Hi there,
Tried to make a screen cast this morning, but the result is flashing red?
https://s.natalian.org/2022-01-06/vscode-span.mp4
https://s.natalian.org/2022-01-06/vscode-span.log
Any ideas what I am doing wrong?
Thank you in advance,
___
ffmpeg-us
Hi there,
How do I prevent my audio going out of sync with my screen capture please?
https://s.natalian.org/2021-02-22/update-chart.log
https://s.natalian.org/2021-02-22/update-chart.mp4
Perhaps it's an issue with my USB microphone?
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues
For several months as an Archlinux user, kms screen capture has been broken in
the standard ffmpeg package.
[h264_vaapi @ 0x55f36423d5c0] Pick nothing to encode next - need more input for
reference pictures.
[hwmap @ 0x55f364244000] Filter input: drm_prime, 2560x1440 (60557866).
[AVHWFramesConte
Hi,
Just to follow up, I think I have it working again and the permission errors
have fallen away with 5.5.2-arch1-1 and perhaps some other package update.
After much back and forth it would appear the `-crtc_id 48` was causing the
initial issue with vaapi_device /dev/dri/renderD128.
[kmsgrab @
Replying to https://ffmpeg.org/pipermail/ffmpeg-user/2020-February/046699.html
Didn't manage to configure mailman correctly to just send replies to my email
post.
I created another "Capture the screen from the first active KMS plane" [1]
without the hide banner switch.
1. https://s.natalian.org
Hi there,
For sometime I've been happily using kmsgrab to make screencasts on my
Archlinux Xorg desktop.
https://github.com/kaihendry/recordmydesktop2.0/blob/9825a44d886318d78463c0a602681c0c7931cf83/x11capture#L71
But then it broke after a reboot as described here:
https://www.reddit.com/r/ffmp
Thanks for the sudo setcap cap_sys_admin+ep /path/to/ffmpeg tip. It
indeed works.
https://github.com/kaihendry/recordmydesktop2.0/commits/kms
Unfortunately kmsgrab seems to lag for me:
https://s.natalian.org/2018-06-26/1529976937.mp4
And sometimes is unreliable:
https://s.natalian.org/2018-06-26
On Mon, 25 Jun 2018 at 09:49, robertlazarski wrote:
> That command worked for me though of course without your external dep.
You managed to record sound with your kmsgrab? Not sure what you mean
by external dep!
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ffmpeg-user@
Hi ffmpeg users,
Sorry I initially posted my question here:
https://www.reddit.com/r/ffmpeg/comments/8tgejw/kmsgrab_on_intel_8th_generation_aka_hw/
Via https://trac.ffmpeg.org/wiki/Hardware/VAAPI#ScreenCapture I
discovered kmsgrab which astonishingly doesn't seem to drop frames or
over heat my T4
Actually I spoke too soon. It's definitely dropping frames still. For example.
https://s.natalian.org/2018-03-28/1522205981.mp4.log
https://s.natalian.org/2018-03-28/1522205981.mp4
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ffmpeg-user@ffmpeg.org
http://ffmpeg.org/mai
On 23 March 2018 at 21:12, Mark Thompson wrote:
> This is still duplicating a very large number of frames for video sync. As
> suggested previously, please try with video sync disabled ("-vsync 0") or
> without audio.
https://s.natalian.org/2018-03-25/vsync.mp4.log
https://s.natalian.org/2018-
On 23 March 2018 at 14:06, Erik Dobberkau wrote:
> If you only capture a fraction of the frames your device is actually
> producing without motion blending, isn't that to be expected?
A fraction of the frames? I should iiuc be capturing at 30 fps. I am
not quite sure how to tell how much is being
Thank you Moritz! Damn, I feel like a fool. ;)
Unfortunately Mark's suggestion doesn't seem to have an impact.
As you hopefully can see here:
https://s.natalian.org/2018-03-23/1521768226.mp4
The mouse still doesn't move smoothy across the screen. Hence I feel
it's dropping frames!
https://s.nat
On 21 March 2018 at 19:17, Mark Thompson wrote:
> If that doesn't work then I suggest reducing the test case to find which
> parts are causing the problem - e.g. try without audio, using libx264 instead
> of VAAPI, without extra video sync ("-vsync 0").
Thanks! Will give it a shot.
