ffmpeg version N-55686-g6656edc-_N-35236-g4704462, Copyright (c) 2000-2011 the FFmpeg developers
  built on Nov 29 2011 02:52:16 with gcc 4.6.1

Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Main options:
-L                  show license
-h                  show help
-?                  show help
-help               show help
--help              show help
-version            show version
-formats            show available formats
-codecs             show available codecs
-bsfs               show available bit stream filters
-protocols          show available protocols
-filters            show available filters
-pix_fmts           show available pixel formats
-sample_fmts        show available audio sample formats
-loglevel loglevel  set libav* logging level
-v loglevel         set libav* logging level
-debug flags        set debug flags
-f fmt              force format
-i filename         input file name
-y                  overwrite output files
-n                  do not overwrite output files
-c codec            codec name
-codec codec        codec name
-pre preset         preset name
-t duration         record or transcode "duration" seconds of audio/video
-fs limit_size      set the limit file size in bytes
-ss time_off        set the start time offset
-itsoffset time_off  set the input ts offset
-itsscale scale     set the input ts scale
-timestamp time     set the recording timestamp ('now' to set the current time)
-metadata string=string  add metadata
-dframes number     set the number of data frames to record
-timelimit limit    set max runtime in seconds
-target type        specify target file type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd", "ntsc-svcd", ...)
-xerror             exit on error
-frames number      set the number of frames to record
-tag fourcc/tag     force codec tag/fourcc
-filter filter_list  set stream filterchain
-stats              print progress report during encoding
-attach filename    add an attachment to the output file
-dump_attachment filename  extract an attachment into a file
-bsf bitstream_filters  A comma-separated list of bitstream filters
-dcodec codec       force data codec ('copy' to copy stream)

Advanced options:
-map file.stream[:syncfile.syncstream]  set input stream mapping
-map_channel file.stream.channel[:syncfile.syncstream]  map an audio channel from one stream to another
-map_meta_data outfile[,metadata]:infile[,metadata]  DEPRECATED set meta data information of outfile from infile
-map_metadata outfile[,metadata]:infile[,metadata]  set metadata information of outfile from infile
-map_chapters input_file_index  set chapters mapping
-benchmark          add timings for benchmarking
-dump               dump each input packet
-hex                when dumping packets, also dump the payload
-re                 read input at native frame rate
-loop_input         deprecated, use -loop
-loop_output        deprecated, use -loop
-vsync              video sync method
-async              audio sync method
-adrift_threshold threshold  audio drift threshold
-copyts             copy timestamps
-copytb             copy input stream time base when stream copying
-shortest           finish encoding within shortest input
-dts_delta_threshold threshold  timestamp discontinuity delta threshold
-copyinkf           copy initial non-keyframes
-q q                use fixed quality scale (VBR)
-qscale q           use fixed quality scale (VBR)
-streamid streamIndex:value  set the value of an outfile streamid
-muxdelay seconds   set the maximum demux-decode delay
-muxpreload seconds  set the initial demux-decode delay
-fpre filename      set options from indicated preset file

Video options:
-vframes number     set the number of video frames to record
-r rate             set frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-bits_per_raw_sample number  set the number of bits per raw sample
-croptop size       Removed, use the crop filter instead
-cropbottom size    Removed, use the crop filter instead
-cropleft size      Removed, use the crop filter instead
-cropright size     Removed, use the crop filter instead
-padtop size        Removed, use the pad filter instead
-padbottom size     Removed, use the pad filter instead
-padleft size       Removed, use the pad filter instead
-padright size      Removed, use the pad filter instead
-padcolor color     Removed, use the pad filter instead
-vn                 disable video
-vcodec codec       force video codec ('copy' to copy stream)
-sameq              use same quantizer as source (implies VBR)
-same_quant         use same quantizer as source (implies VBR)
-pass n             select the pass number (1 or 2)
-passlogfile prefix  select two pass log file name prefix
-vfilters filter list  video filters
-b bitrate          video bitrate (please use -b:v)

Advanced Video options:
-pix_fmt format     set pixel format
-intra              use only intra frames
-vdt n              discard threshold
-rc_override override  rate control override for specific intervals
-deinterlace        deinterlace pictures
-psnr               calculate PSNR of compressed frames
-vstats             dump video coding statistics to file
-vstats_file file   dump video coding statistics to file
-intra_matrix matrix  specify intra matrix coeffs
-inter_matrix matrix  specify inter matrix coeffs
-top                top=1/bottom=0/auto=-1 field first
-dc precision       intra_dc_precision
-vtag fourcc/tag    force video tag/fourcc
-qphist             show QP histogram
-force_fps          force the selected framerate, disable the best supported framerate selection
-force_key_frames timestamps  force key frames at specified timestamps
-vbsf video bitstream_filters  deprecated
-vpre preset        set the video options to the indicated preset

Audio options:
-aframes number     set the number of audio frames to record
-aq quality         set audio quality (codec-specific)
-ar rate            set audio sampling rate (in Hz)
-ac channels        set number of audio channels
-an                 disable audio
-acodec codec       force audio codec ('copy' to copy stream)
-vol volume         change audio volume (256=normal)
-rmvol volume       rematrix volume (as factor)

Advanced Audio options:
-atag fourcc/tag    force audio tag/fourcc
-sample_fmt format  set sample format
-absf audio bitstream_filters  deprecated
-apre preset        set the audio options to the indicated preset

Subtitle options:
-sn                 disable subtitle
-scodec codec       force subtitle codec ('copy' to copy stream)
-stag fourcc/tag    force subtitle tag/fourcc
-spre preset        set the subtitle options to the indicated preset

Audio/Video grab options:
-vc channel         deprecated, use -channel
-tvstd standard     deprecated, use -standard
-isync              sync read on input

