Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/g722/include/g722_interface.h

 /*
  *  Copyright (c) 2011 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 76 matching lines @@
  *                              a packet
  *     - speechIn             : Input speech vector
  *     - len                  : Samples in speechIn
  *
  * Output:
  *        - encoded           : The encoded data vector
  *
  * Return value               : Length (in bytes) of coded data
  */
 
-int16_t WebRtcG722_Encode(G722EncInst* G722enc_inst,
-                          const int16_t* speechIn,
-                          int16_t len,
-                          uint8_t* encoded);
+size_t WebRtcG722_Encode(G722EncInst* G722enc_inst,
+                         const int16_t* speechIn,
+                         size_t len,
+                         uint8_t* encoded);
 
 
 /****************************************************************************
  * WebRtcG722_CreateDecoder(...)
  *
  * Create memory used for G722 encoder
  *
  * Input:
  *     - G722dec_inst         : G722 instance for decoder
  *
@@ skipping 44 matching lines @@
  *     - G722dec_inst       : G722 instance, i.e. the user that should decode
  *                            a packet
  *     - encoded            : Encoded G722 frame(s)
  *     - len                : Bytes in encoded vector
  *
  * Output:
  *        - decoded         : The decoded vector
  *      - speechType        : 1 normal, 2 CNG (Since G722 does not have its own
  *                            DTX/CNG scheme it should always return 1)
  *
- * Return value             : >0 - Samples in decoded vector
- *                            -1 - Error
+ * Return value             : Samples in decoded vector
  */
 
-int16_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
-                          const uint8_t* encoded,
-                          int16_t len,
-                          int16_t *decoded,
-                          int16_t *speechType);
+size_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
+                         const uint8_t* encoded,
+                         size_t len,
+                         int16_t *decoded,
+                         int16_t *speechType);
 
 /****************************************************************************
  * WebRtcG722_Version(...)
  *
  * Get a string with the current version of the codec
  */
 
 int16_t WebRtcG722_Version(char *versionStr, short len);
 
 
 #ifdef __cplusplus
 }
 #endif
 
 
 #endif /* MODULES_AUDIO_CODING_CODECS_G722_MAIN_INTERFACE_G722_INTERFACE_H_ */