| | 5 | |
| | 6 | >not, if the encoder knows/guarantees that I-frames are actual keyframes |
| | 7 | |
| | 8 | Yes, in HEVC/AVC if closed GOP you just tag I frames that start the GOP as key frames, but then if open it is often the case that I frame is not a key frame. In practive even two I frames one after another in presentation order or decoding order are possible... |
| | 9 | |
| | 10 | I know the case where even with closed (sic!!) GOP the decoding starts with two B frames in presentation order that only depend on 1 future pts I frame. See here: https://forum.doom9.org/showthread.php?p=2004952#post2004952 |
| | 11 | |
| | 12 | This whole topic is one big trip... |
