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Code Issues 1 Projects Releases Wiki Activity

Some advances, nothing functional.

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This commit is contained in:
Xavi Artigas 2012-10-24 12:41:53 +02:00
parent ff1b8da189
commit 9b4ce1ee63
6 changed files with 90 additions and 51 deletions
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3
gst-sdk/tutorials/android-tutorial-4/AndroidManifest.xml
View file

@ -15,8 +15,5 @@
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.lamerman.FileDialog"
android:label="@string/filechooser_name">
</activity>
</application>
</manifest>

2
gst-sdk/tutorials/android-tutorial-4/jni/Android.mk
View file

@ -16,5 +16,5 @@ GSTREAMER_SDK_ROOT := $(GSTREAMER_SDK_ROOT_ANDROID)
endif
GSTREAMER_NDK_BUILD_PATH := $(GSTREAMER_SDK_ROOT)/share/gst-android/ndk-build/
include $(GSTREAMER_NDK_BUILD_PATH)/plugins.mk
GSTREAMER_PLUGINS := $(GSTREAMER_PLUGINS_CORE) $(GSTREAMER_PLUGINS_CODECS) $(GSTREAMER_PLUGINS_SYS) $(GSTREAMER_PLUGINS_EFFECTS)
GSTREAMER_PLUGINS := $(GSTREAMER_PLUGINS_CORE) $(GSTREAMER_PLUGINS_PLAYBACK) $(GSTREAMER_PLUGINS_CODECS) $(GSTREAMER_PLUGINS_NET) $(GSTREAMER_PLUGINS_SYS)
include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer.mk

