[Qemu-devel] [PATCH 0/5] audio: multi channel audio support

[Kővágó, Zoltán]

This patch series adds support to more than two channels of audio (5.1,
7.1, etc.).  Currently only usb-audio frontend and alsa and pa backends
are updated.  Using more than two channels requires turning off mixeng
(-audiodev backend,id=foo,out.mixeng=off,...).

Currently you have to specify the number of channels you want to use
when creating the usb-audio device, see the last commit for details.
To do this I currently dynamically allocate the whole USBDesc structure,
which looks ugly.  If there's a better way, please let me know!

These patches requires my previous -audiodev patches:
https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg00827.html

Please review.

Kővágó, Zoltán (5):
  audio: replace shift in audio_pcm_info with bytes_per_frame
  audio: basic support for multichannel audio
  paaudio: channel-map option
  usb-audio: do not count on avail bytes actually available
  usb-audio: support more than two channels of audio

 audio/alsaaudio.c       |  17 +-
 audio/audio.c           |  70 ++++----
 audio/audio_int.h       |   3 +-
 audio/coreaudio.c       |   4 +-
 audio/dsound_template.h |  10 +-
 audio/dsoundaudio.c     |   4 +-
 audio/noaudio.c         |   2 +-
 audio/ossaudio.c        |  14 +-
 audio/paaudio.c         |  18 +-
 audio/wavaudio.c        |   6 +-
 hw/usb/dev-audio.c      | 441 +++++++++++++++++++++++++++---------------------
 qapi/audio.json         |   5 +-
 qemu-options.hx         |   9 +
 13 files changed, 330 insertions(+), 273 deletions(-)

-- 
2.5.0