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skip video processing if necessary

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This commit is contained in:
Rodney Ewing 2013-08-27 16:32:21 -07:00
parent b08d2c3643
commit 4c617543c5
1 changed files with 37 additions and 0 deletions
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37
mediagoblin/media_types/video/processing.py
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@ -155,6 +155,29 @@ class CommonVideoProcessor(MediaProcessor):
self.entry.media_files['best_quality'] = self.entry \
.media_files['webm_video']
def _skip_processing(self, keyname, **kwargs):
file_metadata = self.entry.get_file_metadata(keyname)
if not file_metadata:
return False
skip = True
if keyname == 'webm_video':
if kwargs.get('medium_size') != file_metadata.get('medium_size'):
skip = False
elif kwargs.get('vp8_quality') != file_metadata.get('vp8_quality'):
skip = False
elif kwargs.get('vp8_threads') != file_metadata.get('vp8_threads'):
skip = False
elif kwargs.get('vorbis_quality') != \
file_metadata.get('vorbis_quality'):
skip = False
elif keyname == 'thumb':
if kwargs.get('thumb_size') != file_metadata.get('thumb_size'):
skip = False
return skip
def transcode(self, medium_size=None, vp8_quality=None, vp8_threads=None,
vorbis_quality=None):
@ -173,6 +196,14 @@ class CommonVideoProcessor(MediaProcessor):
if not vorbis_quality:
vorbis_quality = self.video_config['vorbis_quality']
file_metadata = {'medium_size': medium_size,
'vp8_threads': vp8_threads,
'vp8_quality': vp8_quality,
'vorbis_quality': vorbis_quality}
if self._skip_processing('webm_video', **file_metadata):
return
# Extract metadata and keep a record of it
metadata = self.transcoder.discover(self.process_filename)
store_metadata(self.entry, metadata)
@ -209,6 +240,8 @@ class CommonVideoProcessor(MediaProcessor):
self.name_builder.fill('{basename}.medium.webm'))
_log.debug('Saved medium')
self.entry.set_file_metadata('webm_video', **file_metadata)
self.did_transcode = True
# Save the width and height of the transcoded video
@ -225,6 +258,9 @@ class CommonVideoProcessor(MediaProcessor):
if not thumb_size:
thumb_size = (mgg.global_config['media:thumb']['max_width'],)
if self._skip_processing('thumb', thumb_size=thumb_size):
return
# We will only use the width so that the correct scale is kept
transcoders.VideoThumbnailerMarkII(
self.process_filename,
@ -236,6 +272,7 @@ class CommonVideoProcessor(MediaProcessor):
store_public(self.entry, 'thumb', tmp_thumb,
self.name_builder.fill('{basename}.thumbnail.jpg'))
self.entry.set_file_metadata('thumb', thumb_size=thumb_size)
class InitialProcessor(CommonVideoProcessor):
"""