T113-s3获取ov5640下枚举格式失败

[shz18877605430]

各位大佬救救急！！！

T113-s3获取ov5640下枚举格式失败，再if(0 != ioctl(fd,VIDIOC_ENUM_FMT,&fmtdesc))处直接break掉了。

说明一下：ov5640正常使用没有问题，能拍照，已测试过的。

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <linux/types.h>
#include <linux/videodev2.h>

/* ./app_ov5640 </dev/video0>*/
int main(int argc,char **argv)
{
    int fd;
    struct v4l2_fmtdesc fmtdesc;
    struct v4l2_frmsizeenum fsenum;
    int fmt_index = 0;
    int frame_index = 0;
    
    if(argc != 2){
        printf("Usage %s </dev/videoX>,print format detail for video device\n",argv[0]);
        return -1;
    }

    /* open */
    fd = open(argv[1],O_RDWR);
    if(fd < 0){
        printf("can not open %s\n",argv[1]);
        return -1;
    }

    while(1)
    {
        /* 枚举格式 */
        fmtdesc.index = fmt_index;  //比如从0开始
        fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;    //指定type为"捕获"
        
        if(0 != ioctl(fd,VIDIOC_ENUM_FMT,&fmtdesc))
            break;

        frame_index = 0;
        while(1)
        {
            /* 枚举这种个格式所支持的帧大小*/
            memset(&fsenum,0,sizeof(struct v4l2_frmsizeenum));
            fsenum.pixel_format = fmtdesc.pixelformat;
            fsenum.index = frame_index;

            if(ioctl(fd,VIDIOC_ENUM_FRAMESIZES,&fsenum) == 0){
                printf("format %s,%d, framesize %d: %d x %d\n",fmtdesc.description,fmtdesc.pixelformat,frame_index,fsenum.discrete.width,fsenum.discrete.height);
            }else{
                break;
            }
            frame_index++;
        }
        fmt_index++;
    }

    return 0;
}

[honghu886]

@shz18877605430 ov5640 的类型不对fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
而是多视频捕获