private async Task Convert()
{
DialogResult result = dialogSaveOutput.ShowDialog();
string outputPath = "";
if (result == DialogResult.OK)
{
outputPath = dialogSaveOutput.FileName;
}
else
{
return;
}
txtOutput.Text = "";
prgProgressBar.Value = 0;
string audio = dialogOpenAudioFile.FileName;
string image = dialogOpenCoverArt.FileName;
await FFmpegDownloader.GetLatestVersion(FFmpegVersion.Official);
// FFMpeg arguments based on this answer
// https://superuser.com/a/1041818
IConversion conversion = FFmpeg.Conversions.New();
conversion
.SetOutput(outputPath)
.SetOverwriteOutput(true)
.AddParameter("-loop 1")
.AddParameter("-y")
.AddParameter($"-i {image}")
.AddParameter($"-i {audio}")
.AddParameter("-shortest")
.AddParameter("-framerate 2")
.AddParameter("-acodec copy")
.AddParameter("-vcodec mjpeg")
.AddParameter("-preset ultrafast");
string ffmpegParams = conversion.Build();
txtOutput.AppendText($"ffmpeg {ffmpegParams}{Environment.NewLine}");
conversion.OnDataReceived += Conversion_OnDataReceived;
conversion.OnProgress += Conversion_OnProgress;
try
{
_state = State.Converting;
btnCreate.Text = Language.Stop;
IConversionResult conversionResult = await conversion.Start(_cts.Token);
}
catch (OperationCanceledException) { }
catch (Exception ex)
{
_state = State.Ready;
btnCreate.Text = Language.Convert;
txtOutput.AppendText(Environment.NewLine + Environment.NewLine + ex.Message);
}
}
public async Task BurnSubtitlesWithParametersTest()
{
IMediaInfo inputFile = await MediaInfo.Get(Resources.MkvWithAudio);
string outputPath = Path.ChangeExtension(Path.GetTempFileName(), FileExtensions.Mp4);
IConversion conversion = Conversion.New()
.AddStream(inputFile.VideoStreams.First()
.AddSubtitles(Resources.SubtitleSrt, "UTF-8", "Fontsize=20,PrimaryColour=&H00ffff&,MarginV=30", new VideoSize(1024, 768)))
.SetOutput(outputPath);
IConversionResult conversionResult = await conversion.Start();
Assert.True(conversionResult.Success);
IMediaInfo mediaInfo = await MediaInfo.Get(outputPath);
Assert.Equal(TimeSpan.FromSeconds(9), mediaInfo.Duration);
Assert.Equal(TimeSpan.FromSeconds(9), mediaInfo.Duration);
Assert.Equal("h264", mediaInfo.VideoStreams.First().Format);
Assert.False(mediaInfo.AudioStreams.Any());
Assert.Contains($":charenc=UTF-8:force_style='Fontsize=20,PrimaryColour=&H00ffff&,MarginV=30':original_size=1024x768", conversion.Build());
}
public async Task BurnSubtitlesWithParametersTest()
{
IMediaInfo inputFile = await FFmpeg.GetMediaInfo(Resources.MkvWithAudio);
string outputPath = _storageFixture.GetTempFileName(FileExtensions.Mp4);
IConversion conversion = FFmpeg.Conversions.New()
.AddStream(inputFile.VideoStreams.First()
.AddSubtitles(Resources.SubtitleSrt, VideoSize.Xga, "UTF-8", "Fontsize=20,PrimaryColour=&H00ffff&,MarginV=30"))
.SetOutput(outputPath);
IConversionResult conversionResult = await conversion.Start();
IMediaInfo mediaInfo = await FFmpeg.GetMediaInfo(outputPath);
Assert.Equal(9, mediaInfo.Duration.Seconds);
Assert.Equal("h264", mediaInfo.VideoStreams.First().Codec);
Assert.False(mediaInfo.AudioStreams.Any());
Assert.Contains($":charenc=UTF-8:force_style='Fontsize=20,PrimaryColour=&H00ffff&,MarginV=30':original_size=1024x768", conversion.Build());
}