查看帮助：ffmpeg -h full
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
Getting help:
-h -- print basic options
-h long -- print more options
-h full -- print all options (including all format and codec specific options, very long)
See man ffmpeg for detailed description of the options.
Print help / information / capabilities:
-L show license
-h topic show help
-? topic show help
-help topic show help
--help topic show help
-version show version
-formats show available formats
-codecs show available codecs
-decoders show available decoders
-encoders show available encoders
-bsfs show available bit stream filters
-protocols show available protocols
-filters show available filters
-pix_fmts show available pixel formats
-layouts show standard channel layouts
-sample_fmts show available audio sample formats
Global options (affect whole program instead of just one file:
-loglevel loglevel set libav* logging level
-v loglevel set libav* logging level
-report generate a report
-max_alloc bytes set maximum size of a single allocated block
-y overwrite output files
-n do not overwrite output files
-stats print progress report during encoding
-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
-vol volume change audio volume (256=normal)
Advanced global options:
-cpuflags flags force specific cpu flags
-benchmark add timings for benchmarking
-benchmark_all add timings for each task
-progress url write program-readable progress information
-stdin enable or disable interaction on standard input
-timelimit limit set max runtime in seconds
-dump dump each input packet
-hex when dumping packets, also dump the payload
-vsync video sync method
-async audio sync method
-adrift_threshold threshold audio drift threshold
-copyts copy timestamps
-copytb mode copy input stream time base when stream copying
-dts_delta_threshold threshold timestamp discontinuity delta threshold
-dts_error_threshold threshold timestamp error delta threshold
-xerror error exit on error
-filter_complex graph_description create a complex filtergraph
-debug_ts print timestamp debugging info
-intra deprecated use -g 1
-vdt n discard threshold
-sameq Removed
-same_quant Removed
-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
-dc precision intra_dc_precision
-qphist show QP histogram
-vc channel deprecated, use -channel
-tvstd standard deprecated, use -standard
-isync this option is deprecated and does nothing
Per-file main options:
-f fmt force format
-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
-timestamp time set the recording timestamp ('now' to set the current time)
-metadata string=string add metadata
-target type specify target file type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd", "ntsc-svcd", ...)
-frames number set the number of frames to record
-filter filter_graph set stream filtergraph
-reinit_filter reinit filtergraph on input parameter changes
Advanced per-file options:
-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
-itsoffset time_off set the input ts offset
-itsscale scale set the input ts scale
-dframes number set the number of data frames to record
-re read input at native frame rate
-shortest finish encoding within shortest input
-copyinkf copy initial non-keyframes
-copypriorss copy or discard frames before start time
-tag fourcc/tag force codec tag/fourcc
-q q use fixed quality scale (VBR)
-qscale q use fixed quality scale (VBR)
-profile profile set profile
-attach filename add an attachment to the output file
-dump_attachment filename extract an attachment into a file
-muxdelay seconds set the maximum demux-decode delay
-muxpreload seconds set the initial demux-decode delay
-bsf bitstream_filters A comma-separated list of bitstream filters
-fpre filename set options from indicated preset file
-dcodec codec force data codec ('copy' to copy stream)
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)
-timecode hh:mm:ss[:;.]ff set initial TimeCode value.
-pass n select the pass number (1 to 3)
-vf filter_graph set 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
-sameq Removed
-same_quant Removed
-passlogfile prefix select two pass log file name prefix
-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
-streamid streamIndex:value set the value of an outfile streamid
-force_key_frames timestamps force key frames at specified timestamps
-vc channel deprecated, use -channel
-tvstd standard deprecated, use -standard
-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)
-af filter_graph set audio filters
Advanced Audio options:
-atag fourcc/tag force audio tag/fourcc
-sample_fmt format set sample format
-channel_layout layout set channel layout
-absf audio bitstream_filters deprecated
-apre preset set the audio options to the indicated preset
Subtitle options:
-s size set frame size (WxH or abbreviation)
-sn disable subtitle
-scodec codec force subtitle codec ('copy' to copy stream)
-stag fourcc/tag force subtitle tag/fourcc
-fix_sub_duration fix subtitles duration
-spre preset set the subtitle options to the indicated preset
AVCodecContext AVOptions:
-b <int> E..VA. set bitrate (in bits/s) (from 0 to INT_MAX)
-ab <int> E...A. set bitrate (in bits/s) (from 0 to INT_MAX)
-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 minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality. (from 1 to INT_MAX)
-flags <flags> ED.VAS
mv4 E..V.. use four motion vectors per macroblock (MPEG-4)
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 ED.V.. 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 ED.V.. force low delay
global_header E..VA. place global headers in extradata instead of every keyframe
bitexact ED.VAS use only bitexact functions (except (I)DCT)
aic E..V.. H.263 advanced intra coding / MPEG-4 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 (from INT_MIN to INT_MAX)
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.. diamond 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 (GOP) size (from INT_MIN to INT_MAX)
-ar <int> ED..A. set audio sampling rate (in Hz) (from INT_MIN to INT_MAX)
-ac <int> ED..A. set number of audio channels (from INT_MIN to INT_MAX)
-cutoff <int> E...A. set cutoff bandwidth (from INT_MIN to INT_MAX)
-frame_size <int> E...A. (from INT_MIN to INT_MAX)
-qcomp <float> E..V.. video quantizer scale compression (VBR). Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0 (from -3.40282e+038 to FLT_MAX)
-qblur <float> E..V.. video quantizer scale blur (VBR) (from -1 to FLT_MAX)
-qmin <int> E..V.. minimum video quantizer scale (VBR) (from -1 to 69)
-qmax <int> E..V.. maximum video quantizer scale (VBR) (from -1 to 1024)
-qdiff <int> E..V.. maximum difference between the quantizer scales (VBR) (from INT_MIN to INT_MAX)
-bf <int> E..V.. use 'frames' B frames (from -1 to 16)
-b_qfactor <float> E..V.. QP factor between P- and B-frames (from -3.40282e+038 to FLT_MAX)
-rc_strategy <int> E..V.. ratecontrol method (from INT_MIN to INT_MAX)
-b_strategy <int> E..V.. strategy to choose between I/P/B-frames (from INT_MIN to INT_MAX)
-ps <int> E..V.. RTP payload size in bytes (from INT_MIN to INT_MAX)
-bug <flags> .D.V.. work around not autodetected encoder bugs
autodetect .D.V..
old_msmpeg4 .D.V.. some old lavc-generated MSMPEG4v3 files (no autodetection)
xvid_ilace .D.V.. Xvid interlacing bug (autodetected if FOURCC == XVIX)
ump4 .D.V.. (autodetected if FOURCC == UMP4)
no_padding .D.V.. padding bug (autodetected)
amv .D.V..
ac_vlc .D.V.. illegal VLC bug (autodetected per FOURCC)
qpel_chroma .D.V..
std_qpel .D.V.. old standard qpel (autodetected per FOURCC/version)
qpel_chroma2 .D.V..
direct_blocksize .D.V.. direct-qpel-blocksize bug (autodetected per FOURCC/version)
edge .D.V.. edge padding bug (autodetected per FOURCC/version)
hpel_chroma .D.V..
dc_clip .D.V..
ms .D.V.. work around various bugs in Microsoft's broken decoders
trunc .D.V.. truncated frames
-lelim <int> E..V.. single coefficient elimination threshold for luminance (negative values also consider DC coefficient) (from INT_MIN to INT_MAX)
-celim <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider DC coefficient) (from INT_MIN to INT_MAX)
-strict <int> ED.VA. how strictly to follow the standards (from INT_MIN to INT_MAX)
very ED.V.. strictly conform to a older more strict version of the spec or reference software
strict ED.V.. strictly conform to all the things in the spec no matter what the consequences
normal ED.V..
unofficial ED.V.. allow unofficial extensions
experimental ED.V.. allow non-standardized experimental things
-b_qoffset <float> E..V.. QP offset between P- and B-frames (from -3.40282e+038 to FLT_MAX)
-err_detect <flags> .D.VA. set error detection flags
crccheck .D.VA. verify embedded CRCs
bitstream .D.VA. detect bitstream specification deviations
buffer .D.VA. detect improper bitstream length
explode .D.VA. abort decoding on minor error detection
careful .D.VA. consider things that violate the spec and have not been seen in the wild as errors
compliant .D.VA. consider all spec non compliancies as errors
aggressive .D.VA. consider things that a sane encoder should not do as an error
-mpeg_quant <int> E..V.. use MPEG quantizers instead of H.263 (from INT_MIN to INT_MAX)
-qsquish <float> E..V.. how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99)
-rc_qmod_amp <float> E..V.. experimental quantizer modulation (from -3.40282e+038 to FLT_MAX)
-rc_qmod_freq <int> E..V.. experimental quantizer modulation (from INT_MIN to INT_MAX)
-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 maximum bitrate tolerance (in bits/s). Requires bufsize to be set. (from INT_MIN to INT_MAX)
-minrate <int> E..VA. Set minimum bitrate tolerance (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise. (from INT_MIN to INT_MAX)
-bufsize <int> E..VA. set ratecontrol buffer size (in bits) (from INT_MIN to INT_MAX)
-rc_buf_aggressivity <float> E..V.. currently useless (from -3.40282e+038 to FLT_MAX)
-i_qfactor <float> E..V.. QP factor between P- and I-frames (from -3.40282e+038 to FLT_MAX)
-i_qoffset <float> E..V.. QP offset between P- and I-frames (from -3.40282e+038 to FLT_MAX)
-rc_init_cplx <float> E..V.. initial complexity for 1-pass encoding (from -3.40282e+038 to FLT_MAX)
-dct <int> E..V.. DCT algorithm (from 0 to INT_MAX)
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 (from -3.40282e+038 to FLT_MAX)
-tcplx_mask <float> E..V.. temporal complexity masking (from -3.40282e+038 to FLT_MAX)
-scplx_mask <float> E..V.. spatial complexity masking (from -3.40282e+038 to FLT_MAX)
-p_mask <float> E..V.. inter masking (from -3.40282e+038 to FLT_MAX)
-dark_mask <float> E..V.. compresses dark areas stronger than medium ones (from -3.40282e+038 to FLT_MAX)
-idct <int> ED.V.. select IDCT implementation (from 0 to INT_MAX)
auto ED.V..
int ED.V..
simple ED.V..
simplemmx ED.V..
libmpeg2mmx ED.V..
mmi ED.V..
arm ED.V..
altivec ED.V..
sh4 ED.V..
simplearm ED.V..
simplearmv5te ED.V..
simplearmv6 ED.V..
simpleneon ED.V..
simplealpha ED.V..
h264 ED.V..
vp3 ED.V..
ipp ED.V..
xvidmmx ED.V..
faani ED.V.. floating point AAN IDCT
-ec <flags> .D.V.. set error concealment strategy
guess_mvs .D.V.. iterative motion vector (MV) search (slow)
deblock .D.V.. use strong deblock filter for damaged MBs
-pred <int> E..V.. prediction method (from INT_MIN to INT_MAX)
left E..V..
plane E..V..
median E..V..
