Search found 18 matches

by red5goahead
Mon Mar 12, 2018 10:23 am
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

I know, usally I'm using this

ffmpeg -y -t 00:02:00 c:v h264_cuvid -i '.\Ferrari Challenge Mugello 458_raw.ts' -vf yadif=1,size=1920:1080 -c:v hevc_nvenc -c:a aac -preset slow out.mp4

I would to decode and encode by hw at all
by red5goahead
Mon Mar 12, 2018 9:05 am
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

thanks but yadif work already fine ffmpeg -y -t 00:02:00 c:v h264_cuvid -resize 1920x1080 -i '.\Ferrari Challenge Mugello 458_raw.ts' -vf yadif=1 -c:v hevc_nvenc -c:a aac -preset slow out.mp4 the question is about speed. with no hwaccel cuvid the speed is quite enough (about 3x) instead 10-11x and y...
by red5goahead
Fri Mar 09, 2018 5:17 pm
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

I'm trying with usual encoding commands

ffmpeg -y -t 00:02:00 -hwaccel cudiv -c:v h264_cuvid -deint adaptive -resize 1920x1080 -i '.\Ferrari Challenge Mugello 458_raw.ts' -c:v hevc_nvenc -c:a aac -preset slow out.mp4

but without success -resize is working . deinterlacing not
by red5goahead
Fri Mar 09, 2018 1:39 pm
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

so now with --enable-nvdec?

there is not a new h264_nvdec codec in the list (help full)
which is the difference with h264_cuvid decoder, now?
by red5goahead
Thu Mar 08, 2018 2:50 pm
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

ok.. it's quite hard to understand what we need to use nvidia decoding and encoding with all features including -deint x h264_cuvid AVOptions: -deint <int> .D.V.... Set deinterlacing mode (from 0 to 2) (default weave) weave .D.V.... Weave deinterlacing (do nothing) bob .D.V.... Bob deinterlacing ada...
by red5goahead
Thu Mar 08, 2018 2:17 pm
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

Image

Image

hope for hw de-interlace?
by red5goahead
Thu Jan 18, 2018 2:49 pm
Forum: Usage
Topic: -hwaccel DXVA2 is not working, ffmpeg crash
Replies: 0
Views: 572

-hwaccel DXVA2 is not working, ffmpeg crash

with -c:v h264_nvenc as decoder

Any tips?
by red5goahead
Wed Jan 03, 2018 10:26 pm
Forum: Usage
Topic: h264_nvenc , hevc_nvenc double pass
Replies: 0
Views: 437

h264_nvenc , hevc_nvenc double pass

Is it possible to use ffmpeg and these hw encoder with two pass? Seems not working (log empty)
by red5goahead
Wed Nov 29, 2017 11:50 am
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

the difference among 23 nov and 28 nov release is that a new hwaccels option in bold

cuda
dxva2
qsv
d3d11va
qsv
cuvid
by red5goahead
Tue Nov 28, 2017 2:55 pm
Forum: Suggestions
Topic: NVDEC
Replies: 29
Views: 11698

Re: NVDEC

Can anyone confirm that Nvdec is slower than cuvid? I tried several encoding using nvenc and h. 264 contextual decoding using cuvid and this nvdec, and found cuvid much faster.
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