oxtimeline/oxgst/info.py

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