umc_reverb_filter.h

来自「audio-video-codecs.rar语音编解码器」· C头文件 代码 · 共 81 行

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2005-2006 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __UMC_REVERB_FILTER_H__
#define __UMC_REVERB_FILTER_H__

#include "umc_base_codec.h"
#include "reverb_filter.h"
#include "ipp.h"

namespace UMC
{
  class ReverbFilterParams : public BaseCodecParams
    {
        DYNAMIC_CAST_DECL_BASE(ReverbFilterParams);

    public:
      Ipp32s fileSampleRate;
      Ipp32s fileChannels;
      Ipp32s maxFrameLen;
      bool eReflect;
      bool lReflect;
      Ipp32f eReflectScale;
      Ipp32f decayTime;
      Ipp32f outputLevel;
      Ipp32s EarlyReflectionsDelayLineLen; /* needed for user to clean the filter */
    };

    class ReverbFilter : public BaseCodec
    {
    DYNAMIC_CAST_DECL_BASE(ReverbFilter);

    public:
      ReverbFilter();
      ~ReverbFilter(void);

      Status Init(BaseCodecParams* params);

      Status GetFrame(MediaData* in_data, MediaData* out_data);

      Status Close();

      Status Reset() {
        return UMC_ERR_NOT_IMPLEMENTED;
      };

      Status GetInfo(BaseCodecParams* info);

      Status SetParams(BaseCodecParams* params);

    protected:

      Ipp16s  **frameBuf16;
      Ipp32f  **frameBuf32;
      Ipp32f  **frameBuf32dst;

      ReverbState *pRevState;
      FileInfo    *pFileInfo;

      Ipp32s RevFIRFilterInit(ReverbState *);
      Ipp32s RevFIRFilterFree(ReverbState *);
      Ipp32s Reverberate(Ipp32f **, Ipp32f **, Ipp32s, ReverbState *);
      Ipp32s RevExtraDelayInit(ReverbState *);
      Ipp32s RevExtraDelayFree(ReverbState *);
      Ipp32s RevCombFilterInit(ReverbState *);
      Ipp32s RevCombFilterFree(ReverbState *);
      Ipp32s RevAPFilterInit(ReverbState *);
      Ipp32s RevAPFilterFree(ReverbState *);
  };

}

#endif  /* __UMC_REVERB_FILTER_H__ */