w any noticeable difference in transcoding performance.
From c95adcf7d5f5dd787eaa80fa4643e7868f85848e Mon Sep 17 00:00:00 2001
From: Roman Arzumanyan
Date: Tue, 14 Sep 2021 14:03:24 +0300
Subject: [PATCH] nvenc: copy incoming HW frame instead of referencing
---
libavcodec/nvenc.c | 5 +
1
This is a good point, let me check and come back later.
От: Timo Rothenpieler
Отправлено: 28 сентября 2021 г. 21:28
Кому: FFmpeg development discussions and patches ;
Roman Arzumanyan
Копия: Yogender Gupta ; Ricardo Monteiro
Тема: Re: [FFmpeg-devel] [PATCH
your approach is obviously safer and illustrates better API usage.
От: Timo Rothenpieler
Отправлено: Вторник, 28 сентября, 2021 22:11
Кому: FFmpeg development discussions and patches; Roman Arzumanyan
Копия: Yogender Gupta; Ricardo Monteiro
Тема: Re: [FFmpeg-devel] [
Thanks for review, Timo.
Please find revised patch attached.
(de)interlacing is now removed, doc entry was added as well.
От: Timo Rothenpieler
Отправлено: 28 сентября 2021 г. 22:58
Кому: FFmpeg development discussions and patches ;
Roman Arzumanyan
Копия
discussions and patches ;
Roman Arzumanyan
Копия: Yogender Gupta ; Ricardo Monteiro
Тема: Re: [FFmpeg-devel] [PATCH] avfilter: add scale2ref_npp video filter
External email: Use caution opening links or attachments
From c8a7fa9c564049ca48a95b0fb315dc904e84a4b0 Mon Sep 17 00:00:00 2001
From: Roman
mpeg-devel] [PATCH] avfilter: add scale2ref_npp video filter
External email: Use caution opening links or attachments
Roman Arzumanyan:
> Thanks for the review, Timo.
>
> Please find revised patch attached.
> Docstring was added, trailing spaces removed, commit message brushed up.
> Av
nal email: Use caution opening links or attachments
Roman Arzumanyan:
> Thanks for the review, Timo.
>
> Please find revised patch attached.
> Docstring was added, trailing spaces removed, commit message brushed up.
> Avfilter minor version bump added.
This has lots of duplication
LTS releases would be a superb option for corporate FFMpeg users.
От: ffmpeg-devel от имени Michael Niedermayer
Отправлено: 6 октября 2021 г. 12:57
Кому: FFmpeg development discussions and patches
Тема: [FFmpeg-devel] next release
External email: Use caution o
Hello,
This patch adds NPP transpose filter.
Cmd example:
ffmpeg.exe -hwaccel cuvid -c:v h264_cuvid -i input.mp4 -vf transpose_npp="t=3"
-c:v h264_nvenc -y output_transpose_npp.mp4
Supported values:
t=0 no transpose
t=1 90 deg clockwise
t=2 180 deg clockwise
t=3 270 deg clockwise
--
pieler
Sent: Monday, September 3, 2018 1:43 PM
To: FFmpeg development discussions and patches ; Roman
Arzumanyan
Cc: Yogender Gupta
Subject: Re: [FFmpeg-devel] [PATCH] avfilter/vf_transpose adding NPP transpose
filter
Minus the missing configure dependency, documentation entry and minor b
Hello,
This patch adds NV12 support to vf_transpose_npp filter.
Now filter can be used in nvdec -> nvenc transcoding scenarios like this:
ffmpeg -hwaccel cuvid -c:v h264_cuvid -i input.h264 -c:v h264_nvenc -vf
transpose_npp="dir=clock" -y output.h264
--
BR, Rom
h264_nvenc -preset medium \
-cq 10 -y output_cq10.mp4
Before the patch, both output_cq30.mp4 and output_cq10.mp4 were of same size.
After the patch, output_cq10.mp4 file has higher quality and bigger size.
--
BR, Roman Arzumanyan
This fixes bug in my previous patch which was discarding maxBitrate.
CQ mode shall honor maxBitrate value if it's set by user via CLI.
How to check:
./ffmpeg.exe \
-i big_buck_bunny_1080p_h264.mov \
-c:v h264_nvenc \
-cq 10 \
-maxrate 10M \
-y output_cq10_10M.mp4
--
BR,
nce frames will be determined by encoder, but it will
not exceed value of "nb_ref_frames" option.
