编写一个基于智芯微猎鹰的API接口的摄像头拍照程序

请确认智芯微猎鹰的API接口已经安装并配置完成。以下是Python代码示例：

import requests

# 设置照片保存路径
photo_path = "photo.jpg"

# 发送拍照命令
response = requests.get("http://127.0.0.1:8080/camera?action=snapshot")

# 保存照片
with open(photo_path, "wb") as f:
    f.write(response.content)

print("照片已保存到：", photo_path)

在上述代码中，通过调用requests库发送HTTP GET请求，向智芯微猎鹰的API接口发送拍照命令并获取照片数据。然后将照片数据保存到指定路径下的文件，最后输出保存路径。

相关问题

编写一个基于智芯微猎鹰的c语言API接口的摄像头拍照程序

以下是一个基于智芯微猎鹰的C语言API接口的摄像头拍照程序的示例：

#include "hi_comm_sys.h"
#include "mpi_sys.h"
#include "mpi_vb.h"
#include "mpi_vi.h"
#include "mpi_isp.h"
#include "mpi_ae.h"
#include "mpi_awb.h"
#include "mpi_hdr.h"
#include "mpi_venc.h"
#include "mpi_region.h"
#include "hi_math.h"
#include "hi_type.h"

#define CAPTURE_FILE_PATH "/mnt/sdcard/capture.jpg"

int main(int argc, char *argv[])
{
    HI_S32 s32Ret = HI_SUCCESS;
    VB_CONFIG_S stVbConf = {0};
    VI_DEV ViDev = 0;
    VI_PIPE ViPipe = 0;
    VI_CHN ViChn = 0;
    ISP_PUB_ATTR_S stIspPubAttr = {0};
    ISP_EXPOSURE_ATTR_S stExpAttr = {0};
    ISP_AWB_ATTR_S stAwbAttr = {0};
    ISP_HDR_ATTR_S stHdrAttr = {0};
    VENC_CHN VencChn = 0;
    VENC_CHN_ATTR_S stVencChnAttr = {0};
    VIDEO_FRAME_INFO_S stFrame = {0};
    REGION_INFO_S stRegionInfo = {0};
    HI_U32 u32BlkSize = 0;
    HI_U32 u32BlkCnt = 0;
    HI_CHAR *pchYUVBuffer = HI_NULL;
    HI_CHAR *pchJpegBuffer = HI_NULL;

    /* 初始化视频缓存 */
    memset(&stVbConf, 0, sizeof(VB_CONFIG_S));
    stVbConf.u32MaxPoolCnt = 128;
    stVbConf.astCommPool[0].u32BlkSize = 1920 * 1080 * 2;
    stVbConf.astCommPool[0].u32BlkCnt = 4;

    /* 初始化视频输入设备 */
    s32Ret = HI_MPI_SYS_Init();
    s32Ret |= HI_MPI_VB_SetConfig(&stVbConf);
    s32Ret |= HI_MPI_VB_Init();
    s32Ret |= HI_MPI_VI_SetDevAttr(ViDev, &stIspPubAttr);
    s32Ret |= HI_MPI_VI_EnableDev(ViDev);
    s32Ret |= HI_MPI_VI_SetChnAttr(ViPipe, ViChn, &stIspPubAttr);
    s32Ret |= HI_MPI_VI_EnableChn(ViPipe, ViChn);

    /* 初始化ISP模块 */
    s32Ret |= HI_MPI_ISP_SetPubAttr(ViPipe, &stIspPubAttr);
    s32Ret |= HI_MPI_ISP_Init(ViPipe);

    /* 初始化自动曝光模块 */
    s32Ret |= HI_MPI_AE_Register(ViPipe, &stExpAttr);
    s32Ret |= HI_MPI_AE_Init(ViPipe);

    /* 初始化自动白平衡模块 */
    s32Ret |= HI_MPI_AWB_Register(ViPipe, &stAwbAttr);
    s32Ret |= HI_MPI_AWB_Init(ViPipe);

    /* 初始化HDR模块 */
    s32Ret |= HI_MPI_HDR_Register(ViPipe, &stHdrAttr);
    s32Ret |= HI_MPI_HDR_Init(ViPipe);

    /* 初始化视频编码器 */
    s32Ret |= HI_MPI_VENC_CreateChn(VencChn, &stVencChnAttr);
    s32Ret |= HI_MPI_VENC_RegisterChn(VencChn, &stVencChnAttr);
    s32Ret |= HI_MPI_VENC_StartRecvPic(VencChn);

    /* 分配视频缓存 */
    s32Ret |= HI_MPI_VI_GetFrame(ViPipe, ViChn, &stFrame, 0);

    /* 将YUV格式转换成JPEG格式 */
    s32Ret |= HI_MPI_VENC_SendFrame(VencChn, &stFrame, 1000);

    /* 从编码器接收JPEG格式视频帧 */
    s32Ret |= HI_MPI_VENC_GetStream(VencChn, &stFrame, 1000);

    /* 将JPEG格式视频帧写入文件 */
    pchJpegBuffer = (HI_CHAR *)stFrame.pVirAddr[0];
    FILE *pFile = fopen(CAPTURE_FILE_PATH, "wb");
    fwrite(pchJpegBuffer, 1, stFrame.u32Len, pFile);
    fclose(pFile);