AVCodecContext AVOptions:
-b                 <int>   E.VA. set bitrate (in bits/s)
-ab                <int>   E..A. set bitrate (in bits/s)
-bt                <int>   E.V.. set video bitrate tolerance (in bits/s)
-flags             <flags> EDVA.
   mv4                     E.V.. use four motion vector by macroblock (mpeg4)
   obmc                    E.V.. use overlapped block motion compensation (h263+)
   qpel                    E.V.. use 1/4 pel motion compensation
   loop                    E.V.. use loop filter
   gmc                     E.V.. use gmc
   mv0                     E.V.. always try a mb with mv=<0,0>
   part                    E.V.. use data partitioning
   gray                    EDV.. only decode/encode grayscale
   psnr                    E.V.. error[?] variables will be set during encoding
   naq                     E.V.. normalize adaptive quantization
   ildct                   E.V.. use interlaced dct
   low_delay               EDV.. force low delay
   alt                     E.V.. enable alternate scantable (mpeg2/mpeg4)
   global_header           E.VA. place global headers in extradata instead of every keyframe
   bitexact                EDVAS use only bitexact stuff (except (i)dct)
   aic                     E.V.. h263 advanced intra coding / mpeg4 ac prediction
   umv                     E.V.. use unlimited motion vectors
   cbp                     E.V.. use rate distortion optimization for cbp
   qprd                    E.V.. use rate distortion optimization for qp selection
   aiv                     E.V.. h263 alternative inter vlc
   slice                   E.V..
   ilme                    E.V.. interlaced motion estimation
   scan_offset             E.V.. will reserve space for svcd scan offset user data
   cgop                    E.V.. closed gop
-me_method         <int>   E.V.. set motion estimation method
   zero                    E.V.. zero motion estimation (fastest)
   full                    E.V.. full motion estimation (slowest)
   epzs                    E.V.. EPZS motion estimation (default)
   esa                     E.V.. esa motion estimation (alias for full)
   tesa                    E.V.. tesa motion estimation
   dia                     E.V.. dia motion estimation (alias for epzs)
   log                     E.V.. log motion estimation
   phods                   E.V.. phods motion estimation
   x1                      E.V.. X1 motion estimation
   hex                     E.V.. hex motion estimation
   umh                     E.V.. umh motion estimation
   iter                    E.V.. iter motion estimation
-g                 <int>   E.V.. set the group of picture size
-ar                <int>   ED.A. set audio sampling rate (in Hz)
-ac                <int>   ED.A. set number of audio channels
-cutoff            <int>   E..A. set cutoff bandwidth
-frame_size        <int>   E..A.
-qcomp             <float> E.V.. video quantizer scale compression (VBR)
-qblur             <float> E.V.. video quantizer scale blur (VBR)
-qmin              <int>   E.V.. min video quantizer scale (VBR)
-qmax              <int>   E.V.. max video quantizer scale (VBR)
-qdiff             <int>   E.V.. max difference between the quantizer scale (VBR)
-bf                <int>   E.V.. use 'frames' B frames
-b_qfactor         <float> E.V.. qp factor between p and b frames
-rc_strategy       <int>   E.V.. ratecontrol method
-b_strategy        <int>   E.V.. strategy to choose between I/P/B-frames
-wpredp            <int>   E.V.. weighted prediction analysis method
-ps                <int>   E.V.. rtp payload size in bytes
-bug               <flags> .DV.. workaround not auto detected encoder bugs
   autodetect              .DV..
   old_msmpeg4             .DV.. some old lavc generated msmpeg4v3 files (no autodetection)
   xvid_ilace              .DV.. Xvid interlacing bug (autodetected if fourcc==XVIX)
   ump4                    .DV.. (autodetected if fourcc==UMP4)
   no_padding              .DV.. padding bug (autodetected)
   amv                     .DV..
   ac_vlc                  .DV.. illegal vlc bug (autodetected per fourcc)
   qpel_chroma             .DV..
   std_qpel                .DV.. old standard qpel (autodetected per fourcc/version)
   qpel_chroma2            .DV..
   direct_blocksize         .DV.. direct-qpel-blocksize bug (autodetected per fourcc/version)
   edge                    .DV.. edge padding bug (autodetected per fourcc/version)
   hpel_chroma             .DV..
   dc_clip                 .DV..
   ms                      .DV.. workaround various bugs in microsofts broken decoders
   trunc                   .DV.. trancated frames
-lelim             <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-celim             <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-strict            <int>   EDVA. how strictly to follow the standards
   very                    EDV.. strictly conform to a older more strict version of the spec or reference software
   strict                  EDV.. strictly conform to all the things in the spec no matter what consequences
   normal                  EDV..
   unofficial              EDV.. allow unofficial extensions
   experimental            EDV.. allow non standardized experimental things
-b_qoffset         <float> E.V.. qp offset between P and B frames
-er                <int>   .DVA. set error detection aggressivity
   careful                 .DV..
   compliant               .DV..
   aggressive              .DV..
   very_aggressive         .DV..
   explode                 .DV.. abort decoding on error recognition
-err_filter        <flags> .DVA. set error detection filter flags
   crccheck                .DV..
   bitstream               .DV..
   buffer                  .DV..
   explode                 .DV.. abort decoding on minor error recognition
-mpeg_quant        <int>   E.V.. use MPEG quantizers instead of H.263
-qsquish           <float> E.V.. how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)
-rc_qmod_amp       <float> E.V.. experimental quantizer modulation
-rc_qmod_freq      <int>   E.V.. experimental quantizer modulation
-rc_eq             <string> E.V.. set rate control equation
-maxrate           <int>   E.V.. set max video bitrate tolerance (in bits/s)
-minrate           <int>   E.V.. set min video bitrate tolerance (in bits/s)
-bufsize           <int>   E.VA. set ratecontrol buffer size (in bits)
-rc_buf_aggressivity <float> E.V.. currently useless
-i_qfactor         <float> E.V.. qp factor between P and I frames
-i_qoffset         <float> E.V.. qp offset between P and I frames
