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mux: add separated .params() for demux to fix noise issue #2653

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mux: add separated .params() for demux to fix noise issue #2653

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19 changes: 14 additions & 5 deletions src/audio/mux/mux.c
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Original file line number Diff line number Diff line change
Expand Up @@ -183,7 +183,7 @@ static int mux_params(struct comp_dev *dev,
struct sof_ipc_stream_params *params)
{
struct comp_data *cd = comp_get_drvdata(dev);
struct comp_buffer *sinkb;
struct comp_buffer *muxed_buf;
int err;

comp_info(dev, "mux_params()");
Expand All @@ -194,11 +194,20 @@ static int mux_params(struct comp_dev *dev,
return -EINVAL;
}

sinkb = list_first_item(&dev->bsink_list, struct comp_buffer,
source_list);
/* get the params from the muxed buffer (the "1' in 1->N or N->1) */
if (dev->comp.type == SOF_COMP_MUX)
/* N->1 mux, get the sink buffer */
muxed_buf = list_first_item(&dev->bsink_list,
struct comp_buffer,
source_list);
else
/* 1->N demux, get the source buffer */
muxed_buf = list_first_item(&dev->bsource_list,
struct comp_buffer,
sink_list);

cd->config.num_channels = sinkb->stream.channels;
cd->config.frame_format = sinkb->stream.frame_fmt;
cd->config.num_channels = muxed_buf->stream.channels;
cd->config.frame_format = muxed_buf->stream.frame_fmt;

return 0;
}
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