Fixing loudness issue

gnommo/transformer.py

@@ -139,10 +139,14 @@ def _is_known_marker(
         "narration:",
         "vft:",
         "vfb:",
+        "vf2t:",
+        "vf2b:",
         "vst:",
         "vsb:",
         "vftp:",
         "vfbp:",
+        "vf2tp:",
+        "vf2bp:",
         "vstp:",
         "vsbp:",
     )
@@ -627,8 +631,8 @@ def build_render_plan(
     # Before extracting video events, resolve any referenced videos that are missing
     # from the project's videos.json by looking them up in shared_assets/videos.json.
     _VIDEO_MARKER_PREFIXES = (
-        "video:", "narration:", "vft:", "vfb:", "vst:", "vsb:",
-        "vftp:", "vfbp:", "vstp:", "vsbp:",
+        "video:", "narration:", "vft:", "vfb:", "vf2t:", "vf2b:", "vst:", "vsb:",
+        "vftp:", "vfbp:", "vf2tp:", "vf2bp:", "vstp:", "vsbp:",
     )
     missing_video_ids = [
         timing.marker_id[len(prefix):]
@@ -897,8 +901,8 @@ def _extract_slide_events(
 
     events: list[SlideEvent] = []
     for i, (marker_time, marker_id) in enumerate(resolved):
-        # Each slide starts at its own marker time
-        start_time = marker_time
+        # First slide always starts at 0 — it's the opening state of the presentation.
+        start_time = 0.0 if i == 0 else marker_time
 
         # End time is when the NEXT slide's marker appears, or end of video
         if i + 1 < len(resolved):
@@ -957,10 +961,14 @@ def _extract_video_events(
     _SHORTHAND: dict[str, tuple[str, str]] = {
         "vft:": ("fullscreen", "above"),
         "vfb:": ("fullscreen", "below"),
+        "vf2t:": ("fullscreen2", "above"),
+        "vf2b:": ("fullscreen2", "below"),
         "vst:": ("square", "above"),
         "vsb:": ("square", "below"),
         "vftp:": ("fullscreen", "above", "pause_narration"),
         "vfbp:": ("fullscreen", "below", "pause_narration"),
+        "vf2tp:": ("fullscreen2", "above", "pause_narration"),
+        "vf2bp:": ("fullscreen2", "below", "pause_narration"),
         "vstp:": ("square", "above", "pause_narration"),
         "vsbp:": ("square", "below", "pause_narration"),
     }