6f46ef8531
* Replace panic with error return * Replace last regex with hand written parser * Update dependencies * Fix clippy warnings * Adjust idx check * More idiomatic rust
516 lines
28 KiB
Plaintext
516 lines
28 KiB
Plaintext
x264 core:163 r3060 5db6aa6
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Syntax: x264 [options] -o outfile infile
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Infile can be raw (in which case resolution is required),
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or YUV4MPEG (*.y4m),
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or Avisynth if compiled with support (no).
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or libav* formats if compiled with lavf support (no) or ffms support (no).
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Outfile type is selected by filename:
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.264 -> Raw bytestream
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.mkv -> Matroska
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.flv -> Flash Video
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.mp4 -> MP4 if compiled with GPAC or L-SMASH support (lsmash)
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Output bit depth: 8/10
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.
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Options:
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-h, --help List basic options
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--longhelp List more options
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--fullhelp List all options
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Example usage:
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Constant quality mode:
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x264 --crf 24 -o <output> <input>
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Two-pass with a bitrate of 1000kbps:
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x264 --pass 1 --bitrate 1000 -o <output> <input>
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x264 --pass 2 --bitrate 1000 -o <output> <input>
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Lossless:
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x264 --qp 0 -o <output> <input>
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Maximum PSNR at the cost of speed and visual quality:
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x264 --preset placebo --tune psnr -o <output> <input>
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Constant bitrate at 1000kbps with a 2 second-buffer:
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x264 --vbv-bufsize 2000 --bitrate 1000 -o <output> <input>
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Presets:
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--profile <string> Force the limits of an H.264 profile
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Overrides all settings.
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- baseline, main, high, high10, high422, high444
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--preset <string> Use a preset to select encoding settings [medium]
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Overridden by user settings.
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- ultrafast,superfast,veryfast,faster,fast
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- medium,slow,slower,veryslow,placebo
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--tune <string> Tune the settings for a particular type of source
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or situation
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Overridden by user settings.
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Multiple tunings are separated by commas.
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Only one psy tuning can be used at a time.
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- psy tunings: film,animation,grain,
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stillimage,psnr,ssim
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- other tunings: fastdecode,zerolatency
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Frame-type options:
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-I, --keyint <integer or "infinite"> Maximum GOP size [250]
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--tff Enable interlaced mode (top field first)
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--bff Enable interlaced mode (bottom field first)
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--pulldown <string> Use soft pulldown to change frame rate
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- none, 22, 32, 64, double, triple, euro (requires cfr input)
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Ratecontrol:
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-B, --bitrate <integer> Set bitrate (kbit/s)
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--crf <float> Quality-based VBR (-12-51) [23.0]
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--vbv-maxrate <integer> Max local bitrate (kbit/s) [0]
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--vbv-bufsize <integer> Set size of the VBV buffer (kbit) [0]
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-p, --pass <integer> Enable multipass ratecontrol
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- 1: First pass, creates stats file
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- 2: Last pass, does not overwrite stats file
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Input/Output:
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-o, --output <string> Specify output file
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--sar width:height Specify Sample Aspect Ratio
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--fps <float|rational> Specify framerate
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--seek <integer> First frame to encode
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--frames <integer> Maximum number of frames to encode
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--level <string> Specify level (as defined by Annex A)
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--quiet Quiet Mode
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Filtering:
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--vf, --video-filter <filter0>/<filter1>/... Apply video filtering to the input file
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Filter options may be specified in <filter>:<option>=<value> format.
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Available filters:
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crop:left,top,right,bottom
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select_every:step,offset1[,...]
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redzic@threadripper ~> x264 --fullhelp
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x264 core:163 r3060 5db6aa6
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Syntax: x264 [options] -o outfile infile
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Infile can be raw (in which case resolution is required),
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or YUV4MPEG (*.y4m),
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or Avisynth if compiled with support (no).
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or libav* formats if compiled with lavf support (no) or ffms support (no).
