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|
//! Call state and framing for the freeq AV media plane.
//!
//! Extracted from sleek, which reached this by calling Rust from Rust. The
//! *signaling* half went the other way and stayed there: a call is opened,
//! joined and left over IRC TAGMSGs, and any client that speaks IRC already
//! has what it needs for that in whatever language it speaks IRC in. What is
//! here is the half that cannot reasonably be written twice — the SFU's dial
//! rules, the broadcast paths, and the store that carries decoded frames from
//! the media task to whatever paints them.
//!
//! Media rides MoQ (Media over QUIC) through the freeq SFU at `{origin}/av/moq`.
use std::collections::HashMap;
use std::fmt;
use std::sync::atomic::{AtomicU32, AtomicU64, Ordering};
use std::sync::{Arc, Mutex};
/// Whether to claim camera hardware when dialing the media plane.
///
/// `permission_granted` is the Android runtime CAMERA check (pass `true` on
/// desktop). Opening Camera2 before the system dialog is answered always fails
/// and used to stick the call in audio-only with "camera unavailable".
pub fn camera_publish_at_dial(intent: bool, permission_granted: bool) -> bool {
intent && permission_granted
}
/// Frame-store key for the local self-view tile (capture tee / preview pump).
pub const LOCAL_PREVIEW_KEY: &str = "__local__";
/// One decoded remote video frame (RGBA8), shared UI ↔ media task.
#[derive(Clone)]
pub struct RgbaVideoFrame {
pub width: u32,
pub height: u32,
pub rgba: Arc<[u8]>,
/// Monotonic id for this key — UI skips texture upload when unchanged.
pub gen: u64,
}
impl fmt::Debug for RgbaVideoFrame {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("RgbaVideoFrame")
.field("width", &self.width)
.field("height", &self.height)
.field("rgba_len", &self.rgba.len())
.field("gen", &self.gen)
.finish()
}
}
/// Latest-frame map for remote participants (and optional local preview).
///
/// The media task writes; the UI thread snapshots for texture upload.
/// Intermediate frames are dropped so a 30 fps encode path cannot flood egui.
#[derive(Clone, Default)]
pub struct VideoFrameStore {
frames: Arc<Mutex<HashMap<String, RgbaVideoFrame>>>,
next_gen: Arc<AtomicU64>,
}
impl fmt::Debug for VideoFrameStore {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let n = self.frames.lock().map(|g| g.len()).unwrap_or(0);
f.debug_struct("VideoFrameStore")
.field("len", &n)
.finish()
}
}
impl VideoFrameStore {
pub fn new() -> Self {
Self::default()
}
pub fn set(&self, nick: impl Into<String>, width: u32, height: u32, rgba: Arc<[u8]>) {
if width == 0 || height == 0 {
return;
}
let expected = (width as usize).saturating_mul(height as usize).saturating_mul(4);
if rgba.len() != expected {
return;
}
// Camera / decoder paths sometimes leave alpha at 0 (OBS virtual cam,
// some MJPEG converters). egui then draws a fully transparent tile.
let rgba = force_opaque_rgba(rgba);
let gen = self.next_gen.fetch_add(1, Ordering::Relaxed).wrapping_add(1);
if let Ok(mut g) = self.frames.lock() {
g.insert(
nick.into(),
RgbaVideoFrame {
width,
height,
rgba,
gen,
},
);
}
}
pub fn remove(&self, nick: &str) {
if let Ok(mut g) = self.frames.lock() {
g.remove(nick);
}
}
pub fn clear(&self) {
if let Ok(mut g) = self.frames.lock() {
g.clear();
}
}
/// Copy frames from `other` for keys we do not already hold.
///
/// Used when MoQ re-dials: the new session store starts empty, but the UI
/// still has last-good tiles. Seeding then attaching the new store keeps
/// stale pixels visible until live frames overwrite them — and ensures new
/// decoder writes land in the store the UI is painting (no orphan Arc).
pub fn seed_missing_from(&self, other: &Self) {
// Same Arc — nothing to copy.
if Arc::ptr_eq(&self.frames, &other.frames) {
return;
}
for (key, frame) in other.snapshot() {
let missing = self
.frames
.lock()
.map(|g| !g.contains_key(&key))
.unwrap_or(true);
if missing {
self.set(key, frame.width, frame.height, frame.rgba);
}
}
}
/// Snapshot of all latest frames (for UI paint).
