ac_5p1_wav_file.h

audio-video-codecs.rar语音编解码器

/*//////////////////////////////////////////////////////////////////////////////
//
//                  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 __AC_5P1_WAV_FILE_H__
#define __AC_5P1_WAV_FILE_H__

#include "ac_5p1_audio_file.h"

class   WavFile:public AudioFile {
public:
  struct Info {
    Ipp32u format_tag;    // / 1 = PCM
    Ipp32u sample_rate;   // / f.e. 44100
    Ipp32u resolution;    // / 8,16,32 bits, etc
    Ipp32u channels_number;
    Ipp32u channel_mask;  // /
  };

public:
  WavFile();
  ~WavFile();

  virtual Ipp32s Open(vm_char *p_filename, Ipp32u mode);
  virtual Ipp32s Close();
  virtual Ipp32s Write(void *p_data, size_t size);
  virtual Ipp32s Read(void *p_data, size_t size);

  virtual Ipp32s SetInfo(Info * p_info);
  virtual Ipp32s GetInfo(Info * p_info);

protected:
  void   *m_file_handle;
  Ipp32u  m_open_mode;
  Ipp32s  m_is_first_time;
  Ipp32s  m_is_info_valid;
  Info    m_info;

  Ipp32u  m_data_size;
  Ipp32u  m_riff_size;

protected:
  Ipp32s  ReadHeaderInfo();
};

#endif //__AC_5P1_WAV_FILE_H__