Esempio n. 1
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        protected CaptureGraph(FilterInfo fiSource)
        {
            try
            {
                // Fgm initialization
                fgm   = new FilgraphManagerClass();
                iFG   = (IFilterGraph)fgm;
                iGB   = (IGraphBuilder)fgm;
                rotID = FilterGraph.AddToRot(iGB);

                // Create source filter and initialize it
                source = (SourceFilter)Filter.CreateFilter(fiSource);
                iGB.AddFilter(source.BaseFilter, source.FriendlyName);
                source.AddedToGraph(fgm);

                // Pass flags to the RtpRenderer filter from the config file.
                this.rtpRendererFlags = 0;
                string setting = ConfigurationManager.AppSettings[AppConfig.MDS_RtpRendererFlags];
                if (!String.IsNullOrEmpty(setting))
                {
                    if (!byte.TryParse(setting, out rtpRendererFlags))
                    {
                        rtpRendererFlags = 0;
                    }
                }
            }
            catch (Exception)
            {
                Cleanup();
                throw;
            }
        }
Esempio n. 2
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        private void Cleanup()
        {
            if (fgm != null)
            {
                fgm.Stop();
                FilterGraph.RemoveAllFilters(fgm);
                FilterGraph.RemoveFromRot(rotID);

                iGB = null;
                iFG = null;
                fgm = null;
            }

            DisposeSource();
            DisposeCompressor();
            DisposeRenderer();
        }
Esempio n. 3
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        protected CaptureGraph(FilterInfo fiSource)
        {
            try
            {
                // Fgm initialization
                fgm   = new FilgraphManagerClass();
                iFG   = (IFilterGraph)fgm;
                iGB   = (IGraphBuilder)fgm;
                rotID = FilterGraph.AddToRot(iGB);

                // Create source filter and initialize it
                source = (SourceFilter)Filter.CreateFilter(fiSource);
                iGB.AddFilter(source.BaseFilter, source.FriendlyName);
                source.AddedToGraph(fgm);
            }
            catch (Exception)
            {
                Cleanup();
                throw;
            }
        }
Esempio n. 4
0
        /// <summary>
        /// Removes all filters from the graph, starting at the end and working
        /// back to but not including "start"
        /// </summary>
        public void RemoveFiltersDownstreamFrom(Filter start)
        {
            if (start == null)
            {
                string msg = "Null is not a valid value for parameter 'start'";

                Debug.Fail(msg);
                throw new ArgumentNullException("start", msg);
            }

            if (start != source && start != compressor)
            {
                string msg = "The 'start' parameter must be either the 'source' or 'compressor' filter";

                Debug.Fail(msg);
                throw new ArgumentOutOfRangeException("start", msg);
            }


            Stop();

            foreach (IBaseFilter iBF in FilterGraph.FiltersInGraph(iFG))
            {
                if (iBF == start.BaseFilter)
                {
                    // We're done if we are back to the start filter
                    break;
                }

                iFG.RemoveFilter(iBF);
            }

            DisposeRenderer();

            if (start == source)
            {
                DisposeCompressor();
            }
        }