pub fn snapshot(&self) -> Vec<(String, RgbaVideoFrame)> {
self.frames
.lock()
.map(|g| g.iter().map(|(k, v)| (k.clone(), v.clone())).collect())
.unwrap_or_default()
}
pub fn is_empty(&self) -> bool {
self.frames.lock().map(|g| g.is_empty()).unwrap_or(true)
}
pub fn len(&self) -> usize {
self.frames.lock().map(|g| g.len()).unwrap_or(0)
}
}
/// Ensure every pixel has alpha = 255 (opaque). Cheap in-place when already opaque.
fn force_opaque_rgba(rgba: Arc<[u8]>) -> Arc<[u8]> {
Arc::from(opaque_rgba_bytes(rgba.as_ref()))
}
/// Force every alpha byte to 255 for egui texture upload.
///
/// Camera / OBS virtual paths sometimes deliver `A=0`; unpremultiplied upload
/// then paints a fully transparent tile (looks like a blank square).
pub fn opaque_rgba_bytes(rgba: &[u8]) -> Vec<u8> {
let mut v = rgba.to_vec();
for a in v.iter_mut().skip(3).step_by(4) {
*a = 255;
}
v
}
/// Pad/truncate to `width * height * 4` and force opaque alpha — used by the
/// call tile texture path so A=0 frames cannot paint transparent.
pub fn prepare_opaque_rgba_for_upload(width: usize, height: usize, rgba: &[u8]) -> Vec<u8> {
let n = width.saturating_mul(height).saturating_mul(4);
let mut buf = vec![0u8; n];
let copy = rgba.len().min(n);
buf[..copy].copy_from_slice(&rgba[..copy]);
for a in buf.iter_mut().skip(3).step_by(4) {
*a = 255;
}
buf
}
/// Live mic input level (0.0..=1.0) shared between the capture thread and UI.
///
/// Updated from PCM samples *before* mute silence is applied, so the meter
/// still moves while muted (useful for checking that the mic works).
#[derive(Clone, Default)]
pub struct MicLevel {
/// Envelope 0.0..=1.0 stored as f32 bits.
bits: Arc<AtomicU32>,
}
impl fmt::Debug for MicLevel {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("MicLevel")
.field("level", &self.get())
.finish()
}
}
impl MicLevel {
pub fn new() -> Self {
Self::default()
}
pub fn get(&self) -> f32 {
f32::from_bits(self.bits.load(Ordering::Relaxed)).clamp(0.0, 1.0)
}
pub fn set(&self, level: f32) {
self.bits
.store(level.clamp(0.0, 1.0).to_bits(), Ordering::Relaxed);
}
pub fn clear(&self) {
self.set(0.0);
}
/// Update from a PCM buffer: peak+RMS blend with soft attack / release.
pub fn observe(&self, samples: &[f32]) {
if samples.is_empty() {
// Slow release when the capture thread is idle.
let prev = self.get();
self.set(prev * 0.85);
return;
}
let mut sum_sq = 0.0f32;
let mut peak = 0.0f32;
for &s in samples {
let a = s.abs();
if a > peak {
peak = a;
}
sum_sq += s * s;
}
let rms = (sum_sq / samples.len() as f32).sqrt();
// Speech is well below full-scale; blend + expand quiet levels.
let combined = (0.65 * rms + 0.35 * peak).min(1.0);
let linear = combined.sqrt().clamp(0.0, 1.0);
let prev = self.get();
let next = if linear > prev {
// Fast attack so peaks register immediately.
prev + (linear - prev) * 0.55
} else {
// Slower release so the bar doesn't flicker.
prev * 0.88 + linear * 0.12
};
self.set(next);
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum MediaStatus {
/// Not dialing the SFU yet (or signaling-only platforms).
Idle,
/// MoQ connect in flight.
Connecting,
/// Publishing / receiving media.
Live,
/// Connect failed; call signaling may still be active.
Failed(String),
/// Legacy: native MoQ was unavailable (pre-Android media plane).
/// Kept for status matching; no longer emitted by the dial path.
BrowserOnly,
}
impl MediaStatus {
pub fn label(&self) -> String {
match self {
Self::Idle => "Not connected".into(),
Self::Connecting => "Connecting media…".into(),
Self::Live => "In call".into(),
Self::Failed(e) => format!("Media: {e}"),
Self::BrowserOnly => "Open in browser for media".into(),
}
}
}
/// Parse the winning session id from a start-collision reason string.
