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kvm/internal/audio/core_config_constants.go

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package audio
import (
"time"
"github.com/jetkvm/kvm/internal/logging"
)
// AudioConfigConstants centralizes all hardcoded values used across audio components.
// This configuration system allows runtime tuning of audio performance, quality, and resource usage.
type AudioConfigConstants struct {
// Audio Quality Presets
MaxAudioFrameSize int // Maximum audio frame size in bytes (default: 4096)
MaxPCMBufferSize int // Maximum PCM buffer size in bytes for separate buffer optimization
// Opus Encoding Parameters
OpusBitrate int // Target bitrate for Opus encoding in bps (default: 128000)
OpusComplexity int // Computational complexity 0-10 (default: 10 for best quality)
OpusVBR int // Variable Bit Rate: 0=CBR, 1=VBR (default: 1)
OpusVBRConstraint int // VBR constraint: 0=unconstrained, 1=constrained (default: 0)
OpusDTX int // Discontinuous Transmission: 0=disabled, 1=enabled (default: 0)
// Audio Parameters
SampleRate int // Audio sampling frequency in Hz (default: 48000)
Channels int // Number of audio channels: 1=mono, 2=stereo (default: 2)
FrameSize int // Samples per audio frame (default: 960 for 20ms at 48kHz)
MaxPacketSize int // Maximum encoded packet size in bytes (default: 4000)
// Optimal Audio Configuration (S16_LE @ 48kHz stereo from HDMI)
// Single optimized setting - no quality presets needed
OptimalOutputBitrate int // Output bitrate: 96 kbps (optimal for stereo @ 48kHz)
OptimalInputBitrate int // Input bitrate: 48 kbps (optimal for mono mic @ 48kHz)
// Optimal OPUS Encoder Parameters (minimal CPU usage)
OptimalOpusComplexity int // Complexity: 1 (minimal CPU ~0.5%)
OptimalOpusVBR int // VBR: enabled for efficiency
OptimalOpusSignalType int // Signal: OPUS_SIGNAL_MUSIC (3002)
OptimalOpusBandwidth int // Bandwidth: WIDEBAND (1103 = native 48kHz)
OptimalOpusDTX int // DTX: disabled for continuous audio
// CGO Audio Constants
CGOOpusBitrate int // Native Opus encoder bitrate in bps (default: 96000)
CGOOpusComplexity int // Computational complexity for native Opus encoder (0-10)
CGOOpusVBR int // Variable Bit Rate in native Opus encoder (0=CBR, 1=VBR)
CGOOpusVBRConstraint int // Constrained VBR in native encoder (0/1)
CGOOpusSignalType int // Signal type hint for native Opus encoder
CGOOpusBandwidth int // Frequency bandwidth for native Opus encoder
CGOOpusDTX int // Discontinuous Transmission in native encoder (0/1)
CGOSampleRate int // Sample rate for native audio processing (Hz)
CGOChannels int // Channel count for native audio processing
CGOFrameSize int // Frame size for native Opus processing (samples)
CGOMaxPacketSize int // Maximum packet size for native encoding (bytes)
// Input IPC Constants
InputIPCSampleRate int // Sample rate for input IPC audio processing (Hz)
InputIPCChannels int // Channel count for input IPC audio processing
InputIPCFrameSize int // Frame size for input IPC processing (samples)
// Output IPC Constants
OutputMaxFrameSize int // Maximum frame size for output processing (bytes)
OutputHeaderSize int // Size of output message headers (bytes)
OutputMessagePoolSize int // Output message pool size (128)
// Socket Buffer Constants
SocketOptimalBuffer int // Optimal socket buffer size (128KB)
SocketMaxBuffer int // Maximum socket buffer size (256KB)
SocketMinBuffer int // Minimum socket buffer size (32KB)
// Process Management
MaxRestartAttempts int // Maximum restart attempts (5)
