Questions tagged [ffmpeg]
Only questions about programmatic use of the FFmpeg libraries, API, or tools are on topic. Questions about interactive use of the command line tool should be asked on Super User or Video Production. FFmpeg is a free, open source project that produces libraries and programs for handling multimedia data.
ffmpeg
26,118
questions
-1
votes
0
answers
13
views
ffmpeg does not respect the -t option and keeps recording
The command I use is:
ffmpeg -f avfoundation -framerate 30 -i "2:0" -vcodec libx264 -pix_fmt yuv420p -acodec aac -strict experimental -t 10 ./recordings/tmp.mp4
With the above command, I ...
-1
votes
0
answers
11
views
Generate video thumbnails without opening file explorer on Linux
I noticed that thumbnails of videos are generated when I open my file explorer (Thunar).
I guess it uses external package such as tumbler and/or ffmpegthumbnailer
But I don't know how to check the ...
- 1
-2
votes
0
answers
13
views
FFMPEG burn subtitle to master.m3u8 file
Hey i use ffmpeg to process video into hls stream and generate screenshots using this command
ffmpeg -y -i /tmp/input.mp4 \
-vf fps=1/10 thumbnails/thumbnail_%03d.jpg \
-preset slow -g 48 -...
- 119
-1
votes
1
answer
19
views
Scalable video file integrity verification in python
I have directory with ~1 million video files nested under 100 sub-directories. I want to write a python script that verifies that these files are not corrupted, then delete the files that are ...
- 1,174
-1
votes
0
answers
10
views
how to stream a video with canon on raspberrypi4 to pc with rtsp poctocol or other protocol
i want to stream or live view with canon camera in gphoto2 module on raspberry pi 4
how to send live view data to pc with lan cable?
i use gphoto2 and rtsp protocol with many error
can anyone do this?
...
- 1
0
votes
0
answers
17
views
Piping yt_dlp to FFMPEG using python: ffmpeg failing to recognize video data from pipe
I am trying to pipe the output of yt_dlp into a pipe used by ffmpeg which then outputs.:
def pipe_function(url):
ydl_command = [
'yt-dlp', '-f', 'bestvideo+bestaudio', '--quiet', '--no-warnings', ...
- 864
0
votes
0
answers
14
views
why am i getting this error when using FFmpeg in a spring boot app on a mac intel device: SIGSEGV (0xb) at pc=0x000000013d71b0e0, pid=49777, tid=42755
I am working with FFmpeg library in spring boot app to stream live recording from an ip camera via RSTP and save to S3 bucket but i am running into the error below.
A fatal error has been detected by ...
-2
votes
0
answers
13
views
FFmpeg individual image zoom-in transition
I'm stuck with an ffmpeg command that needs to generate a video. Originally, I had an ffmpeg command that would loop through images and change after a certain amount of time. Now, to improve the video ...
-1
votes
0
answers
21
views
FFmpeg: Issues for Transparent Background in WebM Video [closed]
I've encountered an issue while processing videos with FFmpeg. I want to convert a MOV video with an alpha channel to WebM format and overlay it onto a main video. Below are the steps I took and the ...
- 1
0
votes
0
answers
34
views
.exe file, works different than .py file
I've made the YouTube Dowbloader App, and everything is working properly (run in PyCharm), but when I try to make it executable with pyinstaller, it's not working.
This is the link to the repo:
...
- 1
-2
votes
0
answers
15
views
ffmpeg issue when adding subtitles
previously this code was working well but when I tried to merge the subtitles with the video an error occurred what could be?
// Path to the subtitle file
const subtitleFilePath = path.resolve('C:\...
- 121
-3
votes
0
answers
19
views
timelapse from live stream with ffmpeg [closed]
I have a webcam connected to my windows 11 pc and I want to make a timelapse video.
using the following I can make a video but if I leave it on for hours its too long so I want to capture only 1 frame ...
- 130
-2
votes
0
answers
21
views
How to record audio with ffmpeg on ubuntu with python?
I encountered the problem of recording output audio on Ubuntu with Python.
I want to record the output sound from the browser.
I used USB Headphone as the output device, then record sounded with ...
- 41
-2
votes
0
answers
24
views
FFMPEG : how i enable -decryption_key instead of -cenc_decryption_key when i do my ffmpeg build? [closed]
i have é different ffmpeg bins , the first one have this option :
dash AVOptions:
-allowed_extensions .D......... List of file extensions that dash is allowed to access (default "aac,m4a,...
0
votes
0
answers
16
views
#0 does not contain any stream [closed]
ffmpeg exited with code 1: Output #0, mp4, to 'D:\billion-view\video-compilation-electron-app.billionviews\simple_audio\yt-video-best-short-motivational-speech-video-24-hours-1-minute-motivation-2-...
- 1