[FFmpeg-trac] #7526(undetermined:new): VAAPI HEVC Encoder Bitrate parameter no longer works in Master compared to 4.0.x
FFmpeg
trac at avcodec.org
Wed Oct 31 22:49:29 EET 2018
#7526: VAAPI HEVC Encoder Bitrate parameter no longer works in Master compared to
4.0.x
-------------------------------------+-------------------------------------
Reporter: jlsantiago0 | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: vaapi hevc | Blocked By:
encode rate control | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
In FFMPEG v4.0.2 you could use the -b:v parameter to set the target
bitrate. And the Video output would reflect the bitrate specified on the
commandline. That no longer works in git-master. You get rougly the same
output no matter what you set for the bitrate.
How to reproduce:
{{{
ffmpeg -vaapi_device /dev/dri/renderD128 -i
/mnt/share/content/yuv/lp/SVT_Park_joy_FR6001_7000_1920x1080p50.avi.yuv.y4m
-vf 'format=nv12,hwupload' -c:v hevc_vaapi -b:v 2M -g 30 -bf 2 test-vaapi-
2m.hevc
ffmpeg -vaapi_device /dev/dri/renderD128 -i
/mnt/share/content/yuv/lp/SVT_Park_joy_FR6001_7000_1920x1080p50.avi.yuv.y4m
-vf 'format=nv12,hwupload' -c:v hevc_vaapi -b:v 4M -g 30 -bf 2 test-vaapi-
4m.hevc
ffmpeg version N-92314-g323c2cfd38
Manjaro Linux.
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7526>
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