Re: [PATCH 00/15] reduce audio playback latency

[Volker Rümelin]

> This patch series reduces the playback latency for audio backends,
> in some cases significantly. For PulseAudio, the audio buffer is
> also moved from the QEMU side to the PulseAudio server side. This
> improves the drop-out safety for PulseAudio.

> Volker Rümelin (15):
>   audio: replace open-coded buffer arithmetic
>   audio: move function audio_pcm_hw_clip_out()
>   audio: add function audio_pcm_hw_conv_in()
>   audio: inline function audio_pcm_sw_get_rpos_in()
>   paaudio: increase default latency to 46ms
>   jackaudio: use more jack audio buffers
>   audio: copy playback stream in sequential order
>   audio: add pcm_ops function table for capture backend
>   audio: revert tests for pcm_ops table
>   audio: restore mixing-engine playback buffer size
>   paaudio: reduce effective playback buffer size
>   dsoundaudio: reduce effective playback buffer size
>   ossaudio: reduce effective playback buffer size
>   paaudio: fix samples vs. frames mix-up
>   sdlaudio: fix samples vs. frames mix-up
>
>  audio/alsaaudio.c   |   1 +
>  audio/audio.c       | 194 ++++++++++++++++++++++++--------------------
>  audio/audio_int.h   |   9 +-
>  audio/coreaudio.c   |  13 +--
>  audio/dsoundaudio.c |  30 ++++---
>  audio/jackaudio.c   |   5 +-
>  audio/noaudio.c     |   1 +
>  audio/ossaudio.c    |  17 +++-
>  audio/paaudio.c     |  49 ++++++-----
>  audio/sdlaudio.c    |  21 +++--
>  audio/wavaudio.c    |   1 +
>  11 files changed, 199 insertions(+), 142 deletions(-)

I used the wrong mail address to send these patches. I'll wait a few 
days for reviews before I send a version 2 series with the correct address.

With best regards,
Volker