directsound_render.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) 2003-2007 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __DIRECTSOUND_RENDER_H__
#define __DIRECTSOUND_RENDER_H__

#include "umc_defs.h"

#ifdef UMC_ENABLE_DSOUND_AUDIO_RENDER

#include <dplay.h>
#include <dsound.h>
#include "umc_structures.h"
#include "basic_audio_render.h"
#include "pts_buf.h"
#include "dsound_buf.h"

namespace UMC
{
    class DSoundAudioRender:public BasicAudioRender
    {
    public:
        DSoundAudioRender();
        virtual ~DSoundAudioRender(void);

        virtual Status  Init(MediaReceiverParams* pInit);
        virtual Status  SendFrame(MediaData* in);
        virtual Status  Pause(bool);

        // Render manipulating
        virtual Ipp32f  SetVolume(Ipp32f volume);   /* 0-silence 1-max, return previous volume */
        virtual Ipp32f  GetVolume();

        virtual Status  Close (void);
        virtual Status  Reset (void);

        virtual Status  SetParams(MediaReceiverParams *params,
                                  Ipp32u  trickModes = UMC_TRICK_MODES_NO);
    protected:
        static const Ipp32u m_cuiNumOfFrames;
        virtual Status  DrainBuffer();

        HANDLE          m_hTimer;
        BufPTSArray     m_AudioPtsArray;
        DSBuffer        m_DSBuffer;
        Ipp32u          m_dwSampleAlign;

        virtual Ipp64f  GetTimeTick(void);
    };  //class DirectSoundRender

};  //  namespace UMC

#endif //  __DIRECTSOUND_RENDER_H__

#endif