-aspect <rational> E..V.. sample aspect ratio (from 0 to 10)
-debug <flags> ED.VAS print specific debug info
pict .D.V.. picture info
rc E..V.. rate control
bitstream .D.V..
mb_type .D.V.. macroblock (MB) type
qp .D.V.. per-block quantization parameter (QP)
mv .D.V.. motion vector
dct_coeff .D.V..
skip .D.V..
startcode .D.V..
pts .D.V..
er .D.V.. error recognition
mmco .D.V.. memory management control operations (H.264)
bugs .D.V..
vis_qp .D.V.. visualize quantization parameter (QP), lower QP are tinted greener
vis_mb_type .D.V.. visualize block types
buffers .D.V.. picture buffer allocations
thread_ops .D.V.. threading operations
-vismv <int> .D.V.. visualize motion vectors (MVs) (from 0 to INT_MAX)
pf .D.V.. forward predicted MVs of P-frames
bf .D.V.. forward predicted MVs of B-frames
bb .D.V.. backward predicted MVs of B-frames
-cmp <int> E..V.. full-pel ME compare function (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
-last_pred <int> E..V.. amount of motion predictors from the previous frame (from INT_MIN to INT_MAX)
-preme <int> E..V.. pre motion estimation (from INT_MIN to INT_MAX)
-precmp <int> E..V.. pre motion estimation compare function (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
-subq <int> E..V.. sub-pel motion estimation quality (from INT_MIN to INT_MAX)
-me_range <int> E..V.. limit motion vectors range (1023 for DivX player) (from INT_MIN to INT_MAX)
-ibias <int> E..V.. intra quant bias (from INT_MIN to INT_MAX)
-pbias <int> E..V.. inter quant bias (from INT_MIN to INT_MAX)
-global_quality <int> E..VA. (from INT_MIN to INT_MAX)
-coder <int> E..V.. (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
-mbd <int> E..V.. macroblock decision algorithm (high quality mode) (from INT_MIN to INT_MAX)
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 (from INT_MIN to INT_MAX)
-lmin <int> E..V.. minimum Lagrange factor (VBR) (from 0 to INT_MAX)
-lmax <int> E..V.. maximum Lagrange factor (VBR) (from 0 to INT_MAX)
-nr <int> E..V.. noise reduction (from INT_MIN to INT_MAX)
-rc_init_occupancy <int> E..V.. number of bits which should be loaded into the rc buffer before decoding starts (from INT_MIN to INT_MAX)
-inter_threshold <int> E..V.. (from INT_MIN to INT_MAX)
-flags2 <flags> ED.VA.
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
chunks .D.V.. Frame data might be split into multiple chunks
showall .D.V.. Show all frames before the first keyframe
skiprd E..V.. Deprecated, use mpegvideo private options instead
-error <int> E..V.. (from INT_MIN to INT_MAX)
-qns <int> E..V.. deprecated, use mpegvideo private options instead (from INT_MIN to INT_MAX)
-threads <int> ED.V.. (from 0 to INT_MAX)
auto ED.V.. autodetect a suitable number of threads to use
-me_threshold <int> E..V.. motion estimation threshold (from INT_MIN to INT_MAX)
-mb_threshold <int> E..V.. macroblock threshold (from INT_MIN to INT_MAX)
-dc <int> E..V.. intra_dc_precision (from INT_MIN to INT_MAX)
-nssew <int> E..V.. nsse weight (from INT_MIN to INT_MAX)
-skip_top <int> .D.V.. number of macroblock rows at the top which are skipped (from INT_MIN to INT_MAX)
-skip_bottom <int> .D.V.. number of macroblock rows at the bottom which are skipped (from INT_MIN to INT_MAX)
-profile <int> E..VA. (from INT_MIN to INT_MAX)
unknown E..VA.
aac_main E...A.
aac_low E...A.
aac_ssr E...A.
aac_ltp E...A.
aac_he E...A.
aac_he_v2 E...A.
aac_ld E...A.
aac_eld 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. (from INT_MIN to INT_MAX)
unknown E..VA.
-lowres <int> .D.VA. decode at 1= 1/2, 2=1/4, 3=1/8 resolutions (from 0 to INT_MAX)
-skip_threshold <int> E..V.. frame skip threshold (from INT_MIN to INT_MAX)
-skip_factor <int> E..V.. frame skip factor (from INT_MIN to INT_MAX)
-skip_exp <int> E..V.. frame skip exponent (from INT_MIN to INT_MAX)
-skipcmp <int> E..V.. frame skip compare function (from INT_MIN to INT_MAX)
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.. increase the quantizer for macroblocks close to borders (from -3.40282e+038 to FLT_MAX)
-mblmin <int> E..V.. minimum macroblock Lagrange factor (VBR) (from 1 to 32767)
-mblmax <int> E..V.. maximum macroblock Lagrange factor (VBR) (from 1 to 32767)
-mepc <int> E..V.. motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX)
-skip_loop_filter <int> .D.V.. (from INT_MIN to INT_MAX)
none .D.V..
default .D.V..
noref .D.V..
bidir .D.V..
nokey .D.V..
all .D.V..
-skip_idct <int> .D.V.. (from INT_MIN to INT_MAX)
none .D.V..
default .D.V..
noref .D.V..
bidir .D.V..
nokey .D.V..
all .D.V..
-skip_frame <int> .D.V.. (from INT_MIN to INT_MAX)
none .D.V..
default .D.V..
noref .D.V..
bidir .D.V..
nokey .D.V..
all .D.V..
-bidir_refine <int> E..V.. refine the two motion vectors used in bidirectional macroblocks (from 0 to 4)
-brd_scale <int> E..V.. downscale frames for dynamic B-frame decision (from 0 to 10)
-keyint_min <int> E..V.. minimum interval between IDR-frames (from INT_MIN to INT_MAX)
-refs <int> E..V.. reference frames to consider for motion compensation (from INT_MIN to INT_MAX)
-chromaoffset <int> E..V.. chroma QP offset from luma (from INT_MIN to INT_MAX)
-trellis <int> E..VA. rate-distortion optimal quantization (from INT_MIN to INT_MAX)
-sc_factor <int> E..V.. multiplied by qscale for each frame and added to scene_change_score (from 0 to INT_MAX)
-mv0_threshold <int> E..V.. (from 0 to INT_MAX)
-b_sensitivity <int> E..V.. adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX)
-compression_level <int> E..VA. (from INT_MIN to INT_MAX)
-min_prediction_order <int> E...A. (from INT_MIN to INT_MAX)
-max_prediction_order <int> E...A. (from INT_MIN to INT_MAX)
-timecode_frame_start <int64> E..V.. GOP timecode frame start number, in non-drop-frame format (from 0 to I64_MAX)
-request_channels <int> .D..A. set desired number of audio channels (from 0 to INT_MAX)
-channel_layout <int64> ED..A. (from 0 to I64_MAX)
-request_channel_layout <int64> .D..A. (from 0 to I64_MAX)
-rc_max_vbv_use <float> E..V.. (from 0 to FLT_MAX)
-rc_min_vbv_use <float> E..V.. (from 0 to FLT_MAX)
-ticks_per_frame <int> ED.VA. (from 1 to INT_MAX)
-color_primaries <int> ED.V.. (from 1 to 8)
-color_trc <int> ED.V.. (from 1 to 7)
-colorspace <int> ED.V.. (from 1 to 8)
-color_range <int> ED.V.. (from 0 to 2)
-chroma_sample_location <int> ED.V.. (from 0 to 6)
-slices <int> E..V.. number of slices, used in parallelized encoding (from 0 to INT_MAX)
-thread_type <flags> ED.V.. select multithreading type
slice ED.V..
frame ED.V..
-audio_service_type <int> E...A. audio service type (from 0 to 8)
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 <sample_fmt> .D..A. sample format audio decoders should prefer
cljr encoder AVOptions:
-dither_type <int> E..V.. Dither type (from 0 to 2)
dnxhd AVOptions:
-nitris_compat <int> E..V.. encode with Avid Nitris compatibility (from 0 to 1)
ffv1 encoder AVOptions:
-slicecrc <int> E..V.. Protect slices with CRCs (from -1 to 1)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
frwu Decoder AVOptions:
-change_field_order <int> .D.V.. Change field order (from 0 to 1)
gif decoder AVOptions:
-trans_color <int> .D.V.. color value (ARGB) that is used instead of transparent color (from 0 to 4.29497e+009)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
H.263 encoder AVOptions:
-obmc <int> E..V.. use overlapped block motion compensation. (from 0 to 1)
-structured_slices <int> E..V.. Write slice start position at every GOB header instead of just GOB number. (from 0 to 1)
-mb_info <int> E..V.. emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size (from 0 to INT_MAX)
-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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
H.263p encoder AVOptions:
-umv <int> E..V.. Use unlimited motion vectors. (from 0 to 1)
-aiv <int> E..V.. Use alternative inter VLC. (from 0 to 1)
-obmc <int> E..V.. use overlapped block motion compensation. (from 0 to 1)
-structured_slices <int> E..V.. Write slice start position at every GOB header instead of just GOB number. (from 0 to 1)
-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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
H264 Decoder AVOptions:
MJPEG decoder AVOptions:
-extern_huff <int> .D.V.. Use external huffman table. (from 0 to 1)
mpeg1video encoder AVOptions:
-gop_timecode <string> E..V.. MPEG GOP Timecode in hh:mm:ss[:;.]ff format
-intra_vlc <int> E..V.. Use MPEG-2 intra VLC table. (from 0 to 1)
-drop_frame_timecode <int> E..V.. Timecode is in drop frame format. (from 0 to 1)
-scan_offset <int> E..V.. Reserve space for SVCD scan offset user data. (from 0 to 1)
-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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
mpeg2video encoder AVOptions:
-gop_timecode <string> E..V.. MPEG GOP Timecode in hh:mm:ss[:;.]ff format
-intra_vlc <int> E..V.. Use MPEG-2 intra VLC table. (from 0 to 1)
-drop_frame_timecode <int> E..V.. Timecode is in drop frame format. (from 0 to 1)
-scan_offset <int> E..V.. Reserve space for SVCD scan offset user data. (from 0 to 1)
-non_linear_quant <int> E..V.. Use nonlinear quantizer. (from 0 to 1)
-alternate_scan <int> E..V.. Enable alternate scantable. (from 0 to 1)
-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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
MPEG4 encoder AVOptions:
-data_partitioning <int> E..V.. Use data partitioning. (from 0 to 1)
-alternate_scan <int> E..V.. Enable alternate scantable. (from 0 to 1)
-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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
ProRes encoder AVOptions:
-mbs_per_slice <int> E..V.. macroblocks per slice (from 1 to 8)
-profile <int> E..V.. (from 0 to 3)
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 (from 0 to 8192)
-quant_mat <int> E..V.. quantiser matrix (from -1 to 4)
auto E..V..
proxy E..V..
lt E..V..
standard E..V..
hq E..V..
default E..V..
rawdec AVOptions:
-top <int> .D.V.. top field first (from -1 to 1)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
snow encoder AVOptions:
-memc_only <int> E..V.. Only do ME/MC (I frames -> ref, P frame -> ME+MC). (from 0 to 1)
-no_bitstream <int> E..V.. Skip final bitstream writeout. (from 0 to 1)
TIFF encoder AVOptions:
-dpi <int> E..V.. set the image resolution (in dpi) (from 1 to 65536)
-compression_algo <int> E..V.. (from 1 to 32946)
packbits E..V..
raw E..V..
lzw E..V..
deflate E..V..
