/*
 *  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.
 */

#ifndef ACM_AMR_H
#define ACM_AMR_H

#include "acm_generic_codec.h"

// forward declaration
struct AMR_encinst_t_;
struct AMR_decinst_t_;

namespace webrtc
{

enum ACMAMRPackingFormat;

class ACMAMR : public ACMGenericCodec
{
public:
    ACMAMR(WebRtc_Word16 codecID);
    ~ACMAMR();
    // for FEC
    ACMGenericCodec* CreateInstance(void);

    WebRtc_Word16 InternalEncode(
        WebRtc_UWord8* bitstream,
        WebRtc_Word16* bitStreamLenByte);
    
    WebRtc_Word16 InternalInitEncoder(
        WebRtcACMCodecParams *codecParams);
    
    WebRtc_Word16 InternalInitDecoder(
        WebRtcACMCodecParams *codecParams);
    
    WebRtc_Word16 SetAMREncoderPackingFormat(
        const ACMAMRPackingFormat packingFormat);

    ACMAMRPackingFormat AMREncoderPackingFormat() const;

    WebRtc_Word16 SetAMRDecoderPackingFormat(
        const ACMAMRPackingFormat packingFormat);

    ACMAMRPackingFormat AMRDecoderPackingFormat() const;

protected:
    WebRtc_Word16 DecodeSafe(
        WebRtc_UWord8* bitStream,
        WebRtc_Word16  bitStreamLenByte,
        WebRtc_Word16* audio,
        WebRtc_Word16* audioSamples,
        WebRtc_Word8*  speechType);

    WebRtc_Word32 CodecDef(
        WebRtcNetEQ_CodecDef& codecDef,
        const CodecInst&      codecInst);

    void DestructEncoderSafe();

    void DestructDecoderSafe();

    WebRtc_Word16 InternalCreateEncoder();
    
    WebRtc_Word16 InternalCreateDecoder();
    
    void InternalDestructEncoderInst(
        void* ptrInst);

    WebRtc_Word16 SetBitRateSafe(
        const WebRtc_Word32 rate);
   
    WebRtc_Word16 EnableDTX();
    
    WebRtc_Word16 DisableDTX();
  
    WebRtc_Word16 UnregisterFromNetEqSafe(
        ACMNetEQ*     netEq,
        WebRtc_Word16 payloadType);

    AMR_encinst_t_*     _encoderInstPtr;
    AMR_decinst_t_*     _decoderInstPtr;
    WebRtc_Word16       _encodingMode;
    WebRtc_Word16       _encodingRate;
    ACMAMRPackingFormat _encoderPackingFormat;
    ACMAMRPackingFormat _decoderPackingFormat;
};

} // namespace webrtc

#endif // ACM_AMR_H