YUV文件格式
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//使用 YUV Player Deluxe 工具播放
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(){
//读取文件test_yuv420p_320x180.yuv
FILE* fp_yuv=fopen("test_yuv420p_320x180.yuv","rb");
//写入文件frame.yuv
FILE* fp_frame=fopen("frame_320x180_out.yuv","wb");
//开辟内存读取test_yuv420p_320x180.yuv文件的第一帧的亮度数据(Y)
char* buffer_y=(char*)malloc(sizeof(char)*320*180);
char* buffer_u=(char*)malloc(sizeof(char)*320*180/4);
char* buffer_v=(char*)malloc(sizeof(char)*320*180/4);
//读取文件test_yuv420p_320x180.yuv
FILE* fp_yuv=fopen("test_yuv420p_320x180.yuv","rb");
//写入文件frame.yuv
FILE* fp_frame=fopen("frame_320x180_out.yuv","wb");
//开辟内存读取test_yuv420p_320x180.yuv文件的第一帧的亮度数据(Y)
char* buffer_y=(char*)malloc(sizeof(char)*320*180);
char* buffer_u=(char*)malloc(sizeof(char)*320*180/4);
char* buffer_v=(char*)malloc(sizeof(char)*320*180/4);
//读取函数,将test_yuv420p_320x180.yuv的第一帧存入buff指向的内存
for(int i=0;i<30;i++)
{
fread(buffer_y,320*180,1,fp_yuv);
fread(buffer_u,320*180/4,1,fp_yuv);
fread(buffer_v,320*180/4,1,fp_yuv);
for(int i=0;i<30;i++)
{
fread(buffer_y,320*180,1,fp_yuv);
fread(buffer_u,320*180/4,1,fp_yuv);
fread(buffer_v,320*180/4,1,fp_yuv);
//for(int i=0;i<320*180/4;i++){
// buffer_u[i]=128;
// buffer_v[i]=128;
//}
// buffer_u[i]=128;
// buffer_v[i]=128;
//}
memset(buffer_u,128,320*180/4);
memset(buffer_v,128,320*180/4);
memset(buffer_v,128,320*180/4);
fwrite(buffer_y,320*180,1,fp_frame);
fwrite(buffer_u,320*180/4,1,fp_frame);
fwrite(buffer_v,320*180/4,1,fp_frame);
}
//fread(buff,320*180,1,fp_yuv);
//将buff指向的内存写入frame.yuv
fwrite(buffer_u,320*180/4,1,fp_frame);
fwrite(buffer_v,320*180/4,1,fp_frame);
}
//fread(buff,320*180,1,fp_yuv);
//将buff指向的内存写入frame.yuv
//fprintf演示
//FILE* fp_demo=fopen("demo.txt","wb");
//char hello[20]="GuangDianGong";
//fprintf(fp_demo,"Hello World,%s",hello);
//fclose(fp_demo);
//FILE* fp_demo=fopen("demo.txt","wb");
//char hello[20]="GuangDianGong";
//fprintf(fp_demo,"Hello World,%s",hello);
//fclose(fp_demo);
free(buffer_y);
free(buffer_u);
free(buffer_v);
fclose(fp_yuv);
fclose(fp_frame);
free(buffer_u);
free(buffer_v);
fclose(fp_yuv);
fclose(fp_frame);
return 0;
}
}
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(){
//读取文件test_yuv420p_320x180.yuv
FILE* fp_yuv=fopen("test_yuv420p_320x180.yuv","rb");
//写入文件frame.yuv
FILE* fp_frame=fopen("frame_320x180_out.yuv","wb");
//开辟内存读取test_yuv420p_320x180.yuv文件的第一帧的亮度数据(Y)
char* buffer_y=(char*)malloc(sizeof(char)*320*180);
char* buffer_u=(char*)malloc(sizeof(char)*320*180/4);
char* buffer_v=(char*)malloc(sizeof(char)*320*180/4);
//读取文件test_yuv420p_320x180.yuv
FILE* fp_yuv=fopen("test_yuv420p_320x180.yuv","rb");
//写入文件frame.yuv
FILE* fp_frame=fopen("frame_320x180_out.yuv","wb");
//开辟内存读取test_yuv420p_320x180.yuv文件的第一帧的亮度数据(Y)
char* buffer_y=(char*)malloc(sizeof(char)*320*180);
char* buffer_u=(char*)malloc(sizeof(char)*320*180/4);
char* buffer_v=(char*)malloc(sizeof(char)*320*180/4);
//读取函数,将test_yuv420p_320x180.yuv的第一帧存入buff指向的内存
for(int i=0;i<30;i++)
{
fread(buffer_y,320*180,1,fp_yuv);
fread(buffer_u,320*180/4,1,fp_yuv);
fread(buffer_v,320*180/4,1,fp_yuv);
for(int i=0;i<30;i++)
{
fread(buffer_y,320*180,1,fp_yuv);
fread(buffer_u,320*180/4,1,fp_yuv);
fread(buffer_v,320*180/4,1,fp_yuv);
//for(int i=0;i<320*180/4;i++){
// buffer_u[i]=128;
// buffer_v[i]=128;
//}
// buffer_u[i]=128;
// buffer_v[i]=128;
//}
memset(buffer_u,128,320*180/4);
memset(buffer_v,128,320*180/4);
memset(buffer_v,128,320*180/4);
fwrite(buffer_y,320*180,1,fp_frame);
fwrite(buffer_u,320*180/4,1,fp_frame);
fwrite(buffer_v,320*180/4,1,fp_frame);
}
//fread(buff,320*180,1,fp_yuv);
//将buff指向的内存写入frame.yuv
fwrite(buffer_u,320*180/4,1,fp_frame);
fwrite(buffer_v,320*180/4,1,fp_frame);
}
//fread(buff,320*180,1,fp_yuv);
//将buff指向的内存写入frame.yuv
//fprintf演示
//FILE* fp_demo=fopen("demo.txt","wb");
//char hello[20]="GuangDianGong";
//fprintf(fp_demo,"Hello World,%s",hello);
//fclose(fp_demo);
//FILE* fp_demo=fopen("demo.txt","wb");
//char hello[20]="GuangDianGong";
//fprintf(fp_demo,"Hello World,%s",hello);
//fclose(fp_demo);
free(buffer_y);
free(buffer_u);
free(buffer_v);
fclose(fp_yuv);
fclose(fp_frame);
free(buffer_u);
free(buffer_v);
fclose(fp_yuv);
fclose(fp_frame);
return 0;
}
}
编译环境与code下载 : http://download.csdn.net/detail/lbaihao/9599402
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