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
-report             generate a report
-max_alloc bytes    set maximum size of a single allocated block
-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
-map_metadata outfile[,metadata]:infile[,metadata]  set metadata information of outfile from infile
-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:
-cpuflags flags     force specific cpu flags
-map [-]input_file_id[:stream_specifier][,sync_file_id[:stream_s  set input stream mapping
-map_channel file.stream.channel[:syncfile.syncstream]  map an audio channel from one stream to another
-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
-vsync              video sync method
-async              audio sync method
-adrift_threshold threshold  audio drift threshold
-copyts             copy timestamps
-copytb source      copy input stream time base when stream copying
-shortest           finish encoding within shortest input
-dts_delta_threshold threshold  timestamp discontinuity delta threshold
-dts_error_threshold threshold  timestamp error delta threshold
-copyinkf           copy initial non-keyframes
-q q                use fixed quality scale (VBR)
-qscale q           use fixed quality scale (VBR)
-debug_ts           print timestamp debugging info
-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
-vf filter list     video filters
-b bitrate          video bitrate (please use -b:v)
-dn                 disable data

Advanced Video options:
-pix_fmt format     set pixel format
-intra              deprecated use -g 1
-vdt n              discard threshold
-rc_override override  rate control override for specific intervals
-deinterlace        this option is deprecated, use the yadif filter instead
-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). In 1-pass mode, bitrate tolerance specifies how far ratecontrol is willing to deviate from the target average bitrate value. This is not related to min/max bitrate. Lowering tolerance too much has an adverse effect on quality.
-flags             <flags> EDVA.
   mv4                     E.V.. use four motion vector by macroblock (mpeg4)
   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>
   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
   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
   cbp                     E.V.. Deprecated, use mpegvideo private options instead
   qprd                    E.V.. Deprecated, use mpegvideo private options instead
   ilme                    E.V.. interlaced motion estimation
   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). Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0
-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
-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
-err_detect        <flags> .DVA. set error detection flags
   crccheck                .DVA. verify embedded CRCs
   bitstream               .DVA. detect bitstream specification deviations
   buffer                  .DVA. detect improper bitstream length
   explode                 .DVA. abort decoding on minor error detection
   careful                 .DVA. consider things that violate the spec and have not been seen in the wild as errors
   compliant               .DVA. consider all spec non compliancies as errors
   aggressive              .DVA. consider things that a sane encoder shouldnt do as an error
-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. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
-maxrate           <int>   E.VA. Set max bitrate tolerance (in bits/s). Requires bufsize to be set.
-minrate           <int>   E.VA. Set min bitrate tolerance (in bits/s). Most useful in setting up a CBR encode. It is of little use elsewise.
-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..
   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..
   mmi                     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.. Deprecated, use mpegvideo private options instead
   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
   skiprd                  E.V.. Deprecated, use mpegvideo private options instead
-error             <int>   E.V..
-qns               <int>   E.V.. deprecated, use mpegvideo private options instead
-threads           <int>   EDV..
   auto                    EDV.. detect a good number of threads
-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
-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
-trellis           <int>   E.VA. rate-distortion optimal quantization
-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.
-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
-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..
-slices            <int>   E.V.. number of slices, used in parallelized encoding
-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

cljr encoder AVOptions:
-dither_type       <int>   E.V.. Dither type

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

flv encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

h261 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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.
-mb_info           <int>   E.V.. emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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.
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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.
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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.
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

MPEG4 encoder AVOptions:
-data_partitioning <int>   E.V.. Use data partitioning.
-alternate_scan    <int>   E.V.. Enable alternate scantable.
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

MPEG4 Video Decoder AVOptions:

msmpeg4v2 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

msmpeg4v3 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

ProRes encoder AVOptions:
-mbs_per_slice     <int>   E.V.. macroblocks per slice
-profile           <int>   E.V..
   proxy                   E.V..
   lt                      E.V..
   standard                E.V..
   hq                      E.V..
-vendor            <string> E.V.. vendor ID
-bits_per_mb       <int>   E.V.. desired bits per macroblock
-quant_mat         <int>   E.V.. quantiser matrix
   auto                    E.V..
   proxy                   E.V..
   lt                      E.V..
   standard                E.V..
   hq                      E.V..
   default                 E.V..

