Questions tagged [video-editing]

Questions about video editing software and their related topics, not to be confused with [video-conversion].

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Is there an offline Web App for cutting video? [closed]

If I want to cut a video without native software, I go to google and search for "online video cutter". A bunch of great options come up. The downside is that the video file needs to be ...
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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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FFmpeg reads input from stdin causes warning: thread_queue_size

I have a standalone, customized filter written in python. The filter keep reading from stdin rawvideo and outputs each processed frame as raw bytes. I want to use it for a webcam so data comes from a ...
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2 votes
1 answer
189 views

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 -...
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How to convert ffmpeg adelay filter to ffmpeg-python

I am trying to learn to convert ffmpeg command line adelay filter to ffmpeg-python format. This is the ffmpeg command line argument ffmpeg -i first.mka -i second.mka -i third.mka -i fourth.mka -...
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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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41 views

Remove a part of MP4 from beginning to the next key frame without reencoding using ffmpeg

I know that it is possible to remove a part of MP4 from one time stamp to another. It is possible to cut even without re-encoding, but is it possible that ffmpeg finds next key frame from the ...
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remove shake in video by marking fixed reference points?

I have a video of a mechanical object which was made with a cell phone. Most of the parts of the device in the video are fixed, a few move (a little), and a tripod was not used so the camera itself ...
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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 ...
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173 views

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 ...
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348 views

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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ffmpeg. Combine two text with two alpha channels

Is it possible to merge these two instructions into one? I can't do it even though I read FFmpeg Filters Documentation: Introduction. ffmpeg -y -i in.mp4 -filter_complex "split[base][text]; [...
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164 views

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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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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52 views

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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Shotcut: create cross fade compilation of a few fragments within one video?

I have an hour long video. I want to create a compilation of a few short fragments from the video, cross fading one into the next. Not in linear order, i.e. a later fragment from the source video may ...
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88 views

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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148 views

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 ...
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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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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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3 votes
1 answer
986 views

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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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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180 views

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 -...
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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 ...
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223 views

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 ...
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1 vote
1 answer
62 views

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 votes
2 answers
527 views

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 ...
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107 views

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 ...
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1 vote
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165 views

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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450 views

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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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 ...
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2 votes
2 answers
525 views

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 ...
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1 answer
129 views

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 ...
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49 views

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 ...
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1 answer
181 views

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 ...
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0 votes
1 answer
224 views

Using mkvmerge to Merge Subtitle Tracks

I am looking for a way to merge two MKV files, each with an embedded subtitle track, into one where the subtitle tracks merge properly and in order. Right now I get two separate subtitle tracks, and ...
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1 vote
0 answers
15 views

How do I cut off overflowing audio using Melt?

I am trying to cut away the overflowing audio from a track generated in Melt. The audio is a lot longer than the video, and I don't necessarily know the length of either. V=Video, A=Audio VVVVVVV ...
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FFMPEG complex_filter_script adds long trailing blank video

I generated a complex_function_script to concatenate certain clips of an input video at different speeds. When I start from the beginning of the input video, the output is mostly correct, but has a ...
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70 views

Where are GoPro Highlight Tags stored?

I want to extract the (manually set) highlights from my GoPro-footage (HERO6-Black). I want to do this to mark the highlights on vacation and can use them to edit in Premiere Pro later. I found that ...
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7 votes
5 answers
5k views

What are the minimum requirements/specs for ffmpeg?

I am currently using a small software program I made in Python that utilises ffmpeg on my personal laptop that is overqualified to run it (core i7, 16gb ram etc), but I would like to move it over to ...
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246 views

how can i add an additonal output to ffmpeg to also pull out a frame for an image after segmenting

this is my command. i need to add something to the end to pull out a vframe every second or specified seconds and save to file. i've see how to do that on its own but not as a second output. i keep ...
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1 answer
51 views

CPU or GPU have more influence on video editing experience? [closed]

Which of the following system will brings better video editing experience? Moderate CPU with Good GPU (dedicated graphic cards) Good CPU with Moderate GPU (build-in graphics) In other words, CPU or ...
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83 views

Delete specific streams from a media file without creating a copy of the media file

The context I have a file with four streams: 1 video stream, 3 audio streams (see proof below). $ ffprobe -v quiet -of flat -show_entries stream=codec_type,index:stream_tags=title 'my_input_file.mkv' ...
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154 views

Can I upgrade RAM with different CAS frequency in my laptop?

I would like to add 16 GB more. Mostly for Video editing on my Asus Laptop. I am not sure if I can go with different CAS latency and frequency. I am noob. Please help me nerds. current: 8GB want to ...
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708 views

Is there way to increase speed of adding subtitles to a video?

Currently I do it this way: ffmpeg -i video.mp4 -vf ass=subs.ass output.mp4. But with some videos it takes too long. Is there way to increase speed of that: may be saving output file with lesser ...
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Adobe Premiere choppy playback but games run smoothly

I have the following specs: CPU: Ryzen 3 3200G Mobo: MSI A320M-A Pro GPU: ASRock RX 570 RAM: 16 Gb (2x8) SSD: 240 Gb HDD: 1T I can play DOTA 2, Tekken 7, GTA V, Valorant, and PUBG in all ultra ...
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420 views

batch remove first 30 seconds of video file with ffmpeg

There are a lot of examples of ffmpeg -ss [start] -i in.mp4 -t [duration] -c copy out.mp4 But if I want to use that command for a folder with multiple files (ffmpeg ... *.mp4 ...), how can I specify ...
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913 views

OpenShot: How to export a 1920x800 video in its original resolution?

I'm editing a video using OpenShot that has a resolution of 1920x800, but when I want to export the video (without having cropped it or anything), there is no option to save it in the same resolution. ...
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260 views

Premiere pro audio amplify not showing up in waveform?

I recorded my audio clips separate to my video and now all of then need a 12 dB boost. So what I did was rather than setting the gain to each clip as I drag I added the gain to the audio track, by ...
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