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| author | skal <pascal.massimino@gmail.com> | 2026-02-15 23:56:43 +0100 |
|---|---|---|
| committer | skal <pascal.massimino@gmail.com> | 2026-02-15 23:56:43 +0100 |
| commit | 5c7feffd3749ce4b355d0db6334cf39ca94d8d82 (patch) | |
| tree | 7105aea12d0367208a37777cf53b348f35a66dad /src/audio/ring_buffer.h | |
| parent | e21127a3fc4797805d49ae2d95fc7ed6f94ac456 (diff) | |
perf(audio): smooth playback time and RMS-based peak at 60Hz
Interpolates audio playback time between callbacks using CLOCK_MONOTONIC
for smooth 60Hz updates instead of coarse 8-10Hz steps.
Replaces artificial peak decay with true RMS calculation over 50ms
window. Ring buffer computes RMS directly on internal buffer without
copies for efficiency.
All backends updated with get_callback_state() interface for time
interpolation. Tests passing (34/34).
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Diffstat (limited to 'src/audio/ring_buffer.h')
| -rw-r--r-- | src/audio/ring_buffer.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/audio/ring_buffer.h b/src/audio/ring_buffer.h index 524cb29..1a21542 100644 --- a/src/audio/ring_buffer.h +++ b/src/audio/ring_buffer.h @@ -60,6 +60,11 @@ class AudioRingBuffer { // FATAL ERROR if num_samples exceeds region from get_write_region() void commit_write(int num_samples); + // Get RMS of recent samples without consuming + // window_samples: Number of samples to include in RMS calculation + // Returns: RMS value (root mean square) over the window + float get_past_rms(int window_samples) const; + private: float buffer_[RING_BUFFER_CAPACITY_SAMPLES]; int capacity_; // Total capacity in samples |