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Questions tagged [video]

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

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15 views

How could I create a time lapsed image

How can I create a time lapsed image like this? (they are the same drone at 6 different time instances) I am not a professional video editor, but rather just an end user. So is there any online ...
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0answers
5 views

How to get total number of chunks/segments from .mpd/Dash URL using MSE in javascript

Can any one please advise how to get total number of chunks/segments from .mpd URL using Javascript Media Source Extension? Thanks,
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1answer
17 views

(Efficiently) Extract multiple clips from a long video, possibly with ffmpeg

I've got a long video (2 hours at high resolution). We might as well assume it's in mp4 format, because it's in an AVCHD, and I'll have to extract and convert it to mp4 anyhow. I'd like to extract ...
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1answer
16 views

How to make ffmpeg to generate NUMBER_OF_BYTES tag for every stream in file output?

Can ffmpeg count size of stream in bytes? I want to write NUMBER_OF_BYTES tag for every stream in file output on the fly. Like MKVToolNix does. Input #0, matroska,webm, from 'm:\S01E18.mkv': ...
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0answers
37 views

How to use subtitles filter to a video VFR ( variable frame rate ) video?

I have created a VFR (variable frame rate) video from a list of images by using the following ffmpeg command. ffmpeg -f concat -i concat.txt -vsync vfr -pix_fmt yuv420p output.mp4 where the concat....
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1answer
27 views

Question about ffmpeg's overlay variable t

I've got an ffmpeg command that overlays a line on a video and moves it from left to right while the video plays: ffmpeg -i clip.mp4 -i line-with-transparent-white.png -filter_complex "[0:v][1:v]...
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0answers
21 views

GUI equivalent for ffmpeg eq filter parameters

I was wanting to know if anyone is aware of a GUI tool that mimics or is similar to the eq video filter parameters in ffmpeg. The eq filter is used to set brightness, contrast, saturation, gamma, etc....
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1answer
6 views

Help me with lyrics sync

I am looking for a program that can help me sync lyrics. I mean, I have txt with lyrics and I want program to be able to sync them with just press and release of any button. At end I want program to ...
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0answers
11 views

Stop Handbrake showing filenames in Text on 1st second of video

When I am creating videos using the Handbrake software, it puts the filename I am using in white text on the start of the video. Is there a setting to stop this or some way around this? I would ...
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0answers
33 views

FFmpeg: Align Video & Audio of Desktop Capture

I am using FFmpeg's built-in gdigrab & dshow to record the display & audio of my system. I am encoding to uncompressed H.264/AVC video & uncompressed PCM/WAV audio. I had been having two ...
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0answers
13 views

What are the names of the video effects used in this video link

Here is the video link: Below are the time stamps 1:00-1:03 1:15 2:17-2:19 I am still quite a novice. I would like to attempt these myself, but do not know the ...
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0answers
8 views

Every time i try to crop an image on Vegas 16, it just disappears

Basically i add a image to the video track and i can see it, but when i want to go ahead and crop it, the imagine just magically disappears, but it still shows in the video track that the image is ...
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1answer
48 views

How to create the text effects in short videos like this

I would be very glad if someone could put me in the right direction as to how to achieve text effects like this: I've researched and still can't make out how to ...
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1answer
16 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 ...
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0answers
14 views

Automatically create 2d map from a video

Is there a software which can generate a 2d map which shows the position of the walls based on a video where I film the interior of a room?
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1answer
24 views

How do you make video look natural?

