Questions tagged [video-quality]

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15 views

How to achieve the best quality with the least file size for 1 hour long videos

I want to achieve a 1 hour long video from 5 second animation clip with 1920x1080p res, with best quality with an acceptable file size because currently my videos are 100gb + after I render the 1 hour ...
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1answer
340 views

How can I change/reduce the bitrate of AVI files using Adobe Premiere Pro CC or other tools?

I'm using Eprime and Experiment Builder which requires files in AVI format (AVI-XVid). The files are quite small already (various 2 second clips under 1mb), but are still too large which crash the ...
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1answer
462 views

What format should I use to archive video issued from mini DV tapes?

I want to convert and archive movies captured with mini DV tapes. Videos are family movies. Native format in dvvideo is huge (about 220 MB/min). So I am willing to accept video compression but I ...
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1answer
234 views

iMovie 4K resolution to Keynote – apparent loss of resolution

I exported a 4k resolution video from iMovie on my MacBook Pro. I imported it into Keynote in order to crop it. I noticed that upon exporting from Keynote, the resolution of the video was markedly ...
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1answer
293 views

Camtasia Studio video files are too big

I've been trying to export an HD video from a screen recording created with Camtasia studio, but every rendering is returning videos with 80 mb/s of bitrate, I'm setting it to 65% quality, MP4. If I ...
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10 views

Increase video recording efficiency on smartphones

I am working on a smartphone app that records a video and uploads it to the cloud. Now I'm trying to find ways to increase the performance and quality of videos. Given sometimes the bandwidth of the ...
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1answer
930 views

Export Frames of 10 BPC Video File with ffmpeg

I have several hundred 1080p 59.94fps 10-bit-per-channel (bpc) AVC-Intra Class 100 MXF encoded video files. I would like to extract the frames of this video file and export them to disk in a 16-bit ...
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1answer
153 views

Why This Video Appears in Full Canvas?

Rookie video editor here, asking about video canvas. Don't know the right term in video editing but in image editing it's area that is not part of it. This is the video: ...
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1answer
95 views

Bitrate Settings for Minimal Data-Loss

I cut clips from high-quality variable bitrate videos. What I'm wondering is if aiming for the same bitrate as the source video would result in a transparent-quality video. For example: ═════ Source ...
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4answers
233 views

Re-encoding Lossy formats with Lossless formats

I was re-encoding videos downloaded from YouTube with Lossless H.264 (using FFmpeg) because I'm experimenting with CRF=0. I found that resulting videos are much bigger (1 gigabyte) than the original ...
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10 views

Ensuring quality when capturing miniDV tapes for storage with QuickTime

I have a load of old miniDV tapes shot in Standard Definition, and a small consumer DV camera, connected (via Firewire) to an iMac (Big Sur) via a couple of adapters (Thunderbolt to FireWire). I ...
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1answer
322 views

How to prevent blur(?) footage at the recording stage?

My question comes in two parts. First, may I know if my assessment of the quality of the footage in this Youtube movie is correct in the first place. Compare the frames around 2:07 of this movie: ...
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1answer
923 views

Automating QC to find corrupt video files

I have a hundred of visually (!) corrupt video clips in H.264 'hiding' within a larger set of files. As they have been re-transcoded, all of them are now technically OK and will play fine, but will ...
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2answers
106 views

H.265 disadvantages with video dimensions not multiple of 8

Are there any disadvantages (like worse image quality/more compression artefacts) when encoding a video in H.265 with dimensions that are not a multiple of 16 or 8, but instead a multiple of 4 or 2? ...
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0answers
10 views

Can anyone tell explain these UTVideo settings to me?

I am on the lookout for an alternative Lagarith Lossless as some games do not really agree with Lagarith Lossless. I did some digging and learned of UTVideo on the internet but the thing is, UTVideo ...
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1answer
208 views

What is the maximum 2D video quality on Oculus Quest?

If you want to create a 2D video to display on an Oculus Quest VR Headset, what is the highest video resolution the Oculus Quest is capable of displaying? 720p or 1080p or 4K or what? Do the ...
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1answer
432 views

Exported Lossless Video - Output File Was Lossy

I recorded some video-game footage in 320x200 and then upscaled it to 1920x1440 using ffmpeg (nearest-neighbor, lossless libx264). Screenshots of the upscaled footage have pixel-perfect color ...
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1answer
187 views

poor quality video VHS camcorder: is there a fix?

I recently rescued an old Panasonic M40 VHS camcorder. All the electronics work absolutely fine. I bought a pack of VHS tapes and did a quick video test. The video quality is very bad with wobbly ...
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55 views

Why is the quality of my video so bad? (bitrate Zoom versus OpenShot)

I recorded a zoom meeting (saved as .mp4) and made a few trivial changes with OpenShot (trimmed a few seconds from start and finish, and added image at the beginning). Then exported the video trying ...
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1answer
23 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 ...
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1answer
199 views

ffmpeg compress video in fast motion in high quality

I would like to compress a video and in the same time to be in fast motion, and this must have as a result a high quality fast motion video. I tried to run this ffmpeg command which compress video ...
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1answer
111 views

Trying to improve choppy ipad screen capture

I'm trying to improve the choppy screen capture that I'm getting on my ipad. The screen capture plays smoothly when viewed on the ipad itself, however it is choppy when played on my pc in vlc, and ...
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0answers
28 views

How to simulate different levels of lighting so as to capture real world behavior in a video?

I am trying to introduce various levels of lighting in the videos so as to simulate real-world behaviour. I am using the ffmpeg tool for this purpose. So far I have tried changing the brightness to ...
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1answer
1k views

Video quality degrades when uploading to YouTube with variable frame rate

So I use OBS (latest ver) to record my gameplay on Windows 10. OBS settings are: recording format: MP4 Recording quality: indistinguishable quality, large file size Encoder: Software (x264 low CPU ...
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1answer
2k views

Determining original resolution of an upscaled digital image?