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

rv10 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

rv20 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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

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>   .DV.. Custom V210 stride

wmv1 encoder AVOptions:
-mpv_flags         <flags> E.V.. Flags common for all mpegvideo-based encoders.
   skip_rd                 E.V.. RD optimal MB level residual skipping
   strict_gop              E.V.. Strictly enforce gop size
   qp_rd                   E.V.. Use rate distortion optimization for qp selection
   cbp_rd                  E.V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>   E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient)
-chroma_elim_threshold <int>   E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)
-quantizer_noise_shaping <int>   E.V..

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
-aac_coder         <int>   E..A. 

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

APE decoder AVOptions:
-max_samples       <int>   .D.A. maximum number of samples decoded per call
   all                     .D.A. no maximum. decode all samples for each packet at once

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.

g722 decoder AVOptions:
-bits_per_codeword <flags> .D.A. Bits per G722 codeword

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

PGS subtitle decoder AVOptions:
-forced_subs_only  <int>   .D..S Only show forced subtitles

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..
-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..
-vp8flags          <flags> E.V.. 
   error_resilient         E.V.. enable error resilience
   altref                  E.V.. enable use of alternate reference frames (VP8/2-pass only)
-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.. Limit the size of each slice in bytes
-stats             <string> E.V.. Filename for 2 pass stats

libx264rgb 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.. Limit the size of each slice in bytes
-stats             <string> E.V.. Filename for 2 pass stats

libxavs AVOptions:
-crf               <float> E.V.. Select the quality for constant quality mode
-qp                <int>   E.V.. Constant quantization parameter rate control method
-b-bias            <int>   E.V.. Influences how often B-frames are used
-cplxblur          <float> E.V.. Reduce fluctuations in QP (before curve compression)
-direct-pred       <int>   E.V.. Direct MV prediction mode
   none                    E.V..
   spatial                 E.V..
   temporal                E.V..
   auto                    E.V..
-aud               <int>   E.V.. Use access unit delimiters.
-mbtree            <int>   E.V.. Use macroblock tree ratecontrol.
-mixed-refs        <int>   E.V.. One reference per partition, as opposed to one reference per macroblock
-fast-pskip        <int>   E.V..

AVFormatContext AVOptions:
-probesize         <int>   .D... set probing size
-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
   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
-fpsprobesize      <int>   .D... number of frames used to probe fps
-audio_preload     <int>   E.... microseconds by which audio packets should be interleaved earlier
-chunk_duration    <int>   E.... microseconds for each chunk
-chunk_size        <int>   E.... size in bytes for each chunk
-f_err_detect      <flags> .D... set error detection flags (deprecated; use err_detect, save via avconv)
   crccheck                .D... verify embedded CRCs
   bitstream               .D... detect bitstream specification deviations
   buffer                  .D... detect improper bitstream length
   explode                 .D... abort decoding on minor error detection
   careful                 .D... consider things that violate the spec and have not been seen in the wild as errors
   compliant               .D... consider all spec non compliancies as errors
   aggressive              .D... consider things that a sane encoder shouldnt do as an error
-err_detect        <flags> .D... set error detection flags
   crccheck                .D... verify embedded CRCs
   bitstream               .D... detect bitstream specification deviations
   buffer                  .D... detect improper bitstream length
   explode                 .D... abort decoding on minor error detection
   careful                 .D... consider things that violate the spec and have not been seen in the wild as errors
   compliant               .D... consider all spec non compliancies as errors
   aggressive              .D... consider things that a sane encoder shouldnt do as an error

AVIOContext AVOptions:

URLContext AVOptions:

crypto AVOptions:
-key               <binary> .D... AES decryption key
-iv                <binary> .D... AES decryption initialization vector

http AVOptions:
-chunked_post      <int>   E.... use chunked transfer-encoding for posts
-headers           <string> ED... custom HTTP headers, can override built in default headers
-user-agent        <string> .D... override User-Agent header

