the process of capturing a video signal with a computer, using a capture device (PCI-E, USB, Thunderbolt)
0
votes
0answers
7 views
Issues with using high quality security cameras for video production?
I'm looking to set up a project area in my shop for regularly recording videos for youtube. I would like to have 3 or more video streams to post production edit. Obviously I don't need cinema grade, ...
0
votes
0answers
20 views
FFMPEG Speed drops and warnings
I've been trying to stream from a BlackMagic DeckLink Mini Recorder to 4 different outputs using FFMPEG, but i get a huge delay let say more than 60 seconds of delay, it takes a long time to buffer on ...
0
votes
0answers
26 views
Converting VHS tapes to digital using capture device and VLC player, image is jerky
I am trying to convert my old home videos to digital.
I bought a capture device and used EasyCAP which worked fine for the first three videos tapes. Then my computer installed an update and the ...
0
votes
0answers
22 views
Sample K representative frames within a video
I have an image-based processing module that takes photos for some computer vision processing. I have many videos, but I need to sample representative frames as its inputs, preferably those frames ...
1
vote
0answers
12 views
Video recording framerate limitation causes? (e.g. 1080p at only 60fps despite same camera records in 2160p?)
I know, smartphone cameras are maybe not the primary interest of professional videographers, but I am interested into the technical aspects.
They can also be relevant for real cameras.
There are ...
-2
votes
2answers
38 views
Is failure free streaming possible in todays world?
Is streaming video from one PC to a physical second PC with recording it there, without getting any frame drops, artefacts, basicly everything what the source video don't have, in todays world doable ...
0
votes
0answers
25 views
HDMI Splitter Shutting off Output Channel
Hey so what I'm trying to do is take HDMI input (from a computer) to a splitter from which one channel goes to some viewing device (projector or something) while the other channel goes through a ...
0
votes
0answers
22 views
How do I connect a Grundig SVR 4004 video recorder to a converter to digitise SVC tapes?
I'm looking to digitise some old SVC tapes on a Grundig SVR 4004 video recorder. Here is the Wikipedia entry.
I understand I should use a cheap USB converter such as this one but haven't been able to ...
0
votes
1answer
33 views
Highest quality way to extract a still from video
I have a MP4 that I really really want a still from.
I want to make a canvas from that still.
I have access to: Adobe premiere elements 12, ffmpeg and gimp.
I want the still to be the highest ...
0
votes
1answer
77 views
What output video format for Kazam requires less cpu power?
Please tell me what is the appropriate StackExchange site to post this question if it doesn't fit here.
I use Kazam to capture my videoconferences. It gets too CPU-demanding but the program is ...
1
vote
3answers
61 views
Looking for the fastest way shoot video on a camera and review it on a laptop
Our freestyle ski team is looking to invest in a system that allows athletes to immediately review their competition ski runs with their coach after they get to the bottom. While they're playing back ...
0
votes
0answers
46 views
Stutter with too much movement in video (using Virtual dub to convert VHS)
I started using Virtualdub to convert my VHS tapes to my laptop. The following only occurs when I try to convert home made videos (captured with a Panasonic Viewcam VL-H860) recorded on VHS. I don’t ...
0
votes
0answers
234 views
What timing settings in VirtualDub should be used for VHS capture via EasyCap?
I want to digitize my VHS (PAL) home video tapes using an old video cassette player and EasyCap. Here is the photo of my EasyCap chips for reference:
After several days of reading how to perform ...
0
votes
0answers
62 views
Digitizing VHS: settings?
I have gotten myself a Video grabber (Basetech BR116). I have some old PAL VHS tapes I want to digitize.
Since the signal is interlaced should I capture 25 or 50 FPS?
Is it best to deinterlace during ...
1
vote
0answers
56 views
Is the Flycam Galaxy Arm and Vest compatible with a Steadicam Solo?
I am planning on getting myself a Steadicam Solo Stabilizer and Monopod from B&H Photo Video. However, for my purposes I would really need an arm and vest kit that I could mount it onto. While I ...
0
votes
0answers
199 views
How to capture HDMI output on a Mac
I own two Sony NEX cameras (NEX 3 and NEX 5) and have just recently noticed the HDMI mini port on them.
Would these HDMI mini ports let me record RAW or uncompressed data right out of the camera?
