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[0/3] adding 705.6/768kHz rates; DSD and 768kHz in aloop

Message ID 20240416121726.628679-1-pavel.hofman@ivitera.com
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Series adding 705.6/768kHz rates; DSD and 768kHz in aloop | expand

Message

Pavel Hofman April 16, 2024, 12:17 p.m. UTC 
This patch series allows using the loopback driver in modern chains with
samplerates up to 768kHz and DSD formats.

The patch "ALSA:pcm: add support for 705.6kHz and 768kHz sample rates" is
basically a copy of commit 4cc4531c310e ("ALSA: pcm: add support for 352.8KHz and 384KHz sample rate").

As of loopback performance at 768kHz - in my tests aloop runs OK event at
12MHz samplerate.

Pavel Hofman (3):
  ALSA:aloop: add DSD formats
  ALSA:pcm: add support for 705.6kHz and 768kHz sample rates
  ALSA:aloop: add support for up to 768kHz sample rate

 include/sound/pcm.h     | 5 +++++
 sound/core/pcm_native.c | 2 +-
 sound/drivers/aloop.c   | 9 ++++++---
 3 files changed, 12 insertions(+), 4 deletions(-)

Comments

Jaroslav Kysela April 16, 2024, 1:49 p.m. UTC | #1 
On 16. 04. 24 14:17, Pavel Hofman wrote:
> This patch series allows using the loopback driver in modern chains with
> samplerates up to 768kHz and DSD formats.
> 
> The patch "ALSA:pcm: add support for 705.6kHz and 768kHz sample rates" is
> basically a copy of commit 4cc4531c310e ("ALSA: pcm: add support for 352.8KHz and 384KHz sample rate").
> 
> As of loopback performance at 768kHz - in my tests aloop runs OK event at
> 12MHz samplerate.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>

Note that the kernel patches should go through <linux-sound@vger.kernel.org> 
mailing list (see MAINTAINERS) now.

Link: 
https://lore.kernel.org/alsa-devel/20240416121726.628679-1-pavel.hofman@ivitera.com/

					Jaroslav
Takashi Iwai April 18, 2024, 7:31 a.m. UTC | #2 
On Tue, 16 Apr 2024 14:17:23 +0200,
Pavel Hofman wrote:
> 
> This patch series allows using the loopback driver in modern chains with
> samplerates up to 768kHz and DSD formats.
> 
> The patch "ALSA:pcm: add support for 705.6kHz and 768kHz sample rates" is
> basically a copy of commit 4cc4531c310e ("ALSA: pcm: add support for 352.8KHz and 384KHz sample rate").
> 
> As of loopback performance at 768kHz - in my tests aloop runs OK event at
> 12MHz samplerate.
> 
> Pavel Hofman (3):
>   ALSA:aloop: add DSD formats
>   ALSA:pcm: add support for 705.6kHz and 768kHz sample rates
>   ALSA:aloop: add support for up to 768kHz sample rate

Applied to for-next branch now.  Thanks.


Takashi