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Improve mesh media throughput (#845)

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* Improve mesh media throughput

* Reserve media slots atomically

* Prioritize small fragment trains

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
This commit is contained in:
jack
2025-10-21 12:53:54 +02:00
committed by GitHub
co-authored by jack
parent 450955525c
commit 0812cafd55
6 changed files with 227 additions and 50 deletions
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bitchat/Features/media/ImageUtils.swift
+5 -5
View File
@@ -13,10 +13,10 @@ enum ImageUtilsError: Error {
}
enum ImageUtils {
private static let compressionQuality: CGFloat = 0.85
private static let targetImageBytes: Int = 60_000
private static let compressionQuality: CGFloat = 0.82
private static let targetImageBytes: Int = 45_000
static func processImage(at url: URL, maxDimension: CGFloat = 512) throws -> URL {
static func processImage(at url: URL, maxDimension: CGFloat = 448) throws -> URL {
// Security H1: Check file size BEFORE reading into memory
let attrs = try FileManager.default.attributesOfItem(atPath: url.path)
guard let fileSize = attrs[.size] as? Int else {
@@ -38,7 +38,7 @@ enum ImageUtils {
}
#if os(iOS)
static func processImage(_ image: UIImage, maxDimension: CGFloat = 512) throws -> URL {
static func processImage(_ image: UIImage, maxDimension: CGFloat = 448) throws -> URL {
return try autoreleasepool {
// Scale the image first
let scaled = scaledImage(image, maxDimension: maxDimension)
@@ -106,7 +106,7 @@ enum ImageUtils {
return data as Data
}
#else
static func processImage(_ image: NSImage, maxDimension: CGFloat = 512) throws -> URL {
static func processImage(_ image: NSImage, maxDimension: CGFloat = 448) throws -> URL {
return try autoreleasepool {
let scaled = scaledImage(image, maxDimension: maxDimension)
guard let inputCG = scaled.cgImage(forProposedRect: nil, context: nil, hints: nil) else {
bitchat/Features/voice/VoiceRecorder.swift
+3 -2
View File
@@ -14,6 +14,7 @@ final class VoiceRecorder: NSObject, AVAudioRecorderDelegate {
private let queue = DispatchQueue(label: "com.bitchat.voice-recorder")
private let paddingInterval: TimeInterval = 0.5
private let maxRecordingDuration: TimeInterval = 120
private var recorder: AVAudioRecorder?
private var currentURL: URL?
@@ -75,14 +76,14 @@ final class VoiceRecorder: NSObject, AVAudioRecorderDelegate {
AVFormatIDKey: kAudioFormatMPEG4AAC,
AVSampleRateKey: 16_000,
AVNumberOfChannelsKey: 1,
AVEncoderBitRateKey: 20_000
AVEncoderBitRateKey: 16_000
]
let audioRecorder = try AVAudioRecorder(url: outputURL, settings: settings)
audioRecorder.delegate = self
audioRecorder.isMeteringEnabled = true
audioRecorder.prepareToRecord()
audioRecorder.record()
audioRecorder.record(forDuration: maxRecordingDuration)
recorder = audioRecorder
currentURL = outputURL