gstreamer/sys/androidmedia/gstamcsurface.c

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/*
* Copyright (C) 2013, Fluendo S.A.
* Author: Andoni Morales <amorales@fluendo.com>
*
* Copyright (C) 2015, Collabora Ltd.
* Author: Matthieu Bouron <matthieu.bouron@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstjniutils.h"
#include "gstamcsurface.h"
G_DEFINE_TYPE (GstAmcSurface, gst_amc_surface, G_TYPE_OBJECT);
static gpointer parent_class = NULL;
static void gst_amc_surface_dispose (GObject * object);
static gboolean
_cache_java_class (GstAmcSurfaceClass * klass, GError ** err)
{
JNIEnv *env;
gst_amc_jni_initialize ();
env = gst_amc_jni_get_env ();
klass->jklass = gst_amc_jni_get_class (env, err, "android/view/Surface");
if (!klass->jklass) {
return FALSE;
}
klass->constructor =
gst_amc_jni_get_method_id (env, err, klass->jklass, "<init>",
"(Landroid/graphics/SurfaceTexture;)V");
if (!klass->constructor) {
goto error;
}
klass->is_valid =
gst_amc_jni_get_method_id (env, err, klass->jklass, "isValid", "()Z");
if (!klass->is_valid) {
goto error;
}
klass->release =
gst_amc_jni_get_method_id (env, err, klass->jklass, "release", "()V");
if (!klass->release) {
goto error;
}
klass->describe_contents =
gst_amc_jni_get_method_id (env, err, klass->jklass, "describeContents",
"()I");
if (!klass->describe_contents) {
goto error;
}
return TRUE;
error:
gst_amc_jni_object_unref (env, klass->jklass);
return FALSE;
}
static void
gst_amc_surface_class_init (GstAmcSurfaceClass * klass)
{
GError *err = NULL;
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
gobject_class->dispose = gst_amc_surface_dispose;
if (!_cache_java_class (klass, &err)) {
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
"Could not cache java class android/view/Surface: %s", err->message);
g_clear_error (&err);
}
}
static void
gst_amc_surface_init (GstAmcSurface * self)
{
/* initialize the object */
}
static void
gst_amc_surface_dispose (GObject * object)
{
GstAmcSurface *self;
JNIEnv *env;
GError *err = NULL;
self = GST_AMC_SURFACE (object);
env = gst_amc_jni_get_env ();
if (!gst_amc_surface_release (self, &err)) {
if (err) {
GST_ERROR ("Error: %s", err->message);
}
}
if (self->jobject) {
gst_amc_jni_object_unref (env, self->jobject);
}
if (self->texture != NULL) {
g_object_unref (self->texture);
self->texture = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
GstAmcSurface *
gst_amc_surface_new (GstAmcSurfaceTexture * texture, GError ** err)
{
GstAmcSurface *surface;
GstAmcSurfaceClass *klass;
JNIEnv *env;
surface = g_object_new (GST_TYPE_AMC_SURFACE, NULL);
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_GET_CLASS (surface);
surface->jobject = gst_amc_jni_new_object (env, err, TRUE, klass->jklass,
klass->constructor, texture->jobject);
if (surface->jobject == NULL) {
g_object_unref (surface);
return NULL;
}
surface->texture = g_object_ref (texture);
return surface;
}
gboolean
gst_amc_surface_is_valid (GstAmcSurface * self, gboolean * result,
GError ** err)
{
JNIEnv *env;
GstAmcSurfaceClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_GET_CLASS (self);
return gst_amc_jni_call_boolean_method (env, err, self->jobject,
klass->is_valid, result);
}
gboolean
gst_amc_surface_release (GstAmcSurface * self, GError ** err)
{
JNIEnv *env;
GstAmcSurfaceClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_GET_CLASS (self);
return gst_amc_jni_call_void_method (env, err, self->jobject, klass->release);
}
gboolean
gst_amc_surface_describe_contents (GstAmcSurface * self, gint * result,
GError ** err)
{
JNIEnv *env;
GstAmcSurfaceClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_GET_CLASS (self);
return gst_amc_jni_call_int_method (env, err, self->jobject,
klass->describe_contents, result);
}