17
votes
Accepted
convert KAZAM video file to a file, playable in windows media player
Your KAZAM video features YUV444P pixel format which WMP may not support without extra filters. Using ffmpeg, run
ffmpeg -i in.mp4 -pix_fmt yuv420p -c:a copy -movflags +faststart out.mp4
You can ...
- 31.8k
7
votes
Accepted
Techniques for compressing a slideshow presentation video?
x264 is the best-in-class encoder for generating H.264 video streams and you can use it via ffmpeg, a command-line tool, to encode to a small-sized file. Get a binary from here - opt for the latest ...
- 31.8k
3
votes
Software to capture high quality screen-casts
If you're using Ubuntu or any other Linux distribution, I'd recommend recordmydesktop. You can install it in Ubuntu:
sudo apt-get install recordmydesktop
Afterwards, run it from a terminal, using ...
- 143
3
votes
Matroska format's framerate is not accurate with certain values
MKV does not store a frame rate in its container. So ffmpeg/vlc looks at the default duration of a frame instead. It sees 33.333ms and does the math, which is where your weird number comes from.
For ...
3
votes
Record desktop at 1080p60 in high quality
Try lossless encoding with ffmpeg
First, with YUV444P
ffmpeg -f gdigrab -framerate 60 -i desktop -crf 0 -pix_fmt yuv444p -preset ultrafast yuv-cap.mp4
If not clear enough,
ffmpeg -f gdigrab -...
- 31.8k
2
votes
Lossless screen-recording software
I had very similar requirements and eventually found on Claquette.
It's an OS X app that uses a lossless codec. While it doesn't allow you to define a screen area before recording, it has a crop ...
- 121
2
votes
Software to capture high quality screen-casts
If you have a Mac, give ScreenFlow a try. It offers lossless screen recording which can be exported for use in Premiere or other NLE's and it's inbuilt editing is pretty good too for quick edits.
- 121
2
votes
Why does video rendering begin at the top left corner of the screen?
Probably because TV and CRTs scanned from the top left. Video cards store the screen buffer in this order, too, so scan-out from the screen buffer in left-to-right, top-to-bottom reads sequentially ...
- 2,690
2
votes
How to remove honking noise in room for voice over recording
This is an issue for me too. You need a multi-pronged technique:
Choose the quietest room. If street noise is an issue, which room is furthest from the street? Many people have offices and desks, but ...
- 123
2
votes
Accepted
Cut Loom screen recording at 39s, trim video around the edges to hide scrollbar and Loom stop button using FFmpeg
Cropping is carried out using a video filter. Also, a filtered video has to be re-encoded. So the command would be
ffmpeg -i input.mp4 -vf crop=1824:1026 -t 39 -c:a copy output.mp4
See the docs for ...
- 31.8k
2
votes
Is there any free video screen capture applications?
Open Broadcaster Software is a (good)
Free and open source software for video recording and live streaming.
Download and start streaming quickly and easily on Windows, Mac or
Linux.
- 31.8k
2
votes
Accepted
Screen capture at more than 1000 FPS
I can't rule out specialized hardware devices that might be able to, but 1080p video at 1000fps produces 6GBps of raw data at 8 bit color. That's 48 gbps, which exceeds the highest standards of most ...
- 19.3k
1
vote
Good alternatives to Omnidazzle?
Presentify is a simple mac app to let you draw on the screen. It has a whiteboard option and also highlights the cursor in different styles.
Website: https://presentify.compzets.com
App Store: https:/...
- 111
1
vote
Good alternatives to Omnidazzle?
here are couple of sites you should check out:
1.http://epic-pen.com/
2.http://ink2go.org/
3.https://www.pencilkings.com/drawing-tools-and-drawing-software/
hope it helps, good luck!
- 181
1
vote
If I use Adobe Premiere Pro for video editing, does it matter what screen capture software I use?
If you are going to use Premiere for editing, there is no point in looking at the editing advantages, they won't be higher than Premiere's capabilities for sure.
Some polls have Filmora lower in ...
- 135
1
vote
Logo replacement in screen recording
The easiest solution would be to record the presentation without the logo altogether using open broadcast, fraps or some screen recorder. You can then animate the logo in After Effects from within a ...
- 2,665
1
vote
Accepted
making mouse click action obvious in a screen-cast video-capture
That is a Blender specific plugin that you can activate in the scripts menu.
https://en.blender.org/index.php/Extensions:2.6/Py/Scripts/3D_interaction/Screencast_Key_Status_Tool
1
vote
Accepted
How to Record Screen in 4K on 1920x1080 monitor? (OBS Studio)
The easiest way I think would be to set up a virtual machine. I use VMWare Workstation 12. However Virtualbox is free. Youd have to install your OS and screen capture software (such as Bandicam which ...
- 2,467
1
vote
What output video format for Kazam requires less cpu power?
VP8 and H.264 should essentially be the same demand due to them being similar.
RAW is well, RAW, each specific pixel data, with no methods of reducing file space, this can cause very large file ...
- 31
1
vote
Accepted
Screen cast and capture video cam and show both on screen using ffmpeg
This solution works in Linux.
To screen cast with inset video of yourself on screen where you have a video camera that is located at /dev/video0, paste the following into a text file and name it ...
- 141
1
vote
Accepted
how to decide the appropriate resolution when recording my screen for uploading online?
Recording full screen, if your hardware allows you to do it smoothly, is your best option. You can always crop or mask out unwanted areas later in editing. You won't have that freedom if you crop the ...
- 31.8k
1
vote
Accepted
How to add a "presenter's name" graphic to Camtasia that appears in from the right
The term you're looking for is 'lower third'. Here's a tutorial from the software publisher on how to do that.
- 31.8k
1
vote
Accepted
Screen capture AND audio recording in ffmpeg
The solution seems to be to use both a different video and audio encoder. This line works:
FFmpeg/ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+0,0 -f alsa -ac 2 -i pulse -acodec aac -...
- 121
1
vote
Lossless screen-recording software
Please excuse my tardiness to the party, this is something that I've been working with as of late lossless screen recording
Originally I was using OBS to record my screen throughout the year 2019 ...
- 111
Only top scored, non community-wiki answers of a minimum length are eligible