pax/booru-viewer
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Code Issues Releases 18 Activity

Auto-detect video orientation — constrain correct dimension

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Compares video aspect ratio to container ratio. Wider videos
get height constrained, taller videos get width constrained.
Works for both preview and slideshow automatically.
This commit is contained in:
pax 2026-04-05 20:30:54 -05:00
parent 3f2bc67b46
commit 06ccdd475d
1 changed files with 9 additions and 7 deletions
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14
booru_viewer/gui/preview.py
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@ -95,7 +95,6 @@ class FullscreenPreview(QMainWindow):
self._video = VideoPlayer()
self._video._auto_size_video = True
self._video._size_by_width = False # constrain width not height in fullscreen
self._video.play_next.connect(lambda: self.navigate.emit(1))
self._stack.addWidget(self._video)
@ -565,7 +564,6 @@ class VideoPlayer(QWidget):
self._play_btn.setText("Play")
_auto_size_video = True
_size_by_width = True # True = constrain height (preview), False = constrain width (slideshow)
def _on_video_size(self, frame) -> None:
"""Resize video widget to match video aspect ratio on first frame."""
@ -577,12 +575,16 @@ class VideoPlayer(QWidget):
vh = frame.size().height()
if vw > 0 and vh > 0:
parent = self._video_widget.parentWidget()
if self._size_by_width:
available_w = parent.width() if parent else self._video_widget.width()
self._video_widget.setMaximumHeight(int(available_w * vh / vw))
else:
available_h = parent.height() if parent else self._video_widget.height()
self._video_widget.setMaximumWidth(int(available_h * vw / vh))
video_ratio = vw / vh
container_ratio = available_w / available_h if available_h > 0 else 1
if video_ratio > container_ratio:
# Video is wider — constrain height
self._video_widget.setMaximumHeight(int(available_w / video_ratio))
else:
# Video is taller — constrain width
self._video_widget.setMaximumWidth(int(available_h * video_ratio))
def _on_media_status(self, status) -> None:
pass