• 2022-09-01
  • unique

ffmpeg notes


ffmpeg -i "$i" \
	-codec:v libx265 \
	-codec:a aac \
	-vf format=pix_fmts=yuv420p \
	-threads 0 \
	-ac 2 \
	-sn \
	-movflags faststart \
	-preset slow \
	"out/${i%.*}.mp4"

ffmpeg -i "$i" \
	-codec:v h264 \
	-codec:a aac \
	-vf format=pix_fmts=yuv420p \
	-threads 0 \
	-ac 2 \
	-sn \
	-movflags faststart \
	-preset slow \
	"out/${i%.*}.mp4"

ffmpeg -i clash-orig.mp4 \
	-codec:v h264 \
	-codec:a aac \
	-vf format=pix_fmts=yuv420p \
	-threads 0 \
	-ac 2 \
	-c:s mov_text \
	-movflags faststart \
	-preset slow \
	clash.mp4

for i in *.avi; do ffmpeg -i "$i" "${i%.*}.mp4"; done

for i in *.mkv; do ffmpeg -i "$i" -vcodec h264 -acodec aac -strict -2 -c:s mov_text "${i%.*}.mp4"; done

for i in *.mp4; do ffmpeg -i "$i" -i "Subs/${i%.*}/11_English.srt" -vcodec h264 -acodec aac -preset slow -crf 23 -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -pix_fmt yuv420p -bufsize 1000k -b: a 128k -y -c:s mov_text -disposition:s:0 default "out/${i%.*}.mp4"; done



 for i in *.mkv
 do
 	ffmpeg -i "$i" \
 		-c:v h264 \
 		-c:a aac \
 		-preset slow \
 		-crf 23 \
 		-vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" \
 		-pix_fmt yuv420p \
		-bufsize 1000k \
		-b:a 128k \
		-y \
		-c:s mov_text \
		-movflags +faststart \
		-disposition:s:0 default \
		"out/${i%.*}.mp4"
done

for i in *.mkv
do
	ffmpeg -i "$i" \
		-codec:video h264 \
		-codec:audio aac \
		-preset slow \
		-crf 23 \
		-pix_fmt yuv420p \
		-bitrate:audio 128k \
		-movflags +faststart \
		"out/${i%.*}.mp4"
	break
done

for i in *.mkv
do
	ffmpeg -i "$i" \
		-c:v h264 \
		-b:v 15M \
		-c:a aac \
		-b:a 128k \
		-crf 23 \
		-pix_fmt yuv420p \ # -vf format=yuv420p
		-movflags +faststart \
		-preset slow \
		-profile:v baseline \
		"out/${i%.*}.mp4"
	break
done

ffmpeg -i clash-orig.mp4 -codec:v h264 -codec:a aac -vf format=pix_fmts=yuv420p -threads 0 -ac 2 -c:s mov_text -movflags faststart -preset slow clash.mp4

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