It is believed that anime is made at resolutions below 1080p. most anime are [made in 720p]. Very few anime series are produced in native 1080p. Yet if anime is sold on Blu-Ray, it is (usually) in ...
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1answer
25 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 ...
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0answers
24 views

Re-rendering mp4 with much higher bitrate gives worse quality

So I am recording full playthroughs of video games at 40.000 kbps using OBS. I play through the games in multiple sessions, so I end up with multiple clips. I use the following settings to record my ...
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0answers
17 views

Modern video encoders/decoders keep producing compression artifacts: what is the (potential) reason?

Follow-up question for: Grime-like blocking compression artifacts on the decompressed video (H.264). Context: while watching videos from time to time I continue notice the presence of compression ...
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1answer
155 views

compare two video then cut the different

I have 2 video files with the same content, but coming from a different source. They have a slight difference in 'cut' and language dubbing, meaning one can be missing a shot compared to the other. I ...
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0answers
13 views

Detection noise in video

I need to develop algorithm to detect noise in video. But I can't find any concreate algorithm description. I found ffmpeg filter bitplane noise (https://ffmpeg.org/ffmpeg-filters.html#bitplanenoise). ...
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0answers
7 views

Improve video resolution when recording a game

I am thinking to record a game, and this game is horrible with low settings. The problem is: I can put the max settings, but only with 800x600 video resolution. How can I convert a video from 800x600 ...
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1answer
33 views

Why is ffmpeg producing a background?

I am a chemist and since a few weeks I am making short videos with ffmpeg by combining images, I am using the command below (for some reason without profile:v high, powerpoint crashes when I would ...
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2answers
36 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?
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2answers
8k views

Using h264 in loseless mode brings small unexpected results

I got curious on ffmpeg screen capture capabilities and started messing around with a simple realtime capture test in h264. ffmpeg -f dshow -i video="screen-capture-recorder" -video_size 1920x1080 -...
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0answers
29 views

VP9 with ffmpeg low quality problem

I'm testing vp9 codec for the web video platform, and cannot get a satisfactory quality for one movie. This is very dark film encoding with vp9 generates ugly circles. This is the original frame (I ...
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2answers
2k views

4:3 video has 720x480 resolution

I was trying to do some video editing and encoding. I have a so-called SD video that should supposedly be in 4:3 aspect ratio. But instead of 640x480, it is 720x480. Interestingly, when I play it with ...
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0answers
29 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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1answer
146 views

Benefits of component/RGB connector (vs. S-video or composite) for VHS capture?

I know it's 2020 but I still have a few VHS tapes to digitise. I do not expect the picture quality to be necessarily good enough to worry about this question. Still, I would hate to lose any tiny ...
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2answers
3k views

Windows 10 miniDV import using Movie Maker

I'd like to import my miniDV tapes. I'm using Windows 10 and the built-in Movie Maker software. My goal is to get the highest fidelity import from the miniDV tapes. I did a trail run and it looks ...
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0answers
24 views

Does YouTube accept AviSynth .avs scripts for uploading?

Without reencoding videos first? Is it possible to browse for .avs file and upload it, provided AviSynth is properly installed locally?
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2answers
2k views

FFmpeg does not preserve colors after resizing

I would like to resize a 4K mkv video to 1920×1080 with ffmpeg version 3.4.6-0ubuntu0.18.04.1 on Ubuntu 18.04. The original file has the following features: Input #0, matroska,webm encoder : ...
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0answers
19 views

Out of gamut problem detection

Are there any free tools (or with trial version) to detection Gamut problems in video file?
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0answers
22 views

Recording in 200 Mb/s + on smartphone

Is it possible to record video with a bit rate of 200 Mb/s or more on a smart phone (iphone or android)? I've found a few apps that supposedly get you up to 100 Mb/s, but I'm hoping for as close to ...
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3answers
78 views

What is the video equivalent of vector graphics?

Images and videos have their own quality standards and protocols. There are either raster image file formats (.gif, .jpg) or vector graphics images (.svg, .pdf). No matter how much you zoom in on ...
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0answers
29 views

Why is the quality different on two videos with exactly the same codec / bitrate

I do a lot of video converting with programs like Format Factory and Any MP4 Converter. I downloaded season 2 of The Black Sails. It's roughly 10 hours total video at only 1.95gb with SURPRISINGLY ...
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0answers
21 views

recording uncompressed or > 150000 kb/S video on a smartphone or tablet

Is it possible to record uncompressed or > 150000 kb/S video on a smartphone or tablet? If so, how and what devices are compatible? I am able to do this with cheap logitech webcams, however the ...
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0answers
20 views

Why does my ipad/macbook video camera quality not match logitech hd c270 quality?

I am trying to write a program that takes a video of someone's face, extracts the RGB values, and then uses the color change (imperceptible to the human eye) to map onto heart rate. When I use a ...
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0answers
28 views

Are there video motion tests (to point camera at) to assess encoder settings, rates, etc? (currently working in OBS)

I want to measure the appearance quality of motion against a variety of OBS settings in a talking heads video. What is a good way to test for motion in a video recording/capture running 15-60 minutes? ...
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1answer
601 views

Why both videos are of same file size?

I am using ProMovie Recorder to record high quality videos using iPhone X, and I noticed a weird thing today. Here's what I did: I recorded a 4K 60fps video for 6 seconds (HEVC encoding). I recorded ...
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0answers
62 views

Kdenlive preserves original quality

Sometimes I use Kdenlive to cut videos because it is convenient. Something bothering me is that the application goes to the re-render process which has no point. I also have no idea what quality to ...

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