Injector mechanism learns the incoming stream GOP structure based on the PTS/DTS pattern (from the first 7 incoming frames). If you have a different GOP structure, the detection will go wrong (Injector will decided that there are no B frames in the stream, though they are present) and the output stream will have severe artifacts and skipped frames. Increasing the detection default adds delay to the start of the live playback, and increases the memory usage, so we keep it as small as possible (for the vast majority of video content).

However, if this is the stream type you have, both SampleSynchronizerFilter.ini and ImpMpegMuxFilter.ini (which use the PTS/DTS mechanism) can increase this value using **.ini** file, by adding the following for each of them:

[Pts]

LearningDepth=9