Am 01.12.2020 um 19:56 schrieb Michael Koch:
Hello,
there seem to be some problems in the v360 filter with "perspective"
output.
Tested with the latest Windows built, 2 days old. You can reproduce
this with any equirectangular input image.
ffmpeg -i equirectangular_test.png -
Hello,
there seem to be some problems in the v360 filter with "perspective" output.
Tested with the latest Windows built, 2 days old. You can reproduce this
with any equirectangular input image.
ffmpeg -i equirectangular_test.png -lavfi v360=e:perspective -y out1.png
The output of the above
Am 28.11.2020 um 22:09 schrieb Paul B Mahol:
Ok, made the wet option do actually apply gain to final output.
I think the asubboost block diagram does now look like this (view with
fixed width font):
IN -o> DRY ---> ADD -> WET -> OUT
|
Am 28.11.2020 um 19:18 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 5:18 PM Michael Koch
wrote:
Am 28.11.2020 um 14:48 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 2:46 PM Paul B Mahol wrote:
On Sat, Nov 28, 2020 at 2:24 PM Michael Koch <
astroelectro...@t-online.de>
wrote
Am 28.11.2020 um 14:48 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 2:46 PM Paul B Mahol wrote:
On Sat, Nov 28, 2020 at 2:24 PM Michael Koch
wrote:
Am 28.11.2020 um 13:44 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 1:35 PM Michael Koch <
astroelectro...@t-online.de>
wrote
Am 28.11.2020 um 13:44 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 1:35 PM Michael Koch
wrote:
Am 28.11.2020 um 12:57 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 12:41 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri,
Am 28.11.2020 um 12:57 schrieb Paul B Mahol:
On Sat, Nov 28, 2020 at 12:41 PM Michael Koch
wrote:
Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 8:24 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Am 27.11.2020 um 19:25 schrieb Paul B Mahol:
On Fri,
Am 27.11.2020 um 23:27 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 11:20 PM Michael Koch
wrote:
Am 27.11.2020 um 22:47 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 10:40 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri,
Am 27.11.2020 um 22:47 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 10:40 PM Michael Koch
wrote:
Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 8:24 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Am 27.11.2020 um 19:25 schrieb Paul B Mahol:
On Fri,
Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 8:24 PM Michael Koch
wrote:
Am 27.11.2020 um 19:25 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 7:09 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Hello,
I have a few questions about the asu
Am 27.11.2020 um 19:25 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 7:09 PM Michael Koch
wrote:
Hello,
I have a few questions about the asubboost and asupercut filters.
-- In asubboost it's not yet clear how the block diagram of the filter
looks like. Especially the "decay" and
Am 23.11.2020 um 16:14 schrieb Karl Messner:
Michael,
Thank you so much for your help. I made the changes you suggested and now I'm
getting this:
ffmpeg -report -i videos/intro720.mp4 -i videos/raw.mp4 -i videos/outro720.mp4 -i
videos/music.mp3 -filter_complex " \
Am 23.11.2020 um 13:50 schrieb KarlMessner:
Good morning folks,
Any idea what I'm doing wrong here:
/usr/local/bin/ffmpeg -report -i videos/intro720.mp4 -i videos/raw.mp4 -i
videos/outro720.mp4 -i videos/music.mp3 -filter_complex " \
[0]
Am 23.11.2020 um 13:50 schrieb KarlMessner:
Good morning folks,
Any idea what I'm doing wrong here:
/usr/local/bin/ffmpeg -report -i videos/intro720.mp4 -i videos/raw.mp4 -i
videos/outro720.mp4 -i videos/music.mp3 -filter_complex " \
[0]
Am 08.11.2020 um 18:12 schrieb ZEITFELD:
Hello nice girls ans guys!
I have a highspeed camera that records raw data to DNG files. Now I try
to have the fastest possible preview video of what is recorded. I
succeeded using the GPU via FFMPEG, which is absolutely the fastest way
I found until
Am 20.11.2020 um 11:59 schrieb RAPPAZ Francois via ffmpeg-user:
I think the command line is correct, and the hint from Gyan was of course
correct.
