66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
import pathlib
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import sys
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import wave
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import bpy
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def write_silence(path):
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path.parent.mkdir(parents=True, exist_ok=True)
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with wave.open(str(path), "wb") as stream:
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stream.setnchannels(1)
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stream.setsampwidth(2)
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stream.setframerate(8000)
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stream.writeframes(b"\0\0" * 8000)
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def main(output_path):
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output = pathlib.Path(output_path).resolve()
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media = output.parent / "media"
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audio_path = media / "sequencer-silence.wav"
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image_path = media / "sequencer-frame.png"
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write_silence(audio_path)
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bpy.ops.wm.read_factory_settings(use_empty=True)
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image = bpy.data.images.new("SequencerFrame", width=8, height=8, alpha=True)
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image.generated_color = (0.2, 0.4, 0.8, 1.0)
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image.filepath_raw = str(image_path)
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image.file_format = "PNG"
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image.save()
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bpy.data.images.remove(image)
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scene = bpy.context.scene
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scene.name = "SequencerScene"
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scene.render.fps = 24
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scene.render.fps_base = 1.001
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editor = scene.sequence_editor_create()
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sound = editor.strips.new_sound("WebSound", str(audio_path), channel=1, frame_start=10)
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sound.mute = True
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sound.lock = True
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sound.sound.filepath = "//media/sequencer-silence.wav"
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image_strip = editor.strips.new_image("WebImage", str(image_path), channel=2, frame_start=12)
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image_strip.directory = "//media/"
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image_strip.elements[0].filename = "sequencer-frame.png"
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image_strip.frame_final_duration = 20
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second_image = editor.strips.new_image("WebImageB", str(image_path), channel=3, frame_start=12)
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second_image.directory = "//media/"
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second_image.elements[0].filename = "sequencer-frame.png"
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second_image.frame_final_duration = 20
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cross = editor.strips.new_effect(
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"WebCross", "CROSS", channel=4, frame_start=12, length=20, input1=image_strip, input2=second_image)
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cross.mute = True
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output.parent.mkdir(parents=True, exist_ok=True)
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bpy.ops.wm.save_as_mainfile(filepath=str(output), compress=False)
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print(f"sequencer-fixture-generated path={output} strips={len(editor.strips_all)}")
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if __name__ == "__main__":
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arguments = sys.argv[sys.argv.index("--") + 1:]
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if len(arguments) != 1:
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raise SystemExit("usage: blender -b --python generate-sequencer-fixture.py -- output.blend")
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main(arguments[0])
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