public static void LoadAndWaitForMPUrlSourceFilter(string url, OnlineVideos.MPUrlSourceFilter.IFilterStateEx filterStateEx)
{
//string url = ApplyMPUrlSourceFilterSiteUserSettings(_resourceAccessor.ResourcePathName);
int result = filterStateEx.LoadAsync(url);
if (result < 0)
{
throw new UPnPRendererExceptions("Loading URL async error: {0}", result);
}
WaitUntilReady(filterStateEx.IsStreamOpened, 1, "Check stream open error");
WaitUntilReady(filterStateEx.IsFilterReadyToConnectPins, 50, "IsFilterReadyToConnectPins error");
}
/// <summary>
/// This function can be called by a background thread. It finishes building the graph and
/// waits until the buffer is filled to the configured percentage.
/// If a filter in the graph requires the full file to be downloaded, the function will return only afterwards.
/// </summary>
/// <returns>true, when playback can be started</returns>
public bool BufferFile(Sites.SiteUtilBase siteUtil)
{
Thread renderPinsThread = null;
VideoRendererStatistics.VideoState = VideoRendererStatistics.State.VideoPresent; // prevents the BlackRectangle on first time playback
bool PlaybackReady = false;
IBaseFilter sourceFilter = null;
string sourceFilterName = null;
try
{
sourceFilterName = GetSourceFilterName(m_strCurrentFile);
int result = graphBuilder.FindFilterByName(sourceFilterName, out sourceFilter);
if (result != 0)
{
string errorText = DirectShowLib.DsError.GetErrorText(result);
if (errorText != null)
{
errorText = errorText.Trim();
}
Log.Instance.Warn("BufferFile : FindFilterByName returned '{0}'{1}", "0x" + result.ToString("X8"), !string.IsNullOrEmpty(errorText) ? " : (" + errorText + ")" : "");
return(false);
}
OnlineVideos.MPUrlSourceFilter.IFilterStateEx filterStateEx = sourceFilter as OnlineVideos.MPUrlSourceFilter.IFilterStateEx;
if (filterStateEx != null)
{
// MediaPortal IPTV filter and url source splitter
Log.Instance.Info("BufferFile : using 'MediaPortal IPTV filter and url source splitter' as source filter");
String url = OnlineVideos.MPUrlSourceFilter.UrlBuilder.GetFilterUrl(siteUtil, m_strCurrentFile);
Log.Instance.Info("BufferFile : loading url: '{0}'", url);
result = filterStateEx.LoadAsync(url);
if (result < 0)
{
throw new OnlineVideosException(FilterError.ErrorDescription(filterStateEx, result));
}
while (!this.BufferingStopped)
{
Boolean opened = false;
result = filterStateEx.IsStreamOpened(out opened);
if (result < 0)
{
throw new OnlineVideosException(FilterError.ErrorDescription(filterStateEx, result));
}
if (opened)
{
break;
}
Thread.Sleep(1);
}
// buffer before starting playback
bool filterConnected = false;
bool filterIsReadyToConnect = false;
percentageBuffered = 0.0f;
long total = 0, current = 0, last = 0;
while (!PlaybackReady && graphBuilder != null && !BufferingStopped)
{
result = ((IAMOpenProgress)sourceFilter).QueryProgress(out total, out current);
if ((result != 0) && (result != 0x00040260))
{
// 0x00040260 - VFW_S_ESTIMATED - correct state, but value is estimated
throw new OnlineVideosException(FilterError.ErrorDescription(filterStateEx, result));
}
result = filterStateEx.IsFilterReadyToConnectPins(out filterIsReadyToConnect);
if (result != 0)
{
throw new OnlineVideosException(FilterError.ErrorDescription(filterStateEx, result));
}
percentageBuffered = (float)current / (float)total * 100.0f;
// after configured percentage has been buffered, connect the graph
if (!filterConnected && (percentageBuffered >= PluginConfiguration.Instance.playbuffer || skipBuffering))
{
if (filterIsReadyToConnect)
{
result = filterStateEx.GetCacheFileName(out cacheFile);
if (result != 0)
{
throw new OnlineVideosException(FilterError.ErrorDescription(filterStateEx, result));
}
if (skipBuffering)
{
Log.Instance.Debug("Buffering skipped at {0}%", percentageBuffered);
}
filterConnected = true;
renderPinsThread = new Thread(delegate()
{
try
{
Log.Instance.Debug("BufferFile : Rendering unconnected output pins of source filter ...");
// add audio and video filter from MP Movie Codec setting section
AddPreferredFilters(graphBuilder, sourceFilter);
// connect the pin automatically -> will buffer the full file in cases of bad metadata in the file or request of the audio or video filter
DirectShowUtil.RenderUnconnectedOutputPins(graphBuilder, sourceFilter);
Log.Instance.Debug("BufferFile : Playback Ready.");
PlaybackReady = true;
}
catch (ThreadAbortException)
{
Thread.ResetAbort();
Log.Instance.Info("RenderUnconnectedOutputPins foribly aborted.");
}
catch (Exception ex)
{
Log.Instance.Warn(ex.Message);
StopBuffering();
}
})
{
IsBackground = true, Name = "OVGraph"
};
renderPinsThread.Start();
}
}
// log every percent
if (current > last && current - last >= (double)total * 0.01)
{
Log.Instance.Debug("Buffering: {0}/{1} KB ({2}%)", current / 1024, total / 1024, (int)percentageBuffered);
last = current;
}
// set the percentage to a gui property, formatted according to percentage, so the user knows very early if anything is buffering
