我可以使用本地资源播放mp4吗？

Question

我正在尝试使用flet来播放本地的MP4文件。

当我查看官方文档时，发现他们给出的代码示例只使用了“http”资源：

sample_media =  [
                    ft.VideoMedia("https://user-images.githubusercontent.com/28951144/229373720-14d69157-1a56-4a78-a2f4-d7a134d7c3e9.mp4"),
                    ft.VideoMedia("https://user-images.githubusercontent.com/28951144/229373718-86ce5e1d-d195-45d5-baa6-ef94041d0b90.mp4")
                ]

问题：
我可以使用本地资源（文件）来通过flet播放MP4吗？如果可以，应该怎么做？
文档中没有关于指定本地视频的示例。这是不是意味着flet无法做到这一点？

我尝试过的：
我把网址从http改成了./video/movie.mp4，但没有成功。

环境：Mac
语言：Python
库：flet

import random
import flet as ft


def main(page: ft.Page):
    page.theme_mode = ft.ThemeMode.LIGHT
    page.title = "TheEthicalVideo"
    page.window_always_on_top = True
    page.spacing = 20
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER

    def handle_pause(e):
        video.pause()
        print("Video.pause()")

    def handle_play_or_pause(e):
        video.play_or_pause()
        print("Video.play_or_pause()")

    def handle_play(e):
        video.play()
        print("Video.play()")

    sample_media = [
        ft.VideoMedia(
            "https://user-images.githubusercontent.com/28951144/229373709-603a7a89-2105-4e1b-a5a5-a6c3567c9a59.mp4",
            extras={
                "artist": "Thousand Foot Krutch",
                "album": "The End Is Where We Begin",
            },
            http_headers={
                "Foo": "Bar",
                "Accept": "*/*",
            },
        ),
    ]

    page.add(
        video := ft.Video(
            expand=True,
            playlist=sample_media[0:2],
            playlist_mode=ft.PlaylistMode.LOOP,
            fill_color=ft.colors.BLUE_400,
            aspect_ratio=16/9,
            volume=100,
            autoplay=False,
            filter_quality=ft.FilterQuality.HIGH,
            muted=False,
            on_loaded=lambda e: print("Video loaded successfully!"),
            on_enter_fullscreen=lambda e: print("Video entered fullscreen!"),
            on_exit_fullscreen=lambda e: print("Video exited fullscreen!"),
        ),
        ft.Row(
            wrap=True,
            alignment=ft.MainAxisAlignment.CENTER,
            controls=[
                ft.ElevatedButton("Play", on_click=handle_play),
                ft.ElevatedButton("Pause", on_click=handle_pause),
                ft.ElevatedButton("Play Or Pause", on_click=handle_play_or_pause),
                ft.ElevatedButton("Stop", on_click=handle_stop),
                ft.ElevatedButton("Next", on_click=handle_next),
                ft.ElevatedButton("Previous", on_click=handle_previous),
                ft.ElevatedButton("Seek s=10", on_click=handle_seek),
                ft.ElevatedButton("Jump to first Media", on_click=handle_jump),
                ft.ElevatedButton("Add Random Media", on_click=handle_add_media),
                ft.ElevatedButton("Remove Random Media", on_click=handle_remove_media),
            ],
        ),
        ft.Slider(
            min=0,
            value=100,
            max=100,
            label="Volume = {value}%",
            divisions=10,
            width=400,
            on_change=handle_volume_change,
        ),
        ft.Slider(
            min=1,
            value=1,
            max=3,
            label="PlaybackRate = {value}X",
            divisions=6,
            width=400,
            on_change=handle_playback_rate_change,
        ),
    )


ft.app(target=main)