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。