lirc-0.8.4a/tools/pronto2lirc.py

   1 #
   2 # A tool for converting Pronto format hex codes to lircd.conf format
   3 #
   4 # Copyright by Olavi Akerman <olavi.akerman@gmail.com>
   5 #
   6 # pronto2lirc is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 #  (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 #
  20
  21 class CodeSequence:           # Handles codesequences parsing and conversion
  22
  23     def ProcessPreamble(self,sPreamble):
  24         if sPreamble[0]<>"0000":
  25             raise "Formats other than starting with 0000 are not supported!"
  26
  27         self.dIRFrequency=1000000/(long(sPreamble[1],16) * 0.241246) # Frequency of the IR carrier in Khz
  28
  29         self.lOnceSequenceLength=long(sPreamble[2],16)          # No of pulses that is sent once when button is pressed
  30         self.lRepeatableSequenceLength=long(sPreamble[3],16)    # No of pulses that are repeatable while button pressed
  31
  32     def CreatePulses(self,sItems):
  33         self.dPulseWidths=[]             # Table of Pulse widths. Length is repsented in microseconds
  34
  35         for i in sItems:
  36             self.dPulseWidths.append(1000000*long(i,16)/self.dIRFrequency) # Convert pulse widths to uS
  37
  38         if len(self.dPulseWidths)<>2*(self.lOnceSequenceLength+self.lRepeatableSequenceLength):
  39             raise "Number of actual codes does not match the header information!"
  40
  41     def AnalyzeCode(self,sCodeName,sHexCodes):
  42
  43         sHexTable=sHexCodes.split()
  44         self.sCodeName=sCodeName.rstrip()  # Name of the Code associated with code sequence
  45
  46         self.ProcessPreamble(sHexTable[:4]) # First four sequences make up Preamble
  47         self.CreatePulses(sHexTable[4:])    # The rest are OnceSequence + RepeatableSequence
  48         return self.dPulseWidths[-1]        # Final gap=last off signal length
  49
  50     def WriteCodeSection(self,fOut):
  51         fOut.write('\n\t\t\tname '+self.sCodeName+'\n')
  52         for i in range(len(self.dPulseWidths)-1):   # Do not write the last signal as lircd.conf
  53                                                     # does not contain last off signal length
  54             if (i%6) ==0:
  55                 fOut.write('\t\t\t\t')
  56
  57             fOut.write('%d ' % round(self.dPulseWidths[i]))
  58
  59             if (i+1)%6 ==0:      # Group codes as six per line
  60                 fOut.write('\n')
  61
  62         fOut.write('\n')          # Final EOL
  63
  64 class HexParser:
  65     def __init__(self,sFileName):
  66         f=open(sFileName,'r')
  67         self.sRemoteName=sFileName.split('.')[:1][0]  # Name of the remote
  68         self.sCodes=[]    # Codes contained in file
  69         self.lGap=0         # Final Gap
  70
  71         while True:
  72             sLine=f.readline()
  73
  74             if sLine=='' or sLine.strip()=='':   # EOF?
  75                 break
  76
  77             [sCodeName,sHexCodes]=sLine.split(':')
  78             seq=CodeSequence()
  79             finalgap=seq.AnalyzeCode(sCodeName,sHexCodes)
  80             if finalgap>self.lGap:
  81                 self.lGap=finalgap
  82
  83             self.sCodes.append(seq)
  84
  85         f.close()
  86
  87     def WriteLIRCConf(self,sOutFileName):
  88         f=open(sOutFileName,'w')
  89
  90         f.write('begin remote\n')
  91         f.write('\tname\t'+self.sRemoteName+'\n')
  92         f.write('\tflags\tRAW_CODES\n')
  93         f.write('\teps\t30\n')
  94         f.write('\taeps\t100\n')
  95         f.write('\tgap\t%d\n' % self.lGap )
  96         f.write('\t\tbegin raw_codes\n')
  97
  98         for i in self.sCodes:
  99             i.WriteCodeSection(f)
 100
 101         f.write('\t\tend raw_codes\n')
 102         f.write('end remote\n')
 103         f.close()
 104
 105 # Main
 106
 107 import sys
 108
 109 if len(sys.argv)<>2:
 110         print "Pronto codes converter to lircd.conf format (version 1.00)"
 111         print
 112         print "Usage:   pronto2lirc.py inputfile.hex "
 113         print
 114         print "Input file must be in format where each line contains all codes"
 115         print "         associated with a button like:"
 116         print "         Button1:0000 00ac 000b 00de ..."
 117         print
 118         print "Result:  lircd.conf file is written to the current directory"
 119         print "         containing all the Pronto codes extracted from"
 120         print "         the input file"
 121         print
 122 else:
 123         p=HexParser(sys.argv[1])
 124         p.WriteLIRCConf('lircd.conf')