Questions tagged [video]

Video is the technology of electronically manipulating still images that represent motion.

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FFMPEG: "smart encoding" when join clips

is it possible join some clips of h.264 (or h.265) without re-encoding, (or minumum re-encoding, only where clips touch themself? Thanks!
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Adding a color background to an existing Alpha Channel .mov video

I am trying to add a simple solid background to an .mov file with premultiplied alpha. The result I get contains blacks in the gradient/motion blur, meaning I would need to convert the video from ...
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Logitech Brio Ultra HD webcam together with Shure MV7 mic, both cabled to a Windows laptop - feasible?

I quite like the look of the videocamera function of the Logitech Brio Ultra HD webcam, but its audio function not so much and therefore I would prefer to use my Shure MV7 mic. My question is whether ...
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ffmpeg VBR 2 pass with concatination and normalization of pass log possible?

I have n number of arbitrary interlaced/non-interlaced videos being normalized through ffmpeg cmd N to a standard size, standard framerate, standard audio and standard visual quality for DVD burning. ...
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Adaptive streaming with ExoPlayer in Android

I have the following code that uses ExoPlayer 2.4.0 API that simply plays a MPEG-DASH video. As I understand it, based on the estimated bandwidth, it selects the right track. But whenever I run it, it ...
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Fix screen recording in a prerecorded video

Since I can't find any answers elsewhere, I may as well ask here – I have a video in which there is screen tearing present in the recording, not having anything to do with my monitor or graphics card. ...
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How to edit my Playstation 5 4K gameplay?

Members. I'm facing a few issues while trying to edit 4K gameplay footage from my PS5. PS5 has two options to capture gameplay: 1080P (.mp4) 4K (.webm) First, the captured 4K footage extension is ....
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How to play Video TS folder in VLC or convert it to MP4

I am trying to play a DVD by copying the contents (a Video TS and a Jacket_P folder) to my computer. I copied the Video_TS and Jacket_P folders from a DVD to my computer. The Video_TS folder has the ...
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how to change image overlay color using ffmpeg like instagram image filter

i have use colorchannelmixer but it showing error. I'm trying this matrix = '0.39,0.769,0.189,0.0,0.349,0.686,0.168,0.0,0.272,0.534,0.131,0.0,0.0,0.0,0.0,1.0'; ffmpeg -i input....
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Some questions about KDEnLive

In kdenlive's spectrum how can I 1- change the line into a circle? (something like below picture) 2- increase value of height of line? 3- mirror changes up and down of the line? (Like picture below)
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How we can add external vtt subtitlle URL in HLS?

Currently, I am only able to change the subtitle that are present in video, but now I want to add a new subtitle using vtt URL.
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FFMPEG inserts extra audio frame at the begining of first chunk in HLS

I'm trying to reencode input HLS video (h264/aac using ts segments) from Nth to Mth segment into new HLS video. I do it by creating new HLS media playlist containing only segments I need (ie from 4th ...
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How can i do overlay subtitle with ffmpeg like in the links provided?

I need a script for ffmpeg to do this: Background color (drawbox) for all words like this:
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I have a Samsung Galaxy S10e and I record videos in UHD 30 fps. How come there are "Extra" frames?

When I am in post, for example Mocha, doing motion tracking - it really makes linear planar tracking more difficult with these random "extra" still frames once in a while. It happens without ...
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What is the best format to digitalize Video8

I would like to digitalize some old Video8 tapes (e.g. SONY Video8 MP60 8 mm, single play 60 min.) Unfortunately, I do not have the time to digitalize them by myself. I found a lot of providers online....
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Combine overlapping video clips into one non-overlapping file

I have over 500 ~30 second (length varies) clips from a now deleted Twitch livestream that I would like to reassemble into one file. However many of the clips overlap each other (some might even be ...
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How to put a trailer clip in the middle of the main video with FFMPEG?

I have two videos of the same format encoded with the same codecs. I want trailer.mkv to be played after n minutes in the middle of main.mkv. After playing trailer.mkv, the rest of the main.mkv will ...
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Issue after importing video in Premiere

I imported some videos in Premiere Pro (MOV format, captured with iPhone), but after adding them to the timeline, they start to have issues, like video and sound not sync, and videos that repeat ...
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Cabinet projection camera view in after effects?

Is it possible to get a plugin to change the normal camera view into something like cabinet projection in After Effects? Cinema 4d has something called gentleman but I don't know why it is not called ...
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1answer
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How to choose a bitrate when converting between formats?

I have a number of video files I need to convert to "regular" .mp4 format to view on my computer. The format they are in is not supported by my device (the driver has not been backported to ...
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I'm buying a 100 cpu clusterfarm How do I get them to work in tangent from a single Windows OS terminal?

I want to create a Deep learning server that automatically scouts content and generates new content that I can then select from using Deep learning and GANs (video) leveraging the Adobe packages. I ...
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Removing only chapter data from mp4 not video or audio tracks

I have an mp4 video file with chapters. I would like to keep the video and audio data but not have them separated into chapters. I would preferably like to do this without re-encoding or suffering any ...
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How to build a MPEG DASH prototype system in Android

I'm trying to build a system to showcase how to use MPEG-DASH on Android. Basically, how to prepare a set of quality representations, segmentations, the player settings (if any), etc. What is the ...
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How do I mask a video in After Effects?