...
1
vote
2answers
57 views
Mounted Canon VIXIA HF G20 -
Church installation. We have the camcorder mounted 12' above the floor and I have to use a ladder to get to the camera to take out the SD card and then replace it after I have downloaded the video for ...
1
vote
2answers
29 views
What should I do to improve the quality of the screen capture?
I'm creating videos to post to YouTube.
My videos are about some jobs I do on the computer.
I watched some of my videos posted and that the quality of the video capture was not very good and clear.
...
1
vote
1answer
116 views
AVI Capture in VirtualDub: MP3 Compression
I would like to capture my old VHS tapes to my HDD. I already was successful installing the xvid codec which gives me an acceptable video compression.
But somehow I am not able to set audio ...
0
votes
1answer
20 views
PCIe video capture card
Is it better to go with a video capture card with h.264 encoding or just a raw input port? I have powerful pc but not sure best card to use for high quality image, reliability, and ease of install.
-1
votes
1answer
35 views
Is there any free video screen capture applications?
I am trying to find a totally free screen capture application for Windows and MacOS. Is there any free apps that don't put watermark on the video ?
1
vote
1answer
16 views
Need advice about VCR to PC connection
I need advice for something I want to do with VCR to PC image transfering. I have bought a video capture usb (RCA to usb) but there is a problem with the image... It's shaking right and left.
Like ...
0
votes
0answers
67 views
Which stabilizer for my GH5
Since a week, i search a stabilizer for my panasonic GH5. I have read some articles which speak about difference between gimbal and steadycam. I want to capture my hike, landscape, and somes other ...
1
vote
1answer
297 views
ffplay - Live capture video gradually lags behind
I have a Magewell capture device that I'm trying to preview with ffplay. It works great, except over time the video will become choppy and lag behind the actual live feed. Right clicking on the ...
0
votes
1answer
315 views
capture card for thunderbolt 3.0
I'm a youtube gamer and I'm interested in making the transition from pc to mac. Unfortunately, I'm not too familiar with macs and any challenges their usb thunderbolts will pose. I want to get the ...
2
votes
1answer
1k views
How to add a time stamp using ffmpeg to a screenshot capture of a video
I am trying to output a screenshot of a video at an specified time and the resulting picture should have a black square with the time that was given initially.
So far I was only able to produce a ...
0
votes
1answer
305 views
ffmpeg: Why did my capture speed drop? (can no longer capture using same command)
I've been using the following command to capture video with ffmpeg for the past two months using my Blackmagic Intensity Pro 4K capture card:
ffmpeg -bm_v210 1 -rtbufsize 1500M -threads 4 -f decklink ...
0
votes
0answers
30 views
Capturing videos of specific length using Canon EOS in LiveMode
I would like to capture videos of a specific length on my computer, using the Canon EOS 750D.
More precisely I want to put it on a tripod for one week and it should take videos of a chosen length and ...
2
votes
2answers
438 views
Video capture software for 10-bit 4K
I have a Blackmagic Intensity Pro 4K video capture card and Panasonic GH4, which can output 10-bit 4K from the HDMI port.
I'm running Windows 10 and I have two 1 TB SSDs, but with write speeds of ...
1
vote
1answer
572 views
Cheap option for recording HDMI output
I have been looking for a way for my PC to record HDMI output so I can record my gaming console without buying an expensive capture card. I already have a HDMI splitter I'm just looking for some cheap ...
1
vote
0answers
13 views
How do I import minidv video to windows?
I've connected my camcorder to the pc via firewall,driver was also installed but when I plug in and out nothing happen. (Except the sound). Do i need any software?
-1
votes
1answer
22 views
which camera glasses allow recording while connected to power source
I am trying to use camera glasses for documenting benchwork.
Most of available models allow 1 to max 2h hours of recording for as long as the battery lasts and only allow next recording after the ...
-1
votes
2answers
101 views
Why you need hardware (e.g. capture card) for video input?
To fully understand the how it works: you pick any device with HDMI output (let's say GoPro to reduce the variations) and you'll need a capture card for retreaving the data as multimedia signal. ...
1
vote
2answers
1k views
How to create screen capture video without losing it's quality?