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Outfile type is selected by filename:
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.264 -> Raw bytestream
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.mkv -> Matroska
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.flv -> Flash Video
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.mp4 -> MP4 if compiled with GPAC or L-SMASH support (lsmash)
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Output bit depth: 8/10
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.
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Options:
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-h, --help List basic options
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--longhelp List more options
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--fullhelp List all options
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Example usage:
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Constant quality mode:
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x264 --crf 24 -o <output> <input>
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Two-pass with a bitrate of 1000kbps:
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x264 --pass 1 --bitrate 1000 -o <output> <input>
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x264 --pass 2 --bitrate 1000 -o <output> <input>
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Lossless:
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x264 --qp 0 -o <output> <input>
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Maximum PSNR at the cost of speed and visual quality:
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x264 --preset placebo --tune psnr -o <output> <input>
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Constant bitrate at 1000kbps with a 2 second-buffer:
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x264 --vbv-bufsize 2000 --bitrate 1000 -o <output> <input>
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Presets:
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--profile <string> Force the limits of an H.264 profile
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Overrides all settings.
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- baseline:
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--no-8x8dct --bframes 0 --no-cabac
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--cqm flat --weightp 0
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No interlaced.
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No lossless.
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- main:
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--no-8x8dct --cqm flat
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No lossless.
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- high:
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No lossless.
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- high10:
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No lossless.
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Support for bit depth 8-10.
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- high422:
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No lossless.
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Support for bit depth 8-10.
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Support for 4:2:0/4:2:2 chroma subsampling.
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- high444:
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Support for bit depth 8-10.
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Support for 4:2:0/4:2:2/4:4:4 chroma subsampling.
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--preset <string> Use a preset to select encoding settings [medium]
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Overridden by user settings.
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- ultrafast:
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--no-8x8dct --aq-mode 0 --b-adapt 0
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--bframes 0 --no-cabac --no-deblock
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--no-mbtree --me dia --no-mixed-refs
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--partitions none --rc-lookahead 0 --ref 1
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--scenecut 0 --subme 0 --trellis 0
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--no-weightb --weightp 0
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- superfast:
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--no-mbtree --me dia --no-mixed-refs
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--partitions i8x8,i4x4 --rc-lookahead 0
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--ref 1 --subme 1 --trellis 0 --weightp 1
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- veryfast:
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--no-mixed-refs --rc-lookahead 10
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--ref 1 --subme 2 --trellis 0 --weightp 1
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- faster:
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--no-mixed-refs --rc-lookahead 20
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--ref 2 --subme 4 --weightp 1
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- fast:
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--rc-lookahead 30 --ref 2 --subme 6
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--weightp 1
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- medium:
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Default settings apply.
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- slow:
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--direct auto --rc-lookahead 50 --ref 5
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--subme 8 --trellis 2
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- slower:
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--b-adapt 2 --direct auto --me umh
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--partitions all --rc-lookahead 60
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--ref 8 --subme 9 --trellis 2
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- veryslow:
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--b-adapt 2 --bframes 8 --direct auto
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--me umh --merange 24 --partitions all
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--ref 16 --subme 10 --trellis 2
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--rc-lookahead 60
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- placebo:
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--bframes 16 --b-adapt 2 --direct auto
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--slow-firstpass --no-fast-pskip
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--me tesa --merange 24 --partitions all
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--rc-lookahead 60 --ref 16 --subme 11
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--trellis 2
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--tune <string> Tune the settings for a particular type of source
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or situation
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Overridden by user settings.
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Multiple tunings are separated by commas.
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Only one psy tuning can be used at a time.
