Audio: MFCC: More updates and topologies to run MFCC for Mel spectrogram audio features in SDW PCs

scripts/rebuild-testbench.sh

@@ -97,7 +97,7 @@ export_xtensa_setup()
     cat <<EOFSETUP > "$export_script"
 export XTENSA_TOOLS_ROOT=$XTENSA_TOOLS_ROOT
 export XTENSA_CORE=$XTENSA_CORE
-XTENSA_PATH=$tools_bin
+export XTENSA_PATH=$tools_bin
 EOFSETUP
 }
 

src/audio/mfcc/Kconfig

@@ -4,7 +4,8 @@ config COMP_MFCC
 	tristate "MFCC component"
 	depends on COMP_MODULE_ADAPTER
 	select CORDIC_FIXED
-	select MATH_16BIT_MEL_FILTERBANK
+	select MATH_32BIT_FFT
+	select MATH_32BIT_MEL_FILTERBANK
 	select MATH_AUDITORY
 	select MATH_DCT
 	select MATH_DECIBELS

src/audio/mfcc/mfcc.c

@@ -160,7 +160,6 @@ static int mfcc_prepare(struct processing_module *mod,
 	enum sof_ipc_frame source_format;
 	enum sof_ipc_frame sink_format;
 	size_t data_size;
-	uint32_t sink_period_bytes;
 	int ret;
 
 	comp_info(dev, "entry");
@@ -178,15 +177,7 @@ static int mfcc_prepare(struct processing_module *mod,
 
 	/* get sink data format and period bytes */
 	sink_format = audio_stream_get_frm_fmt(&sinkb->stream);
-	sink_period_bytes = audio_stream_period_bytes(&sinkb->stream, dev->frames);
-	comp_info(dev, "source_format = %d, sink_format = %d",
-		  source_format, sink_format);
-	if (audio_stream_get_size(&sinkb->stream) < sink_period_bytes) {
-		comp_err(dev, "sink buffer size %d is insufficient < %d",
-			 audio_stream_get_size(&sinkb->stream), sink_period_bytes);
-		ret = -ENOMEM;
-		goto err;
-	}
+	comp_info(dev, "source_format = %d, sink_format = %d", source_format, sink_format);
 
 	cd->config = comp_get_data_blob(cd->model_handler, &data_size, NULL);