Questions tagged [video-quality]

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3
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0answers
19 views

What is this colour blocking/ banding i'm seeing and can it be corrected for?

See the attached image to see the artifact I'm refering too. There appears to be blocks of oversaturated blue in the water. I'm fairly new to video editing, so I'm not sure which terms to use to ...
0
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2answers
25 views

Can ffmpeg downsample pixels perfectly?

I've tried all the swsflags options and figure the answer is no, but it can't hurt to ask just in case. For example: downsample from 1920x1080 to 960x540, then upsample back to 1080 using the ...
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0answers
11 views

video steganography frame data loss

In video steganography after embedding image with data and converting it back to video we sent it to receiver. While decryption the video is turned back to frames, but the embedded data is lost in ...
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0answers
26 views

Is there a camera that records video with a quality and style similar to the Black Magic Pocket 4k?

I was looking for a camera to record videos. My aim is to record videos to make films and music videos. I know there are many factors that are independent of the camera to make videos with a '...
0
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1answer
24 views

Video Quality Measurement test tool

I need to measure streaming video from various different codecs and be able to tell which one is better. What will be the best metrics to look for? Is there a free tool that can help with this.
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0answers
10 views

Which camera is better for recording 'cinematic' videos and films?

I was looking for a DSLR camera to record videos. My aim is to record videos to make films and music videos. I know there are many factors that are independent of the camera to make videos with a '...
0
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0answers
7 views

Is QTGMC still the best deinterlacer?

From reading various video forums, QTGMC seems to have a reputation as being one of the best tools for deinterlacing video (at least from an open-source perspective), with Yadif in second place. Is ...
1
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1answer
20 views

Long distance, low light

I'm taking a video next month which will be in a dark conference room with a well lit stage. I need to set up a camera to video the presenter, but this year we have many more attendees, more tables, ...
-1
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1answer
17 views

How can I render a 720x480 clip to playback from YouTube in 1080p?

I'm working on Sony Vegas Pro 14 and I'm editing AMV. The anime clip's resolution that I'm editing is 720x480 - I saw the same clip edited on YouTube and on the settings it was showing that I can ...
0
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1answer
17 views

How to distribute multiple clips on the timeline, by Date and the time of the first one?

I have an existing project in Adobe Premiere 2017 and I would like to import multiple clips in it. I already have the primary camera in sync with the Audio, and I would like to bring the secondary ...
1
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1answer
15 views

Using youtube-dl: Does adaptive bitrate (ABR) affect image quality?

I'm using youtube-dl and ffmpeg to get videos/frames of videos from the web. I was told that youtube (and others) use adaptive bitrate streaming, so depending on the network conditions of the user the ...
0
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0answers
35 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 ...
0
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1answer
34 views

avidemux shows better preview than vlc player

I shoot a video in nikon D3400 and tried to play in vlc and native player of ubuntu. But avidemux preview is much greater than any of these two. Any way to get the quality of that preview for my video....
0
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1answer
89 views

SDR to HDR (High Dynamic Range) Converter?

I've heard that it's possible to convert SDR videos to HDR and get reasonable results. Obviously, this isn't as good as having source HDR content, but I'm really curious and would like to try this ...
1
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1answer
46 views

How to prevent frame smoothing (i.e. get really sharp frame images) when making a video with ffmpeg?

I have been digging around here and on the ffmpeg site trying to find some commands to use to generate a movie from a set of images. The command I tried that gives me a video I can watch on my MacBook ...
0
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1answer
31 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 ...
0
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4answers
47 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 ...
1
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1answer
151 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 ...
0
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1answer
36 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 ...
2
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1answer
24 views

Recording a two speaker event with large audience

We are doing regular events with two speakers on the floor who have their own presentations in parallel. The event is a live hacking presentation, one speaker is the moderator and victim, the other ...
0
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1answer
37 views

How to output high quality 360 VR video with Premiere Pro?

When editing a 360 video in Adobe Premiere Pro, I noticed that if I import the video into the program and export it again without any additional changes, the resulting file size of the output file is ...
0
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1answer
8 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 ...
1
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2answers
25 views

How to shoot my whole life from first POV?

I would like to shoot whole my life (24h, 365d etc) on video, like as through my eyes. However I came to dead end trying to match recording times of modern action cameras, the battery change hustle, ...
0
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1answer
29 views

Objective video quality assessment

I'm trying to develop a tool that given a video (without a reference video), it can measure the quality. Basically given some thresholds, it assigns them a rating (I just need 4 classes 1-4). Since we ...
2
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0answers
303 views

Sony AVC vs. MAGIX AVC vs. MainConcept MPEG-2: what's the difference?

In VEGAS Pro 16.0 I'm given (at least) three options if I want to render a 1080p 30fps video for YouTube upload: Sony AVC/MVC, template "Internet 1920x1080-30p" Use this setting to create the ...
0
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1answer
338 views

FFmpeg No such filter error

I'm trying to use FFmpeg to create a new video with some frames repeated and black frames inserted inside. Here is my command: #! /bin/sh fn="Drifting with Cars.mp4" # ffmpeg -y -i "${fn}" -ss 00:00:...
0
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2answers
35 views

Downsample in Youtube or in editing software?

