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https://github.com/ultravideo/uvg266.git
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c438bb4a19
Adds command line option --fast-residual-cost=<limit>. When QP is below the limit, estimates the cost of coding the residual coefficients from the sum of absolute coefficients. Skipping CABAC is not worth it with high QPs because there are fewer coefficients so CABAC is not as slow.
353 lines
9.5 KiB
Groff
353 lines
9.5 KiB
Groff
.TH KVAZAAR "1" "July 2018" "kvazaar v1.2.0" "User Commands"
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.SH NAME
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kvazaar \- open source HEVC encoder
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.SH SYNOPSIS
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\fBkvazaar \fR\-i <input> \-\-input\-res <width>x<height> \-o <output>
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.SH DESCRIPTION
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.TP
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\fB\-i\fR, \fB\-\-input <filename>
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Input file
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.TP
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\fB\-\-input\-res <res>
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Input resolution [auto]
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\- auto: Detect from file name.
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\- <int>x<int>: width times height
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.TP
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\fB\-o\fR, \fB\-\-output <filename>
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Output file
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.SS "Presets:"
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.TP
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\fB\-\-preset <preset>
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Set options to a preset [medium]
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\- ultrafast, superfast, veryfast, faster,
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fast, medium, slow, slower, veryslow
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placebo
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.SS "Input:"
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.TP
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\fB\-n\fR, \fB\-\-frames <integer>
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Number of frames to code [all]
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.TP
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\fB\-\-seek <integer>
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First frame to code [0]
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.TP
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\fB\-\-input\-fps <num>[/<denom>]
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Frame rate of the input video [25]
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.TP
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\fB\-\-source\-scan\-type <string>
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Source scan type [progressive]
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\- progressive: Progressive scan
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\- tff: Top field first
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\- bff: Bottom field first
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.TP
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\fB\-\-input\-format <string>
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P420 or P400 [P420]
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.TP
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\fB\-\-input\-bitdepth <int>
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8\-16 [8]
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.TP
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\fB\-\-loop\-input
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Re\-read input file forever.
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.SS "Options:"
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.TP
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\fB\-\-help
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Print this help message and exit.
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.TP
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\fB\-\-version
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Print version information and exit.
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.TP
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\fB\-\-(no\-)aud
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Use access unit delimiters. [disabled]
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.TP
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\fB\-\-debug <filename>
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Output internal reconstruction.
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.TP
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\fB\-\-(no\-)cpuid
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Enable runtime CPU optimizations. [enabled]
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.TP
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\fB\-\-hash <string>
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Decoded picture hash [checksum]
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\- none: 0 bytes
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\- checksum: 18 bytes
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\- md5: 56 bytes
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.TP
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\fB\-\-(no\-)psnr
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Calculate PSNR for frames. [enabled]
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.TP
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\fB\-\-(no\-)info
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Add encoder info SEI. [enabled]
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.TP
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\fB\-\-crypto <string>
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Selective encryption. Crypto support must be
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enabled at compile\-time. Can be 'on' or 'off' or
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a list of features separated with a '+'. [off]
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\- on: Enable all encryption features.
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\- off: Disable selective encryption.
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\- mvs: Motion vector magnitudes.
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\- mv_signs: Motion vector signs.
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\- trans_coeffs: Coefficient magnitudes.
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\- trans_coeff_signs: Coefficient signs.
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\- intra_pred_modes: Intra prediction modes.
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.TP
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\fB\-\-key <string>
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Encryption key [16,213,27,56,255,127,242,112,
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97,126,197,204,25,59,38,30]
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.SS "Video structure:"
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.TP
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\fB\-q\fR, \fB\-\-qp <integer>
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Quantization parameter [22]
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.TP
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\fB\-p\fR, \fB\-\-period <integer>
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Period of intra pictures [64]
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\- 0: Only first picture is intra.
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\- 1: All pictures are intra.
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\- N: Every Nth picture is intra.
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.TP
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\fB\-\-vps\-period <integer>
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How often the video parameter set is re\-sent [0]
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\- 0: Only send VPS with the first frame.
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\- N: Send VPS with every Nth intra frame.
