private async void ButtonCreatePreview_Click(object sender, RoutedEventArgs e)
{
if (buttonCreatePreview.Content.ToString() == "Create preview")
{
await mediaElementOriginal.Pause();
blurEffect.Radius = 10;
buttonPlayPause.IsEnabled = false;
sliderPreview.Visibility = Visibility.Hidden;
buttonCreatePreview.Content = "Cancel";
textBlockPreviewTimespan.Text = "Cutting original...";
Storyboard storyboard = FindResource("ProgressAnimationIn") as Storyboard;
storyboard.Begin();
Directory.CreateDirectory(Environment.CurrentDirectory + "\\temp");
double keyFrameBefore = (await mediaFile.GetNearestBeforeAndAfterKeyFrames(start.TotalSeconds)).before;
start = TimeSpan.FromSeconds(keyFrameBefore);
end = start.Add(TimeSpan.FromSeconds(4));
conversionOptions = new ConversionOptions(encoder, 6, 16)
{
Start = start,
End = end
};
ffmpegEngine.FastCut(mediaFile.Source, Environment.CurrentDirectory + "\\temp\\source.mkv", start.Add(TimeSpan.FromSeconds(0.1)).ToString(@"hh\:mm\:ss\.ff"), end.ToString(@"hh\:mm\:ss\.ff"));
}
else
{
ButtonClose_Click(null, null);
}
}
private async void ButtonCreatePreview_Click(object sender, RoutedEventArgs e)
{
if (buttonCreatePreview.Content.ToString() == "Create preview")
{
await mediaElementOriginal.Pause();
blurEffect.Radius = 10;
buttonPlayPause.IsEnabled = false;
sliderPreview.Visibility = Visibility.Hidden;
buttonCreatePreview.Content = "Cancel";
textBlockPreviewBuildProgress.Text = $"Creating preview ({currentPreview}/{PREVIEW_COUNT})";
Storyboard storyboard = FindResource("ProgressAnimationIn") as Storyboard;
storyboard.Begin();
Directory.CreateDirectory(Environment.CurrentDirectory + "\\temp");
double keyFrameBefore = (await mediaFile.GetNearestBeforeAndAfterKeyFrames(start.TotalSeconds)).before;
start = TimeSpan.FromSeconds(keyFrameBefore);
end = start.Add(TimeSpan.FromSeconds(4));
encoder.Preset = Preset.VeryFast;
encoder.Quality = Quality.Best;
conversionOptions = new ConversionOptions(encoder);
conversionOptions.SkipAudio = true;
conversionOptions.EncodeSections = new TimeIntervalCollection(mediaFile.Duration);
conversionOptions.EncodeSections.Add(start, end);
ffmpegEngine.Convert(mediaFile, Environment.CurrentDirectory + "\\temp\\preview_0.mkv", conversionOptions);
}
else
{
ButtonClose_Click(null, null);
}
}
private async void UpdateKeyFrameSuggestions(TimeSpan t)
{
var(before, after, isKeyFrame) = await mediaInfo.GetNearestBeforeAndAfterKeyFrames(t.TotalSeconds);
t = TimeSpan.FromSeconds(before == 0 ? 0 : before);
textBlockStartBefore.Text = t.ToString(@"hh\:mm\:ss\.ff");
t = TimeSpan.FromSeconds(after);
textBlockStartAfter.Text = t.ToString(@"hh\:mm\:ss\.ff");
if (isKeyFrame)
{
textBoxStart.Foreground = new BrushConverter().ConvertFromString("#FF109320") as SolidColorBrush;
}
else
{
textBoxStart.Foreground = new BrushConverter().ConvertFromString("#FFC12222") as SolidColorBrush;
}
}
public async void Convert(MediaInfo sourceInfo, string destination, ConversionOptions conversionOptions)
{
progressData = new ProgressData();
//Captures the Synchronization Context of the caller, in order to invoke the events on its original thread
synchronizationContext = SynchronizationContext.Current;
//Duration
if (conversionOptions.End != TimeSpan.Zero)
{
progressData.TotalTime = conversionOptions.End - conversionOptions.Start;
}
else
{
progressData.TotalTime = sourceInfo.Duration - conversionOptions.Start;
}
//Filters
string filters = "";
if (conversionOptions.Resolution.HasValue() || conversionOptions.CropData.HasValue() || conversionOptions.Rotation.HasValue())
{
filters = " -vf " + ConcatFilters(conversionOptions.Resolution.FilterString, conversionOptions.CropData.FilterString, conversionOptions.Rotation.FilterString);
}
//Get nearest before keyframe
var keyframes = await sourceInfo.GetNearestBeforeAndAfterKeyFrames(conversionOptions.Start.TotalSeconds).ConfigureAwait(false);
TimeSpan startTime = TimeSpan.FromSeconds(keyframes.before);
//FFMpeg command string
StringBuilder sb = new StringBuilder("-y");
sb.Append($" -ss {startTime}");
sb.Append($" -i \"{sourceInfo.Source}\"");
if (sourceInfo.HasExternalAudio)
{
sb.Append($" -ss {startTime}");
sb.Append($" -i \"{sourceInfo.ExternalAudioSource}\"");
}
if (conversionOptions.End != TimeSpan.Zero)
{
sb.Append($" -t {conversionOptions.End - conversionOptions.Start}");
}
sb.Append($" -map 0:v:0");
if (!conversionOptions.SkipAudio)
{
foreach (var audioTrack in sourceInfo.AudioTracks)
{
if (audioTrack.Enabled)
{
sb.Append($" -map {(sourceInfo.HasExternalAudio ? "1" : "0")}:{audioTrack.StreamIndex}");
sb.Append($" -disposition:{audioTrack.StreamIndex} {(audioTrack.Default ? "default" : "none")}");
}
}
}
sb.Append(" -map 0:s?");
sb.Append(" -movflags faststart -c:v " + conversionOptions.Encoder.GetFFMpegCommand());
if (conversionOptions.Framerate > 0)
{
sb.Append(" -r " + conversionOptions.Framerate);
}
sb.Append(filters);
sb.Append(conversionOptions.SkipAudio ? " -an" : " -c:a copy");
sb.Append($" -ss {conversionOptions.Start - startTime}");
sb.Append($" -avoid_negative_ts 1 \"{destination}\" -hide_banner");
StartConversionProcess(sb.ToString());
}