Nick Griffith Nickolans

## Convert .mov or .MP4 to .gif.md

      
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              714 stars
            
          
                SheldonWangRJT
                / Convert .mov or .MP4 to .gif.md
            
            
              Last active
              October 29, 2025 18:06
            
              
                Convert Movie(.mov) file to Gif(.gif) file in one command line in Mac Terminal
              
          
    This notes is written by Sheldon. You can find me with #iOSBySheldon in Github, Youtube, Facebook, etc.
Need

Convert .mov/.MP4 to .gif
Reason

As a developer, I feel better to upload a short video when I create the pull request to show other viewers what I did in this PR. I tried .mov format directly got after finishing recording screen using Quicktime, however, gif offers preview in most web pages, and has smaller file size.
This is not limited to developer, anyone has this need can use this method to convert the files.

  
## Swift: Convert structs and enums to NSData and vice-versa
func encode<T>(var value: T) -> NSData {
    return withUnsafePointer(&value) { p in
        NSData(bytes: p, length: sizeofValue(value))
    }
}

func decode<T>(data: NSData) -> T {
    let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
    data.getBytes(pointer)


## CoreBluetooth.md

      
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                brayden-morris-303
                / CoreBluetooth.md
            
            
              Last active
              February 18, 2023 04:53
            
              
                Overview of Bluetooth Low Energy (BLE) and CoreBluetooth
              
          
    CoreBluetooth and BLE

Bluetooth Low Energy (BLE)

Various Names:

Bluetooth Low Energy
BLE
BTLE
	func encode<T>(var value: T) -> NSData {
	return withUnsafePointer(&value) { p in
	NSData(bytes: p, length: sizeofValue(value))
	}
	}

	func decode<T>(data: NSData) -> T {
	let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
	data.getBytes(pointer)