开发笔记:ffmpeg脚本

bat: dir /on/b >0.txt

当前文件+子文件bat dir/s/on/b >0.txt

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

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"

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 <"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 < //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 <", 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(i, j)[0] < //cout <<(int)colorImage.at(i, j)[1] < //cout <<(int)colorImage.at(i, j)[2] < //操作每一个像素值
//蓝色通道
colorImage.at(i, j)[0] = 20;
//绿色通道
colorImage.at(i, j)[1] = 20;
//红色通道
colorImage.at(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;
}

ffmpeg -i input.avi output.mp4