Questions tagged [video]

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

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4 views

How multi live streaming works?

So what i am looking is at Zoom like functionality! Like multiple users can stream at once and and a single video with multiple videos is created. What is the process of getting the multiple videos ...
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Is it possible to repeat 4 input frames every n frame?

I need to repeat 4 input frames every n frame , for example frame 0 to 4 , 100 to 104 ,... Please tell me how to do it?
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8 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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is it possible to split open GOP video to smaller segments without frame dropping?

I want to split an open GOP video to smaller MP4 segments , but using Segment Muxer , 3 frames are lost. the GOP size of my video is 15 (M=3 N=15) and I use mpeg2video encoding. is it possible to ...
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Is there any program/subtittling program to add timestamps in a text file?

Hello everyone i'm currently editing a script for dubbing and I need to watch the video and create timestamps with the translated lines for the voice actors to voice. I'm new at this so I'm wondering ...
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23 views

How to get external mic working through DSLR camera on Zoom on Mac?

I have tried taking the advice and plugging my mic into my camera, but it is now not working, for the question Noticeable video delay when connecting to laptop and DSLR + external mic. Now I am not ...
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1answer
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Noticeable video delay when connecting to laptop and DSLR + external mic

I have a Canon EOS RP DSLR camera that is connected to the adapter through the battery, and plugged into a Pengo HDMI capture device, which is plugged into a USB hub (contains 16 USB ports), plugged ...
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Trouble combining audio and video streams

I have two streams, one audio and the other video. I'm trying to combine them using this command: ffmpeg -y -i audio.m3u8 -i video.m3u8 -c copy Video.mp4 I found this syntax here: https://video....
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How to concatenate videos with different number of streams?

I have two video files (.mov), first one contains only video stream and the second one contains both video and audio streams. Is it possible to concatenate them? I have tried using ffmpeg but it doesn'...
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32 views

Unable to reduce size in Adobe Premier Pro 2020

Today, I've used Adobe Premier Pro 2020 for reducing a video size. I have a video of size 400 MB that I have imported into Adobe Premier to reduce its size. Here the estimated file size is shown is : ...
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1answer
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Can't find long-duration nature videos in 4K

I'd like to purchase long-duration nature videos (30mn or even 1hr), in order to use them for a personal musical project, and then share on YouTube. So, basically I also need to buy a license for that....
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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
29 views

What causes the 1080p version of a video to be blocky but the 4k version look perfectly fine?

I'm a complete beginner in all things photography, video compression and YouTube uploads so please bear with me. I recently uploaded a 4k 30fps video to YouTube, and when I select the 4k option it ...
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How do I animate a clip's scale in FCPX?

I am trying to decrease the size of a clip by having it shrink over the span of a few seconds and disappear into the center of the frame. I couldn't find an answer elsewhere online but perhaps I didn'...
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32 views

How to averagely extract frames from a video using ffmpeg by specifying “fps”

I have a job of using ffmpeg to extract the frames averagely from a video, with different fps. I use this command for it. ffmpeg -i input.mp4 -r specified_fps -q:v 2 image %4d.png And I have 3 ...
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Why are videos playable in cellphone NOT playable in laptop?

I recorded 20+ videos with my smartphone and copied them to my laptop. Most of them were fine but about five of them were not playable, allegedly file type unsupported, file extension incorrect, or ...
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Very weird behavior of video dimensions

I have a video (for some testing), when I check dimensions in properties, it says 640x1136 pixels. To cross check dimensions, I played it in VLC media player and took a snapshot from there, which ...
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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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Jerky motion ("judder:) on CGI 24 fps video horiz. pan

I made a 24 fps CGI video, rendered to individual frames. I can't link to the video, as it shows a devl. prototype. The scene is a trucking pan: the cam moves perp. to the view axis. In After FX, I ...
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Low latency on SRT stream

I am new to this and wondering, how can I get the lowest latency sending an SRT stream? I can’t seem to get under six seconds. Using, latency=10000
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Video Stream Loop FFMPEG for YouTube, what is missing here?

I am using FFMPEG for streaming 24/7 mp4 video on youtube. The video is somewhere in 2 minutes, the stream starts but does not go on replay, what should I do? I am using this code: @echo off d: cd &...
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how do get video down to reasonable size?

I have lots of livestreams downloaded most of which are 1 hour 2 hour long so 700mb to 1.1gb basically but im looking to shave off as much while preserving quality and sound they are all piano covers ...
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How do I add a second soundtrack in final cut pro?

I have an old movie for which I've added music and now I want to add some audio sound clips as well. How would I go about adding the audio clips along with the music which is already present?
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1answer
32 views

Keep residual image of an element in a video

I have a video of a static background with a spider which is the only moving element. The spider is going forward for a few seconds, then the video stops. I want to summarize the video into a single ...
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1answer
26 views

FFmpeg: Getting this error while trying to add a logo to video (Unable to find a suitable output format for ..)

