Questions tagged [video]
Questions about video editing, streaming, conversion, capturing or video output. Use a more specific tag if possible.
6,365 questions
1
vote
0
answers
56
views
What is wrong with video decoding and video playback in my machine on VirtualBox?
This happening on a Windows 10 machine. I enabled "3D acceleration" and put the VRAM to maximum capacity (256MB) which is should be no problem at this point from previous VM perspective.
I ...
- 123
0
votes
0
answers
69
views
Audio desync at clip joins
I'm re-encoding some old torrented files and have encountered a timestamp problem (according to a commenter on the ffmpeg subreddit). I have no idea how to fix it.
The files I originally downloaded ...
- 119
5
votes
2
answers
838
views
How can I rip a DVD without making it repeat parts of the film in different languages?
I am making backups of my DVDs. For this I use dvdbackup to rip the DVD, and cat and ffmpeg to convert it to a single .mp4 file.
Here is the problem: some films have text on the screen in the movie (...
- 63
2
votes
1
answer
49
views
FFmpeg audio fade-out not applied when generating video with image sequence + mp3 (audio cuts abruptly)
I’m generating a video in Android using FFmpeg (via FFmpegKit). The video is created from an image sequence, a GIF overlay and an MP3 audio file.
The problem: the audio always ends abruptly.
I’m ...
- 131
5
votes
1
answer
590
views
How to add `.srt` subtitles to an `.mkv` container using `ffmpeg`?
When I want to add text-based (file extension .srt) subtitles to an .mp4 container, the following command works well:
ffmpeg -i input.mp4 -i subtitle-in.srt -c copy -c:s mov_text -metadata:s:s:0 ...
- 286
-1
votes
1
answer
117
views
How to prepare for the next ffmpeg (8.x and above) compilation?
I use vmaf and therefore had to compile ffmpeg. It seems Ubuntu-Mate 26.04 LTS will come with an updated ffmpeg version. This will lead to a necessary further compilation of ffmpeg.
There are a lot of ...
- 163
0
votes
0
answers
65
views
FFmpeg: how to use different source folders in a loop for a Windows-CMD?
Let say one has the following task: One has two source folders, let say video1 and video2. In this both folders are video files with the same names, for example video1\videoFile1.mp4 and video2\...
- 169
3
votes
0
answers
42
views
Why is video playback laggy without any indication of a serious hardware load?
I have an MSI laptop and a 55-inch 4k TV connected via HDMI.
My laptop has the NVIDIA GTX 1660 Ti, an i7-9750H, and 16GB of DDR4@2666MHz.
When I have both my laptop's screen and my TV on (extended ...
- 153
1
vote
0
answers
82
views
How to recover the original video from two edited versions with watermarks [closed]
I have two video files that have watermarks on them, which were produced from the same file. It looks obvious that by combining those files it should be possible to produce the video without ...
- 141
0
votes
0
answers
360
views
How do I get shaders to work in MPV?
I have been trying to get shaders to work in MPV but I can't seem to get it to work. I have my shaders in my folder and they're added in my conf so I don't know why it's not working. Is there a fix ...
- 29
1
vote
0
answers
102
views
FFmpeg: advantages and drawbacks of DTS/TrueHD vs. FLAC
Let say one have two video files test1DTS.m2ts (test1TrueHD.m2ts) and test2DTS.m2ts (test2TrueHD.m2ts). FFprobe shows the following (relevant) information (both files [true for both DTS and TrueHD] ...
- 169
1
vote
1
answer
147
views
Why am I experiencing MPV framerate/stuttering issues with HDR video on Fedora Gnome?
I am using Fedora Gnome on a Dell XPS 15 laptop. I have a dedicated RTX Nvidia 4060 laptop GPU, however MPV only utilises the intel integrated GPU.
The issue is frame rate stuttering when playing HDR ...
- 143
0
votes
0
answers
214
views
How to merge several .ts files with FFmpeg?
I recorded 2 movies and a documentary from the BBC the other day. It is a satellite receiver and the lot is recorded with a USB flash drive FAT32. The latter is important cause the files cannot be ...
- 9
0
votes
0
answers
43
views
FFmpeg UDP Multicast: Video missing or frozen for first 2 seconds while audio plays immediately
Question:
I am recording a local IPTV UDP multicast stream (MPEG-TS) using FFmpeg. While the stream works fine after a few seconds, the beginning of every recording is corrupted.
The Problem:
0-1s: ...
5
votes
1
answer
265
views
Extract Metadata "comment" from MP4 using ffmpeg
I am trying to use ffmpeg to extract the Metadata description from MP4 files.
I tried using this:
ffmpeg -i Video.mp4 -f ffmetadata in.txt
but this gave me all the metadata as in the below image
so ...
