marijo/movmaker
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fix: respect intro logo alpha by forcing RGBA in overlay

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hbrain 2026-05-28 18:59:17 +00:00
parent 598dd1592b
commit 801f17ef10
1 changed files with 5 additions and 4 deletions
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9
movmaker.py
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@ -36,13 +36,13 @@ FFMPEG = BASE_DIR / "ffmpeg" / "ffmpeg"
FFPROBE = BASE_DIR / "ffmpeg" / "ffprobe" FFPROBE = BASE_DIR / "ffmpeg" / "ffprobe"
INTRO_LOGO_NAME = "intro.png" INTRO_LOGO_NAME = "intro.png"
DEFAULT_INTRO_LOGO = BASE_DIR / "img" / "moto_travel.png" DEFAULT_INTRO_LOGO = BASE_DIR / "img" / "moto_travel.png"
INTRO_LOGO_TARGET_HEIGHT_RATIO = 0.75 INTRO_LOGO_TARGET_HEIGHT_RATIO = 0.99
INTRO_LOGO_EXTRA_HOLD = 6.0 INTRO_LOGO_EXTRA_HOLD = 6.0
INTRO_LOGO_FADE_OFFSET = 3.0 INTRO_LOGO_FADE_OFFSET = 3.0
INTRO_LOGO_DEFAULT_ALPHA = 0.75 INTRO_LOGO_DEFAULT_ALPHA = 0.50
INTRO_TITLE_START_OFFSET = 0.0 INTRO_TITLE_START_OFFSET = 0.0
INTRO_TITLE_FADE_LENGTH = 1.0 INTRO_TITLE_FADE_LENGTH = 1.0
INTRO_TITLE_VISIBLE = 6.0 INTRO_TITLE_VISIBLE = 9.0
INTRO_TITLE_FADE_IN_ENABLED = False INTRO_TITLE_FADE_IN_ENABLED = False
DEFAULT_IMAGE_DURATION = 6.0 DEFAULT_IMAGE_DURATION = 6.0
DEFAULT_CROSSFADE_DURATION = 3.0 DEFAULT_CROSSFADE_DURATION = 3.0
@ -721,7 +721,8 @@ def render_intro_logo_frame(logo: Path, out: Path, width: int, height: int, alph
filters = ( filters = (
f"[1:v]scale=w={width}:h={target_logo_height}:force_original_aspect_ratio=decrease," f"[1:v]scale=w={width}:h={target_logo_height}:force_original_aspect_ratio=decrease,"
f"format=rgba,colorchannelmixer=aa={alpha:.3f}[logo];" f"format=rgba,colorchannelmixer=aa={alpha:.3f}[logo];"
f"[0:v][logo]overlay=x=(W-w)/2:y=(H-h)/2:format=auto,format=rgba[vout]" f"[0:v]format=rgba[bg];"
f"[bg][logo]overlay=x=(W-w)/2:y=(H-h)/2:format=rgba[vout]"
) )
cmd = [ cmd = [
tool_path(FFMPEG, "ffmpeg"), "-y", tool_path(FFMPEG, "ffmpeg"), "-y",