#8722: Video Encode engine used while decoding H264 stream in Radeon 5700XT
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Reporter: jakubkulaga | Type: defect
Status: new | Priority: normal
Component: | Version: 4.2
undetermined |
Keywords: dxva2 video | Blocked By:
decode encode |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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I'm testing hardware decompression of h264 stream using DXVA2 option in
modified hw_decode example. I've added only logs and I've removed saving
to file. Video stream resolution is 3840x2160, 59.94fps, yuv420p (but
resolution doesn't matter).
On Radeon 580 I'm observing, that in Task Manager Video Decode engine is
used for about 40%.
On Radeon 5700XT Task Manager shows Video Encode, instead of Decode and it
is used for about 60%.
Is it possible, that it is sth wrong in GPU driver? Driver version is
official, not optional.
ffmpeg (x64) version: (pre-built version)
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
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Ticket URL: <https://trac.ffmpeg.org/ticket/8722>
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