private async Task <(MediaBuffer, bool)> ReadBufferAsync(HttpRequest request)
{
IMemoryOwner <byte> memoryBuffer = null;
try
{
bool endOfStream = false;
int bufferLength = 0;
memoryBuffer = _pool.Rent(BUFFER_SIZE);
var memory = memoryBuffer.Memory;
while (memory.Length > 0)
{
var bytesRead = await request.Body.ReadAsync(memory);
if (bytesRead == 0)
{
endOfStream = true;
break;
}
bufferLength += bytesRead;
memory = memory.Slice(bytesRead);
}
var mediaBuffer = new MediaBuffer(memoryBuffer, bufferLength);
memoryBuffer = null; // avoid it being released.
return(mediaBuffer, endOfStream);
}
finally
{
memoryBuffer?.Dispose();
}
}
public void UpdateSample(Bitmap bmp, MediaBuffer mb)
{
var g = Graphics.FromImage(bmp);
var text = DateTime.Now.ToString("HH:mm:ss.fff");
var font = new System.Drawing.Font(FontFamily.GenericMonospace, 120);
var textSize = g.MeasureString(text, font);
g.FillRectangle(Brushes.Black, 0f, 0f, textSize.Width, textSize.Height);
g.DrawString(text, font, Brushes.Yellow, 0f, 0f);
var data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
var size = data.Stride * data.Height;
var pBuffer = mb.Lock(out int cbMaxLen, out int cbCurLen);
Kernel32.CopyMemory(pBuffer, data.Scan0, (uint)size);
//Marshal.Copy(testArgb, 0, pBuffer, testArgb.Length);
mb.CurrentLength = size;
mb.Unlock();
bmp.UnlockBits(data);
g.Dispose();
//bmp.Dispose();
}
void RefreshRenders()
{
lock (_csAVQueue)
{
if (null != _videoRender)
{
if (_videoQueue.Count > 0)
{
MediaSample sample = _videoQueue.First.Value;
if (GetClock() >= sample.StartTime)
{
if (_unmanaged)
{
_videoRender.SetFrame(sample.UnmanagedBuffer.DataPtr, _videoStreamInfo.FrameWidth, _videoStreamInfo.FrameHeight);
_videoRender.Draw();
sample.UnmanagedBuffer.Release();
_videoQueue.RemoveFirst();
}
else
{
MediaBuffer buffer = sample.Buffer;
_videoRender.SetFrame(buffer.Start, _videoStreamInfo.FrameWidth, _videoStreamInfo.FrameHeight);
_videoRender.Draw();
_videoQueue.RemoveFirst();
}
}
}
}
}
}
static bool EncodeH264Stream(Options opt, Transcoder transcoder)
{
bool success = false;
try
{
using (var file = System.IO.File.OpenRead(opt.InputFile))
{
int videoBufferSize = MediaSample.VideoBufferSizeInBytes(opt.Width, opt.Height, opt.Color.Id);
if (videoBufferSize <= 0)
{
return(false);
}
MediaSample mediaSample = new MediaSample();
MediaBuffer mediaBuffer = new MediaBuffer(videoBufferSize);
mediaSample.Buffer = mediaBuffer;
int readBytes;
while (true)
{
mediaBuffer.SetData(0, videoBufferSize);
readBytes = file.Read(mediaBuffer.Start, 0, mediaBuffer.DataSize);
if (readBytes == videoBufferSize)
{
mediaBuffer.SetData(0, readBytes);
if (!transcoder.Push(0, mediaSample))
{
PrintStatus("Transcoder push", transcoder.Error);
success = false;
break;
}
success = true;
}
else
{
if (!transcoder.Flush())
{
success = false;
}
PrintStatus("Transcoder flush", transcoder.Error);
break;
}
}
}
}
catch (System.IO.DirectoryNotFoundException dnfe)
{
Console.WriteLine(dnfe);
success = false;
}
return(success);
}
/// <summary>
/// WaveStream to resample using the DMO Resampler
/// </summary>
/// <param name="inputProvider">Input Stream</param>
/// <param name="outputFormat">Desired Output Format</param>
public ResamplerDmoStream(IWaveProvider inputProvider, WaveFormat outputFormat)
{
this.inputProvider = inputProvider;
this.inputStream = inputProvider as WaveStream;
this.outputFormat = outputFormat;
this.resampler = new Resampler();
if (!resampler.MediaObject.SupportsInputWaveFormat(0, inputStream.WaveFormat))
{
throw new ArgumentException("Unsupported Input Stream format", "inputStream");
}
resampler.MediaObject.SetInputWaveFormat(0, inputStream.WaveFormat);