-rc_init_cplx      <float> E.V.. initial complexity for 1-pass encoding
-dct               <int>   E.V.. DCT algorithm
   auto                    E.V.. autoselect a good one (default)
   fastint                 E.V.. fast integer
   int                     E.V.. accurate integer
   mmx                     E.V..
   mlib                    E.V..
   altivec                 E.V..
   faan                    E.V.. floating point AAN DCT
-lumi_mask         <float> E.V.. compresses bright areas stronger than medium ones
-tcplx_mask        <float> E.V.. temporal complexity masking
-scplx_mask        <float> E.V.. spatial complexity masking
-p_mask            <float> E.V.. inter masking
-dark_mask         <float> E.V.. compresses dark areas stronger than medium ones
-idct              <int>   EDV.. select IDCT implementation
   auto                    EDV..
   int                     EDV..
   simple                  EDV..
   simplemmx               EDV..
   libmpeg2mmx             EDV..
   ps2                     EDV..
   mlib                    EDV..
   arm                     EDV..
   altivec                 EDV..
   sh4                     EDV..
   simplearm               EDV..
   simplearmv5te           EDV..
   simplearmv6             EDV..
   simpleneon              EDV..
   simplealpha             EDV..
   h264                    EDV..
   vp3                     EDV..
   ipp                     EDV..
   xvidmmx                 EDV..
   faani                   EDV.. floating point AAN IDCT
-ec                <flags> .DV.. set error concealment strategy
   guess_mvs               .DV.. iterative motion vector (MV) search (slow)
   deblock                 .DV.. use strong deblock filter for damaged MBs
-pred              <int>   E.V.. prediction method
   left                    E.V..
   plane                   E.V..
   median                  E.V..
-aspect            <rational> E.V.. sample aspect ratio
-debug             <flags> EDVAS print specific debug info
   pict                    .DV.. picture info
   rc                      E.V.. rate control
   bitstream               .DV..
   mb_type                 .DV.. macroblock (MB) type
   qp                      .DV.. per-block quantization parameter (QP)
   mv                      .DV.. motion vector
   dct_coeff               .DV..
   skip                    .DV..
   startcode               .DV..
   pts                     .DV..
   er                      .DV.. error recognition
   mmco                    .DV.. memory management control operations (H.264)
   bugs                    .DV..
   vis_qp                  .DV.. visualize quantization parameter (QP), lower QP are tinted greener
   vis_mb_type             .DV.. visualize block types
   buffers                 .DV.. picture buffer allocations
   thread_ops              .DV.. threading operations
-vismv             <int>   .DV.. visualize motion vectors (MVs)
   pf                      .DV.. forward predicted MVs of P-frames
   bf                      .DV.. forward predicted MVs of B-frames
   bb                      .DV.. backward predicted MVs of B-frames
-cmp               <int>   E.V.. full pel me compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-subcmp            <int>   E.V.. sub pel me compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-mbcmp             <int>   E.V.. macroblock compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-ildctcmp          <int>   E.V.. interlaced dct compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-dia_size          <int>   E.V.. diamond type & size for motion estimation
-last_pred         <int>   E.V.. amount of motion predictors from the previous frame
-preme             <int>   E.V.. pre motion estimation
-precmp            <int>   E.V.. pre motion estimation compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-pre_dia_size      <int>   E.V.. diamond type & size for motion estimation pre-pass
-subq              <int>   E.V.. sub pel motion estimation quality
-me_range          <int>   E.V.. limit motion vectors range (1023 for DivX player)
-ibias             <int>   E.V.. intra quant bias
-pbias             <int>   E.V.. inter quant bias
-global_quality    <int>   E.VA.
-coder             <int>   E.V..
   vlc                     E.V.. variable length coder / huffman coder
   ac                      E.V.. arithmetic coder
   raw                     E.V.. raw (no encoding)
   rle                     E.V.. run-length coder
   deflate                 E.V.. deflate-based coder
-context           <int>   E.V.. context model
-mbd               <int>   E.V.. macroblock decision algorithm (high quality mode)
   simple                  E.V.. use mbcmp (default)
   bits                    E.V.. use fewest bits
   rd                      E.V.. use best rate distortion
-sc_threshold      <int>   E.V.. scene change threshold
-lmin              <int>   E.V.. min lagrange factor (VBR)
-lmax              <int>   E.V.. max lagrange factor (VBR)
-nr                <int>   E.V.. noise reduction
-rc_init_occupancy <int>   E.V.. number of bits which should be loaded into the rc buffer before decoding starts
-inter_threshold   <int>   E.V..
-flags2            <flags> EDVA.
   fast                    E.V.. allow non spec compliant speedup tricks
   sgop                    E.V.. strictly enforce gop size
   noout                   E.V.. skip bitstream encoding
   local_header            E.V.. place global headers at every keyframe instead of in extradata
   showall                 .DV.. Show all frames before the first keyframe
   bpyramid                E.V.. allows B-frames to be used as references for predicting
   wpred                   E.V.. weighted biprediction for b-frames (H.264)
   mixed_refs              E.V.. one reference per partition, as opposed to one reference per macroblock
   dct8x8                  E.V.. high profile 8x8 transform (H.264)
   fastpskip               E.V.. fast pskip (H.264)
   aud                     E.V.. access unit delimiters (H.264)
   skiprd                  E.V.. RD optimal MB level residual skipping
   ivlc                    E.V.. intra vlc table
   drop_frame_timecode         E.V..
   non_linear_q            E.V.. use non linear quantizer
   reservoir               E..A. use bit reservoir
   mbtree                  E.V.. use macroblock tree ratecontrol (x264 only)
   psy                     E.V.. use psycho visual optimization
   ssim                    E.V.. ssim will be calculated during encoding
   intra_refresh           E.V.. use periodic insertion of intra blocks instead of keyframes
