Commit graph

1427 commits

Author SHA1 Message Date
Takashi Sakamoto
fce16d9279 axfer: add an implementation of waiter for select(2)
This commit adds support of waiter for select(2) system call.

Below lines are examples to use this option:
$ axfer transfer --waiter-type=select -M -P -d 2 -D hw:0,3 /dev/urandom -f dat -vvv
$ axfer transfer --waiter-type=select -M -C -d 2 -D hw:1,0 /dev/null -r 48000 -vvv

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:50 +01:00
Takashi Sakamoto
1521e01550 axfer: add an implementation of waiter for poll(2)
This commit adds support of waiter for poll(2) system call.

Below lines are examples to use this option:
$ axfer transfer --waiter-type=poll -M -P -d 2 -D hw:0,3 /dev/urandom -f dat -vvv
$ axfer transfer --waiter-type=poll -M -C -d 2 -D hw:1,0 /dev/null -r 48000 -vvv

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:50 +01:00
Takashi Sakamoto
0e1b59cb4f axfer: add an option for waiter type
This commit is an integration to add an option for users to choose waiter
type. Users give the type to value to '--waiter-type' ('-w') option to
choose it. Currently, 'snd_pcm_wait()' is just supported as a default.
This alsa-lib API is implemented with a call of poll(2).

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:49 +01:00
Takashi Sakamoto
cd211d8c22 axfer: add a common interface of waiter for I/O event notification
There're several types of system calls for multiplexed I/O. They're used to
receive notifications of I/O events. Typically, userspace applications call
them against file descriptor to yield CPU. When I/O is enabled on any of
the descriptors, a task of the application is rescheduled, then the
application execute I/O calls.

This commit adds a common interface for this type of system calls, named as
'waiter'. This is expected to be used with non-blocking file operation and
operations on mapped page frame.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:48 +01:00
Takashi Sakamoto
5eea6d346f axfer: add options for plugins in alsa-lib
As of 2017, two userspace library implementations are known; alsa-lib and
tinyalsa. The latter is simple I/O library to use ALSA PCM interface. On
the other hand, alsa-lib is more complicated than it. This is because it's
designed to add features to transmission of data frames; e.g. sample
resampling. To achieve this, alsa-lib has its configuration space and
plugin system.

In aplay, some options are implemented as a flag for the plugins in
alsa-lib. The flag is given to snd_pcm_open(). This commit adds support
for the flags.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:48 +01:00
Takashi Sakamoto
d010fe8bcf axfer: add options for software parameters of PCM substream
In ALSA PCM interface, some parameters are used to configure runtime of
PCM substream independently of actual hardware. These parameters are
mainly used to decide the detailed timing to start/stop PCM substream and
release I/O blocking state of application. These parameters are
represented and delivered by a structure.

In alsa-lib PCM API, the structure is hidden from userspace applications.
The applications can set/get actual parameters by helper functions.

In aplay, three of the parameters are configurable. This commit adds
support for them. When no options are given, default values are used.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:47 +01:00
Takashi Sakamoto
d28f9def97 axfer: add options for buffer arrangement
In ALSA PCM interface, two parameters are used for size of intermediate
buffer for data frames; period size and buffer size. Actual effects of
these sizes differs depending on hardware, but basically the size of
period is used for intervals of hardware interrupts and the size of buffer
is used to maintain the intermediate buffer as ring buffer. These
parameters can be configured as a part of hardware parameters by
data frame unit or micro second. PCM API in alsa-lib also includes
helper functions to configure them by the two units.

This commit adds support for options to the parameters by both units. When
no options are given, default values are applied according to current
aplay; available maximum size of buffer up to 500msec, a quarter of the
size of buffer for period size. However, these calculation should be
reconsidered somehow.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:47 +01:00
Takashi Sakamoto
0e3a1d9e0b axfer: add an option to suppress event waiting
In aplay, '--test-nowait' is used to suppress calls of snd_pcm_wait()
when I/O operations return -EAGAIN or process truncated number of data
frames. This seems to be for debugging purpose. In this program, this
option is equivalent to suppress event waiting.

