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Audio: Selector: Add support for multiple up/down-mix profiles#10613

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singalsu wants to merge 3 commits intothesofproject:mainfrom
singalsu:selector_multiblob_support
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Audio: Selector: Add support for multiple up/down-mix profiles#10613
singalsu wants to merge 3 commits intothesofproject:mainfrom
singalsu:selector_multiblob_support

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This patch extends the struct ipc4_selector_coeffs_config. The
first 16-bit reserved field is split into to 8-bit field
for source and sink channels count.

The configuration is changed to array of the previous structs
instead of single. When preparing for stream the array is checked
for matching number of channels for source and sink and if found
the coefficients for the channels counts is selected into use.

The change avoids the need for user space to update the
configuration in runtime if the blob used for initialization
contains all the needed channels up/down-mix profiles.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch modifies the configuration blobs build script
sof_selector_blobs.m to create one blob that contains several
of them for the purpose to up or down-mix DSP offloaded decoder
output. The blob uses the reserved fields of selector configuration
to describe source and sink channel counts and channel config
values. The exported blob is "stereo_endpoint_playback_updownmix.conf".

The single configuration blobs continue to be with the reserved
fields as zeros. The .conf blobs may be removed later when other
topologies are modified to not use them.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds for micsel component configuration blob
"stereo_endpoint_playback_updownmix.conf". It contains the
needed up-mix and down-mix coefficients to handle playback
of mono, 5.1 and 7.1 channels into stereo endpoint.

The old configuration blobs with five and seven channels
without LFE channel are removed. Despite the file names with
"51" and "71" the blobs are not suitable for 6ch or 8ch
handling.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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WIP - I seem to have still incorrect channels order assumption for 5.1 format.

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