11.04, configuring with --build=x86_64-unknown-linux-gnu

--host=x86_64-linux-gnu finds a wrong cross-compiler:

checking for cross-compiler... x86_64-x86_64-pc-linux-gnu-gcc

This happens because of a dash vs underscore inconsistency in configure.in:

host=x86_64-pc-linux-gnu

host_cpu=x86_64

host_os=linux-gnu

which ${host_cpu}-${host_os}-gcc >/dev/null 2>&1 && echo ${host_cpu}-${host-os}-gcc

This bug has been introduced in the initial --with-host support from

2002, commit eb267ade29c9a49c07b1c33dc9bf7a6790217400

This configure command is about "cross-compiling for i586", where the

system compiler is used, which just -m32 additional options.

The --build value comes from config.guess.

- Fix endian check in local.h

SNDRV_LITTLE_ENDIAN and SNDRV_BIG_ENDIAN checks have been removed from

sound/asound.h during UAPI header move, and this resulted in a wrong

detected endian.

Move together with the similar check for SND_*_ENDIAN at the earlier

place in local.h.

- configure: Quite AM_CONDITIONAL() arguments

Otherwise it won't be processed properly with the recent automake.

- Add workaround for conflicting snd_seq_event_t definitions

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

[edit] Control API

- control: enhance doc for snd_ctl_ascii_value_parse() function

- control, pcm: implement snd_ctl_abort() and snd_pcm_abort() functions

Upon an interrupt, it is necessary to abort the wait loops with the EINTR

error code. Introduce snd_*_abort() functions to handle this case.

- Add workaround for conflicting IEC958 controls for HD-audio

When both an SPDIF and an HDMI output are present on HD-audio, both

try to access IEC958 controls with index=0 although one of them must

be wrong. For avoiding this conflict, the recent kernel code (3.9 and

3.8 stable) moves the IEC958 controls of an SPDIF with index=16 once

when the conflict happens.

In this patch, the corresponding support is added in alsa-lib side.

The new "skip_rest" boolean flag is added to the hooked element

definition which indicates that the rest of element array will be

ignored once when this element is present and evaluated. With this

new flag, the HD-audio config takes index=16 primarily, then take

index=0 as fallback.

- control: Simplify using snd_config_get_bool()

snd_config_get_bool() was improved to parse also ASCII strings now,

so we don't have to open-code the boolean parser in

src/control/setup.c any longer.

- snd_device_name_hint(): do not use global snd_config.

This commit and its parent make the function reentrant.

- snd_device_name_hint(): do not change the global error handler.

This is the first step towards making this function reentrant.

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

- Implement the channel mapping API

Added new channel-mapping API functions.

Not all plugins are covered, especially the route, multi and external

plugins don't work yet.

[edit] Mixer API

- all places: doxygen cleanups

I see no errors with these changes using doxygen 1.8.1.1 .

- snd_mixer_poll_descriptors_revents should loop over pollfd

- mixer: Don't build simple_abst when no libdl is available

Check BUILD_MODULES conditional not to compile simple_abst.c.

Also return -ENXIO to caller statically in that case.

- Reduce compilation warnings

[edit] PCM API

- pcm: direct plugins: do more safe IPC semaphore handling

As reported dead-lock, do local lock counting and invoke abort() when

the lock counts do not match at close() time.

Reported-by: <mateen abdulmateen.shaikh@gmail.com>

- all places: doxygen cleanups

I see no errors with these changes using doxygen 1.8.1.1 .

- control, pcm: implement snd_ctl_abort() and snd_pcm_abort() functions

Upon an interrupt, it is necessary to abort the wait loops with the EINTR

error code. Introduce snd_*_abort() functions to handle this case.

- pcm: fix typo, should be SND_PCM_STATE_PREPARED.

- pcm: fix and optimize snd_pcm_areas_copy function

The memcpy() function in snd_pcm_area_copy() should not be called

with the overlapped areas. Alex discovered - using own LD_PRELOAD checked

for memcpy() input - that the memcpy() is called with src == dst.

For some special plugin combos (rate+softvol+hw for example), the same

areas with same offsets can be asked to be copied (softvol). The collapse

check uses own areas created on heap, causing dst_area == src_area &&

dst_offset == src_offset check bypassed.

