ffmpeg命令参数详解（二）

 E:\program\myffmpeg\download\ffmpeg-20160803-d3426fb-win64-static\bin>ffmpeg.exe
 -h
 FFmpeg version SVN-r19590, Copyright (c) 2000-2009 Fabrice Bellard, et al.
   configuration: --prefix=e:/ffmpeg_build/r19590 --enable-gpl --enable-nonfree -
 -enable-version3 --enable-pthreads --enable-memalign-hack --enable-shared --disa
 ble-static --enable-encoder=snow --disable-encoder=vorbis --disable-decoder=aac
 --disable-encoder=aac --disable-ffserver --enable-mpegaudio-hp --enable-avisynth
 --enable-bzlib --enable-libdirac --enable-libfaac --enable-libfaad --enable-lib
 mp3lame --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-l
 ibspeex --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-avfilter --enable
 -avfilter-lavf --extra-cflags='-U__STRICT_ANSI__ -I/usr/local/include -I/usr/loc
 al/include/schroedinger-1.0 -I/usr/local/include/dirac' --extra-ldflags=-L/usr/l
 ocal/lib --extra-libs='-lpthreadGC2 -lstdc++'
   libavutil     50. 3. 0 / 50. 3. 0
   libavcodec    52.32. 0 / 52.32. 0
   libavformat   52.37. 0 / 52.37. 0
   libavdevice   52. 2. 0 / 52. 2. 0
   libavfilter    0. 5. 0 /  0. 5. 0
   libswscale     0. 7. 1 /  0. 7. 1
   built on Aug  5 2009 12:50:56, gcc: 4.3.3
 -------------------------------------------------------
   Compiled by [email protected] and [email protected]
   Support/discussion group : http://www.nextplayer.net
 -----------------------Enjoy it!-----------------------

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

 Main options:
 -L                  show license
 -h                  show help
 -version            show version
 -formats            show available formats, codecs, protocols, ...
 -f fmt              force format
 -i filename         input file name
 -y                  overwrite output files
 -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 stream:scale  set the input ts scale
 -timestamp time     set the timestamp ('now' to set the current time)
 -metadata stringstring=string  add metadata
 -dframes number     set the number of data frames to record
 -v number           set ffmpeg verbosity level
 -loglevel logging level number or string  set libav* logging level
 -target type        specify target file type ("vcd", "svcd", "dvd", "dv", "dv50"
 , "pal-vcd", "ntsc-svcd", ...)
 -xerror             exit on error

 Advanced options:
 -map file:stream[:syncfile:syncstream]  set input stream mapping
 -map_meta_data outfile:infile  set meta data information of outfile from infile
 -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         loop (current only works with images)
 -loop_output        number of times to loop output in formats that support loopi
 ng (0 loops forever)
 -threads count      thread count
 -vsync              video sync method
 -async              audio sync method
 -adrift_threshold threshold  audio drift threshold
 -vglobal            video global header storage type
 -copyts             copy timestamps
 -shortest           finish encoding within shortest input
 -dts_delta_threshold threshold  timestamp discontinuity delta threshold
 -programid          desired program number
 -copyinkf           copy initial non-keyframes
 -muxdelay seconds   set the maximum demux-decode delay
 -muxpreload seconds  set the initial demux-decode delay

 Video options:
 -b bitrate          set bitrate (in bits/s)
 -vb bitrate         set bitrate (in bits/s)
 -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)
 -croptop size       set top crop band size (in pixels)
 -cropbottom size    set bottom crop band size (in pixels)
 -cropleft size      set left crop band size (in pixels)
 -cropright size     set right crop band size (in pixels)
 -padtop size        set top pad band size (in pixels)
 -padbottom size     set bottom pad band size (in pixels)
 -padleft size       set left pad band size (in pixels)
 -padright size      set right pad band size (in pixels)
 -padcolor color     set color of pad bands (Hex 000000 thru FFFFFF)
 -vn                 disable video
 -vcodec codec       force video codec ('copy' to copy stream)
 -sameq              use same video quality as source (implies VBR)
 -pass n             select the pass number (1 or 2)
 -passlogfile prefix  select two pass log file name prefix
 -newvideo           add a new video stream to the current output stream

 Advanced Video options:
 -pix_fmt format     set pixel format, 'list' as argument shows all the pixel for
 mats supported
 -intra              use only intra frames
 -vdt n              discard threshold
 -qscale q           use fixed video quantizer scale (VBR)
 -rc_override override  rate control override for specific intervals
 -me_threshold threshold  motion estimaton threshold
 -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 fra
 merate selection
 -vbsf bitstream_filter
 -vpre preset        set the video options to the indicated preset

 Audio options:
 -ab bitrate         set bitrate (in bits/s)
 -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)
 -newaudio           add a new audio stream to the current output stream
 -alang code         set the ISO 639 language code (3 letters) of the current aud
 io stream

