/// <summary>
/// Create the indicated <see cref="DVBRawFilter"/> from
/// <see cref="m_Filters"/>. If none exists a new one will
/// be created and added to the <see cref="Hashtable"/>.
/// </summary>
public DVBRawFilter this[ushort uPID]
{
get
{
// Synchronize
lock (m_Filters)
{
// Retrieve
DVBRawFilter pFilter;
if (!m_Filters.TryGetValue(uPID, out pFilter))
{
// Create
pFilter = new DVBRawFilter(uPID, m_Frontend);
// Remember
m_Filters[uPID] = pFilter;
// Report
ScanLog.WriteToScanLog("Adding Filter {0}", uPID);
}
// Report
return(pFilter);
}
}
}
/// <summary>
/// Remove a filter from the map.
/// </summary>
/// <param name="pid">The identifier of the stream.</param>
internal void RemoveFilter(ushort pid)
{
// Do it
lock (m_Filters)
{
// See if it exists
DVBRawFilter filter;
if (!m_Filters.TryGetValue(pid, out filter))
{
return;
}
// Process
using (filter)
m_Filters.Remove(pid);
// Report
ScanLog.WriteToScanLog("Filter {0} removed", pid);
}
}
/// <summary>
/// Calls <see cref="IDisposable.Dispose"/> on each entry in <see cref="m_Filters"/>
/// followed by a <see cref="Hashtable.Clear"/>.
/// </summary>
public void StopFilters()
{
// Copy
DVBRawFilter[] filters;
// Synchronize
lock (m_Filters)
{
// Copy over
filters = m_Filters.Values.ToArray();
// Reset
m_Filters.Clear();
// Report
ScanLog.WriteToScanLog("All Filters removed");
}
// Process all filters
foreach (var filter in filters)
{
filter.Dispose();
}
}
