Adding static RTSP libraries and dependencies to Android.

QGCCommon.pri

@@ -38,6 +38,7 @@ linux {
         equals(ANDROID_TARGET_ARCH, x86)  {
             CONFIG += Androidx86Build
             DEFINES += __androidx86__
+            DEFINES += QGC_DISABLE_UVC
             message("Android x86 build")
         } else {
             message("Android Arm build")

src/VideoStreaming/VideoStreaming.cc

@@ -1,4 +1,4 @@
-    /****************************************************************************
+/****************************************************************************
  *
  *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
  *
@@ -19,6 +19,9 @@
 
 #if defined(QGC_GST_STREAMING)
 #include <gst/gst.h>
+#ifdef __android__
+//#define ANDDROID_GST_DEBUG
+#endif
 #endif
 
 #include "VideoStreaming.h"
@@ -34,9 +37,11 @@
     GST_PLUGIN_STATIC_DECLARE(coreelements);
     GST_PLUGIN_STATIC_DECLARE(libav);
     GST_PLUGIN_STATIC_DECLARE(rtp);
+    GST_PLUGIN_STATIC_DECLARE(rtsp);
     GST_PLUGIN_STATIC_DECLARE(udp);
     GST_PLUGIN_STATIC_DECLARE(videoparsersbad);
     GST_PLUGIN_STATIC_DECLARE(x264);
+    GST_PLUGIN_STATIC_DECLARE(rtpmanager);
 #endif
     G_END_DECLS
 #endif
@@ -51,6 +56,49 @@ static void qgcputenv(const QString& key, const QString& root, const QString& pa
 #endif
 #endif
 
+#ifdef ANDDROID_GST_DEBUG
+// Redirects stdio and stderr to logcat
+#include <unistd.h>
+#include <pthread.h>
+#include <android/log.h>
+
+static int pfd[2];
+static pthread_t thr;
+static const char *tag = "myapp";
+
+static void *thread_func(void*)
+{
+    ssize_t rdsz;
+    char buf[128];
+    while((rdsz = read(pfd[0], buf, sizeof buf - 1)) > 0) {
+        if(buf[rdsz - 1] == '\n') --rdsz;
+        buf[rdsz] = 0;  /* add null-terminator */
+        __android_log_write(ANDROID_LOG_DEBUG, tag, buf);
+    }
+    return 0;
+}
+
+int start_logger(const char *app_name)
+{
+    tag = app_name;
+
+    /* make stdout line-buffered and stderr unbuffered */
+    setvbuf(stdout, 0, _IOLBF, 0);
+    setvbuf(stderr, 0, _IONBF, 0);
+
+    /* create the pipe and redirect stdout and stderr */
+    pipe(pfd);
+    dup2(pfd[1], 1);
+    dup2(pfd[1], 2);
+
+    /* spawn the logging thread */
+    if(pthread_create(&thr, 0, thread_func, 0) == -1)
+        return -1;
+    pthread_detach(thr);
+    return 0;
+}
+#endif
+
 void initializeVideoStreaming(int &argc, char* argv[])
 {
 #if defined(QGC_GST_STREAMING)
@@ -70,6 +118,11 @@ void initializeVideoStreaming(int &argc, char* argv[])
         qgcputenv("GST_PLUGIN_PATH", currentDir, "/gstreamer-plugins");
     #endif
         // Initialize GStreamer
+        #ifdef ANDDROID_GST_DEBUG
+        start_logger("gst_log");
+        qputenv("GST_DEBUG", "*:4");
+        qputenv("GST_DEBUG_NO_COLOR", "1");
+        #endif
         GError* error = NULL;
         if (!gst_init_check(&argc, &argv, &error)) {
             qCritical() << "gst_init_check() failed: " << error->message;
@@ -82,9 +135,11 @@ void initializeVideoStreaming(int &argc, char* argv[])
         GST_PLUGIN_STATIC_REGISTER(coreelements);
         GST_PLUGIN_STATIC_REGISTER(libav);
         GST_PLUGIN_STATIC_REGISTER(rtp);
+        GST_PLUGIN_STATIC_REGISTER(rtsp);
         GST_PLUGIN_STATIC_REGISTER(udp);
         GST_PLUGIN_STATIC_REGISTER(videoparsersbad);
         GST_PLUGIN_STATIC_REGISTER(x264);
+        GST_PLUGIN_STATIC_REGISTER(rtpmanager);
     #endif
 #else
     Q_UNUSED(argc);

src/VideoStreaming/VideoStreaming.pri

@@ -89,19 +89,24 @@ LinuxBuild {
             -lgstcoreelements \
             -lgstudp \
             -lgstrtp \
+            -lgstrtsp \
             -lgstx264 \
             -lgstlibav \
-            -lgstvideoparsersbad
+            -lgstsdpelem \
+            -lgstvideoparsersbad \
+            -lgstrtpmanager \
+            -lgstrmdemux \
 
         # Rest of GStreamer dependencies
         LIBS += -L$$GST_ROOT/lib \
             -lgstfft-1.0 -lm  \
             -lgstnet-1.0 -lgio-2.0 \
             -lgstaudio-1.0 -lgstcodecparsers-1.0 -lgstbase-1.0 \
-            -lgstreamer-1.0 -lgsttag-1.0 -lgstrtp-1.0 -lgstpbutils-1.0 \
-            -lgstvideo-1.0 -lavformat -lavcodec -lavresample -lavutil -lx264 \
-            -lbz2 -lgobject-2.0 \
-            -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0 -lorc-0.4 -liconv -lffi -lintl
+            -lgstreamer-1.0 -lgstrtp-1.0 -lgstpbutils-1.0 -lgstrtsp-1.0 -lgsttag-1.0 \
+            -lgstvideo-1.0 -lavformat -lavcodec -lavutil -lx264 -lavresample \
+            -lgstriff-1.0 -lgstcontroller-1.0 -lgstapp-1.0 \
+            -lgstsdp-1.0 -lbz2 -lgobject-2.0 \
+            -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0 -lorc-0.4 -liconv -lffi -lintl \
 
         INCLUDEPATH += \
             $$GST_ROOT/include/gstreamer-1.0 \