ASoC: SOF: ipc4-topology: Modify the output format selection logic

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Modify the output format selection when there are multiple output
formats available to choose the one that matches the reference params.
The reference params depend on the type of module. In the case of
processing modules, the reference params are based on the selected input
audio format. This would be the case when a processing module does not
perform any format conversion during processing.

The only special case is the copier module. The copier module is capable
of format conversion but it is only used in the case when the output
is fixed to a single format. In the case of a module copier, when there are
multiple formats, the reference params is based on the selected input
params and the output format must match that of the selected input
format. In the case of host copier, the reference params should be
based on the input audio format for playback and the FE hw_params for
capture. In the case DAI copier, the reference params should be based on
the input audio format for capture and the FE hw_params for playback
when there is no format conversion in the pipeline from the host to the
DAI.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-8-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org

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Ranjani Sridharan 2023-05-15 13:33:34 +03:00 • committed by Mark Brown

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commit 1af13f221a

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sound/soc/sof/ipc4-topology.c

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