> Aside: t
Hi Mark,
On 20 March 2018 at 17:58, Mark Thompson wrote:
> Show your command line? The pts values in that file are quite uniform,
> suggesting that you've forced the output to be treated as if it is 30/1001
> fps even if it isn't. The status line also says "frame= 529 ... dup=430",
> which
Thanks Dennis for the suggestion!
On 20 March 2018 at 10:54, Dennis Mungai wrote:
> Have you tried using the restream option?
> ffmpeg -re -i capture_device -vaapi_device /dev/dri/renderD128
> -movflags +faststart
> -vf 'format=nv12|vaapi,hwupload' -c:v h264_vaapi {$encoder_opts} outputfile.
I d
Hi there,
With my brand new Intel 8th gen laptop (Intel Corporation UHD Graphics
620 (rev 07) with 8 core Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz on
Archlinux, I thought I'd experiment with hardware accelerated capture
as opposed to my normal 2-step approach of
1) recording to mkv
https://github.
On 13 September 2015 at 12:24, Steve Boyer wrote:
> Put the "-c:a copy -c:v copy" to copy the streams and not transcode and it
> worked fast (778 fps) and plays fine with ffplay and VLC. MPlayer plays it
> at an insane FPS. Stats on the resulting file:
Thanks Steve, I didn't realise a 'copy' was
On 13 September 2015 at 12:40, Lou wrote:
> All relevant info should be placed within the message, and debug output
> is usually too verbose (unless it is specifically requested).
It's hard enough to use FFREPORT=file=/tmp/htmlvideo.log:level=32 and
now I need to selectively paste in the output?
Hi guys,
The Input #0, mpeg transcoding into mp4 (for iPhone playback via
Safari) is resulting in up 3x larger files. Why is that?
ffprobe of a typical MKV input file:
http://ix.io/kLm
The ffmpeg log:
http://ix.io/kMw
Sidenote: Found I had to put in a frame rate of 30 else things
wouldn't work.
On 30 April 2015 at 17:21, Tom Evans wrote:
> What is missing (and the only thing that is really required) is the
> full command line that you used to invoke ffmpeg, and the console
> output that invocation of ffmpeg produced, presented as inline in the
> email. No attachments, no externally linke
On 30 April 2015 at 15:38, Moritz Barsnick wrote:
> Yes. You have too many links to external stuff (tarballs, logs [why not
> attached here?], various scenarios, various requests, and it's unclear
> what the problem is.
Whoa, I try to be as detailed as possible and then I get criticized
for inclu
Hi guys,
I've received an answer on http://stackoverflow.com/a/29952909/4534
which doesn't work for me. I am simply trying to create a browser
friendly stream in my LAN from my /dev/video1 device.
Here is the report log:
http://s.natalian.org/2015-04-30/ffmpeg-20150430-102645.log
http://ix.io/icO
On 13 March 2015 at 16:53, Moritz Barsnick wrote:
> HDMI inputs. Here's one I randomly picked from their website (well, it
> looked like the "smallest" one with HDMI input):
> https://www.blackmagicdesign.com/products/decklink/techspecs/W-DLK-06
Ah, didn't know about these. But since they don't h
Forgive me if this is wrong place to ask such questions. I've been
trying to work out what capture hardware can get HDMI video into a
usable format for manipulating with FFMPEG on my Linux system. I've
compiled my research so far upon:
http://natalian.org/archives/2015/03/13/HDMI_in/
I seem lim
On 4 March 2015 at 18:15, Christoph Gerstbauer
wrote:
> which -pix_fmt (pixelformat) does your recorded ffvhuff have? I cant see a
> syntax setting for the pixel format in your video.
I didn't have one defined
https://github.com/kaihendry/recordmydesktop2.0/commit/0405b25a5c7a5673dfdc46590c4cdde3
Thanks to "relaxed" on the IRC channel:
On 4 March 2015 at 10:46, Kai Hendry wrote:
> So using ffmpeg 1:2.5.4-1 and mplayer 37353-1 from Archlinux, I'm now
> unable to playback the intermediate mkv files without stuttering.
Solution: Use ffplay or mpv instead of mplayer
&g
Hi there,
I wrote a simple ffmpeg based script to make screencasts
https://github.com/kaihendry/recordmydesktop2.0/blob/master/x11capture
It's worked well from my Thinkpad X220, but after switching to a new
Thinkpad X1 Carbon 3 with a larger 1920x1080 screen, I'm having two
issues that I've attemp
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