RestartWindow time.Duration // Restart attempt window (5m)
RestartDelay time.Duration // Initial restart delay (2s)
MaxRestartDelay time.Duration // Maximum restart delay (30s)
// Buffer Management
MaxPoolSize int
MessagePoolSize int
OptimalSocketBuffer int
MaxSocketBuffer int
MinSocketBuffer int
ChannelBufferSize int
AudioFramePoolSize int
PageSize int
InitialBufferFrames int
BytesToMBDivisor int
MinReadEncodeBuffer int
MaxDecodeWriteBuffer int
MinBatchSizeForThreadPinning int
MagicNumber uint32
MaxFrameSize int
WriteTimeout time.Duration
HeaderSize int
MetricsUpdateInterval time.Duration
WarmupSamples int
MetricsChannelBuffer int
LatencyHistorySize int
MaxCPUPercent float64
MinCPUPercent float64
DefaultClockTicks float64
DefaultMemoryGB int
MaxWarmupSamples int
WarmupCPUSamples int
LogThrottleIntervalSec int
MinValidClockTicks int
MaxValidClockTicks int
CPUFactor float64
MemoryFactor float64
LatencyFactor float64
// Timing Configuration
RetryDelay time.Duration // Retry delay
MaxRetryDelay time.Duration // Maximum retry delay
BackoffMultiplier float64 // Backoff multiplier
MaxConsecutiveErrors int // Maximum consecutive errors
DefaultSleepDuration time.Duration // 100ms
ShortSleepDuration time.Duration // 10ms
LongSleepDuration time.Duration // 200ms
DefaultTickerInterval time.Duration // 100ms
BufferUpdateInterval time.Duration // 500ms
InputSupervisorTimeout time.Duration // 5s
OutputSupervisorTimeout time.Duration // 5s
BatchProcessingDelay time.Duration // 10ms
// System threshold configuration for buffer management
LowCPUThreshold float64 // CPU usage threshold for performance optimization
HighCPUThreshold float64 // CPU usage threshold for performance limits
LowMemoryThreshold float64 // 50% memory threshold
HighMemoryThreshold float64 // 75% memory threshold
CooldownPeriod time.Duration // 30s cooldown period
RollbackThreshold time.Duration // 300ms rollback threshold
MaxLatencyThreshold time.Duration // 200ms max latency
JitterThreshold time.Duration // 20ms jitter threshold
LatencyOptimizationInterval time.Duration // 5s optimization interval
MicContentionTimeout time.Duration // 200ms contention timeout
PreallocPercentage int // 20% preallocation percentage
BackoffStart time.Duration // 50ms initial backoff
InputMagicNumber uint32 // Magic number for input IPC messages (0x4A4B4D49 "JKMI")
OutputMagicNumber uint32 // Magic number for output IPC messages (0x4A4B4F55 "JKOU")
// Calculation Constants
PercentageMultiplier float64 // Multiplier for percentage calculations (100.0)
AveragingWeight float64 // Weight for weighted averaging (0.7)
ScalingFactor float64 // General scaling factor (1.5)
CPUMemoryWeight float64 // Weight for CPU factor in calculations (0.5)
MemoryWeight float64 // Weight for memory factor (0.3)
LatencyWeight float64 // Weight for latency factor (0.2)
PoolGrowthMultiplier int // Multiplier for pool size growth (2)
LatencyScalingFactor float64 // Scaling factor for latency calculations (2.0)
OptimizerAggressiveness float64 // Aggressiveness level for optimization (0.7)
// CGO Audio Processing Constants
CGOUsleepMicroseconds int // Sleep duration for CGO usleep calls (1000μs)
CGOPCMBufferSize int // PCM buffer size for CGO audio processing
CGONanosecondsPerSecond float64 // Nanoseconds per second conversion
// Output Streaming Constants
OutputStreamingFrameIntervalMS int // Output frame interval (20ms for 50 FPS)
// IPC Constants
IPCInitialBufferFrames int // Initial IPC buffer size (500 frames)
EventTimeoutSeconds int
