Source Code for Module qb.backend.afterEffectsLogParser

 1  #====================================== 
 2  #  $Revision: #3 $ 
 3  #  $Change: 15708 $ 
 4  #====================================== 
 5  import sys 
 6   
 7  import qb.backend.logParser 
 8  import qb.backend.utils as backendUtils 
 9   
10 -class AERenderLogParser(qb.backend.logParser.LogParser): 
11      ''' 
12      This LogParser class is for AfterEffects sequence renders. 
13      ''' 
14 -    def calcProgress(self, progressMatchStr, qbTokens): 
15          ''' 
16          Calculate the internal progress of an AfterEffects sequence render. 
17   
18          AfterEffects progress output does not include the frame number, but rather the 1-based index 
19          of the frame in the chunk. 
20   
21          eg: if rendering a 5 frame chunk from frames 6-10, the output will contain: 
22               
23              PROGRESS:  0:00:09:05 (1): 0 Seconds 
24              PROGRESS:  0:00:09:05 (2): 0 Seconds 
25              PROGRESS:  0:00:09:05 (3): 0 Seconds 
26              PROGRESS:  0:00:09:05 (4): 0 Seconds 
27              PROGRESS:  0:00:09:05 (5): 0 Seconds 
28   
29          So this method finds the AE frame number (1-5 in this case), then determines how many frames 
30          are in the chunk, and then calculates the completion value for the chunk.  
31   
32          @param progressMatchStr: the value used to derive the progress within the chunk.  It is 
33          simply the progress percentage integer matched in the application output. 
34   
35          @type progressMatchStr: C{str} 
36   
37          @param qbTokens: a dictionary containing all the QB_FRAME* values to aid in calculation the 
38          in-chunk progress. 
39   
40          @type qbTokens: C{dict} 
41   
42          @return: The amount of work complete for the item, expressed as a float between 0 and 1.0, 1.0 being completely done. 
43          @rtype: C{float} 
44          ''' 
45          progress = 0.0 
46          chunkLen = len(qb.genframes(qbTokens['QB_FRAME_RANGE'])) 
47   
48          try: 
49              progress = '%0.2f' % (float(progressMatchStr) / chunkLen,) 
50          except ValueError: 
51              backendUtils.flushPrint('WARNING: the logParser %s did not extract a valid frame number: "%s"' % (self.__class__.__name__, progressMatchStr), fhList=sys.stderr) 
52              backendUtils.flushPrint(backendUtils.formatExc(), fhList=[sys.stderr]) 
53   
54          return progress 
55