ffmpeg脚本

1、当前目录生成txt

bat:   dir /on/b >0.txt当前文件+子文件bat    dir/s/on/b >0.txt

2、批量文件夹下图片生成视频

for /f "delims=[" %i in (input.txt) do D:\\Software\\ffmpeg-20191026-1054752-win64-static\\bin\\ffmpeg.exe -f image2 -i F:\\cqVideo\\19-10-24\\19-10-24_16\\%i\\%d.jpg -vcodec libx264 -r 25 -b 700000 F:\\%i.h264

3、批量视频格式转换

for %a in ("F:\\cqVideo\\19-10-26\\19-10-26_00\\*.h264") do D:\\software\\ffmpeg-20191028-68f623d-win64-static\\bin\\ffmpeg.exe -i "%a" -threads 2 -vcodec libx264 -preset slow -crf 20 -y "F:\\00result\\%~na.mp4"

4、视频保存为图片，新建文件夹和子文件夹，子文件夹图片用于制作视频

int main()
{
    std::ifstream fin("F:\\cqVideo\\19-10-26MP4\\0.txt");//打开原始样本图片文件列表  
    string imgName;
    Mat colorImage;

    int videoCnt = 0;
    while (getline(fin, imgName)) //一行一行读取文件列表  
    {
        videoCnt++;
        string videoPath = imgName;
        VideoCapture capture(videoPath);//读入视频

        if (!capture.isOpened())//判断是否打开视频文件  
        {
            cout << videoPath << "video not open..." << endl;
            continue;
        }
        string dirName = videoPath.substr(videoPath.find_last_of("\\") + 1);
        string saveImageName = dirName.substr(0, dirName.find_first_of("."));//图片文件夹，需要新建
        string hourDirName = videoPath.substr(26, 11);//小时文件夹，需要新建
                                                      //cout << saveDirName << endl;

                                                      //保存图片
        string hourDir = "F:\\cqVideo\\19-10-25\\" + hourDirName + "\\";
        if (_mkdir(hourDir.c_str()) == -1)
        {
            _mkdir(hourDir.c_str());   // 返回 0 表示创建成功，-1 表示失败
        }

        string imageDir = hourDir + saveImageName + "\\";
        if (_mkdir(imageDir.c_str()) == -1)
        {
            _mkdir(imageDir.c_str());   // 返回 0 表示创建成功，-1 表示失败
        }

        int count = 0;
        while (true)
        {
            count++;

            capture >> colorImage;//读入图片
            if (colorImage.empty())
            {
                cout << "no image..." << endl;
                break;
            }

            if (colorImage.channels() != 3)
            {
                cout << "not three..." << endl;
                cvtColor(colorImage, colorImage, CV_GRAY2BGR);
            }
            if (colorImage.rows != 640)
            {
                cout << videoPath << ", row error" << endl;
            }
            
            Rect roi(297, 623, 7, 8);
            //rectangle(colorImage, roi , Scalar(0, 255, 255),1);
            for (int i = 623; i < 632; i++)
            {
                for (int j = 297; j < 305; j++)
                {
                    //cout << (int)colorImage.at<Vec3b>(i, j)[0] << endl;
                    //cout << (int)colorImage.at<Vec3b>(i, j)[1] << endl;
                    //cout << (int)colorImage.at<Vec3b>(i, j)[2] << endl;
                    //操作每一个像素值
                    //蓝色通道
                    colorImage.at<Vec3b>(i, j)[0] = 20;
                    //绿色通道
                    colorImage.at<Vec3b>(i, j)[1] = 20;
                    //红色通道
                    colorImage.at<Vec3b>(i, j)[2] = 20;
                }
            }
            putText(colorImage, "5", cv::Point(297, 630), CV_FONT_HERSHEY_COMPLEX_SMALL, 0.5, Scalar(255, 255, 255), 1);

            string name = imageDir + to_string(count) + ".jpg";
            imwrite(name, colorImage);


            //imshow("colorImage", colorImage);
            //waitKey(0);
        }
    }

    return 0;
}

5、单个视频格式转换

ffmpeg -i input.avi output.mp4