+++ /dev/null
-.TH X265 "1" "AUGUST 2014" "v1.4" "User Commands"
-.SH NAME
-x265 \- H.265/HEVC video encoder
-
-.SH SYNOPSIS
-.B x265 \fR[options] \fIinfile \fR[\-o] \fIoutfile
-.br
-Bit depth: 8
-.PP
-.B x265\-10bit \fR[options] \fIinfile \fR[\-o] \fIoutfile
-.br
-Bit depth: 10
-.PP
-infile can be YUV or Y4M
-.br
-outfile is raw HEVC bitstream
-
-.SH DESCRIPTION
-Increasing demand for high definition and ultra\-high definition video,
-along with an increasing desire for video on demand has led to
-exponential growth in demand for bandwidth and storage requirements.
-These challenges can be met by the new High Efficiency Video Coding
-(HEVC) standard, also known as H.265. The x265 HEVC encoder project was
-launched by MulticoreWare in 2013, aiming to provide the most efficient,
-highest performance HEVC video encoder.
-.SS About HEVC
-The High Efficiency Video Coding (HEVC) was developed by the ISO/IEC
-Moving Picture Experts Group (MPEG) and ITU\-T Video Coding Experts Group
-(VCEG), through their Joint Collaborative Team on Video Coding (JCT\-VC).
-HEVC is also known as ISO/IEC 23008\-2 MPEG\-H Part 2 and ITU\-T H.265.
-HEVC provides superior video quality and up to twice the data
-compression as the previous standard (H.264/MPEG\-4 AVC). HEVC can
-support 8K Ultra High Definition video, with a picture size up to
-8192x4320 pixels.
-.SS About x265
-The primary objective of x265 is to become the best H.265/HEVC encoder
-available anywhere, offering the highest compression efficiency and the
-highest performance on a wide variety of hardware platforms. The x265
-encoder is available as an open source library, published under the
-GPLv2 license. It is also available under a commercial license, enabling
-commercial companies to utilize and distribute x265 in their solutions
-without being subject to the restrictions of the GPL license.
-
-.SH OPTIONS
-.TP
-\fB\-h/\-\-help
-Show this help text and exit
-.TP
-\fB\-V/\-\-version
-Show version info and exit
-
-.SS "Output Options:"
-.TP
-\fB\-\-output <filename>
-Bitstream output file name
-.TP
-\fB\-\-log\-level <string>
-Logging level: none error warning info debug full. Default info
-.TP
-\fB\-\-no\-progress
-Disable CLI progress reports
-.TP
-\fB\-\-[no\-]cu\-stats
-Enable logging stats about distribution of cu across all modes. Default disabled
-.TP
-\fB\-\-csv <filename>
-Comma separated log file, log level >= 3 frame log, else one line per run
-
-.SS "Input Options:"
-.TP
-\fB\-\-input <filename>
-Raw YUV or Y4M input file name. `\-` for stdin
-.TP
-\fB\-\-y4m
-Force parsing of input stream as YUV4MPEG2 regardless of file extension
-.TP
-\fB\-\-fps <float|rational>
-Source frame rate (float or num/denom), auto\-detected if Y4M
-.TP
-\fB\-\-input\-res WxH
-Source picture size [w x h], auto\-detected if Y4M
-.TP
-\fB\-\-input\-depth <integer>
-Bit\-depth of input file. Default 8
-.TP
-\fB\-\-input\-csp <string>
-Source color space: i420, i444 or i422, auto\-detected if Y4M. Default: i420
-.TP
-\fB\-f/\-\-frames <integer>
-Maximum number of frames to encode. Default all
-.TP
-\fB\-\-seek <integer>
-First frame to encode
-.TP
-\fB\-\-[no\-]interlace <bff|tff>
-Indicate input pictures are interlace fields in temporal order. Default progressive
-.TP
-\fB\-\-dither
-Enable dither if downscaling to 8 bit pixels. Default disabled
-
-.SS "Quality reporting metrics:"
-.TP
-\fB\-\-[no\-]ssim
-Enable reporting SSIM metric scores. Default disabled
-.TP
-\fB\-\-[no\-]psnr
-Enable reporting PSNR metric scores. Default disabled
-
-.SS "Profile, Level, Tier:"
-.TP
-\fB\-\-profile <string>
-Enforce an encode profile: main, main10, mainstillpicture
-.TP
-\fB\-\-level\-idc <integer|float>
-Force a minumum required decoder level (as '5.0' or '50')
-.TP
-\fB\-\-[no\-]high\-tier
-If a decoder level is specified, this modifier selects High tier of that level
-
-.SS "Threading, performance:"
-.TP
-\fB\-\-threads <integer>
-Number of threads for thread pool (0: detect CPU core count, default)
-.TP
-\fB\-F/\-\-frame\-threads <integer>
-Number of concurrently encoded frames. 0: auto\-determined by core count
-.TP
-\fB\-\-[no\-]wpp
-Enable Wavefront Parallel Processing. Default enabled
-.TP
-\fB\-\-[no\-]pmode
-Parallel mode analysis. Default disabled
-.TP
-\fB\-\-[no\-]pme
-Parallel motion estimation. Default disabled
-.TP
-\fB\-\-[no\-]asm <bool|int|string>