-error             <int>   E.V..
-antialias         <int>   .DV.. MP3 antialias algorithm
   auto                    .DV..
   fastint                 .DV..
   int                     .DV..
   float                   .DV..
-qns               <int>   E.V.. quantizer noise shaping
-threads           <int>   EDV..
-me_threshold      <int>   E.V.. motion estimaton threshold
-mb_threshold      <int>   E.V.. macroblock threshold
-dc                <int>   E.V.. intra_dc_precision
-nssew             <int>   E.V.. nsse weight
-skip_top          <int>   .DV.. number of macroblock rows at the top which are skipped
-skip_bottom       <int>   .DV.. number of macroblock rows at the bottom which are skipped
-profile           <int>   E.VA.
   unknown                 E.VA.
   aac_main                E..A.
   aac_low                 E..A.
   aac_ssr                 E..A.
   aac_ltp                 E..A.
   dts                     E..A.
   dts_es                  E..A.
   dts_96_24               E..A.
   dts_hd_hra              E..A.
   dts_hd_ma               E..A.
-level             <int>   E.VA.
   unknown                 E.VA.
-lowres            <int>   .DVA. decode at 1= 1/2, 2=1/4, 3=1/8 resolutions
-skip_threshold    <int>   E.V.. frame skip threshold
-skip_factor       <int>   E.V.. frame skip factor
-skip_exp          <int>   E.V.. frame skip exponent
-skipcmp           <int>   E.V.. frame skip compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed differences
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-border_mask       <float> E.V.. increases the quantizer for macroblocks close to borders
-mblmin            <int>   E.V.. min macroblock lagrange factor (VBR)
-mblmax            <int>   E.V.. max macroblock lagrange factor (VBR)
-mepc              <int>   E.V.. motion estimation bitrate penalty compensation (1.0 = 256)
-skip_loop_filter  <int>   .DV..
   none                    .DV..
   default                 .DV..
   noref                   .DV..
   bidir                   .DV..
   nokey                   .DV..
   all                     .DV..
-skip_idct         <int>   .DV..
   none                    .DV..
   default                 .DV..
   noref                   .DV..
   bidir                   .DV..
   nokey                   .DV..
   all                     .DV..
-skip_frame        <int>   .DV..
   none                    .DV..
   default                 .DV..
   noref                   .DV..
   bidir                   .DV..
   nokey                   .DV..
   all                     .DV..
-bidir_refine      <int>   E.V.. refine the two motion vectors used in bidirectional macroblocks
-brd_scale         <int>   E.V.. downscales frames for dynamic B-frame decision
-crf               <float> E.V.. enables constant quality mode, and selects the quality (x264/VP8)
-cqp               <int>   E.V.. constant quantization parameter rate control method
-keyint_min        <int>   E.V.. minimum interval between IDR-frames
-refs              <int>   E.V.. reference frames to consider for motion compensation
-chromaoffset      <int>   E.V.. chroma qp offset from luma
-bframebias        <int>   E.V.. influences how often B-frames are used
-trellis           <int>   E.VA. rate-distortion optimal quantization
-directpred        <int>   E.V.. direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)
-complexityblur    <float> E.V.. reduce fluctuations in qp (before curve compression)
-deblockalpha      <int>   E.V.. in-loop deblocking filter alphac0 parameter
-deblockbeta       <int>   E.V.. in-loop deblocking filter beta parameter
-partitions        <flags> E.V.. macroblock subpartition sizes to consider
   parti4x4                E.V..
   parti8x8                E.V..
   partp4x4                E.V..
   partp8x8                E.V..
   partb8x8                E.V..
-sc_factor         <int>   E.V.. multiplied by qscale for each frame and added to scene_change_score
-mv0_threshold     <int>   E.V..
-b_sensitivity     <int>   E.V.. adjusts sensitivity of b_frame_strategy 1
-compression_level <int>   E.VA.
-min_prediction_order <int>   E..A.
-max_prediction_order <int>   E..A.
-lpc_coeff_precision <int>   E..A. deprecated, use flac-specific options
-prediction_order_method <int>   E..A. deprecated, use flac-specific options
-min_partition_order <int>   E..A. deprecated, use flac-specific options
-max_partition_order <int>   E..A. deprecated, use flac-specific options
-timecode_frame_start <int64> E.V.. GOP timecode frame start number, in non drop frame format
-request_channels  <int>   .D.A. set desired number of audio channels
-drc_scale         <float> .D.A. percentage of dynamic range compression to apply
-channel_layout    <int64> ED.A.
-request_channel_layout <int64> .D.A.
-rc_max_vbv_use    <float> E.V..
-rc_min_vbv_use    <float> E.V..
-ticks_per_frame   <int>   EDVA.
-color_primaries   <int>   EDV..
-color_trc         <int>   EDV..
-colorspace        <int>   EDV..
-color_range       <int>   EDV..
-chroma_sample_location <int>   EDV..
-psy_rd            <float> E.V.. specify psycho visual strength
-psy_trellis       <float> E.V.. specify psycho visual trellis
-aq_mode           <int>   E.V.. specify aq method
-aq_strength       <float> E.V.. specify aq strength
-rc_lookahead      <int>   E.V.. specify number of frames to look ahead for frametype
-crf_max           <float> E.V.. in crf mode, prevents vbv from lowering quality beyond this point
-lpc_type          <int>   E..A. deprecated, use flac-specific options
-lpc_passes        <int>   E..A. deprecated, use flac-specific options
-slices            <int>   E.V.. number of slices, used in parallelized decoding
-thread_type       <flags> EDV.. select multithreading type
   slice                   EDV..
   frame                   EDV..
-audio_service_type <int>   E..A. audio service type
   ma                      E..A. Main Audio Service
   ef                      E..A. Effects
   vi                      E..A. Visually Impaired
   hi                      E..A. Hearing Impaired
   di                      E..A. Dialogue
   co                      E..A. Commentary
   em                      E..A. Emergency
   vo                      E..A. Voice Over
   ka                      E..A. Karaoke
-request_sample_fmt <int>   .D.A. sample format audio decoders should prefer
   u8                      .D.A. 8-bit unsigned integer
   s16                     .D.A. 16-bit signed integer
   s32                     .D.A. 32-bit signed integer
   flt                     .D.A. 32-bit float
   dbl                     .D.A. 64-bit double

