Questions tagged [video-editing]
Questions about video editing software and their related topics, not to be confused with [video-conversion].
495
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How Can I Automatically Split a Large Video Into Multiple Videos Between 1 or 2 Second Black Screens?
I have a large video where the scenes are split between black screens that are a second or 2 and I'd like them to be split into multiple mp4 files with the audio included automatically. Can you ...
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1
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29
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ffmpeg hangs when trying to convert analog static from fpv drone
I am trying to convert a .MOV file to an .mp4 file using moviepy, which as I understand is a wrapper for ffmpeg. I have had prior success, but was disappointed when ffmpeg ground to a halt at 89%. I ...
- 1
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33
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Change 50fps video into 25fps and keep the duration without reencoding
I have a 50fps video, where every second frame is a duplicate of the previous frame. I want to upload this video to youtube and I want youtube to think it's a 25fps video. Is this possible?
For ...
- 75
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1
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100
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FFmpeg - Cut video from the beginning until a certain pixel is colored at a specific color
I am new to working with FFmpeg and would like to automate video trimming but can't find a way to do it.
So, what I would like to achieve is this: I want to delete the beginning of a video file until ...
- 11
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10
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With the help of ffmpeg Can we do operation in the video editing app such as mask, motion, text motion mosaic, stabilize, remove background
I am a beginner in android so I want to develop small video editing app. So With the help of ffmpeg Can we do operation in the video editing app such as mask, motion, text motion mosaic, stabilize, ...
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1
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66
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Replace video track in MKV with track from .h264
I want to replace only the video part in my existing mkv file with the video.h264 file I created externally, I don't want to interfere with other parts or features in my mkv file such as audio or ...
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49
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Is there some way to losslessly "cut off" from the beginning and/or end in an .mp4 file?
First of all, yes, I know that .mp4 videos are lossy.
Many of them contain annoying unwanted stuff in the beginning or end, which I neither want to see nor want to take up storage space on my disks.
...
- 21
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31
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How do I start 15 seconds before each video in this filter_complex expression in ffmpeg?
I have 4 videos basically of 4 people playing together in a coop game. It starts at the same cut scene and then shows each player s screen.
I am trying to merge them together in a 4 x 4 grid with all ...
- 127
1
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1
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129
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Free-hand crop video in kdenlive
I would like to mark an area inside a clip, and delete what is not inside this area (something like selection tool in gimp).
The idea is to create an effect that somebody who runs appears exactly ...
- 121
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368
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Extract only video from file using FFMPEG
I have an mp4 file named "input.mp4" and I need to extract only the video stream into another mp4 file, without re-encoding. How can I do that? I found a way to extract the audio stream but ...
- 683
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203
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ffmpeg - How to interpolate frames at a single instance in a video?
I have a 5 second video with 60 fps. It is a single take shot except a minor cut at 00:00:02.208. I have found some resources that use interpolation in the entire video in order to increase frame rate ...
- 1
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290
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FFMPEG Concat Demuxer causes freeze between clips
I wrote a program that takes multiple clips from a video, then concats them into a single, shorter video, using FFMPEG. The issue that I have come across is that, in the output video, the clips freeze ...
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29
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How to automate splitting clips into segments, shuffling them and joining them again?
Right now I am doing these 5 steps manually:
Split a clip into 15 second segments with: ffmpeg -i "funnyvideo.mkv" -ss 0 -f segment -segment_time 15 -vcodec copy -reset_timestamps 1 -map 0:...
- 1
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1
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721
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How to record audio in Clipchamp?
So I'm trying to use this Microsoft's Clipchamp app to edit my video to which I want to add some my comments - record audio
But I can't find the way to do, this app only suggests camera+audio ...
- 151
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1
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204
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Trim .tp files without re-encoding
I'm currently using ffmpeg -ss xx:xx -to yy:yy -i input -c copy output to cut some files and it works fine with .ts and .mp4, but it can't handle .tp files. Here's what I get:
[mpegts @ 0x198acd0] PES ...
- 11
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298
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Overlay video on top of Image - Do not resize Video, simply create a "larger" canvas around video
Is the following possible with ffmpeg?
