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Merge pull request #207 from matrix-org/erikj/generate_local_thumbnails_on_thread
Generate local thumbnails on a thread
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commit
c472d6107e
@ -244,43 +244,52 @@ class BaseMediaResource(Resource):
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)
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return
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scales = set()
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crops = set()
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for r_width, r_height, r_method, r_type in requirements:
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if r_method == "scale":
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t_width, t_height = thumbnailer.aspect(r_width, r_height)
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scales.add((
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min(m_width, t_width), min(m_height, t_height), r_type,
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local_thumbnails = []
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def generate_thumbnails():
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scales = set()
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crops = set()
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for r_width, r_height, r_method, r_type in requirements:
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if r_method == "scale":
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t_width, t_height = thumbnailer.aspect(r_width, r_height)
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scales.add((
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min(m_width, t_width), min(m_height, t_height), r_type,
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))
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elif r_method == "crop":
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crops.add((r_width, r_height, r_type))
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for t_width, t_height, t_type in scales:
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t_method = "scale"
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t_path = self.filepaths.local_media_thumbnail(
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media_id, t_width, t_height, t_type, t_method
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)
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self._makedirs(t_path)
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t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
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local_thumbnails.append((
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media_id, t_width, t_height, t_type, t_method, t_len
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))
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elif r_method == "crop":
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crops.add((r_width, r_height, r_type))
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for t_width, t_height, t_type in scales:
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t_method = "scale"
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t_path = self.filepaths.local_media_thumbnail(
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media_id, t_width, t_height, t_type, t_method
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)
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self._makedirs(t_path)
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t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
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yield self.store.store_local_thumbnail(
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media_id, t_width, t_height, t_type, t_method, t_len
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)
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for t_width, t_height, t_type in crops:
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if (t_width, t_height, t_type) in scales:
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# If the aspect ratio of the cropped thumbnail matches a purely
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# scaled one then there is no point in calculating a separate
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# thumbnail.
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continue
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t_method = "crop"
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t_path = self.filepaths.local_media_thumbnail(
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media_id, t_width, t_height, t_type, t_method
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)
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self._makedirs(t_path)
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t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
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local_thumbnails.append((
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media_id, t_width, t_height, t_type, t_method, t_len
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))
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for t_width, t_height, t_type in crops:
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if (t_width, t_height, t_type) in scales:
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# If the aspect ratio of the cropped thumbnail matches a purely
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# scaled one then there is no point in calculating a separate
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# thumbnail.
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continue
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t_method = "crop"
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t_path = self.filepaths.local_media_thumbnail(
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media_id, t_width, t_height, t_type, t_method
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)
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self._makedirs(t_path)
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t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
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yield self.store.store_local_thumbnail(
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media_id, t_width, t_height, t_type, t_method, t_len
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)
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yield threads.deferToThread(generate_thumbnails)
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for l in local_thumbnails:
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yield self.store.store_local_thumbnail(*l)
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defer.returnValue({
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"width": m_width,
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