Report PCM mode, exact tempo and frame phase in call diagnostics

src/call/call_audio.c

@@ -628,9 +628,12 @@ int call_audio_get_stats(uint64_t call_id, int* buffer_ms, int* tempo_x100,
                            !!(events & 1), !!(events & 2), !!(events & 4), !!(events & 16), !!(events & 8));
     if (ok) DEBUG_DEBUG(DEBUG_CATEGORY_CALL,
         "call_jitter: call=%llu depth=%dms reserve=%dms encoded=%dms processing=%dms spread=%lldms pcm=%d "
-        "tempo=%d waiting=%d catching_up=%d resumed=%d underruns=%u",
+        "tempo=%d waiting=%d catching_up=%d resumed=%d underruns=%u "
+        "dsp=%d tempo_ppm=%d phase_samples=%u cuts=%llu stretch_in_out=%llu/%llu",
         (unsigned long long)call_id, diagnostics.depth_ms, diagnostics.reserve_ms, diagnostics.encoded_ms,
         diagnostics.processing_ms, (long long)diagnostics.arrival_spread_ms, diagnostics.pcm_samples,
-        diagnostics.tempo_x100, diagnostics.waiting, diagnostics.catching_up, diagnostics.resumed, diagnostics.underruns);
+        diagnostics.tempo_x100, diagnostics.waiting, diagnostics.catching_up, diagnostics.resumed, diagnostics.underruns,
+        diagnostics.delay_mode, diagnostics.tempo_ppm, diagnostics.phase_samples, (unsigned long long)diagnostics.cut_samples,
+        (unsigned long long)diagnostics.stretch_entries, (unsigned long long)diagnostics.stretch_exits);
     return ok ? 0 : -1;
 }

src/call/call_jitter.cpp

@@ -177,6 +177,11 @@ int call_jitter_pull(struct call_jitter* j, int16_t* out, int max_samples) {
         j->diagnostics.catching_up = state.tempo > 1.05;
         j->diagnostics.waiting = n < max_samples;
         j->diagnostics.pcm_samples = n;
+        j->diagnostics.delay_mode = (int)state.mode;
+        j->diagnostics.tempo_ppm = (int)std::lround(state.tempo * 1000000);
+        j->diagnostics.phase_samples = state.phase;
+        j->diagnostics.cut_samples = state.cuts;
+        j->diagnostics.stretch_entries = state.entered; j->diagnostics.stretch_exits = state.exited;
     }
     return n;
 }