if (!resampler.MediaObject.SupportsOutputWaveFormat(0, outputFormat))
{
throw new ArgumentException("Unsupported Output Stream format", "outputStream");
}
resampler.MediaObject.SetOutputWaveFormat(0, outputFormat);
if (inputStream != null)
{
position = InputToOutputPosition(inputStream.Position);
}
inputMediaBuffer = new MediaBuffer(inputProvider.WaveFormat.AverageBytesPerSecond);
outputBuffer = new DmoOutputDataBuffer(outputFormat.AverageBytesPerSecond);
}
public void Close()
{
logger.Debug("MfWriter::Close()");
closed = true;
if (sinkWriter != null)
{
sinkWriter.Dispose();
sinkWriter = null;
}
if (bufTexture != null)
{
bufTexture.Dispose();
bufTexture = null;
}
if (videoSample != null)
{
videoSample.Dispose();
videoSample = null;
}
if (mediaBuffer != null)
{
mediaBuffer.Dispose();
mediaBuffer = null;
}
}
static void WriteAuFile(string outputDir, int au_index, MediaBuffer buffer)
{
string filePath = outputDir + "/au_" +
String.Format("{0:0000}", au_index) + ".h264";
using (BinaryWriter file = new BinaryWriter(File.Open(filePath, FileMode.Append)))
{
file.BaseStream.Write(buffer.Start, buffer.DataOffset, buffer.DataSize);
}
}
public void ResamplerCanCallProcessInput()
{
DmoResampler dmoResampler = new DmoResampler();
dmoResampler.MediaObject.SetInputWaveFormat(0, WaveFormat.CreateIeeeFloatWaveFormat(44100, 2));
dmoResampler.MediaObject.SetOutputWaveFormat(0, WaveFormat.CreateIeeeFloatWaveFormat(48000, 2));
using (MediaBuffer buffer = new MediaBuffer(44100 * 2 * 4))
{
buffer.Length = 8000;
dmoResampler.MediaObject.ProcessInput(0, buffer, DmoInputDataBufferFlags.None, 0, 0);
}
}
static bool Encode(Options opt)
{
DeleteFile(opt.OutputFile);
MediaSocket inSocket = new MediaSocket();
inSocket.File = opt.InputFile;
MediaSocket outSocket = CreateOutputSocket(opt);
bool success = false;
// create Transcoder
using (Transcoder transcoder = new Transcoder())
{
transcoder.AllowDemoMode = true;
transcoder.Inputs.Add(inSocket);
transcoder.Outputs.Add(outSocket);
if (!transcoder.Open())
{
PrintError("Transcoder open", transcoder.Error);
return(false);
}
using (FileStream outputFile = File.OpenWrite(opt.OutputFile))
{
MediaSample outputSample = new MediaSample();
int outputIndex = -1;
while (transcoder.Pull(out outputIndex, outputSample))
{
MediaBuffer buffer = outputSample.Buffer;
outputFile.Write(buffer.Start, buffer.DataOffset, buffer.DataSize);
}
ErrorInfo error = transcoder.Error;
PrintError("Transcoder pull", error);
if ((error.Code == (int)CodecError.EOS) &&
(error.Facility == ErrorFacility.Codec))
{
// ok
success = true;
}
}
transcoder.Close();
}
return(success);
}
public void Dispose()
{
if (this.inputMediaBuffer != null)
{
this.inputMediaBuffer.Dispose();
this.inputMediaBuffer = null;
}
this.outputBuffer.Dispose();
if (this.mp3Decoder != null)
{
this.mp3Decoder.Dispose();
this.mp3Decoder = null;
}
}
protected override void Dispose(bool disposing)
{
if (this.inputMediaBuffer != null)
{
this.inputMediaBuffer.Dispose();
this.inputMediaBuffer = null;
}
this.outputBuffer.Dispose();
if (this.dmoResampler != null)
{
this.dmoResampler = null;
}
base.Dispose(disposing);
}
/// <summary>
/// Dispose of this obejct and clean up resources
/// </summary>
public void Dispose()
{
if (inputMediaBuffer != null)
{
inputMediaBuffer.Dispose();
inputMediaBuffer = null;
}
outputBuffer.Dispose();
if (mp3Decoder != null)
{
mp3Decoder.Dispose();
mp3Decoder = null;
}
}
private void SetupSampleBuffer(MfVideoArgs args)
{
logger.Debug("SetupSampleBuffer(...)");
int width = args.Width;
int height = args.Height;
//if (width % 2 != 0)
//{// должно быть четным...
