05_16_06_memory_variants

Memory-Optimized Audio Processing Variants

Status: ⏸️ NOT STARTED Priority: MEDIUM Dependencies: TAREA 0 (Variant Framework) Estimated Effort: 2 weeks

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🎯 Purpose

Memory variants optimize for different memory access patterns and constraints: - In-place processing: No extra memory allocation - Zero-copy: Avoid buffer copies - Small memory footprint: For embedded/mobile - Memory pooling: Reuse allocations

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📋 Planned Features

1. In-Place Processing

class InPlaceGainVariant : public IVariant {
public:
    bool process(float* buffer, size_t numSamples);
    // Same buffer for input/output (saves 50% memory)
};

2. Zero-Copy Variants

class ZeroCopyVariant : public IVariant {
public:
    bool process(const float* input, float* output, size_t numSamples) override;
    // No internal buffer copies
};

3. Memory Pool Management

class PooledVariant : public IVariant {
public:
    bool process(const float* input, float* output, size_t numSamples) override;

private:
    MemoryPool& pool_;  // Reuse allocations
};

4. Circular Buffer Variants

class CircularBufferVariant : public IVariant {
public:
    bool process(const float* input, float* output, size_t numSamples) override;
    // Efficient for delays/reverbs

private:
    CircularBuffer<float> buffer_;
};

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📊 Performance Targets

Variant	Memory Usage	Allocation Overhead	Speed
In-Place	0.5x	0	1.05x (cache benefit)
Zero-Copy	1x	0	1.0x
Pooled	1x (reused)	0.95x	1.0x
Circular	1x + delay	0 (preallocated)	1.0x

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Status: ⏸️ Useful for embedded/mobile Priority: MEDIUM