Add set_playback_rate method

[n18abdel]

No description provided.

[emontnemery]

This looks good, thanks @n18abdel 👍

Can you add an example setting playback rate, or give an example of a cast service which supports setting the playback rate?

[n18abdel]

Sure here is an example, using the default media receiver on a SHIELD Android TV
PS: it seems like speeds outside of the 0.5-2 range are not supported, but I cannot say for sure

from time import sleep

import pychromecast
from pychromecast import quick_play

# Change to the friendly name of your Chromecast
CAST_NAME = "SHIELD"
APP_NAME = "default_media_receiver"
SPEEDS = [0.5, 0.75, 1, 1.25, 1.5, 1.75, 2]

# Change to an audio or video url
MEDIA_URL = (
    "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"
)

cast: pychromecast.Chromecast = pychromecast.get_listed_chromecasts(
            friendly_names=[CAST_NAME]
        )[0][0]
cast.wait()
app_data = {"media_id": MEDIA_URL}
quick_play.quick_play(cast, APP_NAME, app_data)
cast.media_controller.block_until_active()

for speed in SPEEDS:
    print(f"Setting playback rate to {speed}")
    cast.media_controller.set_playback_rate(speed)
    sleep(10)

[emontnemery]

Thanks @n18abdel 👍