The problem might be that your video player can't display 25fps at this
extremely high resolution.
Try a smaller resolution. It makes no sense to
Am 20.11.2020 um 10:58 schrieb RAPPAZ Francois via ffmpeg-user:
Am 19.11.2020 um 16:37 schrieb RAPPAZ Francois via ffmpeg-user:
Hi
I tried the fading between pictures and cropping to there original
size (5152 x 3864), so that they are not distorted
ffmpeg -y -i %%02d.JPG -i
Am 20.11.2020 um 07:27 schrieb RAPPAZ Francois via ffmpeg-user:
Am 19.11.2020 um 16:37 schrieb RAPPAZ Francois via ffmpeg-user:
Hi
I tried the fading between pictures and cropping to there original
size (5152 x 3864), so that they are not distorted
ffmpeg -y -i %%02d.JPG -i
Am 19.11.2020 um 13:19 schrieb Paul B Mahol:
Added commands to despill and frei0r filters.
thank you! I'll test it in a few days when the Windows build is available.
Michael
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Am 19.11.2020 um 16:37 schrieb RAPPAZ Francois via ffmpeg-user:
Hi
I tried the fading between pictures and cropping to there original size (5152 x
3864), so that they are not distorted
ffmpeg -y -i %%02d.JPG -i SligoAir_WhiteBlanket.mp3 ^
-vf
Am 18.11.2020 um 16:37 schrieb RAPPAZ Francois via ffmpeg-user:
The problem is that your images 3 and 4 have different size. As far as I know, FFmpeg
can't combine images with different sizes to a slideshow (please correct me if I'm
>wrong). By the way, all images must also have the same pixel
Am 18.11.2020 um 14:40 schrieb Moritz Barsnick:
On Mon, Nov 16, 2020 at 20:15:54 +0100, Michael Koch wrote:
Oh, what a pity. We need more filters with support for commands. Now
that I have found out how to send zmq commands from C# code, there are
so many nice things that could be done
Am 18.11.2020 um 09:50 schrieb RAPPAZ Francois via ffmpeg-user:
I have 15 JPEG file to be used for a slide (duration: 135 sec): Each image is
display 9 seconds and without transition the mkv file is ok.
I tried this for a transition 1 second long
ffmpeg -y -framerate 1/9 -i %%02d.JPG -i
Am 17.11.2020 um 16:05 schrieb RAPPAZ Francois via ffmpeg-user:
I have 15 JPEG file to be used for a slide (duration: 135 sec): Each image is
display 9 seconds and without transition the mkv file is ok.
I tried this for a transition 1 second long
ffmpeg -y -framerate 1/9 -i %%02d.JPG -i
Am 17.11.2020 um 14:09 schrieb RAPPAZ Francois via ffmpeg-user:
Thanks that was it
And if I Would like to have each image shown during 15 seconds (I have 15
pictures and whants the total time being 225 sec), How should I specified the
-framerate and -r ? I tried
ffmpeg -y -f image2
Am 17.11.2020 um 11:50 schrieb RAPPAZ Francois via ffmpeg-user:
I'm on Windows 10 with ffmpeg ...
