/// <summary>
/// Selects or deselects one or more streams.
/// </summary>
/// <param name="sourceReader">A valid IMFSourceReader instance.</param></param></param>
/// <param name="streamIndex">The stream to set.</param>
/// <param name="selected">Specify True to select streams or False to deselect streams. If a stream is deselected, it will not generate data.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult SetStreamSelection(this IMFSourceReader sourceReader, SourceReaderStreams streamIndex, bool selected)
{
if (sourceReader == null)
{
throw new ArgumentNullException("sourceReader");
}
return(sourceReader.SetStreamSelection((int)streamIndex, selected));
}
/// <summary>
/// Flushes one or more streams.
/// </summary>
/// <param name="sourceReader">A valid IMFSourceReader instance.</param></param>
/// <param name="streamIndex">The streamIndex(s) to flush.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult Flush(this IMFSourceReader sourceReader, SourceReaderStreams stream)
{
if (sourceReader == null)
{
throw new ArgumentNullException("sourceReader");
}
return(sourceReader.Flush((int)stream));
}
/// <summary>
/// Reads the next sample from the media source.
/// </summary>
/// <param name="sourceReader">A valid IMFSourceReader instance.</param></param></param>
/// <param name="streamIndex">The stream to pull data from.</param>
/// <param name="controlFlags">One or more members of the MF_SOURCE_READER_CONTROL_FLAG enumeration.</param>
/// <param name="actualStreamIndex">Receives the zero-based index of the stream.</param>
/// <param name="streamFlags">Receives one or more members of the MF_SOURCE_READER_FLAG enumeration.</param>
/// <param name="timestamp">Receives the time stamp of the sample, or the time of the stream event indicated in <paramref name="streamFlags"/>.</param>
/// <param name="sample">Receives an instance of the IMFSample interface or the value null.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult ReadSample(this IMFSourceReader sourceReader, SourceReaderStreams streamIndex, MF_SOURCE_READER_CONTROL_FLAG controlFlags, out int actualStreamIndex, out MF_SOURCE_READER_FLAG streamFlags, out TimeSpan timestamp, out IMFSample sample)
{
if (sourceReader == null)
{
throw new ArgumentNullException("sourceReader");
}
long tmp = 0;
HResult hr = sourceReader.ReadSample((int)streamIndex, controlFlags, out actualStreamIndex, out streamFlags, out tmp, out sample);
timestamp = hr.Succeeded() ? TimeSpan.FromTicks(tmp) : default(TimeSpan);
return(hr);
}