string formatString = "###";
if (percentageBuffered == 0f)
{
formatString = "0.0";
}
else if (percentageBuffered < 1f)
{
formatString = ".00";
}
else if (percentageBuffered < 10f)
{
formatString = "0.0";
}
else if (percentageBuffered < 100f)
{
formatString = "##";
}
GUIPropertyManager.SetProperty("#OnlineVideos.buffered", percentageBuffered.ToString(formatString, System.Globalization.CultureInfo.InvariantCulture));
Thread.Sleep(50); // no need to do this more often than 20 times per second
}
}
else
{
Marshal.ThrowExceptionForHR(((IFileSourceFilter)sourceFilter).Load(m_strCurrentFile, null));
Log.Instance.Info("BufferFile : using unknown filter as source filter");
if (sourceFilter is IAMOpenProgress && !m_strCurrentFile.Contains("live=true") && !m_strCurrentFile.Contains("RtmpLive=1"))
{
// buffer before starting playback
bool filterConnected = false;
percentageBuffered = 0.0f;
long total = 0, current = 0, last = 0;
do
{
result = ((IAMOpenProgress)sourceFilter).QueryProgress(out total, out current);
Marshal.ThrowExceptionForHR(result);
percentageBuffered = (float)current / (float)total * 100.0f;
// after configured percentage has been buffered, connect the graph
if (!filterConnected && (percentageBuffered >= PluginConfiguration.Instance.playbuffer || skipBuffering))
{
//cacheFile = filterState.GetCacheFileName();
if (skipBuffering)
{
Log.Instance.Debug("Buffering skipped at {0}%", percentageBuffered);
}
filterConnected = true;
renderPinsThread = new Thread(delegate()
{
try
{
Log.Instance.Debug("BufferFile : Rendering unconnected output pins of source filter ...");
// add audio and video filter from MP Movie Codec setting section
AddPreferredFilters(graphBuilder, sourceFilter);
// connect the pin automatically -> will buffer the full file in cases of bad metadata in the file or request of the audio or video filter
DirectShowUtil.RenderUnconnectedOutputPins(graphBuilder, sourceFilter);
Log.Instance.Debug("BufferFile : Playback Ready.");
PlaybackReady = true;
}
catch (ThreadAbortException)
{
Thread.ResetAbort();
Log.Instance.Info("RenderUnconnectedOutputPins foribly aborted.");
}
catch (Exception ex)
{
Log.Instance.Warn(ex.Message);
StopBuffering();
}
})
{
IsBackground = true, Name = "OVGraph"
};
renderPinsThread.Start();
}
// log every percent
if (current > last && current - last >= (double)total * 0.01)
{
Log.Instance.Debug("Buffering: {0}/{1} KB ({2}%)", current / 1024, total / 1024, (int)percentageBuffered);
last = current;
}
// set the percentage to a gui property, formatted according to percentage, so the user knows very early if anything is buffering
string formatString = "###";
if (percentageBuffered == 0f)
{
formatString = "0.0";
}
else if (percentageBuffered < 1f)
{
formatString = ".00";
}
else if (percentageBuffered < 10f)
{
formatString = "0.0";
}
else if (percentageBuffered < 100f)
{
formatString = "##";
}
GUIPropertyManager.SetProperty("#OnlineVideos.buffered", percentageBuffered.ToString(formatString, System.Globalization.CultureInfo.InvariantCulture));
Thread.Sleep(50); // no need to do this more often than 20 times per second
}while (!PlaybackReady && graphBuilder != null && !BufferingStopped);
}
else
{
// add audio and video filter from MP Movie Codec setting section
AddPreferredFilters(graphBuilder, sourceFilter);
// connect the pin automatically -> will buffer the full file in cases of bad metadata in the file or request of the audio or video filter
DirectShowUtil.RenderUnconnectedOutputPins(graphBuilder, sourceFilter);
percentageBuffered = 100.0f; // no progress reporting possible
GUIPropertyManager.SetProperty("#TV.Record.percent3", percentageBuffered.ToString());
PlaybackReady = true;
}
}
}
catch (ThreadAbortException)
{
Thread.ResetAbort();
}
catch (OnlineVideosException)
{
throw;
}
catch (COMException comEx)
{
Log.Instance.Warn(comEx.ToString());
string errorText = DirectShowLib.DsError.GetErrorText(comEx.ErrorCode);
if (errorText != null)
{
errorText = errorText.Trim();
}
if (!string.IsNullOrEmpty(errorText))
{
throw new OnlineVideosException(errorText);
}
}
catch (Exception ex)
{
Log.Instance.Warn(ex.ToString());
}
finally
{
if (sourceFilter != null)
{
// the render pin thread was already started and is still runnning
if (renderPinsThread != null && (renderPinsThread.ThreadState & ThreadState.Stopped) == 0)
{
// buffering was stopped by the user -> abort the thread
if (BufferingStopped)
{
renderPinsThread.Abort();
}
}
// playback is not ready but the source filter is already downloading -> abort the operation
if (!PlaybackReady)
{
Log.Instance.Info("Buffering was aborted.");
if (sourceFilter is IAMOpenProgress)
{
((IAMOpenProgress)sourceFilter).AbortOperation();
}
Thread.Sleep(100); // give it some time
int result = graphBuilder.RemoveFilter(sourceFilter); // remove the filter from the graph to prevent lockup later in Dispose
}
// release the COM pointer that we created
DirectShowUtil.ReleaseComObject(sourceFilter);
}
}
return(PlaybackReady);
}