I want the videos that I will shoot to feel natural and I don't know what I have to do. The research I did in the internet says aperture of our eyes are around F/8 in bright conditions and around F/2 ...
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1answer
16 views

How to find same video but with other format and resolution from very big video collection

I have enormous video collection dating back from 2003. until today, almost 9 TB on material from varios sources with various formats and resolution. There are also some shortened version of same ...
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2answers
64 views

How to add Photos in background to a Video using FFMPEG

I saw one app and I'm willing to add photos similar to how that app does. Following is the screenshot of the video that I got from that app: I'm not sure what is the black part in there on the right-...
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1answer
13 views

Marker animation trigger from parent composition

Is it possible to trigger animation from parent comp layer? I have been trying this expression with my basic coding skills but couldn't make it work. n = comp("myparentComp").layer("myLayer").marker....
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1answer
22 views

How to slow down ProRes file from 25fps to 16fps without re-encoding?

This works to change the speed, but it also changes the codec to MPEG4 Video (H264). ffmpeg -y -r 16 -i at25fps.mov -filter:v "setpts=25/16*PTS" at16fps.mov I need the codec to stay untouched: ...
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1answer
16 views

My 50 FPS footage automatically converted to 24FPS by DaVinci Resolve

I have imported my Camera Footage of the Sony Alpha 68 and it is a 50 FPS footage as it shows in the metadata in the below image but when importing into timeline it gets converted to 50 FPS. Earlier ...
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0answers
12 views

Boost audio of .mkv file on mac?

Referring to the post below: https://apple.stackexchange.com/questions/114309/increase-audio-volume-of-mov-video-in-os-x?newreg=2456df4e2a1e423db0b7ac8e3d8bbbf1 I would like to know an easy way to ...
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1answer
25 views

Is there an app that can automatically separate scenes/clips from a video file and export them?

I am looking to parse a collection downloaded YouTube videos that are actually compilations containing clips from several different videos all over the web. I would like for this program to ...
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1answer
10 views

Retrieve and decode V-Chip data from an aired digital TV stream

I'm trying to retrieve and decode V-chip data from my TV streams (NTSC/ATSC digital streams). Apparently these data are embedded somewhere in the stream itself, but I have no clue how they are ...
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1answer
54 views

Does anyone know how to make the effect shown in the video in Davinci Resolve 15?

spinning globe with orbiting texts Does someone know how to make the orbiting text shown at the bottom right corner of the linked clip or where to such a tutorial online by using Davinci Resolve?
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0answers
27 views

ffmpeg concat removing sound of videos

I've used this code for merging three videos together with ffmpeg : ffmpeg -y -f concat -safe 0 -i list.txt -c copy done.mp4 the list.txt contains : file 'first.mp4' duration 2.5 file 'second.mp4' ...
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1answer
27 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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1answer
23 views

Adding a sine generated audio track to a video stream with ffmepg

I'm generating an MPEG transport stream from a PNG file with ffmpeg succesfully with the following command: ffmpeg -re -loop 1 -i smpte-color-bars-1080p.png -r 25 -vcodec libx264 -tune zerolatency -f ...
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2answers
20 views

Where do I find the standard licensing agreement on a video that's on YouTube?

Where do I find the licensing agreement on a video so I know if I can use it or not?
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1answer
20 views

How do I know if a YouTube video is available to license?

I am looking at a Video from Germany that was posted to YouTube 2014 and I want to know if I can license it? How would I find this out?
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1answer
36 views

Add image as intro and outro to video

Here is basically what I'm trying to do. I have two files : 1. image.png 2. video.mp4 I'm trying to create a new video file (mp4) with : IMAGE.PNG for the first 5 seconds VIDEO.MP4 for the ...
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2answers
58 views

Motion RAW Videos possible?

Sorry for the rushed question I don't have time. So my good old DSC W610 could shoot MJPEG but I always wanted an RAW video so I could make wallpapers from the scenery videos I Shoot. Is this ...
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2answers
70 views

How to force to automatically continue VIDEO-Recording after being stopped (after 12 mins or so)

Most photo-cameras (canon or whatever) has the limit, as most of them stop the video-recording after 12 minutes. AFAIK, it is related to SD-CARD limits (as FAT format can hold max 4gb file). However, ...
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1answer
69 views

4:3 - 16:9 Aspect Ratio Conversion with Pillarbox and Textbox

I'm trying to use FFMpeg to adapt 4:3 (SD) to 16:9 (HD) and reverse function. When SD is converted to HD, I need to add pillarboxes around the content. When HD is converted to SD, I need to add ...
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1answer
29 views

Can Davinci Resolve convert a movie into (png) pictures…?