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- film (psy tuning):
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--deblock -1:-1 --psy-rd <unset>:0.15
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- animation (psy tuning):
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--bframes {+2} --deblock 1:1
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--psy-rd 0.4:<unset> --aq-strength 0.6
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--ref {Double if >1 else 1}
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- grain (psy tuning):
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--aq-strength 0.5 --no-dct-decimate
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--deadzone-inter 6 --deadzone-intra 6
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--deblock -2:-2 --ipratio 1.1
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--pbratio 1.1 --psy-rd <unset>:0.25
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--qcomp 0.8
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- stillimage (psy tuning):
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--aq-strength 1.2 --deblock -3:-3
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--psy-rd 2.0:0.7
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- psnr (psy tuning):
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--aq-mode 0 --no-psy
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- ssim (psy tuning):
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--aq-mode 2 --no-psy
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- fastdecode:
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--no-cabac --no-deblock --no-weightb
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--weightp 0
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- zerolatency:
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--bframes 0 --force-cfr --no-mbtree
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--sync-lookahead 0 --sliced-threads
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--rc-lookahead 0
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--slow-firstpass Don't force these faster settings with --pass 1:
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--no-8x8dct --me dia --partitions none
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--ref 1 --subme {2 if >2 else unchanged}
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--trellis 0 --fast-pskip
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Frame-type options:
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-I, --keyint <integer or "infinite"> Maximum GOP size [250]
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-i, --min-keyint <integer> Minimum GOP size [auto]
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--no-scenecut Disable adaptive I-frame decision
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--scenecut <integer> How aggressively to insert extra I-frames [40]
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--intra-refresh Use Periodic Intra Refresh instead of IDR frames
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-b, --bframes <integer> Number of B-frames between I and P [3]
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--b-adapt <integer> Adaptive B-frame decision method [1]
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Higher values may lower threading efficiency.
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- 0: Disabled
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- 1: Fast
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- 2: Optimal (slow with high --bframes)
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--b-bias <integer> Influences how often B-frames are used [0]
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--b-pyramid <string> Keep some B-frames as references [normal]
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- none: Disabled
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- strict: Strictly hierarchical pyramid
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- normal: Non-strict (not Blu-ray compatible)
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--open-gop Use recovery points to close GOPs
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Only available with b-frames
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--no-cabac Disable CABAC
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-r, --ref <integer> Number of reference frames [3]
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--no-deblock Disable loop filter
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-f, --deblock <alpha:beta> Loop filter parameters [0:0]
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--slices <integer> Number of slices per frame; forces rectangular
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slices and is overridden by other slicing options
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--slices-max <integer> Absolute maximum slices per frame; overrides
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slice-max-size/slice-max-mbs when necessary
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--slice-max-size <integer> Limit the size of each slice in bytes
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--slice-max-mbs <integer> Limit the size of each slice in macroblocks (max)
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--slice-min-mbs <integer> Limit the size of each slice in macroblocks (min)
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--tff Enable interlaced mode (top field first)
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--bff Enable interlaced mode (bottom field first)
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--constrained-intra Enable constrained intra prediction.
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--pulldown <string> Use soft pulldown to change frame rate
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- none, 22, 32, 64, double, triple, euro (requires cfr input)
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--fake-interlaced Flag stream as interlaced but encode progressive.
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Makes it possible to encode 25p and 30p Blu-Ray
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streams. Ignored in interlaced mode.
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--frame-packing <integer> For stereoscopic videos define frame arrangement
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- 0: checkerboard - pixels are alternatively from L and R
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- 1: column alternation - L and R are interlaced by column
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- 2: row alternation - L and R are interlaced by row
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- 3: side by side - L is on the left, R on the right
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- 4: top bottom - L is on top, R on bottom
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- 5: frame alternation - one view per frame
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- 6: mono - 2D frame without any frame packing
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- 7: tile format - L is on top-left, R split across
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Ratecontrol:
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-q, --qp <integer> Force constant QP (0-81, 0=lossless)
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-B, --bitrate <integer> Set bitrate (kbit/s)
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--crf <float> Quality-based VBR (-12-51) [23.0]
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--rc-lookahead <integer> Number of frames for frametype lookahead [40]
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--vbv-maxrate <integer> Max local bitrate (kbit/s) [0]
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--vbv-bufsize <integer> Set size of the VBV buffer (kbit) [0]
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--vbv-init <float> Initial VBV buffer occupancy [0.9]
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--crf-max <float> With CRF+VBV, limit RF to this value
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May cause VBV underflows!
