#4 drop a configurable number of frames to improve performance

.clivrt

@@ -5,4 +5,5 @@ loglevel = ERROR
 videostyle = ascii-color
 webcam = FAKE
 framerate = 30
+frame_interval = 4
 video_size = 800x600

README.md

@@ -34,6 +34,7 @@ loglevel = WARN
 videostyle = just-ascii
 webcam = /dev/video0
 framerate = 30
+frame_interval = 4
 video_size = 800x600
 ```
 * signalinghosturl = Which server to connect to for finding/connecting/chatting with peers (note once a peer connection is established this is no longer required for video chat). Must begin with ws:// or wss://

cli/media/videotransformtrack.py

@@ -1,4 +1,5 @@
 
+from configparser import ConfigParser
 from video_to_ascii import video_engine
 from aiortc.contrib.media import MediaStreamTrack
 import sys
@@ -14,17 +15,22 @@ class VideoTransformTrack(MediaStreamTrack):
 
     kind = "video"
     ve = None
+    frame_count:int = 0
+    frame_interval:str
 
-    def __init__(self, track):
+    def __init__(self, track, config:ConfigParser):
         super().__init__()
         self.track = track
+        self.frame_interval = config.defaults().get('frame_interval', '4')
         if PLATFORM: sys.stdout.write("echo -en '\033[2J' \n")
         else: sys.stdout.write('\033[2J')
         self.ve = video_engine.VideoEngine()
 
     async def recv(self):
+        self.frame_count+=1
         frame = await self.track.recv()
         # TODO into correct frame when we update prompt
         # currently each strategy does  sys.stdout.write(msg)
-        await self.ve.render_strategy.render_frame(frame.to_ndarray(format="bgr24")) # why dont we use render()?
+        if (self.frame_count % int(self.frame_interval) == 0):
+            await self.ve.render_strategy.render_frame(frame.to_ndarray(format="bgr24")) # why dont we use render()?
         return frame

clivrt.py

@@ -132,7 +132,7 @@ async def networktick():
 def on_track(track):
     logging.debug('Receiving %s' % track.kind)
     if track.kind == 'video':
-        videotransform = videotransformtrack.VideoTransformTrack(network_mgr.remote_relay.subscribe(track)) # Create a 'proxy' around the video for transforming
+        videotransform = videotransformtrack.VideoTransformTrack(track=network_mgr.remote_relay.subscribe(track), config=config) # Create a 'proxy' around the video for transforming
         videotransform.ve.set_strategy(vidstyle)
         network_mgr.recorder.addTrack(videotransform)
     # TODO: play audio track if present