Update android to use gstreamer 1.18.1 (#9229)

* VideoReceiver: Update to use gstreamer 1.18.1

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

* travis: Use gstreamer 1.18.1 for android

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

* VideoReceiver: Update README with the new android gstreamer version 1.18.1

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

.travis.yml

@@ -112,8 +112,9 @@ install:
 
   # android dependencies: qt, gstreamer, android-ndk
   - if [ "${SPEC}" = "android-clang" ]; then
-        wget --quiet https://s3-us-west-2.amazonaws.com/qgroundcontrol/dependencies/gstreamer-1.0-android-${GSTREAMER_NAME}-1.14.4.tar.bz2 &&
-        tar jxf gstreamer-1.0-android-${GSTREAMER_NAME}-1.14.4.tar.bz2 -C ${TRAVIS_BUILD_DIR} &&
+        wget --quiet https://s3.amazonaws.com/downloads.bluerobotics.com/QGC/dependencies/gstreamer-1.0-android-universal-1.18.1.tar.xz &&
+        mkdir gstreamer-1.0-android-universal-1.18.1 &&
+        tar xf gstreamer-1.0-android-universal-1.18.1.tar.xz -C gstreamer-1.0-android-universal-1.18.1 &&
         wget --quiet https://dl.google.com/android/repository/android-ndk-r20-linux-x86_64.zip &&
         unzip android-ndk-r20-linux-x86_64.zip > /dev/null &&
         export ANDROID_NDK_ROOT=`pwd`/android-ndk-r20 &&

src/VideoReceiver/README.md

@@ -85,12 +85,12 @@ The installer places them under ~/Library/Developer/GStreamer/iPhone.sdk/GStream
 
 ### Android
 
-Download the gstreamer from here: [gstreamer-1.0-android-universal-1.14.4.tar.bz2](https://gstreamer.freedesktop.org/data/pkg/android/1.14.4/gstreamer-1.0-android-universal-1.14.4.tar.bz2)
+Download the gstreamer from here: [gstreamer-1.0-android-universal-1.18.1.tar.xz](https://gstreamer.freedesktop.org/data/pkg/android/1.18.1/gstreamer-1.0-android-universal-1.18.1.tar.xz)
 
-Create a directory named "gstreamer-1.0-android-universal-1.14.4" under the root qgroundcontrol directory (the same directory qgroundcontrol.pro is located). Extract the downloaded archive under this directory. That's where the build system will look for it. Make sure your archive tool doesn't create any additional top level directories. The structure after extracting the archive should look like this:
+Create a directory named "gstreamer-1.0-android-universal-1.18.1" under the root qgroundcontrol directory (the same directory qgroundcontrol.pro is located). Extract the downloaded archive under this directory. That's where the build system will look for it. Make sure your archive tool doesn't create any additional top level directories. The structure after extracting the archive should look like this:
 ```
 qgroundcontrol
-├── gstreamer-1.0-android-universal-1.14.4
+├── gstreamer-1.0-android-universal-1.18.1
 │   │
 │   ├──armv7
 │   │   ├── bin

src/VideoReceiver/VideoReceiver.pri

@@ -62,13 +62,13 @@ LinuxBuild {
         QMAKE_POST_LINK += $$escape_expand(\\n) xcopy \"$$GST_ROOT_WIN\\lib\\gstreamer-1.0\\validate\\*.dll\" \"$$DESTDIR_WIN\\gstreamer-plugins\\validate\\\" /Y $$escape_expand(\\n)
     }
 } else:AndroidBuild {
-    #- gstreamer assumed to be installed in $$PWD/../../gstreamer-1.0-android-universal-1.14.4/***
+    #- gstreamer assumed to be installed in $$PWD/../../gstreamer-1.0-android-universal-1.18.1/***
     contains(QT_ARCH, arm) {
-        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.14.4/armv7
+        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.18.1/armv7
     } else:contains(QT_ARCH, arm64) {
-        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.14.4/arm64
+        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.18.1/arm64
     } else {
-        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.14.4/x86
+        GST_ROOT = $$PWD/../../gstreamer-1.0-android-universal-1.18.1/x86
     }
     exists($$GST_ROOT) {
         QMAKE_CXXFLAGS  += -pthread