public string this[string AttrName]
{
get
{
WMHeaderInfo head = new WMHeaderInfo(HeaderInfo);
try
{
return(head[AttrName].Value.ToString());
}
catch (COMException e)
{
if (e.ErrorCode == WM.ASF_E_NOTFOUND)
{
return(null);
}
else
{
throw (e);
}
}
}
}
private void Init(WaveFormat OutputFormat)
{
m_outputNumber = GetAudioOutputNumber(m_reader);
if (m_outputNumber == InvalidOuput)
{
throw new ArgumentException("An audio stream was not found");
}
int[] FormatIndexes = GetPCMOutputNumbers(m_reader, (uint)m_outputNumber);
if (FormatIndexes.Length == 0)
{
throw new ArgumentException("An audio stream was not found");
}
if (OutputFormat != null)
{
m_outputFormatNumber = -1;
for (int i = 0; i < FormatIndexes.Length; i++)
{
WaveFormat fmt = GetOutputFormat(m_reader, (uint)m_outputNumber, (uint)FormatIndexes[i]);
if (// (fmt.wFormatTag == OutputFormat.wFormatTag) &&
(fmt.AverageBytesPerSecond == OutputFormat.AverageBytesPerSecond) &&
(fmt.BlockAlign == OutputFormat.BlockAlign) &&
(fmt.Channels == OutputFormat.Channels) &&
(fmt.SampleRate == OutputFormat.SampleRate) &&
(fmt.BitsPerSample == OutputFormat.BitsPerSample))
{
m_outputFormatNumber = FormatIndexes[i];
m_outputFormat = fmt;
break;
}
}
if (m_outputFormatNumber < 0)
{
throw new ArgumentException("No PCM output found");
}
}
else
{
m_outputFormatNumber = FormatIndexes[0];
m_outputFormat = GetOutputFormat(m_reader, (uint)m_outputNumber, (uint)FormatIndexes[0]);
}
uint OutputCtns = 0;
m_reader.GetOutputCount(out OutputCtns);
ushort[] StreamNumbers = new ushort[OutputCtns];
WMT_STREAM_SELECTION[] StreamSelections = new WMT_STREAM_SELECTION[OutputCtns];
for (uint i = 0; i < OutputCtns; i++)
{
m_reader.GetStreamNumberForOutput(i, out StreamNumbers[i]);
if (i == m_outputNumber)
{
StreamSelections[i] = WMT_STREAM_SELECTION.WMT_ON;
m_outputStream = StreamNumbers[i];
m_reader.SetReadStreamSamples(m_outputStream, false);
}
else
{
StreamSelections[i] = WMT_STREAM_SELECTION.WMT_OFF;
}
}
m_reader.SetStreamsSelected((ushort)OutputCtns, StreamNumbers, StreamSelections);
IWMOutputMediaProps Props = null;
m_reader.GetOutputFormat((uint)m_outputNumber, (uint)m_outputFormatNumber, out Props);
m_reader.SetOutputProps((uint)m_outputNumber, Props);
uint Size = 0;
Props.GetMediaType(IntPtr.Zero, ref Size);
IntPtr buffer = Marshal.AllocCoTaskMem((int)Size);
try
{
WM_MEDIA_TYPE mt;
Props.GetMediaType(buffer, ref Size);
mt = (WM_MEDIA_TYPE)Marshal.PtrToStructure(buffer, typeof(WM_MEDIA_TYPE));
m_sampleSize = mt.lSampleSize;
}
finally
{
Marshal.FreeCoTaskMem(buffer);
Props = null;
}
m_seekable = false;
m_length = -1;
WMHeaderInfo head = new WMHeaderInfo(HeaderInfo);
try
{
m_seekable = (bool)head[WM.g_wszWMSeekable];
// Yuval Naveh
ulong nanoDuration = (ulong)head[WM.g_wszWMDuration];
m_duration = new TimeSpan((long)nanoDuration);
m_length = SampleTime2BytePosition(nanoDuration);
}
catch (COMException e)
{
if (e.ErrorCode != WM.ASF_E_NOTFOUND)
{
throw (e);
}
}
