Add a SurfaceView and tell native code about it. Still no sink though.

gst-sdk/tutorials/android-tutorial-1/jni/Android.mk

@@ -19,6 +19,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE    := tutorial-1
 LOCAL_SRC_FILES := tutorial-1.c
 LOCAL_SHARED_LIBRARIES := gstreamer_android
+LOCAL_LDLIBS := -landroid
 include $(BUILD_SHARED_LIBRARY)
 
 GSTREAMER_PLUGINS = coreelements audiotestsrc videotestsrc ogg theora vorbis ffmpegcolorspace playback app audioconvert audiorate audioresample adder coreindexers gdp gio uridecodebin videorate videoscale typefindfunctions libvisual pango subparse

gst-sdk/tutorials/android-tutorial-1/jni/tutorial-1.c

@@ -1,5 +1,7 @@
 #include <string.h>
 #include <jni.h>
+#include <android/native_window.h>
+#include <android/native_window_jni.h>
 #include <gst/gst.h>
 #include <pthread.h>
 
@@ -22,6 +24,7 @@ typedef struct _CustomData {
   jobject app;
   GstElement *pipeline;
   GMainLoop *main_loop;
+  ANativeWindow *native_window;
 } CustomData;
 
 static pthread_t gst_app_thread;
@@ -151,12 +154,32 @@ void gst_class_init (JNIEnv* env, jclass klass) {
   GST_DEBUG ("The MethodID for the setMessage method is %p", set_message_method_id);
 }
 
+void gst_native_surface_init (JNIEnv *env, jobject thiz, jobject surface) {
+  CustomData *data = GET_CUSTOM_DATA (env, thiz, custom_data_field_id);
+  GST_DEBUG ("Received surface %p", surface);
+  if (data->native_window) {
+    GST_DEBUG ("Releasing previous native window %p", data->native_window);
+    ANativeWindow_release (data->native_window);
+  }
+  data->native_window = ANativeWindow_fromSurface(env, surface);
+  GST_DEBUG ("Got Native Window %p", data->native_window);
+}
+
+void gst_native_surface_finalize (JNIEnv *env, jobject thiz) {
+  CustomData *data = GET_CUSTOM_DATA (env, thiz, custom_data_field_id);
+  GST_DEBUG ("Releasing Native Window %p", data->native_window);
+  ANativeWindow_release (data->native_window);
+  data->native_window = NULL;
+}
+
 static JNINativeMethod native_methods[] = {
   { "nativeInit", "()V", (void *) gst_native_init},
   { "nativeFinalize", "()V", (void *) gst_native_finalize},
   { "nativePlay", "()V", (void *) gst_native_play},
   { "nativePause", "()V", (void *) gst_native_pause},
-  { "classInit", "()V", (void *) gst_class_init}
+  { "classInit", "()V", (void *) gst_class_init},
+  { "nativeSurfaceInit", "(Ljava/lang/Object;)V", (void *) gst_native_surface_init},
+  { "nativeSurfaceFinalize", "()V", (void *) gst_native_surface_finalize}
 };
 
 jint JNI_OnLoad(JavaVM *vm, void *reserved) {

gst-sdk/tutorials/android-tutorial-1/res/layout/main.xml

@@ -31,4 +31,9 @@
             android:text="@string/button_stop" />
     </LinearLayout>
 
+    <SurfaceView
+        android:id="@+id/surface_video"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
 </LinearLayout>

gst-sdk/tutorials/android-tutorial-1/src/com/gst_sdk_tutorials/tutorial_1/Tutorial1.java

@@ -18,18 +18,22 @@ package com.gst_sdk_tutorials.tutorial_1;
 import android.app.Activity;
 import android.util.Log;
 import android.os.Bundle;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ImageButton;
 import android.widget.TextView;
 
-public class Tutorial1 extends Activity
+public class Tutorial1 extends Activity implements SurfaceHolder.Callback {
-{
     private native void nativeInit();
     private native void nativeFinalize();
     private native void nativePlay();
     private native void nativePause();
     private static native void classInit();
+    private native void nativeSurfaceInit(Object surface);
+    private native void nativeSurfaceFinalize();
     private long native_custom_data;
 
     /* Called when the activity is first created. 
@@ -40,35 +44,39 @@ public class Tutorial1 extends Activity
 
         setContentView(R.layout.main);
 
-        ImageButton play = (ImageButton)this.findViewById(R.id.button_play);
+        ImageButton play = (ImageButton) this.findViewById(R.id.button_play);
         play.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 nativePlay();
             }
         });
 
-        ImageButton pause = (ImageButton)this.findViewById(R.id.button_stop);
+        ImageButton pause = (ImageButton) this.findViewById(R.id.button_stop);
         pause.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 nativePause();
             }
         });
 
+        SurfaceView sv = (SurfaceView) this.findViewById(R.id.surface_video);
+        SurfaceHolder sh = sv.getHolder();
+        sh.addCallback(this);
+
         nativeInit();
     }
 
-    protected void onDestroy () {
+    protected void onDestroy() {
         nativeFinalize();
         super.onDestroy();
     }
 
-    private void setMessage (final String message) {
+    private void setMessage(final String message) {
-      final TextView tv = (TextView)this.findViewById(R.id.textview_message);
+        final TextView tv = (TextView) this.findViewById(R.id.textview_message);
-      Log.d ("GStreamer", "Received message " + message);
+        Log.d("GStreamer", "Received message " + message);
         try {
-        runOnUiThread (new Runnable() {@Override public void run()
+        runOnUiThread (new Runnable() {public void run()
           {
-            tv.setText (message);
+                    tv.setText(message);
                 }
             });
         } catch (Exception e) {
@@ -81,4 +89,20 @@ public class Tutorial1 extends Activity
         System.loadLibrary("tutorial-1");
         classInit();
     }
+
+    public void surfaceChanged(SurfaceHolder holder, int format, int width,
+            int height) {
+        Log.d("GStreamer", "Surface changed to format " + format + " width "
+                + width + " height " + height);
+        nativeSurfaceInit (holder.getSurface());
+    }
+
+    public void surfaceCreated(SurfaceHolder holder) {
+        Log.d("GStreamer", "Surface created: " + holder.getSurface());
+    }
+
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        Log.d("GStreamer", "Surface destroyed");
+        nativeSurfaceFinalize ();
+    }
 }