some basic initial work

renderlib.py

@@ -11,6 +11,8 @@ from svgtemplate import SVGTemplate
 from lxml import etree
 from urllib.request import urlopen
 from wand.image import Image
+from multiprocessing.pool import ThreadPool
+from time import sleep
 
 # Frames per second. Increasing this renders more frames, the avconf-statements would still need modifications
 fps = 25
@@ -142,8 +144,6 @@ def cachedRenderFrame(frame, frameNr, task, cache):
                         cache[frame]), "{0}/{1:04d}.png".format(framedir, frameNr))
 
         return
-    elif not skip_rendering:
-        cache[frame] = frameNr
 
     svgfile = '{0}/.frames/{1:04d}.svg'.format(task.workdir, frameNr)
 
@@ -155,6 +155,7 @@ def cachedRenderFrame(frame, frameNr, task, cache):
 
         outfile = '{0}/.frames/{1:04d}.png'.format(task.workdir, frameNr)
         renderFrame(svgfile, task, outfile)
+        cache[frame] = frameNr
 
     # increment frame-number
     frameNr += 1
@@ -175,6 +176,14 @@ def rendertask_video(task):
     for frameNr, frame in enumerate(task.sequence(task.parameters)):
         cachedRenderFrame(frame, frameNr, task, cache)
 
+    # with ThreadPool() as pool:
+    #     pool.starmap(
+    #         lambda frameNr, frame: cachedRenderFrame(frame, frameNr, task, cache),
+    #         enumerate(task.sequence(task.parameters)),
+    #     )
+    #     pool.close()
+    #     pool.join()
+
     if args.only_frame:
         task.outfile = '{0}.frame{1:04d}.png'.format(task.outfile, args.only_frame)