110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
#include "app_config.h"
|
|
#include "system/includes.h"
|
|
#include "device/device.h"
|
|
#include "yuv_to_rgb.h"
|
|
#include "fs/fs.h"
|
|
|
|
static void yuv2rgb_test(void)
|
|
{
|
|
FILE *fd = NULL;
|
|
int len;
|
|
int w = 320;//YUV420数据分辨率宽
|
|
int h = 240;//YUV420数据分辨率高
|
|
void *yuv = NULL;
|
|
void *rgb = NULL;
|
|
int ret;
|
|
|
|
extern int storage_device_ready(void);
|
|
while (!storage_device_ready()) {//等待sd文件系统挂载完成
|
|
os_time_dly(2);
|
|
}
|
|
|
|
//1.从SD卡打开yuv文件数据到内存中
|
|
fd = fopen(CONFIG_ROOT_PATH"test.yuv", "rb");
|
|
if (fd == NULL) {
|
|
printf("no file\n");
|
|
goto exit;
|
|
}
|
|
len = flen(fd);//读取YUV数据长度
|
|
yuv = malloc(len);
|
|
if (!yuv) {
|
|
printf("yuv buf malloc err \n");
|
|
goto exit;
|
|
}
|
|
if (fread(yuv, 1, len, fd) != len) {//读取YUV数据
|
|
printf("read file len err \n");
|
|
goto exit;
|
|
}
|
|
fclose(fd);
|
|
fd = NULL;
|
|
|
|
//2.申请缩放的内存
|
|
rgb = malloc(w * h * 3);//RGB24数据量: 分辨率*3
|
|
if (!rgb) {
|
|
printf("rgb buf malloc err \n");
|
|
goto exit;
|
|
}
|
|
|
|
//3.YUV转RGB24
|
|
yuv420p_quto_rgb24(yuv, rgb, w, h);
|
|
fd = fopen(CONFIG_ROOT_PATH"test_rgb24.rgb", "w+");//创建文件
|
|
if (fd) {
|
|
fwrite(rgb, 1, w * h * 3, fd);//rgb24 : w * h * 2
|
|
fclose(fd);
|
|
fd = NULL;
|
|
printf("YUV2RGB24 write file ok\n");
|
|
}
|
|
|
|
//4.YUV转RGB565
|
|
yuv420p_quto_rgb565(yuv, rgb, w, h, 1);//转RGB565-BE大端模式
|
|
fd = fopen(CONFIG_ROOT_PATH"test_rgb565.rgb", "w+");//创建文件
|
|
if (fd) {
|
|
fwrite(rgb, 1, w * h * 2, fd);//rgb565 : w * h * 2
|
|
fclose(fd);
|
|
fd = NULL;
|
|
printf("YUV2RGB565 write file ok\n");
|
|
}
|
|
|
|
//5.RGB565转YUV
|
|
fd = fopen(CONFIG_ROOT_PATH"test_rgb565.rgb", "rb");//读取文件
|
|
if (fd) {
|
|
fread(rgb, 1, w * h * 2, fd);//rgb565 : w * h * 2
|
|
fclose(fd);
|
|
fd = NULL;
|
|
|
|
//RGB565转YUV
|
|
rgb565_to_yuv420p(rgb, yuv, w, h, 1);//RGB565-BE大端模式转YUV420P
|
|
|
|
fd = fopen(CONFIG_ROOT_PATH"test_rgb2yuv.yuv", "w+");//创建文件
|
|
if (fd) {
|
|
fwrite(yuv, 1, w * h * 3 / 2, fd);//yuv420p : w * h * 3 / 2
|
|
fclose(fd);
|
|
fd = NULL;
|
|
printf("RGB2YUV write file ok\n");
|
|
}
|
|
}
|
|
|
|
exit:
|
|
if (rgb) {
|
|
free(rgb);
|
|
rgb = NULL;
|
|
}
|
|
if (yuv) {
|
|
free(yuv);
|
|
yuv = NULL;
|
|
}
|
|
if (fd) {
|
|
fclose(fd);
|
|
fd = NULL;
|
|
}
|
|
while (1) {//等待被杀（注意：不能自杀）
|
|
os_time_dly(10);
|
|
}
|
|
}
|
|
static int c_main(void)
|
|
{
|
|
os_task_create(yuv2rgb_test, NULL, 12, 1000, 0, "yuv2rgb_test");
|
|
return 0;
|
|
}
|
|
late_initcall(c_main);
|