fzakaria

package avformat

//#cgo pkg-config: libavformat
//#include <libavformat/avformat.h>
import "C"
import (
	"unsafe"
)

//https://www.ffmpeg.org/doxygen/2.7/structAVFormatContext.html

camsaul

;;; -*- tab-width: 2 -*-

;;; These four lines go at the beginning of almost every code file. 16-byte iNES header

  .inesprg 1                      ; one bank of program code
  .ineschr 1                      ; one bank of picture data
  .inesmap 0                      ; we use mapper 0
  .inesmir 1                      ; Mirror setting always 1

;;; BANKING

CMCDragonkai

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore

jcemer

This is a proposal for a lightning talk at the Reactive 2016 conference. If you like this, star the Gist.

---

Thinking metrics on React applications

In regular websites, it is common to send multiple events to track user clicks. Single Page Applications change the way you look at metrics. This is a talk about a simple pattern we created at Globo.com to manage a metrics layer for http://globoplay.globo.com. The talk will cover how to track user flow using Google Analytics and other services. We solved the challenge of tying metrics and components, keeping information across pages and having global data. Also some React, React Router and React Side Effects concepts like context, higher order components, history state will be covered.

kodawah

##introduction

This benchmark evaluates the different presets options offered by x264, using medium as reference, and providing size and time differences (relative and not).

##benchmark Tests run with latest x264 (12139) and FFmpeg, configured to run with threading enabled. The slower and veryslow presets have been modified to keep the number of refs constant and compatible with most decoders. All results represent an average over 10 runs computed by perf.

kodawah

Introduction

This table shows the current implementation status of several multimedia fomats by popular tools and browsers. All tests were run with the latest available version, or git HEAD for open source software.

Symbols mean

• ✅ fully supported
• ❗ unsupported
• 💭 work in progress
• 1️⃣️ see notes

leandromoreira

% it creates a simple gray image (4x4)
I = [255, 255, 30, 100 
    255, 50, 90, 20 
    70, 70, 20, 10 
    100, 20, 10, 0];
% it converts it to grayscale
I = mat2gray(I);
% shows it 
imshow(I);

leandromoreira

function [ref_ii, ref_jj, blk_residual] = block_match(blk, frame)

% frame and block dimensions
[H, W] = size(frame);
blk_size = size(blk, 1);

ref_ii = 1;
ref_jj = 1;
err = (255 ^ 2) * (blk_size ^ 2);
blk_residual = 255 * ones(blk_size, blk_size);

jbochi

GnaphronG

 #! /bin/sh
 
 file="bbb_sunflower_2160p_30fps_normal.mp4"
 timestamp=`date +%s`
 ffmpeg="docker run --rm -it --workdir /tmp -v $PWD:/tmp kynothon/moviola:4.0-alpine "
 bento4="docker run -it --rm -u $(id -u):$(id -g) -v $PWD:/tmp --workdir /tmp ggoussard/bento4docker "
 
 echo "Getting the file"
 curl -LO http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_2160p_30fps_normal.mp4