gstreamer/sys/androidmedia/gstamcsurfacetexture.c

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/*
* Copyright (C) 2013, Fluendo S.A.
* Author: Andoni Morales <amorales@fluendo.com>
*
* Copyright (C) 2014, 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 "gstamcsurfacetexture.h"
G_DEFINE_TYPE (GstAmcSurfaceTexture, gst_amc_surface_texture, G_TYPE_OBJECT);
static gpointer parent_class = NULL;
static void gst_amc_surface_texture_dispose (GObject * object);
static gboolean
_cache_java_class (GstAmcSurfaceTextureClass * 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/graphics/SurfaceTexture");
if (!klass->jklass) {
return FALSE;
}
klass->constructor =
gst_amc_jni_get_method_id (env, err, klass->jklass, "<init>", "(I)V");
if (!klass->constructor) {
goto error;
}
klass->set_on_frame_available_listener =
gst_amc_jni_get_method_id (env, err, klass->jklass,
"setOnFrameAvailableListener",
"(Landroid/graphics/SurfaceTexture$OnFrameAvailableListener;)V");
klass->set_default_buffer_size =
gst_amc_jni_get_method_id (env, err, klass->jklass,
"setDefaultBufferSize", "(II)V");
if (!klass->set_default_buffer_size) {
goto error;
}
klass->update_tex_image =
gst_amc_jni_get_method_id (env, err, klass->jklass, "updateTexImage",
"()V");
if (!klass->update_tex_image) {
goto error;
}
klass->detach_from_gl_context =
gst_amc_jni_get_method_id (env, err, klass->jklass, "detachFromGLContext",
"()V");
if (!klass->detach_from_gl_context) {
goto error;
}
klass->attach_to_gl_context =
gst_amc_jni_get_method_id (env, err, klass->jklass, "attachToGLContext",
"(I)V");
if (!klass->attach_to_gl_context) {
goto error;
}
klass->get_transform_matrix =
gst_amc_jni_get_method_id (env, err, klass->jklass, "getTransformMatrix",
"([F)V");
if (!klass->get_transform_matrix) {
goto error;
}
klass->get_timestamp =
gst_amc_jni_get_method_id (env, err, klass->jklass, "getTimestamp",
"()J");
if (!klass->get_timestamp) {
goto error;
}
klass->release =
gst_amc_jni_get_method_id (env, err, klass->jklass, "release", "()V");
if (!klass->release) {
goto error;
}
return TRUE;
error:
gst_amc_jni_object_unref (env, klass->constructor);
return FALSE;
}
static void
gst_amc_surface_texture_init (GstAmcSurfaceTexture * self)
{
}
static void
gst_amc_surface_texture_class_init (GstAmcSurfaceTextureClass * 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_texture_dispose;
if (!_cache_java_class (klass, &err)) {
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
"Could not cache java class android/graphics/SurfaceTexture: %s",
err->message);
g_clear_error (&err);
}
}
static void
gst_amc_surface_texture_dispose (GObject * object)
{
GstAmcSurfaceTexture *self;
JNIEnv *env;
GError *err = NULL;
self = GST_AMC_SURFACE_TEXTURE (object);
env = gst_amc_jni_get_env ();
if (!gst_amc_surface_texture_release (self, &err)) {
GST_ERROR ("Could not release surface texture: %s", err->message);
g_clear_error (&err);
}
if (self->jobject) {
gst_amc_jni_object_unref (env, self->jobject);
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
GstAmcSurfaceTexture *
gst_amc_surface_texture_new (GError ** err)
{
GstAmcSurfaceTexture *texture = NULL;
GstAmcSurfaceTextureClass *klass;
JNIEnv *env;
texture = g_object_new (GST_TYPE_AMC_SURFACE_TEXTURE, NULL);
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (texture);
env = gst_amc_jni_get_env ();
texture->texture_id = 0;
texture->jobject = gst_amc_jni_new_object (env, err, TRUE, klass->jklass,
klass->constructor, texture->texture_id);
if (texture->jobject == NULL) {
goto error;
}
if (!gst_amc_surface_texture_detach_from_gl_context (texture, err)) {
goto error;
}
return texture;
error:
if (texture)
g_object_unref (texture);
return NULL;
}
gboolean
gst_amc_surface_texture_set_default_buffer_size (GstAmcSurfaceTexture * self,
gint width, gint height, GError ** err)
{
JNIEnv *env;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
return gst_amc_jni_call_void_method (env, err, self->jobject,
klass->set_default_buffer_size, width, height);
}
gboolean
gst_amc_surface_texture_update_tex_image (GstAmcSurfaceTexture * self,
GError ** err)
{
JNIEnv *env;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
return gst_amc_jni_call_void_method (env, err, self->jobject,
klass->update_tex_image);
}
gboolean
gst_amc_surface_texture_detach_from_gl_context (GstAmcSurfaceTexture * self,
GError ** err)
{
JNIEnv *env;
gboolean ret;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
ret =
gst_amc_jni_call_void_method (env, err, self->jobject,
klass->detach_from_gl_context);
self->texture_id = 0;
return ret;
}
gboolean
gst_amc_surface_texture_attach_to_gl_context (GstAmcSurfaceTexture * self,
gint texture_id, GError ** err)
{
JNIEnv *env;
gboolean ret;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
ret =
gst_amc_jni_call_void_method (env, err, self->jobject,
klass->attach_to_gl_context, texture_id);
self->texture_id = texture_id;
return ret;
}
gboolean
gst_amc_surface_texture_get_transform_matrix (GstAmcSurfaceTexture * self,
const gfloat * matrix, GError ** err)
{
JNIEnv *env;
gboolean ret;
GstAmcSurfaceTextureClass *klass;
/* 4x4 Matrix */
jsize size = 16;
jfloatArray floatarray;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
floatarray = (*env)->NewFloatArray (env, size);
ret =
gst_amc_jni_call_void_method (env, err, self->jobject,
klass->get_transform_matrix, floatarray);
if (ret) {
(*env)->GetFloatArrayRegion (env, floatarray, 0, size, (jfloat *) matrix);
(*env)->DeleteLocalRef (env, floatarray);
}
return ret;
}
gboolean
gst_amc_surface_texture_get_timestamp (GstAmcSurfaceTexture * self,
gint64 * result, GError ** err)
{
JNIEnv *env;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
return gst_amc_jni_call_long_method (env, err, self->jobject,
klass->get_timestamp, result);
}
gboolean
gst_amc_surface_texture_release (GstAmcSurfaceTexture * self, GError ** err)
{
JNIEnv *env;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
return gst_amc_jni_call_void_method (env, err, self->jobject, klass->release);
}
gboolean
gst_amc_surface_texture_set_on_frame_available_listener (GstAmcSurfaceTexture *
self, jobject listener, GError ** err)
{
JNIEnv *env;
GstAmcSurfaceTextureClass *klass;
env = gst_amc_jni_get_env ();
klass = GST_AMC_SURFACE_TEXTURE_GET_CLASS (self);
return gst_amc_jni_call_void_method (env, err, self->jobject,
klass->set_on_frame_available_listener, listener);
}