2008/8/27 Stas Oskin <[EMAIL PROTECTED]>: > Hi. > > > Thanks for the explanation, I presume you used it with analogue > content (Interlaced), and with large bitrates? > > About gop_size, I might be wrong of course, but doesn't it set the > interval of sending intra-frame? > > So if it set it to 25 (over 10 like in example), doesn't it actually > causes FFMPEG to produce less intra-frames, and thus leaving more to > prediction, and to resulting in-accuracy/lesser quality?
Normally when using b-frames in MPEG-4 Part 2 one would use a gop size of ~10*frame rate. As I recall, Michael recommended: -mbd 2 -cmp 2 -subcmp 2 -flags +trell So whatever that maps to in libavcodec/utils.c Rob _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
