frame extraction with mplayer, possibly we have to use that

oxdbarchive/tools/extract_poster_still.py

@@ -5,6 +5,7 @@
 #
 import os
 import time
+import shutil
 
 import gobject
 gobject.threads_init()
@@ -99,6 +100,55 @@ class PosterStill:
     self.width = width
     return (self.width, self.height)
 
+class PosterStillMplayer:
+  length = 0
+  height = 0
+  def __init__(self, videofile, png='', nseconds=-1, height=128):
+    import warnings
+    warnings.filterwarnings("ignore", "tempnam")
+    
+    self.height = height
+    self.videofile = videofile
+    self.png_frame = png
+    
+    framedir = os.tempnam()
+    os.mkdir(framedir)
+    os.chdir(framedir)
+    mplayer_options = ''
+    mplayer_options += " '%s'" % self.videofile
+    mplayer_options += " -ss '%s' -frames 2" % self.msec2time(nseconds)
+    mplayer_options += " -vo png "
+    mplayer_options += " -ao null"
+    mplayer = "mplayer %s >/dev/null 2>&1" % mplayer_options
+    
+    #execute mplayer
+    os.system (mplayer.encode('utf-8'))
+    #get a last decoded frame
+    files = os.listdir(framedir)
+    if files:
+      #scale and save it
+      self.scaleImage(files[-1])
+    shutil.rmtree(framedir)
+  
+  def msec2time(self, msec):
+    import time
+    msec_string = "%s" % msec
+    ms = ",%s" % msec_string[-3:]
+    sec = float(msec) / 1000
+    return time.strftime("%H:%M:%S", time.gmtime(sec)) + ms
+  
+  def scaleImage(self, tmpImage):
+    img = Image.open(tmpImage)
+    output_d = self.scaleto(i.size[0], i.size[1])
+    img = img.resize(output_d, Image.ANTIALIAS)
+    img.save(self.png_frame)
+  
+  def scaleto(self, width, height):
+    width = int(self.height * (float(width) / height))
+    width = width - width%2
+    self.width = width
+    return (self.width, self.height)
+
 if __name__ == "__main__":
   import sys
   height = 128