basic_audio_render.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*//////////////////////////////////////////////////////////////////////////////
//
//                  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) 2003-2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __BASIC_AUDIO_RENDER_H__
#define __BASIC_AUDIO_RENDER_H__

#include "umc_audio_render.h"
#include "umc_cyclic_buffer.h"
#include "umc_thread.h"
#include "umc_event.h"

namespace UMC
{
    class BasicAudioRender: public AudioRender
    {
        DYNAMIC_CAST_DECL(BasicAudioRender, AudioRender)
    public:
        BasicAudioRender();
        virtual ~BasicAudioRender();

        virtual Status Init(MediaReceiverParams* pInit);
        virtual Status LockInputBuffer(MediaData *in);
        virtual Status UnLockInputBuffer(MediaData *in, Status StreamStatus = UMC_OK);
        virtual Status Stop();
        virtual Status Close();
        virtual Status Reset();

        virtual double GetTime();
        virtual double GetDelay();

        void ThreadProc();

        virtual Status SetParams(MediaReceiverParams *params);

    protected:
        LinearBuffer m_DataBuffer;
        virtual double GetTimeTick() = 0;
        virtual Status GetTimeTick(double pts);

        double    m_dfNorm;
        vm_tick m_tStartTime;
        vm_tick m_tStopTime;
        vm_tick m_tFreq;
        Thread  m_Thread;
        volatile bool m_bStop;

        UMC::Event      m_eventSyncPoint;
        UMC::Event      m_eventSyncPoint1;

        bool            m_bPrepareForReposition;
        int             m_wInitedChannels;
        int             m_dwInitedFrequency;
        double          m_dDynamicChannelPTS;
        int             m_wDynamicChannels;

    }; // class BasicAudioRender
} // namespace UMC

#endif // __BASIC_AUDIO_RENDER_H__