This guide supports Ubuntu Precise Pangolin 12.04, Ubuntu Oneiric Ocelot 11.10, Ubuntu Natty Narwhal 11.04, and Ubuntu Maverick Meerkat 10.10. Separate guides are available for Ubuntu Lucid Lynx 10.04 and Ubuntu Hardy Heron 8.04. This guide will enable several external encoding and decoding libraries: libfaac (AAC encoder), libfdk-aac (AAC encoder), libmp3lame (MP3 encoder), libopencore-amr (AMR encoder/decoder), librtmp (for additional RTMP protocols), libtheora (Theora encoder), libvorbis (Vorbis encoder), libvpx (VP8 encoder/decoder), and libx264 (H.264 encoder). These are optional and may be omitted if desired. This guide will also install many filters (see the filter list in the [Filtering Guide](https://ffmpeg.org/trac/ffmpeg/wiki/Fi
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#! /usr/bin/env python | |
class Point(object): | |
def __init__(self, _x, _y, _order = None): self.x, self.y, self.order = _x, _y, _order | |
def calc(self, top, bottom, other_x): | |
l = (top * inverse_mod(bottom)) % p | |
x3 = (l * l - self.x - other_x) % p | |
return Point(x3, (l * (self.x - x3) - self.y) % p) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
all: test libtest.so testmodule | |
libtest.so: libtest.c | |
$(CC) -Wall -g -fPIC -shared -o $@ $? -lc | |
test: test_main.c libtest.o | |
$(CC) -o $@ $? | |
testmodule: testmodule.c | |
python setup.py build |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import re | |
# functions to detect/fix double-encoded UTF-8 strings | |
# Based on http://blogs.perl.org/users/chansen/2010/10/coping-with-double-encoded-utf-8.html | |
DOUBLE_ENCODED = re.compile(""" | |
\xC3 (?: [\x82-\x9F] \xC2 [\x80-\xBF] # U+0080 - U+07FF | |
| \xA0 \xC2 [\xA0-\xBF] \xC2 [\x80-\xBF] # U+0800 - U+0FFF | |
| [\xA1-\xAC] \xC2 [\x80-\xBF] \xC2 [\x80-\xBF] # U+1000 - U+CFFF | |
| \xAD \xC2 [\x80-\x9F] \xC2 [\x80-\xBF] # U+D000 - U+D7FF | |
| [\xAE-\xAF] \xC2 [\x80-\xBF] \xC2 [\x80-\xBF] # U+E000 - U+FFFF |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import sys, cv2 | |
# Refactored https://realpython.com/blog/python/face-recognition-with-python/ | |
def cascade_detect(cascade, image): | |
gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) | |
return cascade.detectMultiScale( | |
gray_image, | |
scaleFactor = 1.15, | |
minNeighbors = 5, |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package proxy | |
import ( | |
"io" | |
"log" | |
"net" | |
) | |
func Proxy(srvConn, cliConn *net.TCPConn) { | |
// channels to wait on the close event for each connection |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import subprocess | |
import select | |
from logging import DEBUG, ERROR | |
def call(popenargs, logger, stdout_log_level=DEBUG, stderr_log_level=ERROR, **kwargs): | |
""" | |
Variant of subprocess.call that accepts a logger instead of stdout/stderr, | |
and logs stdout messages via logger.debug and stderr messages via | |
logger.error. |
The following commands will start a container with Kafka and Zookeeper running on mapped ports 2181 (Zookeeper) and 9092 (Kafka).
docker pull spotify/kafka
docker run -d -p 2181:2181 -p 9092:9092 --env ADVERTISED_HOST=kafka --env ADVERTISED_PORT=9092 --name kafka spotify/kafka
ADVERTISTED_HOST
was set to kafka
, which will allow other containers to be able to run Producers and Consumers.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import os | |
import subprocess | |
# Open file corresponding to the TUN device. | |
tun = open('/dev/tun0', 'r+b') | |
# Bring it up and assign addresses. | |
subprocess.check_call('ifconfig tun0 192.168.7.1 192.168.7.2 up', shell=True) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package main | |
import ( | |
"bytes" | |
"crypto/aes" | |
"crypto/cipher" | |
"encoding/hex" | |
"fmt" | |
) |