Then I tried with
ffmpeg -y -f image2 -framerate 8 -i "%02d.JPG" -i SligoAir_WhiteBlanket.mp3
-vsync vfr -pix_fmt yuv420p output.mkv
If you are starting this command line from a batch file,
Am 16.11.2020 um 20:01 schrieb Paul B Mahol:
Is it possible to send zmq messages to the despill filter? I want to
adjust the mix, expand and brightness parameters in real time. I'm
sending the zmq messages from my own C# program. Messages to colorkey
(color, similarity) and overlay (x, y) are
Am 16.11.2020 um 16:12 schrieb Paul B Mahol:
On Mon, Nov 16, 2020 at 12:41 PM Michael Koch
wrote:
Am 16.11.2020 um 12:22 schrieb Paul B Mahol:
On Mon, Nov 16, 2020 at 12:13 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
When I overlay a bluescreen foreground vide
Am 16.11.2020 um 16:12 schrieb Paul B Mahol:
On Mon, Nov 16, 2020 at 12:41 PM Michael Koch
wrote:
Am 16.11.2020 um 12:22 schrieb Paul B Mahol:
On Mon, Nov 16, 2020 at 12:13 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
When I overlay a bluescreen foreground vide
Am 16.11.2020 um 12:22 schrieb Paul B Mahol:
On Mon, Nov 16, 2020 at 12:13 PM Michael Koch
wrote:
When I overlay a bluescreen foreground video over a background video,
which is the best place for the despill filter? (a) before colorkey or
(b) after colorkey or (c) after overlay?
[foreground
When I overlay a bluescreen foreground video over a background video,
which is the best place for the despill filter? (a) before colorkey or
(b) after colorkey or (c) after overlay?
[foreground](a),colorkey,(b)[fg];[background][fg]overlay,(c)
I found here an example for (c) but I doubt that
Am 11.11.2020 um 21:59 schrieb Jim DeLaHunt:
2. Generate a more elaborate FFmpeg invocation which will generate
silent audio streams for input files which have none. The details of
this should be in a separate thread with a separate Subject: line.
That's an interesting question. Can this
Am 10.11.2020 um 22:27 schrieb Randy Johnson via ffmpeg-user:
Hello,
When running the following command:
```
ffmpeg \
-loop 1 -framerate 30 -t 1.4 -i /assets/img/filler640480.jpg -i 0d.mp4 -
y \
-loop 1 -framerate 30 -t 891.113 -i /assets/img/filler640480.jpg -i
9f.mp4 -y \
-f lavfi -t 0.1 -i
Am 01.11.2020 um 19:07 schrieb Carl Eugen Hoyos:
Am So., 1. Nov. 2020 um 11:03 Uhr schrieb Michael Koch
:
I'm using a cheap HDMI to USB converter for video input. The converter
supports different sizes and framerates and two different video codecs.
This command line works as expected:
ffplay
Hello,
I'm using a cheap HDMI to USB converter for video input. The converter
supports different sizes and framerates and two different video codecs.
This command line works as expected:
ffplay -f dshow -video_size 1920x1080 -framerate 30 -vcodec mjpeg
video="USB Video"
However for my
Am 30.10.2020 um 13:53 schrieb Moritz Barsnick:
Hallo Michael,
On Fri, Oct 30, 2020 at 01:29:04 +0100, Michael Koch wrote:
Is it possible to start FFplay (from a C# application) so that only the
video window is visible, while the console window is hidden or minimized?
That's more of a C
Is it possible to start FFplay (from a C# application) so that only the
video window is visible, while the console window is hidden or minimized?
Michael
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Am 28.10.2020 um 21:07 schrieb Gyan Doshi:
On 28-10-2020 12:21 am, Michael Koch wrote:
Hello,
I'm testing this command line which is copied from the documentation:
https://www.ffmpeg.org/ffmpeg-all.html#zmq_002c-azmq
ffplay -dumpgraph 1 -f lavfi
"color=s=100x100:c=red[l];color=s=100x
Am 23.10.2020 um 17:19 schrieb Michael Koch:
Hello,
It seems there is a problem in the v360 filter. This command line
doesn't rotate the correct point to the image center. The default
rotation order should be yaw pitch roll, which means after the
rotation the point with azimut 180
Hello,
I'm testing this command line which is copied from the documentation:
https://www.ffmpeg.org/ffmpeg-all.html#zmq_002c-azmq
ffplay -dumpgraph 1 -f lavfi
"color=s=100x100:c=red[l];color=s=100x100:c=blue[r];nullsrc=s=200x100,zmq[bg];[bg][l]overlay[bg+l];[bg+l][r]overlay@my=x=100"
The
Am 25.10.2020 um 16:23 schrieb Simon Roberts:
Greetings all,
I have just noticed that some of my video recordings have a few random
black frames in them. These will be spaced out a few minutes, don't seem to
have any obvious cause (though my recording system is a little Heath
Robinson / Rube
Am 25.10.2020 um 09:05 schrieb Michael Koch:
Am 25.10.2020 um 03:02 schrieb Edward Park:
Hi,
After a deeper look into the quaternion multiplication, it seems to
be correct. The terms are only written in a different order in the
Wikipedia article.
