Questions tagged [ffmpeg-filters]
Used for question that need help with FFmpeg's filters (i.e. a parameter specified by the -filter, -vf and -af options)
52
questions
0
votes
0
answers
19
views
Merging some FFMPEG code into AutoHotKey
I'm using some ready-made AutoHotKey that calls upon FFMPEG. I need to tweak what FFMPEG does, but I'm just so lost, so would really appreciate some help.
It currently does some simple FFMPEG scaling (...
0
votes
0
answers
55
views
transition circleclose is not working in FFMPEG
wanted to add circleclose transition to 2 videos while adding. transition effect is not coming. What is the issue in below FFMPEG command?
ffmpeg -i D:/development/copy/...
0
votes
0
answers
33
views
To make 'trim' and 'atrim' work synchronously
The following command trims a video using the trim video filter:
ffmpeg -y -i input.mp4 -vf "trim='00\:00\:05':'00\:00\:10',setpts=PTS-STARTPTS" output.mp4
But if the video also contains ...
0
votes
0
answers
30
views
Some mp4 files converted with ffmpeg are off by .01 frames/second, how can I fix this (without resampling)
I have several mp4 files with a frame rate of 119.88 frames/second, I need to convert these to 29.97 frames/second without resampling.
To do this, I ran
ffmpeg -itsscale 4 -i input.mp4 -c copy ...
0
votes
0
answers
43
views
Use cropdetect to check blanking errors
cropdetect outputs the crop area for every frame.
I would like cropdetect with either ffprobe or ffmpeg to output only the frame where the crop is less than actual size of the video.
So for 1920x1080 ...
0
votes
1
answer
98
views
Ffmpeg LUFS Loudnorm normalization results
I use the Loundnorm filter in Ffmpeg to normalize LUFS in a folder containing three audios, Music1.mp3, Music2.mp3 and Music3.mp3 using the double-pass method.
The LUFS and True Peak values are the ...
0
votes
0
answers
49
views
ffmpeg: Apply an expression to dynamically control intensity of lowpass, highpass, aphaser, or aecho
I'm fading in and out two sources, intertwined in the output. Now I want to apply lowpass, highpass, aphaser, and/or aecho to the transitions using a time-based expr.
I've already succeeded using the ...
0
votes
1
answer
75
views
cut the video at certain time and add another video at end , repeat this whole process for full video and make every video has seperate video parts
I have two videos. If one video length is 42 minutes 35 seconds and another video length is 46 seconds, now I need to add this 46 second video after every three minutes 50 seconds so that the added ...
0
votes
1
answer
126
views
FFmpeg image swipe animation
I want to animate with ffmpeg as in the picture. The animation must be 3 seconds long. Zoom in for 0.5 seconds at the beginning of the video Swipe left for 1 second Swipe right for 1 second Zoom out ...
1
vote
0
answers
39
views
Can anyone help e with FFMPEG on Centos 7
I have a script that requires FFMPEG but I cant seem to get it working on my Centos 7 server the script gives the following error:
ffmpeg version 2.8.15 Copyright (c) 2000-2018 the FFmpeg developers
...
0
votes
0
answers
74
views
How to run ffmpeg with hardware encoding when using --filter_complex to hardcode subtitles?
I'm converting MKV files and hardcoding subtitles into MP4 format. I have over 100 files and want to speed the process up by enabling hardware encoding. I am able to hardware encode without hardcoding ...
0
votes
0
answers
66
views
Ffmpeg - Generate loudnorm conversion log file
I have a bat file that reads several audio files in the "µudios LUFS" folder and performs LUFS normalization by copying the files to the "Normalized µudios Lufs" folder.
I'm trying ...
0
votes
0
answers
81
views
how to use ffmpeg to small size file .ts
How do I ensure that .ts files are no larger than 1024Kbps..?
I use this code
ffmpeg -i https://bitmovin-a.akamaihd.net/content/MI20192708/master.m3u8 -c:v libx264 -preset medium -crf 23 -c:a aac -b:a ...
0
votes
0
answers
1k
views
How to convert heic format to jpeg format
The ffmpeg master branch already supports the heic format. How do I pass parameters using the ffmpeg command to convert heic images to jpeg images of other resolutions?
ffmpeg -i test.heic output.jpg, ...
0
votes
2
answers
80
views
Creation of black half size frame in the middle of a split video stream results in an FFmpeg error
The error was raised against the creation of black half size frame in the middle of a split video stream.
The purpose of this script is to shift the dual fisheye images up by 20 pixels.
This file ...