Basically I want to leave the original video size alone, just make the video centered over a larger image, so it creates a border effect, as per following:
:
- 421
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1
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590
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Removing the dash from both ends of a pattern using Regex
I want to remove the dash from both ends of a pattern -L-07-TV-04-Clip-01- using Regex.
-L-07-TV-04-Clip-01-
-I-have-to-realize-
-me-having-this-addiction-
-END-OF-CLIP-
-L-07-TV-04-Clip-02-
...
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1
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44
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How do video editing programs process large files?
Imagine a video is 4 seconds long at 4k 25fps. An editing tool would process the compressed video file to raw pixels and frames i assume, because editing the compressed one is very complicated. But in ...
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285
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How can a color blindness simulation in FFmpeg be done?
How a can color blindness simulation in FFmpeg be done?
I am asking this question because I want to make a YouTube video with simulated color blindness.
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73
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How to automate video editing and output new videos with scene combinations / permutations?
Is there a way to automate video editing, where it takes an input video and list of timestamps, and then outputs videos with different scene combinations / permutations?
See illustration below, I have ...
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2
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36
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Questions about a multi setup RAID and NAS together?
So here's the idea:
I want to run a 8TB M.2 PCIE 4.0 3 disk setup on top then down bottom I am considering my options.
I am thinking about doing a NAS Setup with a RAID 1 Array together.
The total ...
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1
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173
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how to combine two ffmpeg commands into one?
I am currently using this command to cut the first 10 seconds of all videos in a folder so the output is the whole video minus first 10 seconds.
FORFILES /M "*.mkv" /c "cmd /c ffmpeg -...
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1
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Cut off from beginning to key frame using FFMPEG
How to cut away a piece at the start of video from beginning to the next key frame?
I know the -ss option
ffmpeg -y -noaccurate_seek -ss 00:00:30 -i "%%~ni.mp4" -avoid_negative_ts make_zero -...
- 822
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458
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What do we call this line in video editing?
This might be an obvious question but I can't seem to find the answer to it.
What do we call the line highlighted in yellow?
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241
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Ffmpeg chunks to final video or final video with HLS
i want to optimize the speed of the ffmpeg video creation.
At the moment:
Creating small videos and concatenating them with xfade and using HLS after all video chunks are made. So it does take time to ...
- 53
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1
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511
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splitting mp4 with ffmpeg does not remove chapters
I created a bunch of mp4 videos from DVD images using handbrake. I need to split them, and this appears to work with the solution from this question FFMPEG Splitting MP4 with Same Quality. For ...
- 121
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1k
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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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733
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FFmpeg. Combine drawtext, fade and afade filters with filter_complex
I have these two codes that work fine, separately
ffmpeg -i in.mp4 -filter_complex "drawtext=fontfile=Lato-Light.ttf:text='TEXT':fontsize=60:fontcolor=white:alpha='if(lt(t,2),0,if(lt(t,4),(t-2)/...
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157
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How to cut and download a part of lengthy youtube video without downloading the whole video to my mac?
I tried many online tool but some of them not working and Some giving error, maybe due to original video length
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109
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Combining video with several audio files
I need to combine several audio files with a video file. Each audio file should have a specific volume, time and delay. Combined as a whole it works fine. The problem arises with the volume of the ...
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183
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How to display instant preview without exporting FFmpeg video?
I am using FFMPEG to generate video from images but the problem is that I can only show the preview of the video after executing FFMPEG command and it’s takes time to generate output.
On terminal I ...
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448
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How to edit/properly fix a DVD VOB/BUP/IFO file?
Intro
I have a DVDISO file, and opening it doesn't work because my built-in disk mounter can't read it.
So, I open it up with VLC and all looks fine. When booting it up it's supposed to take you to a ...
- 113
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87
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Fade-in turns whole video stream to black
I've adapted the following crossfade from Gyan to create a video from an image and an audio file, and then crossfade it with an outro. This works fine, but I also want to have the first video stream ...
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164
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How to specify size of color filter dynamically
I've been using the following crossfade from Gyan as part of my workflow for a while, as I've found it to look superior to other crossfade solutions and easy to adapt for different inputs. However, I'...