--
BR, Roman Arzumanyan
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eler
Sent: Friday, September 27, 2019 12:56 PM
To: FFmpeg development discussions and patches ; Roman
Arzumanyan
Cc: Yogender Gupta
Subject: Re: [FFmpeg-devel] [PATCH] avcodec/nvenc: multiple reference frames
support
On 27/09/2019 11:04, Roman Arzumanyan wrote:
> Hello,
>
> This patch a
Hello,
Please find attached patch for nv-codec-headers.
It adds Video Codec SDK 9 support.
--
BR, Roman Arzumanyan
---
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contain
Hello,
Please find attached patch, it adds HEVC B-frames support to nvenc_hevc.
This feature requires Video Codec SDK 9 + Turing card.
--
BR, Roman Arzumanyan
---
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Hello,
Please find attached patch, it adds HEVC YUV444P decoding support.
Supported formats are AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10LE,
AV_PIX_FMT_YUV444P12LE.
This feature requires Video Codec SDK 9.
--
BR, Roman Arzumanyan
Hello world,
> [your idea here]
Fully async API which provides a means to receive a notification when a
frame is decoded / processed by filter etc. Be it a callback, conditional
variable etc.
чт, 18 апр. 2024 г. в 12:22, :
>
>
> On 18 Apr 2024, at 10:46, Stefano Sabatini wrote:
>
> > On date We
Hi Diego,
Asking for my own education.
As far as you've explained, the 8 > 10 bit conversion happens within the
driver, that's understandable.
But how does it influence the output? Does it perform some sort of
proprietary SDR > HDR conversion under the hood that maps the ranges?
What's gonna be th
es, it doesn't look
more tempting than, say, a similar 8>10 bit NPP up-conversion which shall
yield the same (presumably SoL) performance.
чт, 18 апр. 2024 г. в 16:32, Timo Rothenpieler :
> On 18/04/2024 14:29, Roman Arzumanyan wrote:
> > Hi Diego,
> > Asking for my own educat
--
BR, Roman Arzumanyan
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confidential information. Any unauthorized review, use, disclosure or
distribution
is prohibited
Please find attached the patch that introduces structure to store CUDA function
pointers to be used within scale & thumbnail filters.
--
BR, Roman Arzumanyan
---
This email message is for the sole use of
Hello,
This patch adds cuCtxGetCurrent function to nvcodec-headers repo.
Second patch of the group which adds FFmpeg option to use current CUDA
context depends on this.
0001-Add-cuCtxGetCurrent-function.patch
Description: Binary data
___
ffmpeg-devel m
Hello,
This is the second patch of the group which adds the option to use CUDA
context current to calling thread. It simplifies the usage of ffmpeg
libraries in applications which rely on CUDA runtime API.
Example:
AVDictionary *opts = NULL;
AVBufferRef *hwDeviceCtx;
av_dict_set(&opts, "curre
Thanks for the swift reply Timo, you're right about versioning.
However, I didn't find any existing CUDA API versioning macro unlike that
for Video Codec SDK API.
So I basically did the same thing as that in previous commit to
nvcodec-headers which barely adds new function pointer...
Anyway, I too
nfig ffnvcodec "ffnvcodec >= 8.1.24.14 ffnvcodec < 8.2"
"$ffnv_hdr_list" ""
fi
To me it looks like any ffnvcodec package of version in range between
8.1.24.14 and 12.1.14.0 will pass this check.
чт, 14 сент. 2023 г. в 18:04, Timo Rothenpieler :
> On 1
Hello,
Any updates on this patch?
чт, 14 сент. 2023 г. в 19:52, Roman Arzumanyan :
> Got it, thanks.
> Please find the patches in attachment.
>
> Just for my own understanding - could you please explain how this magic
> works in the configure script? I mean this section:
&g
Hello,
In my previous patch which introduced the AV_CUDA_USE_CURRENT_CONTEXT
feature I unintentionally made a mistake of not checking this flag when
uninitializing the CUDA.
It was causing cuda_device_uninit() function to destroy the CUDA context it
didn't create.
So far it only reproduces under
Hello,
This patch adds AV1 decoding support for av1_cuvid stand-alone decoder. It
requires Ampere GPU.
