[pulseaudio-discuss] [PATCH v2 0/4] Add support for libsoxr resampler

[Andrey Semashev]

This is an updated set of patches first announced and discussed here:

http://comments.gmane.org/gmane.comp.audio.pulseaudio.general/22158

Changes to the original patches:

* Removed the -lq quality preset, only -mq, -hq and -vhq presets are left.
* Removed the fix to the sample_format_more_precise function as it was factored out to a separate patch, which was committed.
* Changed the asserts in switch/case statements to the pa_assert_not_reached() macro and also some comments as suggested.
* Explicitly provide runtime_spec with thread number 1 to soxr_create so that we're guaranteed to not use multithreading. This is equivalent to the previous code that relied on the default.
* Changed choose_work_format() so that soxr uses the common case branch rather than its own. Removed the duplicate condition from it to simplify code slightly.
* Updated docs so that it better describes pros and cons of the new resampler and its presets.

Andrey Semashev (4):
  Added libsoxr resampler backend.
  Enabled libsoxr resampler backend.
  Added libsoxr detection and optional build of soxr resampler backend.
  Added documentation for soxr resampling methods.

 configure.ac                   |  17 +++++
 man/pulse-daemon.conf.5.xml.in |  14 +++-
 src/Makefile.am                |   6 ++
 src/pulsecore/resampler.c      |  25 ++++--
 src/pulsecore/resampler.h      |   4 +
 src/pulsecore/resampler/soxr.c | 170 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 228 insertions(+), 8 deletions(-)
 create mode 100644 src/pulsecore/resampler/soxr.c

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2.1.0