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--qpmin <integer> Set min QP [0]
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--qpmax <integer> Set max QP [81]
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--qpstep <integer> Set max QP step [4]
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--ratetol <float> Tolerance of ABR ratecontrol and VBV [1.0]
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--ipratio <float> QP factor between I and P [1.40]
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--pbratio <float> QP factor between P and B [1.30]
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--chroma-qp-offset <integer> QP difference between chroma and luma [0]
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--aq-mode <integer> AQ method [1]
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- 0: Disabled
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- 1: Variance AQ (complexity mask)
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- 2: Auto-variance AQ
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- 3: Auto-variance AQ with bias to dark scenes
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--aq-strength <float> Reduces blocking and blurring in flat and
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textured areas. [1.0]
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-p, --pass <integer> Enable multipass ratecontrol
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- 1: First pass, creates stats file
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- 2: Last pass, does not overwrite stats file
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- 3: Nth pass, overwrites stats file
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--stats <string> Filename for 2 pass stats ["x264_2pass.log"]
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--no-mbtree Disable mb-tree ratecontrol.
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--qcomp <float> QP curve compression [0.60]
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--cplxblur <float> Reduce fluctuations in QP (before curve compression) [20.0]
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--qblur <float> Reduce fluctuations in QP (after curve compression) [0.5]
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--zones <zone0>/<zone1>/... Tweak the bitrate of regions of the video
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Each zone is of the form
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<start frame>,<end frame>,<option>
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where <option> is either
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q=<integer> (force QP)
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or b=<float> (bitrate multiplier)
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--qpfile <string> Force frametypes and QPs for some or all frames
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Format of each line: framenumber frametype QP
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QP is optional (none lets x264 choose). Frametypes: I,i,K,P,B,b.
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K=<I or i> depending on open-gop setting
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QPs are restricted by qpmin/qpmax.
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Analysis:
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-A, --partitions <string> Partitions to consider ["p8x8,b8x8,i8x8,i4x4"]
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- p8x8, p4x4, b8x8, i8x8, i4x4, none, all
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(p4x4 requires p8x8. i8x8 requires --8x8dct.)
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--direct <string> Direct MV prediction mode ["spatial"]
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- none, spatial, temporal, auto
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--no-weightb Disable weighted prediction for B-frames
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--weightp <integer> Weighted prediction for P-frames [2]
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- 0: Disabled
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- 1: Weighted refs
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- 2: Weighted refs + Duplicates
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--me <string> Integer pixel motion estimation method ["hex"]
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- dia: diamond search, radius 1 (fast)
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- hex: hexagonal search, radius 2
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- umh: uneven multi-hexagon search
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- esa: exhaustive search
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- tesa: hadamard exhaustive search (slow)
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--merange <integer> Maximum motion vector search range [16]
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--mvrange <integer> Maximum motion vector length [-1 (auto)]
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--mvrange-thread <int> Minimum buffer between threads [-1 (auto)]
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-m, --subme <integer> Subpixel motion estimation and mode decision [7]
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- 0: fullpel only (not recommended)
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- 1: SAD mode decision, one qpel iteration
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- 2: SATD mode decision
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- 3-5: Progressively more qpel
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- 6: RD mode decision for I/P-frames
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- 7: RD mode decision for all frames
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- 8: RD refinement for I/P-frames
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- 9: RD refinement for all frames
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- 10: QP-RD - requires trellis=2, aq-mode>0
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- 11: Full RD: disable all early terminations
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--psy-rd <float:float> Strength of psychovisual optimization ["1.0:0.0"]
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#1: RD (requires subme>=6)
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#2: Trellis (requires trellis, experimental)
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--no-psy Disable all visual optimizations that worsen
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both PSNR and SSIM.
