Questions tagged [command-line]

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Find duration only with ffmpeg in Windows

I want to find duration only with ffmpeg but ffmpeg -i FILENAME.EXT | find "Duration:" does not filter output to show just the line with "Duration:" How do I see just the ...
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1answer
10 views

filter_script usage with ffmpeg and replacing inputs with a file

When using ffmpeg -i input1 -i input2 ... -filter_script filter_complex.txt output.mkv I can't seem to get the stream from the filter_complex.txt file to be recognized by ffmpeg. If I add -map [v], ...
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23 views

ffmpeg skip first or more segments

Commonly I try options in case of skip the begin of video: ffmpeg -i -ss 2 input.mkv -ss 4 (then 3 or 5) -codec copy output.mkv I can split video by segments, then skip first segment and concatenate ...
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1answer
429 views

ffmpeg batch overlay Error: “Cannot find a matching stream for unlabeled input pad 1 on filter Parsed_overlay_0”

I am trying to create a batch file to run this script to add a watermark on each file in a folder ffmpeg -i input.mov -i watermark.png -filter_complex "overlay=10:10" output.mov The script above ...
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1answer
162 views

Can't apply “fade in” after “fade out” (FFMPEG command line)

I'm debugging the command ffmpeg -i ./input-file.mp3 -af "afade=t=out:st=**5**:d=2" ./output-file But if I try to run a new fadein, after the fadeout, it won't work. The sound doesn't come back. ...
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0answers
297 views

How to delete the very last frame of a video using ffmpeg / mencoder / transcode or any other?

I am trying to delete the very last frame of a video using ffmpeg / mencoder / transcode / or any other free linux application. Here is what I have so far, and it's only extracting it, it's not ...
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1answer
2k views

FFMPEG - How can I add black bars to top and bottom of my video?

I have about 100 videos. I would like to add a 30 pixel horizontal black bar to the top and bottom of each video without ruining the dimenions(so even if they go over the video). How can I achieve ...
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1answer
51 views

“shift +” while rendering in ffmpeg, how to undo?

I was rendering a video in ffmpeg and accidentally pressed "shift" and "+", and the below started happening. What is this doing and how do I stop it and is it creating something I need to delete or ...
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1answer
335 views

How to use MELT or FFMPEG for layering of a video (i.e. shifting an overlay of the same video by one frame to remove flicerking from LEDs)?

I am looking for a possibility to remove the flickering from LEDs on a video under Linux on the commandline. To do that one would have to Put the video on one track Put the same video on a second ...
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1answer
293 views

FFMPEG Command Works, then stops

When I use ffmpeg with this command: $ ffmpeg -i ~/Desktop/The_Karate_Kid_2010.mkv -c:v libx264 -c:a libfdk_aac -c:s mov_text ~/Desktop/The_Karate_Kid_2010.mp4 It works, until this error appears: ...
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1answer
628 views

What are the benefits of a CLI encoder (e.g. FFmpeg) over GUI Software? [closed]

I have seen here a lot of questions regarding FFmpeg, but I didn't know it was a command line application until yesterday. If we have GUI software like Final Cut Pro and Premiere Pro? Apart from the ...
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1answer
3k views

ffmpeg concat error

I am trying to concatenate two video files using ffmpeg, and am receiving and error. Two eliminate compatibility issues between the two videos, I am been concatenating the same video with itself, and ...
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1answer
2k views

ffmpeg multiple filters not working

I am trying to specify multiple filters for ffmpeg and I am getting an error output. I am trying to do an audio and video fade in and a resolution scale. my command is as follows... ffmpeg -i 00021....
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0answers
262 views

Is there command line software that syncs two audio tracks

I have a bunch of separately recorded audio and video tracks that I need to sync. By sync (synch?) I mean align the two tracks so that the audio matches as closely as possible. The two tracks are ...