Questions tagged [video]
Video is the technology of electronically manipulating still images that represent motion.
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Overlay text annotation on an independent video track
I have 25 short videos of family (~3 min each) that I would like to label with names of the various people. There can of course be many people on the screen at once, so I need to be able to add ...
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How can I rotate and resize a video with ffmpeg?
I use a programm that needs .mp4 video files in the resolution 1080x608 px (width x height).
My original videos have a smaller resolution - mostly 640x480 px.
I have to rotate my original videos 90 ...
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GoPro 11 video colour fades after export
I recently bought a GoPro Hero 11 Black Camera. It records 5.3K quality videos, which is crips and rich in colour. But whenever I try to edit and export using any known video editor, it simply fades a ...
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Handbrake Output Visually Freezes on Interstitial
I downloaded an m3u8 stream using a Chrome plugin, and it created an mp4 file which I can play fully in VLC.
Next, I am attempting to use Handbrake to encode this file to be played on an old iPod Nano....
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How to Stabliize Video when foreground and background are similar?
I have a video of a lizard. The lizard matches its environment very well making it difficult for predators and algorithms to distinguish it from the background. I've tried using 3 different online ...
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With ffmpeg print onto clipped video hh:mm:ss time *from original* and hh:mm:ss total duration from original
I am using arch linux and bash and ffmpeg, all are up to date and the latest versions.
I am clipping a video that is 30 seconds long and wish to clip from 5 secs to 10 seconds to a new file, from the ...
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Can somebody explain to me why bokeh is causing these weird trails on out of focus subjects? [closed]
I went out to specifically do a few test recordings with bokeh/lights in the background. I noticed these weird "pre" and "post" trails from what appears to be certain out of focus ...
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Is Interlaced Scanning compatibile with Dolby Vision
I've tried setting the resolution to 1080i while Dolby Vision is active and it would revert to 2160p.
So is Interlaced Scanning compatible with Dolby Vision?
I didn't manage to find a definitive ...
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learn video editing, if you can help, great pleasure for me
so guys i want to learn editing, so can you give me some sources and articles and stuff, to start learning this skill and master it, and please recommend me some softwares that i can practice on as a ...
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Lightstreaks on Video Footage
I'm trying to make this effect for a car video, you can imagine the camera movement for this kind of stuff.
I was going to try this technique which is simply a 3D shape layer in After Effects with a ...
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Why is my rendered video output larger than imported files?
I have imported multiple video files (roughly 3h30min / roughly 11GB). I have stripped out the Audio and reduced my total cuts to roughly 2m12sec. I have tried multiple render video output formats, ...
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FFmpeg recover_mp4 help
ive been using ffmpeg and recover mp4 to try and restore a dashcam video from a car accident. im a beginner using this method/ software and im running into this issue. not sure how to "increase ...
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extracting/exporting images from a video at every scenechange
How can I extract images from a video at each scene change (i.e. the 1st image from each new scene in a video) ?
FFmpeg is said to be able to detect scene changes but I don't know how to adapt the ...
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AI / Automatic assisted mask with face/body detection for clone effect video?
I'd like to very closely mask my head for this 'clone effect' multilayered camera shot.
Is there an efficient tool I can use which will detect a human figure/face and mask based on that?
Should I just ...
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Displaying an image next to a text using ffmpeg
I would like to overlay a text and an image in a video. I know how to overlay text and an image.
The problem is the text is not fixed, e.g “Sad, “Happy,” “Excited,” etc. I need to show an image right ...
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How to convert SD-BD Video to DVD Video?
this is my first post here:
I have several homemade, simple Bluray PAL SD Video iso files without menus. They are converted from PAL DV to mpeg2video and PCM audio to .mts and with tsMuxer to Bluray....
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What does the tag "-tag:v hvc1" means?
I am using FFMpeg to compress a video to X265/HEVC. When I am doing it normally the converted video doesn't working on iPhone or iPad. But while I am using the tag - "-tag:v hvc1" in the ...