// width++;
//}
//if (height % 2 != 0)
//{
// height++;
//}
Format format = MfTool.GetDXGIFormatFromVideoFormatGuid(args.Format);
if (format == Format.Unknown)
{
throw new NotSupportedException("Format not suppored " + args.Format);
}
var _descr = new Texture2DDescription
{
Format = format,
Width = width,
Height = height,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1 },
};
bufTexture = new Texture2D(device, _descr);
MediaBuffer mediaBuffer = null;
try
{
MediaFactory.CreateDXGISurfaceBuffer(typeof(Texture2D).GUID, bufTexture, 0, false, out mediaBuffer);
bufSample = MediaFactory.CreateSample();
bufSample.AddBuffer(mediaBuffer);
}
finally
{
mediaBuffer?.Dispose();
}
}
/// <summary>
/// Dispose
/// </summary>
/// <param name="disposing">True if disposing (not from finalizer)</param>
protected override void Dispose(bool disposing)
{
if (inputMediaBuffer != null)
{
inputMediaBuffer.Dispose();
inputMediaBuffer = null;
}
outputBuffer.Dispose();
if (resampler != null)
{
//resampler.Dispose(); s
resampler = null;
}
base.Dispose(disposing);
}
/// <summary>
/// GenerateNext is called by the Generator base class when the next sample should be read.
/// </summary>
/// <param name="previous">Time of previous sample.</param>
/// <returns>Time for current sample.</returns>
protected override DateTime GenerateNext(DateTime previous)
{
DateTime originatingTime = default(DateTime);
int streamIndex = 0;
SourceReaderFlags flags = SourceReaderFlags.None;
long timestamp = 0;
Sample sample = this.sourceReader.ReadSample(SourceReaderIndex.AnyStream, 0, out streamIndex, out flags, out timestamp);
if (sample != null)
{
originatingTime = this.start + TimeSpan.FromTicks(timestamp);
MediaBuffer buffer = sample.ConvertToContiguousBuffer();
int currentByteCount = 0;
int maxByteCount = 0;
IntPtr data = buffer.Lock(out maxByteCount, out currentByteCount);
if (streamIndex == this.imageStreamIndex)
{
using (var sharedImage = ImagePool.GetOrCreate(this.videoWidth, this.videoHeight, Imaging.PixelFormat.BGR_24bpp))
{
sharedImage.Resource.CopyFrom(data);
this.Image.Post(sharedImage, originatingTime);
}
}
else if (streamIndex == this.audioStreamIndex)
{
AudioBuffer audioBuffer = new AudioBuffer(currentByteCount, this.waveFormat);
Marshal.Copy(data, audioBuffer.Data, 0, currentByteCount);
this.Audio.Post(audioBuffer, originatingTime);
}
buffer.Unlock();
buffer.Dispose();
sample.Dispose();
}
if (flags == SourceReaderFlags.Endofstream)
{
return(DateTime.MaxValue); // Used to indicated there is no more data
}
if (originatingTime <= previous)
{
return(previous + TimeSpan.FromTicks(1)); // To enforce strictly increasing times for the generator
}
return(originatingTime);
}
public DmoMp3FrameDecompressor(WaveFormat sourceFormat)
{
this.mp3Decoder = new WindowsMediaMp3Decoder();
if (!this.mp3Decoder.MediaObject.SupportsInputWaveFormat(0, sourceFormat))
{
throw new ArgumentException("Unsupported input format");
}
this.mp3Decoder.MediaObject.SetInputWaveFormat(0, sourceFormat);
this.pcmFormat = new WaveFormat(sourceFormat.SampleRate, sourceFormat.Channels);
if (!this.mp3Decoder.MediaObject.SupportsOutputWaveFormat(0, this.pcmFormat))
{
throw new ArgumentException(string.Format("Unsupported output format {0}", this.pcmFormat));
}
this.mp3Decoder.MediaObject.SetOutputWaveFormat(0, this.pcmFormat);
