3b1b-manim/stage_scenes.py

96 lines
3.3 KiB
Python

#!/usr/bin/env python
import inspect
import os
import sys
import importlib
from manimlib.constants import PRODUCTION_QUALITY_CAMERA_CONFIG
from manimlib.constants import PRODUCTION_QUALITY_FRAME_DURATION
from manimlib.config import get_module
from manimlib.extract_scene import is_child_scene
from manimlib.utils.output_directory_getters import get_movie_output_directory
from manimlib.utils.output_directory_getters import get_partial_movie_output_directory
from manimlib.utils.output_directory_getters import get_sorted_integer_files
def get_sorted_scene_classes(module_name):
module = get_module(module_name)
importlib.import_module(module.__name__)
line_to_scene = {}
name_scene_list = inspect.getmembers(
module,
lambda obj: is_child_scene(obj, module)
)
for name, scene_class in name_scene_list:
if inspect.getmodule(scene_class).__name__ != module.__name__:
continue
lines, line_no = inspect.getsourcelines(scene_class)
line_to_scene[line_no] = scene_class
return [
line_to_scene[index]
for index in sorted(line_to_scene.keys())
]
def stage_animations(module_name):
scene_classes = get_sorted_scene_classes(module_name)
if len(scene_classes) == 0:
print("There are no rendered animations from this module")
return
output_directory_kwargs = {
"camera_config": PRODUCTION_QUALITY_CAMERA_CONFIG,
"frame_duration": PRODUCTION_QUALITY_FRAME_DURATION,
}
animation_dir = get_movie_output_directory(
scene_classes[0], **output_directory_kwargs
)
files = os.listdir(animation_dir)
sorted_files = []
for scene_class in scene_classes:
scene_name = scene_class.__name__
# Partial movie file directory
pmf_dir = get_partial_movie_output_directory(
scene_class, **output_directory_kwargs
)
if os.path.exists(pmf_dir):
for extension in [".mov", ".mp4"]:
int_files = get_sorted_integer_files(
pmf_dir, extension=extension
)
for file in int_files:
sorted_files.append(os.path.join(pmf_dir, file))
else:
for clip in [f for f in files if f.startswith(scene_name + ".")]:
sorted_files.append(os.path.join(animation_dir, clip))
animation_subdir = os.path.dirname(animation_dir)
count = 0
while True:
staged_scenes_dir = os.path.join(
animation_subdir, "staged_scenes_{}".format(count)
)
if not os.path.exists(staged_scenes_dir):
os.makedirs(staged_scenes_dir)
break
# Otherwise, keep trying new names until
# there is a free one
count += 1
for count, f in reversed(list(enumerate(sorted_files))):
# Going in reversed order means that when finder
# sorts by date modified, it shows up in the
# correct order
symlink_name = os.path.join(
staged_scenes_dir,
"Scene_{:03}_{}".format(
count,
"".join(f.split(os.sep)[-2:])
)
)
os.symlink(f, symlink_name)
if __name__ == "__main__":
if len(sys.argv) < 2:
raise Exception("No module given.")
module_name = sys.argv[1]
stage_animations(module_name)