Questions tagged [video]

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

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36 views

Compensate or fix VHS artefacts in areas of high contrast

Take a look at the man in a tuxedo. To the right of the black leg, there is a bright vertical line. Is there some kind of filter in something like VirtualDub or Vapoursynth which could improve this ...
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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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24 views

Is there any free software for converting SVG/CSS animations to video, for Windows, YouTube compatible, high quality, automatically runnable?

I'm coding animations in SVG animated with CSS, and want to show them on YouTube. So I need to go from the original animation which I display in a web browser, to a video file. I've looked into and ...
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17 views

how to animate muscle movement in the human body

I've been trying to achieve the following effect in the video linked below, I tried using a png and tracking motion along side the puppet tool but it ends up looking weird. I've checked for tutorials ...
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1answer
13 views

Natron: how to resume a render that crashed

I'd like a way to restart a render when a render crashes in Natron, given that the output are written in separated files (using output out_%05d.png). I don't want to change the first frame in my ...
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1answer
265 views

Why does moving objects in some videos flicker or distort horizontally

I am not asking the common question of horizontal dark stripes on some of the videos. I know this is a known topic and lots of resources are already available on the internet on this. But I am talking ...
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1answer
305 views

"Cannot find a matching stream for unlabeled input pad 2 on filter Parsed_amerge_2" ffmpeg

The error I'm getting is in the title. I want to merge the two audio streams from a video into one (yes, I've checked if there is two and there is). This is the command I'm using: ffmpeg -i input.mp4 -...
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11 views

Trying to locate services that do video transformation

I'm looking for a service that allows me to do the following: programmatically concatenate several video files into one new video file overlay an audio file onto the video file overlay a watermark ...
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10 views

Illustrator “Release to Layers” but keep names? [duplicate]

When preparing the Illustrator files in order to work on it in After Effects, we need to put each layer separately But when you click on release to layer (sequence), the layer name changes to Layer 1, ...
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1answer
42 views

Generating thumbnail from only the first megabytes of a video file

I want to create one thumbnail consisting of the first frame of a video for arbitrary video files. I do it like this: ffmpeg -i video.mkv -vf scale=w=300:h=300:force_original_aspect_ratio=decrease -...
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1answer
52 views

Why "mat2" show over 90 lines of metadata for video file

I bought a video and see a lot of meta data. What do these metadata mean (overview summary)? Is there something like watermarking to track who the owner is? mat2 -s video.mp4 [+] Metadata for video....
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14 views

What would happen if I didn't select this option?

In this video editing tutorial, at 01:57 author said after cropping desired region, I need to select "Set width according to parent's aspect ratio" option. What would happen if I click apply ...
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1answer
207 views

ffmpeg: Placing an overlay over multiple images

I am trying to overlay a png image onto a series of images (a few hundred images), I will later take this series of images with the overlay and construct a movie out of the series of images. I don't ...
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1answer
27 views

How to make python ignore square bracket? [closed]

I have a code it work with fine with with file name does not contain square bracket [] an example: 10245,13445.avi def insert_types(out, dir): for root, dirs, files in walk(dir): for f in os....
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38 views

Add external mic using Sony "A/V R" plug

I have a Sony HDR-CX100 video camera that I would like to connect an external mic to (3.5mm plug), but the camera has no dedicated mic input. However, it as an "A/V R" plug: Before you say &...
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1answer
63 views

Loop images until the audio ends

I have an audio file 2 hours long and 30 still images related to the audio. I would like to display each image consecutively for about 45 seconds while the audio is playing in a repeating fashion. ...
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46 views

How to remove unwanted pauses from video footage in Premiere or After Effects

Here's my problem: I have a screen recording of my screen, demonstrating a certain process Sometimes I pause and think, causing the footage to become still, as I do not press any keys nor move my ...
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2answers
19 views

Add audio bulk in the video file

Good Day. I have 1000 Video files ( without Audio ) I want to add audio in the video. same audio for all the videos. Any software suggestions?
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2answers
299 views

Why aren't chapters being added to my m2ts using tsmuxer?

Question - Why aren't chapters being added to my m2ts using tsmuxer? Background I have a mkv file with 61 chapters. I confirmed the presence of those chapters by using mkvtoolnix. I want to convert ...
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1answer
27 views

Budget Mandalorian backgrounds

If I have a projector, an iphone with (basic) motion tracking, and a fast-ish computer running Unreal or something similar, has anyone figured out a way to make Mandalorian-style responsive backdrops ...
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2answers
2k views

Premiere Pro system compatibility report unsupported video drivers

Just had to wipe my windows installation as it got beyond repair. Working on a Lenovo P50, 32GB memory, Core i7 HD, Intel HD Graphics 530, Nvidia Quadro M1000M. I've got a clean install of windows, ...
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2answers
270 views

Is 8 Bit 4:2:0 chroma subsampling "good enough" for chroma key?

My school bought a Panasonic 4K camcorder (which I don't remember exactly which model) pointed at a green screen and this got me thinking. If it's a HC-X1000 with it's tiny sized sensor and 8 Bit 4:2:...
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1answer
38 views

How to remove audio translations from the movie?

I want to cut an existing movie and want to remove all the language track from it. The thing is when I start to edit the movie, Premiere Pro just picks up some language, which is not suitable for me. ...
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1answer
907 views

Premier Pro Audio Quality Poor and Muffled After Export

I’m currently exporting a video on Premier Pro using the default YouTube 1080 HD settings. Usually, my videos export with no problem, but with this video, my exported audio is extremely muffled, even ...
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1answer
52 views

How do I improve sharpness of foliage and distant objects during video recording?

