使用python接收冰铸元数据 [英] Receive ice cast meta data with python
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问题描述
我尝试使用以下脚本获取mp3流的强制转换元数据:
I tried to get the ice cast meta data of a mp3 stream with this script:
import requests
url = 'http://stream.jam.fm/jamfm-nmr/mp3-128/konsole/'
try:
response = requests.get(url, headers={'Icy-MetaData': 1}, stream=True)
response.raise_for_status()
except requests.RequestException, e:
print 'Error:', e
else:
headers, stream = response.headers, response.raw
meta_int = headers.get('icy-metaint')
if meta_int is not None:
audio_length = int(meta_int)
while True:
try:
audio_data = stream.read(audio_length)
meta_byte = stream.read(1)
if (meta_byte):
meta_length = ord(meta_byte) * 16
meta_data = stream.read(meta_length)
print meta_data
except KeyboardInterrupt:
break
response.close()
这有效,但仅适用于第一个软件包.曲目改变时,我将永远不会收到标题信息的更新.我的问题是:这是否是预期的行为,并且轨道信息仅发送了一次,还是我出了点问题?我希望能够注意到曲目的变化而无需不时轮询流.
This works but just for the first package. I will never receive an update on the title information when the track changes. My question is: Is this intended behavior and the track info is just send once or did I something wrong? I would like to be able to notice a track change without polling the stream from time to time.
推荐答案
while True:
try:
#new request
response = requests.get(url, headers={'Icy-MetaData': 1}, stream=True)
response.raise_for_status()
headers, stream = response.headers, response.raw
meta_int = headers.get('icy-metaint')
audio_data = stream.read(audio_length)
meta_byte = stream.read(1)
if (meta_byte):
meta_length = ord(meta_byte) * 16
meta_data = stream.read(meta_length)
print (meta_data)
except KeyboardInterrupt:
break
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