dnxhd AVOptions:
-nitris_compat     <int>   E.V.. encode with Avid Nitris compatibility

H.263 encoder AVOptions:
-obmc              <int>   E.V.. use overlapped block motion compensation.
-structured_slices <int>   E.V.. Write slice start position at every GOB header instead of just GOB number.

H.263p encoder AVOptions:
-umv               <int>   E.V.. Use unlimited motion vectors.
-aiv               <int>   E.V.. Use alternative inter VLC.
-obmc              <int>   E.V.. use overlapped block motion compensation.
-structured_slices <int>   E.V.. Write slice start position at every GOB header instead of just GOB number.

H264 Decoder AVOptions:

MJPEG decoder AVOptions:
-extern_huff       <int>   .DV.. Use external huffman table.

mpeg1video encoder AVOptions:
-timecode          <string> E.V.. set timecode value following hh:mm:ss[:;.]ff format, use ';' or '.' before frame number for drop frame
-intra_vlc         <int>   E.V.. Use MPEG-2 intra VLC table.
-drop_frame_timecode <int>   E.V.. Timecode is in drop frame format.
-scan_offset       <int>   E.V.. Reserve space for SVCD scan offset user data.

mpeg2video encoder AVOptions:
-timecode          <string> E.V.. set timecode value following hh:mm:ss[:;.]ff format, use ';' or '.' before frame number for drop frame
-intra_vlc         <int>   E.V.. Use MPEG-2 intra VLC table.
-drop_frame_timecode <int>   E.V.. Timecode is in drop frame format.
-scan_offset       <int>   E.V.. Reserve space for SVCD scan offset user data.
-non_linear_quant  <int>   E.V.. Use nonlinear quantizer.
-alternate_scan    <int>   E.V.. Enable alternate scantable.

MPEG4 encoder AVOptions:
-data_partitioning <int>   E.V.. Use data partitioning.
-alternate_scan    <int>   E.V.. Enable alternate scantable.

MPEG4 Video Decoder AVOptions:

rawdec AVOptions:
-top               <int>   .DV.. top field first

snow encoder AVOptions:
-memc_only         <int>   E.V.. Only do ME/MC (I frames -> ref, P frame -> ME+MC).

TIFF encoder AVOptions:
-dpi               <int>   E.V.. set the image resolution (in dpi)
-compression_algo  <int>   E.V..
   packbits                E.V..
   raw                     E.V..
   lzw                     E.V..
   deflate                 E.V..

V210 Decoder AVOptions:
-custom_stride     <int>   E.V.. Custom V210 stride

AAC encoder AVOptions:
-stereo_mode       <int>   E..A. Stereo coding method
   auto                    E..A. Selected by the Encoder
   ms_off                  E..A. Disable Mid/Side coding
   ms_force                E..A. Force Mid/Side for the whole frame if possible

AC-3 Encoder AVOptions:
-per_frame_metadata <int>   E..A. Allow Changing Metadata Per-Frame
-center_mixlev     <float> E..A. Center Mix Level
-surround_mixlev   <float> E..A. Surround Mix Level
-mixing_level      <int>   E..A. Mixing Level
-room_type         <int>   E..A. Room Type
   notindicated            E..A. Not Indicated (default)
   large                   E..A. Large Room
   small                   E..A. Small Room
-copyright         <int>   E..A. Copyright Bit
-dialnorm          <int>   E..A. Dialogue Level (dB)
-dsur_mode         <int>   E..A. Dolby Surround Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround Encoded
   off                     E..A. Not Dolby Surround Encoded
-original          <int>   E..A. Original Bit Stream
-dmix_mode         <int>   E..A. Preferred Stereo Downmix Mode
   notindicated            E..A. Not Indicated (default)
   ltrt                    E..A. Lt/Rt Downmix Preferred
   loro                    E..A. Lo/Ro Downmix Preferred
-ltrt_cmixlev      <float> E..A. Lt/Rt Center Mix Level
-ltrt_surmixlev    <float> E..A. Lt/Rt Surround Mix Level
-loro_cmixlev      <float> E..A. Lo/Ro Center Mix Level
-loro_surmixlev    <float> E..A. Lo/Ro Surround Mix Level
-dsurex_mode       <int>   E..A. Dolby Surround EX Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround EX Encoded
   off                     E..A. Not Dolby Surround EX Encoded
-dheadphone_mode   <int>   E..A. Dolby Headphone Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Headphone Encoded
   off                     E..A. Not Dolby Headphone Encoded
-ad_conv_type      <int>   E..A. A/D Converter Type
   standard                E..A. Standard (default)
   hdcd                    E..A. HDCD
-stereo_rematrixing <int>   E..A. Stereo Rematrixing
-channel_coupling  <int>   E..A. Channel Coupling
   auto                    E..A. Selected by the Encoder
-cpl_start_band    <int>   E..A. Coupling Start Band
   auto                    E..A. Selected by the Encoder

AC3 decoder AVOptions:
-drc_scale         <float> .D.A. percentage of dynamic range compression to apply

Fixed-Point AC-3 Encoder AVOptions:
-per_frame_metadata <int>   E..A. Allow Changing Metadata Per-Frame
-center_mixlev     <float> E..A. Center Mix Level
-surround_mixlev   <float> E..A. Surround Mix Level
-mixing_level      <int>   E..A. Mixing Level
-room_type         <int>   E..A. Room Type
   notindicated            E..A. Not Indicated (default)
   large                   E..A. Large Room
   small                   E..A. Small Room
-copyright         <int>   E..A. Copyright Bit
-dialnorm          <int>   E..A. Dialogue Level (dB)
-dsur_mode         <int>   E..A. Dolby Surround Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround Encoded
   off                     E..A. Not Dolby Surround Encoded
-original          <int>   E..A. Original Bit Stream
-dmix_mode         <int>   E..A. Preferred Stereo Downmix Mode
   notindicated            E..A. Not Indicated (default)
   ltrt                    E..A. Lt/Rt Downmix Preferred
   loro                    E..A. Lo/Ro Downmix Preferred
-ltrt_cmixlev      <float> E..A. Lt/Rt Center Mix Level
-ltrt_surmixlev    <float> E..A. Lt/Rt Surround Mix Level
-loro_cmixlev      <float> E..A. Lo/Ro Center Mix Level
-loro_surmixlev    <float> E..A. Lo/Ro Surround Mix Level
-dsurex_mode       <int>   E..A. Dolby Surround EX Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround EX Encoded
   off                     E..A. Not Dolby Surround EX Encoded
-dheadphone_mode   <int>   E..A. Dolby Headphone Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Headphone Encoded
   off                     E..A. Not Dolby Headphone Encoded
-ad_conv_type      <int>   E..A. A/D Converter Type
   standard                E..A. Standard (default)
   hdcd                    E..A. HDCD
-stereo_rematrixing <int>   E..A. Stereo Rematrixing
-channel_coupling  <int>   E..A. Channel Coupling
   auto                    E..A. Selected by the Encoder
-cpl_start_band    <int>   E..A. Coupling Start Band
   auto                    E..A. Selected by the Encoder

