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Generate local thumbnails on a thread

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This commit is contained in:
Erik Johnston 2015-07-23 14:52:29 +01:00
parent 6886bba988
commit 2b4f47db9c
1 changed files with 43 additions and 34 deletions
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77
synapse/rest/media/v1/base_resource.py
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@ -244,43 +244,52 @@ class BaseMediaResource(Resource):
) )
return return
scales = set() local_thumbnails = []
crops = set()
for r_width, r_height, r_method, r_type in requirements: def generate_thumbnails():
if r_method == "scale": scales = set()
t_width, t_height = thumbnailer.aspect(r_width, r_height) crops = set()
scales.add(( for r_width, r_height, r_method, r_type in requirements:
min(m_width, t_width), min(m_height, t_height), r_type, if r_method == "scale":
t_width, t_height = thumbnailer.aspect(r_width, r_height)
scales.add((
min(m_width, t_width), min(m_height, t_height), r_type,
))
elif r_method == "crop":
crops.add((r_width, r_height, r_type))
for t_width, t_height, t_type in scales:
t_method = "scale"
t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
self._makedirs(t_path)
t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
local_thumbnails.append((
media_id, t_width, t_height, t_type, t_method, t_len
)) ))
elif r_method == "crop":
crops.add((r_width, r_height, r_type))
for t_width, t_height, t_type in scales: for t_width, t_height, t_type in crops:
t_method = "scale" if (t_width, t_height, t_type) in scales:
t_path = self.filepaths.local_media_thumbnail( # If the aspect ratio of the cropped thumbnail matches a purely
media_id, t_width, t_height, t_type, t_method # scaled one then there is no point in calculating a separate
) # thumbnail.
self._makedirs(t_path) continue
t_len = thumbnailer.scale(t_path, t_width, t_height, t_type) t_method = "crop"
yield self.store.store_local_thumbnail( t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method, t_len media_id, t_width, t_height, t_type, t_method
) )
self._makedirs(t_path)
t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
local_thumbnails.append((
media_id, t_width, t_height, t_type, t_method, t_len
))
for t_width, t_height, t_type in crops: yield threads.deferToThread(generate_thumbnails)
if (t_width, t_height, t_type) in scales:
# If the aspect ratio of the cropped thumbnail matches a purely for l in local_thumbnails:
# scaled one then there is no point in calculating a separate yield self.store.store_local_thumbnail(*l)
# thumbnail.
continue
t_method = "crop"
t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
self._makedirs(t_path)
t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
yield self.store.store_local_thumbnail(
media_id, t_width, t_height, t_type, t_method, t_len
)
defer.returnValue({ defer.returnValue({
"width": m_width, "width": m_width,