/// <summary>
/// Converts an image sequence to a video.
/// </summary>
/// <param name="output">Output video file.</param>
/// <param name="frameRate">FPS</param>
/// <param name="images">Image sequence collection</param>
/// <returns>Output video information.</returns>
public VideoInfo JoinImageSequence(FileInfo output, double frameRate = 30, params ImageInfo[] images)
{
var temporaryImageFiles = images.Select((image, index) =>
{
FFMpegHelper.ConversionSizeExceptionCheck(Image.FromFile(image.FullName));
var destinationPath = image.FullName.Replace(image.Name, $"{index.ToString().PadLeft(9, '0')}{image.Extension}");
File.Copy(image.FullName, destinationPath);
return(destinationPath);
}).ToList();
var firstImage = images.First();
var args = ArgumentsStringifier.FrameRate(frameRate) +
ArgumentsStringifier.Size(new Size(firstImage.Width, firstImage.Height)) +
ArgumentsStringifier.StartNumber(0) +
ArgumentsStringifier.Input($"{firstImage.Directory}\\%09d.png") +
ArgumentsStringifier.FrameOutputCount(images.Length) +
ArgumentsStringifier.Video(VideoCodec.LibX264) +
ArgumentsStringifier.Output(output);
try
{
if (!RunProcess(args, output))
{
throw new FFMpegException(FFMpegExceptionType.Operation, "Could not join the provided image sequence.");
}
return(new VideoInfo(output));
}
finally
{
Cleanup(temporaryImageFiles);
}
}