This commit adds support for this option.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:37 +01:00
Takashi Sakamoto
b5d2fadfb1 axfer: add support for MMAP PCM operation
In alsa-lib PCM API, data frames can be handled in mapped page frame,
instead of calling any system calls.

This commit support for this type of operation. To reduce CPU usage,
this commit uses 'snd_pcm_wait()' to wait for event notification.

Below lines are examples to execute:
$ axfer transfer -M -P -d 2 -D hw:0,3 /dev/urandom -f dat -vvv
$ axfer transfer -M -C -d 2 -D hw:1,0 /dev/null -r 48000 -vvv

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:37 +01:00
Takashi Sakamoto
c46d46a436 axfer: add support for non-blocking operation
In alsa-lib PCM API, snd_pcm_read[i|n]() and snd_pcm_write[i|n] can be
used with non-blocking mode. This is available when SND_PCM_NONBLOCK is
used as 'mode' argument for a call of snd_pcm_open().

This commit adds support this type of operation. To reduce CPU usage, this
commit uses 'snd_pcm_wait()' to wait for event notification.

Below lines are examples to execute:
$ axfer transfer -N -P -d 2 -D hw:0,3 /dev/urandom -f dat -vvv
$ axfer transfer -N -C -d 2 -D hw:1,0 /dev/null -r 48000 -vvv

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:36 +01:00
Takashi Sakamoto
29c6076029 axfer: add an option to finish transmission at XRUN
In aplay, '--fatal-errors' option has an effect to give up recovery of PCM
substream from XRUN state. This commit adds support for this option.

In original implementation, this option brings program abort. This seems
to generate core dump of process VMA. However, typically, XRUN comes from
timing mismatch between hardware and application, therefore core dump has
less helpful. This commit finishes this program in usual way with this
option at XRUN.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:36 +01:00
Takashi Sakamoto
f5776e232c axfer: add options related to duration and obsolete '--max-file-size' option
In aplay, some options are available to stop data transmission by frame
unit. This commit adds support for the options below:
 * --duration (-d)
  * For duration seconds. The number of data frames transferred in this
  * runtime is calculated by this value and sampling rate.
 * --samples (-s)
  * For the number of data frames to handle in this runtime.

An original aplay has a similar option; '--max-file-time'. This option
is used for capture data transmission to switch file to write data frame
up to maximum number of frames which container format supports, instead
of terminating. However, this may brings complicated file handling to
this program. To reduce maintaining cost, this option is obsoleted.
Additionally, a handler for SIGUSR1 Unix signal has similar feature to
switch the file. For the same reason, the handler is also obsoleted.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:35 +01:00
Takashi Sakamoto
ae378611b7 axfer: add an option to dump available hardware parameters
In ALSA PCM interface, before configuring hardware actually, applications
can request available set of hardware parameters for runtime of PCM
substream. The set of parameters are represented and delivered by a
structure.

In alsa-lib PCM API, the above design is abstracted by a series of
snd_pcm_hw_params_xxx() functions. An actual layout of the structure is
hidden from applications by an opaque pointer.

In aplay, '--dump-hw-params' option is for this purpose. With this option,
the command output available set of the hardware parameters.

This commit adds support for the option. Unlike aplay, this commit takes
this program to finish after dumping the parameters for simplicity of
usage.

I note that all of combinations in the set are not necessarily available
when the PCM substream includes dependencies of parameters described by
constraints and rules.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:35 +01:00
Takashi Sakamoto
2b4d826893 axfer: add informative output and an option to suppress it
In current aplay, some informative output is available as a default. This
can be suppressed by a quiet option. This commit adds support for it.

An original aplay implementation has no effect of this option in a case
to handle multiple files. However, in a point of usability, this commit
support this case.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:34 +01:00
Takashi Sakamoto
3266d71c0d axfer: add a sub-command to transfer data frames
In current aplay, default action is to transfer data frames from/to
devices. This commit adds support for this functionality.

Event loop is included in an added file. In the loop, the number of
handled data frames is manipulated by an appropriate way. As a result, users
can stop data transmission frames by frame.

