hxvamain.cpp

来自「著名的 helix realplayer 基于手机 symbian 系统的 播放」· C++ 代码 · 共 130 行

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
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 * The contents of this file, and the files included with this file, are 
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 * Version 1.0 (the "RPSL") available at 
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 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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 * it created. 
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 * ***** END LICENSE BLOCK ***** */ 

// This module implements primitive functionality of Helix Video Arch
// required by the Decoder.

#include "hxvamain.h"

extern HXVA_FID_TYPES hxva_fid_type[HXVA_NUM_IMAGE_FORMATS + 1] = {
	TYPEENUM(HXVA_FID_UNDEFINED, HXVA_FID_TYPE_UNDEFINED)
          // Init
	TYPEENUM(HXVA_FID_RGB24, HXVA_FID_TYPE_RGB)
          // R 8 bits G  8 Bits B 8 Bits
	TYPEENUM(HXVA_FID_YUV12,HXVA_FID_TYPE_YUV)
		// I420
		// Y plane, U plane Quarter size V plane Quarter size
	TYPEENUM(HXVA_FID_IYUV,HXVA_FID_TYPE_YUV)
		// Same as I420
	TYPEENUM(HXVA_FID_YUY2,HXVA_FID_TYPE_YUV)
	TYPEENUM(HXVA_FID_H261,HXVA_FID_TYPE_DATA)
	TYPEENUM(HXVA_FID_H263,HXVA_FID_TYPE_DATA)
	TYPEENUM(HXVA_FID_H263PLUS,HXVA_FID_TYPE_DATA)
};

HXVA_Image_Format::HXVA_Image_Format()
{
    this->Clear();
}

void
HXVA_Image_Format::Clear()
{
    fid = HXVA_FID_UNDEFINED;
    dimensions.width = dimensions.height = 0;
    Complete();
    yuv_info.y_pitch = yuv_info.u_pitch = yuv_info.v_pitch = 0;
}

void
HXVA_Image_Format::Complete()
{
    // rectangle = dimensions;
	rectangle.location.x = rectangle.location.y = 0;
	rectangle.dimensions.height = dimensions.height;
	rectangle.dimensions.width = dimensions.width;

    if (HXVA_FID_Is_YUV(fid))
    {
		// these are defaults.. set actual if different.
        yuv_info.y_pitch = dimensions.width;
        yuv_info.u_pitch = yuv_info.v_pitch = dimensions.width / 2;
    }
}

HXVA_Image::HXVA_Image()
    :
    format()
{
    size = 0;
    sequence_number = 0;
    yuv_info.y_plane = yuv_info.u_plane = yuv_info.v_plane = NULL;
}

void
HXVA_Image::SetBasePointer(void *base)
{
    if (HXVA_FID_Is_YUV(format.fid))
    {
        if (base)
		{
			yuv_info.y_plane = (UINT8*)base;
			if (format.fid == HXVA_FID_YUV12 || format.fid == HXVA_FID_IYUV)
			{
				yuv_info.u_plane = yuv_info.y_plane +
					(format.yuv_info.y_pitch * format.rectangle.dimensions.height);
				yuv_info.v_plane = yuv_info.u_plane +
					(format.yuv_info.u_pitch * format.rectangle.dimensions.height / 2);
			}
		} 
		else 
		{
        
            yuv_info.y_plane = yuv_info.u_plane = yuv_info.v_plane = 0;
        }
    }
    else
        data = (UINT8*)base;
}

UINT8*
HXVA_Image::GetBasePointer(void) const
{
    if (HXVA_FID_Is_YUV(format.fid))
        return yuv_info.y_plane;

    return data;
}