/// <inheritdoc />
public IVideoStream SetSize(VideoSize size)
{
_size = $"-s {size.ToFFmpegFormat()} ";
return(this);
}
public static IConversion VisualiseAudio(string inputPath, string outputPath, VideoSize size,
PixelFormat pixelFormat = PixelFormat.yuv420p,
VisualisationMode mode = VisualisationMode.bar,
AmplitudeScale amplitudeScale = AmplitudeScale.lin,
FrequencyScale frequencyScale = FrequencyScale.log)
{
IMediaInfo inputInfo = FFmpeg.GetMediaInfo(inputPath).GetAwaiter().GetResult();
IAudioStream audioStream = inputInfo.AudioStreams.FirstOrDefault();
IVideoStream videoStream = inputInfo.VideoStreams.FirstOrDefault();
string filter = $"\"[0:a]showfreqs=mode={mode}:fscale={frequencyScale}:ascale={amplitudeScale},format={pixelFormat},scale={size.ToFFmpegFormat()} [v]\"";
return(New()
.AddStream(audioStream)
.AddParameter($"-filter_complex {filter}")
.AddParameter("-map [v]")
.SetFrameRate(videoStream != null ? videoStream.Framerate : 30) // Pin framerate at the original rate or 30 fps to stop dropped or duplicated frames
.SetOutput(outputPath));
}
/// <inheritdoc />
public IConversion AddDesktopStream(VideoSize videoSize, double framerate = 30, int xOffset = 0, int yOffset = 0)
{
return(AddDesktopStream(videoSize.ToFFmpegFormat(), framerate, xOffset, yOffset));
}
/// <inheritdoc /> public IConversion GetScreenCapture(double frameRate, int xOffset = 0, int yOffset = 0, VideoSize?videoSize = null) => GetScreenCapture(frameRate, xOffset, yOffset, videoSize?.ToFFmpegFormat());
/// <inheritdoc />
public IVideoStream SetSize(VideoSize size)
{
_parameters.Add(new ConversionParameter($"-s {size.ToFFmpegFormat()}"));
return(this);
}
