Questions tagged [video-quality]

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What is this video dithering effect called + how can i achieve this?

I'm going to make a vlog using this effect since I was looking for a LQ, Nokia-ish footage! What is this effect called and can it be achieved via After Effects? Thank you!
dn dn dn's user avatar
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6 views

Transporting Video Signal Over Optical Fiber

I have stumbled upon an issue while doing an application. In this application there is an existing multimode fiber which is installed. We will be using Sony PXW-Z90 and QuestTel's optical extenders. ...
JohnMoore1000's user avatar
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Vertical edges appear shaky while the camera moves horizontally

I have noticed that in the video the vertical edges of the rock (I mean the rock that is a kind of a monument just behind the subject) seem to jump back and forth while ...
Michał Kołodziejczyk's user avatar
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I need help creating a good GIF

I am using VSDC to create a GIF image of three images that fade from one into the other. I think I have gotten the fade working well. In the timeline, I fade out one image as I also fade in the next ...
xarzu's user avatar
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Action cam - Bad video color in some cases - reason?

if you compare these two screenshots which were made from a video (DJI Osmo Action 4) with the same settings, you see the quality on the one is pretty nice, but the trees in the other one look pretty ...
Bevor's user avatar
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1 answer
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What kind of video or audio encoding is causing this?

Trying to stream a video (mkv) on a Samsung 2017 TV and some videos are "lagging" / buggy. I don't know the term for this kind of issue so it's hard for me to pinpoint the problem. The video ...
Pobe's user avatar
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9 views

Videos of interacting art (from two different types of art genres)

I was unsure about whether to post this on the Computer Graphics stack exchange. I could also have chosen the Graphic Design stack exchange or the Arts & Crafts stack exchange. However, as you ...
Joselin Jocklingson's user avatar
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5 views

Algorithm to perform adaptive quality control for videos?

0 I recently had an interview experience that was un-aligned with my software engineering experience, but I still think want to get a better understanding of what the interviewer was asking, which I ...
fatma5727's user avatar
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Noise artifacts when recording HDR videos

I have a Google Pixel 7 smartphone with support for HDR (10 bit) video recording technology in 4k 30 frames. And I was wondering how the environment affects the shooting of this video format. When ...
Vsevolod Kasatchikov's user avatar
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13 views

Where to find alternative audio tracks for TV series

How can I add several audio tracks with different translations to a series, as film sites do in some series with 10 translations, where can I find them?
Aleksander's user avatar
1 vote
1 answer
77 views

Convert Anamorphic Pixels to Square Ones and Preserve Displayed Image Size

Given a video with anamorphic pixel aspect ratio (see the screenshot from HandBrake). What I need is to stretch the images stored in the video stream (in other words, to convert the video to 1:1 ...
ENIAC's user avatar
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ffmpeg Config to Produce H.264 Constrained Baseline Profile

It all begins with Plex and appears to end at ffmpeg as the easiest possible solution. I love ffmpeg! I use Plex running on Linux to stream over home network to a Roku. I've used this for years ...
Dave Gutz's user avatar
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48 views

How to turn-off Anti-aliasing when convert video into gif file with ffmpeg

I want to know how can i turn off Anti-aliasing when i convert video into gif file with ffmpeg, Actually i want ouput in 100% pure aliased gif animation. like this sample image Here i try this but ...
NewPal's user avatar
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Time-lapse vs Drone Video Quality on Linkedin

When we post video on Linkedin, Time-lapase looks bad vs Drone video looks Crisp and clean. Video link and screenshot below. See below Time-lapse footage: Drone Footage Here is the Link to Original ...
Hasnain ali's user avatar
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2 answers
67 views

Why is animated SVG not used for streaming cartoons?

Considering that, per https://video.stackexchange.com/a/18726/34808, animated .SVG can be used (even across the internet, via browsers) as a vectoral video format, why are cartoons not served to the ...
RokeJulianLockhart's user avatar
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31 views

How to KEEP PIXELS when exporting my video?

I’m making a pixel art video, so I definitely want hard edges on pixels. However, Premiere Pro likes blurring them all when I export the video (and also some in preview). Moreover, I have a Pixel font ...
Curio's user avatar
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Why I cannot seem to get a good image in 360p Youtube?

This is a Canon M50 4K footage [manual focus] using Kit-lens, using very fast shutter speed around 1/300, ISO around 400, and Aperture f/4. (No edit just straight from the memory card) ...
Redsbefall's user avatar
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1 answer
309 views

How to encode scenes with different CRF into a H.264 MP4 video with a variable frame rate?

