加入初始化旗標

gstreamer_player/src/com/hisharp/gstreamer_player/GstLibrary.java

@@ -25,6 +25,8 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
 
     private String tag = "";
 
+    private Boolean isInit = false;
+
     public GstLibrary(Context context) {
         this.mAppContext = context.getApplicationContext();
 
@@ -53,10 +55,12 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
     //private final String defaultMediaUri = "rtsp://admin:admin@192.168.0.77:554/media/video2";
 
     public void play() {
+        if (!isInit) return;
         nativePlay();
     }
 
     public void stop() {
+        if (!isInit) return;
         nativePause();
     }
 
@@ -70,6 +74,7 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
     }
 
     public void releaseSurface() {
+        isInit = false;
         nativeSurfaceFinalize();
     }
 
@@ -113,6 +118,8 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
         if (rtspUrl != null) {
             nativeSetUri(rtspUrl);
         }
+
+        isInit = true;
     }
 
     // Called from native code when the size of the media changes or is first detected.
@@ -134,6 +141,7 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
 
     @Override
     public void close() throws IOException {
+        isInit = false;
         try {
             nativeFinalize();
         } catch (Exception e) {
@@ -144,7 +152,8 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
     @Override
     public void surfaceCreated(SurfaceHolder holder) {
         Log.d(TAG + "+" + tag, "Surface created: " + holder.getSurface());
-        Log.i (TAG + "+" + tag, "GStreamer surfaceCreated:");
+        Log.i (TAG + "+" + tag, "GStreamer surfaceCreated");
+        isInit = true;
         nativeSurfaceInit(holder.getSurface());
     }
 
@@ -158,5 +167,6 @@ public class GstLibrary implements Closeable, SurfaceHolder.Callback {
     public void surfaceDestroyed(SurfaceHolder holder) {
         Log.d(TAG + "+" + tag, "Surface destroyed");
         releaseSurface();
+        isInit = false;
     }
 }