From edfc2de50a4a15fc883a57dffed1e1ae60e93fc9 Mon Sep 17 00:00:00 2001
From: Christopher Rosell <chrippa@tanuki.se>
Date: Wed, 21 Mar 2012 22:49:15 +0100
Subject: Make livestreamer more usable as a library.

---
 src/livestreamer/__init__.py         |  2 +-
 src/livestreamer/cli.py              |  6 +++---
 src/livestreamer/plugins/__init__.py |  1 +
 src/livestreamer/plugins/justintv.py | 14 ++++++++++----
 src/livestreamer/stream.py           | 28 +++++++++++++++++++++++++---
 5 files changed, 40 insertions(+), 11 deletions(-)

(limited to 'src')

diff --git a/src/livestreamer/__init__.py b/src/livestreamer/__init__.py
index 7b5a628..6a0b463 100644
--- a/src/livestreamer/__init__.py
+++ b/src/livestreamer/__init__.py
@@ -10,7 +10,7 @@ def resolve_url(url):
     for name, plugin in plugins.get_plugins().items():
         if plugin.can_handle_url(url):
             obj = plugin(url)
-            return (name, obj)
+            return obj
     return None
 
 def get_plugins():
diff --git a/src/livestreamer/cli.py b/src/livestreamer/cli.py
index c395319..6187f39 100644
--- a/src/livestreamer/cli.py
+++ b/src/livestreamer/cli.py
@@ -19,12 +19,12 @@ def exit(msg):
     sys.exit()
 
 def handle_url(args):
-    (pluginname, plugin) = livestreamer.resolve_url(args.url)
+    channel = livestreamer.resolve_url(args.url)
 
-    if not plugin:
+    if not channel:
         exit(("No plugin can handle url: {0}").format(args.url))
 
-    streams = plugin.get_streams()
+    streams = channel.get_streams()
 
     if not streams:
         exit(("No streams found on url: {0}").format(args.url))
diff --git a/src/livestreamer/plugins/__init__.py b/src/livestreamer/plugins/__init__.py
index a989799..cf6954b 100644
--- a/src/livestreamer/plugins/__init__.py
+++ b/src/livestreamer/plugins/__init__.py
@@ -8,6 +8,7 @@ plugins_loaded = {}
 class Plugin(object):
     def __init__(self, url):
         self.url = url
+        self.args = None
 
     @classmethod
     def can_handle_url(self, url):
diff --git a/src/livestreamer/plugins/justintv.py b/src/livestreamer/plugins/justintv.py
index 8db4db4..b21f9a4 100644
--- a/src/livestreamer/plugins/justintv.py
+++ b/src/livestreamer/plugins/justintv.py
@@ -13,6 +13,8 @@ class JustinTV(Plugin):
     MetadataURL = "http://www.justin.tv/meta/{0}.xml?on_site=true"
     SWFURL = "http://www.justin.tv/widgets/live_embed_player.swf"
 
+    cookie = None
+
     @classmethod
     def can_handle_url(self, url):
         return ("justin.tv" in url) or ("twitch.tv" in url)
@@ -21,6 +23,10 @@ class JustinTV(Plugin):
     def handle_parser(self, parser):
         parser.add_argument("--jtv-cookie", metavar="cookie", help="JustinTV cookie to allow access to subscription channels")
 
+    @classmethod
+    def handle_args(self, args):
+        self.cookie = args.jtv_cookie
+
     def _get_channel_name(self, url):
         fd = urllib.urlopen(url)
         data = fd.read()
@@ -30,9 +36,9 @@ class JustinTV(Plugin):
         if match:
             return str(match.group(1), "ascii")
 
-    def _get_metadata(self, channel, cookie=None):
-        if cookie:
-            headers = {"Cookie": cookie}
+    def _get_metadata(self, channel):
+        if self.cookie:
+            headers = {"Cookie": self.cookie}
             req = urllib.Request(self.MetadataURL.format(channel), headers=headers)
         else:
             req = urllib.Request(self.MetadataURL.format(channel))
@@ -76,7 +82,7 @@ class JustinTV(Plugin):
         if not channelname:
             return False
 
-        metadata = self._get_metadata(channelname, self.args.jtv_cookie)
+        metadata = self._get_metadata(channelname)
 
         if "chansub_guid" in metadata:
             fd = urllib.urlopen(self.StreamInfoURLSub.format(channelname, randomp, metadata["chansub_guid"]))
diff --git a/src/livestreamer/stream.py b/src/livestreamer/stream.py
index 4893172..c2b5658 100644
--- a/src/livestreamer/stream.py
+++ b/src/livestreamer/stream.py
@@ -1,14 +1,35 @@
 from livestreamer.utils import CommandLine
 
+import subprocess, shlex
+
 class Stream(object):
     def __init__(self, params={}):
         self.params = params
+        self.process = None
+
+    def open(self):
+        if self.process:
+            self.close()
+
+        cmdline = self.cmdline().format()
+        args = shlex.split(cmdline)
+
+        self.process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    def read(self, *args):
+        if self.process:
+            return self.process.stdout.read(*args)
+
+    def close(self):
+        if self.process:
+            self.process.kill()
+            self.process = None
 
-    def cmdline(self, out):
+    def cmdline(self, out=None):
        raise NotImplementedError
 
 class RTMPStream(Stream):
-    def cmdline(self, out):
+    def cmdline(self, out=None):
         cmd = CommandLine("rtmpdump")
 
         for key, value in self.params.items():
@@ -18,6 +39,7 @@ class RTMPStream(Stream):
 
             cmd.args[key] = value
 
-        cmd.args["flv"] = out
+        if out:
+            cmd.args["flv"] = out
 
         return cmd
-- 
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