Implement audio sync foundations

2026-07-13 10:19:29 +08:00
parent 4d52267c4a
commit 08b1c6d562
21 changed files with 1094 additions and 18 deletions
@@ -0,0 +1,76 @@
+#include <gtest/gtest.h>
+
+#include "audio/audiosynchronizer.h"
+
+TEST(AudioSynchronizer, PlacesCandidateBySourceStartTime)
+{
+	olive::AudioSynchronizer::SourceClip reference;
+	reference.source_start_time = olive::core::rational(100);
+	reference.has_source_start_time = true;
+
+	olive::AudioSynchronizer::SourceClip candidate;
+	candidate.source_start_time = olive::core::rational(112);
+	candidate.has_source_start_time = true;
+
+	const olive::AudioSynchronizer::Placement placement =
+		olive::AudioSynchronizer::PlaceBySourceTime(
+			reference, candidate, olive::core::rational(10));
+
+	ASSERT_TRUE(placement.valid);
+	EXPECT_EQ(placement.timeline_in, olive::core::rational(22));
+}
+
+TEST(AudioSynchronizer, AccountsForMediaInWhenPlacingBySourceTime)
+{
+	olive::AudioSynchronizer::SourceClip reference;
+	reference.source_start_time = olive::core::rational(100);
+	reference.media_in = olive::core::rational(2);
+	reference.has_source_start_time = true;
+
+	olive::AudioSynchronizer::SourceClip candidate;
+	candidate.source_start_time = olive::core::rational(100);
+	candidate.media_in = olive::core::rational(5);
+	candidate.has_source_start_time = true;
+
+	const olive::AudioSynchronizer::Placement placement =
+		olive::AudioSynchronizer::PlaceBySourceTime(
+			reference, candidate, olive::core::rational(20));
+
+	ASSERT_TRUE(placement.valid);
+	EXPECT_EQ(placement.timeline_in, olive::core::rational(23));
+}
+
+TEST(AudioSynchronizer, RejectsMissingSourceStartTime)
+{
+	olive::AudioSynchronizer::SourceClip reference;
+	reference.source_start_time = olive::core::rational(100);
+	reference.has_source_start_time = true;
+
+	olive::AudioSynchronizer::SourceClip candidate;
+
+	const olive::AudioSynchronizer::Placement placement =
+		olive::AudioSynchronizer::PlaceBySourceTime(
+			reference, candidate, olive::core::rational(10));
+
+	EXPECT_FALSE(placement.valid);
+}
+
+TEST(AudioSynchronizer, PlacesCandidateByWaveformOffset)
+{
+	const olive::AudioSynchronizer::Placement placement =
+		olive::AudioSynchronizer::PlaceByWaveformOffset(
+			olive::core::rational(10), 24000, 48000);
+
+	ASSERT_TRUE(placement.valid);
+	EXPECT_EQ(placement.timeline_in, olive::core::rational(21, 2));
+}
+
+TEST(AudioSynchronizer, SupportsCandidateLeadByWaveformOffset)
+{
+	const olive::AudioSynchronizer::Placement placement =
+		olive::AudioSynchronizer::PlaceByWaveformOffset(
+			olive::core::rational(10), -48000, 48000);
+
+	ASSERT_TRUE(placement.valid);
+	EXPECT_EQ(placement.timeline_in, olive::core::rational(9));
+}