>
> On 19 May 2025, at 03:01, George Welch via ffmpeg-user
> wrote:
>
> Howdy ffmpeg users.
>
> I have found a behavior that seems strange to me. The following two commands:
>
> $ ffmpeg -i input.mkv -an -c:v libx265 -preset slow -crf 21 output1.mkv
>
> and
>
> $ ffmpeg -i input.mkv -an
On 20/05/2025 18.44, Andrew Randrianasulu wrote:
вт, 20 мая 2025 г., 21:25 Mark Filipak :
On 16/05/2025 19.01, Andrew Randrianasulu wrote:
пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
c...@lists.cinelerra-gg.org>:
I made a forum post to keep track of the repository. So if a request
is m
Den 20.05.2025 18:27, skrev Carl Zwanzig:
On 5/19/2025 5:45 AM, Terje J. Hanssen wrote:
Now I am testing another backup method with purpose of best practical
video quality using ffmpeg to encode lossless compressed FFV1.mkv files:
Analog video camera/player --> S-video/HDMI converter --
вт, 20 мая 2025 г., 21:25 Mark Filipak :
> On 16/05/2025 19.01, Andrew Randrianasulu wrote:
> > пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
> c...@lists.cinelerra-gg.org>:
> >
> >> I made a forum post to keep track of the repository. So if a request
> >> is made we can direct to that post.
> >
On 20/05/2025 15.37, Erik Dobberkau wrote:
I wrote:
The CinGG CLUTs do everything in one step, so, no, IIRC you don't need to
tonemap because they tonemap. They take input yuv pixels from the input
colorspace and output yuv pixels in the output colorspace.
IIRC, the missing piece to map from
>
>>> BT2020_HDR_PQ_to_BT709.cube - this CLUT doesn't exist. That's Ultra
>>> Blu-ray HDR input to Blu-ray SDR
>>> output -- two colorspaces that are as common as dirt -- but such a CLUT
>>> doesn't exist!
>>>
>>> BT2020_HDR_PQ_to_.cube followed by _to_BT709.cube
>>> --
>>> being an
>>> intermedia
> That would be incorrect/limited/ colormatrix.
> colorspace is better, but not perfect.
>
>
You know this way better than I do -- I merely became sceptical due to the
high count of mentioned caveats and fixme comments. ;-)
Great to hear there is work underway to have a better solution sometime.
__
On 20/05/2025 14.28, Paul B Mahol wrote:
On Tue, May 20, 2025 at 6:25 PM Mark Filipak
wrote:
On 16/05/2025 19.01, Andrew Randrianasulu wrote:
пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
c...@lists.cinelerra-gg.org>:
I made a forum post to keep track of the repository. So if a request
On Tue, May 20, 2025 at 6:25 PM Mark Filipak
wrote:
> On 16/05/2025 19.01, Andrew Randrianasulu wrote:
> > пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
> c...@lists.cinelerra-gg.org>:
> >
> >> I made a forum post to keep track of the repository. So if a request
> >> is made we can direct to th
On 16/05/2025 19.01, Andrew Randrianasulu wrote:
пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin :
I made a forum post to keep track of the repository. So if a request
is made we can direct to that post.
https://www.cinelerra-gg.org/forum/help-video/francebb-luts-for-space-color-conversions/
On Tue, May 20, 2025 at 4:53 PM Erik Dobberkau
wrote:
> > yuv420p10le(tv,bt2020nc/bt2020/smpte2084)
> > \ \\ \
> > \ matrix \ transfer
> >range primaries
> > Is the above _always_ the correct interpretation of the order?
> >
>
> yuv420p10le(tv,bt2020nc/bt2020/smpte2084)
> \ \\ \
> \ matrix \ transfer
>range primaries
> Is the above _always_ the correct interpretation of the order?
>
> Here: https://ffmpeg.org/ffmpeg-filters.html#colorspace,
> 1) Does
On 5/19/2025 5:45 AM, Terje J. Hanssen wrote:
Now I am testing another backup method with purpose of best practical
video quality using ffmpeg to encode lossless compressed FFV1.mkv files:
Analog video camera/player --> S-video/HDMI converter --> HDMI/USB3
capture card --> v4l2 --> ffmpeg
Hello,
video recorded for 4/3 :
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, bt470bg, top first), *720x576 [SAR 16:15 DAR 4:3]*, 25 fps,
25 tbr, 90k tbn
(container ts).
What I want to have is something like that :
Stream #0:0[0x100]: Video: mpeg2video (
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