But it's a fact that the v360 rotations
Am 25.10.2020 um 03:02 schrieb Edward Park:
Hi,
After a deeper look into the quaternion multiplication, it seems to be correct.
The terms are only written in a different order in the Wikipedia article.
But it's a fact that the v360 rotations are broken, as can be shown by this
simple test:
Am 24.10.2020 um 11:03 schrieb Michael Koch:
Am 23.10.2020 um 18:46 schrieb Michael Koch:
Am 23.10.2020 um 17:19 schrieb Michael Koch:
Hello,
It seems there is a problem in the v360 filter. This command line
doesn't rotate the correct point to the image center. The default
rotation order
Am 23.10.2020 um 18:46 schrieb Michael Koch:
Am 23.10.2020 um 17:19 schrieb Michael Koch:
Hello,
It seems there is a problem in the v360 filter. This command line
doesn't rotate the correct point to the image center. The default
rotation order should be yaw pitch roll, which means after
Am 23.10.2020 um 17:19 schrieb Michael Koch:
Hello,
It seems there is a problem in the v360 filter. This command line
doesn't rotate the correct point to the image center. The default
rotation order should be yaw pitch roll, which means after the
rotation the point with azimut 180
Hello,
It seems there is a problem in the v360 filter. This command line
doesn't rotate the correct point to the image center. The default
rotation order should be yaw pitch roll, which means after the rotation
the point with azimut 180° and height +45° should be in the center. It
is nearby,
Am 21.10.2020 um 21:02 schrieb Michael Koch:
Am 21.10.2020 um 20:36 schrieb Paul B Mahol:
On Wed, Oct 21, 2020 at 08:14:50PM +0200, Michael Koch wrote:
Hi,
I'm just testing the new afreqshift filter.
In my first test I did use only *.wav audio files. This test was
successful.
In my next
Am 20.10.2020 um 06:46 schrieb John B Morris:
Hello all,
typography effects based video
So that one is basically what I'm looking to do with ffmpeg - turn a
subtitle file (of any type) into a transparent backgrounded (?) video for
use in my video editor to combine the necessary contents
Hello,
I'd like to propose an improvement for the find_rect filter.
In my application the object is quite small (10x10 pixels) and slowly
moving over half of the image size.
I did already narrow down the search area with the xmin, xmax, ymin,
ymax options, and I did optimize the threshold
Am 11.10.2020 um 21:07 schrieb Michael Koch:
Am 11.10.2020 um 20:56 schrieb Paul B Mahol:
On Sun, Oct 11, 2020 at 07:37:25PM +0200, Michael Koch wrote:
I tested all 4 DNG images again with the latest FFmpeg version
(Gyan's build
from today).
I tested with and without zscale filter. All tests
Am 11.10.2020 um 20:56 schrieb Paul B Mahol:
On Sun, Oct 11, 2020 at 07:37:25PM +0200, Michael Koch wrote:
I tested all 4 DNG images again with the latest FFmpeg version (Gyan's build
from today).
I tested with and without zscale filter. All tests failed. When testing with
IrfanView, all DNG
Am 29.09.2020 um 22:54 schrieb Michael Koch:
Hello all,
I've programmed a C# workaround for stabilization of 360° videos. The
procedure is as follows:
1. FFmpeg: From each frame of the equirectangular input video, extract
two small images which are 90° apart in the input video. I call them
I tested all 4 DNG images again with the latest FFmpeg version (Gyan's
build from today).
