public TranscodeAction(TranscodePlugin plugin, Preset preset)
{
m_Plugin = plugin;
m_Preset = preset;
}
private static Size CalculateDimensions(ref Size s, Preset preset, double aspectRatio)
{
if (aspectRatio < 1.34 & aspectRatio >= 1.33) {
aspectRatio = 4.0 / 3.0;
//....
} else if (aspectRatio < 1.78 & aspectRatio >= 1.77) {
aspectRatio = 16.0 / 9.0;
//....
} else if (aspectRatio <= 2.4 & aspectRatio >= 2.35) {
aspectRatio = 2.35;
//....
}
if (s.Width > preset.MaxWidth || s.Height > preset.MaxHeight) {
if (aspectRatio > (double) preset.MaxWidth / preset.MaxHeight) {
s.Height = (int) ((double) preset.MaxWidth / aspectRatio);
s.Width = preset.MaxWidth;
} else {
s.Height = preset.MaxHeight;
s.Width = (int) ((double) preset.MaxHeight * aspectRatio);
}
}
s.Width += s.Width % 2;
s.Height += s.Height % 2;
return s;
}
private void Transcode(MGFile file, ProgressStatus progress, Preset preset)
{
log.InfoFormat("Encoding using preset {0}...", preset.Name);
var p = new Process();
p.StartInfo = new ProcessStartInfo(GetEncoderPath(preset.Encoder));
var outputPath = new Uri(file.FileName + preset.Extension);
p.StartInfo.Arguments = BuildCommandLine(preset, file, outputPath);
log.InfoFormat("{0} {1}", p.StartInfo.FileName, p.StartInfo.Arguments);
p.StartInfo.CreateNoWindow = true;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.RedirectStandardOutput = true;
int totalFrames = file.Tags.GetInt(TVShowDataStoreTemplate.FrameCount).Value;
var statusParser = new EncoderStatusParser(preset.Encoder, totalFrames, progress);
p.OutputDataReceived += statusParser.OutputHandler;
p.ErrorDataReceived += statusParser.OutputHandler;
log.Debug("Starting...");
p.Start();
p.BeginErrorReadLine();
p.BeginOutputReadLine();
p.WaitForExit();
log.Debug("Done.");
if (p.ExitCode != 0)
log.ErrorFormat("Encoding failed with error code {0}.", p.ExitCode);
else if (!File.Exists(outputPath.LocalPath))
log.ErrorFormat("Encoding failed- output file doesn't exist: \"{0}\".", outputPath.LocalPath);
else {
MGFile newFile = m_DataStore.AddNewFile(outputPath);
Mp4TagWriterPlugin.WriteMp4TvShowTags(newFile);
}
}
private static string BuildCommandLine(Preset preset, MGFile file, Uri outputPath)
{
string cmd = Regex.Replace(preset.CommandLine, "\\s+", " ");
cmd = cmd.Replace("%input%", file.FileName);
cmd = cmd.Replace("%output%", outputPath.LocalPath);
cmd = cmd.Replace("%video-bitrate%", (768 * 1024).ToString());
cmd = cmd.Replace("%max-video-bitrate%", (1500 * 1024).ToString());
cmd = cmd.Replace("%audio-bitrate%", (128 * 1024).ToString());
int width = file.Tags.GetInt(TVShowDataStoreTemplate.VideoWidthPx).Value;
int height = file.Tags.GetInt(TVShowDataStoreTemplate.VideoHeightPx).Value;
double aspect = file.Tags.GetDouble(TVShowDataStoreTemplate.VideoDisplayAspectRatio).Value;
var size = new Size(width, height);
Size s = CalculateDimensions(ref size, preset, aspect);
cmd = cmd.Replace("%width%", s.Width.ToString());
cmd = cmd.Replace("%height%", s.Height.ToString());
cmd = cmd.Replace("%fps%", CalculateFrameRate(file.Tags.GetDouble(TVShowDataStoreTemplate.FrameRate).Value).ToString());
return cmd;
}
