不可以直接将视频播放输出为.glb文件格式。但是可以通过以下步骤将一段视频转换为glb文件：

1. 导入视频文件到Blender中。

import bpy

# Set up the scene
bpy.context.scene.render.fps = 24
bpy.context.scene.frame_start = 1
bpy.context.scene.frame_end = 100

# Import the video
bpy.ops.sequencer.movie_strip_add(filepath="/path/to/video.mp4")

# Set up the output path and format
bpy.context.scene.render.image_settings.file_format = 'FFMPEG'
bpy.context.scene.render.filepath = "/path/to/output.glb"
bpy.context.scene.render.use_overwrite = True

2. 创建新的3D场景和相机，并将视频渲染到该场景中。

# Create a new scene and camera
scene = bpy.data.scenes.new(name="Video_Render")
camera_data = bpy.data.cameras.new("Camera")
camera = bpy.data.objects.new("Camera", camera_data)
scene.camera = camera

# Link the camera to the scene, and make it the active camera object
bpy.context.view_layer.active_layer_collection = bpy.context.view_layer.layer_collection.children[0]
bpy.ops.object.select_all(action="DESELECT")
camera.select_set(True)
bpy.context.view_layer.objects.active = camera
bpy.ops.object.camera_add()

# Create a new render layer and add the video strip to it
render_layer = scene.view_layers.new(name="RenderLayer")
render_layer.use_pass_object_index = True
render_layer.use_pass_material_index = True
render_layer.use_pass_uv = True

video_strip = scene.sequence_editor.sequences_all[0]
render_layer.sequencer_layers.new(
    name="Video_Strip", 
    channel=1, 
    sequence_input=video_strip
)

# Render the scene to a glb file
bpy.ops.render.render(animation=True)

3. 导出.glb文件。

import bpy

# Export the glb file
bpy.ops.export_scene.gltf(
    filepath="/path/to/output.glb", 
    selected=True, 
    export_format='GLB', 
    check_existing=False, 
    export_materials=False,
    export_textures=False
)

通过以上步骤，可以将视频输出为.glb文件格式。