Source Material Having many scenes which essentially are still frames (for many seconds) Commonly found in: Slideshows, Screen Recording or Software Mockup/Prototype ✅ This kind of source material ...
porg's user avatar
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What type of issues does Sony FR7 have with NDI?

What issues does Sony have, if any, with the NDI protocol? Is the image as good if it was recorded in camera? I appreciate any help you can provide. Here is a list of the items Im researching Sony ...
13months's user avatar
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What output to feed

My question offloading video to composite video for Video 8 (in shot)to view on plane, if my hdmi > SD converter output is 576i50 should I set my source output as high as poss (2160p60 or 50) or ...
Rich HI's user avatar
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Is there a way to decrease blurriness in video so that the text is readable?

I have a video of a lecture but the resolution is not great and I can't really read what's written on the blackboard. Is there a way to artificially increase the resolution or decrease blurriness? It ...
Dio's user avatar
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1 answer
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Recording webcam got too big file in 12 hours, spliting the file takes much less space

Sorry I do not give better details, I am too new on this this weekend we left OBS recording a small portion of the screen, with audio, for an university experiment (we have a software that analize ...
Carlos Tiel's user avatar
1 vote
1 answer
727 views

Which gives better quality SCART or S-VIDEO?

I have SVHS video cassetes and Panasonic NV-HS1000B. It has 2 outputs. S-VIDEO and SCART. There is any reason to use SCART and not the SVIDEO output? I was googling but was confused. I read that SCART ...
Aminadav Glickshtein's user avatar
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1 answer
283 views

ffmpeg: video size/quality changes when applying ffmpeg with no filters or other parameters

I've used ffmpeg for years for minor tweaks to sound & video but I know pretty much zero about containers and codecs and whatnot. I've recently had a need to reduce the physical (disk) size of ...
redacted code's user avatar
3 votes
1 answer
3k views

In FFMPEG's H.265 encoder, which CRF value leads to "visually lossless" results?

I am trying to shrink some videos from 1920x1080 to 1280x720 and to achieve a reasonable compromise between video quality and file size. I have decided to give FFMPEG's H.265 encoder a try, and now ...
Binarus's user avatar
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1 vote
0 answers
30 views

How do you achieve this soft/glowish low contrast black and white look?

Watched La Haine 4k version the other day and was captivated by how BFI gave the film a much low contrast soft look in comparison to criterion hard contrast look. I know lightning plays a vital role ...
dee's user avatar
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1 vote
0 answers
19 views

Rendering 3d in AE CS6 is blurry

I'd like to seek help here about rendering in AE CS6 🙏🙏🙏... I'm a noob by the way, I just finished a few 4sec animation and have no problem rendering non-3d compositions... But my first 3d ...
GAC's user avatar
  • 111
-1 votes
1 answer
31 views

How can people apparently manage to capture video in such poor quality in 2022? [closed]

This is something which has baffled me for many years already. I just watched this freshly uploaded video (out of many): It seriously looks like somebody took a ...
Alpers's user avatar
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2 votes
0 answers
302 views

What actually distinguishes various MPEG-4 Part 2 video codecs (divx, xvid, mpeg4, msmpeg4v1, mp4v, etc.)

I recently audited a large folder containing a variety of encoded videos from 2002-2014. Using ffmpeg, I extracted and recorded metadata, including the video codec used on the film. An example command ...
aaron's user avatar
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788 views

Export a video to 4k or 2k with FFMPEG and without lag (UPSCALE VIDEO)

how do I upscale a video to 4k or 2k with ffmpeg? youtube encodes the videos which results in some quality loss of the video. So to make youtube use VP09 encoder on my videos, I have to export the ...
siduck's user avatar
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1 vote
0 answers
40 views

GoPro's denoising artifacts

When shooting a piano from overhead with a GoPro Hero10 Black, the hands' skin texture and knuckle wrinkles are smoothed so much that it looks like a plastic mannequin. It looks like what PhotoShop ...
Camille Goudeseune's user avatar
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1 answer
329 views

How to stabilize DSLR video shot with a tripod in a car

I have recorded videos driving my car. I have setup a Nikon 3200 camera with the 18-55mm kit lens on a tripod in the rear hatch of my car. The tripod sits flat and level in the rear hatch. The tripod ...
zippy's user avatar
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0 answers
55 views

Picture quality of video capture file produced using Virtualdub is excellent when played on my laptop but not on my smart TV. How can I fix this?

I'm trying to digitise some old Hi8 camcorder tapes using VirtualDub 1.10.4 with lagarith lossless codec compression and a Magix USB video converter 5 capture card. When the captured file is played on ...
CMac's user avatar
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0 votes
1 answer
42 views

Why does this script reduce the bitrate of both the video and the audio stream?

