This commit closes file descriptor outside of container module so
that maintenance of lifetime for the descriptor is delegated to container
user.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Internal container module operates file descriptor to media file. For
this purpose, the structure has fd member and any file operation is done
internally. However, the case to use special file descriptor such as
memfd requires to maintain file descriptor externally.
This commit opens file descriptor outside of container module. The
internal APIs to initialize container get an argument for the file
descriptor instead of file path.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit unifies duplicated code to allocate for container structure.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
uint64_t evaluates to unsigned long long on 32-bit, not unsigned long.
Use the proper formats.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When subcommands are operated, top-most two arguments are already
parsed in renewed command system, thus they're useless. Besides,
they're possible to be parsed by getopt_long(3).
This commit truncates these options before entering subcommand
operation.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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>
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>
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>
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>
