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@ingramchen
ingramchen / gist:e2af352bf8b40bb88890fba4f47eccd0
Created April 5, 2016 12:58
ffmpeg convert gif to mp4, for best cross browser compatibility
### Full command line options
```
ffmpeg -f gif -i FOO.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)*2:floor(in_h/2)*2' BAR.mp4
```
### Notie
* output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS.
@bang590
bang590 / linkmap.js
Last active August 19, 2023 15:24
XCode Linkmap Parser
var readline = require('readline'),
fs = require('fs');
var LinkMap = function(filePath) {
this.files = []
this.filePath = filePath
}
LinkMap.prototype = {
start: function(cb) {
@mmick66
mmick66 / UICollectionViewFlowLayoutCenterItem.m
Last active August 2, 2022 10:06
UICollectionViewFlowLayout with arbitrary sized Paging
#import "UICollectionViewFlowLayoutCenterItem.h"
@implementation UICollectionViewFlowLayoutCenterItem
- (CGPoint)targetContentOffsetForProposedContentOffset:(CGPoint)proposedContentOffset withScrollingVelocity:(CGPoint)velocity
{
CGSize collectionViewSize = self.collectionView.bounds.size;
CGFloat proposedContentOffsetCenterX = proposedContentOffset.x + self.collectionView.bounds.size.width * 0.5f;
CGRect proposedRect = self.collectionView.bounds;
@luca-bernardi
luca-bernardi / AVAsset+VideoOrientation.h
Created February 23, 2013 18:12
Find the video orientation of an AVAsset. (Useful if you need to send the video to a remote server)
//
// AVAsset+VideoOrientation.h
//
// Created by Luca Bernardi on 19/09/12.
// Copyright (c) 2012 Luca Bernardi. All rights reserved.
//
#import <AVFoundation/AVFoundation.h>
typedef enum {
LBVideoOrientationUp, //Device starts recording in Portrait
@akshay1188
akshay1188 / whatsapp-image-compression
Last active June 10, 2023 16:42
Whatsapp like image compression
- (UIImage *)compressImage:(UIImage *)image{
float actualHeight = image.size.height;
float actualWidth = image.size.width;
float maxHeight = 600.0;
float maxWidth = 800.0;
float imgRatio = actualWidth/actualHeight;
float maxRatio = maxWidth/maxHeight;
float compressionQuality = 0.5;//50 percent compression
if (actualHeight > maxHeight || actualWidth > maxWidth) {
@lqik2004
lqik2004 / gist:3606931
Created September 3, 2012 05:25
GetPixelColorAtLocation
- (UIColor *) getPixelColorAtLocation:(CGPoint)point {
UIColor* color = nil;
CGImageRef inImage = self.image.CGImage;
// Create off screen bitmap context to draw the image into. Format ARGB is 4 bytes for each pixel: Alpa, Red, Green, Blue
CGContextRef cgctx = [self createARGBBitmapContextFromImage:inImage];
if (cgctx == NULL) {
return nil; /* error */
}
size_t w = CGImageGetWidth(inImage);
@monkeycycle
monkeycycle / formatSecondsAsTime.js
Created November 27, 2011 22:12
JavaScript format Seconds value as Formatted Time 00:00:00
function formatSecondsAsTime(secs, format) {
var hr = Math.floor(secs / 3600);
var min = Math.floor((secs - (hr * 3600))/60);
var sec = Math.floor(secs - (hr * 3600) - (min * 60));
if (hr < 10) { hr = "0" + hr; }
if (min < 10) { min = "0" + min; }
if (sec < 10) { sec = "0" + sec; }
if (hr) { hr = "00"; }