V210 Decoder AVOptions:
-custom_stride <int> .D.V.. Custom V210 stride (from INT_MIN to INT_MAX)
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) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int> E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int> E..V.. (from 0 to INT_MAX)
AAC encoder AVOptions:
-stereo_mode <int> E...A. Stereo coding method (from -1 to 1)
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. (from 0 to 3)
AAC decoder AVOptions:
-dual_mono_mode <int> .D..A. Select the channel to decode for dual mono (from -1 to 2)
auto .D..A. autoselection
main .D..A. Select Main/Left channel
sub .D..A. Select Sub/Right channel
both .D..A. Select both channels
AC-3 Encoder AVOptions:
-per_frame_metadata <int> E...A. Allow Changing Metadata Per-Frame (from 0 to 1)
-center_mixlev <float> E...A. Center Mix Level (from 0 to 1)
-surround_mixlev <float> E...A. Surround Mix Level (from 0 to 1)
-mixing_level <int> E...A. Mixing Level (from -1 to 111)
-room_type <int> E...A. Room Type (from -1 to 2)
notindicated E...A. Not Indicated (default)
large E...A. Large Room
small E...A. Small Room
-copyright <int> E...A. Copyright Bit (from -1 to 1)
-dialnorm <int> E...A. Dialogue Level (dB) (from -31 to -1)
-dsur_mode <int> E...A. Dolby Surround Mode (from -1 to 2)
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 (from -1 to 1)
-dmix_mode <int> E...A. Preferred Stereo Downmix Mode (from -1 to 2)
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 (from -1 to 2)
-ltrt_surmixlev <float> E...A. Lt/Rt Surround Mix Level (from -1 to 2)
-loro_cmixlev <float> E...A. Lo/Ro Center Mix Level (from -1 to 2)
-loro_surmixlev <float> E...A. Lo/Ro Surround Mix Level (from -1 to 2)
-dsurex_mode <int> E...A. Dolby Surround EX Mode (from -1 to 2)
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 (from -1 to 2)
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 (from -1 to 1)
standard E...A. Standard (default)
hdcd E...A. HDCD
-stereo_rematrixing <int> E...A. Stereo Rematrixing (from 0 to 1)
-channel_coupling <int> E...A. Channel Coupling (from -1 to 1)
auto E...A. Selected by the Encoder
-cpl_start_band <int> E...A. Coupling Start Band (from -1 to 15)
auto E...A. Selected by the Encoder
AC3 decoder AVOptions:
-drc_scale <float> .D..A. percentage of dynamic range compression to apply (from 0 to 1)
Fixed-Point AC-3 Encoder AVOptions:
-per_frame_metadata <int> E...A. Allow Changing Metadata Per-Frame (from 0 to 1)
-center_mixlev <float> E...A. Center Mix Level (from 0 to 1)
-surround_mixlev <float> E...A. Surround Mix Level (from 0 to 1)
-mixing_level <int> E...A. Mixing Level (from -1 to 111)
-room_type <int> E...A. Room Type (from -1 to 2)
notindicated E...A. Not Indicated (default)
large E...A. Large Room
small E...A. Small Room
-copyright <int> E...A. Copyright Bit (from -1 to 1)
-dialnorm <int> E...A. Dialogue Level (dB) (from -31 to -1)
-dsur_mode <int> E...A. Dolby Surround Mode (from -1 to 2)
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 (from -1 to 1)
-dmix_mode <int> E...A. Preferred Stereo Downmix Mode (from -1 to 2)
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 (from -1 to 2)
-ltrt_surmixlev <float> E...A. Lt/Rt Surround Mix Level (from -1 to 2)
-loro_cmixlev <float> E...A. Lo/Ro Center Mix Level (from -1 to 2)
-loro_surmixlev <float> E...A. Lo/Ro Surround Mix Level (from -1 to 2)
-dsurex_mode <int> E...A. Dolby Surround EX Mode (from -1 to 2)
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 (from -1 to 2)
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 (from -1 to 1)
standard E...A. Standard (default)
hdcd E...A. HDCD
-stereo_rematrixing <int> E...A. Stereo Rematrixing (from 0 to 1)
-channel_coupling <int> E...A. Channel Coupling (from -1 to 1)
auto E...A. Selected by the Encoder
-cpl_start_band <int> E...A. Coupling Start Band (from -1 to 15)
auto E...A. Selected by the Encoder
APE decoder AVOptions:
-max_samples <int> .D..A. maximum number of samples decoded per call (from 1 to INT_MAX)
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 (from 0 to 1)
-mixing_level <int> E...A. Mixing Level (from -1 to 111)
-room_type <int> E...A. Room Type (from -1 to 2)
notindicated E...A. Not Indicated (default)
large E...A. Large Room
small E...A. Small Room
-copyright <int> E...A. Copyright Bit (from -1 to 1)
-dialnorm <int> E...A. Dialogue Level (dB) (from -31 to -1)
-dsur_mode <int> E...A. Dolby Surround Mode (from -1 to 2)
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 (from -1 to 1)
-dmix_mode <int> E...A. Preferred Stereo Downmix Mode (from -1 to 2)
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 (from -1 to 2)
-ltrt_surmixlev <float> E...A. Lt/Rt Surround Mix Level (from -1 to 2)
-loro_cmixlev <float> E...A. Lo/Ro Center Mix Level (from -1 to 2)
-loro_surmixlev <float> E...A. Lo/Ro Surround Mix Level (from -1 to 2)
-dsurex_mode <int> E...A. Dolby Surround EX Mode (from -1 to 2)
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 (from -1 to 2)
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 (from -1 to 1)
standard E...A. Standard (default)
hdcd E...A. HDCD
-stereo_rematrixing <int> E...A. Stereo Rematrixing (from 0 to 1)
-channel_coupling <int> E...A. Channel Coupling (from -1 to 1)
auto E...A. Selected by the Encoder
-cpl_start_band <int> E...A. Coupling Start Band (from -1 to 15)
auto E...A. Selected by the Encoder
E-AC3 decoder AVOptions:
-drc_scale <float> .D..A. percentage of dynamic range compression to apply (from 0 to 1)
FLAC encoder AVOptions:
-lpc_coeff_precision <int> E...A. LPC coefficient precision (from 0 to 15)
-lpc_type <int> E...A. LPC algorithm (from -1 to 3)
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 (from 1 to INT_MAX)
-min_partition_order <int> E...A. (from -1 to 8)
-max_partition_order <int> E...A. (from -1 to 8)
-prediction_order_method <int> E...A. Search method for selecting prediction order (from -1 to 5)
estimation E...A.
2level E...A.
4level E...A.
8level E...A.
search E...A.
log E...A.
-ch_mode <int> E...A. Stereo decorrelation mode (from -1 to 3)
auto E...A.
indep E...A.
left_side E...A.
right_side E...A.
mid_side E...A.
G.723.1 decoder AVOptions:
-postfilter <int> .D..A. postfilter on/off (from 0 to 1)
g722 decoder AVOptions:
-bits_per_codeword <flags> .D..A. Bits per G722 codeword
g726 AVOptions:
-code_size <int> E...A. Bits per code (from 2 to 5)
dvdsubdec AVOptions:
-palette <string> .D...S set the global palette
PGS subtitle decoder AVOptions:
-forced_subs_only <int> .D...S Only show forced subtitles (from 0 to 1)
pjs decoder AVOptions:
-keep_ass_markup <int> .D...S Set if ASS tags must be escaped (from 0 to 1)
subviewer1 decoder AVOptions:
-keep_ass_markup <int> .D...S Set if ASS tags must be escaped (from 0 to 1)
text decoder AVOptions:
-keep_ass_markup <int> .D...S Set if ASS tags must be escaped (from 0 to 1)
vplayer decoder AVOptions:
-keep_ass_markup <int> .D...S Set if ASS tags must be escaped (from 0 to 1)
libmp3lame encoder AVOptions:
-reservoir <int> E...A. Use bit reservoir. (from 0 to 1)
libopencore_amrnb AVOptions:
-dtx <int> E...A. Allow DTX (generate comfort noise) (from 0 to 1)
libopenjpeg AVOptions:
-format <int> E..V.. Codec Format (from 0 to 2)
j2k E..V..
jp2 E..V..
-profile <int> E..V.. (from 0 to 4)
jpeg2000 E..V..
cinema2k E..V..
cinema4k E..V..
-cinema_mode <int> E..V.. Digital Cinema (from 0 to 3)
off E..V..
2k_24 E..V..
2k_48 E..V..
4k_24 E..V..
-prog_order <int> E..V.. Progression Order (from 0 to 4)
lrcp E..V..
rlcp E..V..
rpcl E..V..
pcrl E..V..
cprl E..V..
-numresolution <int> E..V.. (from 1 to INT_MAX)
-numlayers <int> E..V.. (from 1 to 10)
-disto_alloc <int> E..V.. (from 0 to 1)
-fixed_alloc <int> E..V.. (from 0 to 1)
-fixed_quality <int> E..V.. (from 0 to 1)
libopenjpeg AVOptions:
-lowqual <int> .D.V.. Limit the number of layers used for decoding (from 0 to INT_MAX)
libopus AVOptions:
-application <int> E...A. Intended application type (from 2048 to 2051)
voip E...A. Favor improved speech intelligibility
audio E...A. Favor faithfulness to the input
lowdelay E...A. Restrict to only the lowest delay modes
-frame_duration <float> E...A. Duration of a frame in milliseconds (from 2.5 to 60)
-packet_loss <int> E...A. Expected packet loss percentage (from 0 to 100)
-vbr <int> E...A. Variable bit rate mode (from 0 to 2)
off E...A. Use constant bit rate
on E...A. Use variable bit rate
constrained E...A. Use constrained VBR
libspeex AVOptions:
-abr <int> E...A. Use average bit rate (from 0 to 1)
-cbr_quality <int> E...A. Set quality value (0 to 10) for CBR (from 0 to 10)
-frames_per_packet <int> E...A. Number of frames to encode in each packet (from 1 to 8)
-vad <int> E...A. Voice Activity Detection (from 0 to 1)
-dtx <int> E...A. Discontinuous Transmission (from 0 to 1)
libtwolame encoder AVOptions:
-mode <int> E...A. Mpeg Mode (from -1 to 3)
auto E...A.
stereo E...A.
joint_stereo E...A.
dual_channel E...A.
mono E...A.
-psymodel <int> E...A. Psychoacoustic Model (from -1 to 4)
-energy_levels <int> E...A. enable energy levels (from 0 to 1)
-error_protection <int> E...A. enable CRC error protection (from 0 to 1)
-copyright <int> E...A. set MPEG Audio Copyright flag (from 0 to 1)
-original <int> E...A. set MPEG Audio Original flag (from 0 to 1)
libvo_amrwbenc AVOptions:
-dtx <int> E...A. Allow DTX (generate comfort noise) (from 0 to 1)
libvorbis AVOptions:
-iblock <double> E...A. Sets the impulse block bias (from -15 to 0)
libvpx encoder AVOptions:
-cpu-used <int> E..V.. Quality/Speed ratio modifier (from INT_MIN to INT_MAX)
-auto-alt-ref <int> E..V.. Enable use of alternate reference frames (2-pass only) (from -1 to 1)
-lag-in-frames <int> E..V.. Number of frames to look ahead for alternate reference frame selection (from -1 to INT_MAX)
-arnr-maxframes <int> E..V.. altref noise reduction max frame count (from -1 to INT_MAX)
-arnr-strength <int> E..V.. altref noise reduction filter strength (from -1 to INT_MAX)
-arnr-type <int> E..V.. altref noise reduction filter type (from -1 to INT_MAX)
backward E..V..
forward E..V..
centered E..V..
