public async Task StartAsync(VideoConverterArgs Args, IProgress <int> Progress)
{
if (!FFmpegService.FFmpegExists)
{
throw new FFmpegNotFoundException();
}
var argsBuilder = new FFmpegArgsBuilder();
argsBuilder.AddInputFile(Args.InputFile);
var output = argsBuilder.AddOutputFile(Args.FileName)
.SetFrameRate(Args.FrameRate);
_videoCodec.Apply(ServiceProvider.Get <FFmpegSettings>(), Args, output);
//if (Args.AudioProvider != null)
{
_videoCodec.AudioArgsProvider(Args.AudioQuality, output);
}
var process = FFmpegService.StartFFmpeg(argsBuilder.GetArgs(), Args.FileName, out var log);
log.ProgressChanged += Progress.Report;
await Task.Run(() => process.WaitForExit());
if (process.ExitCode != 0)
{
throw new FFmpegException(process.ExitCode);
}
Progress.Report(100);
}
public async Task Run(string SourceFile,
TimeSpan From,
TimeSpan To,
string DestFile,
bool HasAudio)
{
var argsBuilder = new FFmpegArgsBuilder();
var inputArgs = argsBuilder.AddInputFile(SourceFile)
.AddArg("ss", From)
.AddArg("to", To);
if (HasAudio)
{
inputArgs.SetAudioCodec("copy");
}
argsBuilder.AddOutputFile(DestFile);
var args = argsBuilder.GetArgs();
var process = FFmpegService.StartFFmpeg(args, DestFile, out _);
await Task.Factory.StartNew(process.WaitForExit);
if (process.ExitCode != 0)
{
throw new FFmpegException(process.ExitCode);
}
}
public async Task StartAsync(VideoConverterArgs Args, IProgress <int> Progress)
{
if (!FFmpegService.FFmpegExists)
{
throw new FFmpegNotFoundException();
}
var argsBuilder = new FFmpegArgsBuilder();
argsBuilder.AddInputFile(Args.InputFile);
const string filter = "\"[0:v] split [a][b];[a] palettegen [p];[b][p] paletteuse\"";
argsBuilder.AddOutputFile(Args.FileName)
.AddArg("filter_complex", filter)
.SetFrameRate(Args.FrameRate);
var process = FFmpegService.StartFFmpeg(argsBuilder.GetArgs(), Args.FileName, out var log);
log.ProgressChanged += Progress.Report;
await Task.Run(() => process.WaitForExit());
if (process.ExitCode != 0)
{
throw new FFmpegException(process.ExitCode);
}
Progress.Report(100);
}
public void Dispose()
{
_prevWriterDisposeTask?.Wait();
_currentWriter?.Dispose();
var currentFile = GetFileName(_currentFile);
var prevFile = GetFileName((_currentFile - 1 + NoOfFiles) % NoOfFiles);
var currentDuration = _currentFrame * 1000 / _videoWriterArgs.FrameRate;
var prevDuration = _duration * 1000 - currentDuration;
// Prev file only
if (currentDuration == 0 && File.Exists(prevFile))
{
File.Move(prevFile, _videoWriterArgs.FileName);
}
else if (prevDuration == 0 || !File.Exists(prevFile)) // Current file only
{
File.Move(currentFile, _videoWriterArgs.FileName);
}
else // Concat
{
var argsBuilder = new FFmpegArgsBuilder();
argsBuilder.AddInputFile(prevFile)
.AddArg("ss", $"{TimeSpan.FromMilliseconds(currentDuration):g}");
argsBuilder.AddInputFile(currentFile);
var hasAudio = _videoWriterArgs.AudioProvider != null;
const string filter = "[0:v] [1:v] concat=n=2:v=1:a=0 [v]";
const string filterWithAudio = "[0:v] [0:a] [1:v] [1:a] concat=n=2:v=1:a=1 [v] [a]";
var output = argsBuilder.AddOutputFile(_videoWriterArgs.FileName)
