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Diffstat (limited to 'src/audio/miniaudio_backend.cc')
-rw-r--r--src/audio/miniaudio_backend.cc100
1 files changed, 63 insertions, 37 deletions
diff --git a/src/audio/miniaudio_backend.cc b/src/audio/miniaudio_backend.cc
index c2db268..baaf9bb 100644
--- a/src/audio/miniaudio_backend.cc
+++ b/src/audio/miniaudio_backend.cc
@@ -7,12 +7,12 @@
#include "ring_buffer.h"
#include "util/debug.h"
#include <stdio.h>
-#include <stdlib.h> // for abort()
+#include <stdlib.h> // for abort()
// Static callback for miniaudio (C API requirement)
void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
- const void* pInput,
- ma_uint32 frameCount) {
+ const void* pInput,
+ ma_uint32 frameCount) {
(void)pInput;
#if defined(DEBUG_LOG_AUDIO)
@@ -33,25 +33,30 @@ void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
double now = ts.tv_sec + ts.tv_nsec / 1000000000.0;
if (timing_initialized) {
- double delta = (now - last_time) * 1000.0; // ms
+ double delta = (now - last_time) * 1000.0; // ms
double expected = ((double)frameCount / pDevice->sampleRate) * 1000.0;
double jitter = delta - expected;
// Enhanced logging: Log first 20 callbacks in detail, then periodic summary
if (callback_number <= 20 || callback_number % 50 == 0) {
- const double elapsed_by_frames = (double)total_frames_requested / pDevice->sampleRate * 1000.0;
- const double elapsed_by_time = now * 1000.0; // Convert to ms
- DEBUG_AUDIO("[CB#%llu] frameCount=%u, Delta=%.2fms, Expected=%.2fms, Jitter=%.2fms, "
- "TotalFrames=%llu (%.1fms), TotalTime=%.1fms, Drift=%.2fms\n",
- callback_number, frameCount, delta, expected, jitter,
- total_frames_requested, elapsed_by_frames, elapsed_by_time,
- elapsed_by_time - elapsed_by_frames);
+ const double elapsed_by_frames =
+ (double)total_frames_requested / pDevice->sampleRate * 1000.0;
+ const double elapsed_by_time = now * 1000.0; // Convert to ms
+ DEBUG_AUDIO(
+ "[CB#%llu] frameCount=%u, Delta=%.2fms, Expected=%.2fms, "
+ "Jitter=%.2fms, "
+ "TotalFrames=%llu (%.1fms), TotalTime=%.1fms, Drift=%.2fms\n",
+ callback_number, frameCount, delta, expected, jitter,
+ total_frames_requested, elapsed_by_frames, elapsed_by_time,
+ elapsed_by_time - elapsed_by_frames);
}
// Detect large timing anomalies (>5ms off from expected)
if (fabs(jitter) > 5.0) {
- DEBUG_AUDIO("[TIMING ANOMALY] CB#%llu Delta=%.2fms, Expected=%.2fms, Jitter=%.2fms\n",
- callback_number, delta, expected, jitter);
+ DEBUG_AUDIO(
+ "[TIMING ANOMALY] CB#%llu Delta=%.2fms, Expected=%.2fms, "
+ "Jitter=%.2fms\n",
+ callback_number, delta, expected, jitter);
}
}
last_time = now;
@@ -81,8 +86,10 @@ void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
if (pDevice->sampleRate != 32000) {
static int rate_warning = 0;
if (rate_warning++ == 0) {
- DEBUG_AUDIO("WARNING: Device sample rate is %u, not 32000! Resampling may occur.\n",
- pDevice->sampleRate);
+ DEBUG_AUDIO(
+ "WARNING: Device sample rate is %u, not 32000! Resampling may "
+ "occur.\n",
+ pDevice->sampleRate);
}
}
#endif /* defined(DEBUG_LOG_AUDIO) */
@@ -91,14 +98,15 @@ void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
// BOUNDS CHECK: Sanity check on frameCount
if (frameCount > 8192 || frameCount == 0) {
- fprintf(stderr, "AUDIO CALLBACK ERROR: frameCount=%u (unreasonable!)\n", frameCount);
+ fprintf(stderr, "AUDIO CALLBACK ERROR: frameCount=%u (unreasonable!)\n",
+ frameCount);
abort();
}
// Read from ring buffer instead of calling synth directly
AudioRingBuffer* ring_buffer = audio_get_ring_buffer();
if (ring_buffer != nullptr) {
- const int samples_to_read = (int)frameCount * 2; // Stereo
+ const int samples_to_read = (int)frameCount * 2; // Stereo
#if defined(DEBUG_LOG_RING_BUFFER)
// Track buffer level and detect drops
@@ -108,20 +116,24 @@ void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
if (available < min_available) {
min_available = available;
DEBUG_RING_BUFFER("[BUFFER] CB#%llu NEW MIN: available=%d (%.1fms)\n",
- callback_number, available, (float)available / (32000.0f * 2.0f) * 1000.0f);
+ callback_number, available,
+ (float)available / (32000.0f * 2.0f) * 1000.0f);
}
// Log buffer state for first 20 callbacks and periodically
if (callback_number <= 20 || callback_number % 50 == 0) {
- DEBUG_RING_BUFFER("[BUFFER] CB#%llu requested=%d, available=%d (%.1fms), min=%d\n",
- callback_number, samples_to_read, available,
