public static IEnumerable <Chapter> GetChapters(string input)
{
Cutlist Cuts = new Cutlist();
ProcessStartInfo psiProbe = new ProcessStartInfo($"{FFMPEG}ffprobe.exe")
{
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = false,
Arguments = $"-show_chapters -print_format xml \"{input}\""
// Arguments = $"{DEBUG}-show_chapters -print_format xml \"{input}\""
};
Process pProbe = Process.Start(psiProbe);
Chapters data;
XmlSerializer ser = new XmlSerializer(typeof(Chapters));
// string output = pProbe.StandardOutput.ReadToEnd();
string error = pProbe.StandardError.ReadToEnd();
pProbe.WaitForExit();
data = (Chapters)ser.Deserialize(pProbe.StandardOutput);
pProbe.Close();
return(data.chapters);
}
public static void Trim2(string input, string mp4, Cutlist Cuts)
{
ProcessStartInfo psiFfmpeg = new ProcessStartInfo($"{FFMPEG}ffmpeg.exe")
{
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = false
// ,
// Arguments = $"-i \"{input}\" {buildComplexFilter(Cuts)} f:\\temp\\cut.mp4"
};
if (Cuts.Count == 0)
{
// psiFfmpeg.Arguments = $"-ss 6 - i \"{input}\" -vcodec copy -acodec copy -to {inputFile.Metadata.Duration.Subtract(TimeSpan.FromSeconds(13))} \"{mp4}\"";
}
else
{
double dur = Cuts.Sum(c => c.End - c.Start);
psiFfmpeg.Arguments = $"-i \"{input}\" {buildComplexFilter(Cuts)} -c:v copy -c:a copy -t {dur} {mp4}";
}
Process pFfmpeg = Process.Start(psiFfmpeg);
pFfmpeg.WaitForExit();
pFfmpeg.Close();
}
private static string buildComplexFilter(Cutlist Cuts)
{
char index = 'a';
string filter = $"-filter_complex \"";
string concat = "";
foreach (Cut c in Cuts)
{
filter += $"[0:v]trim=start={c.Start}:end={c.End - .1},setpts=PTS-STARTPTS[{index}v];";
filter += $"[0:a]atrim=start={c.Start}:end={c.End - .1},asetpts=PTS-STARTPTS[{index}a];";
concat += $"[{index}v][{index}a]";
index++;
}
filter += $"{concat}concat=n={Cuts.Count}:v=1:a=1 [v] [a]\" -map \"[v]\" -map \"[a]\"";
return(filter);
}