76
gst-sdk/tutorials/android-tutorial-4/jni/tutorial-4.c
View file

@ -30,7 +30,6 @@ typedef struct _CustomData {
GMainContext *context; /* GLib context used to run the main loop */
GMainLoop *main_loop; /* GLib main loop */
gboolean initialized; /* To avoid informing the UI multiple times about the initialization */
GstElement *video_sink; /* The video sink element which receives XOverlay commands */
ANativeWindow *native_window; /* The Android native window where video will be rendered */
} CustomData;
@ -41,6 +40,7 @@ static JavaVM *java_vm;
static jfieldID custom_data_field_id;
static jmethodID set_message_method_id;
static jmethodID on_gstreamer_initialized_method_id;
static jmethodID on_media_size_changed_method_id;
/*
* Private methods
@ -122,6 +122,31 @@ static void state_changed_cb (GstBus *bus, GstMessage *msg, CustomData *data) {
}
}
/* Called when Pad Caps change on the video sink */
static void caps_cb (GstPad *pad, GParamSpec *pspec, CustomData *data) {
JNIEnv *env = get_jni_env ();
GstVideoFormat fmt;
int width;
int height;
GstCaps *caps;
caps = gst_pad_get_negotiated_caps (pad);
if (gst_video_format_parse_caps(caps, &fmt, &width, &height)) {
int par_n, par_d;
if (gst_video_parse_caps_pixel_aspect_ratio (caps, &par_n, &par_d)) {
width = width * par_n / par_d;
}
GST_DEBUG ("Media size changed to %dx%d", width, height);
(*env)->CallVoidMethod (env, data->app, on_media_size_changed_method_id, (jint)width, (jint)height);
if ((*env)->ExceptionCheck (env)) {
GST_ERROR ("Failed to call Java method");
(*env)->ExceptionClear (env);
}
}
gst_caps_unref(caps);
}
/* Check if all conditions are met to report GStreamer as initialized.
* These conditions will change depending on the application */
static void check_initialization_complete (CustomData *data) {
@ -130,7 +155,7 @@ static void check_initialization_complete (CustomData *data) {
GST_DEBUG ("Initialization complete, notifying application. native_window:%p main_loop:%p", data->native_window, data->main_loop);
/* The main loop is running and we received a native window, inform the sink about it */
gst_x_overlay_set_window_handle (GST_X_OVERLAY (data->video_sink), (guintptr)data->native_window);
gst_x_overlay_set_window_handle (GST_X_OVERLAY (data->pipeline), (guintptr)data->native_window);
(*env)->CallVoidMethod (env, data->app, on_gstreamer_initialized_method_id);
if ((*env)->ExceptionCheck (env)) {
@ -147,7 +172,7 @@ static void *app_function (void *userdata) {
GstBus *bus;
CustomData *data = (CustomData *)userdata;
GSource *bus_source;
GError *error = NULL;
guint flags;
GST_DEBUG ("Creating pipeline in CustomData at %p", data);
@ -156,24 +181,19 @@ static void *app_function (void *userdata) {
g_main_context_push_thread_default(data->context);
/* Build pipeline */
data->pipeline = gst_parse_launch("videotestsrc ! warptv ! ffmpegcolorspace ! autovideosink", &error);
if (error) {
gchar *message = g_strdup_printf("Unable to build pipeline: %s", error->message);
g_clear_error (&error);
set_ui_message(message, data);
g_free (message);
data->pipeline = gst_element_factory_make ("playbin2", NULL);
if (!data->pipeline) {
set_ui_message("Unable to build pipeline", data);
return NULL;
}
g_object_get (data->pipeline, "flags", &flags, NULL);
/* Disable subtitles for now */
flags &= ~0x00000004;
g_object_set (data->pipeline, "flags", flags, NULL);
/* Set the pipeline to READY, so it can already accept a window handle, if we have one */
gst_element_set_state(data->pipeline, GST_STATE_READY);
data->video_sink = gst_bin_get_by_interface(GST_BIN(data->pipeline), GST_TYPE_X_OVERLAY);
if (!data->video_sink) {
GST_ERROR ("Could not retrieve video sink");
return NULL;
}
/* Instruct the bus to emit signals for each received message, and connect to the interesting signals */
bus = gst_element_get_bus (data->pipeline);
bus_source = gst_bus_create_watch (bus);
@ -197,7 +217,6 @@ static void *app_function (void *userdata) {
g_main_context_pop_thread_default(data->context);
g_main_context_unref (data->context);
gst_element_set_state (data->pipeline, GST_STATE_NULL);
gst_object_unref (data->video_sink);
gst_object_unref (data->pipeline);
return NULL;
@ -235,6 +254,16 @@ static void gst_native_finalize (JNIEnv* env, jobject thiz) {
GST_DEBUG ("Done finalizing");
}
void gst_native_set_uri (JNIEnv* env, jobject thiz, jstring uri) {
CustomData *data = GET_CUSTOM_DATA (env, thiz, custom_data_field_id);
if (!data || !data->pipeline) return;
const jbyte *char_uri = (*env)->GetStringUTFChars (env, uri, NULL);
GST_DEBUG ("Setting URI to %s", char_uri);
gst_element_set_state (data->pipeline, GST_STATE_READY);
g_object_set(data->pipeline, "uri", char_uri, NULL);
(*env)->ReleaseStringUTFChars (env, uri, char_uri);
}
/* Set pipeline to PLAYING state */
static void gst_native_play (JNIEnv* env, jobject thiz) {
CustomData *data = GET_CUSTOM_DATA (env, thiz, custom_data_field_id);
@ -256,8 +285,10 @@ static jboolean gst_native_class_init (JNIEnv* env, jclass klass) {
custom_data_field_id = (*env)->GetFieldID (env, klass, "native_custom_data", "J");
set_message_method_id = (*env)->GetMethodID (env, klass, "setMessage", "(Ljava/lang/String;)V");
on_gstreamer_initialized_method_id = (*env)->GetMethodID (env, klass, "onGStreamerInitialized", "()V");
on_media_size_changed_method_id = (*env)->GetMethodID (env, klass, "onMediaSizeChanged", "(II)V");
if (!custom_data_field_id || !set_message_method_id || !on_gstreamer_initialized_method_id) {
if (!custom_data_field_id || !set_message_method_id || !on_gstreamer_initialized_method_id ||
!on_media_size_changed_method_id) {
/* We emit this message through the Android log instead of the GStreamer log because the later
* has not been initialized yet.
*/
@ -277,9 +308,9 @@ static void gst_native_surface_init (JNIEnv *env, jobject thiz, jobject surface)
ANativeWindow_release (data->native_window);
if (data->native_window == new_native_window) {
GST_DEBUG ("New native window is the same as the previous one", data->native_window);
if (data->video_sink) {
gst_x_overlay_expose(GST_X_OVERLAY (data->video_sink));
gst_x_overlay_expose(GST_X_OVERLAY (data->video_sink));
if (data->pipeline) {
gst_x_overlay_expose(GST_X_OVERLAY (data->pipeline));
gst_x_overlay_expose(GST_X_OVERLAY (data->pipeline));
}
return;
} else {
@ -297,8 +328,8 @@ static void gst_native_surface_finalize (JNIEnv *env, jobject thiz) {
if (!data) return;
GST_DEBUG ("Releasing Native Window %p", data->native_window);
if (data->video_sink) {
gst_x_overlay_set_window_handle (GST_X_OVERLAY (data->video_sink), (guintptr)NULL);
if (data->pipeline) {
gst_x_overlay_set_window_handle (GST_X_OVERLAY (data->pipeline), (guintptr)NULL);
gst_element_set_state (data->pipeline, GST_STATE_READY);
}
@ -311,6 +342,7 @@ static void gst_native_surface_finalize (JNIEnv *env, jobject thiz) {
static JNINativeMethod native_methods[] = {
{ "nativeInit", "()V", (void *) gst_native_init},
{ "nativeFinalize", "()V", (void *) gst_native_finalize},
{ "nativeSetUri", "(Ljava/lang/String;)V", (void *) gst_native_set_uri},
{ "nativePlay", "()V", (void *) gst_native_play},
{ "nativePause", "()V", (void *) gst_native_pause},
{ "nativeSurfaceInit", "(Ljava/lang/Object;)V", (void *) gst_native_surface_init},