Two fixes are in this patch:

- use assert to check the memcpy() input for future triggers

- bypass the snd_pcm_area_copy() call for collapsed identical areas

Reported-by: Alexander Kruppa <akruppa@gmail.com>

- snd_pcm_direct_parse_open_conf(): use thread-safe getgrnam_r()

Fixes a thread safety issue with snd_pcm_open().

- PCM: Fix conflict of _snd_pcm_hw_params definitions

Fix the call of _snd_pcm_hw_params() to _snd_pcm_hw_params_internal().

The build passed wrongly because of _snd_pcm_hw_params define.

Having the same function name as the struct name is is simply

confusing...

Also, to be sure, _snd_pcm_hw_params is undef'ed in pcm_local.h, too.

- PCM: shut up a compile "unused parameter" compile warning in pcm_multi.c

- PCM: Add more chmap definitions for UAC2

The new PCM chmap positions have been added in (to be) 3.8-rc1 kernel,

and now updated alsa-lib, too.

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

- PCM: Avoid busy loop in snd_pcm_write_areas() with rate plugin

snd_pcm_write_areas() tries to wait until avail >= avail_min condition

is satisfied. This doesn't work always well when a rate plugin is in

the play.

When a partial data with a smaller size than a period is written, the

rate plugin doesn't transfer the data immediately to the slave PCM,

but kept in an internal buffer and it changes only the hwptr of the

plugin. Thus, the condition "avail < avail_min" is triggered for a

wait check although the underlying slave PCM has enough room. This

results in a call of snd_pcm_wait() which returns immediately after

poll() call, and the snd_pcm_write_areas() loop continues. As a

consequence, it falls into a CPU hog.

This patch fixes that busy loop by introducing a new fast_ops to check

the availability for wait of avail_min. Then a plugin can ask the

slave PCM whether the wait is required (or possible).

A few plugins like multi plugin need a special handling. Otherwise a

generic plugin function can be used.

Reported-by: Trent Piepho <tpiepho@gmail.com>

- Reduce compilation warnings

- PCM: Fix memory leak for pcm empty and asym plugins

The init-only plugins do not have own pcm handle, so free the references

to open function immediately after open.

- pcm: support for audio timestamps

add new snd_pcm_status_get_audio_htstamp() routine to

query the audio timestamps provided by the kernel.

This change provides applications with better ways

to track elapsed time. Before this patch, applications

would subtract queued samples (delay) from written samples,

resulting in a 1-2 sample error.

Also add snd_pcm_hw_params_supports_audio_wallclock_ts()

to query what the hardware supports.

TODO: check protocol compatibility?

- PCM: Fix the invalid snd_pcm_close() calls in rate plugin

It happens in the error path, should call snd_pcm_free() instead.

- PCM: Fix infinite loop in htimestamp of dmix, dsnoop and dshare plugins

- PCM: Fill SND_CHMAP_NA to silent channels in route plugin

Instead of SND_CHMAP_UNKNOWN, fill SND_CHMAP_NA to the silent channels.

- PCM: A few doxygen fixes for chmap stuff

- PCM: Fix the conversion from string to chmap position

Use strncasecmp() to allow lower cases, and also evaluate the inverted

phase suffix, too.

- PCM: Define MONO and other channel map positions

Follow the new definitions in the kernel side. MONO and others have

been added, and the order of position table was changed again.

- PCM: Use compounds for overriding / enhancing chmaps

Instead of a single channel map, multiple channel maps can be provided

in a form of compound (array) to hw and null plugins. In null

get_chmap, the channel map corresponding to the current channels is

copied from the given channel maps.

- PCM: Add the missing query_chmaps for route plugin

Also fix the channel count in get_chmap for route plugin.

- PCM: Add chmap options to hw and null plugins

Add a config definition "chmap" to override (or enhance) the channel

maps. So far, only a single channel map can be provided, and the

channel count consistency isn't strictly tested at all.

- PCM: Add query_chmaps support to multi plugin

Also fix some bugs in get_chmap().

- PCM: Add snd_pcm_chmap_long_name()

Just return a more verbose name than snd_pcm_chmap_name(), but

including white spaces.

- PCM: Add SND_CHMAP_API_VERSION definition

Just to make it easier for apps to support chmap conditionally via

simple ifdefs.

