[FFmpeg-devel] [PATCH] H264 parser merge fields

Ivan Schreter schreter
Thu Jul 2 23:24:10 CEST 2009


Baptiste Coudurier wrote:
> $subject,
> Now we have correct frame rate for TS.
> I'm not sure unpaired fields happens in the wild, and if it does we will
> fix when the time comes. Situation should be really better now.
I'm doing some experiments with read_seek2 implementation in mpegts, so 
here some thought regarding seeking (in general):

Although there are no unpaired fields in the video file, it can happen 
that generic seeking routine positions the stream to the second field of 
a video frame coded as two frames in mpeg ts format (field pictures). 
Reading frames (on format/parser level) from this position on might 
cause problems (both in old and new seeking routines), since you are 
starting with unpaired second field.

Just my 2c...



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