///
/// freeq formats these as:
/// `Channel #test already has an active session: 01KYRJEW9XCSYB2T10HM9RE1VN`
/// Prefer `+freeq.at/av-id` when present; this is a belt-and-suspenders fallback.
pub fn session_id_from_collision_reason(reason: &str) -> Option<String> {
const MARKER: &str = "already has an active session:";
let idx = reason.to_ascii_lowercase().find(MARKER)?;
// Use original slice with same index (marker is ASCII).
let rest = reason.get(idx + MARKER.len()..)?.trim();
let id = rest.split_whitespace().next()?.trim();
if id.is_empty() {
None
} else {
Some(id.to_string())
}
}
/// Parse the channel name from a start-collision reason (`Channel #foo already…`).
pub fn channel_from_collision_reason(reason: &str) -> Option<String> {
let rest = reason
.strip_prefix("Channel ")
.or_else(|| reason.strip_prefix("channel "))?;
let ch = rest.split_whitespace().next()?.trim();
if ch.starts_with('#') || ch.starts_with('&') {
Some(ch.to_string())
} else {
None
}
}
/// Build the MoQ SFU dial URL from the IRC server host.
///
/// Examples:
/// - `irc.freeq.at:6697` → `https://irc.freeq.at/av/moq`
/// - `wss://irc.freeq.at/irc` → `https://irc.freeq.at/av/moq`
///
/// When `jwt` is set, appends `?jwt=…` (required when the SFU enforces tokens).
/// Prefer [`sfu_moq_dial_url`] when you also have a per-call instance id
/// (`?inst=…`, freeq-app / freeq SFU media-revocation parity).
pub fn sfu_moq_url(server: &str, jwt: Option<&str>) -> Result<url::Url, String> {
sfu_moq_dial_url(server, jwt, None)
}
/// SFU dial URL with optional JWT + per-call instance query params.
///
/// freeq-app dials `wss://host/av/moq?inst={instance}&jwt={token}` (inst always,
/// jwt when minted). Matching that shape keeps native clients on the same
/// media-admission path as the working web client.
pub fn sfu_moq_dial_url(
server: &str,
jwt: Option<&str>,
instance: Option<&str>,
) -> Result<url::Url, String> {
let trimmed = server.trim();
if trimmed.is_empty() {
return Err("server is empty".into());
}
let normalized = if trimmed.starts_with("ws://")
|| trimmed.starts_with("wss://")
|| trimmed.starts_with("http://")
|| trimmed.starts_with("https://")
{
trimmed.to_string()
} else {
// host:port from the connect form — freeq public hosts are TLS.
let host = trimmed.split(':').next().unwrap_or(trimmed);
if host.eq_ignore_ascii_case("localhost") || host.starts_with("127.") {
format!("http://{trimmed}")
} else {
format!("https://{host}")
}
};
let mut u: url::Url = normalized
.parse()
.map_err(|e| format!("parse server for SFU: {e}"))?;
match u.scheme() {
"https" | "wss" => {
u.set_scheme("https").ok();
}
"http" | "ws" => {
u.set_scheme("http").ok();
}
other => return Err(format!("unsupported scheme for SFU: {other}")),
}
if u.host_str().map(|h| h.is_empty()).unwrap_or(true) {
return Err("server URL has no host".into());
}
u.set_path("/av/moq");
u.set_query(None);
let mut pairs: Vec<String> = Vec::new();
if let Some(inst) = instance.filter(|i| !i.is_empty()) {
pairs.push(format!("inst={}", urlencoding::encode(inst)));
}
if let Some(tok) = jwt.filter(|t| !t.is_empty()) {
// JWTs are base64url; pass through (matches freeq-sdk-ffi / freeq-app).
pairs.push(format!("jwt={tok}"));
}
if !pairs.is_empty() {
u.set_query(Some(&pairs.join("&")));
}
Ok(u)
}
/// Whether we should dial the MoQ SFU now.
///
/// Production freeq SFUs require `?jwt=…`. Dialing without a token opens a
/// connection that the SFU immediately closes — moq-lite then floods
/// `transport error err=connection closed` once per live stream. Local/dev
/// SFUs (localhost / 127.*) are allowed without a JWT.
pub fn can_dial_sfu(server: &str, jwt: Option<&str>) -> bool {
if jwt.map(|t| !t.is_empty()).unwrap_or(false) {
return true;
}
let trimmed = server.trim();
let host = if let Ok(u) = url::Url::parse(trimmed) {
u.host_str().unwrap_or("").to_string()
} else if trimmed.starts_with("ws://")
|| trimmed.starts_with("wss://")
|| trimmed.starts_with("http://")
|| trimmed.starts_with("https://")
{
// Malformed absolute URL — treat as remote (need JWT).
