#7100 closed enhancement (invalid)
Can "Loaded Nvenc version 8.1" now be 9.1 ?
| Reported by: | hydra3333 | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | build system |
| Version: | git-master | Keywords: | Nvenc |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
When I use the nvidia NVENC encoder in a recently-compiled ffmpeg (NV headers copied from https://git.videolan.org/git/ffmpeg/nv-codec-headers.git), like this
ffmpeg.exe -hide_banner -v verbose -strict -1 -init_hw_device opencl=ocl:1.0 -filter_hw_device ocl -threads 0 -i "G:\test\test01.mp3.MP4.mp4" -threads 0 -sws_flags lanczos+accurate_rnd+full_chroma_int+full_chroma_inp -filter_complex "[0:v]yadif=0:0:0,hwupload,unsharp_opencl=lx=3:ly=3:la=0.5:cx=3:cy=3:ca=0.5,hwdownload" -c:v hevc_nvenc -pix_fmt yuv420p -profile:v main -level 5.1 -preset slow -rc vbr_hq -cq 26 -rc-lookahead 32 -spatial_aq 1 -color_range tv -colorspace bt470bg -c:a libfdk_aac -cutoff 18000 -ab 384k -ar 48000 -threads 0 -movflags +faststart -y "G:\test\test01.mp3.MP4.h265.mp4"
it says this
Press [q] to stop, ? for help
[h264 @ 000001a10307f680] Reinit context to 720x576, pix_fmt: yuv420p
[graph 0 input from stream 0:0 @ 000001a17fbe0480] w:720 h:576 pixfmt:yuv420p tb:1/25000 fr:25/1 sar:64/45 sws_param:flags=2
[hevc_nvenc @ 000001a10307a740] Loaded Nvenc version 8.1
[hevc_nvenc @ 000001a10307a740] Nvenc initialized successfully
[hevc_nvenc @ 000001a10307a740] 1 CUDA capable devices found
[hevc_nvenc @ 000001a10307a740] [ GPU #0 - < GeForce GTX 1050 Ti > has Compute SM 6.1 ]
[hevc_nvenc @ 000001a10307a740] supports NVENC
[hevc_nvenc @ 000001a10307a740] AQ enabled.
[hevc_nvenc @ 000001a10307a740] Lookahead enabled: depth 32, scenecut enabled, B-adapt disabled.
which seems to indicate ffmpeg is using Nvenc version 8.1 ?
The latest driver "Nvidia Version 391.24 WHQL" Release Notes says
Software Module Versions
- nView - 148.92
- HD Audio Driver - 1.3.36.6
- NVIDIA PhysX System Software - 9.17.0524
- GeForce Experience - 3.13.1.30
- CUDA - 9.1
which seems to imply that support for Nvenc version 9.1 exists ?
What changes need to be made in order for 9.1 to be built into ffmpeg and/or invoked on the commandline ?
Thank you.
Change History (4)
comment:1 by , 7 years ago
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
comment:2 by , 7 years ago
OK, although the readme from that site says:
FFmpeg version of headers required to interface with Nvidias codec APIs.
Corresponds to Video Codec SDK version 8.0.14.
Minimum required driver versions:
Linux: 378.13 or newer
Windows: 378.66 or newer
which is an older version of the sdk. I'd hoped there was an official repository somewhere.
comment:4 by , 7 years ago
EEk, so it is. Sorry.
I've re-joined nvidia site and will check it there form time to time.
Thank you.
NVENC is not CUDA, and FFmpeg will automatically use the version the driver reports. There is nothing that needs doing anytime NVIDIA releases a new driver.