Fix missed optimization opportunity in dsp_process.

Input type can only change once per call because the DSP parameters
are only copied at the start and input is always taken from the src
buffer which means sample input format switching can be once per call
instead of once per loop.

Change-Id: Ifa3521753428fb0e6997e4934f24a3b915628cc7

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/rbcodec/dsp/dsp_core.c b/lib/rbcodec/dsp/dsp_core.c
index c54bda17a9..5e365eb08d 100644
--- a/lib/rbcodec/dsp/dsp_core.c
+++ b/lib/rbcodec/dsp/dsp_core.c
@@ -414,15 +414,15 @@ void dsp_process(struct dsp_config *dsp, struct dsp_buffer *src,
     /* Tag input with codec-specified sample format */
     src->format = dsp->io_data.format;
 
+    if (src->format.version != dsp->io_data.sample_buf.format.version)
+        dsp_sample_input_format_change(&dsp->io_data, &src->format);
+
     while (1)
     {
         /* Out-of-place-processing stages take the current buf as input
          * and switch the buffer to their own output buffer */
         struct dsp_buffer *buf = src;
 
-        if (UNLIKELY(buf->format.version != dsp->io_data.sample_buf.format.version))
-            dsp_sample_input_format_change(&dsp->io_data, &buf->format);
-
         /* Convert input samples to internal format */
         dsp->io_data.input_samples(&dsp->io_data, &buf);