linux-kernel - Re: [PATCH v3 00/10] ASoC: qdsp6: add gapless compressed audio support

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Date:   Mon, 27 Jul 2020 10:24:34 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        broonie@...nel.org
Cc:     vkoul@...nel.org, perex@...ex.cz, tiwai@...e.com,
        lgirdwood@...il.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, ckeepax@...nsource.cirrus.com
Subject: Re: [PATCH v3 00/10] ASoC: qdsp6: add gapless compressed audio
 support



On 7/27/20 4:37 AM, Srinivas Kandagatla wrote:
> This patchset adds gapless compressed audio support on q6asm.
> Gapless on q6asm is implemented using 2 streams in a single q6asm session.
> 
> First few patches such as stream id per each command, gapless flags
> and silence meta data are for preparedness for adding gapless support.
> Last patch implements copy callback to allow finer control over buffer offsets,
> specially in partial drain cases.
> 
> This patchset is tested on RB3 aka DB845c platform.
> 
> This patchset as it is will support gapless however QDSP can also
> support switching decoders on a single stream. Patches to support such feature
> are send in different patchset which involves adding generic interfaces.
> 
> Thanks,
> srini

I've run out of comments :-)

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

> Changes since v2:(mostly suggested by Pierre)
> - removed unnessary kernel style comments,
> - moved TIMESTAMP flag to respective patch.
> - move preparatory code from gapless support patch to new one.
> - fix subject prefix of one patch.
> - add comments to clarify valid stream_ids
> 
> Srinivas Kandagatla (10):
>    ASoC: q6asm: rename misleading session id variable
>    ASoC: q6asm: make commands specific to streams
>    ASoC: q6asm: use flags directly from q6asm-dai
>    ASoC: q6asm: add length to write command token
>    ASoC: q6asm: add support to remove intial and trailing silence
>    ASoC: q6asm: add support to gapless flag in q6asm open
>    ASoC: q6asm-dai: add next track metadata support
>    ASoC: q6asm-dai: prepare set params to accept profile change
>    ASoC: q6asm-dai: add gapless support
>    ASoC: q6asm-dai: add support to copy callback
> 
>   sound/soc/qcom/qdsp6/q6asm-dai.c | 414 +++++++++++++++++++++++--------
>   sound/soc/qcom/qdsp6/q6asm.c     | 169 +++++++++----
>   sound/soc/qcom/qdsp6/q6asm.h     |  49 ++--
>   3 files changed, 469 insertions(+), 163 deletions(-)
>