On Tue, Mar 09, 2021 at 07:38:09AM +0100, Anders Degerberg wrote:
> On Tue, Mar 9, 2021 at 4:52 AM Peter White wrote:
>
> > Just an aside, you need to specifiy the -sws_flags like this:
> > -sws_flags bilinear+print_info
>
> Thanks Peter,
> unfortunately it does not seem to improve the yuv
On Tue, Mar 9, 2021 at 4:52 AM Peter White wrote:
> Just an aside, you need to specifiy the -sws_flags like this:
> -sws_flags bilinear+print_info
Thanks Peter,
unfortunately it does not seem to improve the yuv conversion speed,
still at about 0.6x. Some output below:
- snip -
[graph 0 input
I'm looking for a way to separate telecined sequences from the rest of a video. The following is one
idea.
The 'fieldmatch' filter favors telecined sequences [1]. I want it to drop telecined sequences and
pass the remaining frames (i.e. that are not telecined).
Is there any way to do that?
On Mon, Mar 08, 2021 at 09:46:22PM +0100, Anders Degerberg wrote:
> Hi, see output below:
> $ ffmpeg -loglevel verbose -f decklink -raw_format rgb10 -i "DeckLink
> 8K Pro (1)" -sws_flags bilinear -sws_flags print_info -c:v hevc_nvenc
> -an -b:v 30M -f null -
Just an aside, you need to specifiy
Am Mo., 8. März 2021 um 23:32 Uhr schrieb Anders Degerberg
:
>
> On Mon, Mar 8, 2021 at 10:44 PM Carl Eugen Hoyos wrote:
>
> > Just to make sure that our assumption that this would need
> > changes in libswscale is correct, please also test the following:
> > -pix_fmt yuv444p16 -vcodec rawvideo
On Mon, Mar 8, 2021 at 10:44 PM Carl Eugen Hoyos wrote:
> Just to make sure that our assumption that this would need
> changes in libswscale is correct, please also test the following:
> -pix_fmt yuv444p16 -vcodec rawvideo -an -f null -
> -i "Decklink ..." -an -f null -
> and compare the speed
https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
has two instructions in libdav1d and libvmaf resulting in error like:
meson.build:1:0: ERROR: The value of the 'bindir' option is '/home/user/bin'
which must be a subdir of the prefix '/home/user/ffmpeg_build'.
Obvious fix
Am Mo., 8. März 2021 um 21:46 Uhr schrieb Anders Degerberg
:
>
> Hi, see output below:
> $ ffmpeg -loglevel verbose -f decklink -raw_format rgb10 -i "DeckLink
> 8K Pro (1)" -sws_flags bilinear -sws_flags print_info -c:v hevc_nvenc
> -an -b:v 30M -f null -
Just to make sure that our assumption
Hi, see output below:
$ ffmpeg -loglevel verbose -f decklink -raw_format rgb10 -i "DeckLink
8K Pro (1)" -sws_flags bilinear -sws_flags print_info -c:v hevc_nvenc
-an -b:v 30M -f null -
ffmpeg version N-101405-g2570663 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10 (GCC)
On Mon, 8 Mar 2021 at 17:49, Anders Degerberg wrote:
> Hi,
>
> I've come across a problem I really can't figure out when trying to stream
> realtime a RGB 10-bit Decklink input, as YUV444 10-bit HEVC in 25fps.
> In a 1920x1080 resolution on the Decklink input, it all works very well,
> using
On Mon, Mar 08, 2021 at 07:58:44PM +0100, Anders Degerberg wrote:
> Hi Peter,
>
> On Mon, 8 Mar 2021 at 19:18, Peter White wrote:
> > Try:
> >
> > ffmpeg -i input_file -sws_flags show_info ... output_file
> '-sws_flags print_info' gives:
> [swscaler @ 0x4752f00] bicubic scaler, from gbrp10le to
Hi Peter,
On Mon, 8 Mar 2021 at 19:18, Peter White wrote:
> Try:
>
> ffmpeg -i input_file -sws_flags show_info ... output_file
'-sws_flags print_info' gives:
[swscaler @ 0x4752f00] bicubic scaler, from gbrp10le to yuv444p16le using MMXEXT
> Do you really have to use RGB on the Decklink? Seems
On Mon, Mar 08, 2021 at 03:19:46PM +0100, Anders Degerberg wrote:
> Hi,
>
> I've come across a problem I really can't figure out when trying to stream
> realtime a RGB 10-bit Decklink input, as YUV444 10-bit HEVC in 25fps.
> In a 1920x1080 resolution on the Decklink input, it all works very
Hi,
I've come across a problem I really can't figure out when trying to stream
realtime a RGB 10-bit Decklink input, as YUV444 10-bit HEVC in 25fps.
In a 1920x1080 resolution on the Decklink input, it all works very well,
using hevc_nvenc codec on a Nvidia GPU. Auto_scaler kicks in converting
Hi Guys
I am converting a udp input to a rtmp output, during playback, i could see
the live feed is delayed by almost 5 minutes, i am not sure if
*thread_queue_size* is causing this delay.
Can anyone help me in getting the default value for *thread_queue_size. *Any
recommendations on tuning the
I'm well on my way to creating a single, non-cosmetic, filter complex that will transcode any video
found on DVDs & BDs with excellent results and with zero combing & zero judder. The filters are
purely mechanical -- no blend, no blur, no yadif -- and with results that are far better than
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