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    <p>Some time ago in a sample code in the active state website i saw someone played and recorded a MP3 file using VLC using the vlc.py module. You can take a look at it's sample code to see how to duplicate a stream. I copied th code here for you (I copied it from <a href="http://code.activestate.com/recipes/577802-using-vlcpy-to-record-an-mp3-and-save-a-cue-file/" rel="nofollow">http://code.activestate.com/recipes/577802-using-vlcpy-to-record-an-mp3-and-save-a-cue-file/</a>):</p> <pre><code>import vlc import time import os def new_filename(ext = '.mp3'): "find a free filename in 00000000..99999999" D = set(x[:8] for x in os.listdir('.') if (x.endswith(ext) or x.endswith('.cue')) and len(x) == 12) for i in xrange(10**8): s = "%08i" %i if s not in D: return s def initialize_cue_file(name,instream,audiofile): "create a cue file and write some data, then return it" cueout = '%s.cue' %name outf = file(cueout,'w') outf.write('PERFORMER "%s"\n' %instream) outf.write('TITLE "%s"\n' %name) outf.write('FILE "%s" WAVE\n' %audiofile) outf.flush() return outf def initialize_player(instream, audiofile): "initialize a vlc player which plays locally and saves to an mp3file" inst = vlc.Instance() p = inst.media_player_new() cmd1 = "sout=#duplicate{dst=file{dst=%s},dst=display}" %audiofile cmd2 ="no-sout-rtp-sap" cmd3 = "no-sout-standard-sap" cmd4 ="sout-keep" med=inst.media_new(instream,cmd1,cmd2,cmd3,cmd4) med.get_mrl() p.set_media(med) return p, med def write_track_meta_to_cuefile(outf,instream,idx,meta,millisecs): "write the next track info to the cue file" outf.write(' TRACK %02i AUDIO\n' %idx) outf.write(' TITLE "%s"\n' %meta) outf.write(' PERFORMER "%s"\n' %instream) m = millisecs // 60000 s = (millisecs - (m*60000)) // 1000 hs = (millisecs - (m*60000) - (s*1000)) //10 ts = '%02i:%02i:%02i' %(m,s,hs) outf.write(' INDEX 01 %s\n' %ts) outf.flush() def test(): #some online audio stream for which this currently works .... instream = 'http://streamer-mtc-aa05.somafm.com:80/stream/1018' #if the output filename ends with mp3 vlc knows which mux to use ext = '.mp3' name = new_filename(ext) audiofile = '%s%s' %(name,ext) outf = initialize_cue_file(name,instream,audiofile) p,med = initialize_player(instream, audiofile) p.play() np = None i = 0 while 1: time.sleep(.1) new = med.get_meta(12) if new != np: i +=1 t = p.get_time() print "millisecs: %i" %t write_track_meta_to_cuefile(outf,instream,i,new,t) np = new print "now playing: %s" %np if __name__=='__main__': test() </code></pre>
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    1. POSaving a stream while playing it using LibVLC
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