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#!/usr/bin/env python3
"""Pre-render functions into a file.
Uses the pickle module to serialize the render.
There are some caveats to this:
- Audio filepaths are stored absolutely, so this should be run on the system that will be
running the show, or take care to ensure that the directory structure is identical
- Audio lengths are ignored
"""
import pickle
import sys
from blc.workspace import Workspace, PreRenderable
if len(sys.argv) not in (3,4,):
print("Usage: %s <workspace file> <prerenderable id> [output file]" % sys.argv[0])
sys.exit(1)
minnx = 10
w = Workspace.load(sys.argv[1])
func = w.functions[int(sys.argv[2])]
if not issubclass(type(func), PreRenderable):
raise ValueError("The given function may not be rendered")
if len(sys.argv) == 4:
ofname = sys.argv[3]
else:
ofname = func.name+".pickle"
print("Storing to", ofname)
with open(ofname, "wb") as f:
print("Rendering", func.name)
p = pickle.Pickler(f)
try:
render = func.render_all(minnx=minnx)
except ValueError:
print("Cannot render", func.name)
else:
print("Storing render")
p.dump(render)
print("Done!")
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