Updated README.md

README.md

@@ -42,19 +42,67 @@ Getting list of files inside torrent is straightforward:
     from torrent2http import State, Engine, MediaType
     from contextlib import closing
 
+    # XBMC addon handle
+    handle = ...
+    # Playable list item
+    listitem = ...
     # We can know file_id of needed video file on this step, if no, we'll try to detect one.
     file_id = None
+    # Flag will set to True when engine is ready to resolve URL to XBMC
+    ready = False
+    # Set pre-buffer size to 15Mb. This is a size of file that need to be downloaded before we resolve URL to XMBC 
+    pre_buffer_bytes = 15*1024*1024
     engine = Engine(uri="...")
-    with closing(self.engine):
+    with closing(engine):
         # Start engine and instruct torrent2http to begin download first file, 
         # so it can start searching and connecting to peers  
-        self.engine.start(file_id or 0)
+        engine.start(file_id or 0)
-        while not xbmc.abortRequested:
+        while not xbmc.abortRequested and not ready:
-            sleep(self.SLEEP_DELAY)
+            xbmc.sleep(500)
-            status = self.engine.status()
+            status = engine.status()
-            self.engine.check_torrent_error(status)
+            # Check if there is loading torrent error and raise exception 
-            if status.state in [State.DOWNLOADING, State.FINISHED, State.SEEDING]:
+            engine.check_torrent_error(status)
+            # Trying to detect file_id
+            if file_id is None:
+                # Get torrent files list, filtered by video file type only
+                files = engine.list(media_types=[MediaType.VIDEO])
+                # If torrent metadata is not loaded yet then continue
+                if files is None:
+                    continue
+                # Torrent has no video files
+                if not files:
+                    break
+                # Select first matching file                    
+                file_id = files[0].index
+                file_status = files[0]
+            else:
+                # If we've got file_id already, get file status
+                file_status = engine.file_status(file_id)
+                # If torrent metadata is not loaded yet then continue
+                if not file_status:
+                    continue
+            if status.state == State.DOWNLOADING:
+                # Wait until minimum pre_buffer_bytes downloaded before we resolve URL to XBMC
+                if file_status.download >= pre_buffer_bytes:
+                    ready = True
+                    break
+            elif status.state in [State.FINISHED, State.SEEDING]:
+                # We have already downloaded file
                 ready = True
                 break
+            # Here you can update pre-buffer progress dialog, for example.
+            # Note that State.CHECKING also need waiting until fully finished, so it better to use resume_file option
+            # for engine to avoid CHECKING state if possible.
+            # ...
+        if ready:
+            # Resolve URL to XBMC
+            listitem.SetPath(file_status.url)
+            xbmcplugin.SetResolvedUrl(handle, True, listitem)
+            # Wait until playing finished or abort requested
+            while not xbmc.abortRequested and xbmc.Player().isPlaying():
+                xbmc.sleep(500)
         
-... todo ...
+### Fully working example ###
+
+You can look into fully working [example](https://github.com/anteo/plugin.video.okino/blob/master/resources/lib/okino/torrent/stream/t2h_stream.py). This is
+excerpt from my plugin using script.module.torrent2http. It rather complicated but it includes error handling, showing progress dialog and other features.