USER_OPT+=" --h264-max-bit-depth=8  --disable-debug --disable-stripping --disable-shared --enable-pic --disable-autodetect --disable-runtime-cpudetect   --disable-all --enable-avutil --enable-avformat --enable-avcodec --enable-swresample --enable-ffprobe --disable-iconv --disable-pthreads --disable-dct --disable-dwt --disable-error-resilience --disable-rdft --disable-faan --disable-pixelutils    --disable-doc --disable-everything --disable-network    --enable-decoder=hevc,h264,aac,pcm_*law
--enable-demuxer=aac,h264,hevc,flv,mov,mpegts* --enable-bsf=extract_extradata"