Lower shared call jitter reserve floor to 20 ms

src/call/call_jitter.cpp

@@ -17,7 +17,6 @@
 static constexpr int kSampleRate = 48000;
 static constexpr int kFrameSamples = 960;
 static constexpr int kMaxEncoded = 512;
-static constexpr int kTargetMs = 60;
 static constexpr double kMaxTempo = 1.6;
 static constexpr int kTempoRampMs = 500;
 
@@ -39,7 +38,7 @@ struct call_jitter {
     call_jitter_diagnostics diagnostics{};
     int processing_ms = 0, tempo_x100 = 100; /* снимок аудиопотока под mtx */
     call_jitter_window depth_window, arrival_window;
-    call_jitter_range range = {0, 0, 60}; /* опубликованный снимок под mtx */
+    call_jitter_range range = {0, 0, CALL_JITTER_MIN_RESERVE_MS}; /* опубликованный снимок под mtx */
     call_jitter_decode_fn decode;
     void* arg;
     soundtouch::SoundTouch st;
@@ -47,7 +46,7 @@ struct call_jitter {
     float input[kFrameSamples];
     std::vector<float> output;
     bool primed = false, catching_up = false;
-    double tempo = 1.0, ema_ms = kTargetMs;
+    double tempo = 1.0, ema_ms = CALL_JITTER_MIN_RESERVE_MS;
 };
 
 extern "C" {
@@ -82,7 +81,7 @@ struct call_jitter* call_jitter_create(call_jitter_decode_fn decode, void* arg,
         j->~call_jitter(); u_free(j); return nullptr;
     }
     DEBUG_INFO(DEBUG_CATEGORY_CALL, "call_jitter: created capacity=%dms target=%dms max_reserve=%dms tempo=1.0..%.1f ramp=%dms",
-               CALL_JITTER_MAX_FRAMES * CALL_JITTER_FRAME_MS, kTargetMs, max_reserve_ms, kMaxTempo, kTempoRampMs);
+               CALL_JITTER_MAX_FRAMES * CALL_JITTER_FRAME_MS, CALL_JITTER_MIN_RESERVE_MS, max_reserve_ms, kMaxTempo, kTempoRampMs);
     return j;
 }