 Advanced Audio options:
 -atag fourcc/tag    force audio tag/fourcc
 -sample_fmt format  set sample format, 'list' as argument shows all the sample f
 ormats supported
 -absf bitstream_filter
 -apre preset        set the audio options to the indicated preset

 Subtitle options:
 -sn                 disable subtitle
 -scodec codec       force subtitle codec ('copy' to copy stream)
 -newsubtitle        add a new subtitle stream to the current output stream
 -slang code         set the ISO 639 language code (3 letters) of the current sub
 title stream
 -stag fourcc/tag    force subtitle tag/fourcc
 -sbsf bitstream_filter
 -spre preset        set the subtitle options to the indicated preset

 Audio/Video grab options:
 -vc channel         set video grab channel (DV1394 only)
 -tvstd standard     set television standard (NTSC, PAL (SECAM))
 -isync              sync read on input

 AVCodecContext AVOptions:
 -b                 <int>   E.V.. 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 ev
 ery keyframe
    bitexact                EDVAS use only bitexact stuff (except (i)dct)
    aic                     E.V.. h263 advanced intra coding / mpeg4 ac predictio
 n
    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 selecti
 on
    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 da
 ta
    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
 -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
 -hurry_up          <int>   .DV..
 -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 aut
 odetection)
    xvid_ilace              .DV.. Xvid interlacing bug (autodetected if fourcc==X
 VIX)
    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/vers
 ion)
    qpel_chroma2            .DV..
    direct_blocksize         .DV.. direct-qpel-blocksize bug (autodetected per fo
 urcc/version)
    edge                    .DV.. edge padding bug (autodetected per fourcc/versi
 on)
    hpel_chroma             .DV..
    dc_clip                 .DV..
    ms                      .DV.. workaround various bugs in microsofts broken de
 coders
 -lelim             <int>   E.V.. single coefficient elimination threshold for lu
 minance (negative values also consider dc coefficient)
 -celim             <int>   E.V.. single coefficient elimination threshold for ch
 rominance (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..
    inofficial              EDV.. allow inofficial 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..
 -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 on
 es
 -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
 -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
 -mb_qmin           <int>   E.V.. obsolete, use qmin
 -mb_qmax           <int>   E.V.. obsolete, use qmax
 -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 difference
 s
    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 difference
 s
    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 difference
 s
    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 difference
 s
    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 f
 rame
 -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 difference
 s
    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-p
 ass
 -subq              <int>   E.V.. sub pel motion estimation quality
 -me_range          <int>   E.V.. limit motion vectors range (1023 for DivX playe
 r)
 -ibias             <int>   E.V.. intra quant bias
 -pbias             <int>   E.V.. inter quant bias
 -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 mod
 e)
    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
    bpyramid                E.V.. allows B-frames to be used as references for pr
 edicting
    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
 -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..
 -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 a
 re skipped
 -profile           <int>   E.VA.
    unknown                 E.VA.
    aac_main                E..A.
    aac_low                 E..A.
    aac_ssr                 E..A.
    aac_ltp                 E..A.
 -level             <int>   E.VA.
    unknown                 E.VA.
 -lowres            <int>   .DV.. decode at 11= 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 difference
 s
    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 t
 o 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 bidirecti
 onal 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)
 -cqp               <int>   E.V.. constant quantization parameter rate control me
 thod
 -keyint_min        <int>   E.V.. minimum interval between IDR-frames (x264)
 -refs              <int>   E.V.. reference frames to consider for motion compens
 ation (Snow)
 -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 (spatia
 l), 2 (temporal), 3 (auto)
 -complexityblur    <float> E.V.. reduce fluctuations in qp (before curve compres
 sion)
 -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 t
 o 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.
 -use_lpc           <int>   E..A. sets whether to use LPC mode (FLAC)
 -lpc_coeff_precision <int>   E..A. LPC coefficient precision (FLAC)
 -min_prediction_order <int>   E..A.
 -max_prediction_order <int>   E..A.
 -prediction_order_method <int>   E..A. search method for selecting prediction or
 der
 -min_partition_order <int>   E..A.
 -max_partition_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
 -drc_scale         <float> .D.A. percentage of dynamic range compression to appl
 y
 -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..

 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
 -track             <int>   E....  set the track number
 -year              <int>   E.... set the year
 -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...

 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
    mmx                     E.V.. MMX SIMD acceleration
    mmx2                    E.V.. MMX2 SIMD acceleration
    3dnow                   E.V.. 3DNOW SIMD acceleration
    altivec                 E.V.. AltiVec SIMD acceleration
    bfin                    E.V.. Blackfin SIMD acceleration
    full_chroma_int         E.V.. full chroma interpolation
    full_chroma_inp         E.V.. full chroma input
    bitexact                E.V..

 C:\Documents and Settings\Administrator>