I tested with and without zscale filter. All tests failed. When testing
with IrfanView, all DNG input images seem to be ok.
Test 1:
Images from
Am 03.10.2020 um 22:43 schrieb Mark Filipak (ffmpeg):
On 10/03/2020 02:05 PM, Anatoly wrote:
On Sat, 3 Oct 2020 11:05:03 -0400
-snip-
You should learn than what spectrum is.
Oh, please. Be easy with me. I'm just a simple electrical engineer.
And how any complex waveform
(with it's
Am 03.10.2020 um 13:25 schrieb Paul B Mahol:
On Sat, Oct 03, 2020 at 08:27:20AM +0200, Michael Koch wrote:
Use correct player like mpv, which does not ignore color_trc.
A player? The output is a jpg image and it's too dark.
Yes, player, ffmpeg is not correct in conversion. Because swscale
Use correct player like mpv, which does not ignore color_trc.
A player? The output is a jpg image and it's too dark.
Yes, player, ffmpeg is not correct in conversion. Because swscale is old
and ignores color_trc metadata that is required for correct display.
Use zscale instead for converting
Am 02.10.2020 um 22:01 schrieb Paul B Mahol:
Use correct player like mpv, which does not ignore color_trc.
A player? The output is a jpg image and it's too dark.
Yes, player, ffmpeg is not correct in conversion. Because swscale is old
and ignores color_trc metadata that is required for
Am 02.10.2020 um 10:10 schrieb Paul B Mahol:
On Thu, Oct 01, 2020 at 11:40:57PM +0200, Michael Koch wrote:
Am 01.10.2020 um 22:11 schrieb Paul B Mahol:
On Tue, Sep 29, 2020 at 10:54:54PM +0200, Michael Koch wrote:
Hello all,
I've programmed a C# workaround for stabilization of 360° videos
Am 01.10.2020 um 22:11 schrieb Paul B Mahol:
On Tue, Sep 29, 2020 at 10:54:54PM +0200, Michael Koch wrote:
Hello all,
I've programmed a C# workaround for stabilization of 360° videos. The
procedure is as follows:
1. FFmpeg: From each frame of the equirectangular input video, extract two
small
Am 01.10.2020 um 16:57 schrieb Cristian Secară:
I want to make a short .mp4 clip filmed in 1080p/60 format, then change somehow
the playing fame rate to 30Hz so that the playing speed becomes twice slower.
Audio is not important (may be dropped completely).
As far as I know (?), a "simple"
Am 01.10.2020 um 14:06 schrieb Michael Koch:
Am 01.10.2020 um 13:25 schrieb Marco Mircoli:
Hello',
I'm a newbie.
Just bought a php script that use ffmpeg.
it converts to mp3/96Kbps all media uploaded in a unique format.
this is the line, and now it normalizes to R128 (thanks Moritz
Am 01.10.2020 um 13:25 schrieb Marco Mircoli:
Hello',
I'm a newbie.
Just bought a php script that use ffmpeg.
it converts to mp3/96Kbps all media uploaded in a unique format.
this is the line, and now it normalizes to R128 (thanks Moritz)
$shell = shell_exec("$ffmpeg_b -i
Hello all,
I've programmed a C# workaround for stabilization of 360° videos. The
procedure is as follows:
1. FFmpeg: From each frame of the equirectangular input video, extract
two small images which are 90° apart in the input video. I call them A
and B images.