-deadline <int> E..V.. Time to spend encoding, in microseconds. (from INT_MIN to INT_MAX)
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.
-max-intra-rate <int> E..V.. Maximum I-frame bitrate (pct) 0=unlimited (from -1 to INT_MAX)
-speed <int> E..V.. (from -16 to 16)
-quality <int> E..V.. (from INT_MIN to INT_MAX)
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 (from 0 to 15)
-arnr_strength <int> E..V.. altref noise reduction filter strength (from 0 to 6)
-arnr_type <int> E..V.. altref noise reduction filter type (from 1 to 3)
-rc_lookahead <int> E..V.. Number of frames to look ahead for alternate reference frame selection (from 0 to 25)
-crf <int> E..V.. Select the quality for constant quality mode (from 0 to 63)
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 (from 0 to 1)
-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 (from -1 to FLT_MAX)
-crf_max <float> E..V.. In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT_MAX)
-qp <int> E..V.. Constant quantization parameter rate control method (from -1 to INT_MAX)
-aq-mode <int> E..V.. AQ method (from -1 to INT_MAX)
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. (from -1 to FLT_MAX)
-psy <int> E..V.. Use psychovisual optimizations. (from -1 to 1)
-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 (from -1 to INT_MAX)
-weightb <int> E..V.. Weighted prediction for B-frames. (from -1 to 1)
-weightp <int> E..V.. Weighted prediction analysis method. (from -1 to INT_MAX)
none E..V..
simple E..V..
smart E..V..
-ssim <int> E..V.. Calculate and print SSIM stats. (from -1 to 1)
-intra-refresh <int> E..V.. Use Periodic Intra Refresh instead of IDR frames. (from -1 to 1)
-b-bias <int> E..V.. Influences how often B-frames are used (from INT_MIN to INT_MAX)
-b-pyramid <int> E..V.. Keep some B-frames as references. (from -1 to INT_MAX)
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 (from -1 to 1)
-8x8dct <int> E..V.. High profile 8x8 transform. (from -1 to 1)
-fast-pskip <int> E..V.. (from -1 to 1)
-aud <int> E..V.. Use access unit delimiters. (from -1 to 1)
-mbtree <int> E..V.. Use macroblock tree ratecontrol. (from -1 to 1)
-deblock <string> E..V.. Loop filter parameters, in <alpha:beta> form.
-cplxblur <float> E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX)
-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 (from -1 to INT_MAX)
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 (from -1 to INT_MAX)
-stats <string> E..V.. Filename for 2 pass stats
-nal-hrd <int> E..V.. Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT_MAX)
none E..V..
vbr E..V..
cbr E..V..
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 (from 0 to 1)
-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 (from -1 to FLT_MAX)
-crf_max <float> E..V.. In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT_MAX)
-qp <int> E..V.. Constant quantization parameter rate control method (from -1 to INT_MAX)
-aq-mode <int> E..V.. AQ method (from -1 to INT_MAX)
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. (from -1 to FLT_MAX)
-psy <int> E..V.. Use psychovisual optimizations. (from -1 to 1)
-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 (from -1 to INT_MAX)
-weightb <int> E..V.. Weighted prediction for B-frames. (from -1 to 1)
-weightp <int> E..V.. Weighted prediction analysis method. (from -1 to INT_MAX)
none E..V..
simple E..V..
smart E..V..
-ssim <int> E..V.. Calculate and print SSIM stats. (from -1 to 1)
-intra-refresh <int> E..V.. Use Periodic Intra Refresh instead of IDR frames. (from -1 to 1)
-b-bias <int> E..V.. Influences how often B-frames are used (from INT_MIN to INT_MAX)
-b-pyramid <int> E..V.. Keep some B-frames as references. (from -1 to INT_MAX)
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 (from -1 to 1)
-8x8dct <int> E..V.. High profile 8x8 transform. (from -1 to 1)
-fast-pskip <int> E..V.. (from -1 to 1)
-aud <int> E..V.. Use access unit delimiters. (from -1 to 1)
-mbtree <int> E..V.. Use macroblock tree ratecontrol. (from -1 to 1)
-deblock <string> E..V.. Loop filter parameters, in <alpha:beta> form.
-cplxblur <float> E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX)
-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 (from -1 to INT_MAX)
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 (from -1 to INT_MAX)
-stats <string> E..V.. Filename for 2 pass stats
-nal-hrd <int> E..V.. Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT_MAX)
none E..V..
vbr E..V..
cbr E..V..
libxavs AVOptions:
-crf <float> E..V.. Select the quality for constant quality mode (from -1 to FLT_MAX)
-qp <int> E..V.. Constant quantization parameter rate control method (from -1 to INT_MAX)
-b-bias <int> E..V.. Influences how often B-frames are used (from INT_MIN to INT_MAX)
-cplxblur <float> E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX)
-direct-pred <int> E..V.. Direct MV prediction mode (from -1 to INT_MAX)
none E..V..
spatial E..V..
temporal E..V..
auto E..V..
-aud <int> E..V.. Use access unit delimiters. (from -1 to 1)
-mbtree <int> E..V.. Use macroblock tree ratecontrol. (from -1 to 1)
-mixed-refs <int> E..V.. One reference per partition, as opposed to one reference per macroblock (from -1 to 1)
-fast-pskip <int> E..V.. (from -1 to 1)
AVFormatContext AVOptions:
-avioflags <flags> ED....
direct ED.... reduce buffering
-probesize <int> .D.... set probing size (from 32 to INT_MAX)
-packetsize <int> E..... set packet size (from 0 to INT_MAX)
-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
nobuffer .D.... reduce the latency introduced by optional buffering
-analyzeduration <int> .D.... specify how many microseconds are analyzed to probe the input (from 0 to INT_MAX)
-cryptokey <binary> .D.... decryption key
-indexmem <int> .D.... max memory used for timestamp index (per stream) (from 0 to INT_MAX)
-rtbufsize <int> .D.... max memory used for buffering real-time frames (from 0 to INT_MAX)
-fdebug <flags> ED.... print specific debug info
ts ED....
-max_delay <int> ED.... maximum muxing or demuxing delay in microseconds (from -1 to INT_MAX)
-fpsprobesize <int> .D.... number of frames used to probe fps (from -1 to 2.14748e+009)
-audio_preload <int> E..... microseconds by which audio packets should be interleaved earlier (from 0 to 2.14748e+009)
-chunk_duration <int> E..... microseconds for each chunk (from 0 to 2.14748e+009)
-chunk_size <int> E..... size in bytes for each chunk (from 0 to 2.14748e+009)
-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
-use_wallclock_as_timestamps <int> .D.... use wallclock as timestamps (from 0 to 2.14748e+009)
-avoid_negative_ts <int> E..... shift timestamps to make them positive. 1 enables, 0 disables, default of -1 enables when required by target format. (from -1 to 1)
-skip_initial_bytes <int> .D.... skip initial bytes (from 0 to 2.14748e+009)
-correct_ts_overflow <int> .D.... correct single timestamp overflows (from 0 to 1)
AVIOContext AVOptions:
URLContext AVOptions:
bluray AVOptions:
-playlist <int> .D.... (from -1 to 99999)
-angle <int> .D.... (from 0 to 254)
-chapter <int> .D.... (from 1 to 65534)
crypto AVOptions:
-key <binary> .D.... AES decryption key
-iv <binary> .D.... AES decryption initialization vector
file AVOptions:
-truncate <int> E..... Truncate existing files on write (from 0 to 1)
http AVOptions:
-seekable <int> .D.... control seekability of connection (from -1 to 1)
-chunked_post <int> E..... use chunked transfer-encoding for posts (from 0 to 1)
-headers <string> ED.... set custom HTTP headers, can override built in default headers
-content_type <string> ED.... force a content type
-user-agent <string> .D.... override User-Agent header
-multiple_requests <int> ED.... use persistent connections (from 0 to 1)
-post_data <binary> ED.... set custom HTTP post data
-timeout <int> ED.... set timeout of socket I/O operations (from -1 to INT_MAX)
https AVOptions:
-seekable <int> .D.... control seekability of connection (from -1 to 1)
-chunked_post <int> E..... use chunked transfer-encoding for posts (from 0 to 1)
-headers <string> ED.... set custom HTTP headers, can override built in default headers
-content_type <string> ED.... force a content type
-user-agent <string> .D.... override User-Agent header
-multiple_requests <int> ED.... use persistent connections (from 0 to 1)
-post_data <binary> ED.... set custom HTTP post data
-timeout <int> ED.... set timeout of socket I/O operations (from -1 to INT_MAX)
srtp AVOptions:
-srtp_out_suite <string> E.....
-srtp_out_params <string> E.....
-srtp_in_suite <string> E.....
-srtp_in_params <string> E.....
tcp AVOptions:
-listen <int> ED.... listen on port instead of connecting (from 0 to 1)
-timeout <int> ED.... timeout of socket i/o operations (from 0 to INT_MAX)
-listen_timeout <int> ED.... connection awaiting timeout (from -1 to INT_MAX)
udp AVOptions:
-buffer_size <int> ED.... Socket buffer size in bytes (from 0 to INT_MAX)
-localport <int> ED.... Set local port to bind to (from 0 to INT_MAX)
-localaddr <string> ED.... Choose local IP address
-pkt_size <int> ED.... Set size of UDP packets (from 0 to INT_MAX)
-reuse <int> ED.... Explicitly allow or disallow reusing UDP sockets (from 0 to 1)
-ttl <int> E..... Set the time to live value (for multicast only) (from 0 to INT_MAX)
-connect <int> ED.... Should connect() be called on socket (from 0 to 1)
-fifo_size <int> .D.... Set the UDP receiving circular buffer size, expressed as a number of packets with size of 188 bytes (from 0 to INT_MAX)
-overrun_nonfatal <int> .D.... Survive in case of UDP receiving circular buffer overrun (from 0 to 1)
-timeout <int> .D.... In read mode: if no data arrived in more than this time interval, raise error (from 0 to INT_MAX)
librtmp protocol AVOptions:
-rtmp_app <string> ED.... Name of application to connect to on the RTMP server
-rtmp_playpath <string> ED.... Stream identifier to play or to publish
librtmpe protocol AVOptions:
-rtmp_app <string> ED.... Name of application to connect to on the RTMP server
-rtmp_playpath <string> ED.... Stream identifier to play or to publish
librtmps protocol AVOptions:
-rtmp_app <string> ED.... Name of application to connect to on the RTMP server
-rtmp_playpath <string> ED.... Stream identifier to play or to publish
librtmpt protocol AVOptions:
-rtmp_app <string> ED.... Name of application to connect to on the RTMP server
-rtmp_playpath <string> ED.... Stream identifier to play or to publish
librtmpte protocol AVOptions:
-rtmp_app <string> ED.... Name of application to connect to on the RTMP server
-rtmp_playpath <string> ED.... Stream identifier to play or to publish
dshow indev AVOptions:
-video_size <image_size> .D.... set video size given a string such as 640x480 or hd720.