- (float)available / (32000.0f * 2.0f) * 1000.0f, min_available);
+ DEBUG_RING_BUFFER(
+ "[BUFFER] CB#%llu requested=%d, available=%d (%.1fms), min=%d\n",
+ callback_number, samples_to_read, available,
+ (float)available / (32000.0f * 2.0f) * 1000.0f, min_available);
}
// CRITICAL: Verify we have enough samples
if (available < samples_to_read) {
- DEBUG_RING_BUFFER("[BUFFER UNDERRUN] CB#%llu requested=%d, available=%d, SHORT=%d\n",
- callback_number, samples_to_read, available, samples_to_read - available);
+ DEBUG_RING_BUFFER(
+ "[BUFFER UNDERRUN] CB#%llu requested=%d, available=%d, SHORT=%d\n",
+ callback_number, samples_to_read, available,
+ samples_to_read - available);
}
#endif /* defined(DEBUG_LOG_RING_BUFFER) */
@@ -129,8 +141,11 @@ void MiniaudioBackend::audio_callback(ma_device* pDevice, void* pOutput,
#if defined(DEBUG_LOG_RING_BUFFER)
if (actually_read < samples_to_read) {
- DEBUG_RING_BUFFER("[PARTIAL READ] CB#%llu requested=%d, got=%d, padded=%d with silence\n",
- callback_number, samples_to_read, actually_read, samples_to_read - actually_read);
+ DEBUG_RING_BUFFER(
+ "[PARTIAL READ] CB#%llu requested=%d, got=%d, padded=%d with "
+ "silence\n",
+ callback_number, samples_to_read, actually_read,
+ samples_to_read - actually_read);
}
#endif /* defined(DEBUG_LOG_RING_BUFFER) */
}
@@ -171,8 +186,8 @@ void MiniaudioBackend::init() {
config.performanceProfile = ma_performance_profile_conservative;
// Let Core Audio choose the period size based on conservative profile
- config.periodSizeInFrames = 0; // 0 = let backend decide
- config.periods = 0; // 0 = let backend decide based on performance profile
+ config.periodSizeInFrames = 0; // 0 = let backend decide
+ config.periods = 0; // 0 = let backend decide based on performance profile
config.dataCallback = MiniaudioBackend::audio_callback;
config.pUserData = this;
@@ -187,23 +202,34 @@ void MiniaudioBackend::init() {
DEBUG_AUDIO("\n=== MINIAUDIO DEVICE CONFIGURATION ===\n");
DEBUG_AUDIO(" Sample rate: %u (requested: 32000)\n", device_.sampleRate);
DEBUG_AUDIO(" Channels: %u (requested: 2)\n", device_.playback.channels);
- DEBUG_AUDIO(" Format: %d (requested: %d, f32=%d)\n",
- device_.playback.format, config.playback.format, ma_format_f32);
+ DEBUG_AUDIO(" Format: %d (requested: %d, f32=%d)\n", device_.playback.format,
+ config.playback.format, ma_format_f32);
DEBUG_AUDIO(" Period size: %u frames (%.1fms at %uHz)\n",
device_.playback.internalPeriodSizeInFrames,
- (float)device_.playback.internalPeriodSizeInFrames / device_.sampleRate * 1000.0f,
+ (float)device_.playback.internalPeriodSizeInFrames /
+ device_.sampleRate * 1000.0f,
device_.sampleRate);
- DEBUG_AUDIO(" Periods: %u (buffer multiplier)\n", device_.playback.internalPeriods);
- DEBUG_AUDIO(" Backend: %s\n", ma_get_backend_name(device_.pContext->backend));
+ DEBUG_AUDIO(" Periods: %u (buffer multiplier)\n",
+ device_.playback.internalPeriods);
+ DEBUG_AUDIO(" Backend: %s\n",
+ ma_get_backend_name(device_.pContext->backend));
DEBUG_AUDIO(" Total buffer size: %u frames (%.2fms) [period * periods]\n",
- device_.playback.internalPeriodSizeInFrames * device_.playback.internalPeriods,
- (float)(device_.playback.internalPeriodSizeInFrames * device_.playback.internalPeriods) / device_.sampleRate * 1000.0f);
+ device_.playback.internalPeriodSizeInFrames *
+ device_.playback.internalPeriods,
+ (float)(device_.playback.internalPeriodSizeInFrames *
+ device_.playback.internalPeriods) /
+ device_.sampleRate * 1000.0f);
// Calculate expected callback interval
if (device_.playback.internalPeriodSizeInFrames > 0) {
- const float expected_callback_ms = (float)device_.playback.internalPeriodSizeInFrames / device_.sampleRate * 1000.0f;
- DEBUG_AUDIO(" Expected callback interval: %.2fms (based on period size)\n", expected_callback_ms);
- DEBUG_AUDIO(" WARNING: If actual callback interval differs, audio corruption may occur!\n");
+ const float expected_callback_ms =
+ (float)device_.playback.internalPeriodSizeInFrames /
+ device_.sampleRate * 1000.0f;
+ DEBUG_AUDIO(" Expected callback interval: %.2fms (based on period size)\n",
+ expected_callback_ms);
+ DEBUG_AUDIO(
+ " WARNING: If actual callback interval differs, audio corruption may "
+ "occur!\n");
}
DEBUG_AUDIO("======================================\n\n");
fflush(stderr);
generated by cgit v1.2.3 (git 2.51.0) at 2026-02-06 07:45:32 +0000