s12: thread project rate through v3 legacy lift; remove 44100 literals

kLegacyV3NominalRate removed. readZonesPayload, deserializePerformance, deserializeComponentState now take a projectRate for v3 frames→seconds. Rate fields default 0 (invalid). Four 44100 fallbacks replaced with assert+safe-return. 96k v3-lift test added.
2026-07-27 03:07:52 -04:00
parent a54af277e4
commit 082c9b82c2
6 changed files with 144 additions and 92 deletions
@@ -145,8 +145,10 @@ struct SampleLoop {
 struct SampleData {
    std::vector<AudioSample> frames;   // channel 0 PCM (mono, or L of a stereo sample)
    std::vector<AudioSample> framesR;  // channel 1 PCM (R); EMPTY for a mono sample
-    int sampleRate = 44100;            // frames per second (for reference; ratio is
-                                       // note-relative, so rate cancels for repitch)
+    int sampleRate = 0;                // frames per second (for reference; ratio is
+                                       // note-relative, so rate cancels for repitch).
+                                       // 0 is explicitly invalid — every consumer must
+                                       // receive a real rate before use.
    int rootNote = 60;                 // MIDI note recorded at (plays at unity here)
    SampleLoop loop;                   // sustain loop, if any
    // Initial read position (frame offset) a voice starts playback at — frame 0 by