yuv转bmp

#ifdef   _INTERFACE_H

#error   _INTERFACE_H has be  exsisted

#else

#define  _INTERFACE_H



#include "stdafx.h"//类型定义在这个文件中

#include "stdlib.h"

#include "windows.h"

void SaveYUV(AVFrame *picture, int width, int height,int iFrame) 

#pragma once



#ifndef _WINGDI_

#define   _WINGDI_



typedef struct tagBITMAPFILEHEADER 

{        

	WORD    bfType;     

	DWORD   bfSize;            

	WORD    bfReserved1;            

	WORD    bfReserved2;            

	DWORD   bfOffBits;  

} BITMAPFILEHEADER, FAR *LPBITMAPFILEHEADER, *PBITMAPFILEHEADER;   





typedef struct tagBITMAPINFOHEADER

{ 

		DWORD      biSize;

		LONG       biWidth;

		LONG       biHeight;

		WORD       biPlanes; 

		WORD       biBitCount;

		DWORD      biCompression;

		DWORD      biSizeImage; 

		LONG       biXPelsPerMeter;

		LONG       biYPelsPerMeter;

		DWORD      biClrUsed;

		DWORD      biClrImportant;   

} BITMAPINFOHEADER, FAR *LPBITMAPINFOHEADER, *PBITMAPINFOHEADER;  



#endif

#endif





void SaveYUVS(uint8_t* yuv, int width, int height, int iFrame) 

{

	FILE *pFile;

	char szFilename[32];

	int y;

	sprintf(szFilename, ".\\yuv\\rotate%d_%d_%d.yuv", iFrame, width, height);  	pFile=fopen(szFilename, "ab+");

	if(pFile == NULL)

	   return;



	fwrite(yuv,sizeof(char),width * height*3/2,pFile);// 	

	fflush(pFile);

	fclose(pFile);

}





#if 1

picture->data[0] += picture->linesize[0] * (pAVCodecCtx->height - 1);    

picture->linesize[0] *= -1;    

picture->data[1] += picture->linesize[1] * (pAVCodecCtx->height / 2 - 1);    

picture->linesize[1] *= -1;    

picture->data[2] += picture->linesize[2] * (pAVCodecCtx->height / 2 - 1);    

picture->linesize[2] *= -1;    

//转换图像格式，将解压出来的YUV420P的图像转换为BRG24的图像

int PictureSize=avpicture_get_size (PIX_FMT_BGR24, pAVCodecCtx->width, pAVCodecCtx->height); 

uint8_t* buf = (uint8_t*)av_malloc(PictureSize);   

avpicture_fill ( (AVPicture *)pFrameRGB, buf, PIX_FMT_BGR24, pAVCodecCtx->width, pAVCodecCtx->height);   

SwsContext* pSwsCtx = sws_getContext (pAVCodecCtx->width,pAVCodecCtx->height,pAVCodecCtx->pix_fmt,pAVCodecCtx->width,pAVCodecCtx->height,PIX_FMT_BGR24,SWS_BICUBIC,NULL, NULL, NULL);  

sws_scale (pSwsCtx,picture->data,picture->linesize,0,pAVCodecCtx->height,pFrameRGB->data,pFrameRGB->linesize);    

SaveAsBMP (pFrameRGB,pAVCodecCtx->width,pAVCodecCtx->height, count, 24);    

av_free(buf);

sws_freeContext(pSwsCtx);

#endif