VLC and Python troubles! Help!
Posted: 17 Jul 2010 01:08
Hello, I had no idea where to post this since there are no other scripting related sections except the explicitly Lua one and the explicitly browser plugin one.
In case you didn't know, VLC has pretty decent python support, a python/c interface is generated off the headers using ctypes which allows us to call/receive data pretty directly from the actual libvlc itself! Cool!
What I have no clue how to do is to make something very simple work:
I'm working on a script that lets me start an instance of vlc streaming my audio in from a specific sound card, through udp, to another computer over the internet. Currently we do it by hand through the UI and it's getting unreliable with the less techy-employees, so I opted to set up a script that turns on the stream on both end for X amount of minutes or hours then turns it back off. Logistics aside, I have hit a wall in my understanding of how this all works.
The important line is :
Here's my script. It's really basic, it sets up playback instance and creates media with some options. Except that it seems to ignore the options and just use the defaults for dshow:// (ie: playing back the webcam input and audio, when it shouldnt be showing me any video and just playback & stream the audio).
I don't know if I'm doing this right, but here's what the generated interface has to say about the creation of new media:
So to summarize: the line of code that creates the media player doesn't seem to be eating my options, or I'm doing it all wrong. Please advise.
I'm aware that there's not a huge community surround python support here so maybe I'm missing something.
In case you didn't know, VLC has pretty decent python support, a python/c interface is generated off the headers using ctypes which allows us to call/receive data pretty directly from the actual libvlc itself! Cool!
What I have no clue how to do is to make something very simple work:
I'm working on a script that lets me start an instance of vlc streaming my audio in from a specific sound card, through udp, to another computer over the internet. Currently we do it by hand through the UI and it's getting unreliable with the less techy-employees, so I opted to set up a script that turns on the stream on both end for X amount of minutes or hours then turns it back off. Logistics aside, I have hit a wall in my understanding of how this all works.
Code: Select all
import vlc
import sys
if __name__ == "__main__":
if sys.argv[1] == 'in' or sys.argv[1] == 'out':
instance=vlc.Instance()
media = 0;
if sys.argv[1] == 'out':
media=instance.media_new('dshow://','show-vdev=none','dshow-adev=Cirrus Logic HD Audio','dshow-caching=200',
'sout=#duplicate{dst=udp{dst=192.168.2.99:1234},dst=display}',
'no-sout-rtp-sap', 'no-sout-standard-sap', 'sout-keep')
#todo: set up the receiving end, 'in'
player=instance.media_player_new()
player.set_media(media)
player.play()
print 'Streaming...'
while True:
passCode: Select all
media=instance.media_new('dshow://','show-vdev=none','dshow-adev=Cirrus Logic HD Audio','dshow-caching=200',
'sout=#duplicate{dst=udp{dst=192.168.2.99:1234},dst=display}',
'no-sout-rtp-sap', 'no-sout-standard-sap', 'sout-keep')I don't know if I'm doing this right, but here's what the generated interface has to say about the creation of new media:
Code: Select all
def media_new(self, mrl, *options):
"""Create an empty Media Player object
Options can be specified as supplementary string parameters, e.g.
m=i.media_new('foo.avi', 'sub-filter=marq{marquee=Hello}', 'vout-filter=invert')
"""
m=libvlc_media_new_location(self, mrl)
for o in options:
libvlc_media_add_option(m, o)
return mI'm aware that there's not a huge community surround python support here so maybe I'm missing something.