- PCM: Add string conversion helper functions for chmap

Added a few helper functions between chmap and string.

snd_pcm_chmap_type_name() -- a string of the given chmap type

snd_pcm_chmap_name() -- a string of the given channel position

snd_pcm_chmap_print() -- print channel map on the given buffer

snd_pcm_chmap_from_string() -- get a channel position from string

snd_pcm_parse_string() -- parse the whole channel map from string

- PCM: Fix prefix for snd_pcm_chmap_type enum members

Add _TYPE prefix to distinguish from the channel position.

Also add SND_CHMAP_TYPE_LAST entry pointing the last one like other

enums.

- PCM: Implement snd_pcm_query_chmaps_from_hw()

This is a function similar like snd_pcm_query_chmaps() but performs

the query without a PCM handle. The card, device and substream

numbers are passed as well as stream direction.

- PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t

Instead of passing ambiguous integer array, define snd_pcm_chmap_t and

snd_pcm_chmap_query_t so that user can understand more easily which

element is for what.

- Add SND_CHMAP_NA and bit flag definitions

- Follow channel position definitions to mixer channel in mixer.h

mixer.h already contains some channel position definitions.

To be more consistent over all systems, better to follow the same

order for the new channel map, too. But since UNKNOWN channel must be

zero but the definition in mixer.h contains -1 as UNKNOWN, simply

shift the value with 1.

If the conversion is required between SND_CHMAP and SND_MIXER_SCHN,

just increment/decrement 1. Eventually I'll provide helper functions

for that...

- Define channel map position enum in pcm.h

The original definition is in sound/asound.h, but we need to export to

alsa-lib users, too.

- Cache the chmap operation errors

... not to retry the same error again.

- Implement get_chmap/set_chmap for PCM extplug/ioplug plugins

Added the new ops for both external plugins, so the protocol numbers

are incremented.

- Implement get_chmap/set_chmap for PCM plug, route and multi plugins

Still incomplete implementations. The query and set ops are missing

for route and multi plugins.

- Implement the channel mapping API

Added new channel-mapping API functions.

Not all plugins are covered, especially the route, multi and external

plugins don't work yet.

[edit] Sequencer API

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

- Reduce compilation warnings

[edit] Timer API

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

[edit] Use Case Manager API

- ucm: Set uc_mgr->ctl to NULL after closing it.

Fixes a double-free bug.

[edit] ALSA Lisp

- Reduce compilation warnings

[edit] Configuration

- USB-audio: Add "HP Digital Stereo Headset" to SPDIF blacklist

Yet another headset without digital I/O.

- Add workaround for conflicting IEC958 controls for HD-audio

When both an SPDIF and an HDMI output are present on HD-audio, both

try to access IEC958 controls with index=0 although one of them must

be wrong. For avoiding this conflict, the recent kernel code (3.9 and

3.8 stable) moves the IEC958 controls of an SPDIF with index=16 once

when the conflict happens.

In this patch, the corresponding support is added in alsa-lib side.

The new "skip_rest" boolean flag is added to the hooked element

definition which indicates that the rest of element array will be

ignored once when this element is present and evaluated. With this

new flag, the HD-audio config takes index=16 primarily, then take

index=0 as fallback.

- conf: Fix a memory access violation resulting from improper error propogation

Fixes an issue where a variable is used undeclared, which can cause seg

faults on some systems if the configuration file is not formatted

properly.

- conf: Add chmap definitions to TRIDENT and SI7018 configurations

Manually add the channel map definitions as the channel front/rear is

determined dynamically.

- PCM: Use compounds for overriding / enhancing chmaps

Instead of a single channel map, multiple channel maps can be provided

in a form of compound (array) to hw and null plugins. In null

get_chmap, the channel map corresponding to the current channels is

copied from the given channel maps.

- Add chmap override definitions for Emu10k1, Audigy and Audigy2 cards

These cards won't provide the channel maps from the driver itself

because of the dynamic routing. For simplicity, define chmaps in the

configurations, so that chmap querying of individual stereo streams

and combined multi streams works properly.

[edit] Documentation

- all places: doxygen cleanups

I see no errors with these changes using doxygen 1.8.1.1 .

