/// <summary>
/// Creates an AviSynth script that will auto-pitch the audio to 432hz. You then open this script file in the video player instead of directly opening the file.
/// </summary>
/// <param name="inputFile">The video to play.</param>
/// <param name="infoReader">An object to read media information.</param>
public static void CreateScript(string inputFile, MediaInfoReader infoReader) {
bool AviSynthPlus = MpcConfigBusiness.GetAviSynthVersion() == AviSynthVersion.AviSynthPlus;
AviSynthScriptBuilder Script = new AviSynthScriptBuilder();
Script.AddPluginPath();
if (AviSynthPlus) {
//Script.AppendLine(@"SetFilterMTMode(""DEFAULT_MT_MODE"",2)");
//Script.AppendLine(@"SetFilterMTMode(""LWLibavVideoSource"",3)");
//Script.AppendLine(@"SetFilterMTMode(""LWLibavAudioSource"",3)");
Script.OpenDirect(inputFile, Settings.AutoPitchCache, !string.IsNullOrEmpty(infoReader.AudioFormat), 0);
Script.AppendLine("Preroll(int(FrameRate*3))");
// This causes a slight audio delay in AviSynth 2.6
Script.LoadPluginDll("TimeStretch.dll");
Script.AppendLine("ResampleAudio(48000)");
Script.AppendLine("TimeStretchPlugin(pitch = 100.0 * 0.98181819915771484)");
//Script.AppendLine("Prefetch({0})", CPU);
} else {
int CPU = Environment.ProcessorCount / 2;
Script.AppendLine("SetMTMode(3,{0})", CPU);
Script.OpenDirect(inputFile, Settings.AutoPitchCache, !string.IsNullOrEmpty(infoReader.AudioFormat), CPU);
Script.AppendLine("SetMTMode(2)");
Script.AppendLine("Preroll(int(FrameRate*3))");
//Script.AppendLine("Loop(int(FrameRate/2), 0, 0)");
//Script.LoadPluginAvsi("UUSize4.avsi");
//Script.AppendLine("UUSize4(mod=4)");
// This slightly slows down playback speed but audio stays in sync
Script.AppendLine("V = AssumeFPS(432.0 / 440.0 * FrameRate)");
Script.AppendLine("A = AssumeSampleRate(int(432.0 / 440.0 * AudioRate))");
Script.AppendLine("AudioDub(V, A)");
}
Script.Cleanup();
Script.WriteToFile(Settings.AutoPitchFile);
File.Delete(Settings.AutoPitchCache);
}
public void GenerateScript(MediaEncoderSettings settings, bool preview, bool multiThreaded) {
AviSynthScriptBuilder Script = new AviSynthScriptBuilder(settings.CustomScript);
if (Script.IsEmpty)
Script = GenerateVideoScript(settings, GetPreviewSourceFile(settings), preview, multiThreaded);
else if (preview) {
Script.RemoveMT();
Script.AppendLine(@"ConvertToRGB32(matrix=""Rec709"")");
} else if (!multiThreaded)
Script.RemoveMT();
Script.WriteToFile(PreviewScriptFile);
SaveSettingsFile(settings, PreviewSettingsFile);
}
/// <summary>
/// Starts encoding with specified settings. If an encoding is already in process, it will be added
/// to the queue and start once the previous encodings are finished.
/// </summary>
/// <param name="settings">The encoding settings.</param>
public async Task EncodeFileAsync(MediaEncoderSettings settings) {
settings.JobIndex = ++JobIndex;
// Files must be prepared before adding to queue so that user can replace preview files.
DeleteJobFiles(settings);
File.Delete(PreviewScriptFile);
File.Delete(PreviewSettingsFile);
if (settings.ConvertToAvi)
SafeMove(PreviewSourceFile, settings.InputFile);
SaveSettingsFile(settings, settings.SettingsFile);
AviSynthScriptBuilder Script = new AviSynthScriptBuilder(settings.CustomScript);
if (Script.IsEmpty)
Script = GenerateVideoScript(settings, settings.InputFile, false, true);
else
Script.Replace(Script.GetAsciiPath(PreviewSourceFile), Script.GetAsciiPath(settings.InputFile));
//Script.DitherOut(true);
Script.WriteToFile(settings.ScriptFile);
await StartEncodeFileAsync(settings);
}