hlsdownloader.py 文件源码

def find_bandwidth_index(playlist, average_download_speed):
    if not playlist.is_variant:
        return 0

    bandwidth_options = []
    for index, playlist_item in enumerate(playlist.playlists):
        bandwidth_options.append({
            'index': index,
            'bandwidth': float(playlist.playlists[index].stream_info.bandwidth)
        })
    bandwidth_options = sorted(bandwidth_options, key=lambda k: int(k['bandwidth']), reverse=True)

    for bandwidth_option in bandwidth_options:
        if bandwidth_option['bandwidth'] < average_download_speed:
            log("SELECTED BANDWIDTH: %s" % bandwidth_option['bandwidth'])
            return bandwidth_option['index']

    return 0