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--no-mixed-refs Don't decide references on a per partition basis
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--no-chroma-me Ignore chroma in motion estimation
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--no-8x8dct Disable adaptive spatial transform size
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-t, --trellis <integer> Trellis RD quantization. [1]
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- 0: disabled
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- 1: enabled only on the final encode of a MB
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- 2: enabled on all mode decisions
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--no-fast-pskip Disables early SKIP detection on P-frames
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--no-dct-decimate Disables coefficient thresholding on P-frames
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--nr <integer> Noise reduction [0]
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--deadzone-inter <int> Set the size of the inter luma quantization deadzone [21]
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--deadzone-intra <int> Set the size of the intra luma quantization deadzone [11]
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Deadzones should be in the range 0 - 32.
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--cqm <string> Preset quant matrices ["flat"]
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- flat, jvt
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--cqmfile <string> Read custom quant matrices from a JM-compatible file
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Overrides any other --cqm* options.
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--cqm4 <list> Set all 4x4 quant matrices
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Takes a comma-separated list of 16 integers.
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--cqm8 <list> Set all 8x8 quant matrices
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Takes a comma-separated list of 64 integers.
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--cqm4i, --cqm4p, --cqm8i, --cqm8p <list>
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Set both luma and chroma quant matrices
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--cqm4iy, --cqm4ic, --cqm4py, --cqm4pc <list>
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Set individual quant matrices
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Video Usability Info (Annex E):
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The VUI settings are not used by the encoder but are merely suggestions to
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the playback equipment. See doc/vui.txt for details. Use at your own risk.
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--overscan <string> Specify crop overscan setting ["undef"]
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- undef, show, crop
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--videoformat <string> Specify video format ["undef"]
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- component, pal, ntsc, secam, mac, undef
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--range <string> Specify color range ["auto"]
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- auto, tv, pc
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--colorprim <string> Specify color primaries ["undef"]
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- undef, bt709, bt470m, bt470bg, smpte170m,
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smpte240m, film, bt2020, smpte428,
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smpte431, smpte432
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--transfer <string> Specify transfer characteristics ["undef"]
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- undef, bt709, bt470m, bt470bg, smpte170m,
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smpte240m, linear, log100, log316,
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iec61966-2-4, bt1361e, iec61966-2-1,
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bt2020-10, bt2020-12, smpte2084, smpte428,
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arib-std-b67
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--colormatrix <string> Specify color matrix setting ["???"]
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- undef, bt709, fcc, bt470bg, smpte170m,
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smpte240m, GBR, YCgCo, bt2020nc, bt2020c,
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smpte2085, chroma-derived-nc,
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chroma-derived-c, ICtCp
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--chromaloc <integer> Specify chroma sample location (0 to 5) [0]
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--mastering-display <string> Specify 'G(x,y)B(x,y)R(x,y)WP(x,y)L(max,min)'
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for primaries, white point, and display brightness