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Why has transport stream (TS) a much bigger file size than mkv?
When I remux the transport stream (.ts file) of a satellite recording to mkv, file size shrinks considerably.
Why is that ?
What is inside the .ts container that gets "lost" during remuxing ?...
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Which software/s to create a video like this - 3d explainer video
I'm trying to create a 3d animated video link this
https://www.veed.io/view/b19fbccb-2f97-405e-bb64-3d8ffc5e9401?sharingWidget=true&panel=share
I've researched and found the following:
Blender: ...
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FFmpeg select filter does not return frames
I observed a strange behavior while using the select filter. In short, I'm using ffmpeg to detect frozen sections in a video, calculate the exact middle point of these sections, then using filters to ...
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Why X265 conversion is very slow on some devices
When I am converting my video using FFMpeg, I am using x265 to do the compression. But the issue is this conversion is much much slower. But while I am using my iPad 6th Generation, this works much ...
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MOV file not playing in iMovie and QuickTime
I did convert two MTS files to MOV. But one of the file is playing and working fine in iMovie app and QuickTime. But the other is not working. I did convert the first file by doing copy the stream and ...
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Suitable codec and settings to encode videos that can be scrubbed back and forth for making transcripts
For scientific purpose, I'm encoding videos that are going to be transcripted. Since in the process of transcription the person who does the transcription needs constantly to jump back and forth in ...
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How to cut video, add audio and burn subtitle while cropping video all in one command - ffmpeg
Currently I have the following command,
which cuts the video, adds audio and burns subtitle into the video.
-ss 00:00:30 -t -i video.mp4 -i audio.wav -vcodec copy -acodec copy -map 0:0 -map 1:0 -vf ...
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ffmpeg command to convert interlaced video to progressive without any loss of quality
Can anyone provide me with the ffmpeg code to convert deinterlaced 80's video to progressive video without any loss of quality - ideally where I could deinterlace only the interlaced fields(I use ...
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Gray screen issue after recovered video with ffmpeg
After recovered ".mp4" videos from mobile phone, some videos were corrupt. I used the FFMPEG method to fix the videos. Some CMD commands below;
First Code: recover_mp4.exe good.mp4 --analyze
...
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How to adjust video histogram using ffmpeg?
I have a dark video and'd like to adjust its histogram. In a graphical editor I've found the values of the color levels that enhance video contrast.
How to set this level values in ffmpeg?
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FFMPEG hardware accelerated 10 bit downsampling to H264
I have a home setup where I use a Kubuntu 22 box as my home theater PC (HTPC) to play videos/movies/music in my living room. I also set up a raspberry Pi in the kitchen that receives a video stream (...
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ffmpeg: Adding longer audio to shorter video, with video synced to end of audio
My audio file is longer than the video. I want to merge the two, but I want both audio and video to end at the same time, leaving black frames at the beginning of the video as the audio plays. How can ...
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How to prevent iMovie from changing aspect ratio on a video short in portrait mode?
I shot a video in portrait mode on iphone, and its a mov file with a vertical aspect ratio (ie, when i open it in quicktime, it has no black areas on its sides).
I open that video in imovie version 10....
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Where to find this template for Premiere Pro or After Effects?
Hello,
I was wondering where can I find this kind of template online. I tried various websites but there is just dust without these geometrical shapes.
The closest I could find is on Envato Elements ...
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FFMPEG Seeking with concat demuxer out of sync
I have a very simple use case that's driving me bananas.
My problem and question:
I'm using ffmpeg version 5.1.2 on a MacOS and i'm using ffmpeg seeking and concat demuxer to cut many 1 minute videos ...
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I have an audio file that's supposed to be video
So, I have an audio file that's a video but unencoded and as an audio file. I recorded it in Audacity, and I need to view it as a video. Any ideas?
