fb_video_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 ___FRAMEBUFFER_VIDEO_RENDER_H__
#define ___FRAMEBUFFER_VIDEO_RENDER_H__

#include "umc_defs.h"

#if defined(UMC_ENABLE_FB_VIDEO_RENDER)

#include <linux/fb.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "mobile_video_render.h"
#include "umc_semaphore.h"

namespace UMC
{

class FBVideoRender : public MobileVideoRender
{
public:
    // Default constructor
    FBVideoRender();
    // Destructor
    virtual ~FBVideoRender();

    // Initialize the render, return false if failed, call Close anyway
    virtual Status Init(MediaReceiverParams* pInit);

    // Show the last rendered frame
    virtual Status ShowLastFrame();

    // Terminate the render
    virtual Status Close();

    // Lock input buffer
    virtual Status LockInputBuffer(MediaData *in);

    // Unlock input buffer
    virtual Status UnLockInputBuffer(MediaData *pInData,
                                     Status StreamStatus = UMC_OK);
protected:
    virtual int LockSurface( unsigned char** vidmem ){ return 0; }
    virtual int UnlockSurface( unsigned char** vidmem ){ return 0; }

    struct fb_var_screeninfo    m_sVarInfo;
    struct fb_fix_screeninfo    m_sFixInfo;
    int                         m_iDevHandle;
    vm_byte*                    m_pbMap;
    vm_var32                    m_uiMapSize;
};

} // namespace UMC

#endif // defined(UMC_ENABLE_FB_VIDEO_RENDER)

#endif // ___FRAMEBUFFER_VIDEO_RENDER_H__