Input options:
-i string : input filename (default=stdin)
-type integer: input data type (yuv=0, pgm=1, avisynth=2)
-w integer: frame width ([1.2048])
-h integer: frame height ([1.2048])
-frames integer: number of frames to encode
Output options:
-dump : save decoder output
-save : save an Elementary Stream file per frame
-o string: save an Elementary Stream for the complete sequence
Bitstream options:
-prf profile : indicated profile ([S0.S3] or [AS0.AS5])
(default=unrestricted)
-par aspect_ratio : pixel aspect ratio ([VGA11; PAL43; NTSC43; PAL169;
NTSC169]) (default=VGA11)
-custom_par X Y : custom pixel aspect ratio
-divx_ud : write DivX-userdata
-vol_ivop : repeat VOL at every I-VOP
General encoding options:
-quality integer: quality ([0..6]) presets
-hqacp : high quality ac prediction
-inter4v : use 4 motion vectors per MB
-gmc : use global motion compensation
-interlaced : use interlaced encoding (this is NOT a deinterlacer!)
-i_tff : top field first (interlaced encoding)
-i_alt : alternate scan (interlaced encoding)
-reduced_res : enable reduced resolution
-force_rrv : force all frames to be reduced resolution
-greyscale : greyscale mode, all chroma is ignored
-cartoon : use 'cartoon' mode
-chroma_opt : enable chroma-optimizer pre-filter
-frame_drop integer: frame drop ratio (in percent)
BFrames options:
-max_bframes integer : max bframes (default=0)
-bquant_ratio integer : bframe quantizer ratio (default=150)
-bquant_offset integer : bframe quantizer offset (default=100)
-packed : packed mode (DO NOT USE! WILL CORRUPT OUTPUT!)
-closed_gop : closed GOP mode
Rate control options:
-framerate float : target framerate (>0 | default=25.0)
-bitrate integer : target bitrate
-single : single pass mode
-pass1 filename : twopass mode (first pass)
-pass2 filename : twopass mode (2nd pass)
-zq starting_frame float : bitrate zone; quant
-zw starting_frame float : bitrate zone; weight
-max_key_interval integer : maximum keyframe interval
Single Pass options:
-cquant float : target quantizer (use instead of bitrate)
-reac_delay integer : reaction delay factor
-avg_period integer : averaging period
-smoother integer : smoother
Pass 1 of 2 options:
-full_1p : Full first pass
Pass 2 of 2 options:
-size integer : target size of video (use instead of bitrate)
-keyframe_boost integer : keyframe boost (in percent)
-close_i_red intA intB : I frames closer than A frames are reduced by B%
-ccp_high integer : high bitrate degradation (in percent)
-ccp_low integer : low bitrate improvement (in percent)
-max_oi integer : max overflow improvement (in percent)
-max_od integer : max overflow degradation (in percent)
-overf_cs integer : overflow control strength (in percent)
-dxn_prf profile : apply DXN-Profile ([HH; PPAL; PNTSC; HTPAL;
HTNTSC; HDTV])
-vbv_size integer : buffer size (bits)
-vbv_initial integer : initial buffer occupancy (bits)
-vbv_maxrate integer : max processing bitrate (bps)
-vbv_peakrate integer : max average bitrate over 3 seconds (bps)
Zone options:
-zq starting_frame float : bitrate zone; quant
-zw starting_frame float : bitrate zone; weight
Quantization options:
-iquants min max : I-frame quantizer restriction ([1.31])
-pquants min max : P-frame quantizer restriction ([1.31])
-bquants min max : B-frame quantizer restriction ([1.31])
-trellis : use trellis based R-D "optimal" quantization
-mpeg_quant : use MPEG quantization instead of H.263
-mpeg_cqm filename : use custom MPEG quantization matrix (intra & inter)
-mpeg_intra_cqm filename : use custom MPEG quantization matrix (intra only)
-mpeg_inter_cqm filename : use custom MPEG quantization matrix (inter only)
-lumimasking : use lumimasking/adaptive quantization algorithm
Motion estimation options:
-hpel : use half pixel ME
-qpel : use quarter pixel ME
-chromap : use P-Frame chroma for ME
-chromab : use B-Frame chroma for ME
-me_advd16 : use advanced diamonds as search pattern
-me_advd8 : use advanced diamonds for extended 8x8 search
-me_sqr16 : use squares as search pattern
-me_sqr8 : use squares for extended 8x8 search
-me_hpelr16 : enable halfpel refine 16
-me_qpelr16 : enable quarterpel refine 16
-me_hpelr8 : enable halfpel refine 8
-me_qpelr8 : enable quarterpel refine 8
-me_gmer : enable GME refine
-me_exts16 : extend PMV by more searches
-me_exts8 : extended 8x8 search
Rate disortion options:
-vhq integer : R-D presets ([1.4])
-rated : enable R-D
-rd_simple : use simplified R-D mode decision
-rd_bf : enable R-D for B-frames
-rd_hpelr16 : use R-D halfpel refine 16
-rd_qpelr16 : use R-D quarterpel refine 16
-rd_hpelr8 : use R-D halfpel refine 8
-rd_qpelr8 : use R-D quarterpel refine 8
-rd_chk_pred : check vector equal to prediction
-rd_exts : perform R-D-based search using square patterns
Turbo options:
-turbo : turbo preset
-t_fr16 : low-complexity 16 refinement
-t_fr8 : low-complexity 8x8 sub-block refinement
-t_skipds : skip b-frame delta search
-t_fmi : partly skip interpolate mode
-t_bfes : stop b-frame search early
-t_dsm : detect stationary scenes
Other options
-asm : use assembly optmized code
-stats : print stats about encoded frames
-debug : activates xvidcore internal debugging output
-vop_debug : print some info directly into encoded frames
-help : prints this help message
NB: You can define 64 zones repeating the -z[qw] option as many times as needed.
