ffmpeg - Is it possible to have two images in a single frame in motion jpeg? -


i have quick time video file, video stream in motion jpeg format, extract every frame in file

ffmpeg -i a.mov -vcodec copy -f image2 %d.jpg

i found in every jpeg file, there 2 ffd8 marker, means there two images in 1 single jpeg file.

is correct? file interlaced? special need pass codec?

yes, motion jpeg supports interlaced format. if jpeg file half of full video size, mean mov interlaced, , cannot use -vcodec copy extract frames. try ffmpeg -deinterlace or use yadif filter.


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