![]() This only applies to H264, as HEVC rate control seems to be all over the place no matter what app I try it with and even settings things like max and min rate doesn't make it behave. Unfortunately I can't get vp9_qsv to work, because all the sample command line examples for vp9 encoding are for VAAPI, which uses a different syntax than QSV.Īdditionally, there is an ongoing rate control issue related to ffmpeg, I know it's related to ffmpeg because using QSV via Handbrake does not result the same ignoring of bit rate settings. It seems Intel has expanded vp9 encoding to QSV, meaning we may see it on Windows soon and perhaps even Handbrake. vp9_qsv VP9 video (Intel Quick Sync Video acceleration) (codec vp9) mpeg2_qsv MPEG-2 video (Intel Quick Sync Video acceleration) (codec mpeg2video) mjpeg_qsv MJPEG (Intel Quick Sync Video acceleration) (codec mjpeg) hevc_qsv HEVC (Intel Quick Sync Video acceleration) (codec hevc) h264_qsv H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration) (codec h264) AfterI built the latest ffmpeg source I found that ffmpeg listed the following QSV encoders: Starting with Kaby Lake, Quick Sync supported hardware VP8 and VP9 encoding, only on Linux and only via VAAPI. With Manjaro I was able to get ffmpeg+vaapi working, which I've done before so I ended up doing a bunch of test encodes, only to decide that I really wanted to get ffmpeg+qsv working, so I nuked that install and instead grabbed a copy of Ubuntu Mate 20.04 LTS, which I was planning on trying anyway.Īfter some trial and error, I grabbed the latest git for both ffmpeg and x264 and built both of them, after some more tinkering I found I had gotten ffmpeg+qsv working on Linux and I found a very interesting surprise. ![]() In the process, I ended up screwing up my Ubuntu 19 install, which wasn't that big a deal, I decided to try Manjaro. A number of things conspired to keep me away, not the least of which was I ended up going down a rabbit hole trying to get ffmpeg+qsv working on Linux. Forward: I don't want anyone thinking that I disappeared from the other thread, even though technically I did.
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