EventTimeFormatString string
EventSubscriptionDelayMS int
InputProcessingTimeoutMS int
InputSocketName string
OutputSocketName string
AudioInputComponentName string
AudioOutputComponentName string
AudioServerComponentName string
AudioRelayComponentName string
AudioEventsComponentName string
TestSocketTimeout time.Duration
TestBufferSize int
TestRetryDelay time.Duration
LatencyHistogramMaxSamples int
LatencyPercentile50 int
LatencyPercentile95 int
LatencyPercentile99 int
// Buffer Pool Configuration
BufferPoolDefaultSize int // Default buffer pool size when MaxPoolSize is invalid
BufferPoolControlSize int // Control buffer pool size
ZeroCopyPreallocSizeBytes int // Zero-copy frame pool preallocation size in bytes
ZeroCopyMinPreallocFrames int // Minimum preallocated frames for zero-copy pool
BufferPoolHitRateBase float64 // Base for hit rate percentage calculation
HitRateCalculationBase float64
MaxLatency time.Duration
MinMetricsUpdateInterval time.Duration
MaxMetricsUpdateInterval time.Duration
MinSampleRate int
MaxSampleRate int
MaxChannels int
// CGO Constants
CGOMaxBackoffMicroseconds int // Maximum CGO backoff time (500ms)
CGOMaxAttempts int // Maximum CGO retry attempts (5)
// Frame Duration Validation
MinFrameDuration time.Duration // Minimum frame duration (10ms)
MaxFrameDuration time.Duration // Maximum frame duration (100ms)
// Valid Sample Rates
// Validation Constants
ValidSampleRates []int // Supported sample rates (8kHz to 48kHz)
MinOpusBitrate int // Minimum Opus bitrate (6000 bps)
MaxOpusBitrate int // Maximum Opus bitrate (510000 bps)
MaxValidationTime time.Duration // Validation timeout (5s)
MinFrameSize int // Minimum frame size (64 bytes)
FrameSizeTolerance int // Frame size tolerance (512 bytes)
// Latency Histogram Buckets
LatencyBucket10ms time.Duration // 10ms latency bucket
LatencyBucket25ms time.Duration // 25ms latency bucket
LatencyBucket50ms time.Duration // 50ms latency bucket
LatencyBucket100ms time.Duration // 100ms latency bucket
LatencyBucket250ms time.Duration // 250ms latency bucket
LatencyBucket500ms time.Duration // 500ms latency bucket
LatencyBucket1s time.Duration // 1s latency bucket
LatencyBucket2s time.Duration // 2s latency bucket
MaxAudioProcessorWorkers int
MaxAudioReaderWorkers int
AudioProcessorQueueSize int
AudioReaderQueueSize int
WorkerMaxIdleTime time.Duration
// Connection Retry Configuration
MaxConnectionAttempts int // Maximum connection retry attempts
ConnectionRetryDelay time.Duration // Initial connection retry delay
MaxConnectionRetryDelay time.Duration // Maximum connection retry delay
ConnectionBackoffFactor float64 // Connection retry backoff factor
ConnectionTimeoutDelay time.Duration // Connection timeout for each attempt
ReconnectionInterval time.Duration // Interval for automatic reconnection attempts
HealthCheckInterval time.Duration // Health check interval for connections
// Quality Change Timeout Configuration
QualityChangeSupervisorTimeout time.Duration // Timeout for supervisor stop during quality changes
QualityChangeTickerInterval time.Duration // Ticker interval for supervisor stop polling
QualityChangeSettleDelay time.Duration // Delay for quality change to settle
QualityChangeRecoveryDelay time.Duration // Delay before attempting recovery
}
// DefaultAudioConfig returns the default configuration constants
// These values are carefully chosen based on JetKVM's embedded ARM environment,
// real-time audio requirements, and extensive testing for optimal performance.