}
private void Init(WaveFormat OutputFormat)
{
m_outputNumber = GetAudioOutputNumber(m_reader);
if (m_outputNumber == InvalidOuput)
{
throw new ArgumentException("An audio stream was not found");
}
int[] FormatIndexes = GetPCMOutputNumbers(m_reader, (uint)m_outputNumber);
if (FormatIndexes.Length == 0)
{
throw new ArgumentException("An audio stream was not found");
}
if (OutputFormat != null)
{
m_outputFormatNumber = -1;
for (int i = 0; i < FormatIndexes.Length; i++)
{
WaveFormat fmt = GetOutputFormat(m_reader, (uint)m_outputNumber, (uint)FormatIndexes[i]);
if (// (fmt.wFormatTag == OutputFormat.wFormatTag) &&
(fmt.AverageBytesPerSecond == OutputFormat.AverageBytesPerSecond) &&
(fmt.BlockAlign == OutputFormat.BlockAlign) &&
(fmt.Channels == OutputFormat.Channels) &&
(fmt.SampleRate == OutputFormat.SampleRate) &&
(fmt.BitsPerSample == OutputFormat.BitsPerSample))
{
m_outputFormatNumber = FormatIndexes[i];
m_outputFormat = fmt;
break;
}
}
if (m_outputFormatNumber < 0)
{
throw new ArgumentException("No PCM output found");
}
}
else
{
m_outputFormatNumber = FormatIndexes[0];
m_outputFormat = GetOutputFormat(m_reader, (uint)m_outputNumber, (uint)FormatIndexes[0]);
}
uint OutputCtns = 0;
m_reader.GetOutputCount(out OutputCtns);
ushort[] StreamNumbers = new ushort[OutputCtns];
WMT_STREAM_SELECTION[] StreamSelections = new WMT_STREAM_SELECTION[OutputCtns];
for (uint i = 0; i < OutputCtns; i++)
{
m_reader.GetStreamNumberForOutput(i, out StreamNumbers[i]);
if (i == m_outputNumber)
{
StreamSelections[i] = WMT_STREAM_SELECTION.WMT_ON;
m_outputStream = StreamNumbers[i];
m_reader.SetReadStreamSamples(m_outputStream, false);
}
else
{
StreamSelections[i] = WMT_STREAM_SELECTION.WMT_OFF;
}
}
m_reader.SetStreamsSelected((ushort)OutputCtns, StreamNumbers, StreamSelections);
IWMOutputMediaProps Props = null;
m_reader.GetOutputFormat((uint)m_outputNumber, (uint)m_outputFormatNumber, out Props);
m_reader.SetOutputProps((uint)m_outputNumber, Props);
uint Size = 0;
Props.GetMediaType(IntPtr.Zero, ref Size);
IntPtr buffer = Marshal.AllocCoTaskMem((int)Size);
try
{
WM_MEDIA_TYPE mt;
Props.GetMediaType(buffer, ref Size);
mt = (WM_MEDIA_TYPE)Marshal.PtrToStructure(buffer, typeof(WM_MEDIA_TYPE));
m_sampleSize = mt.lSampleSize;
}
finally
{
Marshal.FreeCoTaskMem(buffer);
Props = null;
}
m_seekable = false;
m_length = -1;
WMHeaderInfo head = new WMHeaderInfo(HeaderInfo);
try
{
m_seekable = (bool)head[WM.g_wszWMSeekable];
// Yuval Naveh
ulong nanoDuration = (ulong)head[WM.g_wszWMDuration];
m_duration = new TimeSpan((long)nanoDuration);
m_length = SampleTime2BytePosition(nanoDuration);
}
catch (COMException e)
{
if (e.ErrorCode != WM.ASF_E_NOTFOUND)
{
throw (e);
}
}
}
public string this[string AttrName]
{
get
{
WMHeaderInfo head = new WMHeaderInfo(HeaderInfo);
try
{
return head[AttrName].Value.ToString();
}
catch (COMException e)
{
if (e.ErrorCode == WM.ASF_E_NOTFOUND)
{
return null;
}
else
{
throw (e);
}
}
}
}
