Adding cbr support for Opus

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

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 162 matching lines @@
  * This function disables Opus internal DTX for encoding.
  *
  * Input:
  *      - inst               : Encoder context
  *
  * Return value              :  0 - Success
  *                             -1 - Error
  */
 int16_t WebRtcOpus_DisableDtx(OpusEncInst* inst);
 
+/****************************************************************************
+ * WebRtcOpus_EnableCbr()
+ *
+ * This function enables CBR for encoding.
+ *
+ * Input:
+ *      - inst               : Encoder context
+ *
+ * Return value              :  0 - Success
+ *                             -1 - Error
+ */
+int16_t WebRtcOpus_EnableCbr(OpusEncInst* inst);
+
+/****************************************************************************
+ * WebRtcOpus_DisableCbr()
+ *
+ * This function disables CBR for encoding.
+ *
+ * Input:
+ *      - inst               : Encoder context
+ *
+ * Return value              :  0 - Success
+ *                             -1 - Error
+ */
+int16_t WebRtcOpus_DisableCbr(OpusEncInst* inst);
+
 /*
  * WebRtcOpus_SetComplexity(...)
  *
  * This function adjusts the computational complexity. The effect is the same as
  * calling the complexity setting of Opus as an Opus encoder related CTL.
  *
  * Input:
  *      - inst               : Encoder context
  *      - complexity         : New target complexity (0-10, inclusive)
  *
@@ skipping 169 matching lines @@
  *                                 1 - the packet contains FEC.
  */
 int WebRtcOpus_PacketHasFec(const uint8_t* payload,
                             size_t payload_length_bytes);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_OPUS_INTERFACE_H_