Target platform: Youtube Target resolution for audience: Full HD I record 4K in order to get better image quality from smartphone (2x birate of FullHD). Should I resample and export the project in ...
0
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0answers
15 views

What is meant by Average Content Distance in Videos?

I'm reading a research paper on generating/synthesizing videos: MoCoGAN: Decomposing Motion and Content for Video Generation To evaluate the generated videos, they have used a metric called 'Average ...
1
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1answer
43 views

Sharpness of Canon 80d

I am trying to figure out the sharpness while shooting video with the Canon 80d. I find that the video kind of never appears to be in focus. If I take pictures of the same things the image quality and ...
1
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0answers
126 views

Corrupt frames: what to do

I’ve discovered some corrupt frames in the footage I am working on (.mxf format, shot on Sony PXW 70, I only have access to the files copied to the hard drive, and the broken frames are in the ...
1
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0answers
32 views

Before I throw away these massive uncompressed VHS digitizations, what kind of post processing can I do to improve them?

An uncompressed digitized VHS tape is like 60 gigs. Obviously way too big. I can compress it down using H.265 and get basically the same quality. But before I do that, is there any production ...
1
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1answer
125 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 ...
-1
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1answer
26 views

What is the good video equveilent of 1300D?

I was surfing the net and I found this answer. Bottom line with the canon rebel series cameras is that the video is pulled from a low resolution capture of the chip which is normally used for ...
0
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0answers
23 views

correct OpenShot settings to avoid the jitters

This video with spaceship building instructions was made with OpenShot. It is jittery. It was shot with a Samsung Galaxy S9. Here are the details I dug up from the source and final video: | Thing ...
0
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1answer
42 views

Video Assets to test transcode quality

I was wondering if anyone knows from where I could get a few (short) video assets in high bitrate to check the quality output of a transcoder. Some context: A few years ago I was working on a VOD ...
3
votes
2answers
95 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 ...
2
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1answer
26 views

Cheap or diy lighting for video production

I am new into video production. I am a maker, I do a lot of electronic projects and write the step by step guides about it in several places of internet. From now I would like to make video about my ...
1
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1answer
46 views

Do video containers influence the video quality?

https://en.wikipedia.org/wiki/Comparison_of_video_container_formats Understanding containers and codecs I'm just confused because the information above seems to indicate containers are simply chosen ...
1
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1answer
294 views

How to combine and optimize ffmpeg filters to avoid encoding multiple times?

I never worked with ffmpeg before and I'm wondering which optimization I can take for my situation. In a loop I have multiple input.mp4 files which I first convert one by one to have a common scale ...
4
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2answers
45 views

what kind of action cameras are good for 1080p video onboard a high moving object(more than 800kph)?

I'm working on a project that will have a camera onboard the object for FPV as it moves in the air at very high speeds. What kind of frame rates are good to transmit and/or record onboard the flight, ...
3
votes
1answer
43 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? ...
3
votes
3answers
82 views

Frame capture from videos: I-frame vs P-frames

I'm trying to capture various frames within a x264-encoded video files into png files (in python), and then compare the quality of them: cap = cv2.VideoCapture(filename); //get frame_number for ...
3
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1answer
66 views

How to fix video shot vertically on a smartphone?

I recently committed the crime of shooting video vertically, and now when played anywhere except on my phone the video renders sideways. What is the best method to rotate it (using PC software), ...
1
vote
1answer
27 views

How can I replicate C-LOG in a Canon DSLR?

I shoot almost all my video footage on Canon DSLRs (APS-C sensors if this makes any difference). I know that true C-LOG isn't available on DSLRs and I've seen many sites that claim to sell "C-LOG" ...
1
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2answers
214 views

Tips for shooting professional POV footage

I'm working on a video for a client and they are wanting to tell a story in video shot entirely in POV. My initial thoughts were GoPro but i think it doesn't give the same quality as a DSLR. I'm ...
1
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1answer
157 views

FFMPEG LIBVMAF segmentation fault

I am trying to compare two videos using the libvmaf in ffmpeg 4.0. I have compiled and installed from source VMAF and FFMPEG and FFMPEG has built-in support for libvmaf. That's the ffmpeg ...
0
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3answers
24 views

Is it possible to make a movie with todays smart phone?

I have LGv30+ which is capable of recording video at 2k & 4k resolution and most smart phones available in market have capable of recording video in 2k resolution. Is video shot with these ...
3
votes
2answers
313 views

How should I interpret the results from Netflix VMAF

I've been encoding some clips and then analyzing them with the VMAF tool from Netflix, but I don't know how to understand the results. This is the overall mean section of one of my tests. ...
2
votes
1answer
778 views

What is 1200p HD?

I'm looking to purchase a borescope, and many of them state their video quality as "1200p" HD. Surprisingly, I've found nothing definitive as to what that means. The closest answer I could find was ...
-2
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2answers
90 views

What kind of camera do I need to record a video with the quality that is in the linked YouTube video? [closed]

Please provide camera models if possible. Not knowing this is driving me crazy haha