I wrote the following script that is meant to remove the unnecessary audio streams, aka dubbing, as well as subtitles from the movies in my collection: #!/usr/bin/bash echo "What is the path to ...
John Smith's user avatar
1 vote
0 answers
433 views

FFmpeg 5.0 vs 3.4 performance

I was trying to compare ffmpeg 5.0 vs version 3.4.6 in how much performance improvements I would get while transcoding a simple 720p video into a H264 video. On my laptop, I noticed around 5-10% ...
angel_30's user avatar
  • 353
0 votes
1 answer
29 views

Idea validation - CRF's as a service

I was looking for validation for my startup idea. Please flag if this is off-topic. Idea: CRF's as a service - When encoding h.264 and libvpx videos, I tend to guess good Constant Rate Factors(CRF's) ...
murage kibicho's user avatar
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0 answers
2k views

H264 AVC codec [email protected] vs [email protected]

When I convert a video with ffmpeg, and use mediaInfo to review the metadata, I see the followings for the video codec: Format : AVC Format/Info : Advanced Video Codec Format profile : [email protected] ...
angel_30's user avatar
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0 votes
1 answer
751 views

How do I verify that the H264 video stream is encoded with a single slice per frame?

I'm a software tester and I need to test a certain requirement for a vehicle camera that I'm not sure on how to test. As in the title it's to verify that each frame is encoded with a single slice. ...
Bivas's user avatar
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1 vote
0 answers
36 views

AE Animation Bad Quality on YouTube

I've created an animation in After Effects, and dynamic linked the composition into Premiere for audio editing. Then I exported from PR using Media Encoder. The exported file looks good, but when ...
Onion44's user avatar
  • 31
0 votes
1 answer
552 views

Why does setting a maximum bitrate in Constrained Quality mode sometimes increase file size?

Short version: Why did my total file size increase when I switched from constant quality to constrained quality at the same crf? Shouldn't this just set a maximum bitrate and thus only either do ...
Finn's user avatar
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0 answers
1k views

MP4 file has incorrect length (duration) and plays back 5x slower than it should

I have five GoToMeeting (GTM) .mp4 recordings that I saved and downloaded from a five-day class I was teaching. Each recording represents each day's appx. 8 hour class duration. I am importing them ...
KurtM's user avatar
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0 votes
1 answer
208 views

How to setup Sony A58 for clear movie recording?

I have a Sony A58 camera and 18-55mm lens. I did some recordings with AF (Auto-Focus). The frames are a bit blurry. They are actually clear, but it seems to me like the camera is taking two shots and ...
iamalminko's user avatar
1 vote
0 answers
129 views

FFmpeg - Loss of video quality when using vf setpts

I created a screen recorder for iOS using FFmpeg. I concat the images into a video which is fine and the quality doesn't change much from the screenshots but when I use setpts to match the video to ...
STerrier's user avatar
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0 answers
23 views

Tips for making choppy video less jarring

I produce a podcast that I also publish to YouTube. It's just two talking heads having an interview. The recording of my most recent guest came through very badly. The audio sounds fine, but the ...
Flimzy's user avatar
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1 vote
0 answers
29 views

360video - POV Learning Scenarios

I'm working for an educational facility for social workers and have a project to shoot 2 scenarios, of physical escalation with therapists and patients with cognitive disabilities, in POV. The ...
Joval's user avatar
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1 vote
2 answers
66 views

Improve quality of recorded screen

I tried a lot of different screen recording software but all of them can't record a video with the same quality I see on screen: looks like there is a unsharp mask, or something similar. Now I'm using ...
Mattia's user avatar
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0 votes
1 answer
220 views

Export DCP from Adobe premier pro

Hey guys I’m struggling to export feature film 2hour 20 min long DCP from premier pro. 1.I already exported 422 Hq. 2.Made separate project with new sq. 3.Using Adobe encoder as well. 4.Every time my ...
Zhan's user avatar
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0 votes
1 answer
276 views

How does scaling work in ffmpeg?

I am new to FFmpeg. I just want to know how I could keep the original scale of the video. The original size of the video is that its frame width is 1820 while its frame height is 720. The original ...
Sargon Torchrise's user avatar
1 vote
2 answers
133 views

What is the difference between lossless and lossy formats?

What exactly are the differences between lossless and lossy codecs? And is one better format better than the other or is it mostly relative?
GAP's user avatar
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1 vote
0 answers
148 views

How to get ffmpeg configuration similar to that of youtube for 480p and 1080p video? I have got a function but the output quality is too low

Hey guys I am learning to develop a website that converts videos to youtube quality (or close enough) 480p and 1080p, I am not much familiar with ffmpeg and struggling with its documentation. I have ...
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