I'm a new user of Davinci Resolve. I would like to know if I can use it for converting a video into its pictures ? Do you have a tutorial that explains to me how is the workflow ? maybe on Youtube ? ...
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1answer
107 views

ffmpeg add audio to video not working in below command

in below command final video is created but sound of second video is muted after some time. here duration of audio and video is same. ffmpeg -y -i intro.mp4 -i videoaction.mp4 -i outro.mp4 -i audio1....
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2answers
36 views

How to make a dolly effect?

I was watching vertigo last night which is directed by alfared hitchcock and I saw some scenes in which he used 'dolly effect' I was wondering how do you make that effect?
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2answers
27 views

Best way to add subtitles to videos

I currently have ~200 short 30 second teaser youtube video that link to articles. I am looking for the best way to add captions to these videos. These will eventually go out on social media. Because ...
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1answer
21 views

Is it possible for the viewers to get rid of the 60FPS fast forward effect?

Since I and Everyone else watched too many 24/30FPS throught our lives, whenever We see 60FPS or faster motion picture we feel like its fast forwarded thus makes it terribly unnatural. I want to ...
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1answer
21 views

How to split video output signal from 1 PC to 40 projectors?

I am thinking of implementing this by daisy-chaining multiple splitters but I am not sure if it will work. Does anyone know of a cost-effective solution to this? Thanks.
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0answers
24 views

How can I find duplicate videos by content

I have a lot of video files but also a lot of duplicate with different encoding differences (eg 720p and 4K versions). I wasn't able to find an open source solutions. I tried a Windows paid program ...
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3answers
48 views

How does shutter speed affect the video?

As shutter speed affects the coming light on sensor.But has it any affect on movement of subjects in video?
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1answer
24 views

Do blanking intervals appear on both sides of a frame or just the top and left?

I've been learning about the blanking intervals in video signals and often see diagrams like this: (Ref) But, I often also see the blanking regions describes as being on both sides of the image: (...
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1answer
89 views

How to stack three videos side by side with ffmpeg

I'd like to combine three videos into one vertically stacked video. The three videos have different width and height. I can combine them horizontally successfully with this command: ffmpeg -i s1.mp4 ...
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2answers
29 views

Looking for video software for analysing videos

I have a security camera on my car which is triggered by motion detection. Each time it happens it records about 10 seconds in dual cameras which end up with two files A_[timestamp]for front, B_[...
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1answer
34 views

Concat two MP4 files (side by side) with FFmpeg

I'm trying to concat two videos, side by side, using ffmpeg. One of them is 1280x720, and the other 1920x1080. One will be left, one will be right side. The higher resolution will be resized to the ...
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1answer
262 views

ffmpeg combine three videos side by side

I have three videos s1.mp4,s2.mp4 s3.mp4 and I need to combine three videos side by side I know use hstack but my three videos has different size? I've found following commands.It works,but only ...
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0answers
5 views

Simple Video Content Recognition Software

I am looking for a tool that recognizes live action and graphics content in a video, and output the duration used of each style. I am searching for something more automated than scene detection ...
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1answer
131 views

Long video ffmpeg transcode makes audio go out of sync

I have recorded a 50 minute video, edited it in Hitfilm Express to censor/blur people, and exported it in Hitfilm's high resolution format, generating an 80GB file. When I try to transcode this file ...
2
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1answer
63 views

FFmpeg concat problem

I just want to add black video at the beginning of the video I have found following commands. ffmpeg -i s1.mp4 -f lavfi -i color=c=black -t 10 -filter_complex "[1:v][0:v]scale2ref=1*iw/1/sar:ih/1[...