-Override CPU detection. Default: auto
-
-.SS Presets:
-.TP
-\fB\-p/\-\-preset <string>
-Trade off performance for compression efficiency. Default medium
-.br
-ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow, or placebo
-.TP
-\fB\-t/--tune <string>
-Tune the settings for a particular type of source or situation:"
-.br
-psnr, ssim, zerolatency, or fastdecode
-
-.SS "Quad-Tree size and depth:"
-.TP
-\fB\-s/\-\-ctu <64|32|16>
-Maximum CU size (default: 64x64). Default 64
-.TP
-\fB\-\-tu\-intra\-depth <integer>
-Max TU recursive depth for intra CUs. Default 1
-.TP
-\fB\-\-tu\-inter\-depth <integer>
-Max TU recursive depth for inter CUs. Default 1
-.TP
-\fB\-\-[no\-]rect
-Enable rectangular motion partitions Nx2N and 2NxN. Default disabled
-.TP
-\fB\-\-[no\-]amp
-Enable asymmetric motion partitions, requires \fB\-\-rect\fR. Default disabled
-.TP
-\fB\-\-rd <0..6>
-Level of RD in mode decision 0:least....6:full RDO. Default 3
-.TP
-\fB\-\-psy\-rd <0..2.0>
-Strength of psycho\-visual rate distortion optimization, 0 to disable. Default 0.000000
-.TP
-\fB\-\-psy\-rdoq <0..50.0>
-Strength of psycho\-visual optimization in quantization, 0 to disable. Default 0.000000
-.TP
-\fB\-\-nr <integer>
-An integer value in range of 100 to 1000, which denotes strength of noise reduction. Default disabled
-.TP
-\fB\-\-[no\-]tskip\-fast
-Enable fast intra transform skipping. Default disabled
-.TP
-\fB\-\-[no\-]early\-skip
-Enable early SKIP detection. Default disabled
-.TP
-\fB\-\-[no\-]fast\-cbf
-Enable early outs based on whether residual is coded. Default disabled
-
-.SS "Coding tools:"
-.TP
-\fB\-w/\-\-[no\-]weightp
-Enable weighted prediction in P slices. Default enabled
-.TP
-\fB\-\-[no\-]weightb
-Enable weighted prediction in B slices. Default disabled
-.TP
-\fB\-\-[no\-]cu-lossless
-Consider lossless mode in CU RDO decisions. Default disabled
-.TP
-\fB\-\-[no\-]signhide
-Hide sign bit of one coeff per TU (rdo). Default enabled
-.TP
-\fB\-\-[no\-]tskip
-Enable intra transform skipping. Default disabled
-
-.SS "Temporal / motion search options:"
-.TP
-\fB\-\-me <string>
-Motion search method dia hex umh star full. Default 1
-.TP
-\fB\-m/\-\-subme <integer>
-Amount of subpel refinement to perform (0:least .. 7:most). Default 2
-.TP
-\fB\-\-merange <integer>
-Motion search range. Default 57
-.TP
-\fB\-\-max\-merge <1..5>
-Maximum number of merge candidates. Default 2
-.TP
-\fB\-\-[no\-]temporal\-mvp
-Enable temporal MV predictors. Default enabled
-
-.SS "Spatial / intra options:"
-.TP
-\fB\-\-[no\-]strong\-intra\-smoothing
-Enable strong intra smoothing for 32x32 blocks. Default enabled
-.TP
-\fB\-\-[no\-]constrained\-intra
-Constrained intra prediction (use only intra coded reference pixels) Default disabled
-.TP
-\fB\-\-[no\-]b\-intra
-Enable intra in B frames in veryslow presets. Default disabled
-.TP
-\fB\-\-[no\-]fast\-intra
-Enable faster search method for angular intra predictions. Default disabled
-.TP
-\fB\-\-rdpenalty <0..2>
-penalty for 32x32 intra TU in non\-I slices. 0:disabled 1:RD\-penalty 2:maximum. Default 0
-
-.SS "Slice decision options:"
-.TP
-\fB\-\-[no\-]open\-gop
-Enable open\-GOP, allows I slices to be non\-IDR. Default enabled
-.TP
-\fB\-I/\-\-keyint <integer>
-Max IDR period in frames. \-1 for infinite\-gop. Default 250
-.TP
-\fB\-i/\-\-min\-keyint <integer>
-Scenecuts closer together than this are coded as I, not IDR. Default: auto
-.TP
-\fB\-\-no\-scenecut
-Disable adaptive I\-frame decision
-.TP
-\fB\-\-scenecut <integer>
-How aggressively to insert extra I\-frames. Default 40
-.TP
-\fB\-\-rc\-lookahead <integer>
-Number of frames for frame\-type lookahead (determines encoder latency) Default 20
-.TP
-\fB\-\-bframes <integer>
-Maximum number of consecutive b\-frames (now it only enables B GOP structure) Default 4
-.TP
-\fB\-\-bframe\-bias <integer>
-Bias towards B frame decisions. Default 0
-.TP
-\fB\-\-b\-adapt <0..2>
-0 \- none, 1 \- fast, 2 \- full (trellis) adaptive B frame scheduling. Default 2
-.TP
-\fB\-\-[no\-]b\-pyramid
-Use B\-frames as references. Default enabled
-.TP
-\fB\-\-ref <integer>
-max number of L0 references to be allowed (1 .. 16) Default 3
-.TP
-\fB\-\-qpfile <string>
-Force frametypes and QPs for some or all frames
-.br
-Format of each line: framenumber frametype QP
-.br
-QP is optional (none lets x265 choose). Frametypes: I,i,P,B,b.