func DefaultAudioConfig() *AudioConfigConstants {
return &AudioConfigConstants{
// Audio Quality Presets
MaxAudioFrameSize: 4096,
MaxPCMBufferSize: 8192, // Default PCM buffer size (2x MaxAudioFrameSize for safety)
// Opus Encoding Parameters
OpusBitrate: 128000,
OpusComplexity: 10,
OpusVBR: 1,
OpusVBRConstraint: 0,
OpusDTX: 0,
// Audio Parameters
SampleRate: 48000,
Channels: 2,
FrameSize: 960,
MaxPacketSize: 4000,
// Optimal Audio Configuration (single setting for all use cases)
OptimalOutputBitrate: 96, // 96 kbps for stereo @ 48kHz
OptimalInputBitrate: 48, // 48 kbps for mono mic @ 48kHz
OptimalOpusComplexity: 1, // Complexity 1: minimal CPU (~0.5%)
OptimalOpusVBR: 1, // VBR enabled for efficiency
OptimalOpusSignalType: 3002, // OPUS_SIGNAL_MUSIC
OptimalOpusBandwidth: 1103, // OPUS_BANDWIDTH_WIDEBAND (native 48kHz)
OptimalOpusDTX: 0, // DTX disabled for continuous audio
// CGO Audio Constants - Optimized for S16_LE @ 48kHz with minimal CPU
CGOOpusBitrate: 96000, // 96 kbps optimal for stereo @ 48kHz
CGOOpusComplexity: 1, // Complexity 1: minimal CPU (~0.5% on RV1106)
CGOOpusVBR: 1, // VBR enabled for efficiency
CGOOpusVBRConstraint: 1, // Constrained VBR for predictable bitrate
CGOOpusSignalType: -1000, // OPUS_AUTO (automatic voice/music detection)
CGOOpusBandwidth: 1103, // OPUS_BANDWIDTH_WIDEBAND (native 48kHz, no resampling)
CGOOpusDTX: 0, // DTX disabled for continuous audio
CGOSampleRate: 48000, // 48 kHz native HDMI sample rate
CGOChannels: 2, // Stereo
CGOFrameSize: 960, // 20ms frames at 48kHz
CGOMaxPacketSize: 1500, // Standard Ethernet MTU
// Input IPC Constants
InputIPCSampleRate: 48000, // Input IPC sample rate (48kHz)
InputIPCChannels: 2, // Input IPC channels (stereo)
InputIPCFrameSize: 960, // Input IPC frame size (960 samples)
// Output IPC Constants
OutputMaxFrameSize: 4096, // Maximum output frame size
OutputHeaderSize: 17, // Output frame header size
OutputMessagePoolSize: 128, // Output message pool size
// Socket Buffer Constants
SocketOptimalBuffer: 131072, // 128KB optimal socket buffer
SocketMaxBuffer: 262144, // 256KB maximum socket buffer
SocketMinBuffer: 32768, // 32KB minimum socket buffer
// Process Management
MaxRestartAttempts: 5, // Maximum restart attempts
RestartWindow: 5 * time.Minute, // Time window for restart attempt counting
RestartDelay: 1 * time.Second, // Initial delay before restart attempts
MaxRestartDelay: 30 * time.Second, // Maximum delay for exponential backoff
// Buffer Management
MaxPoolSize: 100, // Maximum object pool size
MessagePoolSize: 1024, // Significantly increased message pool for quality change bursts
OptimalSocketBuffer: 262144, // 256KB optimal socket buffer
MaxSocketBuffer: 1048576, // 1MB maximum socket buffer
MinSocketBuffer: 8192, // 8KB minimum socket buffer
ChannelBufferSize: 2048, // Significantly increased channel buffer for quality change bursts
AudioFramePoolSize: 1500, // Audio frame object pool size
PageSize: 4096, // Memory page size for alignment
InitialBufferFrames: 1000, // Increased initial buffer size during startup
BytesToMBDivisor: 1024 * 1024, // Byte to megabyte conversion
MinReadEncodeBuffer: 1276, // Minimum CGO read/encode buffer
MaxDecodeWriteBuffer: 4096, // Maximum CGO decode/write buffer
// IPC Configuration - Balanced for stability
MagicNumber: 0xDEADBEEF, // IPC message validation header
MaxFrameSize: 4096, // Maximum audio frame size (4KB)
WriteTimeout: 1000 * time.Millisecond, // Further increased timeout to handle quality change bursts
