Add the Carthage support

Author: dreampiggy

.gitignore

@@ -23,8 +23,7 @@ DerivedData
 .bundle
 
 # Add this line if you want to avoid checking in source code from Carthage dependencies.
-# Carthage/Checkouts
-
+Carthage/Checkouts
 Carthage/Build
 
 # We recommend against adding the Pods directory to your .gitignore. However

Cartfile

@@ -0,0 +1,2 @@
+github "SDWebImage/SDWebImage" ~> 5.0
+github "SDWebImage/libavif-Xcode"

Cartfile.resolved

@@ -0,0 +1,3 @@
+github "SDWebImage/SDWebImage" "5.0.1"
+github "SDWebImage/libaom-Xcode" "1.0.0"
+github "SDWebImage/libavif-Xcode" "0.1.0"

Example/SDWebImageAVIFCoder_Example macOS/Base.lproj/Main.storyboard

@@ -1,7 +1,8 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="11134" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="B8D-0N-5wS">
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="B8D-0N-5wS">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="11134"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
         <!--Application-->
@@ -673,7 +674,7 @@
                         <outlet property="delegate" destination="Voe-Tx-rLC" id="PrD-fu-P6m"/>
                     </connections>
                 </application>
-                <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModuleProvider=""/>
+                <customObject id="Voe-Tx-rLC" customClass="AppDelegate"/>
                 <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
                 <customObject id="Ady-hI-5gd" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
             </objects>
@@ -703,7 +704,7 @@
         <!--View Controller-->
         <scene sceneID="hIz-AP-VOD">
             <objects>
-                <viewController id="XfG-lQ-9wD" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
+                <viewController id="XfG-lQ-9wD" customClass="ViewController" sceneMemberID="viewController">
                     <view key="view" id="m2S-Jp-Qdl">
                         <rect key="frame" x="0.0" y="0.0" width="480" height="270"/>
                         <autoresizingMask key="autoresizingMask"/>

Example/Screenshot/AVIFDemo-iOS.png

@@ -1,29 +1,88 @@
 # SDWebImageAVIFCoder
 
-[![CI Status](https://img.shields.io/travis/[email protected]/SDWebImageAVIFCoder.svg?style=flat)](https://travis-ci.org/[email protected]/SDWebImageAVIFCoder)
+[![CI Status](https://img.shields.io/travis/SDWebImage/SDWebImageAVIFCoder.svg?style=flat)](https://travis-ci.org/SDWebImage/SDWebImageAVIFCoder)
 [![Version](https://img.shields.io/cocoapods/v/SDWebImageAVIFCoder.svg?style=flat)](https://cocoapods.org/pods/SDWebImageAVIFCoder)
 [![License](https://img.shields.io/cocoapods/l/SDWebImageAVIFCoder.svg?style=flat)](https://cocoapods.org/pods/SDWebImageAVIFCoder)
 [![Platform](https://img.shields.io/cocoapods/p/SDWebImageAVIFCoder.svg?style=flat)](https://cocoapods.org/pods/SDWebImageAVIFCoder)
+[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/SDWebImage/SDWebImageAVIFCoder)
 
-## Example
+## What's for
 
-To run the example project, clone the repo, and run `pod install` from the Example directory first.
+This is a [SDWebImage](https://github.com/rs/SDWebImage) coder plugin to add [AV1 Image File Format (AVIF)](https://aomediacodec.github.io/av1-avif/) support. Which is built based on the open-sourced [libavif](https://github.com/joedrago/avif) codec.
+
+This AVIF coder plugin currently support AVIF still image **decoding**. Including alpha channel, as well as 10bit/12bit HDR images.
+
+The AVIF encoding is not currently support, because the software-based encoding speed is really slow. Need to wait for better enc implementation.
+
+Note: AVIF image spec is still in evolve. And the current AVIF codec is a simple implementation.
+
+Since AVIF is AV1-based inside HEIF image container. In the future, this repo may moved to existing HEIF coder plugin [SDWebImageHEIFCoder](https://github.com/SDWebImage/SDWebImageHEIFCoder) instead. 
 
 ## Requirements
 
++ iOS 8
++ tvOS 9.0
++ macOS 10.10
++ watchOS 2.0
+
 ## Installation
 
+#### CocoaPods
 SDWebImageAVIFCoder is available through [CocoaPods](https://cocoapods.org). To install
 it, simply add the following line to your Podfile:
 
 ```ruby
 pod 'SDWebImageAVIFCoder'
 ```
 
+#### Carthage
+
+SDWebImageAVIFCoder is available through [Carthage](https://github.com/Carthage/Carthage).
+
+```
+github "SDWebImage/SDWebImageAVIFCoder"
+```
+
+## Usage
+
+To use AVIF coder, you should firstly add the `SDImageAVIFCoder.sharedCoder` to the coders manager. Then you can call the View Category method to start load AVIF images.
+
++ Objective-C
+
+```objective-c
+SDImageAVIFCoder *AVIFCoder = SDImageAVIFCoder.sharedCoder;
+[[SDImageCodersManager sharedManager] addCoder:AVIFCoder];
+UIImageView *imageView;
+[imageView sd_setImageWithURL:url];
+```
+
++ Swift
+
+```swift
+let AVIFCoder = SDImageAVIFCoder.shared
+SDImageCodersManager.shared.addCoder(AVIFCoder)
+let imageView: UIImageView
+imageView.sd_setImage(with: url)
+```
+
+## Screenshot
+
+<img src="https://raw.githubusercontent.com/SDWebImage/SDWebImageAVIFCoder/master/Example/Screenshot/AVIFDemo.png" width="300" />
+<img src="https://raw.githubusercontent.com/SDWebImage/SDWebImageAVIFCoder/master/Example/Screenshot/AVIFDemo-macOS.png" width="600" />
+
+The images are from [AV1 Still Image File Format Specification](https://github.com/AOMediaCodec/av1-avif/tree/master/testFiles)
+
 ## Author
 
-[email protected], [email protected]
+DreamPiggy, [email protected]
 
 ## License
 
 SDWebImageAVIFCoder is available under the MIT license. See the LICENSE file for more info.
+
+## Thanks
+
++ [libavif](https://github.com/joedrago/avif)
++ [aom](https://aomedia.googlesource.com/aom/)
+
+