--
BR, Roman Arzumanyan
0001-AV1-nvcuvid-support.patch
Description: 0001-AV1-nvcuvid-support.patch
___
ffmpeg-devel mailing list
ffmpeg-devel
From 2b15d8a609a12d97b1ba7500c7f8771b336e2fdf Mon Sep 17 00:00:00 2001
From: Roman Arzumanyan
Date: Sat, 10 Sep 2022 11:05:56 +0300
Subject: [PATCH] libavfilter/vf_colorrange_cuda CUDA-accelerated color range
conversion filter
---
configure | 2 +
libavfilter/Makefile
Thanks for the detailed review, Timo.
Please find fixed patch in attachement.
От: ffmpeg-devel от имени Timo Rothenpieler
Отправлено: 10 сентября 2022 г. 16:16
Кому: FFmpeg development discussions and patches ;
Roman Arzumanyan
Копия: Yogender Gupta ; Sven
need for this patch ?
Applications that rely on libavcodec will have a chance to calculate the
proper amount of vRAM required to store a reconstructed video frame before
decoding begins.
From ae80b12d10a4de4aa96a4670b72accbfc5a87631 Mon Sep 17 00:00:00 2001
From: Roman Arzumanyan
Date: Thu, 1 Aug
ubmit v.2 of the patch.
чт, 1 авг. 2024 г. в 21:14, Timo Rothenpieler :
> On 01.08.2024 15:54, Roman Arzumanyan wrote:
> > Hello world,
> >
> > This patch adds a pixel format guess based on probed bit depth.
> > With current FFMpeg ToT, when the cuvid codec is opened,
Hello world,
Please find v2 of the previous patch attached.
Both bit depth and chroma sampling (420 and 444 as supported by Nvdec) are
now taken into account when selecting sw_pix_fmt.
From a0c0c8497e75987ae771a466c9f0fce5c3ef106c Mon Sep 17 00:00:00 2001
From: Roman Arzumanyan
Date: Thu, 1 Aug
24 г. в 16:57, Timo Rothenpieler :
> On 02/08/2024 15:31, Roman Arzumanyan wrote:
> > Hello world,
> >
> > Please find v2 of the previous patch attached.
> > Both bit depth and chroma sampling (420 and 444 as supported by Nvdec)
> are
> > now taken into accoun
Hello,
This patch adds Video Codec SDK 10 features support:
* Presets and tuning info
* Multipass encode modes
* Low Delay Key Frame Scale
0001-Adding-SDK10-features-support.patch
Description: 0001-Adding-SDK10-features-support.patch
___
f
to have very solid
background.
От: Soft Works
Отправлено: 30 июня 2020 г. 17:35
Кому: FFmpeg development discussions and patches ;
Roman Arzumanyan
Копия: Yogender Gupta
Тема: RE: [FFmpeg-devel] [PATCH] avcodec/nvenc: Video Codec SDK 10 features
support
External emai
2001
From: Roman Arzumanyan
Date: Mon, 6 Sep 2021 14:26:27 +0300
Subject: [PATCH] sharpen_npp video filter added
---
configure| 5 +-
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_sharpen_npp.c | 530
7 00:00:00 2001
From: Roman Arzumanyan
Date: Mon, 6 Sep 2021 15:25:51 +0300
Subject: [PATCH] scale2ref_npp filter added
---
libavfilter/allfilters.c | 1 +
libavfilter/vf_scale_npp.c | 531 +++--
2 files changed, 509 insertions(+), 23 deletions(-)
diff
18d4583750ef250a78d9 Mon Sep 17 00:00:00 2001
From: Roman Arzumanyan
Date: Thu, 1 Jun 2023 11:17:39 +0300
Subject: [PATCH] libavcodec/cuviddec: determine DPB size from within cuvid
parser
---
libavcodec/cuviddec.c | 29 +++--
1 file changed, 27 insertions(+), 2 deleti
ior intact. Do I miss something?
пн, 5 июн. 2023 г. в 13:19, Anton Khirnov :
> Quoting Roman Arzumanyan (2023-06-05 09:30:07)
> > Hello,
> >
> > This patch reduces vRAM usage by cuvid decoder implementation.
> > The number of surfaces used for decoding is updated within th
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