[Sound-open-firmware] [PATCH 1/4] SRC: Bug fixes, add support for int16 coefficients, comments cleanup

[Liam Girdwood]

On Fri, 2017-08-25 at 18:29 +0300, Seppo Ingalsuo wrote:
> This patch fixes bugs in sink and source buffers handling and adds
> support for short coefficient type to save RAM in platforms with less
> space such as BYT. The patch introduces also a RAM saving minimum
> conversions set between 16, 44.1, and 48 kHz. A new possible rate 18.9 kHz
> was added to supported rates indication bits. SRC filters quality is also
> adjusted for lower default performance. The higher performance will need
> >16bit coefficients usage. The larger conversion set and 32 bit
> filter coefficients can be easily restored with the SRC tools in rimage.
> 
> Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo at linux.intel.com>
> ---
>  src/audio/src.c                                    |   62 +-
>  src/audio/src_core.c                               |   67 +-
>  src/audio/src_core.h                               |   11 +
>  .../coefficients/src/src_int16_1_3_4375_5000.h     |  251 +++++
>  .../coefficients/src/src_int16_20_21_4020_5000.h   | 1066 ++++++++++++++++++++
>  .../coefficients/src/src_int16_21_20_4020_5000.h   | 1056 +++++++++++++++++++
>  .../coefficients/src/src_int16_3_1_4375_5000.h     |  252 +++++
>  .../coefficients/src/src_int16_7_8_4375_5000.h     |  657 ++++++++++++
>  .../coefficients/src/src_int16_8_7_4375_5000.h     |  662 ++++++++++++
>  .../reef/audio/coefficients/src/src_int16_define.h |   11 +
>  .../reef/audio/coefficients/src/src_int16_table.h  |   32 +
>  11 files changed, 4076 insertions(+), 51 deletions(-)
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_1_3_4375_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_20_21_4020_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_21_20_4020_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_3_1_4375_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_7_8_4375_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_8_7_4375_5000.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_define.h
>  create mode 100644 src/include/reef/audio/coefficients/src/src_int16_table.h

I've applied for 1.0-rc1, but we need to revisit the division in copy().

Thanks

Liam