Category "avasset"

How to get bit rate from MPMediaItem

I'd like to get a song's bit rate, for example 256 kbps, from a MPMediaItem retrieved via MPMediaPickerController. Is this possible? I tried to get it via: AVAs

Change volume of audio track within AVMutableComposition

I'm trying to merge a pre-existing video with a newly recorded audio voiceover track. User can set the relative sound volume for the two audio tracks (audio bel

macOS modify the cover art (ArtWork) of a video file, I found some API code, but it fails to modify any metadata

As the title. I am writing an app for macOS. Used to modify the cover (ArtWork) and title of the video file. I found some API code, it doesn't work, any metadat