String::new()
} else {
trimmed
.split('/')
.next()
.unwrap_or(trimmed)
.split(':')
.next()
.unwrap_or(trimmed)
.to_string()
};
host.eq_ignore_ascii_case("localhost") || host.starts_with("127.")
}
/// MoQ broadcast path: `{session}/{nick}~{instance}`.
pub fn broadcast_path(session_id: &str, nick: &str, instance: &str) -> String {
if instance.is_empty() {
format!("{session_id}/{nick}")
} else {
format!("{session_id}/{nick}~{instance}")
}
}
/// Stable map key for a broadcast path: last segment (`nick` or `nick~instance`).
///
/// Prefer this over [`path_nick`] for frame stores so two devices with the same
/// nick do not overwrite each other.
pub fn path_key(path: &str) -> &str {
path.rsplit('/').next().unwrap_or(path)
}
/// Display nick from a broadcast path (or a [`path_key`]).
pub fn path_nick(path: &str) -> &str {
let last = path_key(path);
last.split('~').next().unwrap_or(last)
}
/// Whether an announced path belongs to this session and is not us.
pub fn should_tap(path: &str, session_id: &str, our_broadcast: &str, my_nick: &str) -> bool {
if path == our_broadcast {
return false;
}
// Session prefix filter (unscoped SFU announces everything).
let prefix = format!("{session_id}/");
if !path.starts_with(&prefix) && path != session_id {
// Also accept relative paths when scoped (`nick~inst` only).
if path.contains('/') {
return false;
}
}
let nick = path_nick(path);
if nick.eq_ignore_ascii_case(my_nick) {
return false;
}
true
}
#[cfg(test)]
mod tests {
use super::{
broadcast_path, camera_publish_at_dial, can_dial_sfu, channel_from_collision_reason,
opaque_rgba_bytes, path_key, path_nick, prepare_opaque_rgba_for_upload,
session_id_from_collision_reason, sfu_moq_dial_url, sfu_moq_url, VideoFrameStore,
LOCAL_PREVIEW_KEY,
};
use std::sync::Arc;
#[test]
fn path_key_keeps_instance_path_nick_strips() {
assert_eq!(
path_key("01SESSION/alice~phone"),
"alice~phone"
);
assert_eq!(path_nick("01SESSION/alice~phone"), "alice");
assert_eq!(path_key("01SESSION/bob"), "bob");
assert_eq!(path_nick("bob~desk"), "bob");
}
#[test]
fn opaque_rgba_bytes_forces_alpha_255_on_zero_alpha_input() {
// Two pixels: red + blue, both fully transparent (A=0).
let input = [255u8, 0, 0, 0, 0, 0, 255, 0];
let out = opaque_rgba_bytes(&input);
assert_eq!(out.len(), 8);
assert_eq!(&out[0..4], &[255, 0, 0, 255]);
assert_eq!(&out[4..8], &[0, 0, 255, 255]);
}
#[test]
fn prepare_opaque_rgba_for_upload_pads_and_forces_alpha() {
// 2×2 frame but only one pixel of data (undersized / partial buffer).
let input = [10u8, 20, 30, 0];
let out = prepare_opaque_rgba_for_upload(2, 2, &input);
assert_eq!(out.len(), 2 * 2 * 4);
assert_eq!(out[3], 255, "first pixel alpha forced");
assert_eq!(out[7], 255);
assert_eq!(out[11], 255);
assert_eq!(out[15], 255);
assert_eq!(&out[0..3], &[10, 20, 30]);
}
#[test]
fn video_frame_store_set_local_key_forces_opaque_alpha() {
let store = VideoFrameStore::new();
// 2×2 with A=0 on every pixel (the “alpha blank” failure mode).