2. C# code: Analyze the x
Am 29.09.2020 um 16:26 schrieb Mark Filipak (ffmpeg):
On 09/29/2020 09:37 AM, Michael Koch wrote:
Am 29.09.2020 um 14:58 schrieb Mark Filipak (ffmpeg):
On 09/29/2020 04:06 AM, Michael Koch wrote:
Am 29.09.2020 um 04:28 schrieb Mark Filipak (ffmpeg):
I just want to understand the frame
Am 29.09.2020 um 14:58 schrieb Mark Filipak (ffmpeg):
On 09/29/2020 04:06 AM, Michael Koch wrote:
Am 29.09.2020 um 04:28 schrieb Mark Filipak (ffmpeg):
I just want to understand the frame structures that ffmpeg creates,
and that ffmpeg uses in processing and filtering. Are Y, Cb, Cr
Am 29.09.2020 um 04:28 schrieb Mark Filipak (ffmpeg):
I just want to understand the frame structures that ffmpeg creates,
and that ffmpeg uses in processing and filtering. Are Y, Cb, Cr
separate buffers? That would be logical. Or are the Y, Cb, Cr values
combined and organized similarly to
Am 26.09.2020 um 13:02 schrieb Michael Koch:
Hello,
is it possible to use the cover_rect filter without using the
find_rect filter?
I don't want to use find_rect because I already know the coordinates
and size of the object to be covered.
Or is there another filter for covering an object
Hello,
is it possible to use the cover_rect filter without using the find_rect
filter?
I don't want to use find_rect because I already know the coordinates and
size of the object to be covered.
Or is there another filter for covering an object with "blur" mode,
using interpolation from the
Am 24.09.2020 um 14:52 schrieb Paul Bourke:
Also, I really dunno why people keep using remap filter with its only
available neighbour pixel interpolator.
Yeah, not ideal.
I don't use it for images, I have my own solution for that with
supersampling antialising.
But for movie conversion, what
Am 24.09.2020 um 14:30 schrieb Paul Bourke:
Hmmm
ffmpeg -i Ajanta_cave26b.jpg -i x.pgm -i y.pgm -lavfi remap=fill=green a.png
I get
[Parsed_remap_0 @ 0x7fd6cac05200] Option 'fill' not found
[AVFilterGraph @ 0x7fd6cae1c5c0] Error initializing filter 'remap'
with args 'fill=green'
Error
Am 24.09.2020 um 13:50 schrieb Paul Bourke:
How do I change the colour actually used as the chromakey colour?
I am creating remap filters to do various image mappings and would
like undefined pixels to be black rather than green.
Apologies in advance if I simply didn't search the documentation
Am 20.09.2020 um 15:19 schrieb Michael Koch:
Am 19.09.2020 um 17:01 schrieb Paul B Mahol:
On Sat, Sep 19, 2020 at 12:10 PM Michael Koch
wrote:
Hello all,
I want to create a 10-bit VLog test video which contains 18 levels of
gray, according to Panasonic's VLog curve.
The curve is documented
Am 19.09.2020 um 15:06 schrieb Mick Finn:
Does vlc even support 10 bit playback on supported monitors? I have 10 bit
calibrated monitor and don’t notice the same difference with vlc as with say
resolve
I don't have a 10-bit monitor. I'm assuming that FFplay or VLC do
automatically convert
Am 19.09.2020 um 17:01 schrieb Paul B Mahol:
On Sat, Sep 19, 2020 at 12:10 PM Michael Koch
wrote:
Hello all,
I want to create a 10-bit VLog test video which contains 18 levels of
gray, according to Panasonic's VLog curve.
The curve is documented here:
https://pro-av.panasonic.net/en
Hello all,
I want to create a 10-bit VLog test video which contains 18 levels of
gray, according to Panasonic's VLog curve.
