<raspberry pi > 用树莓派来听落网电台

apt-get  install mpg123

#!/usr/bin/python
# coding: utf-8
# Filename: luoFm.py

import httplib
import json
import re
import sys
import subprocess
import urllib2
import time
from select import select

reload(sys)
sys.setdefaultencoding(‘utf-8‘)


class LuoFM_CLI:
    def __init__(self, channel):
        self.user = None
        self.username = ‘‘
        self.ch = channel
        self.kbps = 128

    def get_songlist(self):
        httpConnection = httplib.HTTPConnection(‘www.luoo.net‘)
        httpConnection.request(‘GET‘, ‘/music/‘ + self.ch)
        luoHtml = httpConnection.getresponse().read()
        playPattern = "volPlaylist\s*=\s*(\[\s*\{[\s\S]+?\}\s*\]);"
        playUrl = re.compile(playPattern).findall(luoHtml)
        self.songlist = json.loads(playUrl[0])

    def control(self, r):
        rlist, _, _ = select([sys.stdin], [], [], 1)
        if rlist:
            s = sys.stdin.readline()
            if s[0] == ‘n‘:
                return ‘next‘
            elif s[0] == ‘p‘:
                return ‘prev‘

    def start(self):
        self.get_songlist()
        n = 0
        while n < len(self.songlist):
            r = self.songlist[n]
            song_uri = r[‘mp3‘]
            self.playmode = True
            request = urllib2.Request(song_uri)
            response = urllib2.urlopen(request)
            headers = response.info()
            #获取播放时长，这里选用128kbps 的码率 时长 = mp3的大小(kb) * 8 / 128
            durations = int(headers[‘Content-Length‘]) * 8 / 1000 / self.kbps
            starttime = time.time()
            print(u‘正在播放： ‘ + r[‘title‘] + u‘     歌手： ‘ + r[‘artist‘])
            self.player = subprocess.Popen([‘mpg123‘, ‘-v‘, song_uri], shell=False, universal_newlines=True, stdin=None,
                                           stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
            while self.playmode:
                c = self.control(r)
                endtime = time.time()
                usetime = endtime - starttime - durations
                if c == ‘next‘ or usetime > 4:
                    self.player.kill()
                    n = n + 1
                    break
                elif c == ‘prev‘:
                    self.player.kill()
                    n = n - 1
                    break

        self.start


c = raw_input(‘请输入您想听的专辑数字:‘)
luoFm = LuoFM_CLI(c)
use_info = u‘‘‘
    下一曲输入n
    上一曲输入p
‘‘‘
print(use_info)
while 1:
    luoFm.start()