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--cll <string> Specify 'max_content,max_frame_average' content
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light levels
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--alternative-transfer <string> Specify an alternative transfer
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characteristics ["undef"]
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- same values as --transfer
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--nal-hrd <string> Signal HRD information (requires vbv-bufsize)
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- none, vbr, cbr (cbr not allowed in .mp4)
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--filler Force hard-CBR and generate filler (implied by
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--nal-hrd cbr)
|
|
--pic-struct Force pic_struct in Picture Timing SEI
|
|
--crop-rect <string> Add 'left,top,right,bottom' to the bitstream-level
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|
cropping rectangle
|
|
|
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Input/Output:
|
|
|
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-o, --output <string> Specify output file
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|
--muxer <string> Specify output container format ["auto"]
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|
- auto, raw, mkv, flv, mp4
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|
--demuxer <string> Specify input container format ["auto"]
|
|
- auto, raw, y4m
|
|
--input-fmt <string> Specify input file format (requires lavf support)
|
|
--input-csp <string> Specify input colorspace format for raw input
|
|
- valid csps for `raw' demuxer:
|
|
i400, i420, yv12, nv12, nv21, i422, yv16, nv16,
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|
yuyv, uyvy, i444, yv24, bgr, bgra, rgb
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|
--output-csp <string> Specify output colorspace ["i420"]
|
|
- i400, i420, i422, i444, rgb
|
|
--input-depth <integer> Specify input bit depth for raw input
|
|
--output-depth <integer> Specify output bit depth
|
|
--input-range <string> Specify input color range ["auto"]
|
|
- auto, tv, pc
|
|
--input-res <intxint> Specify input resolution (width x height)
|
|
--index <string> Filename for input index file
|
|
--sar width:height Specify Sample Aspect Ratio
|
|
--fps <float|rational> Specify framerate
|
|
--seek <integer> First frame to encode
|
|
--frames <integer> Maximum number of frames to encode
|
|
--level <string> Specify level (as defined by Annex A)
|
|
--bluray-compat Enable compatibility hacks for Blu-ray support
|
|
--avcintra-class <integer> Use compatibility hacks for AVC-Intra class
|
|
- 50, 100, 200
|
|
--avcintra-flavor <string> AVC-Intra flavor ["panasonic"]
|
|
- panasonic, sony
|
|
--stitchable Don't optimize headers based on video content
|
|
Ensures ability to recombine a segmented encode
|
|
|
|
-v, --verbose Print stats for each frame
|
|
--no-progress Don't show the progress indicator while encoding
|
|
--quiet Quiet Mode
|
|
--log-level <string> Specify the maximum level of logging ["info"]
|
|
- none, error, warning, info, debug
|
|
--psnr Enable PSNR computation
|
|
--ssim Enable SSIM computation
|
|
--threads <integer> Force a specific number of threads
|
|
--lookahead-threads <integer> Force a specific number of lookahead threads
|
|
--sliced-threads Low-latency but lower-efficiency threading
|
|
--thread-input Run Avisynth in its own thread
|
|
--sync-lookahead <integer> Number of buffer frames for threaded lookahead
|
|
--non-deterministic Slightly improve quality of SMP, at the cost of repeatability
|
|
--cpu-independent Ensure exact reproducibility across different cpus,
|
|
as opposed to letting them select different algorithms
|
|
--asm <integer> Override CPU detection
|
|
--no-asm Disable all CPU optimizations
|
|
--opencl Enable use of OpenCL
|
|
--opencl-clbin <string> Specify path of compiled OpenCL kernel cache
|
|
--opencl-device <integer> Specify OpenCL device ordinal
|
|
--dump-yuv <string> Save reconstructed frames
|
|
--sps-id <integer> Set SPS and PPS id numbers [0]
|
|
--aud Use access unit delimiters
|
|
--force-cfr Force constant framerate timestamp generation
|
|
--tcfile-in <string> Force timestamp generation with timecode file
|
|
--tcfile-out <string> Output timecode v2 file from input timestamps
|
|
--timebase <int/int> Specify timebase numerator and denominator
|
|
<integer> Specify timebase numerator for input timecode file
|
|
or specify timebase denominator for other input
|
|
--dts-compress Eliminate initial delay with container DTS hack
|
|
|
|
Filtering:
|
|
|
|
--vf, --video-filter <filter0>/<filter1>/... Apply video filtering to the input file
|
|
|
|
Filter options may be specified in <filter>:<option>=<value> format.
|
|
|
|
Available filters:
|
|
crop:left,top,right,bottom
|
|
removes pixels from the edges of the frame
|
|
select_every:step,offset1[,...]
|
|
apply a selection pattern to input frames
|
|
step: the number of frames in the pattern
|
|
offsets: the offset into the step to select a frame
|
|
see: http://avisynth.nl/index.php/Select#SelectEvery
|
|
|