ask ffmpeg subtitle and watermark on debian8 with no loss quality

please help for my case i have trouble on here for ffmpeg i use the command :

ffmpeg -i whiskey.mkv -threads 0 -c:v libx264 -crf 28 -preset veryslow -vf "movie=logo.png[wm];[in][wm]overlay=0:0,subtitles=whiskey.srt[out]" whiskey2.mp4

but error

root@:~/ffmpeg# ffmpeg -i whiskey.mkv -threads 0 -c:v libx264 -crf 2 8 -preset veryslow -vf "movie=logo.png[wm];[in][wm]overlay=0:0,subtitles=whiskey .srt[out]" whiskey2.mp4 ffmpeg version N-80522-ge0faad8 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.9.2 (Debian 4.9.2-10) configuration: libavutil 55. 24.100 / 55. 24.100 libavcodec 57. 46.100 / 57. 46.100 libavformat 57. 38.102 / 57. 38.102 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 46.102 / 6. 46.102 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 Unrecognized option 'crf'. Error splitting the argument list: Option not found root@:~/ffmpeg#

can you help for my case? or if you have any command for encode watermark + subb with no loss quality please tell me.

THANK YOU Very Much

Recent Questions...