[edit] Dynamic Loader helpers

- Optimize NULL check in snd_dlobj_cache_put()

- Clean up dlobj cache only when no user is present

Cleaning up the dlobj cache seems crashing some cases when the library

is used from another plugin like openal-soft. A simple workaround is

to do the cleanup only when really no user is left, i.e. after all

close calls.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=814250

[edit] Error handler

- Add snd_lib_error_set_local() to install a thread-local error handler.

This is required so we can make other functions reentrant (such as

snd_device_name_hint()).

The default error handling function snd_lib_error_default() now checks

if a local handler exists, and if so, calls it. Otherwise, the previous

behavior is unchanged.

[edit] External Control Plugin SDK

- all places: doxygen cleanups

I see no errors with these changes using doxygen 1.8.1.1 .

[edit] External PCM Filter Plugin SDK

- PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t

Instead of passing ambiguous integer array, define snd_pcm_chmap_t and

snd_pcm_chmap_query_t so that user can understand more easily which

element is for what.

- Implement get_chmap/set_chmap for PCM extplug/ioplug plugins

Added the new ops for both external plugins, so the protocol numbers

are incremented.

[edit] External PCM I/O Plugin SDK

- PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t

Instead of passing ambiguous integer array, define snd_pcm_chmap_t and

snd_pcm_chmap_query_t so that user can understand more easily which

element is for what.

- Implement get_chmap/set_chmap for PCM extplug/ioplug plugins

Added the new ops for both external plugins, so the protocol numbers

are incremented.

[edit] Kernel Headers

- PCM: Add more chmap definitions for UAC2

The new PCM chmap positions have been added in (to be) 3.8-rc1 kernel,

and now updated alsa-lib, too.

- Merge kernel uapi/sound/asound.h and asequencer.h

Instead of keeping modified asound.h and asequencer.h, copy the files

in the kernel include/uapi/sound as is, and give some renames for

avoiding conflicts with alsa-lib's definitions.

Some structs, unions and typedefs in asound.h and asequencer.h are

once renamed in local.h before inclusion, then renamed back again.

A bonus by this action is that some local codes don't have to refer to

sndrv_xxx any longer. However, some codes like src/seq/seq.c need

explicit cast because of unavoidable conflicts of struct types.

Another significant change is that now snd_pcm_sw_params.period_event

field is removed. Instead, try to access the last reserved field

internally.

- pcm: fix 64-bit SNDRV_PCM_IOCTL_STATUS ABI breakage

Commit cf40ea169aad (pcm: support for audio timestamps) added the new

audio_tstamp field to struct sndrv_pcm_status. However, struct timespec

requires 64-bit alignment, so the 64-bit compiler would insert

32 bits of padding before this field, which broke SNDRV_PCM_IOCTL_STATUS

with error messages like this:

kernel: unknown ioctl = 0x80984120

To solve this, insert the padding explicitly so that it can be taken

into account when calculating the ABI structure size.

- pcm: support for audio timestamps

add new snd_pcm_status_get_audio_htstamp() routine to

query the audio timestamps provided by the kernel.

This change provides applications with better ways

to track elapsed time. Before this patch, applications

would subtract queued samples (delay) from written samples,

resulting in a 1-2 sample error.

Also add snd_pcm_hw_params_supports_audio_wallclock_ts()

to query what the hardware supports.

TODO: check protocol compatibility?

- PCM: Define MONO and other channel map positions

Follow the new definitions in the kernel side. MONO and others have

been added, and the order of position table was changed again.

- Add SND_CHMAP_NA and bit flag definitions

- Follow channel position definitions to mixer channel in mixer.h

mixer.h already contains some channel position definitions.

To be more consistent over all systems, better to follow the same

order for the new channel map, too. But since UNKNOWN channel must be

zero but the definition in mixer.h contains -1 as UNKNOWN, simply

shift the value with 1.

If the conversion is required between SND_CHMAP and SND_MIXER_SCHN,

just increment/decrement 1. Eventually I'll provide helper functions

for that...

- Implement the channel mapping API

Added new channel-mapping API functions.

Not all plugins are covered, especially the route, multi and external

plugins don't work yet.

[edit] Test/Example code

- pcm: support for audio timestamps

add new snd_pcm_status_get_audio_htstamp() routine to

query the audio timestamps provided by the kernel.

This change provides applications with better ways

to track elapsed time. Before this patch, applications

would subtract queued samples (delay) from written samples,

resulting in a 1-2 sample error.

