marijo/movmaker
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Refine caption styling

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hbrain 2026-05-24 22:09:48 +00:00
parent 24f226aa75
commit 630c7a0f74
1 changed files with 16 additions and 5 deletions
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21
movmaker.py
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@ -402,7 +402,7 @@ def build_video(
stamp_font = str(Path.home() / ".local/share/fonts/google/Inter%5Bopsz,wght%5D.ttf")
if title_lines:
title_font_size = max(60, height // 10)
subtitle_font_size = max(34, height // 20)
subtitle_font_size = max(40, height // 18)
main_title = data.title or title_lines[0]
subtitle = " | ".join(x for x in [data.date, data.place] if x)
title_alpha = "if(lt(t\\,5)\\,1\\,if(lt(t\\,6)\\,6-t\\,0))"
@ -438,7 +438,7 @@ def build_video(
filters.append(f"[{current}]copy[{title_label}]")
caption_label = title_label
caption_size = max(18, height // 42)
caption_size = subtitle_font_size if title_lines else max(40, height // 18)
for idx, caption in enumerate(captions):
if not caption:
continue
@ -456,13 +456,24 @@ def build_video(
end = transition_offsets[idx]
if end <= start:
continue
caption_fade = min(1.0, max(0.0, (end - start) / 2))
caption_alpha = (
f"if(lt(t\\,{start + caption_fade:.3f})\\,(t-{start:.3f})/{caption_fade:.3f}\\,"
f"if(lt(t\\,{end - caption_fade:.3f})\\,1\\,({end:.3f}-t)/{caption_fade:.3f}))"
) if caption_fade > 0 else "1"
next_label = f"caption{idx}"
filters.append(
f"[{caption_label}]drawtext=fontfile='{stamp_font}':text='{drawtext_escape(caption)}':x=(w-text_w)/2:y=h-text_h-62:"
f"[{caption_label}]drawtext=fontfile='{title_font}':text='{drawtext_escape(caption)}':x=(w-text_w)/2:y=h-text_h-62:"
f"fontsize={caption_size}:fontcolor=white:borderw=1:bordercolor=black:"
f"enable='between(t,{start:.3f},{end:.3f})'[{next_label}]"
f"alpha='{caption_alpha}':enable='between(t,{start:.3f},{end:.3f})'[{next_label}]"
)
caption_label = next_label
bold_label = f"caption{idx}b"
filters.append(
f"[{next_label}]drawtext=fontfile='{title_font}':text='{drawtext_escape(caption)}':x=(w-text_w)/2+1:y=h-text_h-62:"
f"fontsize={caption_size}:fontcolor=white:borderw=1:bordercolor=black:"
f"alpha='{caption_alpha}':enable='between(t,{start:.3f},{end:.3f})'[{bold_label}]"
)
caption_label = bold_label
stamp_size = max(14, height // 65)
stamp_lines = [x for x in [data.title, data.date, data.place] if x]