The curve is documented here:
https://pro-av.panasonic.net/en/cinema_camera_varicam_eva/support/pdf/VARICAM_V-Log_V-Gamut.pdf
I want the leftmost bar to be black (128)
Am 14.09.2020 um 13:24 schrieb Gyan Doshi:
On 14-09-2020 03:41 pm, Michael Koch wrote:
Am 14.09.2020 um 11:26 schrieb Gyan Doshi:
On 14-09-2020 02:47 pm, Michael Koch wrote:
ffmpeg -v verbose -f lavfi -i
testsrc2=s=svga:d=5,format=yuv422p10le -vf
format=rgb48le,lut3d="VLog_to_V709
Am 14.09.2020 um 11:26 schrieb Gyan Doshi:
On 14-09-2020 02:47 pm, Michael Koch wrote:
ffmpeg -v verbose -f lavfi -i testsrc2=s=svga:d=5,format=yuv422p10le
-vf format=rgb48le,lut3d="VLog_to_V709.cube",format=yuv422p10le
-noauto_conversion_filters -pix_fmt yuv422p10le -c:v h264
Am 13.09.2020 um 20:18 schrieb Michael Koch:
Hello all,
I'm just testing the new -noauto_conversion_filters option.
As the first step, I'm running this command line (without the new
option):
ffmpeg -v verbose -f lavfi -i testsrc2=s=svga:d=5,format=yuv422p10le
-vf lut3d="VLog_to_V709
Hello all,
I'm just testing the new -noauto_conversion_filters option.
As the first step, I'm running this command line (without the new option):
ffmpeg -v verbose -f lavfi -i testsrc2=s=svga:d=5,format=yuv422p10le -vf
lut3d="VLog_to_V709.cube" -pix_fmt yuv422p10le -c:v h264 -y out.mov
This
Am 13.09.2020 um 17:27 schrieb amin...@mailbox.org:
On Sun, Sep 13, 2020 at 07:06:56AM -0400, Edward Park wrote:
Hi,
ffprobe now reports out.mov being yuv420p. Is this an implicit conversion to a
lower bit depth?
It's just the default output format for overlay. It's commonly used for stuff
Am 10.09.2020 um 19:10 schrieb Jippo12:
Hi!
Yes, I was confused and didn't realize that ffmpeg can do all this :)
because I first made a python script that creates star trails videos and
they are copied when processing the next step.
But for normal video, i use
ffmpeg -i
Am 07.09.2020 um 10:41 schrieb Paul B Mahol:
On Mon, Sep 07, 2020 at 09:12:47AM +0200, Michael Koch wrote:
Am 07.09.2020 um 08:46 schrieb Frei Sibylle Nora:
Hello,
I'm working in an Archive where we digitize analog movies. Our master-files are
usually DPX but now we get a new scanner which
Am 07.09.2020 um 08:46 schrieb Frei Sibylle Nora:
Hello,
I'm working in an Archive where we digitize analog movies. Our master-files are
usually DPX but now we get a new scanner which save the movies in DNG files. Is
there a possibility to convert de DNG files with FFMPEG to DPX files
Do
Am 03.09.2020 um 07:42 schrieb Gyan Doshi:
On 02-09-2020 11:53 pm, Michael Koch wrote:
"ffmpeg.zeranoe.com will close on Sep 18, 2020, and all builds will
be removed."
Any idea where we can get builds for Windows after this date?
I plan to provide 64-bit static builds startin
"ffmpeg.zeranoe.com will close on Sep 18, 2020, and all builds will be
removed."
Any idea where we can get builds for Windows after this date?
Michael
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Am 21.08.2020 um 21:34 schrieb Michael Koch:
Am 20.08.2020 um 09:57 schrieb Masala Kentaro:
hello!
I have problems using FFmpeg, while trying to convert DNG-sequence
into mp4/mov/avi video file.
While converting, I also need to downgrade the resolution of the video
from original 6016x3200
Am 28.08.2020 um 13:38 schrieb Edward Park:
Hi,
Let's assume the framerate is constant. For example, I want to delay a video by
5 frames and then hstack the original video and the delayed version:
ffmpeg -i test.mp4 -vf "split[a][b];[b]setpts=PTS+5/(FR*TB)[c];[a][c]hstack" -y
out.mp4
I
Am 28.08.2020 um 11:25 schrieb Edward Park:
Hello,
I am not confident about this info but I've always thought the timebase is usually the
reciprocal of the framerate *or smaller*. As in, the duration of a frame can be
represented accurately enough as the difference between the timestamps,
Hello all,
please comment if the following is right or wrong:
-- The timebase of a video (TB in setpts filter) is expressed in the
unit [s] (seconds).