Unlike aplay, when catching SIGSTP, this application performs to suspend
PCM substream. When catching SIGCONT, it performs to resume the PCM
substream. The aim of this design is to avoid XRUN state of the PCM
substream. If users/developers need to any XRUN-recovery test, it's
better to work for the other ways.

Below lines are examples to execute:
$ axfer transfer -P -D hw:0,3 /dev/urandom -f dat -vvv
$ axfer transfer -C -D hw:1,0 /dev/null -r 48000 -vvv

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:33 +01:00
Takashi Sakamoto
c2f79d9fdf axfer: add support for blocking data transmission operation of alsa-lib PCM API
In alsa-lib PCM API, snd_pcm_read[i|n]() and snd_pcm_write[i|n]() are used
to transfer data frames from/to hardware. When a handler is not opened with
specific flags, these functions perform blocking operation; i.e. the
function call doesn't return till all of request number of data frames are
actually handled, or call is interrupted by Unix signals, or PCM substeam
corrupts due to hardware reasons.

This commit adds support for this type of data transmission. For cases that
requested data frames are not processed by container interface, this commit
adds internal cache mechanism to handle rest of data frames in next timing.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:32 +01:00
Takashi Sakamoto
ae7346d110 axfer: add support to transfer data frames by alsa-lib PCM APIs
This commit adds support fo alsa-lib PCM API as a backend of 'xfer'
module. In a set of alsa-lib PCM API, there're two ways to handle data
frames; by calling ioctl(2) with some specific commands with buffer in
user space, or copying data frames on mapped page frames. To support
both ways, this commit adds an operation structure as abstraction.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:31 +01:00
Takashi Sakamoto
b83a8cd3be axfer: add a parser for command-line options
In aplay, many command-line options are supported. Some of them have
dependency or conflicts. Furthemore, some of them are just for
runtime configuration of alsa-lib(libasound), and some options can
be used by several xfer backends commonly; e.g. options for file name,
sample format and sampling rate.

This commit adds a parser for the common options below.
 * --help (-h)
  * Just output 'help' string (not written yet).
 * --verbose (-v)
  * For verbose output, including information about xfer, mapper and
    container.
 * --format (-f): string. format literals or one of ['cd'|'cdr'|'dat']
  * For sample format supported by ALSA PCM interface. Special format
    can be used. For playback, this is auto-detected according to actual
    file format.
 * --channels (-c)
  * For the number of samples included in one data frame. For playback,
    this is auto-detected according to actual file format, except for
    'raw' format. This option can conflict to above format option.
 * --rate (-r)
  * For the number of data frames transferred in one second. For playback,
    this is auto-detected according to actual file format, except for
    'raw' format. This option can conflict to format option above.
 * --file-type (-f): string. one of ['wav'|'au'|'voc'|'raw']
  * For format of files of given paths. For playback, this is optional
    because the format is auto-detected. For capture, this is optional too
    because the format is decided according to suffix of given path.
    Anyway, this option is used for cases to fail to detect or decide.
 * --separate-channels (-I)
  * When using several files as source or destination for transmission
    of data frame, this option can be used with several file paths.

When '--separate-channels' option is used, users can give several file
paths to source/destination of data transmission, else they can give single
file path for the purpose. When multiple files are handled by this option,
for playback, data frames in first channel is used to construct buffer for
data transmission with multi channel. For capture, data frames in each
channel of buffer are written to each of given path. Furthermore, when a
single path is given for capture, file paths are auto-generated according
to available number of channels. For example, 'name.wav' is given for
2 channels capture, 'name-0.wav' and 'name-1.wav' are generated. In a
case of no suffix, 'name-0' and 'name-1' are generated.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:30 +01:00
Takashi Sakamoto
4ab0c46165 axfer: add a common interface to transfer data frames
ALSA has PCM interface to transfer data frames. In userspace, there're
some implementation to utilize this interface to produce application
programming interface; alsa-lib (libasound) and tinyalsa. However, it's
possible to use the interface with raw I/O operations.