E-AC-3 Encoder AVOptions:
-per_frame_metadata <int>   E..A. Allow Changing Metadata Per-Frame
-mixing_level      <int>   E..A. Mixing Level
-room_type         <int>   E..A. Room Type
   notindicated            E..A. Not Indicated (default)
   large                   E..A. Large Room
   small                   E..A. Small Room
-copyright         <int>   E..A. Copyright Bit
-dialnorm          <int>   E..A. Dialogue Level (dB)
-dsur_mode         <int>   E..A. Dolby Surround Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround Encoded
   off                     E..A. Not Dolby Surround Encoded
-original          <int>   E..A. Original Bit Stream
-dmix_mode         <int>   E..A. Preferred Stereo Downmix Mode
   notindicated            E..A. Not Indicated (default)
   ltrt                    E..A. Lt/Rt Downmix Preferred
   loro                    E..A. Lo/Ro Downmix Preferred
-ltrt_cmixlev      <float> E..A. Lt/Rt Center Mix Level
-ltrt_surmixlev    <float> E..A. Lt/Rt Surround Mix Level
-loro_cmixlev      <float> E..A. Lo/Ro Center Mix Level
-loro_surmixlev    <float> E..A. Lo/Ro Surround Mix Level
-dsurex_mode       <int>   E..A. Dolby Surround EX Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Surround EX Encoded
   off                     E..A. Not Dolby Surround EX Encoded
-dheadphone_mode   <int>   E..A. Dolby Headphone Mode
   notindicated            E..A. Not Indicated (default)
   on                      E..A. Dolby Headphone Encoded
   off                     E..A. Not Dolby Headphone Encoded
-ad_conv_type      <int>   E..A. A/D Converter Type
   standard                E..A. Standard (default)
   hdcd                    E..A. HDCD
-stereo_rematrixing <int>   E..A. Stereo Rematrixing
-channel_coupling  <int>   E..A. Channel Coupling
   auto                    E..A. Selected by the Encoder
-cpl_start_band    <int>   E..A. Coupling Start Band
   auto                    E..A. Selected by the Encoder

E-AC3 decoder AVOptions:
-drc_scale         <float> .D.A. percentage of dynamic range compression to apply

FLAC encoder AVOptions:
-lpc_coeff_precision <int>   E..A. LPC coefficient precision
-lpc_type          <int>   E..A. LPC algorithm
   none                    E..A.
   fixed                   E..A.
   levinson                E..A.
   cholesky                E..A.
-lpc_passes        <int>   E..A. Number of passes to use for Cholesky factorization during LPC analysis
-min_partition_order <int>   E..A.
-max_partition_order <int>   E..A.
-prediction_order_method <int>   E..A. Search method for selecting prediction order
   estimation              E..A.
   2level                  E..A.
   4level                  E..A.
   8level                  E..A.
   search                  E..A.
   log                     E..A.

g726 AVOptions:
-code_size         <int>   E..A. Bits per code

libmp3lame encoder AVOptions:
-reservoir         <int>   E..A. Use bit reservoir.

libopencore_amrnb AVOptions:
-dtx               <int>   E..A. Allow DTX (generate comfort noise)

libspeex AVOptions:
-abr               <int>   E..A. Use average bit rate
-cbr_quality       <int>   E..A. Set quality value (0 to 10) for CBR
-frames_per_packet <int>   E..A. Number of frames to encode in each packet

libvo_amrwbenc AVOptions:
-dtx               <int>   E..A. Allow DTX (generate comfort noise)

libvorbis AVOptions:
-iblock            <double> E..A. Sets the impulse block bias

libvpx encoder AVOptions:
-cpu-used          <int>   E.V.. Quality/Speed ratio modifier
-auto-alt-ref      <int>   E.V.. Enable use of alternate reference frames (2-pass only)
-lag-in-frames     <int>   E.V.. Number of frames to look ahead for alternate reference frame selection
-arnr-maxframes    <int>   E.V.. altref noise reduction max frame count
-arnr-strength     <int>   E.V.. altref noise reduction filter strength
-arnr-type         <int>   E.V.. altref noise reduction filter type
   backward                E.V..
   forward                 E.V..
   centered                E.V..
-deadline          <int>   E.V.. Time to spend encoding, in microseconds.
   best                    E.V..
   good                    E.V..
   realtime                E.V..
   best                    E.V..
   good                    E.V..
   realtime                E.V..
-error-resilient   <flags> E.V.. Error resilience configuration
   default                 E.V.. Improve resiliency against losses of whole frames
   partitions              E.V.. The frame partitions are independently decodable by the bool decoder, meaning that partitions can be decoded even though earlier partitions have been lost. Note that intra predicition is still done over the partition boundary.
-speed             <int>   E.V.. 
-quality           <int>   E.V.. 
   best                    E.V..
   good                    E.V..
   realtime                E.V..
   best                    E.V..
   good                    E.V..
   realtime                E.V..
-arnr_max_frames   <int>   E.V.. altref noise reduction max frame count
-arnr_strength     <int>   E.V.. altref noise reduction filter strength
-arnr_type         <int>   E.V.. altref noise reduction filter type
-rc_lookahead      <int>   E.V.. Number of frames to look ahead for alternate reference frame selection
-crf               <int>   E.V.. Select the quality for constant quality mode

