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  • Committer: stanislav-fomin at gmail
  • Date: 2013-05-11 09:14:25 UTC
  • Revision ID: stanislav-fomin@gmail.com-20130511091425-ia4059np72svhkyb
New WAV concatenation algorithm

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Lines of Context:
src/seminar_assembler.py
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        time_prefix = ''
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        if cur_ctime:
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            time_prefix = cur_ctime.strftime('%Y-%m-%d-%H-%M-%S-')
 
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        import wave
 
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        data = []
 
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        rawfile =  time_prefix + 'screen2log.raw'
 
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        outfile =  time_prefix + 'screen2log.wav'
 
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#        output = wave.open(rawfile, 'wb')
 
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        output = open(rawfile, 'wb')
 
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        normalnumframes = 0
 
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        params =  None
 
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        scmd = ''
 
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        for num, infile in enumerate(wav_filenames):
 
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            try:
 
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                w = wave.open(infile, 'rb')
 
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                if num == 0:
 
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                    channels = w.getnchannels()  
 
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                    bites = w.getsampwidth()*8
 
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                    rate = w.getframerate()
 
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                    toolsdir = self.toolsdir
 
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                    scmd = (
 
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                           r'%(toolsdir)s\sox\sox.exe -t raw '
 
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                           ' -c %(channels)d -r %(rate)d -b %(bites)d '
 
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                           ' -e signed-integer "%(rawfile)s" '
 
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                           ' -t w64 "%(outfile)s"  '
 
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                           ) % vars()
 
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                    print scmd
 
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                    pass
 
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#                    output.setparams(w.getparams())
 
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#                    normalnumframes = w.getnframes()               
 
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                numframes = w.getnframes()
 
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                #output.writeframesraw(w.readframes(numframes))
 
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                output.write(w.readframes(numframes))
 
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                print 'process ', infile 
 
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                w.close()
 
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            except:    
 
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                print 'skip ', infile 
 
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                pass
 
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        output.close()
 
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        print scmd
 
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        os.system(scmd)    
 
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    def build_screen2log_wav2(self, directory):
 
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        """
 
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        Write AVS-script for a bunch of small wav files
 
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        """
 
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        wav_filenames = []
 
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        re_s2l = re.compile("\d\d\d\d-\d\d-\d\d-\d\d-\d\d-\d\d\[(?P<slot>\d\d\d)]\.wav$")
 
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        for root, _dirnames, filenames in os.walk(directory):
 
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            for filename in filenames:
 
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                m = re_s2l.match(filename)
 
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                if m:
 
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                    wav_filenames.append(os.path.join(root, filename))
 
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        wav_filenames.sort()
 
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        if not wav_filenames:
 
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            return
 
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        wav_filenames = wav_filenames[:10000]
 
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        cur_ctime = ut.guess_creation_time_by_name(wav_filenames[0])
 
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        time_prefix = ''
 
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        if cur_ctime:
 
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            time_prefix = cur_ctime.strftime('%Y-%m-%d-%H-%M-%S-')
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        sourcewavavslines = ['function screen2log_audio(){ ']
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        for line, wav in enumerate(wav_filenames):