Way to read SEI Message for Timecode

[lc204]

I'm using an encoder that has the picture timing SEI message enabled and adds custom timecode information in there. I'm trying to find the easiest way to get to that information so I know the start/end timecode for a video file. Does anyone have any suggestions? Should I be using Directshow with a decoder? Any help would be appreciated. Thanks.

[BingoWingo]

I solved this by my own DirectShow-Filter insterted in the decodergraph between demuxer and video decoder.
If a playback graph you could seek near end play shortly and you
get the timecode of the end!
Also you can get continously the timecode while decoding.