[alsa-devel] [PATCH 00/23] alsa-utils: rewrite aplay

[Takashi Sakamoto]

Hi,

I think all of you in this mailing list might have used the command 'aplay',
at least once. This patchset is my attempt to rewrite it because current
shape of code is not enough good. Especially, ALSA PCM interface have got
extensions since aplay was firstly developed. One of my motivation is to
refine the tool to test such extensions.

Below diagram illustrates new internal design of this program:

                                             <-> container <-> (file)
(device) <-> (alsa-lib) <-> xfer <-> aligner <-> container <-> (file)
                                             <-> container <-> (file)

For description of each modules, please read patch comment.

This patchset is early preview for developers to see the above design, thus
some features of original aplay are not still implemented. Especially, some
options have no actual effect even if they're parsed. Presently, I see below
command lines run as I expected:

$ ./aplay -C (-v) (-M)(-N) -D [hw:0,0|default] record.wav 
$ ./aplay -P (-v) (-M)(-N) -D [hw:0,0|default] playback.wav
$ ./aplay --list-devices
$ ./aplay --list-pcm
$ ./aplay --version

Here, I work with Intel HDA (hw:0,0) and pulse PCM plugin (default).

It's my pleasure if received some comments from you.

Takashi Sakamoto (23):
  aplay: add an abstraction of container to parse/build audio-specific
    data format
  aplay: add an implementation of container for Microsoft/IBM RIFF/Wave
    format
  aplay: add an implementation of container for Sparc AU format
  aplay: add an implementation of container for Creative Tech. voice
    format
  aplay: add an implementation of container for raw format
  aplay: aligner: add an abstraction to align buffers with different
    data
  aplay: add an implementation of aligner for single target
  aplay: add an implementation of aligner for multiple target
  aplay: add an abstruction of waiter for I/O event notification
  aplay: add an implementation of waiter for poll(2)
  aplay: add an implementation of waiter for epoll(7)
  aplay: options: add a parser for command-line options
  aplay: add an abstraction for transferring of PCM frames
  aplay: add an implementation for transferring by ALSA PCM APIs
  aplay: add implementation of I/O
  aplay: add implementations to scheduling
  aplay: add a sub-command to print list of PCMs/devices
  aplay: add a sub-command to transfer data frames
  aplay: obsolete main routine and introduce sub-command style
  aplay: add an implementation for volume unit meter
  aplay: add a parser for channel map API
  aplay: add a handler for key events
  aplay: add a feature to generate PID file

 aplay/Makefile.am             |   48 +-
 aplay/aligner-multiple.c      |  337 ++++
 aplay/aligner-single.c        |  256 +++
 aplay/aligner.c               |  122 ++
 aplay/aligner.h               |   88 ++
 aplay/aplay.c                 | 3425 -----------------------------------------
 aplay/container-au.c          |  203 +++
 aplay/container-riff-wave.c   |  549 +++++++
 aplay/container-voc.c         |  736 +++++++++
 aplay/container.c             |  375 +++++
 aplay/container.h             |  127 ++
 aplay/formats.h               |  134 --
 aplay/key-event.c             |  120 ++
 aplay/key-event.h             |   21 +
 aplay/main.c                  |  178 +++
 aplay/main.h                  |   32 +
 aplay/options.c               |  674 ++++++++
 aplay/options.h               |   71 +
 aplay/subcmd-list.c           |  233 +++
 aplay/subcmd-transfer.c       |  431 ++++++
 aplay/vumeter.c               |  299 ++++
 aplay/vumeter.h               |   50 +
 aplay/waiter-epoll.c          |   76 +
 aplay/waiter-poll.c           |   66 +
 aplay/waiter.c                |   61 +
 aplay/waiter.h                |   59 +
 aplay/xfer-alsa-io-mmap.c     |  135 ++
 aplay/xfer-alsa-io-rw.c       |  370 +++++
 aplay/xfer-alsa-sched-irq.c   |   18 +
 aplay/xfer-alsa-sched-timer.c |   49 +
 aplay/xfer-alsa.c             |  610 ++++++++
 aplay/xfer-alsa.h             |   67 +
 aplay/xfer.c                  |  124 ++
 aplay/xfer.h                  |   74 +
 configure.ac                  |    2 +-
 35 files changed, 6655 insertions(+), 3565 deletions(-)
 create mode 100644 aplay/aligner-multiple.c
 create mode 100644 aplay/aligner-single.c
 create mode 100644 aplay/aligner.c
 create mode 100644 aplay/aligner.h
 delete mode 100644 aplay/aplay.c
 create mode 100644 aplay/container-au.c
 create mode 100644 aplay/container-riff-wave.c
 create mode 100644 aplay/container-voc.c
 create mode 100644 aplay/container.c
 create mode 100644 aplay/container.h
 delete mode 100644 aplay/formats.h
 create mode 100644 aplay/key-event.c
 create mode 100644 aplay/key-event.h
 create mode 100644 aplay/main.c
 create mode 100644 aplay/main.h
 create mode 100644 aplay/options.c
 create mode 100644 aplay/options.h
 create mode 100644 aplay/subcmd-list.c
 create mode 100644 aplay/subcmd-transfer.c
 create mode 100644 aplay/vumeter.c
 create mode 100644 aplay/vumeter.h
 create mode 100644 aplay/waiter-epoll.c
 create mode 100644 aplay/waiter-poll.c
 create mode 100644 aplay/waiter.c
 create mode 100644 aplay/waiter.h
 create mode 100644 aplay/xfer-alsa-io-mmap.c
 create mode 100644 aplay/xfer-alsa-io-rw.c
 create mode 100644 aplay/xfer-alsa-sched-irq.c
 create mode 100644 aplay/xfer-alsa-sched-timer.c
 create mode 100644 aplay/xfer-alsa.c
 create mode 100644 aplay/xfer-alsa.h
 create mode 100644 aplay/xfer.c
 create mode 100644 aplay/xfer.h

-- 
2.11.0