HeaderSize: 8, // IPC message header size
// Monitoring and Metrics - Balanced for stability
MetricsUpdateInterval: 1000 * time.Millisecond, // Stable metrics collection frequency
WarmupSamples: 10, // Adequate warmup samples for accuracy
MetricsChannelBuffer: 100, // Adequate metrics data channel buffer
LatencyHistorySize: 100, // Adequate latency measurements to keep
// Process Monitoring Constants
MaxCPUPercent: 100.0, // Maximum CPU percentage
MinCPUPercent: 0.01, // Minimum CPU percentage
DefaultClockTicks: 250.0, // Default clock ticks for embedded ARM systems
DefaultMemoryGB: 8, // Default memory in GB
MaxWarmupSamples: 3, // Maximum warmup samples
WarmupCPUSamples: 2, // CPU warmup samples
LogThrottleIntervalSec: 10, // Log throttle interval in seconds
MinValidClockTicks: 50, // Minimum valid clock ticks
MaxValidClockTicks: 1000, // Maximum valid clock ticks
// Performance Tuning
CPUFactor: 0.7, // CPU weight in performance calculations
MemoryFactor: 0.8, // Memory weight in performance calculations
LatencyFactor: 0.9, // Latency weight in performance calculations
// Error Handling
RetryDelay: 100 * time.Millisecond, // Initial retry delay
MaxRetryDelay: 5 * time.Second, // Maximum retry delay
BackoffMultiplier: 2.0, // Exponential backoff multiplier
MaxConsecutiveErrors: 5, // Consecutive error threshold
// Connection Retry Configuration
MaxConnectionAttempts: 15, // Maximum connection retry attempts
ConnectionRetryDelay: 50 * time.Millisecond, // Initial connection retry delay
MaxConnectionRetryDelay: 2 * time.Second, // Maximum connection retry delay
ConnectionBackoffFactor: 1.5, // Connection retry backoff factor
ConnectionTimeoutDelay: 5 * time.Second, // Connection timeout for each attempt
ReconnectionInterval: 30 * time.Second, // Interval for automatic reconnection attempts
HealthCheckInterval: 10 * time.Second, // Health check interval for connections
// Quality Change Timeout Configuration
QualityChangeSupervisorTimeout: 5 * time.Second, // Timeout for supervisor stop during quality changes
QualityChangeTickerInterval: 100 * time.Millisecond, // Ticker interval for supervisor stop polling
QualityChangeSettleDelay: 2 * time.Second, // Delay for quality change to settle
QualityChangeRecoveryDelay: 1 * time.Second, // Delay before attempting recovery
// Timing Constants - Optimized for quality change stability
DefaultSleepDuration: 100 * time.Millisecond, // Balanced polling interval
ShortSleepDuration: 10 * time.Millisecond, // Balanced high-frequency polling
LongSleepDuration: 200 * time.Millisecond, // Balanced background task delay
DefaultTickerInterval: 100 * time.Millisecond, // Balanced periodic task interval
BufferUpdateInterval: 250 * time.Millisecond, // Faster buffer size update frequency
InputSupervisorTimeout: 5 * time.Second, // Input monitoring timeout
OutputSupervisorTimeout: 5 * time.Second, // Output monitoring timeout
BatchProcessingDelay: 5 * time.Millisecond, // Reduced batch processing delay
// System Load Configuration - Optimized for single-core RV1106G3
LowCPUThreshold: 0.40, // Adjusted for single-core ARM system
HighCPUThreshold: 0.75, // Adjusted for single-core RV1106G3 (current load ~64%)
LowMemoryThreshold: 0.60,
HighMemoryThreshold: 0.85, // Adjusted for 200MB total memory system
CooldownPeriod: 15 * time.Second, // Reduced cooldown period
RollbackThreshold: 200 * time.Millisecond, // Lower rollback threshold
