gstreamer/sys/androidmedia/gst-android-graphics-imageformat.c
2016-01-22 16:14:46 +02:00

193 lines
5 KiB
C

/*
* Copyright (C) 2012, Collabora Ltd.
* Copyright (C) 2012, Cisco Systems, Inc.
* Author: Youness Alaoui <youness.alaoui@collabora.co.uk>
*
* Copyright (C) 2015, Collabora Ltd.
* Author: Justin Kim <justin.kim@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 "gst-android-graphics-imageformat.h"
static struct
{
jclass klass;
jmethodID get_bits_per_pixel;
jint JPEG;
jint NV16;
jint NV21;
jint RGB_565;
jint UNKNOWN;
jint YUY2;
jint YV12;
} android_graphics_imageformat = {
0};
gint ImageFormat_JPEG;
gint ImageFormat_NV16;
gint ImageFormat_NV21;
gint ImageFormat_RGB_565;
gint ImageFormat_UNKNOWN;
gint ImageFormat_YUY2;
gint ImageFormat_YV12;
static gboolean
_init_classes (void)
{
JNIEnv *env;
jfieldID fieldID;
jclass klass;
GError *err = NULL;
env = gst_amc_jni_get_env ();
/* android.graphics.ImageFormat */
klass = android_graphics_imageformat.klass =
gst_amc_jni_get_class (env, &err, "android/graphics/ImageFormat");
if (err)
goto failed;
android_graphics_imageformat.get_bits_per_pixel =
gst_amc_jni_get_static_method_id (env, &err, klass,
"getBitsPerPixel", "(I)I");
if (err)
goto failed;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "JPEG", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.JPEG))
goto failed;
ImageFormat_JPEG = android_graphics_imageformat.JPEG;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "NV16", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.NV16))
goto failed;
ImageFormat_NV16 = android_graphics_imageformat.NV16;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "NV21", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.NV21))
goto failed;
ImageFormat_NV21 = android_graphics_imageformat.NV21;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "RGB_565", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.RGB_565))
goto failed;
ImageFormat_RGB_565 = android_graphics_imageformat.RGB_565;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "UNKNOWN", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.UNKNOWN))
goto failed;
ImageFormat_UNKNOWN = android_graphics_imageformat.UNKNOWN;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "YUY2", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.YUY2))
goto failed;
ImageFormat_YUY2 = android_graphics_imageformat.YUY2;
fieldID = gst_amc_jni_get_static_field_id (env, &err, klass, "YV12", "I");
if (err)
goto failed;
if (!gst_amc_jni_get_static_int_field (env, &err, klass, fieldID,
&android_graphics_imageformat.YV12))
goto failed;
ImageFormat_YV12 = android_graphics_imageformat.YV12;
return TRUE;
failed:
if (err) {
GST_ERROR ("Failed to get android.graphics.ImageFormat class: %s",
err->message);
g_clear_error (&err);
}
return FALSE;
}
gboolean
gst_android_graphics_imageformat_init (void)
{
if (!_init_classes ()) {
gst_android_graphics_imageformat_deinit ();
return FALSE;
}
return TRUE;
}
void
gst_android_graphics_imageformat_deinit (void)
{
JNIEnv *env = gst_amc_jni_get_env ();
if (android_graphics_imageformat.klass)
(*env)->DeleteGlobalRef (env, android_graphics_imageformat.klass);
android_graphics_imageformat.klass = NULL;
}
/* android.graphics.ImageFormat */
gint
gst_ag_imageformat_get_bits_per_pixel (gint format)
{
JNIEnv *env;
GError *err = NULL;
jclass klass = android_graphics_imageformat.klass;
jint bpp = 0;
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_static_int_method (env, &err,
klass, android_graphics_imageformat.get_bits_per_pixel, &bpp,
format)) {
GST_ERROR ("Failed to get android.graphics.ImageFormat class: %s",
err->message);
g_clear_error (&err);
}
return bpp;
}