this.inputMediaBuffer = new MediaBuffer(sourceFormat.AverageBytesPerSecond);
this.outputBuffer = new DmoOutputDataBuffer(this.pcmFormat.AverageBytesPerSecond);
}
private static BitmapSource CreateBitmapSource(MediaBuffer contiguousBuffer, int frameWidth, int frameHeight)
{
try
{
var thumbnailBuffer = contiguousBuffer.Lock(out _, out var thumbnailBufferSize);
return(BitmapSource.Create(
frameWidth,
frameHeight,
96,
96,
PixelFormats.Bgr32, null, thumbnailBuffer, thumbnailBufferSize, frameWidth * 4));
}
finally
{
contiguousBuffer.Unlock();
}
}
static void PrintNalus(MediaBuffer buffer)
{
// This parsing code assumes that MediaBuffer contains
// a single Access Unit of one or more complete NAL Units
while (buffer.DataSize > 1)
{
int dataOffset = buffer.DataOffset;
int dataSize = buffer.DataSize;
// is this a NALU with a 3 byte start code prefix
if (dataSize >= 3 &&
0x00 == buffer.Start[dataOffset + 0] &&
0x00 == buffer.Start[dataOffset + 1] &&
0x01 == buffer.Start[dataOffset + 2])
{
PrintNaluHeader(buffer.Start[dataOffset + 3]);
// advance in the buffer
buffer.SetData(dataOffset + 3, dataSize - 3);
}
// OR is this a NALU with a 4 byte start code prefix
else if (dataSize >= 4 &&
0x00 == buffer.Start[dataOffset + 0] &&
0x00 == buffer.Start[dataOffset + 1] &&
0x00 == buffer.Start[dataOffset + 2] &&
0x01 == buffer.Start[dataOffset + 3])
{
PrintNaluHeader(buffer.Start[dataOffset + 4]);
// advance in the buffer
buffer.SetData(dataOffset + 4, dataSize - 4);
}
else
{
// advance in the buffer
buffer.SetData(dataOffset + 1, dataSize - 1);
}
// NOTE: Some NALUs may have a trailing zero byte. The `while`
// condition `buffer->dataSize() > 1` will effectively
// skip the trailing zero byte.
}
}
/// <summary>
/// Initializes a new instance of the DMO MP3 Frame decompressor
/// </summary>
/// <param name="sourceFormat"></param>
public DmoMp3FrameDecompressor(WaveFormat sourceFormat)
{
this.mp3Decoder = new WindowsMediaMp3Decoder();
if (!mp3Decoder.MediaObject.SupportsInputWaveFormat(0, sourceFormat))
{
throw new ArgumentException("Unsupported input format");
}
mp3Decoder.MediaObject.SetInputWaveFormat(0, sourceFormat);
pcmFormat = new WaveFormat(sourceFormat.SampleRate, sourceFormat.Channels); // 16 bit
if (!mp3Decoder.MediaObject.SupportsOutputWaveFormat(0, pcmFormat))
{
throw new ArgumentException(String.Format("Unsupported output format {0}", pcmFormat));
}
mp3Decoder.MediaObject.SetOutputWaveFormat(0, pcmFormat);
// a second is more than enough to decompress a frame at a time
inputMediaBuffer = new MediaBuffer(sourceFormat.AverageBytesPerSecond);
outputBuffer = new DmoOutputDataBuffer(pcmFormat.AverageBytesPerSecond);
}
private void Decode(byte[] nal, double time)
{
try
{
var encodedSample = MediaFactory.CreateSample();
try
{
using (MediaBuffer mb = MediaFactory.CreateMemoryBuffer(nal.Length))
{
var dest = mb.Lock(out int cbMaxLength, out int cbCurrentLength);
//logger.Debug(sampleCount + " Marshal.Copy(...) " + nal.Length);
Marshal.Copy(nal, 0, dest, nal.Length);
mb.CurrentLength = nal.Length;
mb.Unlock();
encodedSample.AddBuffer(mb);
if (!double.IsNaN(time))
{
var sampleTime = MfTool.SecToMfTicks(time); //(long)(time * 10_000_000);
encodedSample.SampleTime = sampleTime;
}
}
var res = decoder.ProcessSample(encodedSample, OnSampleDecoded);
if (!res)
{
//...