let mut rgba = Vec::with_capacity(2 * 2 * 4);
for i in 0..4 {
rgba.extend_from_slice(&[i as u8 * 40, 80, 120, 0]);
}
store.set(LOCAL_PREVIEW_KEY, 2, 2, Arc::from(rgba));
let snap = store.snapshot();
assert_eq!(snap.len(), 1);
assert_eq!(snap[0].0, LOCAL_PREVIEW_KEY);
let frame = &snap[0].1;
assert_eq!(frame.width, 2);
assert_eq!(frame.height, 2);
assert_eq!(frame.rgba.len(), 16);
for (i, a) in frame.rgba.iter().skip(3).step_by(4).enumerate() {
assert_eq!(*a, 255, "pixel {i} alpha must be opaque after store.set");
}
// RGB preserved from input (first pixel was 0,80,120,0 → A forced).
assert_eq!(&frame.rgba[0..4], &[0, 80, 120, 255]);
}
#[test]
fn video_frame_store_seed_missing_from_copies_only_absent_keys() {
let old = VideoFrameStore::new();
let rgba: Arc<[u8]> = Arc::from([10u8, 20, 30, 255, 40, 50, 60, 255, 70, 80, 90, 255, 1, 2, 3, 255]);
old.set("eve", 2, 2, rgba.clone());
old.set(LOCAL_PREVIEW_KEY, 2, 2, rgba);
let new = VideoFrameStore::new();
// Live key already present — must not be overwritten by seed.
let live: Arc<[u8]> = Arc::from([
9u8, 9, 9, 255, 9, 9, 9, 255, 9, 9, 9, 255, 9, 9, 9, 255,
]);
new.set("eve", 2, 2, live.clone());
new.seed_missing_from(&old);
let snap = new.snapshot();
assert_eq!(snap.len(), 2);
let eve = snap.iter().find(|(k, _)| k == "eve").unwrap();
assert_eq!(eve.1.rgba.as_ref(), live.as_ref());
assert!(snap.iter().any(|(k, _)| k == LOCAL_PREVIEW_KEY));
}
#[test]
fn prepare_opaque_upload_preserves_patterned_rgb_bytes() {
// 4×4 gradient, alternating alpha 0/128/255 — every RGB byte must
// survive, alpha must become 255, and result must be non-uniform.
let (w, h) = (4usize, 4usize);
let mut input = Vec::with_capacity(w * h * 4);
for y in 0..h {
for x in 0..w {
let i = y * w + x;
let alpha = match i % 3 {
0 => 0u8,
1 => 128u8,
_ => 255u8,
};
input.extend_from_slice(&[
(x * 32) as u8,
(y * 32) as u8,
((x + y) * 16) as u8,
alpha, // varying alpha incl 0
]);
}
}
let out = prepare_opaque_rgba_for_upload(w, h, &input);
assert_eq!(out.len(), w * h * 4);
for (i, in_px) in input.chunks_exact(4).enumerate() {
let o = i * 4;
assert_eq!(out[o], in_px[0], "pixel {i} R changed");
assert_eq!(out[o + 1], in_px[1], "pixel {i} G changed");
assert_eq!(out[o + 2], in_px[2], "pixel {i} B changed");
assert_eq!(out[o + 3], 255, "pixel {i} alpha not opaque");
}
// Non-uniform: a patterned camera-like frame must stay patterned.
let first = &out[0..4];
assert!(
out.chunks_exact(4).any(|p| p != first),
"patterned input must not collapse to a uniform tile"
);
}
#[test]
fn video_frame_store_preserves_rgb_variance_for_patterned_frame() {
// Simulated camera-ish frame: horizontal gradient, real content.
let store = VideoFrameStore::new();
let (w, h) = (16u32, 2u32);
let mut rgba = Vec::with_capacity((w * h * 4) as usize);
for y in 0..h {
for x in 0..w {
rgba.extend_from_slice(&[(x * 16) as u8, (y * 120) as u8, 200u8, 0u8]);
}
}
store.set(LOCAL_PREVIEW_KEY, w, h, Arc::from(rgba));
let frame = store.snapshot().pop().unwrap().1;
// Alpha opaque, RGB unchanged, non-uniform (variance > 0).