-pixel_format <pix_fmt> .D.... set video pixel format
-framerate <string> .D.... set video frame rate
-sample_rate <int> .D.... set audio sample rate (from 0 to INT_MAX)
-sample_size <int> .D.... set audio sample size (from 0 to 16)
-channels <int> .D.... set number of audio channels, such as 1 or 2 (from 0 to INT_MAX)
-list_devices <int> .D.... list available devices (from 0 to 1)
true .D....
false .D....
-list_options <int> .D.... list available options for specified device (from 0 to 1)
true .D....
false .D....
-video_device_number <int> .D.... set video device number for devices with same name (starts at 0) (from 0 to INT_MAX)
-audio_device_number <int> .D.... set audio device number for devices with same name (starts at 0) (from 0 to INT_MAX)
-audio_buffer_size <int> .D.... set audio device buffer latency size in milliseconds (default is the device's default) (from 0 to INT_MAX)
lavfi indev AVOptions:
-graph <string> .D.... set libavfilter graph
-graph_file <string> .D.... set libavfilter graph filename
-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) (from 1 to INT_MAX)
-video_size <string> .D.... set video size, such as 640x480 or hd720.
-framerate <string> .D.... set framerate (frames per second)
aqtdec AVOptions:
-subfps <rational> .D...S set the movie frame rate (from 0 to INT_MAX)
asf demuxer AVOptions:
-no_resync_search <int> .D.... Don't try to resynchronize by looking for a certain optional start code (from 0 to 1)
avi AVOptions:
-use_odml <int> .D.... use odml index (from -1 to 1)
Binary text demuxer AVOptions:
-linespeed <int> .D.... set simulated line speed (bytes per second) (from 1 to INT_MAX)
-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.... (from 1 to INT_MAX)
-framerate <string> .D....
dirac demuxer AVOptions:
-framerate <string> .D....
dnxhd demuxer AVOptions:
-framerate <string> .D....
flvdec AVOptions:
-flv_metadata <int> .D.V.. Allocate streams according the onMetaData array (from 0 to 1)
g729 demuxer AVOptions:
-bit_rate <int> .D.... (from 0 to INT_MAX)
GIF demuxer AVOptions:
-min_delay <int> .D.... minimum valid delay between frames (in hundredths of second) (from 0 to 6000)
-default_delay <int> .D.... default delay between frames (in hundredths of second) (from 0 to 6000)
gsm demuxer AVOptions:
-sample_rate <int> .D.... (from 1 to 6.50753e+007)
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) (from 1 to INT_MAX)
-video_size <string> .D.... set video size, such as 640x480 or hd720.
-framerate <string> .D.... set framerate (frames per second)
image2 demuxer AVOptions:
-framerate <string> .D.... set the video framerate
-loop <int> .D.... force loop over input file sequence (from 0 to 1)
-pattern_type <int> .D.... set pattern type (from 0 to INT_MAX)
glob_sequence .D.... glob/sequence pattern type
glob .D.... glob pattern type
sequence .D.... glob pattern type
-pixel_format <string> .D.... set video pixel format
-start_number <int> .D.... set first number in the sequence (from 0 to INT_MAX)
-start_number_range <int> .D.... set range for looking at the first sequence number (from 1 to INT_MAX)
-video_size <string> .D.... set video size
-frame_size <int> .D.... force frame size in bytes (from 0 to INT_MAX)
image2pipe demuxer AVOptions:
-framerate <string> .D.... set the video framerate
-loop <int> .D.... force loop over input file sequence (from 0 to 1)
-pattern_type <int> .D.... set pattern type (from 0 to INT_MAX)
glob_sequence .D.... glob/sequence pattern type
glob .D.... glob pattern type
sequence .D.... glob pattern type
-pixel_format <string> .D.... set video pixel format
-start_number <int> .D.... set first number in the sequence (from 0 to INT_MAX)
-start_number_range <int> .D.... set range for looking at the first sequence number (from 1 to INT_MAX)
-video_size <string> .D.... set video size
-frame_size <int> .D.... force frame size in bytes (from 0 to INT_MAX)
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> .D.V.. allow using absolute path when opening alias, this is a possible security issue (from 0 to 1)
-ignore_editlist <int> .D.V.. (from 0 to 1)
mpegtsraw demuxer AVOptions:
-compute_pcr <int> .D.... Compute exact PCR for each transport stream packet. (from 0 to 1)
mpegvideo demuxer AVOptions:
-framerate <string> .D....
alaw demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
mulaw demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
f64be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
f64le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
f32be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
f32le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s32be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s32le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s24be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s24le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s16be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s16le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
s8 demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u32be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u32le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u24be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u24le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u16be demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u16le demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
u8 demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-channels <int> .D.... (from 0 to INT_MAX)
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
listen .D.... Wait for incoming connections
-reorder_queue_size <int> .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT_MAX)
RTSP demuxer AVOptions:
-initial_pause <int> .D.... Don't start playing the stream immediately (from 0 to 1)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-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
listen .D.... Wait for incoming connections
-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 (from 0 to 65535)
-max_port <int> ED.... Maximum local UDP port (from 0 to 65535)
-timeout <int> .D.... Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen (from INT_MIN to INT_MAX)
-reorder_queue_size <int> .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT_MAX)
sbg_demuxer AVOptions:
-sample_rate <int> .D.... (from 0 to INT_MAX)
-frame_size <int> .D.... (from 0 to INT_MAX)
-max_file_size <int> .D.... (from 0 to INT_MAX)
SDP demuxer AVOptions:
-sdp_flags <flags> .D.... SDP flags
filter_src .D.... Only receive packets from the negotiated peer IP
listen .D.... Wait for incoming connections
custom_io .D.... Use custom IO
-allowed_media_types <flags> .D.... Media types to accept from the server
video .D.... Video
audio .D.... Audio
data .D.... Data
-reorder_queue_size <int> .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT_MAX)
tedcaptions_demuxer AVOptions:
-start_time <int64> .D...S set the start time (offset) of the subtitles, in ms (from I64_MIN to I64_MAX)
TTY demuxer AVOptions:
-chars_per_frame <int> .D.... (from 1 to INT_MAX)
-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 (from 0 to 1)
eXtended BINary text (XBIN) demuxer AVOptions:
-linespeed <int> .D.... set simulated line speed (bytes per second) (from 1 to INT_MAX)
-video_size <string> .D.... set video size, such as 640x480 or hd720.
-framerate <string> .D.... set framerate (frames per second)
caca_outdev AVOptions:
-window_size <image_size> E..... set window forced size
-window_title <string> E..... set window title
-driver <string> E..... set display driver
-algorithm <string> E..... set dithering algorithm
-antialias <string> E..... set antialias method
-charset <string> E..... set charset used to render output
-color <string> E..... set color used to render output
-list_drivers <int> E..... list available drivers (from 0 to 1)
true E.....
false E.....
-list_dither <string> E..... list available dither options
algorithms E.....
antialiases E.....
charsets E.....
colors E.....
sdl outdev AVOptions:
-window_title <string> E..... set SDL window title
-icon_title <string> E..... set SDL iconified window title
-window_size <image_size> E..... set SDL window forced size
AST muxer AVOptions:
-loopstart <int64> E..... Loopstart position in milliseconds. (from -1 to INT_MAX)
-loopend <int64> E..... Loopend position in milliseconds. (from 0 to INT_MAX)
f4v 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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
GIF muxer AVOptions:
-loop <int> E..... Number of times to loop the output. (from 0 to 65535)
hls muxer AVOptions:
-start_number <int64> E..... set first number in the sequence (from 0 to I64_MAX)
-hls_time <float> E..... set segment length in seconds (from 0 to FLT_MAX)
-hls_list_size <int> E..... set maximum number of playlist entries (from 0 to INT_MAX)
-hls_wrap <int> E..... set number after which the index wraps (from 0 to INT_MAX)
image2 muxer AVOptions:
-updatefirst <int> E..... (from 0 to 1)
-start_number <int> E..... first number in the sequence (from 1 to INT_MAX)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
LATM/LOAS muxer AVOptions:
-smc-interval <int> E..... StreamMuxConfig interval. (from 1 to 65535)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
MP3 muxer AVOptions:
-id3v2_version <int> E..... Select ID3v2 version to write. Currently 3 and 4 are supported. (from 3 to 4)
-write_id3v1 <int> E..... Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software. (from 0 to 1)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
mpeg muxer AVOptions:
-muxrate <int> E..... (from 0 to INT_MAX)
-preload <int> E..... Initial demux-decode delay in microseconds. (from 0 to INT_MAX)
vcd muxer AVOptions:
-muxrate <int> E..... (from 0 to INT_MAX)
-preload <int> E..... Initial demux-decode delay in microseconds. (from 0 to INT_MAX)
dvd muxer AVOptions:
-muxrate <int> E..... (from 0 to INT_MAX)
-preload <int> E..... Initial demux-decode delay in microseconds. (from 0 to INT_MAX)
svcd muxer AVOptions:
-muxrate <int> E..... (from 0 to INT_MAX)
-preload <int> E..... Initial demux-decode delay in microseconds. (from 0 to INT_MAX)
vob muxer AVOptions:
-muxrate <int> E..... (from 0 to INT_MAX)
-preload <int> E..... Initial demux-decode delay in microseconds. (from 0 to INT_MAX)
MPEGTS muxer AVOptions:
-mpegts_transport_stream_id <int> E..... Set transport_stream_id field. (from 1 to 65535)
-mpegts_original_network_id <int> E..... Set original_network_id field. (from 1 to 65535)
-mpegts_service_id <int> E..... Set service_id field. (from 1 to 65535)
-mpegts_pmt_start_pid <int> E..... Set the first pid of the PMT. (from 16 to 7936)
-mpegts_start_pid <int> E..... Set the first pid. (from 256 to 3840)
-mpegts_m2ts_mode <int> E..... Enable m2ts mode. (from -1 to 1)
-muxrate <int> E..... (from 0 to INT_MAX)
-pes_payload_size <int> E..... Minimum PES packet payload in bytes (from 0 to INT_MAX)
-mpegts_flags <flags> E..... MPEG-TS muxing flags
resend_headers E..... Reemit PAT/PMT before writing the next packet
latm E..... Use LATM packetization for AAC
-resend_headers <int> E..... Reemit PAT/PMT before writing the next packet (from 0 to INT_MAX)
-mpegts_copyts <int> E..... dont offset dts/pts (from -1 to 1)
Ogg muxer AVOptions:
-oggpagesize <int> E..... Set preferred Ogg page size. (from 0 to 65025)
-pagesize <int> E..... preferred page size in bytes (deprecated) (from 0 to 65025)
