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[client] audio: harden low-latency streaming

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Rework audio provider and backend lifecycles so playback and capture
callbacks quiesce without blocking real-time threads. Move activation,
teardown, controls, retries, and diagnostics onto bounded workers.

Harden USB audio cadence, feedback, and capture recovery.
Preserve source clocks through recording and pace packets from the
device clock. Bound queues, waits, conversion buffers, and packet sizes.

Make PipeWire and PulseAudio stream control thread-safe and recoverable.
Correct latency clock domains, coalesce rate updates, preserve recent
capture under overload, and keep logging outside real-time callbacks.
This commit is contained in:
Geoffrey McRae
2026-08-10 16:36:12 +10:00
parent 4434985aa3
commit 87aa61510c
13 changed files with 4795 additions and 1217 deletions
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10
client/src/overlay/status.c
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@@ -21,6 +21,7 @@
#include "interface/overlay.h"
#include "math.h"
#include "cimgui.h"
#include <stdatomic.h>
#include "../overlays.h"
#include "../main.h"
@@ -32,7 +33,7 @@
//TODO: Make this user configurable?
#define ICON_SIZE 32
static bool l_state[LG_USER_STATUS_MAX] = { 0 };
static atomic_bool l_state[LG_USER_STATUS_MAX] = { 0 };
static OverlayImage l_image[LG_USER_STATUS_MAX] = { 0 };
static bool l_recordToggle;
static double l_scale = 1.0;
@@ -92,7 +93,8 @@ static int status_render(void * udata, bool interactive, struct Rect * windowRec
for(int i = 0; i < LG_USER_STATUS_MAX; ++i)
{
OverlayImage * img = &l_image[i];
if (!l_state[i] || !img->tex)
if (!atomic_load_explicit(&l_state[i], memory_order_relaxed) ||
!img->tex)
continue;
// if the recording indicator is off, don't draw but reserve space
@@ -147,9 +149,9 @@ struct LG_OverlayOps LGOverlayStatus =
void overlayStatus_set(LGUserStatus status, bool value)
{
if (l_state[status] == value)
if (atomic_exchange_explicit(
&l_state[status], value, memory_order_relaxed) == value)
return;
l_state[status] = value;
app_invalidateOverlay(true);
};