let r_vals: Vec<u8> = frame.rgba.iter().step_by(4).copied().collect();
let min = *r_vals.iter().min().unwrap();
let max = *r_vals.iter().max().unwrap();
assert!(max > min, "real camera-like content must have pixel variance");
for a in frame.rgba.iter().skip(3).step_by(4) {
assert_eq!(*a, 255);
}
assert_eq!(frame.rgba[0], 0);
assert_eq!(frame.rgba[4], 16);
}
#[test]
fn broadcast_path_matches_freeq_mesh_shape() {
assert_eq!(
broadcast_path("01SESS", "desktop", "a1b2c3d4"),
"01SESS/desktop~a1b2c3d4"
);
assert_eq!(broadcast_path("01SESS", "guest", ""), "01SESS/guest");
}
#[test]
fn sfu_moq_url_uses_av_moq_path_and_jwt() {
let u = sfu_moq_url("irc.freeq.at:6697", Some("tok.jwt.value")).unwrap();
assert_eq!(u.scheme(), "https");
assert_eq!(u.host_str(), Some("irc.freeq.at"));
assert_eq!(u.path(), "/av/moq");
assert_eq!(u.query(), Some("jwt=tok.jwt.value"));
let bare = sfu_moq_url("wss://irc.freeq.at/irc", None).unwrap();
assert_eq!(bare.path(), "/av/moq");
assert!(bare.query().is_none());
}
#[test]
fn sfu_moq_dial_url_includes_inst_and_jwt_like_freeq_app() {
let u = sfu_moq_dial_url(
"https://irc.freeq.at",
Some("eyJhbGciOiJIUzI1NiJ9.e30.x"),
Some("deadbeef"),
)
.unwrap();
assert_eq!(u.path(), "/av/moq");
let q = u.query().unwrap_or("");
assert!(q.contains("inst=deadbeef"), "query={q}");
assert!(q.contains("jwt=eyJhbGciOiJIUzI1NiJ9.e30.x"), "query={q}");
}
#[test]
fn collision_reason_parses_session_and_channel() {
let reason = "Channel #test already has an active session: 01KYRJEW9XCSYB2T10HM9RE1VN";
assert_eq!(
session_id_from_collision_reason(reason).as_deref(),
Some("01KYRJEW9XCSYB2T10HM9RE1VN")
);
assert_eq!(
channel_from_collision_reason(reason).as_deref(),
Some("#test")
);
}
#[test]
fn collision_reason_unknown_shape() {
assert!(session_id_from_collision_reason("nope").is_none());
assert!(channel_from_collision_reason("busy").is_none());
}
#[test]
fn can_dial_sfu_remote_without_jwt_refused() {
assert!(!can_dial_sfu("wss://chat.example.com", None));
assert!(!can_dial_sfu("wss://chat.example.com", Some("")));
assert!(!can_dial_sfu("https://freeq.example/irc", None));
assert!(!can_dial_sfu("chat.example.com:8443", None));
}
#[test]
fn can_dial_sfu_localhost_without_jwt_allowed() {
assert!(can_dial_sfu("ws://localhost:4443", None));
assert!(can_dial_sfu("http://localhost/av", None));
assert!(can_dial_sfu("localhost", None));
assert!(can_dial_sfu("ws://127.0.0.1:4443", None));
assert!(can_dial_sfu("http://127.0.0.1", None));
assert!(can_dial_sfu("127.0.0.1:8080", None));
}
#[test]
fn can_dial_sfu_with_jwt_always_allowed() {
assert!(can_dial_sfu("wss://chat.example.com", Some("eyJhbGciOiJIUzI1NiJ9.e30.x")));
assert!(can_dial_sfu("https://remote.example", Some("tok")));
assert!(can_dial_sfu("ws://localhost:4443", Some("tok")));
assert!(can_dial_sfu("127.0.0.1", Some("tok")));
}
#[test]
fn camera_publish_at_dial_requires_permission() {
assert!(!camera_publish_at_dial(true, false));
assert!(camera_publish_at_dial(true, true));
assert!(!camera_publish_at_dial(false, true));
assert!(!camera_publish_at_dial(false, false));
}
/// Contract for Android JNI: CameraCapture lives in APK classes.dex and
/// must be loaded with Activity ClassLoader + Java binary name (dots).
/// `FindClass("uk/nandi/sleek/CameraCapture")` from a native worker thread
/// uses the system loader and returns ClassNotFound — which made AV report
/// "camera unavailable" even with CAMERA granted and dex injected.
#[test]
fn android_camera_capture_class_binary_name() {
assert_eq!(
"uk.nandi.sleek.CameraCapture",
"uk.nandi.sleek.CameraCapture"
);
assert!(
!"uk.nandi.sleek.CameraCapture".contains('/'),
"ClassLoader.loadClass wants dots, not JNI slashes"
);
}
}
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