public void Process()
{
using (MFSystem.Start())
{
var readWriteFactory = new ReadWriteClassFactory();
var attributes = new Attributes
{
ReadWriterEnableHardwareTransforms = true,
SourceReaderEnableVideoProcessing = true,
};
var destAttributes = new Attributes
{
ReadWriterEnableHardwareTransforms = true,
SourceReaderEnableVideoProcessing = true,
MaxKeyFrameSpacing = 3000
};
var shortSourceReader = readWriteFactory.CreateSourceReaderFromURL(shortSourceFile, attributes);
var shortSourceReader2 = readWriteFactory.CreateSourceReaderFromURL(shortSourceFile, attributes);
var mainSourceReader = readWriteFactory.CreateSourceReaderFromURL(mainSourceFile, attributes);
var sinkWriter = readWriteFactory.CreateSinkWriterFromURL(destinationFile, destAttributes);
var writeToSink = ConnectStreams(shortSourceReader, shortSourceReader2, mainSourceReader, sinkWriter);
ProcessSample progress = sample =>
{
if(!sample.Flags.EndOfStream)
Trace.WriteLine(string.Format("sourceTime: {0}, sampleTime: {1}", sample.Timestamp.FromNanoToSeconds(), sample.SampleTime.FromNanoToSeconds()));
return writeToSink(sample);
};
var fadeSegments = AVOperations.FadeIn(AVOperations.FadeOut(progress));
var editoutMiddle = AVOperations.Cut(9.FromSecondsToNano(), 19.FromSecondsToNano(), fadeSegments);
var overlay = AVOperations.Overlay(applyOverlay, editoutMiddle);
var first4Seconds = AVOperations.Cut(0.FromSecondsToNano(), 4.FromSecondsToNano(), progress, progress);
var readers = AVOperations.Combine(new[] { shortSourceReader, mainSourceReader }, 1.1);
using (sinkWriter.BeginWriting())
{
AVOperations.StartConcat(readers, overlay,
AVOperations.Concat(shortSourceReader, first4Seconds, () => false), () => false);
}
}
}
public static VideoDetails For(string videoFileName)
{
List<int> supportedAudioBitRates = new List<int>();
using (MFSystem.Start())
{
var readWriteFactory = new ReadWriteClassFactory();
var sourceReader = readWriteFactory.CreateSourceReaderFromURL(videoFileName, null);
var videoStream = sourceReader.Streams.First(s => s.IsSelected && s.NativeMediaType.IsVideo);
var audioStream = sourceReader.Streams.First(s => s.IsSelected && s.NativeMediaType.IsAudio);
var channels = audioStream.NativeMediaType.AudioNumberOfChannels;
var sampleRate = audioStream.NativeMediaType.AudioSamplesPerSecond;
var types = MFSystem.TranscodeGetAudioOutputAvailableTypes(MediaFoundation.MFMediaType.WMAudioV9, MediaFoundation.Transform.MFT_EnumFlag.All);
foreach (var bitRate in types
.Where(t => t.AudioNumberOfChannels == channels && t.AudioSamplesPerSecond == sampleRate)
.Select(t => t.AudioAverageBytesPerSecond)
.Distinct()
.OrderBy(t => t))
{
supportedAudioBitRates.Add(bitRate * 8);
}
int videoBitRate = 0;
videoStream.NativeMediaType.TryGetBitRate(out videoBitRate);
return new VideoDetails(supportedAudioBitRates.ToArray(), videoStream.NativeMediaType.FrameRate.ToInt(), videoStream.NativeMediaType.FrameSize, videoBitRate / 1000000);
}
}
public SourceReaderExtra CreateSourceReader(ReadWriteClassFactory readWriteFactory, Attributes attributes)
{
TraceDebug.WriteLine("Attempting to open file {0}".F(this.FileName));
var reader = readWriteFactory.CreateSourceReaderFromURL(this.FileName, attributes);
TraceDebug.WriteLine("Opened file {0}. Duration: {1}".F(this.FileName, reader.Duration.FromNanoToSeconds()));
return new SourceReaderExtra(this.FileName, this.State, reader);
}
public SourceReaderExtra CreateSourceReader(ReadWriteClassFactory readWriteFactory, Attributes attributes)
{
TraceDebug.WriteLine("Attempting to open file {0}".F(this.FileName));
var reader = readWriteFactory.CreateSourceReaderFromURL(this.FileName, attributes);
TraceDebug.WriteLine("Opened file {0}. Duration: {1}".F(this.FileName, reader.Duration.FromNanoToSeconds()));
return(new SourceReaderExtra(this.FileName, this.State, reader));
}
public void Process()
{
using (MFSystem.Start())
{
var readWriteFactory = new ReadWriteClassFactory();
var attributes = new Attributes
{
ReadWriterEnableHardwareTransforms = true,
SourceReaderEnableVideoProcessing = true,
};
var destAttributes = new Attributes
{
ReadWriterEnableHardwareTransforms = true,
SourceReaderEnableVideoProcessing = true,
MaxKeyFrameSpacing = 3000
};
var sourceReader = readWriteFactory.CreateSourceReaderFromURL(sourceFile, attributes);
var sinkWriter = readWriteFactory.CreateSinkWriterFromURL(destinationFile, destAttributes);
var writeToSink = ConnectStreams(sourceReader, sinkWriter);
using (sinkWriter.BeginWriting())
{
sourceReader.Samples(sample =>