Lately I have tried recording some video using my old Canon. While I achieve decent results during macro shots and while filming human beings, I have noticed that foliage and distant objects in wide ...
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1answer
156 views

ffmpeg mov_text subtitle too small when converting mkv to mp4

I want to remux a mkv file into mp4. I used the following command. ffmpeg -i "input.mkv" -c:v copy -c:a copy -map 0:0 -map 0:1 -map 0:2 -map 0:3 -c:s mov_text "output.mp4" Problem:...
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19 views

How to create presentation videos like this

Does anyone know how to create video clips like these? Is there any service or software being used ? https://twitter.com/BrosAbeg/status/1296736489406169089 https://twitter.com/tixdotafrica/status/...
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3answers
59 views

Can't see differences between videos?

I back up my data to pairs of external hard drives, and recently (in the process of transferring the contents to larger external hard drives) found that some of the data between them has diverged. ...
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1answer
64 views

remove wire on video

Can't see any other posts on this site about this which seems unusual so here goes. I have a video in which a wire is used to pull an object from the scene. I did a test which worked well, but the ...
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1answer
50 views

Video MP4 file stops and starts

I'm new here, and a pretty new video editor, but I'm having a few problems. One of my clients sent me some plain mp4 clips of some action video. Both he and I when we watch them remark one thing. The ...
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1answer
329 views

Convert interlaced(?) video to progressive

I have a video with the following details: Format : MPEG-TS File size : 6.49 GiB Duration : 1 h 35 min Overall bit rate mode : Variable ...
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1answer
20 views

Video of typing text on an angle

I saw this video (https://pin.it/119U75R) and I want to do something like it but I don't know what it's call to search about it, so can you help me how I can search about it? I would like to make text ...
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1answer
225 views

Why doesn't FFMPEG output frames as jpg? How can I fix my code?

I'm trying to decode a video into its frames with the following code: ` Decode the video into 30 fps frames with ffmpeg check_call(['ffmpeg', '-i', 'file:'+clip_name+'.mp4', '-vf', 'fps=30', 'frame_%...
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13 views

Seeking for advice with dealing with out of sync audio

I have a bunch of videos from games caputured with NVidia's Share. They are trimmed using VLC. I have one video that is 1 minute and 38 seconds long (a lot longer then the others). If I play it in VLC ...
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1answer
52 views

Can i do decimal custom speeds in final cut pro?

I want to speed a video up by a 102.4% in final cut pro, is this possible?
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1answer
13 views

Problems with lower thirds

I have a .mov file that has a black background but it’s not transparent. How do I change this file to make the black background transparent. Do I change the file in my editing software? If so how? I ...
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47 views

ffmpeg rtmp broadcast on youtube speed below 1x

i made an python and opencv program that produce frame per second around 8-15fps with MJPEG output format where MJPEG address served on localhost webserver (0.0.0.0:5000) and, i do attempt to ...
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2answers
70 views

How do I find out if a video is actual or if it was modified with a Software?

This video in question is Chameleon Changing Color How do I find out if that color change in the Chameleon is real and not a modification that was done with software? Specifically, I am looking for ...
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86 views

Build FFmpeg with ".EXE" files of external libraries?

this is my first question on StackExchange! I recently got into building FFmpeg on Windows and build successfully the vanilla and the external library versions of this program! I noticed that it only ...
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1answer
29 views

seamless DNXHR player

I am looking for a player for DNxHR that will playback files seamlessly, as there is no brief pause between files playing. two files played back to back should play as though they are effectively one ...
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13 views

re; using 2 i-phones simultaneously in adjoining rooms for video input to macbook pro

I would like to 'overlay' two individual video feeds from two i-phones (with individual audio feeds from each person via XLR cable) to an existing video so as to stream both the prerecorded video as ...
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1answer
63 views

After Effects is not seeing CUDA in my GTX 1060 GPU

I've got this weird problem. I have the latest After Effects 2020 and this is how my "GPU Information" window looks like. As far as I remember, this is not how it should normally be. It must ...
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1answer
25 views

Selecting specific part of a video

I have a video which I need to analyse. The analysis software recognizes objects outside the area of interest and I would like to limit it to the specific arena. In order to do so I tried cropping but ...
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1answer
129 views

Concat 2 video and add watermark first video ffmpeg

I have a Video #1, it has audio. Also I have a Video #2, with audio too. I would like to concat the #1 and #2 (or play #1 first, and then #2) and then add a watermark in #1 for the rest of the video, ...
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1answer
66 views

Standard way for handling different resolutions when concatenating videos

I am building a small tool to take the short videos I record from different devices (e.g. iPhone, camcorder, etc), and concatenate them together chronologically. Everything is working up to the point ...
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2answers
52 views

FINAL CUT audio syncing

I make videos about drums and music. I record audio separately to video. when I align the audio with the video after the fact, I always feel final cut never gives me enough resolution in terms of ...
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23 views

How many I-frames are in a single shot?

I have some fundamental questions on shots and I-frames. When we apply shot detection on a video, how many I-frames will exist in a shot? How many frames exist between two I-frames? And does the shot ...
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71 views

What is the recommended settings for video editing using ffmpeg?

I am quite new for using FFmpeg, and I am using FFmpeg in screen recording. I checked the online documentation in this link ffmpeg documentation "Capturing your Desktop / Screen Recording", ...
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1answer
2k views

Video artifact removal and restoration - How can it be done? (Really?)

I have been researching this for the past couple of days, and all I could find on the subject were a bunch of research papers, a demonstration video of a model that isn't publicly available, and a ...
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1answer
207 views

Create 4x2 grid mosaic

trying to create a 4x2 grid from 8 videos using the terminal on a mac. The code I am using is not working: ffmpeg -i input0.mov -i input1.mov -i input2.mov -i input3.mov -i input4.mov -i input5.mov -i ...

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