Home | History | Annotate | Download | only in source 
      1 /*
      2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 /*
     12  * crc.h
     13  *
     14  * Checksum functions
     15  *
     16  */
     17 
     18 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_
     19 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_
     20 
     21 #include "typedefs.h"
     22 
     23 /****************************************************************************
     24  * WebRtcIsac_GetCrc(...)
     25  *
     26  * This function returns a 32 bit CRC checksum of a bit stream
     27  *
     28  * Input:
     29  *  - encoded      : payload bit stream
     30  *  - no_of_word8s : number of 8-bit words in the bit stream
     31  *
     32  * Output:
     33  *  - crc          : checksum
     34  *
     35  * Return value    :  0 - Ok
     36  *                   -1 - Error
     37  */
     38 
     39 WebRtc_Word16 WebRtcIsac_GetCrc(
     40     const WebRtc_Word16* encoded,
     41     WebRtc_Word16        no_of_word8s,
     42     WebRtc_UWord32*      crc);
     43 
     44 
     45 
     46 #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_ */
     47