Also add snd_pcm_hw_params_supports_audio_wallclock_ts()

to query what the hardware supports.

TODO: check protocol compatibility?

- test: add audio_time

Simple test to create playback and capture streams, and

check elapsed time vs. sample counts reported by driver.

This should be helpful for driver developers and anyone

interested in system/audio time drift.

tested only on HDAudio

[added Makefile.am change by tiwai]

TODO:

- make period configurable

- better output messages

- support for wall clock when it's in the mainline

- test/chmap: Fix wrong malloc size

- PCM: Add string conversion helper functions for chmap

Added a few helper functions between chmap and string.

snd_pcm_chmap_type_name() -- a string of the given chmap type

snd_pcm_chmap_name() -- a string of the given channel position

snd_pcm_chmap_print() -- print channel map on the given buffer

snd_pcm_chmap_from_string() -- get a channel position from string

snd_pcm_parse_string() -- parse the whole channel map from string

- Fix duplicated channel entry in test/chmap.c

- Add SND_CHMAP_NA and bit flag definitions

- Follow channel position definitions to mixer channel in mixer.h

mixer.h already contains some channel position definitions.

To be more consistent over all systems, better to follow the same

order for the new channel map, too. But since UNKNOWN channel must be

zero but the definition in mixer.h contains -1 as UNKNOWN, simply

shift the value with 1.

If the conversion is required between SND_CHMAP and SND_MIXER_SCHN,

just increment/decrement 1. Eventually I'll provide helper functions

for that...

- Add test/chmap program

[edit] alsa-utils

[edit] Core

- Release v1.0.27

- alsactl: add --with-alsactl-daemonswitch=FILE to the global configure.in

It may be useful to have the file location configurable.

- alsactl: move systemd config to the daemon mode

- configure: Fix obsolete AM_CONFIG_HEADER macro

Automake-1.13 removed long obsolete AM_CONFIG_HEADER completely (

http://lists.gnu.org/archive/html/automake/2012-12/msg00038.html )

and errors out upon seeing it.

Attached patch replaces it with proper AC_CONFIG_HEADERS.

[edit] ALSA Control (alsactl)

- alsactl: add --with-alsactl-daemonswitch=FILE to the global configure.in

It may be useful to have the file location configurable.

- alsactl: revert back old systemd static units with the /etc/alsa/state-daemon.conf switch

- alsactl: add --nice and --sched-idle options

The state management can run at low priority, add --nice and --sched-idle

options to set the scheduler.

- alsactl: daemon mode - remove disconnected cards

- alsactl: move systemd config to the daemon mode

- alsactl: add event filter and cache for the daemon mode

- alsactl: Improved command line argument handling...

Improve command line argument handling for future extensions.

- alsactl: add the daemon mode

For the plug-and-play hardware, like USB devices, it may be helpful

to manage the sound state periodically, before the devices are removed.

This change implements new commands 'daemon' and 'rdaemon' to save

the sound state in defined intervals when the sound controls are changed.

The udev rules can notify the daemon using the 'kill' or 'nrestore'

commands to rescan available cards in the system.

- alsactl: small code reorder to avoid memory leaks

- alsactl: safe state store and memory allocation cleanups

- store new configuration to file + ".new" extension, rename later

- free the configuration tree on exit from load_state()/save_state()

- call snd_config_update_free_global() at the end of command blocks

[edit] Speaker Test

- speaker-test: change the interrupt handling logic to follow aplay/arecord

- speaker-test: try to call snd_pcm_close() when a signal is received

- speaker-test: increase the maximum supported rate to 384000

There are some devices around supporting this sample rate so let's make

speaker-test capable to deal with them.

- speaker-test: Update man page for chmap option

- speaker-test: Add support for channel mapping API

The surround channel map follows the given channel map from the

driver if available.

Also, the channels can be specified manually via -m option.

Pass the channel map like "FL,FR,FC,LFE".

[edit] alsaloop

- alsaloop: Fix missing #endif

Sorry, forgotten.

- alsaloop: Make alsaloop working without libsamplerate

When alsaloop is built with libsamplerate, it quits immediately with

No libsamplerate suppor

message. It's because the check of -A option and it's set as default

non-zero value.

