/// <returns>Ticks, NO BYTES!</returns>
private long WriteBlock(byte[] buffer, int offset, int count, int streamIndex, long positionInTicks, int sourceBytesPerSecond)
{
int bytesToWrite = count;
using (MFMediaBuffer mfBuffer = new MFMediaBuffer(MediaFoundationCore.CreateMemoryBuffer(bytesToWrite)))
{
using (MFSample sample = new MFSample(MediaFoundationCore.CreateEmptySample()))
{
sample.AddBuffer(mfBuffer);
int currentLength, maxLength;
IntPtr bufferPtr = mfBuffer.Lock(out maxLength, out currentLength);
long ticks = BytesToNanoSeconds(count, sourceBytesPerSecond);
Marshal.Copy(buffer, offset, bufferPtr, count);
mfBuffer.SetCurrentLength(count);
mfBuffer.Unlock();
sample.SetSampleTime(positionInTicks);
sample.SetSampleDuration(ticks);
_sinkWriter.WriteSample(_streamIndex, sample);
return(ticks);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MFMediaBuffer"/> class with the specified maximum <paramref name="size"/>.
/// </summary>
/// <param name="size">The size of the <see cref="MFMediaBuffer"/> in bytes. The specified <paramref name="size"/> will be the <see cref="MaxLength"/> of the constructed <see cref="MFMediaBuffer"/>.</param>
/// <remarks>The caller needs to release the allocated memory by disposing the <see cref="MFMediaBuffer"/>.</remarks>
public MFMediaBuffer(int size)
: this(MediaFoundationCore.CreateMemoryBuffer(size))
{
}