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.TP
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\fB\-r\fR, \fB\-\-ref <integer>
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Number of reference frames, in range 1..15 [4]
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.TP
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\fB\-\-gop <string>
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GOP structure [8]
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\- 0: Disabled
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\- 8: B\-frame pyramid of length 8
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\- lp\-<string>: Low\-delay P\-frame GOP
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(e.g. lp\-g8d4t2, see README)
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.TP
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\fB\-\-cqmfile <filename>
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Read custom quantization matrices from a file.
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.TP
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\fB\-\-bitrate <integer>
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Target bitrate [0]
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\- 0: Disable rate control.
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\- N: Target N bits per second.
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.TP
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\fB\-\-(no\-)lossless
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Use lossless coding. [disabled]
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.TP
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\fB\-\-mv\-constraint <string>
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Constrain movement vectors. [none]
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\- none: No constraint
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\- frametile: Constrain within the tile.
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\- frametilemargin: Constrain even more.
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.TP
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\fB\-\-roi <filename>
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Use a delta QP map for region of interest.
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Reads an array of delta QP values from a text
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file. The file format is: width and height of
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the QP delta map followed by width*height delta
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QP values in raster order. The map can be of any
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size and will be scaled to the video size.
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.TP
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\fB\-\-(no\-)erp\-aqp
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Use adaptive QP for 360 degree video with
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equirectangular projection. [disabled]
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.TP
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\fB\-\-level <number>
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Use the given HEVC level in the output and give
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an error if level limits are exceeded. [6.2]
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\- 1, 2, 2.1, 3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6,
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6.1, 6.2
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.TP
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\fB\-\-force\-level <number>
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Same as \-\-level but warnings instead of errors.
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.TP
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\fB\-\-high\-tier
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Used with \-\-level. Use high tier bitrate limits
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instead of the main tier limits during encoding.
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High tier requires level 4 or higher.
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.SS "Compression tools:"
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.TP
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\fB\-\-(no\-)deblock <beta:tc>
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Deblocking filter. [0:0]
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\- beta: Between \-6 and 6
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\- tc: Between \-6 and 6
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.TP
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\fB\-\-sao <string>
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Sample Adaptive Offset [full]
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\- off: SAO disabled
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\- band: Band offset only
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\- edge: Edge offset only
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\- full: Full SAO
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.TP
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\fB\-\-(no\-)rdoq
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Rate\-distortion optimized quantization [enabled]
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.TP
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\fB\-\-(no\-)rdoq\-skip
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Skip RDOQ for 4x4 blocks. [disabled]
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.TP
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\fB\-\-(no\-)signhide
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Sign hiding [disabled]
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.TP
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\fB\-\-(no\-)smp
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Symmetric motion partition [disabled]
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.TP
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\fB\-\-(no\-)amp
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Asymmetric motion partition [disabled]
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.TP
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\fB\-\-rd <integer>
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Intra mode search complexity [0]
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\- 0: Skip intra if inter is good enough.
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\- 1: Rough intra mode search with SATD.
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\- 2: Refine intra mode search with SSE.
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\- 3: Try all intra modes and enable intra
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chroma mode search.
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.TP
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\fB\-\-(no\-)mv\-rdo
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Rate\-distortion optimized motion vector costs
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[disabled]
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.TP
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\fB\-\-(no\-)full\-intra\-search
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Try all intra modes during rough search.
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[disabled]
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.TP
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\fB\-\-(no\-)transform\-skip
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Try transform skip [disabled]
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.TP
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\fB\-\-me <string>
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Integer motion estimation algorithm [hexbs]
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\- hexbs: Hexagon Based Search
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\- tz: Test Zone Search
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\- full: Full Search
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\- full8, full16, full32, full64
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\- dia: Diamond Search
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.TP
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\fB\-\-me\-steps <integer>
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Motion estimation search step limit. Only
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affects 'hexbs' and 'dia'. [\-1]
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.TP
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\fB\-\-subme <integer>
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Fractional pixel motion estimation level [4]
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\- 0: Integer motion estimation only
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\- 1: + 1/2\-pixel horizontal and vertical
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\- 2: + 1/2\-pixel diagonal
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\- 3: + 1/4\-pixel horizontal and vertical
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\- 4: + 1/4\-pixel diagonal
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.TP
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\fB\-\-pu\-depth\-inter <int>\-<int>
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Inter prediction units sizes [0\-3]
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\- 0, 1, 2, 3: from 64x64 to 8x8
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.TP
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\fB\-\-pu\-depth\-intra <int>\-<int>
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Intra prediction units sizes [1\-4]
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\- 0, 1, 2, 3, 4: from 64x64 to 4x4
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.TP
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\fB\-\-tr\-depth\-intra <int>
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Transform split depth for intra blocks [0]
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.TP
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\fB\-\-(no\-)bipred
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Bi\-prediction [disabled]
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.TP
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\fB\-\-cu\-split\-termination <string>
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CU split search termination [zero]
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\- off: Don't terminate early.