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Davinci Resolve does not import MP3 files in media pool
I am trying to add MP3 files to the media pool of Davinci Resolve. I do so by right clicking and choosing "Import Media ..." (Shortcut Ctrl+I). The files are visible and selectable in the ...
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How to step forward/backward a few seconds in DaVinci resolve timeline with a hotkey?
It is possible to step one frame or second in DaVinci Resolve by pressing left/right or shift+left/right. But is it possible to step, say, 5 seconds or 30 seconds?
Maybe you know if it is possible to ...
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147
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merging 2 editing videos without saving them using ffmpeg
I want to combine 2 videos assume even they are edited among themselves
How normally we do
video 1:
ffmpeg -i 1.mp4 -filter:a "volume=0.0" test1.mp4
video 2:
ffmpeg -i 2.mp4 -filter:a "...
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1
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455
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FFMPEG: Images are being loaded wrong at wrong FPS
On my video I am adding multiple overlays, 1 that will always be shown (Overlay/overlay.png) and I got a progress bar in PNGs named 0 to the last frame num.
I tried ffmpeg -i 6875126077795372290.mp4 -...
- 21
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266
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Use time or frame number for still image in FFmpeg filter
I'm trying to do a transition from image a.jpg to image b.jpg using FFmpeg filter. But it seems that FFmpeg won't recognize any time related options for still images, and the frame number I get is ...
- 101
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378
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Image overlay on video between two times using mobile-ffmpeg android
I am trying to add image overlay on video using "mobile-ffmpeg-full-gpl:4.4" library but faced following error
Error when evaluating the expression 'between(t' for enable
I have a class ...
2
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1
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841
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How to add still image before and after a video, for a specific duration
What i have is a list of 80 video files (mp4), 2-5s each, of a person pronouncing a word. For each file, i need to add some amount of silent still face at the beginning and/or and the video.
The way i'...
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2
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1k
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Replace part of a video (without replacing the audio) in ffmpeg
I have a video file that is divided into three different sections. I want to replace the middle part of this video with another clip. However, I still want to keep the audio of the original video. Can ...
- 255
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197
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Why can't I cut a video clip using OpenShot?
I'm trying to adjust the start time and end time of a clip in OpenShot. According to the manual:
OpenShot has many easy ways to adjust the start and end positions of a
clip (otherwise known as ...
- 929
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585
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ffmpeg -t frame duration
I want to cut a video using ffmpeg.
I want to use the -t option for that. And did already some testing to get a satisfying comand together.
All I wondering is how carefull I have to be with -t or -to ...
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863
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FFmpeg lenscorrection filter creates bad moire patterns
I'm trying to create a barrel distortion effect using FFmpeg. The lenscorrection filter can do this, but depending on the source material the results can be pretty bad, with moire patterns / bad ...
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89
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Trim video into multiple sections ffmpeg
I need to trim a video into multiple sections of unequal duration and output them as separate files.
For example a .mp4 100 seconds long and I need to extract and keep
output0.mp4 from 5 - 10sec
...
- 121
2
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2
answers
903
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ffmpeg - video and audio out of sync
This seems to be a common problem, but the answers I found don't seem to apply to my situation.
I'm merging 6 videos (one of them is a short background that loops) into 1 output video, and the audio ...
- 143
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246
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ffmpeg - multiple videos in panes, background image - unacceptable rendering speed
In this ongoing saga of me putting together a video, I have one more step I'm trying to add.
My requirements look like this:
In these days of COVID, our choir director is recording a video which is ...
- 143
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115
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ffmpeg - add multiple videos in panes, one master track, give offset start times how?
In these days of COVID, our choir director is recording a video which is the accompaniment, and then each choir member (at home) is listening to the accompaniment in headphones, singing along, and ...
- 143
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1
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535
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ffmpeg - add multiple videos in panes, give offset start times how?
In these days of COVID, our choir director is recording a video which is the accompaniment, and then each choir member (at home) is listening to the accompaniment in headphones, singing along, and ...
- 143