Instead, following command of fixing bitrate works. This means the video timewindow is cut down, so it looks not to be useful for shrink file size without cut timewindow of the video. However, "-fs 10M" option stops renderring when it reaches to the file size (it might be limited in some cases). However, the output file reaches to 19MB. $ ffmpeg -i IMG_1381.MOV -vf transpose=2 -metadata:s:v:0 rotate=0 \įor making video file < 10MB, I tried the command of "variable bit rate" like ffmpeg -i input_video -vcodec libx264 -crf 25 -preset medium -vf scale=-2:1080 -acodec libmp3lame -q:a 4 -ar 48000 -ac 2 output_video.mp4. ffmpeg -i -vf transpose=2 -metadata:s:v:0 rotate=0 ffmpeg -i -vf transpose=1 -metadata:s:v:0 rotate=0 $ ffmpeg -i PoTone_Outline_FA2020week2.mp4 \ Scaled with pad option by ffmpeg (720:720 in pad(1028:768) 15.4MB) ■Crop video If you want to keep aspect rate of the video, specify "scale=:-1". $ ffmpeg -i PoTone_Outline_FA2020week2.mp4 Original video by ffmpeg (1024:768, 11.3MB) ■Scale video
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