{
Console.Clear();
Console.WriteLine(TimeSpan.FromSeconds(sample.Timestamp.FromNanoToSeconds()));
return writeToSink(sample);
});
}
}
}
public static VideoDetails TestFor(string videoFileName)
{
List<int> supportedAudioBitRates = new List<int>();
using (MFSystem.Start())
{
var readWriteFactory = new ReadWriteClassFactory();
var sourceReader = readWriteFactory.CreateSourceReaderFromURL(videoFileName, null);
var videoStream = sourceReader.Streams.FirstOrDefault(s => s.IsSelected && s.NativeMediaType.IsVideo);
if (videoStream.IsNull)
throw new Exception("Unable to find video track within file.");
var audioStream = sourceReader.Streams.FirstOrDefault(s => s.IsSelected && s.NativeMediaType.IsAudio);
if (audioStream.IsNull)
throw new Exception("Unable to find audio track within file.");
var channels = audioStream.NativeMediaType.AudioNumberOfChannels;
var sampleRate = audioStream.NativeMediaType.AudioSamplesPerSecond;
var types = MFSystem.TranscodeGetAudioOutputAvailableTypes(MediaFoundation.MFMediaType.WMAudioV9, MediaFoundation.Transform.MFT_EnumFlag.All);
foreach (var bitRate in types
.Where(t => t.AudioSamplesPerSecond == sampleRate)
.Select(t => t.AudioAverageBytesPerSecond)
.Distinct()
.OrderBy(t => t))
{
supportedAudioBitRates.Add(bitRate);
}
int videoBitRate = 0;
videoStream.NativeMediaType.TryGetBitRate(out videoBitRate);
var audioSamplesPerSecond = audioStream.NativeMediaType.AudioSamplesPerSecond;
var audioAverageBytesPerSecond = audioStream.NativeMediaType.AudioAverageBytesPerSecond;
var audioSubTypeName = audioStream.CurrentMediaType.SubTypeName;
var videoSubTypeName = videoStream.CurrentMediaType.SubTypeName;
var transcoder = new Transcoder
{
VideoFiles = new[] { new SourceReaderExtra(videoFileName, null) },
DestinationFile = Path.ChangeExtension(videoFileName, "wmv"),
VideoBitRate = 5000000
};
var errorMessage = transcoder.TestVideoConversion();
return new VideoDetails(
supportedAudioBitRates.ToArray(),
videoStream.NativeMediaType.FrameRate.ToInt(),
videoStream.NativeMediaType.FrameSize,
videoBitRate / 1000000,
audioSamplesPerSecond,
audioAverageBytesPerSecond,
videoSubTypeName,
audioSubTypeName,
transcoder,
errorMessage);
}
}
public static VideoDetails TestFor(string videoFileName)
{
List <int> supportedAudioBitRates = new List <int>();
using (MFSystem.Start())
{
var readWriteFactory = new ReadWriteClassFactory();
var sourceReader = readWriteFactory.CreateSourceReaderFromURL(videoFileName, null);
var videoStream = sourceReader.Streams.FirstOrDefault(s => s.IsSelected && s.NativeMediaType.IsVideo);
if (videoStream.IsNull)
{
throw new Exception("Unable to find video track within file.");
}
var audioStream = sourceReader.Streams.FirstOrDefault(s => s.IsSelected && s.NativeMediaType.IsAudio);
if (audioStream.IsNull)
{
throw new Exception("Unable to find audio track within file.");
}
var channels = audioStream.NativeMediaType.AudioNumberOfChannels;
var sampleRate = audioStream.NativeMediaType.AudioSamplesPerSecond;
var types = MFSystem.TranscodeGetAudioOutputAvailableTypes(MediaFoundation.MFMediaType.WMAudioV9, MediaFoundation.Transform.MFT_EnumFlag.All);
foreach (var bitRate in types
.Where(t => t.AudioSamplesPerSecond == sampleRate)
.Select(t => t.AudioAverageBytesPerSecond)
.Distinct()
.OrderBy(t => t))
{
supportedAudioBitRates.Add(bitRate);
}
int videoBitRate = 0;
videoStream.NativeMediaType.TryGetBitRate(out videoBitRate);
var audioSamplesPerSecond = audioStream.NativeMediaType.AudioSamplesPerSecond;
var audioAverageBytesPerSecond = audioStream.NativeMediaType.AudioAverageBytesPerSecond;
var audioSubTypeName = audioStream.CurrentMediaType.SubTypeName;
var videoSubTypeName = videoStream.CurrentMediaType.SubTypeName;
var transcoder = new Transcoder
{
VideoFiles = new[] { new SourceReaderExtra(videoFileName, null) },
DestinationFile = Path.ChangeExtension(videoFileName, "wmv"),
VideoBitRate = 5000000
};
var errorMessage = transcoder.TestVideoConversion();
return(new VideoDetails(
supportedAudioBitRates.ToArray(),
videoStream.NativeMediaType.FrameRate.ToInt(),
videoStream.NativeMediaType.FrameSize,
videoBitRate / 1000000,
audioSamplesPerSecond,
audioAverageBytesPerSecond,
videoSubTypeName,
audioSubTypeName,
transcoder,
errorMessage));
}
}
public SourceReaderExtra CreateSourceReader(ReadWriteClassFactory readWriteFactory, Attributes attributes)
{
var reader = readWriteFactory.CreateSourceReaderFromURL(this.FileName, attributes);
return new SourceReaderExtra(this.FileName, this.State, reader);
}