All Questions
Tagged with ffmpeg ffmpeg-filters
34
questions with no upvoted or accepted answers
3
votes
0
answers
7k
views
ffmpeg -vsync deprecated, use -fps_mode
I used to use -vsync -1 to Auto Sync a Audio and Video input stream using the -copy switch as they would get out of sync at times and sometimes not so can't specify any seconds for a delay setting but ...
- 125
2
votes
0
answers
5k
views
HDR to SDR conversion with ffmpeg
I have some 4K HDR video, which looks very dark (and redish) if directly played on a non-HDR device (in practice with VLC), which is a known issue. I'm trying to convert it to SDR using ffmpeg, and ...
- 1,639
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
...
- 11
1
vote
1
answer
702
views
Error submitting a packet to the muxer: Cannot allocate memory
I'm attempting to trim and concatenate several video files using ffmpeg. These videos have already been transcoded with H.264 at a resolution of 720p. However, when executing the command, I encounter ...
- 11
1
vote
0
answers
225
views
concatenating multiple files is giving Non-monotonic DTS in output stream error
I am trying to concatenate multiple video files with ffmpeg and python with the following code :-
def story(path):
videos = [f for f in os.listdir(path) if f.endswith(".mp4")]
print(videos)
...
- 41
1
vote
1
answer
94
views
Splitting, trimming, converting to image and concatenating issues with FFmpeg
I am new to FFmpeg. I read some essential basics but cannot figure out why the following command does not work. The script is written in Windows in PowerShell.
ffmpeg -hide_banner `
-loop 1 -t 3 -i ...
- 711
1
vote
0
answers
65
views
Side by side video with multiple single image sources
I'm creating 4 video files with 4 different single images sources (with pattern_type glob):
ffmpeg -framerate 2 -pattern_type glob -i './1/*.jpg' -y out_1.mp4
ffmpeg -framerate 2 -pattern_type glob -i ...
- 11
1
vote
0
answers
379
views
How to Speed Up Complex Text Overlay in FFmpeg
I'm using FFmpeg to overlay text on videos, and I find the process to be quite slow. The operation becomes especially slow when I add complex drawtext filters. I'm running this on a MacBook Pro with ...
- 11
1
vote
1
answer
118
views
ffmpeg, need help to make small thumbnail slideshow video from long video
With ffmpeg command, I am trying to create a small thumbnail slideshow video of a large video
by selecting one frame every 60 seconds and then combining those frames to make a video in a way that each ...
- 11
1
vote
0
answers
316
views
FFMPEG - 1080i - Using yadif and images still seem blurred/interlaced
I am trying to look at getting some images automatically from an mp4 that was recorded from a 1080i output. We usually receive 1080p and all works well. But in this instance, that is not an option. We ...
- 121
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/...
- 121
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 ...
- 67
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 ...
- 291