Don't need to init mVideoStream etc as they are done in Camera(). Set stream_index in packet.

src/zm_local_camera.cpp

@@ -676,9 +676,6 @@ LocalCamera::LocalCamera(
     imgConversionContext = nullptr;
   } // end if capture and conversion_tye == swscale
 #endif
-    mVideoStreamId = 0;
-    mAudioStreamId = -1;
-    mVideoStream = nullptr;
 } // end LocalCamera::LocalCamera
 
 LocalCamera::~LocalCamera() {
@@ -2175,6 +2172,7 @@ int LocalCamera::Capture(ZMPacket &zm_packet) {
     zm_packet.image->Assign(width, height, colours, subpixelorder, buffer, imagesize);
   } // end if doing conversion or not
 
+  zm_packet.packet.stream_index = mVideoStreamId;
   zm_packet.codec_type = AVMEDIA_TYPE_VIDEO;
   zm_packet.keyframe = 1;
   return 1;