DirectShow indev AVOptions:
-video_size        <string> .D... set video size given a string such as 640x480 or hd720.
-framerate         <string> .D... set video frame rate
-sample_rate       <int>   .D... set audio sample rate
-sample_size       <int>   .D... set audio sample size
-channels          <int>   .D... set number of audio channels, such as 1 or 2
-list_devices      <int>   .D... list available devices
   true                    .D... 
   false                   .D... 
-list_options      <int>   .D... list available options for specified device
   true                    .D... 
   false                   .D... 
-video_device_number <int>   .D... set video device number for devices with same name (starts at 0)
-audio_device_number <int>   .D... set audio device number for devices with same name (starts at 0)

lavfi indev AVOptions:
-graph             <string> .D... Libavfilter graph
-dumpgraph         <string> .D... Dump graph to stderr

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

Artworx Data Format demuxer AVOptions:
-linespeed         <int>   .D... set simulated line speed (bytes per second)
-video_size        <string> .D... set video size, such as 640x480 or hd720.
-framerate         <string> .D... set framerate (frames per second)

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

Binary text demuxer AVOptions:
-linespeed         <int>   .D... set simulated line speed (bytes per second)
-video_size        <string> .D... set video size, such as 640x480 or hd720.
-framerate         <string> .D... set framerate (frames per second)

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

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

iCE Draw File demuxer AVOptions:
-linespeed         <int>   .D... set simulated line speed (bytes per second)
-video_size        <string> .D... set video size, such as 640x480 or hd720.
-framerate         <string> .D... set framerate (frames per second)

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... 

mov,mp4,m4a,3gp,3g2,mj2 AVOptions:
-use_absolute_path <int>   .DV.. allow using absolute path when opening alias, this is a possible security issue

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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-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
-min_port          <int>   ED... Minimum local UDP port
-max_port          <int>   ED... Maximum local UDP port

sbg_demuxer AVOptions:
-sample_rate       <int>   .D... 
-frame_size        <int>   .D... 
-max_file_size     <int>   .D... 

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... 

WAV demuxer AVOptions:
-ignore_length     <int>   .D... Ignore length

eXtended BINary text (XBIN) demuxer AVOptions:
-linespeed         <int>   .D... set simulated line speed (bytes per second)
-video_size        <string> .D... set video size, such as 640x480 or hd720.
-framerate         <string> .D... set framerate (frames per second)

sdl outdev AVOptions:
-window_title      <string> E.... SDL window title
-icon_title        <string> E.... SDL iconified window title
-window_size       <string> E.... SDL window forced size

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.

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

image2 muxer AVOptions:
-updatefirst       <int>   E.... 

ipod muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

ismv muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

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
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

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
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

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....
-pes_payload_size  <int>   E.... Minimum PES packet payload in bytes
-resend_headers    <int>   E.... Reemit PAT/PMT before writing the next packet

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
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

RTP muxer AVOptions:
-rtpflags          <flags> E.... RTP muxer flags
   latm                    E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-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
-min_port          <int>   ED... Minimum local UDP port
-max_port          <int>   ED... Maximum local UDP port

segment muxer AVOptions:
-segment_format    <string> E.... container format used for the segments
-segment_time      <float> E.... segment length in seconds
-segment_list      <string> E.... output the segment list
-segment_list_size <int>   E.... maximum number of playlist entries
-segment_wrap      <int>   E.... number after which the index wraps

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
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

tgp muxer AVOptions:
-movflags          <flags> E.... MOV muxer flags
   rtphint                 E.... Add RTP hint tracks
   empty_moov              E.... Make the initial moov atom empty (not supported by QuickTime)
   frag_keyframe           E.... Fragment at video keyframes
   separate_moof           E.... Write separate moof/mdat atoms for each track
   frag_custom             E.... Flush fragments on caller requests
   isml                    E.... Create a live smooth streaming feed (for pushing to a publishing point)
-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
   rfc2190                 E.... Use RFC 2190 packetization instead of RFC 4629 for H.263
   skip_rtcp               E.... Don't send RTCP sender reports
-skip_iods         <int>   E.... Skip writing iods atom.
-iods_audio_profile <int>   E.... iods audio profile atom.
-iods_video_profile <int>   E.... iods video profile atom.
-frag_duration     <int>   E.... Maximum fragment duration
-min_frag_duration <int>   E.... Minimum fragment duration
-frag_size         <int>   E.... Maximum fragment size
-ism_lookahead     <int>   E.... Number of lookahead entries for ISM files

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

SWScaler AVOptions:
-sws_flags         <flags> E.V.. scaler 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