-- The framerate of a video (FR in setpts filter) is expressed in the
unit [s^-1] (1/seconds).
-- In many cases the timebase is the reciprocal
Am 22.08.2020 um 11:03 schrieb Nicolas George:
Carl Zwanzig (12020-08-21):
IMHO, it would make more sense to remove the -all file as it's unweildly and
doesn't seem to contain to contain everything anyway.
It does contain everything, or there is a bug somewhere. And it is
useful precisely
Am 21.08.2020 um 21:38 schrieb Gyan Doshi:
Git mystifies me, too. I also did a lot of reading but it was written
my Martians.
For the purposes of only generating doc patches, you only need to know
and apply a handful of git commands.
Most of the supposed difficulties of working with git
Am 20.08.2020 um 09:57 schrieb Masala Kentaro:
hello!
I have problems using FFmpeg, while trying to convert DNG-sequence
into mp4/mov/avi video file.
While converting, I also need to downgrade the resolution of the video
from original 6016x3200 to 2030x1080.
First problem: I got almost black
Am 21.08.2020 um 18:41 schrieb Nicolas George:
Michael Koch (12020-08-21):
The page https://www.ffmpeg.org/git-howto.html was obviously not written
for beginners. Many terms are introduced without explaining them, and
examples are missing.
I think it was written for people who were familiar
Am 21.08.2020 um 17:06 schrieb Gyan Doshi:
On 21-08-2020 07:30 pm, Michael Koch wrote:
Am 21.08.2020 um 15:42 schrieb Mark Filipak:
On 08/21/2020 06:44 AM, Gyan Doshi wrote:
On 21-08-2020 04:03 pm, Michael Koch wrote:
Am 21.08.2020 um 12:09 schrieb Gyan Doshi:
On 21-08-2020 02:36 pm
Am 21.08.2020 um 15:42 schrieb Mark Filipak:
On 08/21/2020 06:44 AM, Gyan Doshi wrote:
On 21-08-2020 04:03 pm, Michael Koch wrote:
Am 21.08.2020 um 12:09 schrieb Gyan Doshi:
On 21-08-2020 02:36 pm, Michael Koch wrote:
Am 21.08.2020 um 10:50 schrieb Paul B Mahol:
On 8/21/20, Michael Koch
Am 21.08.2020 um 12:44 schrieb Gyan Doshi:
On 21-08-2020 04:03 pm, Michael Koch wrote:
Am 21.08.2020 um 12:09 schrieb Gyan Doshi:
On 21-08-2020 02:36 pm, Michael Koch wrote:
Am 21.08.2020 um 10:50 schrieb Paul B Mahol:
On 8/21/20, Michael Koch wrote:
Please add this to the documentation
Am 21.08.2020 um 12:09 schrieb Gyan Doshi:
On 21-08-2020 02:36 pm, Michael Koch wrote:
Am 21.08.2020 um 10:50 schrieb Paul B Mahol:
On 8/21/20, Michael Koch wrote:
Please add this to the documentation (for example in chapter 20.9
image2)
FFmpeg supports the following image formats: BMP
Am 21.08.2020 um 10:50 schrieb Paul B Mahol:
On 8/21/20, Michael Koch wrote:
Please add this to the documentation (for example in chapter 20.9 image2)
FFmpeg supports the following image formats: BMP, DNG, GIF, JPG, PAM,
PGM (binary P5 files are read/write, ascii P2 files are read-only
Please add this to the documentation (for example in chapter 20.9 image2)
FFmpeg supports the following image formats: BMP, DNG, GIF, JPG, PAM,
PGM (binary P5 files are read/write, ascii P2 files are read-only),
PGMYUV, PNG, PPM, TGA, TIFF.
Michael
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