-page_duration <int> E..... preferred page duration, in microseconds (from 0 to I64_MAX)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
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
h264_mode0 E..... Use mode 0 for H264 in RTP
-payload_type <int> E..... Specify RTP payload type (from -1 to 127)
-ssrc <int> E..... Stream identifier (from INT_MIN to INT_MAX)
-cname <string> E..... CNAME to include in RTCP SR packets
RTSP muxer AVOptions:
-initial_pause <int> .D.... Don't start playing the stream immediately (from 0 to 1)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-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
listen .D.... Wait for incoming connections
-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 (from 0 to 65535)
-max_port <int> ED.... Maximum local UDP port (from 0 to 65535)
-timeout <int> .D.... Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen (from INT_MIN to INT_MAX)
-reorder_queue_size <int> .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT_MAX)
segment muxer AVOptions:
-reference_stream <string> E..... set reference stream
-segment_format <string> E..... set container format used for the segments
-segment_list <string> E..... set the segment list filename
-segment_list_flags <flags> E..... set flags affecting segment list generation
cache E..... allow list caching
live E..... enable live-friendly list generation (useful for HLS)
-segment_list_size <int> E..... set the maximum number of playlist entries (from 0 to INT_MAX)
-segment_list_type <int> E..... set the segment list type (from -1 to 3)
flat E..... flat format
csv E..... csv format
ext E..... extended format
m3u8 E..... M3U8 format
hls E..... Apple HTTP Live Streaming compatible
-segment_time <string> E..... set segment duration
-segment_time_delta <string> E..... set approximation value used for the segment times
-segment_times <string> E..... set segment split time points
-segment_frames <string> E..... set segment split frame numbers
-segment_wrap <int> E..... set number after which the index wraps (from 0 to INT_MAX)
-segment_start_number <int> E..... set the sequence number of the first segment (from 0 to INT_MAX)
-individual_header_trailer <int> E..... write header/trailer to each segment (from 0 to 1)
-write_header_trailer <int> E..... write a header to the first segment and a trailer to the last one (from 0 to 1)
-reset_timestamps <int> E..... reset timestamps at the begin of each segment (from 0 to 1)
stream_segment muxer AVOptions:
-reference_stream <string> E..... set reference stream
-segment_format <string> E..... set container format used for the segments
-segment_list <string> E..... set the segment list filename
-segment_list_flags <flags> E..... set flags affecting segment list generation
cache E..... allow list caching
live E..... enable live-friendly list generation (useful for HLS)
-segment_list_size <int> E..... set the maximum number of playlist entries (from 0 to INT_MAX)
-segment_list_type <int> E..... set the segment list type (from -1 to 3)
flat E..... flat format
csv E..... csv format
ext E..... extended format
m3u8 E..... M3U8 format
hls E..... Apple HTTP Live Streaming compatible
-segment_time <string> E..... set segment duration
-segment_time_delta <string> E..... set approximation value used for the segment times
-segment_times <string> E..... set segment split time points
-segment_frames <string> E..... set segment split frame numbers
-segment_wrap <int> E..... set number after which the index wraps (from 0 to INT_MAX)
-segment_start_number <int> E..... set the sequence number of the first segment (from 0 to INT_MAX)
-individual_header_trailer <int> E..... write header/trailer to each segment (from 0 to 1)
-write_header_trailer <int> E..... write a header to the first segment and a trailer to the last one (from 0 to 1)
-reset_timestamps <int> E..... reset timestamps at the begin of each segment (from 0 to 1)
smooth streaming muxer AVOptions:
-window_size <int> E..... number of fragments kept in the manifest (from 0 to INT_MAX)
-extra_window_size <int> E..... number of fragments kept outside of the manifest before removing from disk (from 0 to INT_MAX)
-lookahead_count <int> E..... number of lookahead fragments (from 0 to INT_MAX)
-min_frag_duration <int64> E..... minimum fragment duration (in microseconds) (from 0 to INT_MAX)
-remove_at_exit <int> E..... remove all fragments when finished (from 0 to 1)
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) (from 0 to 768000)
-dtshd_fallback_time <int> E..... min secs to strip HD for after an overflow (-1: till the end, default 60) (from -1 to INT_MAX)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
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)
faststart E..... Run a second pass to put the moov at the beginning of the file
-moov_size <int> E..... maximum moov size so it can be placed at the begin (from 0 to INT_MAX)
-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
h264_mode0 E..... Use mode 0 for H264 in RTP
-skip_iods <int> E..... Skip writing iods atom. (from 0 to 1)
-iods_audio_profile <int> E..... iods audio profile atom. (from -1 to 255)
-iods_video_profile <int> E..... iods video profile atom. (from -1 to 255)
-frag_duration <int> E..... Maximum fragment duration (from 0 to INT_MAX)
-min_frag_duration <int> E..... Minimum fragment duration (from 0 to INT_MAX)
-frag_size <int> E..... Maximum fragment size (from 0 to INT_MAX)
-ism_lookahead <int> E..... Number of lookahead entries for ISM files (from 0 to INT_MAX)
-use_editlist <int> E..... use edit list (from -1 to 1)
WAV muxer AVOptions:
-write_bext <int> E..... Write BEXT chunk. (from 0 to 1)
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..
error_diffusion E..V.. error diffusion dither
-srcw <int> E..V.. source width (from 1 to INT_MAX)
-srch <int> E..V.. source height (from 1 to INT_MAX)
-dstw <int> E..V.. destination width (from 1 to INT_MAX)
-dsth <int> E..V.. destination height (from 1 to INT_MAX)
-src_format <int> E..V.. source format (from 0 to 316)
-dst_format <int> E..V.. destination format (from 0 to 316)
-src_range <int> E..V.. source range (from 0 to 1)
-dst_range <int> E..V.. destination range (from 0 to 1)
-param0 <double> E..V.. scaler param 0 (from INT_MIN to INT_MAX)
-param1 <double> E..V.. scaler param 1 (from INT_MIN to INT_MAX)
SWResampler AVOptions:
-ich <int> ....A. set input channel count (from 0 to 32)
-in_channel_count <int> ....A. set input channel count (from 0 to 32)
-och <int> ....A. set output channel count (from 0 to 32)
-out_channel_count <int> ....A. set output channel count (from 0 to 32)
-uch <int> ....A. set used channel count (from 0 to 32)
-used_channel_count <int> ....A. set used channel count (from 0 to 32)
-isr <int> ....A. set input sample rate (from 0 to INT_MAX)
-in_sample_rate <int> ....A. set input sample rate (from 0 to INT_MAX)
-osr <int> ....A. set output sample rate (from 0 to INT_MAX)
-out_sample_rate <int> ....A. set output sample rate (from 0 to INT_MAX)
-isf <sample_fmt> ....A. set input sample format
-in_sample_fmt <sample_fmt> ....A. set input sample format
-osf <sample_fmt> ....A. set output sample format
-out_sample_fmt <sample_fmt> ....A. set output sample format
-tsf <sample_fmt> ....A. set internal sample format
-internal_sample_fmt <sample_fmt> ....A. set internal sample format
-icl <int64> ....A. set input channel layout (from 0 to I64_MAX)
-in_channel_layout <int64> ....A. set input channel layout (from 0 to I64_MAX)
-ocl <int64> ....A. set output channel layout (from 0 to I64_MAX)
-out_channel_layout <int64> ....A. set output channel layout (from 0 to I64_MAX)
-clev <float> ....A. set center mix level (from -32 to 32)
-center_mix_level <float> ....A. set center mix level (from -32 to 32)
-slev <float> ....A. set surround mix level (from -32 to 32)
-surround_mix_level <float> ....A. set surround mix Level (from -32 to 32)
-lfe_mix_level <float> ....A. set LFE mix level (from -32 to 32)
-rmvol <float> ....A. set rematrix volume (from -1000 to 1000)
-rematrix_volume <float> ....A. set rematrix volume (from -1000 to 1000)
-flags <flags> ....A. set flags
res ....A. force resampling
-swr_flags <flags> ....A. set flags
res ....A. force resampling
-dither_scale <float> ....A. set dither scale (from 0 to INT_MAX)
-dither_method <int> ....A. set dither method (from 0 to 71)
rectangular ....A. select rectangular dither
triangular ....A. select triangular dither
triangular_hp ....A. select triangular dither with high pass
lipshitz ....A. select lipshitz noise shaping dither
shibata ....A. select shibata noise shaping dither
low_shibata ....A. select low shibata noise shaping dither
high_shibata ....A. select high shibata noise shaping dither
f_weighted ....A. select f-weighted noise shaping dither
modified_e_weighted ....A. select modified-e-weighted noise shaping dither
improved_e_weighted ....A. select improved-e-weighted noise shaping dither
-filter_size <int> ....A. set swr resampling filter size (from 0 to INT_MAX)
-phase_shift <int> ....A. set swr resampling phase shift (from 0 to 30)
-linear_interp <int> ....A. enable linear interpolation (from 0 to 1)
-cutoff <double> ....A. set cutoff frequency ratio (from 0 to 1)
-resampler <int> ....A. set resampling Engine (from 0 to 1)
swr ....A. select SW Resampler
soxr ....A. select SoX Resampler
-precision <double> ....A. set soxr resampling precision (in bits) (from 15 to 33)
-cheby <int> ....A. enable soxr Chebyshev passband & higher-precision irrational ratio approximation (from 0 to 1)
-min_comp <float> ....A. set minimum difference between timestamps and audio data (in seconds) below which no timestamp compensation of either kind is applied (from 0 to FLT_MAX)
-min_hard_comp <float> ....A. set minimum difference between timestamps and audio data (in seconds) to trigger padding/trimming the data. (from 0 to INT_MAX)
-comp_duration <float> ....A. set duration (in seconds) over which data is stretched/squeezed to make it match the timestamps. (from 0 to INT_MAX)
-max_soft_comp <float> ....A. set maximum factor by which data is stretched/squeezed to make it match the timestamps. (from INT_MIN to INT_MAX)
-async <float> ....A. simplified 1 parameter audio timestamp matching, 0(disabled), 1(filling and trimming), >1(maximum stretch/squeeze in samples per second) (from INT_MIN to INT_MAX)
-matrix_encoding <int> ....A. set matrixed stereo encoding (from 0 to 2)
none ....A. select none
dolby ....A. select Dolby
dplii ....A. select Dolby Pro Logic II
-filter_type <int> ....A. select swr filter type (from 0 to 2)
cubic ....A. select cubic
blackman_nuttall ....A. select Blackman Nuttall Windowed Sinc
kaiser ....A. select Kaiser Windowed Sinc
-kaiser_beta <int> ....A. set swr Kaiser Window Beta (from 2 to 16)
aformat AVOptions:
-sample_fmts <string> ..F.A. A comma-separated list of sample formats.
-sample_rates <string> ..F.A. A comma-separated list of sample rates.
-channel_layouts <string> ..F.A. A comma-separated list of channel layouts.
amerge AVOptions:
-inputs <int> ..F.A. specify the number of inputs (from 2 to 32)
amix AVOptions:
-inputs <int> ..F.A. Number of inputs. (from 1 to 32)
-duration <int> ..F.A. How to determine the end-of-stream. (from 0 to 2)
longest ..F.A. Duration of longest input.
shortest ..F.A. Duration of shortest input.
first ..F.A. Duration of first input.
