[linux-dvb] I-Frame Detection

Manu Abraham abraham.manu at gmail.com
Thu Oct 4 18:06:20 CEST 2007


Thomas Lagemann wrote:
> Hi there,
> this is a bit off-topic since it is not a really linux-specific
> question, but maybe someone does know this right away.
> I'm lookig for a way to recognize the type of a video-frame in MPEG-2
> (I.P or B) to create smooth transitions between video files, without
> having to decode the whole frame. I looked through the MPEG-2 TS and PES
> definitions, but all i found was a splicing_point_falg in the TS
> Adaptation Field. Unfortunately the hardware-encoder i'm working with
> doesn't seem to set these flags.
> 
> Does anybody know another way how to determin the frame type?

Not that i can help you much, but what you are looking at is available in 13818-2 AFAICT.

Regards,
Manu




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