public string Join(params string[] inputs)
{
var tempVideos = AdjustResolutions(inputs);
var outputVideo = FilesUtils.GetMediaFile("{0}.mp4", Guid.NewGuid());
var files = "";
var filters = "-filter_complex \"";
for (var i = 0; i < tempVideos.Count; i++)
{
files += $"-i {tempVideos[i]} ";
filters += $"[{i}:v:0][{i}:a:0]";
}
var parameters = files + filters + $"concat=n={tempVideos.Count}:v=1:a=1[outv][outa]\" " +
$"-map \"[outv]\" -map \"[outa]\" -y {outputVideo}";
using (var process = ConfigureProcess(FfmpegPath, parameters))
{
process.Start();
process.WaitForExit();
}
FilesUtils.CleanTempFiles(tempVideos);
return(outputVideo);
}
public string GetFrame(string inputVideo, int timeInSeconds)
{
var inputVideoName = Path.GetFileNameWithoutExtension(inputVideo);
var outputFrame = FilesUtils.GetMediaFile("{0}_{1}_sec.jpeg", inputVideoName, timeInSeconds);
var parameters = $"-ss {timeInSeconds} -i {inputVideo} -frames:v 1 -y {outputFrame}";
using (var process = ConfigureProcess(FfmpegPath, parameters))
{
process.Start();
process.WaitForExit();
}
return(outputFrame);
}
public string Convert(string inputVideo, VideoConversionOptions options)
{
var outputFile = FilesUtils.GetMediaFile(
"{0}_{1}.{2}",
Path.GetFileNameWithoutExtension(inputVideo),
Guid.NewGuid(),
options.Format.ToString().ToLower());
var parameters = $"-i {inputVideo} ";
if (VideoCodecs.ContainsKey(options.Format))
{
parameters += $"-vcodec {VideoCodecs[options.Format]} ";
}
if (options.Width != 0 && options.Height != 0)
{
parameters += $"-s {options.Width}x{options.Height} ";
}
if (options.HorizontalAspect != 0 && options.VerticalAspect != 0)
{
parameters += $"-aspect {options.Width}:{options.Height} ";
}
if (options.Bitrate > 0)
{
parameters += $"-b:v {options.Bitrate}k ";
}
if (AudioCodecs.ContainsKey(options.Format))
{
parameters += $"-acodec {AudioCodecs[options.Format]} -b:a 64k ";
}
parameters += $"-y {outputFile}";
using (var process = ConfigureProcess(FfmpegPath, parameters))
{
process.Start();
process.WaitForExit();
}
return(outputFile);
}