MaxLatencyThreshold: 150 * time.Millisecond, // Lower max latency threshold
JitterThreshold: 15 * time.Millisecond, // Reduced jitter threshold
LatencyOptimizationInterval: 3 * time.Second, // More frequent optimization
// Microphone Contention Configuration
MicContentionTimeout: 200 * time.Millisecond,
// Buffer Pool Configuration
PreallocPercentage: 20,
// Sleep and Backoff Configuration
BackoffStart: 50 * time.Millisecond,
// Protocol Magic Numbers
InputMagicNumber: 0x4A4B4D49, // "JKMI" (JetKVM Microphone Input)
OutputMagicNumber: 0x4A4B4F55, // "JKOU" (JetKVM Output)
// Calculation Constants
PercentageMultiplier: 100.0, // Standard percentage conversion (0.5 * 100 = 50%)
AveragingWeight: 0.7, // Weight for smoothing values (70% recent, 30% historical)
ScalingFactor: 1.5, // General scaling factor for adaptive adjustments
CPUMemoryWeight: 0.5, // CPU factor weight in combined calculations
MemoryWeight: 0.3, // Memory factor weight in combined calculations
LatencyWeight: 0.2, // Latency factor weight in combined calculations
PoolGrowthMultiplier: 2, // Pool growth multiplier
LatencyScalingFactor: 2.0, // Latency ratio scaling factor
OptimizerAggressiveness: 0.7, // Optimizer aggressiveness factor
// CGO Audio Processing Constants - Balanced for stability
CGOUsleepMicroseconds: 1000, // 1000 microseconds (1ms) for stable CGO usleep calls
CGOPCMBufferSize: 1920, // 1920 samples for PCM buffer (max 2ch*960)
CGONanosecondsPerSecond: 1000000000.0, // 1000000000.0 for nanosecond conversions
// Output Streaming Constants - Balanced for stability
OutputStreamingFrameIntervalMS: 20, // 20ms frame interval (50 FPS) for stability
// IPC Constants
IPCInitialBufferFrames: 500, // 500 frames for initial buffer
// Event Constants - Balanced for stability
EventTimeoutSeconds: 2, // 2 seconds for event timeout
EventTimeFormatString: "2006-01-02T15:04:05.000Z", // "2006-01-02T15:04:05.000Z" time format
EventSubscriptionDelayMS: 100, // 100ms subscription delay
// Goroutine Pool Configuration
MaxAudioProcessorWorkers: 16, // 16 workers for audio processing tasks
MaxAudioReaderWorkers: 8, // 8 workers for audio reading tasks
AudioProcessorQueueSize: 64, // 64 tasks queue size for processor pool
AudioReaderQueueSize: 32, // 32 tasks queue size for reader pool
WorkerMaxIdleTime: 60 * time.Second, // 60s maximum idle time before worker termination
// Input Processing Constants - Balanced for stability
InputProcessingTimeoutMS: 10, // 10ms processing timeout threshold
// Socket Names
InputSocketName: "audio_input.sock", // Socket name for audio input IPC
OutputSocketName: "audio_output.sock", // Socket name for audio output IPC
// Component Names
AudioInputComponentName: "audio-input", // Component name for input logging
AudioOutputComponentName: "audio-output", // Component name for output logging
AudioServerComponentName: "audio-server", // Component name for server logging
AudioRelayComponentName: "audio-relay", // Component name for relay logging
AudioEventsComponentName: "audio-events", // Component name for events logging
// Test Configuration
TestSocketTimeout: 100 * time.Millisecond, // 100ms timeout for test socket operations
TestBufferSize: 4096, // 4096 bytes buffer size for test operations
TestRetryDelay: 200 * time.Millisecond, // 200ms delay between test retry attempts
// Latency Histogram Configuration
LatencyHistogramMaxSamples: 1000, // 1000 samples for latency tracking
LatencyPercentile50: 50, // 50th percentile calculation factor
