gryf/pygtktalog
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Separated code for geting information about movie, minor fixes

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gryf
2009-06-29 20:09:06 +00:00
parent b54aa1849b
commit 53c3a444e0
1 changed files with 24 additions and 17 deletions
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41
pygtktalog/video.py
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@@ -30,8 +30,8 @@ class Video(object):
attrs = {'ID_VIDEO_WIDTH': ['width', int],
'ID_VIDEO_HEIGHT': ['height', int],
'ID_LENGTH': ['length', lambda x: int(x.split(".")[0])],
# length is in seconds
'ID_LENGTH': ['length', lambda x: int(x.split(".")[0])],
'ID_DEMUXER': ['container', str],
'ID_VIDEO_FORMAT': ['video_format', str],
'ID_VIDEO_CODEC': ['video_codec', str],
@@ -44,14 +44,13 @@ class Video(object):
if key in attrs:
self.tags[attrs[key][0]] = attrs[key][1](output[key])
if 'length' in self.tags:
if self.tags['length'] > 0:
hours = self.tags['length'] / 3600
seconds = self.tags['length'] - hours * 3600
minutes = seconds / 60
seconds -= minutes * 60
length_str = "%02d:%02d:%02d" % (hours, minutes, seconds)
self.tags['duration'] = length_str
if 'length' in self.tags and self.tags['length'] > 0:
hours = self.tags['length'] / 3600
seconds = self.tags['length'] - hours * 3600
minutes = seconds / 60
seconds -= minutes * 60
length_str = "%02d:%02d:%02d" % (hours, minutes, seconds)
self.tags['duration'] = length_str
def capture(self, out_width=1024):
"""
@@ -67,22 +66,30 @@ class Video(object):
other place, otherwise it stays in filesystem.
"""
if not (self.tags.has_key('length') or self.tags.has_key('width')):
if not (self.tags.has_key('length') and self.tags.has_key('width')):
# no length or width
return None
if not (self.tags['length'] >0 and self.tags['width'] >0):
# zero length or wight
return None
# Calculate number of pictures. Base is equivalent 72 pictures for
# 1:30:00 movie length
scale = int(10 * math.log(self.tags['length'], math.e) - 11)
no_pictures = self.tags['length'] / scale
if no_pictures > 8:
# for really short movies
no_pictures = (no_pictures / 8 ) * 8 # only multiple of 8, please.
if not no_pictures:
# movie too short or length is 0
print "***", scale
if scale < 1:
return None
if no_pictures < 4:
no_pictures = self.tags['length'] / scale
print "no_pictures: ", no_pictures
if no_pictures > 8:
no_pictures = (no_pictures / 8 ) * 8 # only multiple of 8, please.
else:
# for really short movies
no_pictures = 4
tempdir = mkdtemp()