Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/g722/g722_interface.c

 /*
  *  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 27 matching lines @@
         return 0;
     }
 }
 
 int WebRtcG722_FreeEncoder(G722EncInst *G722enc_inst)
 {
     // Free encoder memory
     return WebRtc_g722_encode_release((G722EncoderState*) G722enc_inst);
 }
 
-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)
 {
     unsigned char *codechar = (unsigned char*) encoded;
     // Encode the input speech vector
     return WebRtc_g722_encode((G722EncoderState*) G722enc_inst, codechar,
                               speechIn, len);
 }
 
 int16_t WebRtcG722_CreateDecoder(G722DecInst **G722dec_inst)
 {
     *G722dec_inst=(G722DecInst*)malloc(sizeof(G722DecoderState));
@@ skipping 16 matching lines @@
         return 0;
     }
 }
 
 int WebRtcG722_FreeDecoder(G722DecInst *G722dec_inst)
 {
     // Free encoder memory
     return WebRtc_g722_decode_release((G722DecoderState*) G722dec_inst);
 }
 
-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)
 {
     // Decode the G.722 encoder stream
     *speechType=G722_WEBRTC_SPEECH;
     return WebRtc_g722_decode((G722DecoderState*) G722dec_inst, decoded,
                               encoded, len);
 }
 
 int16_t WebRtcG722_Version(char *versionStr, short len)
 {
     // Get version string
     char version[30] = "2.0.0\n";
     if (strlen(version) < (unsigned int)len)
     {
         strcpy(versionStr, version);
         return 0;
     }
     else
     {
         return -1;
     }
 }