text: /*
   *  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.
   */
  
  #ifndef WEBRTC_MODULES_AUDIO_CODING_MAIN_SOURCE_ACM_SPEEX_H_
  #define WEBRTC_MODULES_AUDIO_CODING_MAIN_SOURCE_ACM_SPEEX_H_
  
  #include "webrtc/modules/audio_coding/main/source/acm_generic_codec.h"
  
  // forward declaration
  struct SPEEX_encinst_t_;
  struct SPEEX_decinst_t_;
  
  namespace webrtc {
  
  class ACMSPEEX : public ACMGenericCodec {
   public:
    explicit ACMSPEEX(WebRtc_Word16 codec_id);
    ~ACMSPEEX();
  
    // for FEC
    ACMGenericCodec* CreateInstance(void);
  
    WebRtc_Word16 InternalEncode(WebRtc_UWord8* bitstream,
                                 WebRtc_Word16* bitstream_len_byte);
  
    WebRtc_Word16 InternalInitEncoder(WebRtcACMCodecParams *codec_params);
  
    WebRtc_Word16 InternalInitDecoder(WebRtcACMCodecParams *codec_params);
  
   protected:
    WebRtc_Word16 DecodeSafe(WebRtc_UWord8* bitstream,
                             WebRtc_Word16 bitstream_len_byte,
                             WebRtc_Word16* audio,
                             WebRtc_Word16* audio_samples,
                             WebRtc_Word8* speech_type);
  
    WebRtc_Word32 CodecDef(WebRtcNetEQ_CodecDef& codec_def,
                           const CodecInst& codec_inst);
  
    void DestructEncoderSafe();
  
    void DestructDecoderSafe();
  
    WebRtc_Word16 InternalCreateEncoder();
  
    WebRtc_Word16 InternalCreateDecoder();
  
    void InternalDestructEncoderInst(void* ptr_inst);
  
    WebRtc_Word16 SetBitRateSafe(const WebRtc_Word32 rate);
  
    WebRtc_Word16 EnableDTX();
  
    WebRtc_Word16 DisableDTX();
  
  #ifdef UNUSEDSPEEX
    WebRtc_Word16 EnableVBR();
  
    WebRtc_Word16 DisableVBR();
  
    WebRtc_Word16 SetComplMode(WebRtc_Word16 mode);
  #endif
  
    SPEEX_encinst_t_* encoder_inst_ptr_;
    SPEEX_decinst_t_* decoder_inst_ptr_;
    WebRtc_Word16 compl_mode_;
    bool vbr_enabled_;
    WebRtc_Word32 encoding_rate_;
    WebRtc_Word16 sampling_frequency_;
    WebRtc_UWord16 samples_in_20ms_audio_;
  };
  
  }  // namespace webrtc
  
  #endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_SOURCE_ACM_SPEEX_H_
  