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after merging videos together, unable to apply sticker at the same position on video as show in video preview .. how to do it using ffmpeg
The issue is that when we merge two or more videos then we have to make their scale same to achieve it,because of which the video resolution get change. After that when trying to apply overlay on that ...
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why iMovie drops FPS when adding audio during export
I have a video file with 60FPS. When I add it to iMovie v 10.3.5 I can click share > file and I have option for example 1080p60 but as soon as I add audio track, I can no longer export it as 60FPS. ...
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Looping segments breaks some players
I used ffmpeg to generate some segment files that I'm using as slate to play before a program starts. Using nodejs, I'm generating a an m3u8 file that loops perfectly in HLS.js, but on some players (...
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why does video need to be in video container files? and why do those file need to be in multimedia container files?
this might be a tough question but i feel the need to ask
why does video need to be in video container files? and why do those file need to be in multimedia container files?
when people where first ...
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what is the difference between a video compressor and an video encoder?
quick question,
i am curious to know what is the difference between a video compressor and a video encoder? are they the same thing? if not, what differences are there?
what are the fundamental ...
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How can I crop four videos into an unusual aspect ratio, and then stack them all on top of each other?
This seems like it would have a solution but I haven't had luck online. I am working on a video project that involves taking subtitles for four videos and then stacking them on top of each other. In ...
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Deciding on backdrop for making YouTube videos
I am new to recording videos. My room is cluttery and I want to hide all that clutter under a backdrop. I have watched some videos on YouTube but I am still not sure of what I need. From the videos I ...
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Vignetting with Sirui Anamorphic Lens on a Sony A7sii
I just purchased a Sirui 50mm 1.8 anamorphic lens, the Sony E-mount version. It fits on the camera fine as expected. However, there is a lot of vignetting. It happens on both 4k and HD recording modes....
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2 camera stitching with 3m distance
So, at this point, I'm not sure if this is a programming or a physics problem! I'm attempting to concatinate 2 video inputs together to cover a wider field of view. As far as I can tell, this is ...
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FFMPEG : Add video (partial video effect) under the image with ffmpeg
I have a video, video.mp4, and an image, artwork.png
I would like, to use FFmpeg:
To display the video.mp4 effect inside the image artwork.png
If possible, resize output.mp4 as per the demo ...
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ffmpeg error with device when transcoding from HEVC to H.264 on GPU using NVENC and CUDA
I wanted to transcode my videos that have hevc encoding into h.264 using ffmpeg with Nvidia CUDA acceleration.
Basically I've followed the guide provided in the official documentation and read through ...
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ffmpeg demuxer file size
I have used ffmpeg to concatenate two MKV containers with both files having AV1 codec like so:
ffmpeg -f concat -i input.txt -c copy "out.mkv"
Interestingly enough, the first file has ...
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MPEG-TS imprecise cut position on exact PTS, if cutting audio as well
Good morning, after 1 month of research and attempts, still wondering the correct solution.
I have frequently tv mpeg-ts (h264+aac) file to cut part from. I have a script to cut at exact times ...
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Interlaced or progressive for YouTube? [closed]
For shooting a YouTube videos as a talking head I'm choosing a camera.
The shooting will be indoors. Everything will be calm, no fast movements.
That is talking and occasionally to write something on ...
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How can people apparently manage to capture video in such poor quality in 2022? [closed]
This is something which has baffled me for many years already. I just watched this freshly uploaded video (out of many):
It seriously looks like somebody took a ...
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Davinci Resolve drastically changes clip
I'm having a vexing problem with importing a video clip into Davinci Resolve.
I recently downloaded a replay saved by Nvidea shadowplay from Google drive.
However, when I put the same clip into ...
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Video playback of unique parts of the same video across multiple screens
I need to produce a video that is played back across 5 screens. However it isn't the same image on each screen.
The idea is that the image switches from one screen to the next at certain specific ...
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