Questions tagged [thumbnails]
The thumbnails tag has no summary.
12 questions
7 votes
2 answers
5k views
Is it possible to embed a thumbnail in a .mkv file?
I am trying to embed a thumbnail in a .mkv file with h265 video encoding using ffmpeg from the Linux command line. I am able to embed thumbnails in h264-encoded .mp4 files using the following command: ...
0 votes
1 answer
1k views
FFmpeg embed thumbnail Windows
I have seen commands like this online: ffmpeg -i video.mp4 -i image.png -map 1 -map 0 -c copy \ -disposition:0 attached_pic out.mp4 However these command don't work as advertised with Windows ...
- 1
0 votes
1 answer
328 views
Generating thumbnail from only the first megabytes of a video file
I want to create one thumbnail consisting of the first frame of a video for arbitrary video files. I do it like this: ffmpeg -i video.mkv -vf scale=w=300:h=300:force_original_aspect_ratio=decrease -...
- 105
0 votes
1 answer
569 views
Capturing and tiling video thumbnails in a single step
I have a server software that generates video thumbnails using ffmpeg in two steps like this: Step 1 -ss 00:00:19.7500417 -i "S:\vids\main.mp4" -ss 00:00:39.5000834 -i "S:\vids\main.mp4" -ss 00:00:...
- 3
0 votes
0 answers
91 views
Netflix preview video production
Netflix auto-plays a 20s, 30s video preview in the background if a video is selected or we hover the mouse pointer on them. I was trying to play with them, but couldn't understand how this preview "...
- 353
2 votes
3 answers
9k views
ffmpeg : Copy all the streams (including cover art) except the first video stream from one MP4 file to another
I want to copy all the streams (including cover art) except the first video stream from one MP4 file to another, here is what I do : $ time ffmpeg -hide_banner -i toto1.mp4 -map 0 -vn -c:v:1 copy -c ...
- 175
0 votes
1 answer
1k views
Generating video thumbnails preview / contact sheet in batch, color issue
I have a large collection of videos to sort out, and for that purpose I want to create a thumbnail preview for each one of them, as quickly and efficiently as possible. I have tested several tools ...
- 101
3 votes
0 answers
1k views
Extract file thumbnail from mp4 file
I'm currently converting a few mp4 file to mkv. In the process they lose their file thumbnails and I wanted to keep them. So I'm searching for a way to extract the custom thumbnails from the mp4 files ...
- 31
2 votes
1 answer
5k views
How to add a time stamp using ffmpeg to a screenshot capture of a video
I am trying to output a screenshot of a video at an specified time and the resulting picture should have a black square with the time that was given initially. So far I was only able to produce a ...
5 votes
1 answer
8k views
Extract key frame from video with ffmpeg
I have a need to generate a thumbnail for videos for a web application and I am currently doing that with this command: ffmpeg -ss <seconds> -i <input file> -vframes 1 -y <output file&...
- 153
2 votes
0 answers
46 views
Wrong YouTube thumbnail seen by Facebook Advertisement team [closed]
I have a really weird issue. When I publish my YouTube video (1 hour long if that matters) I usually set a Custom thumbnail, which has a fixed amount of text on it, so it corresponds with the ...
- 121
2 votes
1 answer
270 views
Maintaining thumbnails in Premiere CC
When I open a bin containing video files in Premiere CC on a Mac, if I want to view the video files as thumbnails, I have to wait quite a few seconds every time. Is there a setting so that I can ...
- 8,344