libx264 AVOptions:
-preset            <string> E.V.. Set the encoding preset (cf. x264 --fullhelp)
-tune              <string> E.V.. Tune the encoding params (cf. x264 --fullhelp)
-profile           <string> E.V.. Set profile restrictions (cf. x264 --fullhelp) 
-fastfirstpass     <int>   E.V.. Use fast settings when encoding first pass
-level             <string> E.V.. Specify level (as defined by Annex A)
-passlogfile       <string> E.V.. Filename for 2 pass stats
-wpredp            <string> E.V.. Weighted prediction for P-frames
-x264opts          <string> E.V.. x264 options
-crf               <float> E.V.. Select the quality for constant quality mode
-crf_max           <float> E.V.. In CRF mode, prevents VBV from lowering quality beyond this point.
-qp                <int>   E.V.. Constant quantization parameter rate control method
-aq-mode           <int>   E.V.. AQ method
   none                    E.V..
   variance                E.V.. Variance AQ (complexity mask)
   autovariance            E.V.. Auto-variance AQ (experimental)
-aq-strength       <float> E.V.. AQ strength. Reduces blocking and blurring in flat and textured areas.
-psy               <int>   E.V.. Use psychovisual optimizations.
-psy-rd            <string> E.V.. Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.
-rc-lookahead      <int>   E.V.. Number of frames to look ahead for frametype and ratecontrol
-weightb           <int>   E.V.. Weighted prediction for B-frames.
-weightp           <int>   E.V.. Weighted prediction analysis method.
   none                    E.V..
   simple                  E.V..
   smart                   E.V..
-ssim              <int>   E.V.. Calculate and print SSIM stats.
-intra-refresh     <int>   E.V.. Use Periodic Intra Refresh instead of IDR frames.
-b-bias            <int>   E.V.. Influences how often B-frames are used
-b-pyramid         <int>   E.V.. Keep some B-frames as references.
   none                    E.V..
   strict                  E.V.. Strictly hierarchical pyramid
   normal                  E.V.. Non-strict (not Blu-ray compatible)
-mixed-refs        <int>   E.V.. One reference per partition, as opposed to one reference per macroblock
-8x8dct            <int>   E.V.. High profile 8x8 transform.
-fast-pskip        <int>   E.V..
-aud               <int>   E.V.. Use access unit delimiters.
-mbtree            <int>   E.V.. Use macroblock tree ratecontrol.
-deblock           <string> E.V.. Loop filter parameters, in <alpha:beta> form.
-cplxblur          <float> E.V.. Reduce fluctuations in QP (before curve compression)
-partitions        <string> E.V.. A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all
-direct-pred       <int>   E.V.. Direct MV prediction mode
   none                    E.V..
   spatial                 E.V..
   temporal                E.V..
   auto                    E.V..
-slice-max-size    <int>   E.V.. Constant quantization parameter rate control method

AVFormatContext AVOptions:
-probesize         <int>   .D... set probing size
-muxrate           <int>   E.... set mux rate
-packetsize        <int>   E.... set packet size
-fflags            <flags> ED...
   ignidx                  .D... ignore index
   genpts                  .D... generate pts
   nofillin                .D... do not fill in missing values that can be exactly calculated
   noparse                 .D... disable AVParsers, this needs nofillin too
   igndts                  .D... ignore dts
   rtphint                 E.... add rtp hinting (deprecated, use the -movflags rtphint option instead)
   discardcorrupt          .D... discard corrupted frames
   sortdts                 .D... try to interleave outputted packets by dts
   keepside                .D... dont merge side data
   latm                    E.... enable RTP MP4A-LATM payload
-analyzeduration   <int>   .D... how many microseconds are analyzed to estimate duration
-cryptokey         <binary> .D... decryption key
-indexmem          <int>   .D... max memory used for timestamp index (per stream)
-rtbufsize         <int>   .D... max memory used for buffering real-time frames
-fdebug            <flags> ED... print specific debug info
   ts                      ED...
-max_delay         <int>   ED... maximum muxing or demuxing delay in microseconds
-fer               <int>   .D... set error detection aggressivity
   careful                 .D...
   explode                 .D... abort decoding on error recognition
-fpsprobesize      <int>   .D... number of frames used to probe fps

lavfi indev AVOptions:
-graph             <string> .D... Libavfilter graph

VFW indev AVOptions:
-video_size        <string> .D... A string describing frame size, such as 640x480 or hd720.
-framerate         <string> .D... 

AVI demuxer AVOptions:
-use_odml          <int>   .D... use odml index

cavsvideo demuxer AVOptions:
-framerate         <string> .D... 

dirac demuxer AVOptions:
-framerate         <string> .D... 

dnxhd demuxer AVOptions:
-framerate         <string> .D... 

g729 demuxer AVOptions:
-bit_rate          <int>   .D... 

gsm demuxer AVOptions:
-sample_rate       <int>   .D... 

h261 demuxer AVOptions:
-framerate         <string> .D... 

h263 demuxer AVOptions:
-framerate         <string> .D... 

h264 demuxer AVOptions:
-framerate         <string> .D... 

image2 demuxer AVOptions:
-pixel_format      <string> .D... 
-video_size        <string> .D... 
-framerate         <string> .D... 
-loop              <int>   .D... 

image2pipe demuxer AVOptions:
-pixel_format      <string> .D... 
-video_size        <string> .D... 
-framerate         <string> .D... 
-loop              <int>   .D... 

ingenient demuxer AVOptions:
-framerate         <string> .D... 

m4v demuxer AVOptions:
-framerate         <string> .D... 

mjpeg demuxer AVOptions:
-framerate         <string> .D... 

mpegtsraw demuxer AVOptions:
-compute_pcr       <int>   .D... Compute exact PCR for each transport stream packet.

mpegvideo demuxer AVOptions:
-framerate         <string> .D... 

alaw demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

mulaw demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

f64be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

f64le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

f32be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

f32le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s32be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s32le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s24be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s24le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s16be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s16le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

s8 demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u32be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u32le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u24be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u24le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u16be demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u16le demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

u8 demuxer AVOptions:
-sample_rate       <int>   .D... 
-channels          <int>   .D... 

rawvideo demuxer AVOptions:
-video_size        <string> .D... A string describing frame size, such as 640x480 or hd720.
-pixel_format      <string> .D... 
-framerate         <string> .D... 

RTP demuxer AVOptions:
-rtp_flags         <flags> .D... RTP flags
   filter_src              .D... Only receive packets from the negotiated peer IP

RTSP demuxer AVOptions:
-initial_pause     <int>   .D... Don't start playing the stream immediately
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC
-rtsp_transport    <flags> ED... RTSP transport protocols
   udp                     ED... UDP
   tcp                     ED... TCP
   udp_multicast           .D... UDP multicast
   http                    .D... HTTP tunneling
-rtsp_flags        <flags> .D... RTSP flags
   filter_src              .D... Only receive packets from the negotiated peer IP
-allowed_media_types <flags> .D... Media types to accept from the server
   video                   .D... Video
   audio                   .D... Audio
   data                    .D... Data

SDP demuxer AVOptions:
-sdp_flags         <flags> .D... SDP flags
   filter_src              .D... Only receive packets from the negotiated peer IP
-allowed_media_types <flags> .D... Media types to accept from the server
   video                   .D... Video
   audio                   .D... Audio
   data                    .D... Data

TTY demuxer AVOptions:
-chars_per_frame   <int>   .D... 
-video_size        <string> .D... A string describing frame size, such as 640x480 or hd720.
-framerate         <string> .D... 

vc1 demuxer AVOptions:
-framerate         <string> .D... 