This commit adds an common interface to transfer data frames for this
program, named as 'xfer'. This internal interface is designed for users
to select several backend for data transmission. This includes some
functions expected to be called by main program just for data
transmission. In an aspect to maintain PCM substream, suspend feature is
required to handle a pair of SIGTSTP/SIGCONT UNIX signals.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:29 +01:00
Takashi Sakamoto
39d1ab8a0c axfer: add a unit test for mapper interface
In former commits, mapper module gets supports of muxer/demuxer for
single/multiple targets for playback source or capture destination. This
commit adds a unit test for them. This includes positive test cases only.
The test cases actually generate I/O to file systems for many test cases.
It takes a bit long time to finish.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:28 +01:00
Takashi Sakamoto
25c8e3bebb axfer: add support for a mapper for multiple target
This commit adds support of mapper for 'multiple' target. This handles
several files via 'container' functions, and constructs data frame buffer
for playback, or splits data frames from data frame buffer for capture.
When playback source files includes data frames with several channels, the
first channel is used to construct buffer. For capture direction, each of
channel of data frame is stored in one file, thus the file includes one
channel of data frame. When handling non-interleaved buffer, a caller
should use an array of buffer for each of channels with non-interleaved
data frames.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:28 +01:00
Takashi Sakamoto
a5f21d610d axfer: add support for a mapper for single target
In usual use case of aplay, single file is used to playback or capture data
frames.

This commit adds support of single type mapper for this use case. All of
supported file format can include data frame with interleaved alignment,
thus this mapper have a functionality to convert from several types of
data frame alignment to interleaved alignment or vise versa. When
handling non-interleaved buffer, a caller should use an array of buffer
for each of channels with non-interleaved data frames.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:27 +01:00
Takashi Sakamoto
58c83ae239 axfer: add a common interface to align data frames on different layout
In current aplay, several files can be handled as source of data frames for
playback, or destination of captured data frames by an option
'--separate-channels' (-I).

On the other hand, in ALSA PCM kernel/user interface, several types of
buffer are used to communicate between application/hardware;
 - mapped page frame for data frames with interleaved alignment
 - mapped page frame for data frames with non-interleaved alignment
 - buffer in user space for data frames with interleaved alignment
 - a list of buffer in user space for data frames with non-interleaved
   alignment

This commit adds a common interface, named as 'mapper' to convert frame
alignment between these two sides. This interface includes two types;
'muxer' and 'demuxer'. The 'muxer' is for playback direction, to
construct playback buffer with PCM frames from several files. The 'demuxer'
is for capture direction, to split PCM frames from capture buffer to
each of file. Unlike multimedia containers such as MPEG 2/4 Systems,
the 'muxer' and 'demuxer' are for playback/capture buffer, not for file
contents.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:26 +01:00
Takashi Sakamoto
b878df1ff0 axfer: add unit test for container interface
In former commits, container module gets supports of parser/builder for
several types of file format. This commit adds a unit test for them.
This includes positive test cases only. The test cases actually generate
I/O to file systems for many test cases. It takes a long time to finish.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:25 +01:00
Takashi Sakamoto
96110793b3 axfer: add support for a container of raw data
This commit adds support for raw data without any headers/chunks/blocks.
A parser of container cannot recognize format of sample without
supplemental information.

Additionally, it includes no magic bytes. A parser of container should
process first several bytes as a part of PCM frames, instead of magic
bytes.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:25 +01:00
Takashi Sakamoto
4ab7510f3a axfer: add support for a container of Creative Tech. voice format
This commit adds support for data of Creative Tech. voice format. In this
data format, values in each of field are represented in little-endian byte
order and available formats of data sample are restricted in little-endian
byte order.

In version 1.10 of this format, sampling rate is represented with
reciprocal number of the rate, thus we cannot calculate original sampling
rate precisely just from its header. For example at 44.1kHz, file header
includes 233 (=256-1,000,000/44,100), but we cannot recover the value just
from the code (43478.2...). For my convenience, this commit adds a
pre-computed table and lookup major rates from the table.

