ffmpeg 命令列實用總結

${FFMPEG} -s 1920x1080 -i ${SEQ_01} -psnr -vcodec libx264 -profile:v baseline -level 4.0 -tune zerolatency -preset placebo -g 15 -sc_threshold 0 -b:v 2000k -x264opts "bframes=0" test_00.264

ffmpeg -i INPUT -c:v libx264 -x264-params level=30:bframes=0:weightp=0:\
cabac=0:ref=1:vbv-maxrate=768:vbv-bufsize=2000:analyse=all:me=umh:\
no-fast-pskip=1:subq=6:8x8dct=0:trellis=0 OUTPU

References:

https://ffmpeg.org/ffmpeg.html#Stream-specifiers
https://blog.csdn.net/Lyman_Ye/article/details/80305904
https://blog.csdn.net/avsuper/article/details/54918465
ffmpeg-4.0.2\doc\encoders.texi

https://ffmpeg.org/ffmpeg-codecs.html#libx264_002c-libx264rgb

MPEG-4 AVC/H.264 Video Codecs Comparison 2010http://www.compression.ru/video/codec_comparison/h264_2010/appendixes.html#Appendix_8

影像質量的客觀評估指標PSNR與SSIM

https://blog.csdn.net/lu597203933/article/details/51019732

https://blog.csdn.net/ecnu18918079120/article/details/60149864

https://stackoverflow.com/questions/18571083/calculate-ssim-value-for-a-video

https://blog.csdn.net/Cool_ben/article/details/46597967