Page 1 of 1

GOP step error for some MKV streams

Posted: Tue Jun 14, 2022 9:12 am
by Rocky
For some MKV streams a GOP step produces a corrupted picture.

We have a workaround for streams with successive IDR frames with the same idr_pic_id, but this was being applied only for ES streams. When applying it to all container types, the problem is fixed.

I will release this along with the MKV re-design work.

GOP step error for some MKV streams

Posted: Mon Jun 20, 2022 9:12 am
by Rocky
Turns out this is not related to successive IDRs with the same idr_pic_id, and I imagined that it was fixed. Nevertheless that should be fixed. The real reason was very complex and difficult to find but I found it!

GOP step error for some MKV streams

Posted: Thu Jun 23, 2022 10:30 am
by Rocky
After I got forward stepping working reliably I found that backward stepping was hosed. Reliable GOP navigation is important to set accurate project ranges, of course. Anyway, I just got that fixed this morning and as I mentioned in another post will release a candidate version very soon, maybe today.