-.br
-QPs are restricted by qpmin/qpmax.
-.PP
-
-.SS "Rate control, Quantization:"
-.TP
-\fB\-\-bitrate <integer>
-Target bitrate (kbps) for ABR (implied). Default 0
-.TP
-\fB\-\-crf <float>
-Quality\-based VBR (0\-51). Default 28.000000
-.TP
-\fB\-\-[no\-]lossless
-Enable lossless: bypass transform, quant and loop filters globally. Default disabled
-.TP
-\fB\-\-crf\-max <float>
-With CRF+VBV, limit RF to this value. Default 0.000000
-.br
-May cause VBV underflows!
-.TP
-\fB\-\-crf\-min <float>
-With CRF+VBV, limit RF to this value. Default 0.000000
-.br
-this specifies a minimum rate factor value for encode!
-.TP
-\fB\-\-vbv\-maxrate <integer>
-Max local bitrate (kbit/s). Default 0
-.TP
-\fB\-\-vbv\-bufsize <integer>
-Set size of the VBV buffer (kbit). Default 0
-.TP
-\fB\-\-vbv\-init <float>
-Initial VBV buffer occupancy (fraction of bufsize or in kbits). Default 0.900000
-.TP
-\fB\-\-aq\-mode <integer>
-Mode for Adaptive Quantization \- 0:none 1:uniform AQ 2:auto variance. Default 2
-.TP
-\fB\-\-aq\-strength <float>
-Reduces blocking and blurring in flat and textured areas.(0 to 3.0). Default 1.000000
-.TP
-\fB\-\-[no\-]cutree
-Enable cutree for Adaptive Quantization. Default enabled
-.TP
-\fB\-\-ipratio <float>
-QP factor between I and P. Default 1.400000
-.TP
-\fB\-\-pbratio <float>
-QP factor between P and B. Default 1.300000
-.TP
-\fB\-\-cbqpoffs <integer>
-Chroma Cb QP Offset. Default 0
-.TP
-\fB\-\-crqpoffs <integer>
-Chroma Cr QP Offset. Default 0
-.TP
-\fB\-\-stats
-Filename for stats file in multipass pass rate control. Default x265_2pass.log
-.TP
-\fB\-\-pass
-Multi pass rate control.
-.br
- \- 1 : First pass, creates stats file
-.br
- \- 2 : Last pass, does not overwrite stats file
-.br
- \- 3 : Nth pass, overwrites stats file
-.TP
-\fB\-\-[no\-]slow\-firstpass
-Enable a slow first pass in a multipass rate control mode. Default disabled
-.TP
-\fB\-\-analysis\-mode <string|int>
-save \- Dump analysis info into file, load \- Load analysis buffers from the file. Default 0
-.TP
-\fB\-\-analysis-file <filename>
-Specify file name used for either dumping or reading analysis data.
-.TP
-\fB\-\-scaling\-list <string>
-Specify a file containing HM style quant scaling lists or 'default' or 'off'. Default: off
-.TP
-\fB\-\-lambda\-file <string>
-Specify a file containing replacement values for the lambda tables
-.br
-MAX_MAX_QP+1 floats for lambda table, then again for lambda2 table
-.br
-Blank lines and lines starting with hash(#) are ignored
-.br
-Comma is considered to be white-space
-
-.SS "Loop filters (deblock and SAO):"
-.TP
-\fB\-\-[no\-]lft
-Enable Deblocking Loop Filter. Default enabled
-.TP
-\fB\-\-[no\-]sao
-Enable Sample Adaptive Offset. Default enabled
-.TP
-\fB\-\-[no\-]sao\-non\-deblock
-Use non\-deblocked pixels, else right/bottom boundary areas skipped. Default disabled
-
-.SS "VUI options:"
-.TP
-\fB\-\-sar <width:height|int>
-Sample Aspect Ratio, the ratio of width to height of an individual pixel.
