All Questions
Tagged with ffmpeg ffmpeg-filters
51
questions
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
1
answer
144
views
Overlay a different png for each single frame of a video
I have a video and a set of images (each image for one video frame) I want to overlay the images over the video, each image over one single frame. The images and the video have the same size. I know ...
- 131
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
1
answer
354
views
FFmpeg add text in a box with rounded corners
Is there a way to add a text with countdown timer to a video using FFmpeg where the text is contained in a semi-transparent box with rounded corners with one of the side borders in a different color?
...
- 25
1
vote
1
answer
509
views
Adding timer to video using FFmpeg
I'm trying to find a way to add a countdown text to videos using FFmpeg.
I want the text to be "Time left: mm:ss" but to avoid leading zeros for minutes.
So, for example:
Time left: 10:01
...
- 25
1
vote
1
answer
365
views
Flip video with hardware acceleration ffmpeg on Windows 11
I am trying to use hardware acceleration to horizontally flip videos but I can't seem to get it right. I don't want to change the codec but just keep the same (just hflipped).
I am using Intel Arc Pro ...
- 321
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
1
answer
284
views
Combining audio and multiple videos with FFMPEG
I am working on a ffmpeg script to combine two videos with one audio file. The first video file should start after about 6 seconds and the second after about 40 seconds, and there should be a padding ...
- 13
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