Additionally, this format can includes several blocks with different
sample format. When handling this type of file, we need to start/stop
substream for each of the block, while this brings complicated code.
This type of format is enough ancient and presently quite minor. This
commit takes a compromise and handles a first sample block only.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:23 +01:00
Takashi Sakamoto
3121a6aefb axfer: add support for a container of Sparc AU format
This commit adds support for data of Sparc AU format. In this data format,
values in each of field are encoded in big-endian byte order and available
formats of data sample are restricted in big-endian byte order.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:23 +01:00
Takashi Sakamoto
6667fe3a76 axfer: add support for a container of Microsoft/IBM RIFF/Wave format
This commit adds support for data of Microsoft/IBM RIFF/Wave format. In
this data format, values in each of field are encoded in both bit/little
byte order but inner a file the same order is used. Magic bytes in the
beginning of data indicated which byte order is used for the file.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:22 +01:00
Takashi Sakamoto
f330d920bf axfer: add a common interface to handle a file with audio-specific data format
Current aplay supports several types of data format for file; Microsoft/IBM
RIFF/Wave (.wav), Sparc AU (.au) and Creative Tech. voice (.voc). These
formats were designed to handle audio-related data with interleaved frame
alignment.

This commit adds a common interface to handle the file format, named as
'container' module. This includes several functions to build/parse
the format data from any file descriptors. Furthermore, this includes
several helper functions for implementations of each builder/parser.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:21 +01:00
Takashi Sakamoto
e88216ba64 axfer: add a sub-command to print list of PCMs/devices
Original aplay implementation has a feature to output two types of list;
devices and PCMs. The list of devices is a result to query sound card and
pcm component structured maintained in kernel land. The list of PCMs is a
result to parse runtime configuration files in alsa-lib. Entries in the
former list is corresponding to ALSA PCM character device
('/dev/snd/pcm%uC%uD[p|c]'), while entries in the latter list includes
some 'virtual' instances in application runtime.

This commit adds an implementation for the above functionality. This is
executed by taking 'list' sub-command. A 'device' option has the same
effect as '--list-devices' and '-L' of aplay. A 'pcm' option has the same
effect as '--list-pcms' and '-l' of aplay. In both cases, an additional
option is required for stream direction. Below is examples of new command
system for this sub-command.

$ axfer list device -C (= arecord --list-devices)
$ axfer list pcm -P    (= aplay -l)

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:20 +01:00
Takashi Sakamoto
a452b98235 axfer: add an entry point for this command
This commit adds a new command, 'axfer' ('ALSA transfer'), to transfer data
frames described in asound.h. This command is intended to replace current
aplay. The most of features and command line parameters come from aplay as
much as possible, while it has more better feature and code to maintain.

This commit adds an entry point for this command. Current option system of
aplay is still available, while this command has a sub-command system like
commands in iproute2.

Currently, two sub-commands are supported; 'list' and 'transfer'. The
'list' sub-command has the same effect as '-l' and '-L' options of aplay.
The 'transfer' sub-command has the same effect as the main feature of
aplay. For the sub-command system, an option for stream direction is
required; '-P' for playback and '-C' for capture. If you create symbolic
links to this binary for aplay/arecord, please execute:
$ ln -s axfer aplay
$ ln -s axfer arecord

Actual code for each sub-command will be implemented in later commits.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-13 12:04:19 +01:00
Takashi Sakamoto
6c81444a52 aplay: improve available conditions for '--samples' and '--duration' options
Either '--samples' ('-s') and '--duration' ('-d') option is available
exclusively, according to its semantics and actual implementation.

This commit improves description of manual at this point.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Reviewed-by: Daniel Baluta daniel.baluta@nxp.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-08 16:03:32 +01:00
Takashi Sakamoto
8b0cdffe09 aplay: add a paragraph for '--samples' ('-s') option to aplay manual
A '--samples' ('-s') option was added so that record/playback process is
terminated after handling the same number of PCM frames as a value of the
option. However this option is not described in aplay manual.

This commit adds a paragraph for the option.

