shithub: opus-tools

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Add support for the OPUS_SET_GAIN CTL if available.

This moves the opus gain rescaling into the codec itself.

--- a/src/opusdec.c

+++ b/src/opusdec.c

@@ -452,7 +452,23 @@

    *streams=header.nb_streams;

-   *gain = pow(10., header.gain/5120.);

+   if(header.gain!=0)

+   {

+      /*Gain API added in a newer libopus version..*/

+#ifdef OPUS_SET_GAIN

+      err=opus_multistream_decoder_ctl(st,OPUS_SET_GAIN(header.gain));

+      if(err==OPUS_UNIMPLEMENTED)

+      {

+#endif

+         *gain = pow(10., header.gain/5120.);

+#ifdef OPUS_SET_GAIN

+      } else if (err!=OPUS_OK)

+      {

+         fprintf (stderr, "Error setting gain: %s\n", opus_strerror(err));

+         return NULL;

+      }

+#endif

+   }

    if (!quiet)

    {