7
votes
Accepted
SDI - serial digital interface
General SDI vs. HDMI Information
SDI is easier to connect to other professional equipment than HDMI. It is an all purpose signal, as opposed to HDMI that was originally intended only to connect to ...
- 2,405
6
votes
Corrupt MP4 [recording interrupted]
I recently encountered this exact problem and I was able to repair the file using Untrunc, a program created specifically to solve this problem, as suggested by sparrowt on SuperUser:
For this ...
- 161
5
votes
Why Camtasia always produce video with a low quality, even if I record in 1280p, for example?
The quality of the images you posted look completely normal to me for what you are doing. You're taking a screenshot and scaling it down. That means that anything drawn as a single pixel in the user ...
- 2,156
4
votes
Corrupt MP4 [recording interrupted]
Updated: this tool can now recover files from more sources.
Try with recover_mp4_to_h264. It's a command line program, and will require a good reference file.
Usage as indicated:
recover_mp4 ...
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4
votes
Digital TV SCTE 35 signal
To determine if a channel has SCTE-35, you will need to have the Program Map Table (PMT) recorded. From the PMT, you should be able to find the Packet Identifiers (PIDs) of all of the streams ...
- 2,405
4
votes
Accepted
Does using an S-Video output via a SCART connector improve the output quality of a VCR?
The answer is probably no, unless the SCART socket on your VCR is labeled specifically as "S-VIDEO". The fact that SCART connector has S-Video pins does not guarantee that your VCR provides ...
4
votes
Accepted
How do I improve sharpness of foliage and distant objects during video recording?
You are most likely observing Optical Aberration - see https://en.wikipedia.org/wiki/Optical_aberration and also https://en.wikipedia.org/wiki/Defocus_aberration. Haze is also likely a contributing ...
- 687
3
votes
Accepted
How do you dramatically reduce the size of a video while keeping the quality as much as possible?
I'm not familiar with handbrake, but this is basically a math problem.
First, you have to decide on a codec. One of the 'best' codecs in regards to quality/filesize-ratio as well as device-...
- 5,412
3
votes
How should I encode my 4K video stream?
As mentioned by @Mulvya, I think the issue is the "slow" preset.
One option is encoding a compressed stream that is also lossless. For example, the x264 encoder can do this using "-preset ultrafast -...
3
votes
Are there Tripods to film the bottom when writing on a paper?
There are a number of photo tripods that allow you to invert the center column. When inverted, the camera sits between all the legs and can be pointed down. Another tripod design has a center column ...
- 4,730
3
votes
Accepted
What does an external video recorder like a Ninja offer?
If you record (typical AVCHD) sub-30 Mbps 4:2:0 video to a card and 220Mbps 4:2:2 video to an external recording device, you will be hard pressed to tell the difference when you view it back on ...
- 4,730
3
votes
Recording me write my notes and my speech at my desk
First, you need a smartphone, such as iPhone or Android. Then you need something to hold it over your notes, such as this. Then you need diffuse lighting at or above the level of your smartphone, ...
- 4,730
3
votes
Accepted
Does 60 fps make sense for YouTube?
Google has supported 60fps video since 2014. YouTube has a page that talks about video formats, codecs, framerates, etc., here. It is up to the Browser and YouTube to negotiate what format, frame ...
- 4,730
3
votes
Accepted
Blackmagic setup: How do I record all cameras in a multicam broadcast?
You can use an SDI Distribution Amplifier ("DA") (one SDI input, and two or more SDI outputs) for each camera so you can "duplicate" the camera video to send to both the production switcher and to ...
- 686
3
votes
Accepted
How do I replace my organisation's event video camera?
Firstly, that camera has a 29 minute 59 second recording limit. If your speaker goes for longer than this it may not be suitable. Apparently this is due to some countries charging higher import duties ...
- 13.7k
3
votes
How should I mic dance instructors when video recording?
There is another option that is good to know about, the Crown PCC-160 boundary mic. This is a standard mic to put at the edge of a stage to get good quality sound from actors in plays.
"Supercardioid ...
- 71
3
votes
Can I zoom in, manual focus, then zoom out?
To answer your second question:
You can only use the zoom in, focus, zoom out if the lens is parfocal. Normally a parfocal zoom lens starts at 3000-4000 USD, thus I highly doubt the lens in this ...
3
votes
Accepted
What are a Gimbal and Tripod used for?
Gimbals are good for adding movement without shake, they're brilliant for run-n-gun documentary work where lugging a tripod slows you down. They're perfect when you're in the thick of things, using a ...
- 13.7k
3
votes
How can I replicate C-LOG in a Canon DSLR?
The Magic Lantern firmware transforms Canon DSLR cameras into RAW-capable video cameras that are not half bad. The native Canon video codecs are universally among the worst of any current DSLR, not ...
- 4,730
3
votes
Sharpness of Canon 80d
If the stills look sharp and detailed, then the sensor and optics are not to blame. I would blame the encoder and whatever sacrifices Canon made for the video mode. The 80d has the same Digic 6 ...
- 494
3
votes
Accepted
Prime or Zoom for Video (Micro Four Thirds)
For most people, the first workhorse lens will be a zoom, because of the versatility.
Sharpness in lenses isn't a huge factor for video; at HD resolution and below, lenses that photographers turn ...
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3
votes
Prime or Zoom for Video (Micro Four Thirds)
I have that camera. Here are a few things to consider:
The camera doesn't have any in-body stabilization, so the footage can be very shaky unless you're prepared. In my situation, I knew I wanted ...
- 4,444
2
votes
PC instead of external recorder
Blackmagic Design's Decklink cards are a starting place for desktop computers: https://www.blackmagicdesign.com/products/decklink
For laptops there's both Intensity: https://www.blackmagicdesign.com/...
- 4,730
2
votes
Accepted
What is the size of 1 minute video at 1920 x 1080 (60 fps)?
Try those calculators, they should do the trick.
http://www.digitalrebellion.com/webapps/videocalc
- 686
2
votes
Accepted
Does it make sense to upgrade my set up to 4K from a (Canon) 70D set up?
It all boils down to "Do you need it"
If you are shooting corp promos and your clients keep asking or are insisting on 4K then Yes you can look into it as you can justify the purchase as the work is ...
- 1,284
2
votes
Set file size limit for video on Canon 5D mark iii
The 4 gig limitation is there cause most memory cards are formatted with FAT32 which can't handle files larger than 4 gig.
Refer to Manual page 234, http://gdlp01.c-wss.com/gds/8/0300007348/05/eos5d-...
- 226
2
votes
Converting a Video from 1600 * 1200 to 1200 * 900
Use ffmpeg with -vf scale=1200:900 option. For example
ffmpeg -i input.mp4 -vf scale=1200:900 -c:a copy output.mp4
- 21
2
votes
Improve video quality by lowering framerate
Theoretically it IS possible, and there are working, practical, proof-of-concept research on the subject.
A couple of examples:
Learning to Extract Flawless Slow Motion from Blurry Videos
Blurry ...
- 121
2
votes
Suggestion to record video from TV
Personally I use Pinnacle Studio to record the TV shows. I have used it to record over a 100 hours of TV footage till now and I'm pretty happy with it.
What You Need
TV Tuner
Software to record.
...
- 225
2
votes
Accepted
How can I play a file created in OBS?
OBS is a video streaming and recording software, not a video player. You will need either find a video player that will play an .flv file, or switch your settings in OBS to record to a different ...
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