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# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
# This file is part of Power Sequencer.
"""
Add-on preferences and interface in the Blender preferences window.
"""
import subprocess
import bpy
from bpy.props import BoolProperty, StringProperty
def get_preferences(context):
return context.preferences.addons[__package__].preferences
class PowerSequencerPreferences(bpy.types.AddonPreferences):
bl_idname = __package__
proxy_25: bpy.props.BoolProperty(name="25%", default=False)
proxy_50: bpy.props.BoolProperty(name="50%", default=False)
proxy_75: bpy.props.BoolProperty(name="75%", default=False)
proxy_100: bpy.props.BoolProperty(name="100%", default=False)
# Code adapted from Krzysztof Trzciński's work
ffmpeg_executable: StringProperty(
name="Path to ffmpeg executable",
default="",
update=lambda self, context: self.update_ffmpeg_executable(context),
subtype="FILE_PATH",
)
ffmpeg_status: StringProperty(default="")
ffmpeg_is_executable_valid: BoolProperty(default=False)
def update_ffmpeg_executable(self, context):
error_message, info = self._try_run_ffmpeg(self.ffmpeg_executable)
self.ffmpeg_is_executable_valid = error_message == ""
self.ffmpeg_status = error_message if error_message != "" else info
def _try_run_ffmpeg(self, path):
"""Runs ffmpeg -version, and returns an error message if it failed"""
error_message, info = "", ""
try:
info: str = subprocess.check_output([path, "-version"]).decode("utf-8")
info = info[: info.find("Copyright")]
print(info)
except (OSError, subprocess.CalledProcessError):
error_message = "Path `{}` is not a valid ffmpeg executable".format(path)
return error_message, info
def draw(self, context):
layout = self.layout
layout.label(text="Proxy")
row = layout.row()
row.prop(self, "proxy_25")
row.prop(self, "proxy_50")
row.prop(self, "proxy_75")
row.prop(self, "proxy_100")
text = [
"(Optional) FFMpeg executable to use for multithread renders and proxy generation. "
"Use this to render with a version of ffmpeg that's not on your system's PATH variable."
]
for line in text:
layout.label(text=line)
layout.prop(self, "ffmpeg_executable")
icon = "INFO" if self.ffmpeg_is_executable_valid else "ERROR"
layout.label(text=self.ffmpeg_status, icon=icon)
register_preferences, unregister_preferences = bpy.utils.register_classes_factory(
[PowerSequencerPreferences]
)
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