Adding audio network adaptor to AudioEncoderOpus.

webrtc/modules/audio_coding/codecs/opus/opus_interface.h

Index: webrtc/modules/audio_coding/codecs/opus/opus_interface.h
diff --git a/webrtc/modules/audio_coding/codecs/opus/opus_interface.h b/webrtc/modules/audio_coding/codecs/opus/opus_interface.h
index d3c314e25afefbc4e1a81fdc24c89a6501412e5a..3db5152e47d842574b86a236301ccfe66a475832 100644
--- a/webrtc/modules/audio_coding/codecs/opus/opus_interface.h
+++ b/webrtc/modules/audio_coding/codecs/opus/opus_interface.h
@@ -215,7 +215,7 @@ int16_t WebRtcOpus_SetComplexity(OpusEncInst* inst, int32_t complexity);
  * Return value              :  0 - Success
  *                             -1 - Error
  */
-int16_t WebRtcOpus_SetForceChannels(OpusEncInst* inst, int32_t num_channels);
+int16_t WebRtcOpus_SetForceChannels(OpusEncInst* inst, size_t num_channels);

[minyue-webrtc, 2016/10/06 11:24:05]

I found that size_t suits better here and can avoid casting when being called
from AudioEncoderOpus.

Since WebRtcOpus_SetForceChannels's only use case is in this CL, I think it is
fine to fix this nit in this CL.

[kwiberg-webrtc, 2016/10/06 12:18:10]

Acknowledged.

 
 int16_t WebRtcOpus_DecoderCreate(OpusDecInst** inst, size_t channels);
 int16_t WebRtcOpus_DecoderFree(OpusDecInst* inst);