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EQ FIR: Improve robustness with configuration blobs #213

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Aug 10, 2018
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EQ FIR: Improve robustness with configuration blobs #213

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12 changes: 11 additions & 1 deletion src/audio/eq_fir.c
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Original file line number Diff line number Diff line change
Expand Up @@ -175,7 +175,17 @@ static int eq_fir_setup(struct fir_state_32x16 fir[],
/* Initialize 1st phase */
trace_eq("asr");
for (i = 0; i < nch; i++) {
resp = assign_response[i];
/* If the configuration blob contains less channels for
* response assign to channels than the current channels count
* use the first channel response to remaining channels. E.g.
* a blob that contains just a mono EQ can be used for stereo
* stream by using the same response for all channels.
*/
if (i < config->channels_in_config)
resp = assign_response[i];
else
resp = assign_response[0];

trace_value(resp);
if (resp >= config->number_of_responses || resp < 0) {
trace_eq_error("eas");
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