I want to create screen capture tutorials such as https://laracasts.com/series/php7-up-and-running/episodes/1 (with the HD option) for YouTube. On laracasts' videos, words are excellently readable, ...
1
vote
1answer
3k views
FFmpeg : How to replace video background color with transparency? (while capturing)
I want to capture a window and overlay it on another video.
This is my command:
ffmpeg -i MainVideo.avi
-f gdigrab -framerate 25 -video_size 300x200 -i title="MyWindow"
-filter_complex "[0]setpts=...
1
vote
1answer
20 views
Request for Camcorder and Tripod Recommendations for Occasional Amatuer Usage, With Emphasis on Good Sound Quality
The title just about tells all about my question, but for a few more specifics, I want to record some monologue rehearsals (of myself) in an empty hall, and will later probably have some live ...
1
vote
2answers
40 views
DSLR vs CamCorders for video tutorials?
I'm planning to record video tutorials for a project of mine without compromising on the quality and I would like to know the best option to shoot them
0
votes
0answers
474 views
H264 capture from Mini Recorder
I've got a Blackmagic Design Ultrastudio Mini Recorder, which allows me to record HDMI and SDI in. In the list of supported codecs for capturing from it (both in premiere and its own software), I see ...
0
votes
2answers
4k views
How can I record adobe flash player stream
I am learning english and I want record this stream.
It's using flash player and in addition include PDF doc.
thanks for your interest
0
votes
1answer
490 views
Capture a wpf window : The flickering issue
I made a simple animation (as crawl text) using C#-WPF.
The animation is smooth and excellent. (in wpf window)
But when I capture it by FFmpeg as video it has flickering problem.
Please see sample1 ...
1
vote
3answers
709 views
What Options Are There for Importing Mini DV and Hi-8 Tapes to Thunderbolt?
So, it looks like FireWire is dead, and, along with it, all those FireWire ports on Mini DV cams and A/D converters from the 2000's. So what options exist today for getting Mini DV and Hi-8 tape ...
1
vote
1answer
1k views
ffmpeg buffered recording
need some advice to solve the problem
ffmpeg is receiving the nonstop live stream (rtmp source) from camera monitoring entry gates
after trigger is fired (gate/door is open) I need to create the ...
1
vote
1answer
32 views
Focus in Video vs Focus in Image
This is kind of a weird question, but how does focus in video work? I understand how focus works for single, still images. And, I understand that a video is a sequence of images. However, unlike ...
3
votes
1answer
3k views
How should I encode my 4K video stream?
I'm capturing uncompressed 4K video from my Sony A7R II via a video capture device, and am using ffmpeg to save the video.
My problem is I don't know what codec to use. The two options I tried are:
...
1
vote
2answers
5k views
Using ffmpeg to stream to or from Blackmagic Decklink Card
I want to use blackmagic cards with ffmpeg to stream their input but there is a problem.
When I use "H264 Pro" Encoder as a "decklink" or "dshow" input, I see this error in command line output of ...
2
votes
2answers
208 views
Flicker in the Capture, LED light source
Incident:
I'm trying to capture small particles at about 20-30 cm distance to the camera at ~60-70 fps. Was using SMD32 LED with rechargeable battery as light source. By using that light source, ...
1
vote
2answers
676 views
Why has my game video, captured with OBS/Win10 DVR, a black screen in iMovie/WindowsMovieMaker?
I am capturing games on my Windows 10 PC with Open Broadcast Software and x264 codec. My problem is that as soon as I import a video.mp4 file to iMovie or WindowsMovieMaker for editing, it is black, ...
0
votes
2answers
1k views
Does having hardware encoding chip help?
I've been googling for a while now so I finally decided to ask others as well as I'm pretty darn confused.
I'm looking to be able to stream at 1080p at 60fps ( from a gaming laptop, it's more than ...
1
vote
1answer
152 views
How to up scale video resolution for Video Card
I've a Black Magic Declink Mini Recorder Frame Grabber which supports minimum 720p as Video Input. But my camera has a VGA resolution which ostensibly will give output in 640*480 resolution. The card ...
3
votes
1answer
57 views
How to capture 4K screens?
I want to create videos for youtube, but because I am using a 4K screen it is very difficult to find a proper recording solution.
My idea was to buy a card, that I can put into my computer that ...
