Revision of FFMPEG_tricks.md

1 file changed, 24 insertions

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1	+
2	+	## convert 10-12bit h265 to 8bit h264
3	+	```sh
4	+	# with specific formats and to mkv
5	+	ffmpeg -i input.mkv -map 0 -c:v libx264 -crf 18 -vf format=yuv420p -c:a copy output.mkv
6	+
7	+	# quick and default and convert to mp4
8	+	ffmpeg -i input.mkv -c:v libx264 -c:a aac output.mp4
9	+	```
10	+
11	+	## remove subtitles
12	+	```sh
13	+	# Remove subtitles from a mp4, -map 0 to not affect the rest
14	+	ffmpeg -i input.mp4 -map 0 -c copy -sn output.mp4
15	+
16	+	# And on multiple at once
17	+	for i in *.mp4 ; do ffmpeg -i "$i" -map 0 -c copy -sn "{$i%.mp4).sn.mp4"; done
18	+	```
19	+
20	+	## convert videofile to gif
21	+	```sh
22	+	# By doing a 2pass palette build to get correct colors
23	+	ffmpeg -i input.mp4 -filter_complex "[0:v] fps=10,scale=480:-1:flags=lanczos,split [a][b];[a] palettegen [p];[b][p] paletteuse" output.gif
24	+	```

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