LatencyPercentile95: 95, // 95th percentile calculation factor
LatencyPercentile99: 99, // 99th percentile calculation factor
// Buffer Pool Configuration
BufferPoolDefaultSize: 64, // Default buffer pool size when MaxPoolSize is invalid
BufferPoolControlSize: 512, // Control buffer pool size
ZeroCopyPreallocSizeBytes: 1024 * 1024, // Zero-copy frame pool preallocation size in bytes (1MB)
ZeroCopyMinPreallocFrames: 1, // Minimum preallocated frames for zero-copy pool
BufferPoolHitRateBase: 100.0, // Base for hit rate percentage calculation
// Buffer Pool Efficiency Constants
HitRateCalculationBase: 100.0, // 100.0 base for hit rate percentage calculation
// Validation Constants
MaxLatency: 500 * time.Millisecond, // 500ms maximum allowed latency
MinMetricsUpdateInterval: 100 * time.Millisecond, // 100ms minimum metrics update interval
MaxMetricsUpdateInterval: 10 * time.Second, // 10s maximum metrics update interval
MinSampleRate: 8000, // 8kHz minimum sample rate
MaxSampleRate: 48000, // 48kHz maximum sample rate
MaxChannels: 8, // 8 maximum audio channels
// CGO Constants
CGOMaxBackoffMicroseconds: 500000, // 500ms maximum backoff in microseconds
CGOMaxAttempts: 5, // 5 maximum retry attempts
// Validation Frame Size Limits
MinFrameDuration: 10 * time.Millisecond, // 10ms minimum frame duration
MaxFrameDuration: 100 * time.Millisecond, // 100ms maximum frame duration
// Valid Sample Rates
ValidSampleRates: []int{8000, 12000, 16000, 22050, 24000, 44100, 48000}, // Supported sample rates
// Opus Bitrate Validation Constants
MinOpusBitrate: 6000, // 6000 bps minimum Opus bitrate
MaxOpusBitrate: 510000, // 510000 bps maximum Opus bitrate
// Validation Configuration
MaxValidationTime: 5 * time.Second, // 5s maximum validation timeout
MinFrameSize: 1, // 1 byte minimum frame size (allow small frames)
FrameSizeTolerance: 512, // 512 bytes frame size tolerance
// Latency Histogram Bucket Configuration
LatencyBucket10ms: 10 * time.Millisecond, // 10ms latency bucket
LatencyBucket25ms: 25 * time.Millisecond, // 25ms latency bucket
LatencyBucket50ms: 50 * time.Millisecond, // 50ms latency bucket
LatencyBucket100ms: 100 * time.Millisecond, // 100ms latency bucket
LatencyBucket250ms: 250 * time.Millisecond, // 250ms latency bucket
LatencyBucket500ms: 500 * time.Millisecond, // 500ms latency bucket
LatencyBucket1s: 1 * time.Second, // 1s latency bucket
LatencyBucket2s: 2 * time.Second, // 2s latency bucket
// Batch Audio Processing Configuration
MinBatchSizeForThreadPinning: 5, // Minimum batch size to pin thread
// Performance Configuration Flags - Production optimizations
}
}
// Global configuration instance
var Config = DefaultAudioConfig()
// UpdateConfig allows runtime configuration updates
func UpdateConfig(newConfig *AudioConfigConstants) {
// Validate the new configuration before applying it
if err := ValidateAudioConfigConstants(newConfig); err != nil {
// Log validation error and keep current configuration
logger := logging.GetDefaultLogger().With().Str("component", "AudioConfig").Logger()
logger.Error().Err(err).Msg("Configuration validation failed, keeping current configuration")
return
}
Config = newConfig
logger := logging.GetDefaultLogger().With().Str("component", "AudioConfig").Logger()
logger.Info().Msg("Audio configuration updated successfully")
}
// GetConfig returns the current configuration
func GetConfig() *AudioConfigConstants {
return Config
}
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