ModPlug demuxer AVOptions:
-noise_reduction   <int>   .D... Enable noise reduction 0(off)-1(on)
-reverb_depth      <int>   .D... Reverb level 0(quiet)-100(loud)
-reverb_delay      <int>   .D... Reverb delay in ms, usually 40-200ms
-bass_amount       <int>   .D... XBass level 0(quiet)-100(loud)
-bass_range        <int>   .D... XBass cutoff in Hz 10-100
-surround_depth    <int>   .D... Surround level 0(quiet)-100(heavy)
-surround_delay    <int>   .D... Surround delay in ms, usually 5-40ms
-max_size          <int>   .D... Max file size supported (in bytes). Default is 5MB. Set to 0 for no limit (not recommended)
-video_stream_expr <string> .D... Color formula
-video_stream      <int>   .D... Make demuxer output a video stream
-video_stream_w    <int>   .D... Video stream width in char (one char = 8x8px)
-video_stream_h    <int>   .D... Video stream height in char (one char = 8x8px)
-video_stream_ptxt <int>   .D... Print speed, tempo, order, ... in video stream

dv AVOptions:
-timecode          <string> E.... set timecode value following hh:mm:ss[:;.]ff format, use ';' or '.' before frame number for drop frame

GIF muxer AVOptions:
-loop              <int>   E.... Number of times to loop the output.

ipod muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

LATM/LOAS muxer AVOptions:
-smc-interval      <int>   E.... StreamMuxConfig interval.

mov muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

MP3 muxer AVOptions:
-id3v2_version     <int>   E.... Select ID3v2 version to write. Currently 3 and 4 are supported.
-write_id3v1       <int>   E.... Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software.

mp4 muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

mpeg muxer AVOptions:
-muxrate           <int>   E....
-preload           <int>   E.... Initial demux-decode delay in microseconds.

vcd muxer AVOptions:
-muxrate           <int>   E....
-preload           <int>   E.... Initial demux-decode delay in microseconds.

dvd muxer AVOptions:
-muxrate           <int>   E....
-preload           <int>   E.... Initial demux-decode delay in microseconds.

svcd muxer AVOptions:
-muxrate           <int>   E....
-preload           <int>   E.... Initial demux-decode delay in microseconds.

vob muxer AVOptions:
-muxrate           <int>   E....
-preload           <int>   E.... Initial demux-decode delay in microseconds.

MPEGTS muxer AVOptions:
-mpegts_transport_stream_id <int>   E.... Set transport_stream_id field.
-mpegts_original_network_id <int>   E.... Set original_network_id field.
-mpegts_service_id <int>   E.... Set service_id field.
-mpegts_pmt_start_pid <int>   E.... Set the first pid of the PMT.
-mpegts_start_pid  <int>   E.... Set the first pid.
-mpegts_m2ts_mode  <int>   E.... Enable m2ts mode.
-muxrate           <int>   E....

mxf AVOptions:
-timecode          <string> E.... set timecode value following hh:mm:ss[:;.]ff format, use ';' or '.' before frame number for drop frame

mxf_d10 AVOptions:
-timecode          <string> E.... set timecode value following hh:mm:ss[:;.]ff format, use ';' or '.' before frame number for drop frame

Ogg muxer AVOptions:
-oggpagesize       <int>   E.... Set preferred Ogg page size.

psp muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

RTP muxer AVOptions:
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC
-payload_type      <int>   E.... Specify RTP payload type

RTSP muxer AVOptions:
-initial_pause     <int>   .D... Don't start playing the stream immediately
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC
-rtsp_transport    <flags> ED... RTSP transport protocols
   udp                     ED... UDP
   tcp                     ED... TCP
   udp_multicast           .D... UDP multicast
   http                    .D... HTTP tunneling
-rtsp_flags        <flags> .D... RTSP flags
   filter_src              .D... Only receive packets from the negotiated peer IP
-allowed_media_types <flags> .D... Media types to accept from the server
   video                   .D... Video
   audio                   .D... Audio
   data                    .D... Data

segment muxer AVOptions:
-container_format  <string> E.... container format used for the segments
-segment_time      <float> E.... segment lenght in seconds
-segment_pattern   <string> E.... pattern to use in segment files
-segment_basename  <string> E.... basename to use in segment files

spdif AVOptions:
-spdif_flags       <flags> E.... IEC 61937 encapsulation flags
   be                      E.... output in big-endian format (for use as s16be)
-dtshd_rate        <int>   E.... mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled)
-dtshd_fallback_time <int>   E.... min secs to strip HD for after an overflow (-1: till the end, default 60)

tg2 muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

tgp muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
-moov_size         <int>   E.... maximum moov size so it can be placed at the begin
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC

WAV muxer AVOptions:
-write_bext        <int>   E.... Write BEXT chunk.

SWScaler AVOptions:
-sws_flags         <flags> E.V.. scaler/cpu flags
   fast_bilinear           E.V.. fast bilinear
   bilinear                E.V.. bilinear
   bicubic                 E.V.. bicubic
   experimental            E.V.. experimental
   neighbor                E.V.. nearest neighbor
   area                    E.V.. averaging area
   bicublin                E.V.. luma bicubic, chroma bilinear
   gauss                   E.V.. gaussian
   sinc                    E.V.. sinc
   lanczos                 E.V.. lanczos
   spline                  E.V.. natural bicubic spline
   print_info              E.V.. print info
   accurate_rnd            E.V.. accurate rounding
   full_chroma_int         E.V.. full chroma interpolation
   full_chroma_inp         E.V.. full chroma input
   bitexact                E.V.. 
-srcw              <int>   E.V.. source width
-srch              <int>   E.V.. source height
-dstw              <int>   E.V.. destination width
-dsth              <int>   E.V.. destination height
-src_format        <int>   E.V.. source format
-dst_format        <int>   E.V.. destination format
-src_range         <int>   E.V.. source range
-dst_range         <int>   E.V.. destination range
-param0            <double> E.V.. scaler param 0
-param1            <double> E.V.. scaler param 1

