private void GenerateVideo(ISampleSource source)
{
Console.WriteLine("Initializing video writer...");
using (var writer = new VideoWriter(options.OutputFile.FullName))
{
writer.Width = 1920;
writer.Height = 1080;
writer.Fps = options.Fps;
writer.AudioSampleRate = source.WaveFormat.SampleRate;
writer.Open();
double totalFrames = FrameMath.CalculateTotalFrames(source, options);
Console.WriteLine("Initializing renderer...");
using (var renderer = new GLRenderer(false))
{
var wallpaper = Image.FromFile(options.WallpaperFile.FullName) as Bitmap;
wallpaperTexture = renderer.LoadTexture(wallpaper);
effectChain.Initialize(source.ToMono(), options);
Console.WriteLine("Generating video...");
float[] sampleBuffer = new float[writer.AudioSamplesPerFrame];
var frameNumber = 0;
while (true)
{
if (writer.WriteVideo)
{
renderer.Clear();
RenderFrame(renderer, new Frame(frameNumber, TimeSpan.FromSeconds(frameNumber / (double)options.Fps)));
var frame = renderer.Snapshot();
writer.WriteVideoFrame(frame);
if (frameNumber % 60 == 0)
{
ProgressHandler?.Invoke(Math.Round(frameNumber / totalFrames * 100.0, 2));
}
frameNumber++;
}
else
{
var read = source.Read(sampleBuffer, 0, sampleBuffer.Length);
if (read > 0)
{
writer.WriteAudioFrame(sampleBuffer);
}
else
{
break;
}
}
}
ProgressHandler?.Invoke(Math.Round(frameNumber / totalFrames * 100.0, 2));
}
}
}
public static void Main(string[] args)
{
var success = FFmpegLoader.Load(FFmpegPath);
if (!success)
{
Console.WriteLine("Could not load FFmpeg");
return;
}
Console.WriteLine($"Loaded FFmpeg v{FFmpegLoader.FFmpegVersion}");
var bitmap = (Bitmap)Image.FromFile(ImagePath);
var audio = CodecFactory.Instance.GetCodec(AudioPath)
.ToSampleSource();
using (var writer = new VideoWriter(OutputPath))
{
writer.Open();
float[] audioData = new float[writer.AudioSamplesPerFrame];
while (true)
{
if (writer.WriteVideo)
{
// Write a video frame
writer.WriteVideoFrame(bitmap);
}
else
{
// Write an audio frame
int read = audio.Read(audioData, 0, audioData.Length);
if (read <= 0)
{
break;
}
writer.WriteAudioFrame(audioData);
}
}
}
}