    /* 释放视频缓存 */
    s32Ret |= HI_MPI_VI_ReleaseFrame(ViPipe, ViChn, &stFrame);

    /* 释放视频编码器 */
    s32Ret |= HI_MPI_VENC_StopRecvPic(VencChn);
    s32Ret |= HI_MPI_VENC_UnRegisterChn(VencChn);
    s32Ret |= HI_MPI_VENC_DestroyChn(VencChn);

    /* 释放HDR模块 */
    s32Ret |= HI_MPI_HDR_Exit(ViPipe);
    s32Ret |= HI_MPI_HDR_UnRegister(ViPipe);

    /* 释放自动白平衡模块 */
    s32Ret |= HI_MPI_AWB_Exit(ViPipe);
    s32Ret |= HI_MPI_AWB_UnRegister(ViPipe);

    /* 释放自动曝光模块 */
    s32Ret |= HI_MPI_AE_Exit(ViPipe);
    s32Ret |= HI_MPI_AE_UnRegister(ViPipe);

    /* 释放ISP模块 */
    s32Ret |= HI_MPI_ISP_Exit(ViPipe);

    /* 释放视频输入设备 */
    s32Ret |= HI_MPI_VI_DisableChn(ViPipe, ViChn);
    s32Ret |= HI_MPI_VI_DisableDev(ViDev);
    s32Ret |= HI_MPI_VB_Exit();
    s32Ret |= HI_MPI_SYS_Exit();

    if (HI_SUCCESS != s32Ret)
    {
        printf("Failed to capture image!\n");
        return -1;
    }

    printf("Image captured successfully!\n");
    return 0;
}

需要注意的是，该示例程序只是一个框架，具体的参数和配置需要根据实际情况进行调整和修改。

编写一个智芯猎鹰基于API接口的c语言摄像头拍照程序

以下是基于智芯猎鹰的API接口，使用C语言编写的摄像头拍照程序：

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <sys/ioctl.h>
#include <linux/videodev2.h>

#define CAMERA_DEVICE "/dev/video0"
#define IMAGE_FILE "image.jpg"

int main(int argc, char *argv[])
{
    int fd;
    struct v4l2_capability cap;
    struct v4l2_format fmt;
    struct v4l2_requestbuffers req;
    struct v4l2_buffer buf;
    void *buffer_start;
    unsigned int i;
    time_t timer;
    struct tm* tm_info;
    char buffer[80];

    // 打开摄像头设备
    fd = open(CAMERA_DEVICE, O_RDWR, 0);
    if (fd < 0) {
        perror("Cannot open camera device");
        return 1;
    }

    // 查询设备属性
    if (ioctl(fd, VIDIOC_QUERYCAP, &cap) < 0) {
        perror("Cannot get camera capabilities");
        return 1;
    }

    // 设置视频格式
    memset(&fmt, 0, sizeof(fmt));
    fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
    fmt.fmt.pix.width = 640;
    fmt.fmt.pix.height = 480;
    fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
    fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
    if (ioctl(fd, VIDIOC_S_FMT, &fmt) < 0) {
        perror("Cannot set video format");
        return 1;
    }

    // 请求缓冲区
    memset(&req, 0, sizeof(req));
    req.count = 1;
    req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
    req.memory = V4L2_MEMORY_MMAP;
    if (ioctl(fd, VIDIOC_REQBUFS, &req) < 0) {
        perror("Cannot request buffers");
        return 1;
    }

    // 映射缓冲区
    buffer_start = malloc(fmt.fmt.pix.sizeimage);
    if (!buffer_start) {
        perror("Cannot allocate memory for buffer");
        return 1;
    }
    memset(buffer_start, 0, fmt.fmt.pix.sizeimage);

    buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
    buf.memory = V4L2_MEMORY_MMAP;
    buf.index = 0;
    if (ioctl(fd, VIDIOC_QUERYBUF, &buf) < 0) {
        perror("Cannot query buffer");
        return 1;
    }

    if (ioctl(fd, VIDIOC_STREAMON, &buf.type) < 0) {
        perror("Cannot start streaming");
        return 1;
    }

    // 捕获图像数据
    memset(buffer_start, 0, fmt.fmt.pix.sizeimage);
    buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
    buf.memory = V4L2_MEMORY_MMAP;
    buf.index = 0;
    if (ioctl(fd, VIDIOC_QBUF, &buf) < 0) {
        perror("Cannot queue buffer");
        return 1;
    }

    if (ioctl(fd, VIDIOC_DQBUF, &buf) < 0) {
        perror("Cannot dequeue buffer");
        return 1;
    }

    // 保存图像数据
    time(&timer);
    tm_info = localtime(&timer);
    strftime(buffer, 80, "%Y%m%d%H%M%S.jpg", tm_info);
    FILE *fp = fopen(IMAGE_FILE, "wb");
    if (!fp) {
        perror("Cannot open image file");
        return 1;
    }
    fwrite(buffer_start, buf.bytesused, 1, fp);
    fclose(fp);

    if (ioctl(fd, VIDIOC_STREAMOFF, &buf.type) < 0) {
        perror("Cannot stop streaming");
        return 1;
    }

    free(buffer_start);
    close(fd);

    return 0;
}

运行程序后，将会在当前目录下生成名为 `image.jpg` 的图片文件，其中的内容是从摄像头捕获的图像数据。