}
}
finally
{
encodedSample?.Dispose();
}
}
catch (Exception ex)
{
logger.Error(ex);
}
}
public BufferHelper(Sample sample, int sampleHeight)
{
buffer2D = null;
buffer = sample.ConvertToContiguousBuffer();
buffer2D = buffer.QueryInterfaceOrNull <SharpDX.MediaFoundation.Buffer2D>();
int length = 0, pitch = 0;
if (buffer2D != null)
{
byte[] arr = new byte[IntPtr.Size];
buffer2D.Lock2D(arr, out pitch);
length = buffer2D.ContiguousLength;
Data = new IntPtr(BitConverter.ToInt32(arr, 0));
}
else
{
int curlen;
Data = buffer.Lock(out length, out curlen);
pitch = length / sampleHeight;
}
Length = length;
Pitch = pitch;
}
public void ResamplerCanCallProcessOutput()
{
DmoResampler dmoResampler = new DmoResampler();
WaveFormat inputFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 2);
WaveFormat outputFormat = WaveFormat.CreateIeeeFloatWaveFormat(48000, 2);
dmoResampler.MediaObject.SetInputWaveFormat(0, inputFormat);
dmoResampler.MediaObject.SetOutputWaveFormat(0, outputFormat);
dmoResampler.MediaObject.AllocateStreamingResources();
using (MediaBuffer inputBuffer = new MediaBuffer(inputFormat.AverageBytesPerSecond))
{
inputBuffer.Length = inputFormat.AverageBytesPerSecond / 10;
Debug.WriteLine(String.Format("Input Length {0}", inputBuffer.Length));
dmoResampler.MediaObject.ProcessInput(0, inputBuffer, DmoInputDataBufferFlags.None, 0, 0);
Debug.WriteLine(String.Format("Input Length {0}", inputBuffer.Length));
Debug.WriteLine(String.Format("Input Lookahead {0}", dmoResampler.MediaObject.GetInputSizeInfo(0).MaxLookahead));
//Debug.WriteLine(String.Format("Input Max Latency {0}", resampler.MediaObject.GetInputMaxLatency(0)));
using (DmoOutputDataBuffer outputBuffer = new DmoOutputDataBuffer(outputFormat.AverageBytesPerSecond))
{
// one buffer for each output stream
dmoResampler.MediaObject.ProcessOutput(DmoProcessOutputFlags.None, 1, new DmoOutputDataBuffer[] { outputBuffer });
Debug.WriteLine(String.Format("Converted length: {0}", outputBuffer.Length));
Debug.WriteLine(String.Format("Converted flags: {0}", outputBuffer.StatusFlags));
//Assert.AreEqual((int)(inputBuffer.Length * 48000.0 / inputFormat.SampleRate), outputBuffer.Length, "Converted buffer length");
}
using (DmoOutputDataBuffer outputBuffer = new DmoOutputDataBuffer(48000 * 2 * 4))
{
// one buffer for each output stream
dmoResampler.MediaObject.ProcessOutput(DmoProcessOutputFlags.None, 1, new DmoOutputDataBuffer[] { outputBuffer });
Debug.WriteLine(String.Format("Converted length: {0}", outputBuffer.Length));
Debug.WriteLine(String.Format("Converted flags: {0}", outputBuffer.StatusFlags));
//Assert.AreEqual((int)(inputBuffer.Length * 48000.0 / inputFormat.SampleRate), outputBuffer.Length, "Converted buffer length");
}
}
dmoResampler.MediaObject.FreeStreamingResources();
}
protected void InitCom(WaveFormat inputformat, WaveFormat outputformat)
{
lock (_lockObj)
{
var source = BaseStream;
_resampler = new WMResampler();
MediaObject mediaObject = _resampler.MediaObject;
if (!mediaObject.SupportsInputFormat(0, inputformat))
{
throw new NotSupportedException("Inputformat not supported.");
}
mediaObject.SetInputType(0, inputformat);
if (!mediaObject.SupportsOutputFormat(0, outputformat))
{
throw new NotSupportedException("Outputformat not supported.");
}
mediaObject.SetOutputType(0, outputformat);
_inputBuffer = new MediaBuffer(inputformat.BytesPerSecond / 2);
_outputBuffer = new DmoOutputDataBuffer(outputformat.BytesPerSecond / 2);
}
}
internal void Initialize(WaveFormat inputformat, WaveFormat outputformat)
{
Ratio = (double)outputformat.BytesPerSecond / inputformat.BytesPerSecond;
lock (LockObj)
{
Resampler = new WMResampler();
MediaObject mediaObject = Resampler.MediaObject;
