Telegram - Create Video Sticker (.WEBM) with FFMPEG

telegram_video_sticker_ffmpeg.md

Command

ffmpeg -y -i animated_sticker.mov -r 30 -t 2.99 -an -c:v libvpx-vp9 -pix_fmt yuva420p -s 512x512 -b:v 400K output.webm

• If .webm file size greater than 256 KB, you should reduce "-b:v 400K"
• .mov video file may has alpha channel but not required.
• My video sticker pack for example: https://t.me/addstickers/msn_animations

Telegram Sticker Command

• Go to @Stickers and type "/newvideo"
• Type a name for sticker pack.
• Send your .webm file, then type any emoji.
• Follow bot's directions.

If the video has non 1:1 aspect ratio this command will make the resulting video stretched. Here's a fix:

ffmpeg -y -i animated_sticker.mov -r 30 -t 2.99 -an -c:v libvpx-vp9 -pix_fmt yuva420p -vf 'scale=512:512:force_original_aspect_ratio=decrease' -b:v 400K output.webm

If the video has non 1:1 aspect ratio this command will make the resulting video stretched. Here's a fix:

ffmpeg -y -i animated_sticker.mov -r 30 -t 2.99 -an -c:v libvpx-vp9 -pix_fmt yuva420p -vf 'scale=512:512:force_original_aspect_ratio=decrease' -b:v 400K output.webm

@andreyorst Thanks.