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#!/usr/bin/env python3
# SPDX-FileCopyrightText: 2015-2025 Blender Authors
#
# SPDX-License-Identifier: Apache-2.0
import argparse
import sys
import subprocess
from pathlib import Path
from modules import render_report
def get_movie_file_suffix(filepath):
"""
Get suffix used for the video output.
The script does not have access to the .blend file content, so deduct it from the .blend filename.
"""
return Path(filepath).stem.split("_")[-1]
def get_arguments(filepath, output_filepath):
suffix = get_movie_file_suffix(filepath)
args = [
"--background",
"--factory-startup",
"--enable-autoexec",
"--debug-memory",
"--debug-exit-on-error",
filepath,
"-o", f"{output_filepath}.{suffix}",
"-a",
]
return args
def create_argparse():
parser = argparse.ArgumentParser(
description="Run test script for each blend file in TESTDIR, comparing the render result with known output."
)
parser.add_argument("--blender", required=True)
parser.add_argument("--testdir", required=True)
parser.add_argument("--outdir", required=True)
parser.add_argument("--oiiotool", required=True)
parser.add_argument("--batch", default=False, action="store_true")
return parser
class VideoOutputReport(render_report.Report):
def postprocess_test(self, blender, test):
suffix = get_movie_file_suffix(test.filepath)
video_file = Path(f"{test.tmp_out_img_base}.{suffix}").as_posix()
# If oiiotool supports the FFmpeg this could be used instead.
"""
command = (
self.oiiotool,
"-i", video_file,
"-o", test.tmp_out_img,
)
try:
subprocess.check_output(command)
except subprocess.CalledProcessError as e:
pass
"""
# Blender's render pipeline always appends frame suffix unless # is present in the file path.
# Here we need the file name to match exactly, so we trick Blender by going 0001 -> #### mask
# allowing render piepline to expand it back to 0001.
out_filepath = test.tmp_out_img.replace("0001", "####")
python_expr = (
f"""
import bpy
scene = bpy.context.scene
scene.render.resolution_x = 1920
scene.render.resolution_y = 1080
scene.render.resolution_percentage = 25
ed = scene.sequence_editor_create()
strip = ed.strips.new_movie(name='input', filepath='{video_file}', channel=1, frame_start=1)
strip.colorspace_settings.name = 'Non-Color'
""")
command = (
blender,
"--background",
"--factory-startup",
"--enable-autoexec",
"--python-expr", python_expr,
"-o", out_filepath,
"-F", "PNG",
"-f", "1",
)
try:
subprocess.check_output(command)
except subprocess.CalledProcessError as e:
pass
def main():
parser = create_argparse()
args = parser.parse_args()
report = VideoOutputReport("Sequencer", args.outdir, args.oiiotool)
report.set_pixelated(True)
# Default error tolerances are quite large, lower them.
report.set_fail_threshold(2.0 / 255.0)
report.set_fail_percent(0.01)
report.set_reference_dir("reference")
ok = report.run(args.testdir, args.blender, get_arguments, batch=args.batch)
sys.exit(not ok)
if __name__ == "__main__":
main()
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