stream optimizations

scripts/mjpeg_http_proxy.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# HTTP proxy wrapper for MJPEG stream from tcpserversink
+# This adds proper HTTP headers for browser compatibility
+
+TCP_PORT="${1:-8081}"
+HTTP_PORT="${2:-8080}"
+
+echo "Starting MJPEG HTTP proxy..."
+echo "Listening for TCP stream on port $TCP_PORT"
+echo "Serving HTTP on port $HTTP_PORT"
+echo ""
+echo "Configure vizionStreamer to use tcpserversink on port $TCP_PORT"
+echo "Then access the stream at: http://localhost:$HTTP_PORT"
+echo ""
+
+# Start socat to wrap TCP stream with HTTP headers
+socat -v TCP-LISTEN:$HTTP_PORT,reuseaddr,fork \
+  SYSTEM:"echo 'HTTP/1.1 200 OK'; \
+  echo 'Content-Type: multipart/x-mixed-replace; boundary=--videoboundary'; \
+  echo 'Cache-Control: no-cache'; \
+  echo 'Pragma: no-cache'; \
+  echo 'Connection: close'; \
+  echo ''; \
+  socat - TCP:localhost:$TCP_PORT"

scripts/mjpeg_http_server.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+"""
+Simple HTTP server that proxies MJPEG stream from tcpserversink
+Adds proper HTTP headers for browser compatibility
+"""
+
+import socket
+import sys
+from http.server import HTTPServer, BaseHTTPRequestHandler
+from socketserver import ThreadingMixIn
+
+class MJPEGProxyHandler(BaseHTTPRequestHandler):
+    tcp_host = 'localhost'
+    tcp_port = 9000
+
+    def do_GET(self):
+        """Handle GET requests and proxy the MJPEG stream"""
+        try:
+            # Connect to the GStreamer tcpserversink
+            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            sock.connect((self.tcp_host, self.tcp_port))
+
+            # Send HTTP headers
+            self.send_response(200)
+            self.send_header('Content-Type', 'multipart/x-mixed-replace; boundary=--videoboundary')
+            self.send_header('Cache-Control', 'no-cache')
+            self.send_header('Pragma', 'no-cache')
+            self.send_header('Connection', 'close')
+            self.end_headers()
+
+            # Stream data from TCP socket to HTTP client
+            while True:
+                data = sock.recv(4096)
+                if not data:
+                    break
+                self.wfile.write(data)
+
+        except Exception as e:
+            print(f"Error: {e}", file=sys.stderr)
+        finally:
+            try:
+                sock.close()
+            except:
+                pass
+
+    def log_message(self, format, *args):
+        """Custom logging"""
+        print(f"[{self.client_address[0]}] {format % args}")
+
+
+class ThreadedHTTPServer(ThreadingMixIn, HTTPServer):
+    """Handle requests in separate threads"""
+    pass
+
+
+if __name__ == '__main__':
+    tcp_port = int(sys.argv[1]) if len(sys.argv) > 1 else 8081
+    http_port = int(sys.argv[2]) if len(sys.argv) > 2 else 8080
+
+    MJPEGProxyHandler.tcp_port = tcp_port
+
+    server = ThreadedHTTPServer(('0.0.0.0', http_port), MJPEGProxyHandler)
+
+    print(f"MJPEG HTTP Proxy Server")
+    print(f"========================")
+    print(f"Proxying TCP stream from localhost:{tcp_port}")
+    print(f"HTTP server listening on port {http_port}")
+    print(f"")
+    print(f"Configure vizionStreamer with:")
+    print(f'  ./scripts/set_pipeline_mjpeg.sh {tcp_port}')
+    print(f"")
+    print(f"Access stream at: http://localhost:{http_port}")
+    print(f"")
+
+    try:
+        server.serve_forever()
+    except KeyboardInterrupt:
+        print("\nShutting down...")
+        server.shutdown()

scripts/set_pipeline_mjpeg.sh

@@ -4,8 +4,18 @@
 SOCKET="/tmp/vizion_control.sock"
 PORT="${1:-8080}"
 
+# Check if gst-plugins-good with souphttpsink is available
+if gst-inspect-1.0 souphttpsink &>/dev/null; then
+    echo "Using souphttpsink for HTTP server..."
+    PIPELINE="videoconvert ! jpegenc quality=85 ! multipartmux boundary=\"--videoboundary\" ! souphttpsink port=$PORT"
+else
+    echo "WARNING: souphttpsink not found. Using tcpserversink (may not work in browsers)."
+    echo "Install gst-plugins-good: sudo apt install gstreamer1.0-plugins-good"
+    PIPELINE="videoconvert ! jpegenc quality=85 ! multipartmux ! tcpserversink host=0.0.0.0 port=$PORT"
+fi
+
 echo "Setting MJPEG HTTP streaming pipeline on port $PORT..."
-echo "{\"command\":\"set_pipeline\",\"params\":{\"pipeline\":\"videoconvert ! jpegenc ! multipartmux ! tcpserversink host=0.0.0.0 port=$PORT\"}}" | socat - UNIX-CONNECT:$SOCKET
+echo "{\"command\":\"set_pipeline\",\"params\":{\"pipeline\":\"$PIPELINE\"}}" | socat - UNIX-CONNECT:$SOCKET
 
 echo ""
 echo "Pipeline set. Start streaming with start_stream.sh"

scripts/set_pipeline_mjpeg_passthrough.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# Optimized pipeline for cameras that already output MJPEG format
+# Passes through MJPEG data without re-encoding
+
+SOCKET="/tmp/vizion_control.sock"
+PORT="${1:-8080}"
+
+# Check if gst-plugins-good with souphttpsink is available
+if gst-inspect-1.0 souphttpsink &>/dev/null; then
+    echo "Using souphttpsink for HTTP server (no re-encoding)..."
+    PIPELINE="multipartmux boundary=\"--videoboundary\" ! souphttpsink port=$PORT"
+else
+    echo "WARNING: souphttpsink not found. Using tcpserversink (requires HTTP proxy)."
+    echo "Install gst-plugins-good: sudo apt install gstreamer1.0-plugins-good"
+    echo "Or use: ./scripts/mjpeg_http_server.py $PORT 8080"
+    PIPELINE="multipartmux ! tcpserversink host=0.0.0.0 port=$PORT"
+fi
+
+echo "Setting optimized MJPEG passthrough pipeline on port $PORT..."
+echo "NOTE: This pipeline is optimized for cameras with native MJPEG output."
+echo ""
+
+echo "{\"command\":\"set_pipeline\",\"params\":{\"pipeline\":\"$PIPELINE\"}}" | socat - UNIX-CONNECT:$SOCKET
+
+echo ""
+echo "Pipeline set. Start streaming with start_stream.sh"
+if gst-inspect-1.0 souphttpsink &>/dev/null; then
+    echo "View stream in browser: http://localhost:$PORT"
+else
+    echo "Start HTTP proxy first: ./scripts/mjpeg_http_server.py $PORT 8080"
+    echo "Then view stream: http://localhost:8080"
+fi