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/*Daala video codec | |
Copyright (c) 2003-2010 Daala project contributors. All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are met: | |
- Redistributions of source code must retain the above copyright notice, this | |
list of conditions and the following disclaimer. | |
- Redistributions in binary form must reproduce the above copyright notice, |
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import math | |
P = 2.25 | |
def quant(cq): return math.trunc(math.exp((cq-6.235)*.10989525)*16.0) | |
def curve(cq): return quant(cq-math.pow(cq-1,P)/(2.0*P*math.pow(62.0,P-1))) | |
print(', '.join(['0x%04X' % n for n in [0] + [curve(cq) for cq in range(1,64)]])) |
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#!/usr/bin/env python3.4 | |
from collections import deque | |
import sys | |
import numpy as np | |
from skimage import color | |
import random | |
from scipy import ndimage | |
# Assuming BT.709 | |
yuv2rgb = np.array([ |
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#!/bin/bash | |
# REQUIRES imagemagick compiled with HDRI feature enabled | |
SIZE=$(head -n1 "$1" | sed -E 's/.*W([0-9]*) H([0-9]*).*/\1x\2/') | |
FMT="-size $SIZE -depth 8 -sampling-factor 4:2:0 -interlace plane -set colorspace Rec709YCbCr" | |
convert $FMT YUV:<(tail -n+3<"$1") YUV:<(tail -n+3<"$2") \ | |
-colorspace Lab -compose difference \ | |
-composite -evaluate Pow 2 -separate -evaluate-sequence Add \ | |
-filter box -resize 1x1\! -format "%[fx:-10*log(u)]\n" info: |
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#!/bin/bash | |
readlinkf(){ perl -MCwd -e 'print Cwd::abs_path shift' "$1";} | |
DAALA_ROOT="$(readlinkf ${DAALA_ROOT:-.})" | |
INPUT_IMAGE="$(readlinkf $1)" | |
OUTPUT_VIDEO="$(readlinkf ${2:-$(basename "$INPUT_IMAGE").webm})" | |
cq="0 1 2 3 4 5 7 9 11 13 16 19 22 25 28 33 38 44 50 57 64 73 82 92 104 117 132 148 166 187 209 235 263 295 330 369 413 462" | |
P=${P:-4} | |
( | |
cd /tmp | |
FIFOS="`echo -n $cq|sed 's/[0-9][0-9]*/&.y4m/g'`" |
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#!/usr/bin/python | |
import xml.sax | |
from igraph import Graph | |
from collections import defaultdict | |
class XWN( xml.sax.ContentHandler ): | |
def __init__(self): | |
self.graph = Graph(directed = True) | |
self.synSets = [] | |
self.currentTag = "" |
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/* See https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp | |
for original plain C/C++ implementation */ | |
/* build with -msse4.2 */ | |
#include <smmintrin.h> | |
#include <emmintrin.h> | |
FORCE_INLINE fmix32_m128i ( __m128i h ) | |
{ |
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require 'capybara/mechanize' | |
require 'sinatra/base' | |
Capybara.run_server = false | |
Capybara.current_driver = :mechanize | |
class TestApp < Sinatra::Base; get '/' do; end end | |
Capybara.app = TestApp | |
Capybara.app_host = "http://127.0.0.1/" | |
class Spider |
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#!/bin/sh | |
test "2" = `grep -e '^--HG--$' -e '^branch : [^ ][^ ]*$' "$1"|wc -l` || { | |
echo >&2 Missing hg branch specification. | |
exit 1 | |
} |
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[url "https://github.com/"] | |
insteadof = git@github.com: |