Hi to all, I would like to encode MPEG-2 video with closed GOP of 12 frames, and a structure like IBBPBBPBBPBB. For doing this, I am using these options : *-g 12* to set the GOP size *-bf 2* to set the max B frames between reference frames *-flags +cgop* to use Closed GOP *-sc_threshold 1000000000* to disable scene change detection
However, the result is a GOP of 10 frames IBBPBBPBBP, with two missing B frames. How can I do to fix this ? Is there something missing ? It seems that a "strict_gop" parameter (or "sgop" flag) used to exist in former versions of ffmpe to enforce GOP size. Is there an equivalent nowadays ? Thanks. Valentin
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