#AVFoundation

Snapp iOS Weekly

@snappiosweekly.bsky.social

1 month ago

Supporting JPEG-XL compression in Apple ProRAW Capture Pinpoint some trouble you may encounter when supporting JPEG-XL

📷 𝑆𝑢𝑝𝑝𝑜𝑟𝑡𝑖𝑛𝑔 𝐽𝑃𝐸𝐺-𝑋𝐿 𝑐𝑜𝑚𝑝𝑟𝑒𝑠𝑠𝑖𝑜𝑛 𝑖𝑛 𝐴𝑝𝑝𝑙𝑒 𝑃𝑟𝑜𝑅𝐴𝑊 𝐶𝑎𝑝𝑡𝑢𝑟𝑒 by Weichao Deng

Want to reduce 48MP ProRAW file sizes without sacrificing quality? Discover how to enable JPEG-XL compression in your camera app and navigate an undocumented 𝐴𝑉𝐹𝑜𝑢𝑛𝑑𝑎𝑡𝑖𝑜𝑛 API.

#AVFoundation #ProRAW #iOSDevelopment

Vitalii Ivashchenko

@vitalii-the-dev.bsky.social

10 months ago

Hello World!

I built a SwiftUI camera translation app using AVFoundation, Vision, and ML Kit.

Offline, private, supports multiple languages, and saves your phrases.

Curious or want to support indie dev work?
apps.apple.com/app/vi-trans...

#iOS #translate #SwiftUI #AVFoundation #ML #offline

Cesar Pinto Castillo

@jagcesar.bsky.social

10 months ago

Do I have any audio processing gurus on here? I got high/low pass filters, compressors, peak limiters etc in place. But I got no idea how to configure them to improve the audio. 🙈

If anyone wants to get on a call, ping me!

#avfoundation #podcast #apple #audioUnits

Cesar Pinto Castillo

@jagcesar.bsky.social

11 months ago

Podcast folks, we pushed a new Lysten beta yesterday that adjusts the audio in realtime.

The idea is to boost vocals, lower bass and normalize audio. Please reach out if you got any feedback!

#iOS #podcast #audioUnits #avfoundation

Mark Smith

@marksmith.mastodon.social.ap.brid.gy

1 year ago

import AVFoundation import Speech import SwiftUI @MainActor @Observable class SpeechRecognizer: NSObject { private let audioEngine = AVAudioEngine() func startRecording() { let format = audioEngine.inputNode.inputFormat(forBus: 0) guard format.channelCount > 0 else { return } audioEngine.inputNode.installTap(onBus: 0, bufferSize: 1024, format: format) { _, _ in print("crashes in _dispatch_assert_queue_fail() before this is printed") } audioEngine.prepare() do { try audioEngine.start() } catch { print("start threw \(error)") } } }

This Swift 6 code crashes in _dispatch_assert_queue_fail(), even if the installTap() closure is empty. If I remove the MainActor annotation on the class, it works. Anybody else seen and/or worked around this?

#swift #concurrency #avfoundation

Mark Smith

@marksmith.org

1 year ago

import AVFoundation import Speech import SwiftUI @MainActor @Observable class SpeechRecognizer: NSObject { private let audioEngine = AVAudioEngine() func startRecording() { let format = audioEngine.inputNode.inputFormat(forBus: 0) guard format.channelCount > 0 else { return } audioEngine.inputNode.installTap(onBus: 0, bufferSize: 1024, format: format) { _, _ in print("crashes in _dispatch_assert_queue_fail() before this is printed") } audioEngine.prepare() do { try audioEngine.start() } catch { print("start threw \(error)") } } }

This Swift 6 code crashes in _dispatch_assert_queue_fail(), even if the installTap() closure is empty. If I remove the MainActor annotation on the class, it works. Anybody else seen and/or worked around this?

#swift #concurrency #avfoundation

Matthias Gansrigler-Hrad

@eternalstorms.at

1 year ago

Do I happen to be connected with an AVFoundation expert on here? I’d like to pick your brain about something.

#avfoundation #macos

Dariusz Rybicki

@darrarski.mastodon.social.ap.brid.gy

1 year ago

Can't append silent audio sample buffer · Issue #1 · darrarski/macOS-audio-gap-demo Summary When silent sample buffer is appended to AVAssetWriterInput to fill detected audio gap, the file can't be saved. Steps to reproduce Configure samples gap simulation between 3 and 6 seconds....

Looking for #AVFoundation #CoreMedia expert help to solve an issue with filling #audio gaps with silence when recording on macOS in #swift app. Any feedback much appreciated!
github.com/darrarski/macOS-audio-ga...