chore: initial commit

tests/test_video.py

@@ -0,0 +1,47 @@
+import json
+
+from src.models import Participant, SpaceMetadata
+from src.video import SpeakerTimeline, build_ffmpeg_command, render_frame
+
+
+def test_speaker_timeline_reads_active_speaker(tmp_path):
+    timeline_file = tmp_path / "timeline.json"
+    timeline_file.write_text(
+        json.dumps([
+            {"start": 0, "end": 2.5, "speaker": "alice"},
+            {"start": 2.5, "end": 4, "speaker": "@bob"},
+        ]),
+        encoding="utf-8",
+    )
+
+    timeline = SpeakerTimeline.from_file(str(timeline_file))
+
+    assert timeline.active_at(1) == "alice"
+    assert timeline.active_at(3) == "bob"
+    assert timeline.active_at(5) is None
+
+
+def test_build_ffmpeg_command_uses_audio_and_raw_video():
+    command = build_ffmpeg_command("audio.mp3", "out.mp4", 720, 720, 24)
+
+    assert command[:2] == ["ffmpeg", "-y"]
+    assert "audio.mp3" in command
+    assert "out.mp4" in command
+    assert "720x720" in command
+
+
+def test_render_frame_returns_rgb_image():
+    metadata = SpaceMetadata(
+        space_id="1ZkKzZWnVRRKv",
+        title="Example Space",
+        participants=[
+            Participant("1", "Alice", "alice", role="host"),
+            Participant("2", "Bob", "bob", role="speaker"),
+        ],
+    )
+    timeline = SpeakerTimeline.from_file_data([{"start": 0, "end": 10, "speaker": "bob"}])
+
+    frame = render_frame(metadata, {}, timeline, 1.0, 720, 720)
+
+    assert frame.mode == "RGB"
+    assert frame.size == (720, 720)