Hey guys I want to add a logo to my video with ffmpeg but I am getting this error while running the below command. What is the reason? Please do help. `Unable to find a suitable output format for '...
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Extract subtitles in time range using ffmpeg

I have original video (with subs) and cropped version of it (without subs). I need to add subtitles from original video into cropped in appropriate time range. I think the best way to do is: Extract ...
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1answer
23 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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1answer
39 views

How can I add video effects like these to my video [closed]

I want to add a beginning like in this video Which software should I use? I am completely clueless. Help
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Only audio is playing when trying to replace the audio in video

I am trying to replace the audio with a new audio, I have gone through some SO questions and still having trouble solving the problem. As of now, I am getting only the audio with the specified ...
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Is an IDR frame the only type of RAP (Random Access Point)?

I understand that IDR (Instantaneous decoder refresh) frames are what are known as Random Access Points. But are they the only RAP frames?
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1answer
15 views

Compress multiple videos at once on a Mac

I want to reduce the file size of a bunch of videos at once on my Mac. Would you know any free tool that does that or any way to automate a loop in Automator to pilot Handbrake to loop on a given ...
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1answer
28 views

What cable for 200' run between camera (video/audio) and ATEM switcher

I am running a video/audio signal from a camera in a lobby to a Blackmagicdesign ATEM switcher that are about 150' apart but cable run will be closer to 200'. The video/audio from the camera in the ...
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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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draw rectangle when pixel in video has specific value using ffmpeg

My question might seem a bit confusing but what I want is simply to look at a specific pixel value and when it has the value eg. (25,25,25) in rgb, it would use the drawbox filter to draw a rectangle ...
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39 views

Audio clipping after amerge in FFmpeg

Hoping someone out there can help me with this audio issue I'm having using FFmpeg. I've written a bash script using FFmpeg that processes as source a broadcast quality ProRes (HQ) file with four mono ...
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12 views

Frame rate (FPS) multiplied by duration (sec) isn't equal to total frames

On a YouTube video stats, apparently, the frame rate is 30 fps: Total video length is 1:32 i.e. 92 sec. Total frames = frame rate x time Total frames = 30 x 92 = 2760 So why are frames reported as ...
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How to detect “late” audio streams in MPEG-2 TS (with ffmpeg, ffprobe or mediainfo)?

I am recording from my Linux TV-Sat receiver in MPEG-2 transport stream (mpeg2video) format. The recording starts before the actual movie, so it usually only has a single (local) audio stream in the ...
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1answer
20 views

Premiere Pro 2021 Refusing to Load My Project

On Premiere Pro 2021 whenever I try to work on a project that has multiple layers, it refuses to load it and instead I am met with “project is pending” and it refused to load it and then crashes. I ...
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1answer
28 views

Essential Graphics - Media Replacement issue

I was trying to improve some of my work templates using Essential Graphics, which I absolutely love, for the first time I'm adding the media replacement function to it but it doesn't seem to work. I'...
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1answer
41 views

Video format for instagram

I need convert to the .mp4 video with this requirements. Container: MOV or MP4 (MPEG-4 Part 14), no edit lists, moov atom at the front of the file. Video codec: HEVC or H264, progressive scan, closed ...
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1answer
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Removing frames from a video - how to make playback not pause during removed frames (i.e. assign new timestamps)

I am working off this answer here. I have calibrated my video such that the following code perfectly exports the frames I want to keep ffmpeg -i in.mp4 -vf "blackframe=amount=0:threshold=92, ...
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56 views

FFmpeg loop video for 30 seconds generate a big video size

I'm trying to loop a 3 sec video to make it 30 sec, I use the following command : > ffmpeg -stream_loop -1 -i input.mp4 -c copy -t 30 output.mp4 It's working fine, but with the output size 40 MB, ...
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1answer
46 views

get metadata for video start time with ffmpeg

I need to get the start time of some videoclips (very precise, ideally precise at 0.1 sec). I have been told that I may be able to do so using ffmpeg. I managed to install it but am not sure how to ...
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1answer
18 views

Find out video's resolution & duration

Any easy way to find out a video's resolution & duration? I know one way is to parse the ffprobe's output. But, I don't know how consistent the output is among different video files. and most ...
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8 views

Obtain time of video

I have ~50 video clips (.mp4 and .mov) that have been sent to me through cloud services. Each video is a record of a competition and has been cut (they started to record ~10 minutes before the start ...
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1answer
25 views

Why is there an orange cross going through my clips in premiere pro

Whenever I put an effect on one of my clips an orange 'X' goes through the display and the render. Does anyone know how to fix this?
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75 views

Horizontal to vertical video using ffmpeg

I want to make a horizontal video get converted to vertical video using FFMPEG for automation purposes. I tried with this, which works for vertical to horizontal ffmpeg -i input.mp4 \ -vf 'split[...
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26 views

Transcoded video become shorter (playback length) and plays at double speed

Currently I am doing a project where I am recording live video (720p25) with a video capture card (stretch card). This live video feed is recorded into a 3rd party proprietary video recording software....
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18 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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Creating video using Image frames in mencoder

I have a folder containing 1701 image frames named "frame0000.png", "frame0001.png",..., "frame1700.png". When I try to convert them to a video using this command: ...

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