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\- zero: Terminate when residual is zero.
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.TP
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\fB\-\-me\-early\-termination <string>
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Motion estimation termination [on]
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\- off: Don't terminate early.
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\- on: Terminate early.
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\- sensitive: Terminate even earlier.
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.TP
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\fB\-\-fast\-residual\-cost <int>
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Skip CABAC cost for residual coefficients
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when QP is below the limit. [0]
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.TP
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\fB\-\-(no\-)intra\-rdo\-et
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Check intra modes in rdo stage only until
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a zero coefficient CU is found. [disabled]
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.TP
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\fB\-\-(no\-)implicit\-rdpcm
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Implicit residual DPCM. Currently only supported
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with lossless coding. [disabled]
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.TP
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\fB\-\-(no\-)tmvp
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Temporal motion vector prediction [enabled]
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.SS "Parallel processing:"
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.TP
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\fB\-\-threads <integer>
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Number of threads to use [auto]
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\- 0: Process everything with main thread.
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\- N: Use N threads for encoding.
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\- auto: Select automatically.
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.TP
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\fB\-\-owf <integer>
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Frame\-level parallelism [auto]
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\- N: Process N+1 frames at a time.
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\- auto: Select automatically.
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.TP
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\fB\-\-(no\-)wpp
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Wavefront parallel processing. [enabled]
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Enabling tiles automatically disables WPP.
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To enable WPP with tiles, re\-enable it after
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enabling tiles. Enabling wpp with tiles is,
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however, an experimental feature since it is
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not supported in any HEVC profile.
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.TP
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\fB\-\-tiles <int>x<int>
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Split picture into width x height uniform tiles.
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.TP
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\fB\-\-tiles\-width\-split <string>|u<int>
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\- <string>: A comma\-separated list of tile
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column pixel coordinates.
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\- u<int>: Number of tile columns of uniform
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width.
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.TP
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\fB\-\-tiles\-height\-split <string>|u<int>
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\- <string>: A comma\-separated list of tile row
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column pixel coordinates.
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\- u<int>: Number of tile rows of uniform
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height.
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.TP
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\fB\-\-slices <string>
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Control how slices are used.
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\- tiles: Put tiles in independent slices.
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\- wpp: Put rows in dependent slices.
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\- tiles+wpp: Do both.
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.SS "Video Usability Information:"
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.TP
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\fB\-\-sar <width:height>
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Specify sample aspect ratio
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.TP
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\fB\-\-overscan <string>
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Specify crop overscan setting [undef]
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\- undef, show, crop
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.TP
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\fB\-\-videoformat <string>
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Specify video format [undef]
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\- undef, component, pal, ntsc, secam, mac
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.TP
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\fB\-\-range <string>
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Specify color range [tv]
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\- tv, pc
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.TP
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\fB\-\-colorprim <string>
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Specify color primaries [undef]
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\- undef, bt709, bt470m, bt470bg,
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smpte170m, smpte240m, film, bt2020
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.TP
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\fB\-\-transfer <string>
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Specify transfer characteristics [undef]
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\- undef, bt709, bt470m, bt470bg,
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smpte170m, smpte240m, linear, log100,
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log316, iec61966\-2\-4, bt1361e,
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iec61966\-2\-1, bt2020\-10, bt2020\-12
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.TP
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\fB\-\-colormatrix <string>
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Specify color matrix setting [undef]
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\- undef, bt709, fcc, bt470bg, smpte170m,
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smpte240m, GBR, YCgCo, bt2020nc, bt2020c
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.TP
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\fB\-\-chromaloc <integer>
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Specify chroma sample location (0 to 5) [0]
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