Regarding changing Decklink output -> it is not configurable.
scale_npp=format=yuv444p is here because I tried to explicitly force the
first scaling to happen on cuda -> did not know that this format is
required by hw_upload, I thought it might be the yadif requirement. But it
did not help and
On 1/18/2021 9:57 AM, Bartosz Ziemski wrote:
Do you have any idea how to omit this scaling and get frames uploaded to
cuda device?
hwupload_cuda,
scale_npp=format=yuv444p, (why is that there?)
yadif_cuda,
scale_npp=w=1280:h=720:interp_algo=lanczos:format=yuv420p
I'm certainly not
On 1/18/2021 9:57 AM, Bartosz Ziemski wrote:
Do you have any idea how to omit this scaling and get frames uploaded to
cuda device?
That (pix format) _may_ be configurable on the Decklink, but I can't check
that at the moment.
z!
___
ffmpeg-user
Thank you.
Do you have any idea how to omit this scaling and get frames uploaded to
cuda device? It seems that hw_upload_cuda needs yuv444p but maybe there
exists another way to do it without the initial scaling performed on CPU
and do the scaling before next filters already on GPU.
Best regards,
I think this may be the reason (and I may be wrong)-
[2021-01-15T10:32:56.818] [auto_scaler_0 @ 0x5654058cefc0]
w:1920 h:1080 fmt:uyvy422 sar:0/1
->
w:1920 h:1080 fmt:yuv444p sar:0/1
If the decklink is emitting uyvy422-
Stream #0:1, 2, 1/100: Video: rawvideo, 1 reference frame (UYVY /
The filter "auto_scaler_0" according to the following logs fragment:
[2021-01-15T10:32:56.817] [auto_scaler_0 @ 0x5654058cefc0] Setting 'flags'
to value 'bicubic'
[2021-01-15T10:32:56.817] [auto_scaler_0 @ 0x5654058cefc0] w:iw h:ih
flags:'bicubic' interl:0
[2021-01-15T10:32:56.817]
Am Do., 14. Jan. 2021 um 18:43 Uhr schrieb Bartosz Ziemski
:
> I am trying to save the Decklink input as a video file (applying specified
> below filters) and I am wondering why the extra filter is inserted.
Which filter?
Carl Eugen
___
ffmpeg-user
Command:
ffmpeg -f decklink -i decklink1 -map 0:v -vf
"hwupload_cuda,scale_npp=format=yuv444p,yadif_cuda,scale_npp=w=1280:h=720:interp_algo=lanczos:format=yuv420p"
-b:v
1k -vcodec h264_nvenc -delay 0 -preset llhq -g 5 -r 25 -map 0:a -c:a:0
aac -loglevel debug -f
tee "[f=hls:
On 1/14/2021 9:14 AM, Bartosz Ziemski wrote:
You can find the logs enclosed.
Please put the logs in the body of the email, including the complete command
used. (And remember not to top-post on this list.)
z!
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ffmpeg-user mailing list
Hi,
I am trying to save the Decklink input as a video file (applying specified
below filters) and I am wondering why the extra filter is inserted.
You can find the logs enclosed.
I would be really grateful if you could explain why the filter is auto
inserted there and if there is any option to
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