umc_mp3_enc_int.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) 2002-2007 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __UMC_MP3_ENC_INT_H__
#define __UMC_MP3_ENC_INT_H__

#include "umc_media_data.h"
#include "umc_audio_codec.h"
#include "audio_codec_params.h"
#include "mp3_status.h"
#include "vm_debug.h"

struct _MP3Enc;

namespace UMC {

/* /////////////////////////////////////////////////////////////////////////////
//  Class:       MP3Encoder
//
//  Notes:       Implementation of MPEG-I layer 3 encoder.
//
*/
  class   MP3EncoderInt:public AudioCodec {
  public:
    Status  Init(BaseCodecParams *init);
    Status  Close();

    Status  GetFrame(MediaData *in, MediaData *out);

    Status  GetInfo(BaseCodecParams *init);
    Status  GetDuration(Ipp32f *p_duration);

    MP3EncoderInt(void);
    ~MP3EncoderInt();

    Status  SetParams(BaseCodecParams * params);
    Status  Reset();

    IppBool CheckBitRate(Ipp32s sample_rate,
                         Ipp32s layer,
                         Ipp32s bitrate,
                         Ipp32s stereo);

  protected:
    struct _MP3Enc  *state;
    Ipp32s  m_stereo;
    Ipp32s  m_freq;
    Ipp32s  m_layer;
    Ipp32s  m_bitrate;
    Ipp32s  m_br_mode;
    Ipp32s  m_stereo_mode;
    Ipp32s  m_ns_mode;
    Ipp64f  m_pts_prev;
    MemID  stateMemId;

    Status StatusMP3_2_UMC(MP3Status st);
    Status MemLock();
    Status MemUnlock();
  };

}      // namespace UMC

#endif /* __UMC_MP3_ENCODER_H__ */