oss_dev.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.
//
*/

//
//    This file contains class covering OSS Linux devices interface
//

#ifndef __OSS_DEVICE_H__
#define __OSS_DEVICE_H__
#ifdef UMC_ENABLE_OSS_AUDIO_RENDER

#include "linux_dev.h"

namespace UMC
{
    class OSSDev
    {
    public:
        OSSDev():
          m_uiBytesPlayed(0),
          m_uiBitsPerSample(0),
          m_uiNumOfChannels(0),
          m_uiFreq(0)
        {}

        virtual ~OSSDev(){}

        Status Init(const vm_var32 uiBitsPerSample,
                    const vm_var32 uiNumOfChannels,
                    const vm_var32 uiFreq);

        Status RenderData(vm_byte* pbData, vm_var32 uiDataSize);
        Status Post();
        Status Reset();
        Status GetBytesPlayed(vm_var32& ruiBytesPlayed);

        Status SetBitsPerSample(const vm_var32 uiBitsPerSample);
        Status SetNumOfChannels(const vm_var32 uiNumOfChannels);
        Status SetFreq(const vm_var32 uiFreq);

    protected:
        LinuxDev m_Device;
        vm_var32 m_uiBytesPlayed;
        vm_var32 m_uiBitsPerSample;
        vm_var32 m_uiNumOfChannels;
        vm_var32 m_uiFreq;

    };
};  //  namespace UMC
#endif // UMC_ENABLE_OSS_AUDIO_RENDER
#endif // __OSS_DEVICE_H__