strezh

## gstreamerinit.sh
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

export LD_LIBRARY_PATH=/usr/local/lib

## codec.m
%% Calculate coefficients for DCT
dct(eye(8))

%% Calculate coefficients for wavelet
[LoD,HiD,LoR,HiR] = wfilters('db4')

% in coder
LF_coeffs = LoR
HF_coeffs = HiR

## CMake gists.txt
# Switch between compilers
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  # using Clang
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  # using GCC
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")
  # using Intel C++
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
  # using Visual Studio C++
endif()

## share_inet_to_BBB.sh
#!/bin/sh

# On BBB
#ifconfig usb0 192.168.7.2
#route add default gw 192.168.7.1

# and add to /etc/resolv.conf
# nameserver 8.8.8.8

# Share Wi-Fi Inet to BeagleBoneBlack

## stm32_tools_linux.md

      
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                strezh
                / stm32_tools_linux.md
            
            
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                Сборка инструментов для STM32 под Linux
              
          
    Скачать


Скачать ARM GCC Toolchain с https://launchpad.net/gcc-arm-embedded

wget https://launchpad.net/gcc-arm-embedded/4.9/4.9-2014-q4-major/+download/gcc-arm-none-eabi-4_9-2014q4-20141203-linux.tar.bz2


Скачать Ecplipse Kepler: http://www.eclipse.org/downloads/packages/release/Kepler


Установить из репозитория Kepler пакет "Programming Languages->C/C++ Developer Tools"


## VideoFoto snippets.md

      
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Маленькая и удобная утилита для получения изображений с вебкамеры.

fswebcam -q -d /dev/video1 -r 800x600 /path/to/webcam.jpg


Конвертирование y4m в различные форматы (вместо avconv может быть ffmpeg):

avconv -i <file_name>.y4m -pix_fmt yuv420p <file_name>.yuv
avconv -i <file_name>.y4m -pix_fmt yuv422p <file_name>.yuv
avconv -i <file_name>.y4m -pix_fmt yuv444p <file_name>.yuv


## convert_y4m_to_yuv.sh
#!/bin/bash

if [[ $#>0 ]]
then
    INPUT_FILE_NAME=$1
else
    exit
fi

FILE_NAME=`sed 's/\.y4m$//' <<< ${INPUT_FILE_NAME}`

## driver x64 for XBMD
change:
1. pci_find_device -> pci_get_device
2. ioctl:   XPCIe_Ioctl -> unlocked_ioctl:   XPCIe_Ioctl,
3. int XPCIe_Ioctl(struct inode *inode,   -> int XPCIe_Ioctl(/*struct inode *inode, */

## SwipeArea.qml
import QtQuick 2.0


MouseArea {
    property point origin
    property bool ready: false
    signal move(int x, int y)
    signal swipe(string direction)

    onPressed: {

## rgb2yuv.c
Y = char( 0.257*R + 0.504*G + 0.098*B + 16);
U = char( 0.439*R - 0.368*G - 0.071*B + 128);
V = char(-0.148*R - 0.291*G + 0.439*B + 128);
	export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

	export LD_LIBRARY_PATH=/usr/local/lib
	%% Calculate coefficients for DCT
	dct(eye(8))

	%% Calculate coefficients for wavelet
	[LoD,HiD,LoR,HiR] = wfilters('db4')

	% in coder
	LF_coeffs = LoR
	HF_coeffs = HiR
	# Switch between compilers
	if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
	# using Clang
	elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
	# using GCC
	elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")
	# using Intel C++
	elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
	# using Visual Studio C++
	endif()
	#!/bin/sh

	# On BBB
	#ifconfig usb0 192.168.7.2
	#route add default gw 192.168.7.1

	# and add to /etc/resolv.conf
	# nameserver 8.8.8.8

	# Share Wi-Fi Inet to BeagleBoneBlack
	#!/bin/bash

	if [[ $#>0 ]]
	then
	INPUT_FILE_NAME=$1
	else
	exit
	fi

	FILE_NAME=`sed 's/\.y4m$//' <<< ${INPUT_FILE_NAME}`
	change:
	1. pci_find_device -> pci_get_device
	2. ioctl: XPCIe_Ioctl -> unlocked_ioctl: XPCIe_Ioctl,
	3. int XPCIe_Ioctl(struct inode inode, -> int XPCIe_Ioctl(/struct inode inode, /
	import QtQuick 2.0


	MouseArea {
	property point origin
	property bool ready: false
	signal move(int x, int y)
	signal swipe(string direction)

	onPressed: {
	Y = char( 0.257R + 0.504G + 0.098*B + 16);
	U = char( 0.439R - 0.368G - 0.071*B + 128);
	V = char(-0.148R - 0.291G + 0.439*B + 128);