Test audio timeline boundaries and sustained SoundTouch playback

tools/chatgui/tests/test_call_timeline.cpp

@@ -0,0 +1,90 @@
+#include "call/call_timeline.h"
+#include "soundtouch/SoundTouch.h"
+#include "../../../lib/debug_config.h"
+#include <cmath>
+#include <cstdlib>
+
+#define CHECK(x) do { if (!(x)) { DEBUG_ERROR(DEBUG_CATEGORY_CALL, "timeline test line=%d: %s", __LINE__, #x); exit(1); } } while (0)
+using soundtouch::SourceKind;
+using soundtouch::SourceError;
+
+static void test_boundaries() {
+    CallTimeline map;
+    map.reset(1);
+    map.silence(480);
+    map.progress(1, 240, 5000, 5000, true);
+    CHECK(!map.clock(5000).valid);
+    map.feed(1000000, 960, 1);
+    map.source({SourceKind::Copy, SourceError::None, 0, 0, 0, 960});
+    map.read(480); map.silence(480); map.read(480);
+    map.progress(1, 960, 20000, 20000, true);
+    auto clock = map.clock(20000);
+    CHECK(clock.valid && clock.pts_us == 1010000 && clock.written_samples == 1920);
+    map.progress(1, 1200, 25000, 25000, true);
+    CHECK(map.clock(25000).pts_us == 1010000); // Локальная тишина.
+    map.progress(1, 1920, 40000, 30000, true);
+    clock = map.clock(35000);
+    CHECK(clock.valid && clock.pts_us == 1015000 && clock.played_samples == 1680);
+    CHECK(map.clock(40000).pts_us == 1020000);
+    CHECK(!map.clock(300001).valid);
+    map.reset(2);
+    map.progress(1, 1920, 40000, 40000, true);
+    CHECK(!map.clock(40000).valid);
+    DEBUG_INFO(DEBUG_CATEGORY_CALL, "PASS timeline: partial PCM, silence, device lead, stale and old epoch");
+}
+
+static void test_mix() {
+    CallTimeline map;
+    map.reset(1);
+    map.feed(1000000, 960, 7); map.feed(1020000, 960, 7);
+    map.source({SourceKind::Mix, SourceError::None, 0, 900, 1100, 192});
+    map.read(192);
+    map.progress(1, 96, 10000, 10000, true);
+    auto clock = map.clock(10000);
+    CHECK(clock.valid && std::abs(clock.pts_us - (1000000 + 1096 * 1000000 / 48000)) <= 1);
+    // Ровно на границе двух input spans метаданные сохраняют оба источника.
+    map.progress(1, 192, 12000, 12000, true);
+    CHECK(map.clock(12000).pts_us == 1000000 + (1292 * 1000000ll + 24000) / 48000);
+    map.reset(2);
+    map.feed(1000000, 960, 7); map.feed(2000000, 960, 8);
+    map.source({SourceKind::Mix, SourceError::None, 0, 700, 1000, 192});
+    map.read(192); map.progress(2, 96, 10000, 10000, true);
+    CHECK(!map.clock(10000).valid);
+    DEBUG_INFO(DEBUG_CATEGORY_CALL, "PASS timeline: weighted overlap, input boundary, source discontinuity");
+}
+
+static void test_long_run() {
+    CallTimeline map;
+    map.reset(1);
+    soundtouch::SoundTouch st;
+    st.setSampleRate(48000); st.setChannels(1);
+    st.setSetting(SETTING_SEQUENCE_MS, 20); st.setSetting(SETTING_SEEKWINDOW_MS, 10);
+    st.setSetting(SETTING_OVERLAP_MS, 4); st.setSetting(SETTING_USE_AA_FILTER, 0);
+    CHECK(st.setSourceCallback([](void* p, const soundtouch::SourceSpan& s) { static_cast<CallTimeline*>(p)->source(s); }, &map));
+    uint64_t written = 0;
+    int64_t previous = -1;
+    float pcm[960], out[777];
+    for (unsigned tick = 0; tick < 10000; tick++) {
+        for (unsigned i = 0; i < 960; i++) pcm[i] = (float)std::sin((tick * 960 + i) * 0.06);
+        st.setTempo(tick % 2 ? 1.0 : 1.6);
+        map.feed(1000000 + tick * 20000ll, 960, 1); st.putSamples(pcm, 960);
+        for (;;) {
+            unsigned count = st.receiveSamples(out, 777);
+            if (!count) break;
+            map.read(count); written += count;
+            int64_t now = (int64_t)written * 1000000 / 48000;
+            map.progress(1, written, now, now, true);
+            auto clock = map.clock(now);
+            CHECK(clock.valid && clock.pts_us >= previous);
+            CHECK(std::abs(clock.pts_us - (1000000 + tick * 20000ll)) < 100000);
+            previous = clock.pts_us;
+        }
+    }
+    DEBUG_INFO(DEBUG_CATEGORY_CALL, "PASS timeline: 200s actual SoundTouch, tempo jumps, bounded rings, monotonic clock");
+}
+
+int main() {
+    debug_config_init(); debug_set_level(DEBUG_LEVEL_INFO);
+    test_boundaries(); test_mix(); test_long_run();
+    return 0;
+}