RX 5700 support b-frames?

Question

RX 5700 support b-frames?

stasko48 opened this issue 4 years ago · 6 comments

Using driver version 20.12.1. On the H264 encoder, although I cannot set any bitrate other than 0 or 1. There is an option for setting b frames in master view, which wasn't present on previous drivers other than 20.11.2. I tried recording a file, using CQP setting the B-Frame Period to 1. However, using avidemux, it does not show any b frames. Is it a bug?

Answer 1 · 2021-02-28T15:06:26.000Z

amf does not support b-frames. not for avc, not for hevc and doesn't matter what gpu you use.

Answer 2 · 2021-02-28T16:43:11.000Z

i always thought R9 380 and 380X and 385 support b-frames for AMD AMF VCE

Answer 3 · 2021-03-17T14:22:51.000Z

5700 NOT support B-frames.

Answer 4 · 2022-07-08T11:34:08.000Z

B-Frame support has been added a couple months ago, now OBS needs to support it.
Source: https://www.tomshardware.com/news/amd-amf-encoder-quality-boost

Answer 5 · 2022-07-08T15:20:02.000Z

B-Frame support has been added a couple months ago, now OBS needs to support it. Source: https://www.tomshardware.com/news/amd-amf-encoder-quality-boost

obsproject/obs-studio#6508
As you can see, a new amf plugin for obs is being worked on. But B-frames is only for Rdna2 gpus (6000series)