.AddArg($"-filter_complex \"{(hasAudio ? filterWithAudio : filter)}\"")
.AddArg("-map \"[v]\"");
if (hasAudio)
{
output.AddArg("-map \"[a]\"");
}
var args = argsBuilder.GetArgs();
var process = FFmpegService.StartFFmpeg(args, _videoWriterArgs.FileName, out _);
process.WaitForExit();
}
for (var i = 0; i < NoOfFiles; i++)
{
var filename = GetFileName(i);
if (File.Exists(filename))
{
File.Delete(filename);
}
}
}
public FFmpegAudioWriter(string FileName, int AudioQuality, FFmpegAudioArgsProvider AudioArgsProvider, int Frequency = 44100, int Channels = 2)
{
if (!FFmpegService.FFmpegExists)
{
throw new FFmpegNotFoundException();
}
var argsBuilder = new FFmpegArgsBuilder();
argsBuilder.AddStdIn()
.SetFormat("s16le")
.SetAudioCodec("pcm_s16le")
.SetAudioFrequency(Frequency)
.SetAudioChannels(Channels)
.DisableVideo();
var output = argsBuilder.AddOutputFile(FileName);
AudioArgsProvider(AudioQuality, output);
_ffmpegProcess = FFmpegService.StartFFmpeg(argsBuilder.GetArgs(), FileName, out _);
_ffmpegIn = _ffmpegProcess.StandardInput.BaseStream;
}
/// <summary>
/// Creates a new instance of <see cref="FFmpegWriter"/>.
/// </summary>
public FFmpegWriter(FFmpegVideoWriterArgs Args)
{
if (!FFmpegService.FFmpegExists)
{
throw new FFmpegNotFoundException();
}
var nv12 = Args.ImageProvider.DummyFrame is INV12Frame;
var settings = ServiceProvider.Get <FFmpegSettings>();
var w = Args.ImageProvider.Width;
var h = Args.ImageProvider.Height;
_videoBuffer = new byte[(int)(w * h * (nv12 ? 1.5 : 4))];
Console.WriteLine($"Video Buffer Allocated: {_videoBuffer.Length}");
var videoPipeName = GetPipeName();
var argsBuilder = new FFmpegArgsBuilder();
argsBuilder.AddInputPipe(videoPipeName)
.AddArg("thread_queue_size", 512)
.AddArg("framerate", Args.FrameRate)
.SetFormat("rawvideo")
.AddArg("pix_fmt", nv12 ? "nv12" : "rgb32")
.SetVideoSize(w, h);
var output = argsBuilder.AddOutputFile(Args.FileName)
.SetFrameRate(Args.FrameRate);
Args.VideoCodec.Apply(settings, Args, output);
if (settings.Resize)
{
var width = settings.ResizeWidth;
var height = settings.ResizeHeight;
if (width % 2 == 1)
{
++width;
}
if (height % 2 == 1)
{
++height;
}
output.AddArg("vf", $"scale={width}:{height}");
}
if (Args.AudioProvider != null)
{
var audioPipeName = GetPipeName();
argsBuilder.AddInputPipe(audioPipeName)
.AddArg("thread_queue_size", 512)
.SetFormat("s16le")
.SetAudioCodec("pcm_s16le")
.SetAudioFrequency(Args.Frequency)
.SetAudioChannels(Args.Channels);
Args.VideoCodec.AudioArgsProvider(Args.AudioQuality, output);
var wf = Args.AudioProvider.WaveFormat;
_audioBytesPerFrame = (int)((1.0 / Args.FrameRate)
* wf.SampleRate
* wf.Channels
* (wf.BitsPerSample / 8.0));
// UpdatePeriod * Frequency * (Bytes per Second) * Channels * 2
var audioBufferSize = (int)((1000.0 / Args.FrameRate) * 44.1 * 2 * 2 * 2);
_audioPipe = new NamedPipeServerStream(audioPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 0, audioBufferSize);
}
_ffmpegIn = new NamedPipeServerStream(videoPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 0, _videoBuffer.Length);
_ffmpegProcess = FFmpegService.StartFFmpeg(argsBuilder.GetArgs(), Args.FileName, out _);
}
