Internet radio browser GUI for music/video streams from various directory services.

⌈⌋ ⎇ branch:  streamtuner2


Check-in [a1c4d0960a]

Overview
Comment:Experimental Xiph.org JSON API (doesn't work)
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SHA1: a1c4d0960a024d6e5e49b92f906df68da969f26f
User & Date: mario on 2014-04-27 23:33:05
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Context
2014-05-04
02:15
Utilize caching interface on IO for Xiph.org´s JSON API check-in: 4e7851c986 user: mario tags: xiphjson
2014-04-27
23:33
Experimental Xiph.org JSON API (doesn't work) check-in: a1c4d0960a user: mario tags: xiphjson
22:48
Fully replace ahttp.ajax with ahttp.get() wrapper check-in: b9af78503d user: mario tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified channels/xiph.py from [04e8c2b58d] to [59dd45edfc]. 

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#
# api: streamtuner2
# title: Xiph.org
# description: Xiph/ICEcast radio directory
# version: 0.1
#
#
# Xiph.org maintains the Ogg streaming standard and Vorbis audio compression
# format, amongst others. The ICEcast server is an alternative to SHOUTcast.
# But it turns out, that Xiph lists only MP3 streams, no OGG. And the directory
# is less encompassing than Shoutcast.
#


#
#
#



# streamtuner2 modules
from config import conf
from mygtk import mygtk
import ahttp as http
from channels import *
from config import __print__, dbg


# python modules
import re
from xml.sax.saxutils import unescape as entity_decode, escape as xmlentities
import xml.dom.minidom



          
# I wonder what that is for                                             ---------------------------------------
class xiph (ChannelPlugin):

        # desc
        api = "streamtuner2"
        module = "xiph"
        title = "Xiph.org"
        version = 0.1
        homepage = "http://dir.xiph.org/"
        base_url = "http://dir.xiph.org/"

        yp = "yp.xml"
        listformat = "url/http"
        config = [
           {"name":"xiph_min_bitrate", "value":64, "type":"int", "description":"minimum bitrate, filter anything below", "category":"filter"}
        ]

        # content
        categories = ["all", [],           ]





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#
# api: streamtuner2
# title: Xiph.org
# description: Xiph/ICEcast radio directory
# version: 0.2
#
#
# Xiph.org maintains the Ogg streaming standard and Vorbis audio compression
# format, amongst others. The ICEcast server is an alternative to SHOUTcast.


#
# It meanwhile provides a JSOL dump, which is faster to download and process.
# So we'll use that over the older yp.xml. (Sadly it also doesn't output
# homepage URLs, listeners, etc.)
#
#



# streamtuner2 modules
from config import conf
from mygtk import mygtk
import ahttp as http
from channels import *
from config import __print__, dbg
import json

# python modules
import re
#from xml.sax.saxutils import unescape as entity_decode, escape as xmlentities
#import xml.dom.minidom



          
# I wonder what that is for                                             ---------------------------------------
class xiph (ChannelPlugin):

        # desc
        api = "streamtuner2"
        module = "xiph"
        title = "Xiph.org"
        version = 0.2
        homepage = "http://dir.xiph.org/"
        base_url = "http://api.dir.xiph.org/"
        json = "experimental/full"
        old_yp = "yp.xml"
        listformat = "url/http"
        config = [
           {"name":"xiph_min_bitrate", "value":64, "type":"int", "description":"minimum bitrate, filter anything below", "category":"filter"}
        ]

        # content
        categories = ["all", [],           ]
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        def update_streams(self, cat, search=""):

            # there is actually just a single category to download,
            # all else are virtual
            if (cat == "all"):
            
                #-- get data
                yp = http.get(self.base_url + self.yp)




                
                #-- extract
                l = []
                __print__( dbg.DATA, "xml.dom.minidom parses yp.xml" )
                for entry in xml.dom.minidom.parseString(yp).getElementsByTagName("entry"):
                    bitrate = self.bitrate(self.x(entry, "bitrate"))
                    if conf.xiph_min_bitrate and bitrate and bitrate >= int(conf.xiph_min_bitrate):
                      l.append({
                        "title": str(self.x(entry, "server_name")),
                        "url": str(self.x(entry, "listen_url")),
                        "format": self.mime_fmt(str(self.x(entry, "server_type"))[6:]),
                        "bitrate": bitrate,
                        "channels": str(self.x(entry, "channels")),
                        "samplerate": str(self.x(entry, "samplerate")),
                        "genre": str(self.x(entry, "genre")),
                        "playing": str(self.x(entry, "current_song")),
                        "listeners": 0,
                        "max": 0,              # this information is in the html view, but not in the yp.xml (seems pretty static, we might as well make it a built-in list)
                        "homepage": "",
                      })
                
            # filter out a single subtree
            else:
                rx = re.compile(self.filter.get(cat.lower(), cat.lower()))
                l = []








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        def update_streams(self, cat, search=""):

            # there is actually just a single category to download,
            # all else are virtual
            if (cat == "all"):
            
                #-- get data
                data = http.get(self.base_url + self.json)
                data = re.sub('":NaN,', '":0,', data)   # the output is JSOL, not valid JSON
                data = re.sub('[\\\\]"(?!,)', '\'', data)   # and some invalid string escaping
                data = re.sub('[\\\\]{1}', '', data)   # and all other backslashes to be safe
                data = data.decode("latin-1")
                
                #-- extract
                l = []
                __print__( dbg.DATA, "processing dir.xiph.org/experimental/full JSON" )
                for e in json.loads(data):
                    bitrate = e["bitrate"]
                    if conf.xiph_min_bitrate and bitrate and bitrate >= int(conf.xiph_min_bitrate):
                      l.append({
                        "title": e["stream_name"],
                        "url": e["listen_url"],
                        "format": "audio/mpeg",
                        "bitrate": int(e["bitrate"]),
                        "channels": e["channels"],
                        "samplerate": e["samplerate"],
                        "genre": e["genre"],
                        "playing": e["current_song"],
                        "listeners": 0,
                        "max": 0,
                        "homepage": "",
                      })
                
            # filter out a single subtree
            else:
                rx = re.compile(self.filter.get(cat.lower(), cat.lower()))
                l = []
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