png sequence to mp4 ffmpeg
ffmpeg -r 60 -f image2 -s 1920x1080 -i pic%04d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p test.mp4
-r is fps
-crf is quality, lower means better
-s is resolution
-pix_fmt is pixel format
png sequence to mp4 ffmpeg
ffmpeg -r 60 -f image2 -s 1920x1080 -i pic%04d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p test.mp4
-r is fps
-crf is quality, lower means better
-s is resolution
-pix_fmt is pixel format
ffmpeg images to video
ffmpeg -r 30 -s 1920x1080 -i pic%04d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p test.mp4
ffmpeg images to video
ffmpeg -r 10 -f image2 -i img_%d.png -s 40x40 -crf 25 -c:v libx264 -pix_fmt yuv420p video.mp4 -q:v 0 -q:a 0
ffmpeg extract images from video
# extract single image from timestamp
# -ss : seek to position
# -vframes:v 1 : extract single image
ffmpeg -i input.mov -ss 00:00:15 -vframes:v 1 out.png
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