def get_platform_http_zip():
    """Return the download link for the current platform"""
    check_system()
    try:
        MAIN_SIT = "https://github.com/zackees/ffmpeg_bins"
        r = requests.get(MAIN_SIT, timeout=10)
        r.raise_for_status()
        return MAIN_SIT + PLATFORM_ZIP_FILES[sys.platform]
    except:
        print("Warning, main url download fail, try backup url.")
        BACKUP_SIT = "https://airtestproject.s3.netease.com"
        return BACKUP_SIT + BACKUP_PLATFORM_ZIP_FILES[sys.platform]
Return the download link for the current platform
airtest/utils/ffmpeg/ffmpeg_setter.py