Update

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/.gitignore

@@ -0,0 +1,4 @@
+.externalNativeBuild/
+assets/
+gst-build-*/
+src/org/freedesktop/gstreamer/GStreamer.java

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/AndroidManifest.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="org.freedesktop.gstreamer.tutorials.tutorial_1"
+      android:versionCode="1"
+      android:versionName="1.0">
+
+    <application android:label="@string/app_name"
+                 android:icon="@drawable/gstreamer_logo_1">
+        <activity android:name=".Tutorial1"
+                  android:label="@string/app_name"
+                  android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/build.gradle

@@ -0,0 +1,72 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 32
+
+    defaultConfig {
+        applicationId "org.freedesktop.gstreamer.tutorials.tutorial_1"
+        minSdkVersion 15
+        targetSdkVersion 32
+        versionCode 1
+        versionName "1.0"
+
+
+        externalNativeBuild {
+            ndkBuild {
+                def gstRoot
+
+                if (project.hasProperty('gstAndroidRoot'))
+                    gstRoot = project.gstAndroidRoot
+                else
+                    gstRoot = System.env.GSTREAMER_ROOT_ANDROID
+
+                if (gstRoot == null)
+                    throw new GradleException('GSTREAMER_ROOT_ANDROID must be set, or "gstAndroidRoot" must be defined in your gradle.properties in the top level directory of the unpacked universal GStreamer Android binaries')
+
+                arguments "NDK_APPLICATION_MK=jni/Application.mk", "GSTREAMER_JAVA_SRC_DIR=src", "GSTREAMER_ROOT_ANDROID=$gstRoot", "GSTREAMER_ASSETS_DIR=src/assets"
+
+                targets "tutorial-1"
+
+                // All archs except MIPS and MIPS64 are supported
+                abiFilters  'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
+            }
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            sourceSets {
+                main {
+                    manifest.srcFile 'AndroidManifest.xml'
+                    java.srcDirs = ['src']
+                    resources.srcDirs = ['src']
+                    aidl.srcDirs = ['src']
+                    renderscript.srcDirs = ['src']
+                    res.srcDirs = ['res']
+                    assets.srcDirs = ['assets']
+                }
+            }
+        }
+    }
+
+    externalNativeBuild {
+        ndkBuild {
+            path 'jni/Android.mk'
+        }
+    }
+}
+
+afterEvaluate {
+    if (project.hasProperty('compileDebugJavaWithJavac'))
+        project.compileDebugJavaWithJavac.dependsOn 'externalNativeBuildDebug'
+    if (project.hasProperty('compileReleaseJavaWithJavac'))
+        project.compileReleaseJavaWithJavac.dependsOn 'externalNativeBuildRelease'
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    testImplementation 'junit:junit:4.12'
+    implementation 'com.android.support:appcompat-v7:23.1.1'
+}

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/jni/Android.mk

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+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE    := tutorial-1
+LOCAL_SRC_FILES := tutorial-1.c dummy.cpp
+LOCAL_SHARED_LIBRARIES := gstreamer_android
+LOCAL_LDLIBS := -llog
+include $(BUILD_SHARED_LIBRARY)
+
+ifndef GSTREAMER_ROOT_ANDROID
+$(error GSTREAMER_ROOT_ANDROID is not defined!)
+endif
+
+ifeq ($(TARGET_ARCH_ABI),armeabi)
+GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/arm
+else ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
+GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/armv7
+else ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
+GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/arm64
+else ifeq ($(TARGET_ARCH_ABI),x86)
+GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/x86
+else ifeq ($(TARGET_ARCH_ABI),x86_64)
+GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/x86_64
+else
+$(error Target arch ABI not supported: $(TARGET_ARCH_ABI))
+endif
+
+GSTREAMER_NDK_BUILD_PATH  := $(GSTREAMER_ROOT)/share/gst-android/ndk-build/
+GSTREAMER_PLUGINS         := coreelements
+GSTREAMER_EXTRA_LIBS      := -liconv
+include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer-1.0.mk

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/jni/Application.mk

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+APP_ABI = armeabi armeabi-v7a arm64-v8a x86 x86_64
+APP_STL = c++_shared

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/jni/tutorial-1.c

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+#include <string.h>
+#include <jni.h>
+#include <android/log.h>
+#include <gst/gst.h>
+
+/*
+ * Java Bindings
+ */
+static jstring
+gst_native_get_gstreamer_info (JNIEnv * env, jobject thiz)
+{
+  char *version_utf8 = gst_version_string ();
+  jstring *version_jstring = (*env)->NewStringUTF (env, version_utf8);
+  g_free (version_utf8);
+  return version_jstring;
+}
+
+static JNINativeMethod native_methods[] = {
+  {"nativeGetGStreamerInfo", "()Ljava/lang/String;",
+      (void *) gst_native_get_gstreamer_info}
+};
+
+jint
+JNI_OnLoad (JavaVM * vm, void *reserved)
+{
+  JNIEnv *env = NULL;
+
+  if ((*vm)->GetEnv (vm, (void **) &env, JNI_VERSION_1_4) != JNI_OK) {
+    __android_log_print (ANDROID_LOG_ERROR, "tutorial-1",
+        "Could not retrieve JNIEnv");
+    return 0;
+  }
+  jclass klass = (*env)->FindClass (env,
+      "org/freedesktop/gstreamer/tutorials/tutorial_1/Tutorial1");
+  (*env)->RegisterNatives (env, klass, native_methods,
+      G_N_ELEMENTS (native_methods));
+
+  return JNI_VERSION_1_4;
+}

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/res/layout/main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical" >
+
+    <TextView
+        android:id="@+id/textview_info"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center_vertical|center_horizontal"
+        android:textAppearance="?android:attr/textAppearanceLarge" />
+
+</LinearLayout>

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">GStreamer tutorial 1</string>
+</resources>

subprojects/gst-docs/examples/tutorials/android/android-tutorial-1/src/org/freedesktop/gstreamer/tutorials/tutorial_1/Tutorial1.java

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+package org.freedesktop.gstreamer.tutorials.tutorial_1;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.freedesktop.gstreamer.GStreamer;
+
+public class Tutorial1 extends Activity {
+    private native String nativeGetGStreamerInfo();
+
+    // Called when the activity is first created.
+    @Override
+    public void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+
+        try {
+            GStreamer.init(this);
+        } catch (Exception e) {
+            Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
+            finish();
+            return;
+        }
+
+        setContentView(R.layout.main);
+
+        TextView tv = (TextView)findViewById(R.id.textview_info);
+        tv.setText("Welcome to " + nativeGetGStreamerInfo() + " !");
+    }
+
+    static {
+        System.loadLibrary("gstreamer_android");
+        System.loadLibrary("tutorial-1");
+    }
+
+}