fix/ocp_pipeline_config (#480)

filter_SEI option didnt account for using legacy audio service

config was also not being passed to the OCPPipeline

```javascript
{
  "intents": {
    "OCP": {
      // legacy forces old audio service instead of OCP
      "legacy": false,
      // min confidence to accept MediaType
      "classifier_threshold": 0.4,
      // filter results settings
      "min_score": 50,
      // filter results from "wrong" MediaType
      "filter_media": true,
      // filter results we lack plugins to play
      "filter_SEI": true,
      // playback mode -
      // 0 - auto
      // 10 - audio results only
      // 20 - video results only
      // 30 - cast video to audio unconditionally
      "playback_mode": 0,
      // if MediaType query fails, try Generic query
      "search_fallback": true,
      // enable mycroft common play pipeline
      "legacy_cps": true
    }
  }
}
```

ovos_core/intent_services/__init__.py

@@ -116,7 +116,7 @@ def _load_ocp_pipeline(self):
             LOG.warning("EXPERIMENTAL: the OCP pipeline is enabled!")
             try:
                 from ovos_core.intent_services.ocp_service import OCPPipelineMatcher
-                self.ocp = OCPPipelineMatcher(self.bus)
+                self.ocp = OCPPipelineMatcher(self.bus, config=self.config.get("OCP", {}))
             except ImportError:
                 LOG.error("OCPPipelineMatcher unavailable, please install ovos-utils >= 0.1.0")
 

ovos_core/intent_services/ocp_service.py

@@ -15,7 +15,7 @@
 from ovos_bus_client.message import Message
 from ovos_bus_client.util import wait_for_reply
 from ovos_config import Configuration
-from ovos_plugin_manager.ocp import load_stream_extractors
+from ovos_plugin_manager.ocp import load_stream_extractors, available_extractors
 from ovos_utils import classproperty
 from ovos_utils.log import LOG
 from ovos_utils.messagebus import FakeBus
@@ -115,7 +115,7 @@ def __init__(self, bus=None, config=None):
         self.search_lock = RLock()
         self.player_state = PlayerState.STOPPED.value
         self.media_state = MediaState.UNKNOWN.value
-        self.available_SEI = []
+        self._available_SEI = []
 
         self.intent_matchers = {}
         self.skill_aliases = {
@@ -209,6 +209,12 @@ def register_ocp_intents(self):
         self.bus.on("ocp:like_song", self.handle_like_intent)
         self.bus.on("ocp:legacy_cps", self.handle_legacy_cps)
 
+    @property
+    def available_SEI(self):
+        if self.use_legacy_audio:
+            return available_extractors()
+        return self._available_SEI
+
     def handle_get_SEIs(self, message: Message):
         """report available StreamExtractorIds
         OCP plugins handle specific SEIs and return a real stream / extra metadata
@@ -223,7 +229,7 @@ def handle_get_SEIs(self, message: Message):
         eg. for the youtube plugin a skill can return
           "youtube//https://youtube.com/watch?v=wChqNkd6F24"
         """
-        self.available_SEI = message.data["SEI"]
+        self._available_SEI = message.data["SEI"]
         LOG.info(f"Available stream extractor plugins: {self.available_SEI}")
 
     def handle_skill_register(self, message: Message):
@@ -933,7 +939,7 @@ def match_legacy(self, utterances: List[str], lang: str, message: Message = None
 
         legacy base class at mycroft/skills/common_play_skill.py marked for removal in ovos-core 0.1.0
         """
-        if not self.config.get("legacy_cps"):
+        if not self.config.get("legacy_cps", True):
             # needs to be explicitly enabled in pipeline config
             return None