linux-kernel - Re: [PATCH v4 0/7] ASoC: fsl: add memory to memory function for ASRC

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Message-ID: <CAA+D8AO7f3z4oetm=2wseSAwN=eFnNePK8VnC31mNw-owZF-ig@mail.gmail.com>
Date: Thu, 24 Oct 2024 13:17:16 +0800
From: Shengjiu Wang <shengjiu.wang@...il.com>
To: Vinod Koul <vkoul@...nel.org>
Cc: Shengjiu Wang <shengjiu.wang@....com>, perex@...ex.cz, tiwai@...e.com, 
	alsa-devel@...a-project.org, linux-sound@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Xiubo.Lee@...il.com, festevam@...il.com, 
	nicoleotsuka@...il.com, lgirdwood@...il.com, broonie@...nel.org, 
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v4 0/7] ASoC: fsl: add memory to memory function for ASRC

On Wed, Oct 23, 2024 at 1:32 PM Vinod Koul <vkoul@...nel.org> wrote:
>
> On 25-09-24, 14:55, Shengjiu Wang wrote:
> > This function is base on the accelerator implementation
> > for compress API:
> > https://patchwork.kernel.org/project/alsa-devel/patch/20240731083843.59911-1-perex@perex.cz/
> > Add it to this patch set.
> >
> > Audio signal processing also has the requirement for memory to
> > memory similar as Video.
> >
> > This asrc memory to memory (memory ->asrc->memory) case is a non
> > real time use case.
> >
> > User fills the input buffer to the asrc module, after conversion, then asrc
> > sends back the output buffer to user. So it is not a traditional ALSA playback
> > and capture case.
> >
> > Because we had implemented the "memory -> asrc ->i2s device-> codec"
> > use case in ALSA.  Now the "memory->asrc->memory" needs
> > to reuse the code in asrc driver, so the patch 1 and patch 2 is for refining
> > the code to make it can be shared by the "memory->asrc->memory"
> > driver.
> >
> > Other change is to add memory to memory support for two kinds of i.MX ASRC
> > modules.
>
> Are there any patches for tinycompress to use the new IOCTLs here, I
> would like to see those changes as well

Yes, just create a pull request here:
https://github.com/alsa-project/tinycompress/pull/26

Best regards
Shengjiu Wang

>
> --
> ~Vinod