if (!mediaObject.SupportsInputFormat(0, inputformat))
{
throw new NotSupportedException("Inputformat not supported.");
}
mediaObject.SetInputType(0, inputformat);
if (!mediaObject.SupportsOutputFormat(0, outputformat))
{
throw new NotSupportedException("Outputformat not supported.");
}
mediaObject.SetOutputType(0, outputformat);
InputBuffer = new MediaBuffer(inputformat.BytesPerSecond / 2);
OutputBuffer = new DmoOutputDataBuffer(outputformat.BytesPerSecond / 2);
}
}
public void Encode(Texture2D texture)
{
// var device = encoder?.device;
if (device != null)
{
using (var sharedRes = texture.QueryInterface <SharpDX.DXGI.Resource>())
{
using (var sharedTexture = device.OpenSharedResource <Texture2D>(sharedRes.SharedHandle))
{
device.ImmediateContext.CopyResource(sharedTexture, bufTexture);
}
}
}
Sample inputSample = null;
try
{
MediaBuffer mediaBuffer = null;
try
{
MediaFactory.CreateDXGISurfaceBuffer(IID.D3D11Texture2D, bufTexture, 0, false, out mediaBuffer);
inputSample = MediaFactory.CreateSample();
inputSample.AddBuffer(mediaBuffer);
inputSample.SampleTime = 0;
inputSample.SampleDuration = 0;
}
finally
{
mediaBuffer?.Dispose();
}
if (processor != null)
{
Sample processedSample = null;
try
{
bool result = processor.ProcessSample(inputSample, out processedSample);
if (result)
{
encoder.ProcessSample(processedSample);
//EncodeSample(processedSample);
}
}
finally
{
processedSample?.Dispose();
}
}
else
{
encoder.ProcessSample(inputSample);
//EncodeSample(inputSample);
}
}
finally
{
inputSample?.Dispose();
}
}
/// <summary>
/// Reads a resampled sequence of bytes from the <see cref="DmoResampler" /> and advances the position within the
/// stream by the
/// number of bytes read.
/// </summary>
/// <param name="buffer">
/// An array of bytes. When this method returns, the <paramref name="buffer" /> contains the specified
/// byte array with the values between <paramref name="offset" /> and (<paramref name="offset" /> +
/// <paramref name="count" /> - 1) replaced by the bytes read from the current source.
/// </param>
/// <param name="offset">
/// The zero-based byte offset in the <paramref name="buffer" /> at which to begin storing the data
/// read from the current stream.
/// </param>
/// <param name="count">The maximum number of bytes to read from the current source.</param>
/// <returns>The total number of bytes read into the buffer.</returns>
public override int Read(byte[] buffer, int offset, int count)
{
lock (LockObj)
{
int read = 0;
while (read < count)
{
MediaObject mediaObject = Resampler.MediaObject;
if (mediaObject.IsReadyForInput(0))
{
var bytesToRead = (int)OutputToInput(count - read);
_readBuffer = _readBuffer.CheckBuffer(bytesToRead);
int bytesRead = base.Read(_readBuffer, 0, bytesToRead);
if (bytesRead <= 0)
{
break;
}
if (_disposed)
{
break;
}
if (InputBuffer.MaxLength < bytesRead)
{
InputBuffer.Dispose();
InputBuffer = new MediaBuffer(bytesRead);
}
InputBuffer.Write(_readBuffer, 0, bytesRead);
mediaObject.ProcessInput(0, InputBuffer);
OutputBuffer.Reset();
do
{
var outputBuffer = (MediaBuffer)OutputBuffer.Buffer;
if (outputBuffer.MaxLength < count)
{
outputBuffer.Dispose();
OutputBuffer.Buffer = new MediaBuffer(count);
}
OutputBuffer.Buffer.SetLength(0);
mediaObject.ProcessOutput(ProcessOutputFlags.None, new[] { OutputBuffer }, 1);
if (OutputBuffer.Length <= 0)
{
Debug.WriteLine("DmoResampler::Read: No data in output buffer.");
break;
}
OutputBuffer.Read(buffer, offset + read);
read += OutputBuffer.Length;
} while (/*_outputBuffer.DataAvailable*/ false); //todo: Implement DataAvailable
}
else
{
Debug.WriteLine("Case of not ready for input is not implemented yet."); //todo: .