I have a video of a moving object but i don't want the background. How do I remove the background but keep only the object throughout the video?
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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 ...
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Live stream of a website

I need to live stream a website that contains image, video and audio to Twitch.tv. Researching a solution brought me to this Github example that runs on Heroku.com. Dockerfile: FROM jrottenberg/ffmpeg:...
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81 views

FFmpeg Optimized File Size Video Loop

I am attempting to create a video loop by merging a 15 second video with about 4 minutes of audio. After finding a similar question, I found a command that loops the input video for the length of the ...
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1answer
45 views

Combining multiple commands to render out different formats, while also resyncing the original file, and not have to render that one out first

After recording a live show, there are several tasks I need to do before I can render out the video file to different formats. I need to trim the file, and then resync the audio as well. After this I ...
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77 views

Insta360 Studio incorrectly displays .insv 360 video file as a black video, static, or distorted monocular video

I have a Insta360 video recorded on an Insta360 One X, and I'm trying to get it to display correctly. The video was displaying and exporting without difficulty until I updated Insta360 studio to 2021 (...
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97 views

Authentic VHS tape effect in Premiere Pro

Summary I'm making an artwork and here's how it goes in a nutshell: A fictional movie scene that was (1) shot on film in the '60s, (2) restored in VHS format in the '80s or '90s, and (3) restored ...
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19 views

what is aspect ratio and how i can increase the width and height to match the aspect ratio?

I have a video with 480x480 width and height and my friend asked me to look if I can change it to the aspect ratio of 16:9 but he said that it will become 848x480 How can I calculate that? if i am ...
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ffmpeg video command still with black screen

I am using a screen capture component in delphi that I will use in my program, by enabling the recording option with the command ffmpegLGPL.exe -re -i% PIPE% -c: v h264 -threads 8 -profile: v baseline ...
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How do I properly de-interlace footage in Premier pro ( without scan lines)

I has some super 8 footage digitized a few years ago, unfortunately they captured it then encoded it to a DVD. I first experimented with handbrake to extract the footage then imported it to Premier. ...
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53 views

.EXE VIDEO CONVERT TO MP4

I have a video that extension is .exe. I try to open this file in Windows but I can't. I try to convert this file to mp4 but again return empty file. How can I open .exe video?
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124 views

ffmpeg to cut subtitle file in sync with the cut video

I managed to cut the video and keep subtitle in sync by embedding the subtitles in the video: $ ffmpeg -i sample-mp4-file.mp4 -hide_banner \ -vf subtitles=subtitles.srt -ss 0:30:00 -t 1:33:31 \ ...
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Remove motion blur to reveal text in a video

I have some footage of a vehicle in motion, shot from a static CCTV camera. What are the most effective techniques to recover more detail from the vehicle (number plate, text on vehicle etc)? All the ...
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How can I/Is it possible to create a virtual screen on macOS and send it via NDI to an external monitor?

How can I (is it possible?) to create a 'virtual' screen on macOS and send it via NDI to an external monitor? You can do this with AirPlay and Sidecar, I was wondering if possible with NDI. Or do you ...
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Removal of select subtitle tracks and audio tracks from mkv file in batch

My problem is that I have 2 subtitle tracks, one is named "English signs and songs" and another is called "English full". I also have English and Japanese audio tracks (dual audio)....
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ffmpeg libx264rgb error

When i was using ffmpeg i use libx264rgb to convert videos. But when I converted a video there was a error. I will put you a video so that you can see what happened. Original: https://archive.org/...
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Video editing script to create text with matching audio

I'm trying to write a script that can take a text document and turn it into a video. The task is pretty simple, when the audio plays, show the matching text on screen. What I need to do: Add ...
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What are the differences between Direct Stream Copy or Stream Copy in Virtualdub?

Can anyone explain how the "Stream Copy" and "Direct Stream Copy" in Virtualdub works? And which one is good for creating a direct copy of a video stream?
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How do I change the speed when I play a video on Movavi?

I was editing a video using Movavi and I don't know exactly what happened, but now when I play the video (still in the softwere) it is being played faster and with no sound as if I changed its speed. ...
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16 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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7 views

Adapt video recording and playback according to the device

We have a prototype that records video and shares it to other devices to play. How can we customize the video recording and playback experience, considering mobile vs. desktop and the bandwidth ...
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Dark lines across video

I shot a studio interview and found out, that it has these strange horizontal lines all across the frame. They are visible throughout the whole clip. Here's a closeup with enhanced contrast: I've ...
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1answer
38 views

Put two or more images on video

According this I try to put two pictures on video ffmpeg -i video.mp4 -i photo01.jpg -i photo02.jpg -filter_complex "[0:v][1:v] overlay=25:25:enable='between(t,10,20)';[0:v][2:v] overlay=25:25:...
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Do i need both microphone and audiorecorder to start my video recording

I want to start recording udemy videos, i want to make proffessionally and esteticly looking good, i started ordering 3 lighting i decorated the place Saramonic SmartRig+ Zoom H1n Portable Recorder ...
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Killed my old laptop. Any recommendations to help extend the life of my M1 Macook Air internal SSD?

I recently killed my old (2012) Macbook Pro's hard drive by doing something I didn't realize was a problem. I attend a LOT of training webinars and Zoom video calls with clients: 5 to 10 webinars and ...
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ffmpeg - sweeping opacity

I have two videos of 1 minute each one. I would like to start the second video at the 50 seconds of the first one. Then I would like to decrease the opacity of the first video from 100% to 0 in the 50-...
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220 views

Is there any plugin or effect in After Effects where each of many photo layers turn visible in a random order?

Basically, I want to make a collage of my artworks. All are square images. Let's consider there are 48 photos. So I will make a grid in Illustrator of 8x6. Each photo in a separate layer. Now I'll ...

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