Python 3从互联网广播流中获取歌曲名称

问题描述

如何从互联网广播流中获取歌曲名称?

How can I get song name from internet radio stream?

Python:获取shoutcast/互联网广播的名称从url接收电台我在这里看，但是只有广播电台的名称.但是，如何获得正在播放的歌曲的名称?这是我要获取歌曲名称的流链接. http://pool.cdn.lagardere.cz/fm-evropa2-128

Python: Get name of shoutcast/internet radio station from url I looked here, but there is only getting name of radio station. But how to get name of the playing song? Here is stream link from where I want to get name of song. http://pool.cdn.lagardere.cz/fm-evropa2-128

我应该怎么做?你能帮我吗?

How should I do it? Can you help me please?

推荐答案

要获取流标题，您需要请求元数据.请参见 shoutcast/icecast协议说明:

To get the stream title, you need to request metadata. See shoutcast/icecast protocol description:

#!/usr/bin/env python
from __future__ import print_function
import re
import struct
import sys
try:
    import urllib2
except ImportError:  # Python 3
    import urllib.request as urllib2

url = 'http://pool.cdn.lagardere.cz/fm-evropa2-128'  # radio stream
encoding = 'latin1' # default: iso-8859-1 for mp3 and utf-8 for ogg streams
request = urllib2.Request(url, headers={'Icy-MetaData': 1})  # request metadata
response = urllib2.urlopen(request)
print(response.headers, file=sys.stderr)
metaint = int(response.headers['icy-metaint'])
for _ in range(10): # # title may be empty initially, try several times
    response.read(metaint)  # skip to metadata
    metadata_length = struct.unpack('B', response.read(1))[0] * 16  # length byte
    metadata = response.read(metadata_length).rstrip(b'\0')
    print(metadata, file=sys.stderr)
    # extract title from the metadata
    m = re.search(br"StreamTitle='([^']*)';", metadata)
    if m:
        title = m.group(1)
        if title:
            break
else:
    sys.exit('no title found')
print(title.decode(encoding, errors='replace'))

在这种情况下，流标题为空.

The stream title is empty in this case.

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