24
gst-sdk/tutorials/android-tutorial-4/res/layout/main.xml
View file

@ -2,16 +2,21 @@
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="vertical" >
<TextView
android:id="@+id/textview_message"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
android:layout_height="wrap_content"
android:layout_marginBottom="16dip"
android:gravity="center_horizontal" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="16dip"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<ImageButton
@ -29,14 +34,14 @@
android:contentDescription="@string/button_stop"
android:src="@android:drawable/ic_media_pause"
android:text="@string/button_stop" />
</LinearLayout>
<ImageButton
android:id="@+id/button_select"
android:layout_width="wrap_content"
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:contentDescription="@string/button_select"
android:src="@android:drawable/ic_media_next"
android:text="@string/button_select" />
android:layout_marginBottom="16dip"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<TextView
android:id="@+id/textview_time"
@ -55,9 +60,10 @@
android:indeterminate="false" />
</LinearLayout>
<SurfaceView
<com.gst_sdk_tutorials.tutorial_4.GStreamerSurfaceView
android:id="@+id/surface_video"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal" />
</LinearLayout>

14
gst-sdk/tutorials/android-tutorial-4/res/values/strings.xml
View file

@ -1,18 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Android tutorial 4</string>
<string name="app_name">GStreamer tutorial 4</string>
<string name="button_play">Play</string>
<string name="button_stop">Stop</string>
<string name="button_select">Select</string>
<string name="filechooser_name">Android tutorial 1</string>
<string name="location">Location</string>
<string name="cant_read_folder">folder can\'t be read!</string>
<string name="nnew">New</string>
<string name="select">Select</string>
<string name="file_name">File name:</string>
<string name="cancel">Cancel</string>
<string name="create">Save</string>
<string name="no_data">No Data</string>
<color name="gray">#ffff0000</color>
<string name="err">Error</string>
</resources>

16
gst-sdk/tutorials/android-tutorial-4/src/com/gst_sdk_tutorials/tutorial_4/Tutorial4.java
View file

@ -16,6 +16,7 @@ import com.gstreamer.GStreamer;
public class Tutorial4 extends Activity implements SurfaceHolder.Callback {
private native void nativeInit(); // Initialize native code, build pipeline, etc
private native void nativeFinalize(); // Destroy pipeline and shutdown native code
private native void nativeSetUri(String uri); // Set the URI of the media to play
private native void nativePlay(); // Set pipeline to PLAYING
private native void nativePause(); // Set pipeline to PAUSED
private static native boolean nativeClassInit(); // Initialize native class: cache Method IDs for callbacks
@ -25,6 +26,8 @@ public class Tutorial4 extends Activity implements SurfaceHolder.Callback {
private boolean is_playing_desired; // Whether the user asked to go to PLAYING
private String mediaUri = "http://docs.gstreamer.com/media/sintel_trailer-480p.ogv";
// Called when the activity is first created.
@Override
public void onCreate(Bundle savedInstanceState)
@ -102,6 +105,7 @@ public class Tutorial4 extends Activity implements SurfaceHolder.Callback {
private void onGStreamerInitialized () {
Log.i ("GStreamer", "Gst initialized. Restoring state, playing:" + is_playing_desired);
// Restore previous playing state
nativeSetUri (mediaUri);
if (is_playing_desired) {
nativePlay();
} else {
@ -140,4 +144,16 @@ public class Tutorial4 extends Activity implements SurfaceHolder.Callback {
nativeSurfaceFinalize ();
}
private void onMediaSizeChanged (int width, int height) {
Log.i ("GStreamer", "Media size changed to " + width + "x" + height);
final GStreamerSurfaceView gsv = (GStreamerSurfaceView) this.findViewById(R.id.surface_video);
gsv.media_width = width;
gsv.media_height = height;
runOnUiThread(new Runnable() {
public void run() {
gsv.requestLayout();
}
});
}
}