[edit] alsamixer

- alsamixer: Use isatty() to check the terminal (interactive) availability

- alsamixer: fix handling of removed controls

When we get a notification that an element has been removed, we have to

recreate our internal control representation to avoid accessing freed

memory. (And the checking for SND_CTL_EVENT_MASK_REMOVE should actually

be done correctly while we're at it.)

[edit] amixer

- amixer: Use the alsa-lib functions for id print and parse and value parse

- amixer: Fix dB value outputs in amixer contents

Add missing cast to signed int for DB_MINMAX* types.

- amixer: Fix parsing container TLV entries

Fix the wrong calculation of the size of a container TLV entry, which

resulted in "TLV size error" messages.

- amixer: fix rounding of relative changes

When doing control changes by a relative amount, amixer used the wrong

rounding direction, which would make it possible to stay at the same raw

value if the step was not big enough to reach the next value.

Reported-by: Honza Javorek <jan.javorek@gmail.com>

[edit] aplay/arecord

- aplay/arecord: change the interrupt handling using snd_pcm_abort()

It is required (exclude the fatal SIGABRT) to call snd_pcm_close() and

the end of work (outside of the interrupt handler). Use new snd_pcm_abort()

function to inform alsa-lib to not ignore EINTR and move the in_aborting

variable to the global scope to be checked in the i/o loops.

- aplay/arecord: added isatty() check (interactive mode)

Turn off the interactive mode when stdin is not a tty.

- aplay: Add the support for big-endian WAV format (RIFX)

- aplay: Show usage if no parameter is passed

When aplay/arecord are called without any argument the application hangs forever.

Instead of hanging, print the usage and exit.

- aplay: fix typo & silence warning..

- aplay: More support for channel map option

Now aplay tries to follow the given channel map by rearranging the

channels even when the channel map override isn't allowed but if the

device is still capable to return a channel map.

Also update the man page appropriately.

- aplay: Add support for channel mapping

With -m option, user can specify the order of channel map.

As of this commit, it just tries to override the channel map, thus it

works only on devices that support the channel map override like HDMI.

Adjusting the channel order in aplay itself will be added later.

[edit] alsa-tools

[edit] Core

- Release v1.0.27

- ac3dec: Remove the ac3dec tool

There may be some licencing issues for the name and decoder (it is not

build in the Fedora distro anyway).

Sources will stay in repos, but almost all current players are able

to handle DD AC-3.

- Release v1.0.26.1

[edit] HDA Jack Retask

- hdajackretask: Some more UI fixes

- don't overwrite a set advanced override unless necessary

- fix "not present" never selected

- remove some trailing whitespaces

- hdajackretask: Fix "advanced override" bug

The values were not correctly retreived from the comboboxes.

- Add foreign automake option to hdajackretask/Makefile.am

- hdajackretask: Add missing header files to tar-ball distribution

[edit] ac3dec (Dolby Digital Decoder)

- ac3dec: Remove the ac3dec tool

There may be some licencing issues for the name and decoder (it is not

build in the Fedora distro anyway).

Sources will stay in repos, but almost all current players are able

to handle DD AC-3.

- ac3dec: Show usage if no parameter is passed

When ac3dec is called without any argument the application hangs forever.

Instead of hanging, print the usage and exit.

[edit] ld10k1 (EMU10K1+ DSP Code Loader)

- (q)lo10k1: updated INSTALL files

[edit] qlo10k1

- (q)lo10k1: updated INSTALL files

[edit] alsa-plugins

[edit] Core

- Release v1.0.27

[edit] A52 Output plugin

- a52: Fix build errors

I merged somehow a half-baked patch mistakenly. Fixed now.

- a52: Add the support of recent libavcodec / libavutil

The recent avcodec requires the planar support, which is essentially

non-interleaved formats. We need to limit the accepted access types

depending on it.

[edit] PulseAudio -> ALSA plugin

- pulse: pulse_pcm_poll_revents should return 0 on success

- pcm_pulse: set prebuf parameter according to software parameters

The current default value for prebuf is very high, almost the full

virtual ALSA buffer. This breaks some application especially where

low latency is involved.

This patch makes pcm_pulse implement the sw_params callback and get

the prebuf value from the ALSA software parameters. Thus the

trigger latency is much more like what an ALSA application should

expect from an ALSA PCM device.