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Here is a code snippet from DirectShowNet library, used to open a video file:
this.graphBuilder = (IGraphBuilder) new FilterGraph();
// Have the graph builder construct its the appropriate graph automatically
hr = this.graphBuilder.RenderFile(filename, null);
but the RenderFile method fails. At the same time, Windows Media Player opens the same file nicely. What can be the problem.
I got the same behavior without DirectShowNet, but using native C++ code…
As Geraint Davies pointed in the comment: “Graphedt’s Render File menu option calls RenderFile. If these are behaving differently, then perhaps you are running in different environments (eg x64 vs x86 or admin vs non-admin).”…actually the problem was not architecture or privileges, but some other part of the code related to seeking in the video, which was not performed well on the video that I have tested with.