(a) Ƶѡ
-b bitrate ñʣȱʡ200kb/s
-r fps ֡Ƶ ȱʡ25
-s size ֡С ȱʡ160X128.128X96176X144252X288320X240
-aspect aspect úݱ 4:3 16:9  1.3333 1.7777
-croptop size öгС صλ
-cropbottom size õײгС صλ
-cropleft size гС صλ
-cropright size ұгС صλ
-padtop size öĴС صλ
-padbottom size õײĴС صλ
-padleft size ߲ĴС صλ
-padright size ұ߲ĴС صλ
-padcolor color òɫ(hex,616Ƶ::У 000000ɫ)
-bt tolerance Ƶ̶kbit/s
-maxrate bitrateƵ̶
-minrate bitreate СƵ̶
-bufsize size ʿƻС
-vcodec codec ǿʹcodec뷽ʽ copyʾԭʼݱ뱻
-sameq ʹͬƵΪԴVBR
-pass n ѡ12ǳáһͳϢڶɾȷ
-passlogfile file ѡļ¼ļΪfile

(b)߼Ƶѡ
-g gop_size ͼС
-intra ֡ڱ
-qscale q ʹù̶Ƶ(VBR)
-qmin q СƵ(VBR)
-qmax q Ƶ(VBR)
-qdiff q ȼƫ (VBR)
-qblur blur Ƶữ(VBR)
-qcomp compression Ƶѹ(VBR)
-rc_init_cplx complexity һĳʼӶ
-b_qfactor factor pb֡qp
-i_qfactor factor pi֡qp
-b_qoffset offset pb֡qpƫ
-i_qoffset offset pi֡qpƫ
-rc_eq equation ʿƷ Ĭtex^qComp
-rc_override override ضµʿ
-me method ˶Ƶķ ÷ zero phods log x1 epzs(ȱʡ) full
-dct_algo algo dct㷨 õ 0 FF_DCT_AUTO ȱʡDCT 1 FF_DCT_FASTINT 2 FF_DCT_INT 3 FF_DCT_MMX 4 FF_DCT_MLIB 5 FF_DCT_ALTIVEC
-idct_algo algo idct㷨õ 0 FF_IDCT_AUTO ȱʡIDCT 1 FF_IDCT_INT 2 FF_IDCT_SIMPLE 3 FF_IDCT_SIMPLEMMX 4 FF_IDCT_LIBMPEG2MMX 5 FF_IDCT_PS2 6 FF_IDCT_MLIB 7 FF_IDCT_ARM 8 FF_IDCT_ALTIVEC 9 FF_IDCT_SH4 10 FF_IDCT_SIMPLEARM
-er n ôΪn 1 FF_ER_CAREFULL ȱʡ 2 FF_ER_COMPLIANT 3 FF_ER_AGGRESSIVE 4 FF_ER_VERY_AGGRESSIVE
-ec bit_mask ôڱΪbit_mask,ֵΪֵλ 1 FF_EC_GUESS_MVS (default=enabled) 2 FF_EC_DEBLOCK (default=enabled) 
-bf frames ʹframes B ֧֡mpeg1,mpeg2,mpeg4
-mbd mode  0 FF_MB_DECISION_SIMPLE ʹmb_cmp 1 FF_MB_DECISION_BITS 2 FF_MB_DECISION_RD
-4mv ʹ4˶ʸ mpeg4
-part ʹݻ mpeg4
-bug param ƹûбԶ⵽
-strict strictness ׼ϸ
-aic ʹܸ߼֡ڱ h263+
-umv ʹ˶ʸ h263+
-deinterlace ý֯
-interlace ǿȽ֯ mpeg2mpeg4Чǽ֯ĲҪֽ֯Сͼʧʱøѡѡķǲ֯ʧ
-psnr ѹ֡psnr
-vstats ƵͳƵvstats_hhmmss.log
-vhook module Ƶģ module ģͲÿոֿ

(c)Ƶѡ
-ab bitrate Ƶ
-ar freq Ƶ
-ac channels ͨ ȱʡΪ1
-an ʹƵ¼
-acodec codec ʹcodec

(d)߼ѡ
-map file:stream ӳ
-debug ӡضϢ
-benchmark Ϊ׼Լʱ
-hex 㵹ÿһ
-bitexact ʹλȷ㷨 ڱ
-ps size ðСbitsΪλ
-re Ա֡ƵݣҪģⲶ豸
-loop ѭֻͼffserver