[FFmpeg-user] 4K Compression using x.265 issues
rbarnes at njdevils.net
Fri Nov 16 14:00:24 EET 2018
For some reason the below command is not working right. I am unable to compress my movie by an significant amount.
The input movie (MYMOVIE.Mkv) is just over 55GB and the resulting output is just over 53GB.
I thought (and I am probably wrong) that by raising or lowering the -crf value would increase or decrease the size of my output file. No matter what value I use, be it 18 or 28, the output file size is always the same.
Can anyone determine where I'm going south in order to decrease the files's footprint (size) yet still preserve the movie quality?
I want to take all the audio streams (only audio) and I am converting them to mp3 because I do not have a very good sound system and the actual 7.1 audio stream sounds awful.
ffmpeg -i "MYMOVIE.Mkv" -c:v libx265 -preset medium -map 0 -c:a:0 libmp3lame -b:a:0 128k -c copy -reserve_index_space 1000k -crf 28 -s 3840x2160 -b:v 10M -ac 2 -c:a aac -b:a 128k -metadata title="MYMOVIE" COMPRESSED_MYMOVIE.mkv
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