77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# GPL 2008
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import gobject
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gobject.threads_init()
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import os
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import pygst
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pygst.require("0.10")
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import gst
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from gst.extend import discoverer
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codec_list = {
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'MPEG-1 layer 3': 'MPEG-1 Audio layer 3',
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'MPEG-1 layer 3 audio': 'MPEG-1 Audio layer 3',
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'MPEG 1 Audio, Layer 2': 'MPEG-1 Audio layer 2',
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'VP6 Flash video': 'VP6',
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'AC-3 audio': 'AC-3',
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'Uncompressed 16-bit PCM audio': 'Uncompressed 16-bit PCM',
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'Generic DV': 'DV Video',
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}
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class Info(dict):
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def __init__(self, path):
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self._stream_id = 0
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self['video'] = []
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self['audio'] = []
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self['size'] = os.stat(path).st_size
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mainloop = gobject.MainLoop()
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def discovered(d, is_media):
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if is_media:
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if d.is_video:
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c = {}
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c['width'] = d.videowidth
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c['height'] = d.videoheight
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self['duration'] = float(d.videolength)/gst.SECOND
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c["framerate"] = "%d:%d" % (d.videorate.num, d.videorate.denom)
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s = d.videocaps[0]
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par = gst.Fraction(1, 1)
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if 'pixel-aspect-ratio' in s.keys():
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par = s['pixel-aspect-ratio']
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c["pixel_aspect_ratio"] = "%s:%s" %(par.num, par.denom)
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dar = gst.Fraction(d.videowidth * par.num, d.videoheight * par.denom)
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if 'display-aspect-ratio' in s.keys():
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dar = s['display-aspect-ratio']
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c["display_aspect_ratio"] = "%s:%s" %(dar.num, dar.denom)
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if 'video-codec' in d.tags:
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c['codec'] = codec_list.get(d.tags['video-codec'], d.tags['video-codec'])
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c['id'] = self._stream_id
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self._stream_id += 1
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self['video'].append(c)
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if d.is_audio:
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c = {}
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#self['audio caps'] = d.audiocaps
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#self['audio format'] = d.audiofloat and 'floating-point' or 'integer'
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#self['sample width (bits)'] = d.audiowidth
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#self['sample depth (bits)'] = d.audiodepth
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c['samplerate'] = d.audiorate
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if 'duration' not in self:
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self['duration'] = float(d.audiolength)/gst.SECOND
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c['channels'] = d.audiochannels
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if 'audio-codec' in d.tags:
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c['codec'] = codec_list.get(d.tags['audio-codec'], d.tags['audio-codec'])
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c['id'] = self._stream_id
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self._stream_id += 1
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self['audio'].append(c)
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mainloop.quit()
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d = discoverer.Discoverer(path)
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d.connect('discovered', discovered)
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d.discover()
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mainloop.run()
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