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Thumbnails & Screenshots using FFmpeg - 3 Efficient ...
https://ottverse.com/thumbnails-screenshots-using-ffmpeg/
Here is a simple one-liner that can take care of creating a thumbnail and resizing it for you. ffmpeg -i input1080p.mp4 -r 1 -s 1280x720 -f image2 screenshot-%03d.jpg. The -r command sets the output frame rate (=1) and image2 is an image file muxer that is used to write video frames to image files.
How do I add a custom thumbnail to a .mp4 file using …
https://stackoverflow.com/questions/54717175/how-do-i-add-a-custom-thumbnail-to-a-mp4-file-using-ffmpeg
To add an embedded cover/thumbnail: ffmpeg -i in.mp4 -i IMAGE -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic out.mp4. Not all muxers support embedded thumbnails, and those who do, only support a few formats, like JPEG or PNG. Share. Improve this answer. Follow this answer to receive notifications.
Thumbnail on any video/audio file? : ffmpeg
https://www.reddit.com/r/ffmpeg/comments/m6dpo8/thumbnail_on_any_videoaudio_file/
ffmpeg -i in.mp4 -i thumbnail.jpg -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic out.mp4 Also, is it possible to automate this action with r/youtubedl, so, if downloading a video or audio, together with the thumbnail, the thumbnail afterwards gets attached to the video or audio file? Just use the yt-dlp fork instead. Easier.
Thumbnail a Video with FFMPEG - Ring of Saturn
https://networking.ringofsaturn.com/Unix/extractthumbnail.php
Using FFMPEG to Extract a Thumbnail from a Video. You can use the open source ffmpeg program to extract a frame to use as a thumbnail for a video. I use this for zenphoto whereby I name the jpg file as the same name as the flv video to show a thumbnail on line. The example below shows: -s 400x222 = Output size.
ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html
There are three output files specified, and for the first two, no -map options are set, so ffmpeg will select streams for these two files automatically.. out1.mkv is a Matroska container file and accepts video, audio and subtitle streams, so ffmpeg will try to select one of each type. For video, it will select stream 0 from B.mp4, which has the highest resolution among all the …
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