Fixes: 3d44e2bc15 ('aplay: Add samples argument for playing/recording a given number of samples')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Reviewed-by: Daniel Baluta daniel.baluta@nxp.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-08 16:03:25 +01:00
Takashi Sakamoto
f79082df38 aplay: delete paragraph for obsoleted '--sleep-min' ('-s') option from aplay manual
A '--sleep-min' option was already obsoleted for aplay. On the other hand,
a paragraph for the option was left as is.

This commit deletes the paragraph.

Fixes: 4cb74aed89 ('Remove sleep_min from aplay')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Reviewed-by: Daniel Baluta daniel.baluta@nxp.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-08 16:03:01 +01:00
Thomas Petazzoni
2dec9bca1e topology/topology.c: drop unneeded <dlfcn.h> include
This include is not used/needed and prevents building on systems that
don't provide <dlfcn.h>.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-02 15:04:34 +01:00
Jaroslav Kysela
55d683d307 initial version of .travis.yml
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-24 22:30:59 +02:00
Jaroslav Kysela
06378ccf09 fix gettextize
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-24 20:46:25 +02:00
Jaroslav Kysela
61244a4494 rename and update README.md
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-24 17:41:16 +02:00
Jaroslav Kysela
8bc1bc53d0 alsaloop: more avail_min cleanups
1) do not increase avail_min forever

It seems that there are broken plugins like pulse which returns from poll()
immediately regardless avail_min settings.

2) remove ommited debug printf()

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-24 16:01:06 +02:00
Jaroslav Kysela
805d30b260 Release v1.1.7
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-16 10:08:36 +02:00
Jaroslav Kysela
6e90e4fe8e alsamixer: fix gcc warnings
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 17:05:22 +02:00
Jaroslav Kysela
d751320608 alsactl: lock - fix the array size (gcc warning)
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 17:01:38 +02:00
Jaroslav Kysela
fb97588025 aplay: add missing block brackets
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 17:00:26 +02:00
Jaroslav Kysela
cc46d02f58 alsaloop: pcmjob - fix few warnings
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:59:28 +02:00
Takashi Sakamoto
46cb575b9b alsactl: use signalfd to catch UNIX signal
In a mode of 'monitor, event loop runs to dispatch asynchronous event
emitted by control node. In this case, UNIX signal is used to terminate
the event loop.

This commit uses signalfd to catch the UNIX signal.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00
Takashi Sakamoto
e57a0a0809 alsactl: handle detection of new sound card
At present, plug-and-play is not supported in a mode of 'monitor',
thus new sound card is not handled during runtime. This is not happy.

This commit uses Linux-specific inotify(7) to monitor '/dev/snd'
directory. When some files are newly added to the directory,
event dispatcher is suspended. Event sources are scanned again and the
dispatcher continue to run.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00
Takashi Sakamoto
440ea7d38d alsactl: handle disconnection of sound card
Once sound card becomes disconnection state, corresponding control node
becomes to emit error event for listeners. When catching this type of
event, event dispatcher should stop observation of the node. However,
at present, a mode of monitor can't handle this correctly. As a result,
poll(2) is executed quite frequently in loop with no wait. This results
100% consumption of CPU time.

This commit takes the dispatcher to remove the node from observation
list when detecting the disconnection state.

Reported-by: Thomas Gläßle <thomas@coldfix.de>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00
Takashi Sakamoto
af14a2fab0 alsactl: obsolete array for maintenance of handlers
In former commits, handlers of control node are maintained by link list,
instead of one-dimensional array.

This commit obsoletes the array and split source preparation to a
function.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00
Takashi Sakamoto
89ab7146ba alsactl: use a list of source for event dispatcher instead of an array of source
In a previous commit, handlers of control nodes are maintained by link
list.

This commit uses the list to register/unregister event sources to
dispatcher.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00
Takashi Sakamoto
5e010366d3 alsactl: use link list to maintain source of events
At present, handlers for control nodes are maintained by one-dimensional
array. This is not necessarily useful to maintain handlers with
associated information.

This commit adds link-list for the maintenance.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 16:57:15 +02:00