}
}
return(read);
}
}
public bool NextAudioBuffer(byte[] buffer, ref int length)
{
if (_cancellationPending)
{
length = 0;
return(false);
}
lock (_csAVQueue)
{
int bytesWritten = 0;
while ((_audioQueue.Count > 0) && (bytesWritten < buffer.Length))
{
MediaSample mediaSample = _audioQueue.First.Value;
if (_unmanaged)
{
UnmanagedMediaBuffer mediaBuffer = mediaSample.UnmanagedBuffer;
int chunk = Math.Min(mediaBuffer.DataSize, buffer.Length - bytesWritten);
Marshal.Copy(mediaBuffer.DataPtr, buffer, bytesWritten, chunk);
bytesWritten += chunk;
mediaBuffer.Remove(chunk);
if (mediaBuffer.DataSize == 0)
{
mediaBuffer.Release();
_audioQueue.RemoveFirst();
}
}
else
{
MediaBuffer mediaBuffer = mediaSample.Buffer;
int chunk = Math.Min(mediaBuffer.DataSize, buffer.Length - bytesWritten);
Array.Copy(mediaBuffer.Start, mediaBuffer.DataOffset, buffer, bytesWritten, chunk);
bytesWritten += chunk;
{
int newDataOffset = mediaBuffer.DataOffset + chunk;
int newDataSize = mediaBuffer.DataSize - chunk;
if (0 == newDataSize)
{
newDataOffset = 0;
}
mediaBuffer.SetData(newDataOffset, newDataSize);
}
if (mediaBuffer.DataSize == 0)
{
_audioQueue.RemoveFirst();
}
}
}
length = bytesWritten;
}
return(true);
}
public void ProcessData(byte[] data, double time)
{
try
{
var encodedSample = MediaFactory.CreateSample();
try
{
using (MediaBuffer mb = MediaFactory.CreateMemoryBuffer(data.Length))
{
try
{
var dest = mb.Lock(out int cbMaxLength, out int cbCurrentLength);
Marshal.Copy(data, 0, dest, data.Length);
mb.CurrentLength = data.Length;
}
finally
{
mb.Unlock();
}
encodedSample.AddBuffer(mb);
}
if (!double.IsNaN(time) && time > 0)
{
// может глючить рендерер если метки будут кривые!!
// TODO: сделать валидацию вр.меток до декодера и после...
var sampleTime = MfTool.SecToMfTicks(time);
if (presentationAdjust == long.MaxValue)
{
var presentaionTime = presentationClock.Time;
presentationAdjust = presentaionTime - sampleTime;
}
encodedSample.SampleTime = sampleTime; // + presentationAdjust;
encodedSample.SampleDuration = 0; // MfTool.SecToMfTicks(0.033);
//logger.Debug(">>>>>>>>>>> " + sampleTime);
}
else
{
encodedSample.SampleTime = 0;
encodedSample.SampleDuration = 0;
}
//logger.Debug("ProcessData " + time);
var res = decoder.ProcessSample(encodedSample, OnSampleDecoded, OnMediaTypeChanged);
if (!res)
{
logger.Debug("decoder.ProcessSample() " + res);
//...