-dropout_transition <float> ..F.A. Transition time, in seconds, for volume renormalization when an input stream ends. (from 0 to INT_MAX)
apad AVOptions:
-packet_size <int> ..F.A. set silence packet size (from 0 to INT_MAX)
-pad_len <int64> ..F.A. number of samples of silence to add (from 0 to I64_MAX)
-whole_len <int64> ..F.A. target number of samples in the audio stream (from 0 to I64_MAX)
aselect AVOptions:
-expr <string> ..F... set selection expression
-e <string> ..F... set selection expression
asendcmd AVOptions:
-commands <string> ..F... set commands
-c <string> ..F... set commands
-filename <string> ..F... set commands file
-f <string> ..F... set commands file
asetnsamples AVOptions:
-pad <int> ..F.A. pad last frame with zeros (from 0 to 1)
-p <int> ..F.A. pad last frame with zeros (from 0 to 1)
-nb_out_samples <int> ..F.A. set the number of per-frame output samples (from 1 to INT_MAX)
-n <int> ..F.A. set the number of per-frame output samples (from 1 to INT_MAX)
channel map filter AVOptions:
-map <string> ..F.A. A comma-separated list of input channel numbers in output order.
-channel_layout <string> ..F.A. Output channel layout.
channelsplit AVOptions:
-channel_layout <string> ..F.A. Input channel layout.
ebur128 AVOptions:
-video <int> ..FV.. set video output (from 0 to 1)
-size <image_size> ..FV.. set video size
-meter <int> ..FV.. set scale meter (+9 to +18) (from 9 to 18)
join filter AVOptions:
-inputs <int> ..F.A. Number of input streams. (from 1 to INT_MAX)
-channel_layout <string> ..F.A. Channel layout of the output stream.
-map <string> ..F.A. A comma-separated list of channels maps in the format 'input_stream.input_channel-output_channel.
silencedetect AVOptions:
-n <double> ..F.A. set noise tolerance (from 0 to 1.79769e+308)
-noise <double> ..F.A. set noise tolerance (from 0 to 1.79769e+308)
-d <double> ..F.A. set minimum duration in seconds (from 0 to 86400)
-duration <double> ..F.A. set minimum duration in seconds (from 0 to 86400)
volume AVOptions:
-volume <double> ..F.A. set volume adjustment (from 0 to 8.38861e+006)
-precision <int> ..F.A. select mathematical precision (from 0 to 2)
fixed ..F.A. select 8-bit fixed-point
float ..F.A. select 32-bit floating-point
double ..F.A. select 64-bit floating-point
aevalsrc AVOptions:
-nb_samples <int> ..F.A. set the number of samples per requested frame (from 0 to INT_MAX)
-n <int> ..F.A. set the number of samples per requested frame (from 0 to INT_MAX)
-sample_rate <string> ..F.A. set the sample rate
-s <string> ..F.A. set the sample rate
-duration <string> ..F.A. set audio duration
-d <string> ..F.A. set audio duration
-channel_layout <string> ..F.A. set channel layout
-c <string> ..F.A. set channel layout
anullsrc AVOptions:
-channel_layout <string> ..F.A. set channel_layout
-cl <string> ..F.A. set channel_layout
-sample_rate <string> ..F.A. set sample rate
-r <string> ..F.A. set sample rate
-nb_samples <int> ..F.A. set the number of samples per requested frame (from 0 to INT_MAX)
-n <int> ..F.A. set the number of samples per requested frame (from 0 to INT_MAX)
ass AVOptions:
-filename <string> ..FV.. set the filename of file to read
-f <string> ..FV.. set the filename of file to read
-original_size <image_size> ..FV.. set the size of the original video (used to scale fonts)
blackdetect AVOptions:
-d <double> ..FV.. set minimum detected black duration in seconds (from 0 to 1.79769e+308)
-black_min_duration <double> ..FV.. set minimum detected black duration in seconds (from 0 to 1.79769e+308)
-picture_black_ratio_th <double> ..FV.. set the picture black ratio threshold (from 0 to 1)
-pic_th <double> ..FV.. set the picture black ratio threshold (from 0 to 1)
-pixel_black_th <double> ..FV.. set the pixel black threshold (from 0 to 1)
-pix_th <double> ..FV.. set the pixel black threshold (from 0 to 1)
crop AVOptions:
-x <string> ..FV.. set the x crop area expression
-y <string> ..FV.. set the y crop area expression
-out_w <string> ..FV.. set the width crop area expression
-w <string> ..FV.. set the width crop area expression
-out_h <string> ..FV.. set the height crop area expression
-h <string> ..FV.. set the height crop area expression
-keep_aspect <int> ..FV.. force packed RGB in input and output (from 0 to 1)
delogo AVOptions:
-x <int> ..FV.. set logo x position (from -1 to INT_MAX)
-y <int> ..FV.. set logo y position (from -1 to INT_MAX)
-w <int> ..FV.. set logo width (from -1 to INT_MAX)
-h <int> ..FV.. set logo height (from -1 to INT_MAX)
-band <int> ..FV.. set delogo area band size (from -1 to INT_MAX)
-t <int> ..FV.. set delogo area band size (from -1 to INT_MAX)
-show <int> ..FV.. show delogo area (from 0 to 1)
drawbox AVOptions:
-x <int> ..FV.. set the box top-left corner x position (from INT_MIN to INT_MAX)
-y <int> ..FV.. set the box top-left corner y position (from INT_MIN to INT_MAX)
-width <int> ..FV.. set the box width (from 0 to INT_MAX)
-w <int> ..FV.. set the box width (from 0 to INT_MAX)
-height <int> ..FV.. set the box height (from 0 to INT_MAX)
-h <int> ..FV.. set the box height (from 0 to INT_MAX)
-color <string> ..FV.. set the box edge color
-c <string> ..FV.. set the box edge color
-thickness <int> ..FV.. set the box maximum thickness (from 0 to INT_MAX)
-t <int> ..FV.. set the box maximum thickness (from 0 to INT_MAX)
drawtext AVOptions:
-fontfile <string> ..FV.. set font file
-text <string> ..FV.. set text
-textfile <string> ..FV.. set text file
-fontcolor <string> ..FV.. set foreground color
-boxcolor <string> ..FV.. set box color
-shadowcolor <string> ..FV.. set shadow color
-box <int> ..FV.. set box (from 0 to 1)
-fontsize <int> ..FV.. set font size (from 0 to INT_MAX)
-x <string> ..FV.. set x expression
-y <string> ..FV.. set y expression
-shadowx <int> ..FV.. set x (from INT_MIN to INT_MAX)
-shadowy <int> ..FV.. set y (from INT_MIN to INT_MAX)
-tabsize <int> ..FV.. set tab size (from 0 to INT_MAX)
-basetime <int64> ..FV.. set base time (from I64_MIN to I64_MAX)
-draw <string> ..FV.. if false do not draw
-expansion <int> ..FV.. set the expansion mode (from 0 to 2)
none ..FV.. set no expansion
normal ..FV.. set normal expansion
strftime ..FV.. set strftime expansion (deprecated)
-timecode <string> ..FV.. set initial timecode
-tc24hmax <int> ..FV.. set 24 hours max (timecode only) (from 0 to 1)
-timecode_rate <rational> ..FV.. set rate (timecode only) (from 0 to INT_MAX)
-r <rational> ..FV.. set rate (timecode only) (from 0 to INT_MAX)
-rate <rational> ..FV.. set rate (timecode only) (from 0 to INT_MAX)
-reload <int> ..FV.. reload text file for each frame (from 0 to 1)
-fix_bounds <int> ..FV.. if true, check and fix text coords to avoid clipping (from 0 to 1)
-ft_load_flags <flags> ..FV.. set font loading flags for libfreetype
default ..FV.. set default
no_scale ..FV.. set no_scale
no_hinting ..FV.. set no_hinting
render ..FV.. set render
no_bitmap ..FV.. set no_bitmap
vertical_layout ..FV.. set vertical_layout
force_autohint ..FV.. set force_autohint
crop_bitmap ..FV.. set crop_bitmap
pedantic ..FV.. set pedantic
ignore_global_advance_width ..FV.. set ignore_global_advance_width
no_recurse ..FV.. set no_recurse
ignore_transform ..FV.. set ignore_transform
monochrome ..FV.. set monochrome
linear_design ..FV.. set linear_design
no_autohint ..FV.. set no_autohint
edgedetect AVOptions:
-high <double> ..FV.. set high threshold (from 0 to 1)
-low <double> ..FV.. set low threshold (from 0 to 1)
fade AVOptions:
-type <string> ..FV.. set the fade direction
-t <string> ..FV.. set the fade direction
-start_frame <int> ..FV.. set expression of frame to start fading (from 0 to INT_MAX)
-s <int> ..FV.. set expression of frame to start fading (from 0 to INT_MAX)
-nb_frames <int> ..FV.. set expression for fade duration in frames (from 0 to INT_MAX)
-n <int> ..FV.. set expression for fade duration in frames (from 0 to INT_MAX)
-alpha <int> ..FV.. fade alpha if it is available on the input (from 0 to 1)
field AVOptions:
-type <int> ..FV.. set field type (top or bottom) (from 0 to 1)
top ..FV.. select top field
bottom ..FV.. select bottom field
fps AVOptions:
-fps <string> ..FV.. A string describing desired output framerate
-round <int> ..FV.. set rounding method for timestamps (from 0 to 5)
zero ..FV.. round towards 0
inf ..FV.. round away from 0
down ..FV.. round towards -infty
up ..FV.. round towards +infty
near ..FV.. round to nearest
geq AVOptions:
-lum_expr <string> ..FV.. set luminance expression
-cb_expr <string> ..FV.. set chroma blue expression
-cr_expr <string> ..FV.. set chroma red expression
gradfun AVOptions:
-strength <double> ..FV.. set the maximum amount by which the filter will change any one pixel (from 0.51 to 64)
-radius <int> ..FV.. set the neighborhood to fit the gradient to (from 4 to 32)
histeq AVOptions:
-strength <float> ..FV.. set the strength (from 0 to 1)
-intensity <float> ..FV.. set the intensity (from 0 to 1)
-antibanding <int> ..FV.. set the antibanding level (from 0 to 2)
none ..FV.. apply no antibanding
weak ..FV.. apply weak antibanding
strong ..FV.. apply strong antibanding
hue AVOptions:
-h <string> ..FV.. set the hue angle degrees expression
-H <string> ..FV.. set the hue angle radians expression
-s <string> ..FV.. set the saturation expression
idet AVOptions:
-intl_thres <float> ..FV.. set interlacing threshold (from -1 to FLT_MAX)
-prog_thres <float> ..FV.. set progressive threshold (from -1 to FLT_MAX)
kerndeint AVOptions:
-thresh <int> ..FV.. set the threshold (from 0 to 255)
-map <int> ..FV.. set the map (from 0 to 1)
-order <int> ..FV.. set the order (from 0 to 1)
-sharp <int> ..FV.. enable sharpening (from 0 to 1)
-twoway <int> ..FV.. enable twoway (from 0 to 1)
lut AVOptions:
-c0 <string> ..FV.. set component #0 expression
-c1 <string> ..FV.. set component #1 expression
-c2 <string> ..FV.. set component #2 expression
-c3 <string> ..FV.. set component #3 expression
-y <string> ..FV.. set Y expression
-u <string> ..FV.. set U expression
-v <string> ..FV.. set V expression
-r <string> ..FV.. set R expression
-g <string> ..FV.. set G expression
-b <string> ..FV.. set B expression
-a <string> ..FV.. set A expression
lutrgb AVOptions:
-c0 <string> ..FV.. set component #0 expression
-c1 <string> ..FV.. set component #1 expression
-c2 <string> ..FV.. set component #2 expression
-c3 <string> ..FV.. set component #3 expression
-y <string> ..FV.. set Y expression
-u <string> ..FV.. set U expression
-v <string> ..FV.. set V expression
-r <string> ..FV.. set R expression
-g <string> ..FV.. set G expression
-b <string> ..FV.. set B expression
-a <string> ..FV.. set A expression
lutyuv AVOptions:
-c0 <string> ..FV.. set component #0 expression
-c1 <string> ..FV.. set component #1 expression
-c2 <string> ..FV.. set component #2 expression
-c3 <string> ..FV.. set component #3 expression
-y <string> ..FV.. set Y expression