-.br
-Choose from 0=undef, 1=1:1("square"), 2=12:11, 3=10:11, 4=16:11,
-5=40:33, 6=24:11, 7=20:11, 8=32:11, 9=80:33, 10=18:11, 11=15:11,
-12=64:33, 13=160:99, 14=4:3, 15=3:2, 16=2:1 or custom ratio of <int:int>. Default 0
-.TP
-\fB\-\-crop\-rect <string>
-Add 'left,top,right,bottom' to the bitstream\-level cropping rectangle
-.TP
-\fB\-\-overscan <string>
-Specify whether it is appropriate for decoder to show cropped region: undef, show or crop. Default undef
-.TP
-\fB\-\-videoformat <string>
-Specify video format from undef, component, pal, ntsc, secam, mac. Default undef
-.TP
-\fB\-\-range <string>
-Specify black level and range of luma and chroma signals as full or limited Default limited
-.TP
-\fB\-\-colorprim <string>
-Specify color primaries from undef, bt709, bt470m, bt470bg, smpte170m,
-smpte240m, film, bt2020. Default undef
-.TP
-\fB\-\-transfer <string>
-Specify transfer characteristics from undef, bt709, bt470m, bt470bg, smpte170m,
-smpte240m, linear, log100, log316, iec61966\-2\-4, bt1361e, iec61966\-2\-1,
-bt2020\-10, bt2020\-12. Default undef
-.TP
-\fB\-\-colormatrix <string>
-Specify color matrix setting from undef, bt709, fcc, bt470bg, smpte170m,
-smpte240m, GBR, YCgCo, bt2020nc, bt2020c. Default undef
-.TP
-\fB\-\-chromaloc <integer>
-Specify chroma sample location (0 to 5). Default of 0
-
-.SS "Bitstream options:"
-.TP
-\fB\-\-[no\-]info
-Emit SEI identifying encoder and parameters. Default enabled
-.TP
-\fB\-\-[no\-]aud
-Emit access unit delimiters at the start of each access unit. Default disabled
-.TP
-\fB\-\-[no\-]hrd
-Enable HRD parameters signalling. Default disabled
-.TP
-\fB\-\-[no\-]repeat\-headers
-Emit SPS and PPS headers at each keyframe. Default disabled
-.TP
-\fB\-\-hash <integer>
-Decoded Picture Hash SEI 0: disabled, 1: MD5, 2: CRC, 3: Checksum. Default 0
-
-.SS "Reconstructed video options (debugging):"
-.TP
-\fB\-r/\-\-recon <filename>
-Reconstructed raw image YUV or Y4M output file name
-.TP
-\fB\-\-recon\-depth <integer>
-Bit\-depth of reconstructed raw image file. Defaults to input bit depth, or 8 if Y4M
-.SH COPYRIGHT
-Copyright \(co 2013\-2014 MulticoreWare, Inc.
-.PP
-The x265 software is owned and copyrighted by MulticoreWare, Inc.
-MulticoreWare is committed to offering the x265 software under the GNU
-GPL v2 license. Companies who do not wish to integrate the x265
-Software in their products under the terms of the GPL license can
-contact MulticoreWare (\fIlicense@x265.com\fR) to obtain a commercial
-license agreement. Companies who use x265 under the GPL may also wish
-to work with MulticoreWare to accelerate the development of specific
-features or optimized support for specific hardware or software
-platforms, or to contract for support.
-.PP
-The GNU GPL v2 license or the x265 commercial license agreement govern
-your rights to access the copyrighted x265 software source code, but do
-not cover any patents that may be applicable to the function of binary
-executable software created from the x265 source code. You are
-responsible for understanding the laws in your country, and for
-licensing all applicable patent rights needed for use or distribution of
-software applications created from the x265 source code. A good place
-to start is with the Motion Picture Experts Group \- Licensing Authority
-\- HEVC Licensing Program.
-.PP
-x265 is a registered trademark of MulticoreWare, Inc. The x265 logo is
-a trademark of MulticoreWare, and may only be used with explicit written
-permission. All rights reserved.
-
-.SH "SEE ALSO"
-.TP
-\fIhttp://x265.readthedocs.org/en/default/cli.html\fR
-online documentation
repositories / deb_x265.git / blobdiff