}
}
finally
{
encodedSample?.Dispose();
}
}
catch (Exception ex)
{
logger.Error(ex);
}
}
static bool DecodeJpeg(string inputFile, string outputFile)
{
int frameWidth, frameHeight;
if (!GetFrameSize(inputFile, out frameWidth, out frameHeight))
{
return(false);
}
Console.WriteLine("Input frame size: {0}x{1}", frameWidth, frameHeight);
// read input bytes
byte[] inputData;
try
{
inputData = System.IO.File.ReadAllBytes(inputFile);
}
catch (System.Exception e)
{
Console.WriteLine(e.ToString());
return(false);
}
DeleteFile(outputFile);
MediaSocket inSocket = createInputSocket(frameWidth, frameHeight);
MediaSocket outSocket = createOutputSocket(outputFile, frameWidth, frameHeight);
// create Transcoder
using (Transcoder transcoder = new Transcoder())
{
transcoder.AllowDemoMode = true;
transcoder.Inputs.Add(inSocket);
transcoder.Outputs.Add(outSocket);
bool res = transcoder.Open();
PrintError("Open Transcoder", transcoder.Error);
if (!res)
{
return(false);
}
MediaBuffer buffer = new MediaBuffer();
buffer.Attach(inputData, true);
MediaSample sample = new MediaSample();
sample.Buffer = buffer;
res = transcoder.Push(0, sample);
PrintError("Push Transcoder", transcoder.Error);
if (!res)
{
return(false);
}
transcoder.Flush();
transcoder.Close();
}
return(true);
}
public CoreAction Clone()
{
switch (Type)
{
case Types.CoreVersion:
return(CoreAction.CoreVersion(Ticks, Version));
case Types.KeyPress:
return(CoreAction.KeyPress(Ticks, KeyCode, KeyDown));
case Types.LoadDisc:
return(CoreAction.LoadDisc(Ticks, Drive, (MediaBuffer != null) ? (new MemoryBlob(MediaBuffer.GetBytes())) : null));
case Types.LoadTape:
return(CoreAction.LoadTape(Ticks, (MediaBuffer != null) ? (new MemoryBlob(MediaBuffer.GetBytes())) : null));
case Types.Reset:
return(CoreAction.Reset(Ticks));
case Types.RunUntil:
{
List <UInt16> samples = null;
if (AudioSamples != null)
{
samples = new List <UInt16>(AudioSamples);
}
return(CoreAction.RunUntil(Ticks, StopTicks, samples));
}
case Types.LoadCore:
return(CoreAction.LoadCore(Ticks, CoreState));
case Types.CreateSnapshot:
return(CoreAction.CreateSnapshot(Ticks, SnapshotId));
case Types.RevertToSnapshot:
return(CoreAction.RevertToSnapshot(Ticks, SnapshotId));
default:
return(null);
}
}
private void CleanupAndDispose()
{
if (currentBuffer != null)
{
currentBuffer.Unlock();
currentBuffer.Dispose();
currentBuffer = null;
}
if (currentSample != null)
{
currentSample.Dispose();
currentSample = null;
}
}
/// <summary>
/// Gets the decoded PCM samples. See remarks.
/// </summary>
/// <param name="startingPositionInSeconds">The starting position in seconds.</param>
/// <returns>An enumerator of pointer to PCM decoded data with the same format as returned by <see cref="WaveFormat"/>.</returns>
/// <remarks>
/// This method is only working as a single enumerator at a time.
/// The <see cref="SetSourceStream(System.IO.Stream)"/> must be set before calling <see cref="GetSamples()"/>
/// </remarks>
public IEnumerable<DataPointer> GetSamples(TimeSpan startingPositionInSeconds)
{
// A new reader is setup, so initialize it.
lock (sourceReaderLock)
{
// If the reader was changed
if (nextSourceReader != null)
{
if (sourceReader != null)
sourceReader.Dispose();
sourceReader = nextSourceReader;
nextSourceReader = null;
}
}
// Make sure that any prior call
CleanupAndDispose();
CheckIfDisposed();
// Set the position
sourceReader.SetCurrentPosition((long)(startingPositionInSeconds.TotalSeconds * 1e7));
while (true)
{
int streamIndex;
SourceReaderFlags flags;
long time;
CheckIfDisposed();
using (currentSample = sourceReader.ReadSample(SourceReaderIndex.FirstAudioStream, SourceReaderControlFlags.None, out streamIndex, out flags, out time))
{
if ((flags & SourceReaderFlags.Endofstream) != 0)
break;
CheckIfDisposed();
using (currentBuffer = currentSample.ConvertToContiguousBuffer())
{
int bufferMaxLength;
int bufferCurrentLength;
CheckIfDisposed();
var ptr = currentBuffer.Lock(out bufferMaxLength, out bufferCurrentLength);
yield return new DataPointer(ptr, bufferCurrentLength);
// Warning, because the yield could never return here, currentBuffer and currentSample should be disposed when disposing this object or when
// calling it again on the GetSamples method.
// In case a Dispose occured while decoding
if (currentBuffer == null)
break;
currentBuffer.Unlock();
}
}
}
// They have been disposed, so we can just clear them
currentBuffer = null;
currentSample = null;
}