-u <string> ..FV.. set U expression
-v <string> ..FV.. set V expression
-r <string> ..FV.. set R expression
-g <string> ..FV.. set G expression
-b <string> ..FV.. set B expression
-a <string> ..FV.. set A expression
negate AVOptions:
-c0 <string> ..FV.. set component #0 expression
-c1 <string> ..FV.. set component #1 expression
-c2 <string> ..FV.. set component #2 expression
-c3 <string> ..FV.. set component #3 expression
-y <string> ..FV.. set Y expression
-u <string> ..FV.. set U expression
-v <string> ..FV.. set V expression
-r <string> ..FV.. set R expression
-g <string> ..FV.. set G expression
-b <string> ..FV.. set B expression
-a <string> ..FV.. set A expression
overlay AVOptions:
-x <string> ..FV.. set the x expression
-y <string> ..FV.. set the y expression
-rgb <int> ..FV.. force packed RGB in input and output (from 0 to 1)
scale AVOptions:
-w <string> ..FV.. set width expression
-width <string> ..FV.. set width expression
-h <string> ..FV.. set height expression
-height <string> ..FV.. set height expression
-flags <string> ..FV.. set libswscale flags
-interl <int> ..FV.. set interlacing (from -1 to 1)
select AVOptions:
-expr <string> ..F... set selection expression
-e <string> ..F... set selection expression
sendcmd AVOptions:
-commands <string> ..F... set commands
-c <string> ..F... set commands
-filename <string> ..F... set commands file
-f <string> ..F... set commands file
setdar AVOptions:
-max <int> ..FV.. set max value for nominator or denominator in the ratio (from 1 to INT_MAX)
-ratio <string> ..FV.. set ratio
-r <string> ..FV.. set ratio
setfield AVOptions:
-mode <int> ..FV.. select interlace mode (from -1 to 2)
auto ..FV.. keep the same input field
bff ..FV.. mark as bottom-field-first
tff ..FV.. mark as top-field-first
prog ..FV.. mark as progressive
setsar AVOptions:
-max <int> ..FV.. set max value for nominator or denominator in the ratio (from 1 to INT_MAX)
-ratio <string> ..FV.. set ratio
-r <string> ..FV.. set ratio
subtitles AVOptions:
-filename <string> ..FV.. set the filename of file to read
-f <string> ..FV.. set the filename of file to read
-original_size <image_size> ..FV.. set the size of the original video (used to scale fonts)
tile AVOptions:
-layout <image_size> ..FV.. set grid size
-margin <int> ..FV.. set outer border margin in pixels (from 0 to 1024)
-padding <int> ..FV.. set inner border thickness in pixels (from 0 to 1024)
-nb_frames <int> ..FV.. set maximum number of frame to render (from 0 to INT_MAX)
tinterlace AVOptions:
-mode <int> ..FV.. select interlace mode (from 0 to 6)
merge ..FV.. merge fields
drop_even ..FV.. drop even fields
drop_odd ..FV.. drop odd fields
pad ..FV.. pad alternate lines with black
interleave_top ..FV.. interleave top and bottom fields
interleave_bottom ..FV.. interleave bottom and top fields
interlacex2 ..FV.. interlace fields from two consecutive frames
transpose AVOptions:
-dir <int> ..FV.. set transpose direction (from 0 to 7)
-passthrough <int> ..FV.. do not apply transposition if the input matches the specified geometry (from 0 to INT_MAX)
none ..FV.. always apply transposition
portrait ..FV.. preserve portrait geometry
landscape ..FV.. preserve landscape geometry
yadif AVOptions:
-mode <int> ..FV.. specify the interlacing mode (from 0 to 3)
send_frame ..FV.. send one frame for each frame
send_field ..FV.. send one frame for each field
send_frame_nospatial ..FV.. send one frame for each frame, but skip spatial interlacing check
send_field_nospatial ..FV.. send one frame for each field, but skip spatial interlacing check
-parity <int> ..FV.. specify the assumed picture field parity (from -1 to 1)
tff ..FV.. assume top field first
bff ..FV.. assume bottom field first
auto ..FV.. auto detect parity
-deint <int> ..FV.. specify which frames to deinterlace (from 0 to 1)
all ..FV.. deinterlace all frames
interlaced ..FV.. only deinterlace frames marked as interlaced
cellauto AVOptions:
-filename <string> ..FV.. read initial pattern from file
-f <string> ..FV.. read initial pattern from file
-pattern <string> ..FV.. set initial pattern
-p <string> ..FV.. set initial pattern
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rule <int> ..FV.. set rule (from 0 to 255)
-random_fill_ratio <double> ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)
-ratio <double> ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)
-random_seed <int> ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)
-seed <int> ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)
-scroll <int> ..FV.. scroll pattern downward (from 0 to 1)
-start_full <int> ..FV.. start filling the whole video (from 0 to 1)
-full <int> ..FV.. start filling the whole video (from 0 to 1)
-stitch <int> ..FV.. stitch boundaries (from 0 to 1)
color AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-sar <rational> ..FV.. set video sample aspect ratio (from 0 to INT_MAX)
-color <string> ..FV.. set color
-c <string> ..FV.. set color
-decimals <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
-n <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
life AVOptions:
-filename <string> ..FV.. set source file
-f <string> ..FV.. set source file
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-rule <string> ..FV.. set rule
-random_fill_ratio <double> ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)
-ratio <double> ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)
-random_seed <int> ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)
-seed <int> ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)
-stitch <int> ..FV.. stitch boundaries (from 0 to 1)
-mold <int> ..FV.. set mold speed for dead cells (from 0 to 255)
-life_color <string> ..FV.. set life color
-death_color <string> ..FV.. set death color
-mold_color <string> ..FV.. set mold color
mandelbrot AVOptions:
-size <image_size> ..FV.. set frame size
-s <image_size> ..FV.. set frame size
-rate <string> ..FV.. set frame rate
-r <string> ..FV.. set frame rate
-maxiter <int> ..FV.. set max iterations number (from 1 to INT_MAX)
-start_x <double> ..FV.. set the initial x position (from -100 to 100)
-start_y <double> ..FV.. set the initial y position (from -100 to 100)
-start_scale <double> ..FV.. set the initial scale value (from 0 to FLT_MAX)
-end_scale <double> ..FV.. set the terminal scale value (from 0 to FLT_MAX)
-end_pts <double> ..FV.. set the terminal pts value (from 0 to I64_MAX)
-bailout <double> ..FV.. set the bailout value (from 0 to FLT_MAX)
-outer <int> ..FV.. set outer coloring mode (from 0 to INT_MAX)
iteration_count ..FV.. set iteration count mode
normalized_iteration_count ..FV.. set normalized iteration count mode
-inner <int> ..FV.. set inner coloring mode (from 0 to INT_MAX)
black ..FV.. set black mode
period ..FV.. set period mode
convergence ..FV.. show time until convergence
mincol ..FV.. color based on point closest to the origin of the iterations
mptestsrc AVOptions:
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-test <int> ..FV.. set test to perform (from 0 to INT_MAX)
dc_luma ..FV..
dc_chroma ..FV..
freq_luma ..FV..
freq_chroma ..FV..
amp_luma ..FV..
amp_chroma ..FV..
cbp ..FV..
mv ..FV..
ring1 ..FV..
ring2 ..FV..
all ..FV..
-t <int> ..FV.. set test to perform (from 0 to INT_MAX)
dc_luma ..FV..
dc_chroma ..FV..
freq_luma ..FV..
freq_chroma ..FV..
amp_luma ..FV..
amp_chroma ..FV..
cbp ..FV..
mv ..FV..
ring1 ..FV..
ring2 ..FV..
all ..FV..
nullsrc AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-sar <rational> ..FV.. set video sample aspect ratio (from 0 to INT_MAX)
-color <string> ..FV.. set color
-c <string> ..FV.. set color
-decimals <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
-n <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
rgbtestsrc AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-sar <rational> ..FV.. set video sample aspect ratio (from 0 to INT_MAX)
-color <string> ..FV.. set color
-c <string> ..FV.. set color
-decimals <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
-n <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
smptebars AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-sar <rational> ..FV.. set video sample aspect ratio (from 0 to INT_MAX)
-color <string> ..FV.. set color
-c <string> ..FV.. set color
-decimals <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
-n <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
testsrc AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-duration <string> ..FV.. set video duration
-d <string> ..FV.. set video duration
-sar <rational> ..FV.. set video sample aspect ratio (from 0 to INT_MAX)
-color <string> ..FV.. set color
-c <string> ..FV.. set color
-decimals <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
-n <int> ..FV.. set number of decimals to show (from INT_MIN to INT_MAX)
concat AVOptions:
-n <int> ..FVA. specify the number of segments (from 2 to INT_MAX)
-v <int> ..FV.. specify the number of video streams (from 0 to INT_MAX)
-a <int> ..F.A. specify the number of audio streams (from 0 to INT_MAX)
-unsafe <int> ..F.A. enable unsafe mode (from 0 to INT_MAX)
showspectrum AVOptions:
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-slide <int> ..FV.. set sliding mode (from 0 to 1)
showwaves AVOptions:
-rate <string> ..FV.. set video rate
-r <string> ..FV.. set video rate
-size <image_size> ..FV.. set video size
-s <image_size> ..FV.. set video size
-n <int> ..FV.. set how many samples to show in the same point (from 0 to INT_MAX)
amovie AVOptions:
-format_name <string> ..F... set format name
-f <string> ..F... set format name
-streams <string> ..F... set streams
-s <string> ..F... set streams
-si <int> ..F... set stream index (from -1 to INT_MAX)
-stream_index <int> ..F... set stream index (from -1 to INT_MAX)
-seek_point <double> ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)
-sp <double> ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)
-loop <int> ..F... set loop count (from 0 to INT_MAX)
movie AVOptions:
-format_name <string> ..F... set format name
-f <string> ..F... set format name
-streams <string> ..F... set streams
-s <string> ..F... set streams
-si <int> ..F... set stream index (from -1 to INT_MAX)
-stream_index <int> ..F... set stream index (from -1 to INT_MAX)
-seek_point <double> ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)
-sp <double> ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)
-loop <int> ..F... set loop count (from 0 to INT_MAX)
abuffer AVOptions:
-time_base <rational> ..F.A. (from 0 to INT_MAX)
-sample_rate <int> ..F.A. (from 0 to INT_MAX)
-sample_fmt <string> ..F.A.
-channel_layout <string> ..F.A.
buffer AVOptions:
-time_base <rational> ..FV.. (from 0 to INT_MAX)
-frame_rate <rational> ..FV.. (from 0 to INT_MAX)
-video_size <image_size> ..FV..
-pix_fmt <pix_fmt> ..FV..
-pixel_aspect <rational> ..FV.. (from 0 to INT_MAX)
-sws_param <string> ..FV.. 