gstreamer/subprojects/gst-plugins-bad/sys/androidmedia/jni/gstamc-format-jni.c

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/*
* Copyright (C) 2012,2018 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.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 "../gstamc-format.h"
#include "gstamc-jni.h"
#include "gstamc-internal-jni.h"
static struct
{
jclass klass;
jmethodID create_audio_format;
jmethodID create_video_format;
jmethodID to_string;
jmethodID get_float;
jmethodID set_float;
jmethodID get_integer;
jmethodID set_integer;
jmethodID get_string;
jmethodID set_string;
jmethodID get_byte_buffer;
jmethodID set_byte_buffer;
} media_format;
gboolean
gst_amc_format_jni_static_init (void)
{
gboolean ret = TRUE;
JNIEnv *env;
jclass tmp;
env = gst_amc_jni_get_env ();
tmp = (*env)->FindClass (env, "android/media/MediaFormat");
if (!tmp) {
ret = FALSE;
GST_ERROR ("Failed to get format class");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
media_format.klass = (*env)->NewGlobalRef (env, tmp);
if (!media_format.klass) {
ret = FALSE;
GST_ERROR ("Failed to get format class global reference");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
(*env)->DeleteLocalRef (env, tmp);
tmp = NULL;
media_format.create_audio_format =
(*env)->GetStaticMethodID (env, media_format.klass, "createAudioFormat",
"(Ljava/lang/String;II)Landroid/media/MediaFormat;");
media_format.create_video_format =
(*env)->GetStaticMethodID (env, media_format.klass, "createVideoFormat",
"(Ljava/lang/String;II)Landroid/media/MediaFormat;");
media_format.to_string =
(*env)->GetMethodID (env, media_format.klass, "toString",
"()Ljava/lang/String;");
media_format.get_float =
(*env)->GetMethodID (env, media_format.klass, "getFloat",
"(Ljava/lang/String;)F");
media_format.set_float =
(*env)->GetMethodID (env, media_format.klass, "setFloat",
"(Ljava/lang/String;F)V");
media_format.get_integer =
(*env)->GetMethodID (env, media_format.klass, "getInteger",
"(Ljava/lang/String;)I");
media_format.set_integer =
(*env)->GetMethodID (env, media_format.klass, "setInteger",
"(Ljava/lang/String;I)V");
media_format.get_string =
(*env)->GetMethodID (env, media_format.klass, "getString",
"(Ljava/lang/String;)Ljava/lang/String;");
media_format.set_string =
(*env)->GetMethodID (env, media_format.klass, "setString",
"(Ljava/lang/String;Ljava/lang/String;)V");
media_format.get_byte_buffer =
(*env)->GetMethodID (env, media_format.klass, "getByteBuffer",
"(Ljava/lang/String;)Ljava/nio/ByteBuffer;");
media_format.set_byte_buffer =
(*env)->GetMethodID (env, media_format.klass, "setByteBuffer",
"(Ljava/lang/String;Ljava/nio/ByteBuffer;)V");
if (!media_format.create_audio_format || !media_format.create_video_format
|| !media_format.get_float || !media_format.set_float
|| !media_format.get_integer || !media_format.set_integer
|| !media_format.get_string || !media_format.set_string
|| !media_format.get_byte_buffer || !media_format.set_byte_buffer) {
ret = FALSE;
GST_ERROR ("Failed to get format methods");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
done:
if (tmp)
(*env)->DeleteLocalRef (env, tmp);
tmp = NULL;
return ret;
}
static GstAmcFormat *
gst_amc_format_jni_new_audio (const gchar * mime, gint sample_rate,
gint channels, GError ** err)
{
JNIEnv *env;
GstAmcFormat *format = NULL;
jstring mime_str;
g_return_val_if_fail (mime != NULL, NULL);
env = gst_amc_jni_get_env ();
mime_str = gst_amc_jni_string_from_gchar (env, err, FALSE, mime);
if (!mime_str)
goto error;
format = g_slice_new0 (GstAmcFormat);
format->object =
gst_amc_jni_new_object_from_static (env, err, TRUE, media_format.klass,
media_format.create_audio_format, mime_str, sample_rate, channels);
if (!format->object)
goto error;
done:
if (mime_str)
gst_amc_jni_object_local_unref (env, mime_str);
mime_str = NULL;
return format;
error:
if (format)
g_slice_free (GstAmcFormat, format);
format = NULL;
goto done;
}
static GstAmcFormat *
gst_amc_format_jni_new_video (const gchar * mime, gint width, gint height,
GError ** err)
{
JNIEnv *env;
GstAmcFormat *format = NULL;
jstring mime_str;
g_return_val_if_fail (mime != NULL, NULL);
env = gst_amc_jni_get_env ();
mime_str = gst_amc_jni_string_from_gchar (env, err, FALSE, mime);
if (!mime_str)
goto error;
format = g_slice_new0 (GstAmcFormat);
format->object =
gst_amc_jni_new_object_from_static (env, err, TRUE, media_format.klass,
media_format.create_video_format, mime_str, width, height);
if (!format->object)
goto error;
done:
if (mime_str)
gst_amc_jni_object_local_unref (env, mime_str);
mime_str = NULL;
return format;
error:
if (format)
g_slice_free (GstAmcFormat, format);
format = NULL;
goto done;
}
static void
gst_amc_format_jni_free (GstAmcFormat * format)
{
JNIEnv *env;
g_return_if_fail (format != NULL);
env = gst_amc_jni_get_env ();
gst_amc_jni_object_unref (env, format->object);
g_slice_free (GstAmcFormat, format);
}
static gchar *
gst_amc_format_jni_to_string (GstAmcFormat * format, GError ** err)
{
JNIEnv *env;
jstring v_str = NULL;
gchar *ret = NULL;
g_return_val_if_fail (format != NULL, FALSE);
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_object_method (env, err, format->object,
media_format.to_string, &v_str))
goto done;
ret = gst_amc_jni_string_to_gchar (env, v_str, TRUE);
done:
return ret;
}
static gboolean
gst_amc_format_jni_get_float (GstAmcFormat * format, const gchar * key,
gfloat * value, GError ** err)
{
JNIEnv *env;
gboolean ret = FALSE;
jstring key_str = NULL;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
*value = 0;
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_float_method (env, err, format->object,
media_format.get_float, value, key_str))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
return ret;
}
static gboolean
gst_amc_format_jni_set_float (GstAmcFormat * format, const gchar * key,
gfloat value, GError ** err)
{
JNIEnv *env;
jstring key_str = NULL;
gboolean ret = FALSE;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_void_method (env, err, format->object,
media_format.set_float, key_str, value))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
return ret;
}
static gboolean
gst_amc_format_jni_get_int (GstAmcFormat * format, const gchar * key,
gint * value, GError ** err)
{
JNIEnv *env;
gboolean ret = FALSE;
jstring key_str = NULL;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
*value = 0;
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_int_method (env, err, format->object,
media_format.get_integer, value, key_str))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
return ret;
}
static gboolean
gst_amc_format_jni_set_int (GstAmcFormat * format, const gchar * key,
gint value, GError ** err)
{
JNIEnv *env;
jstring key_str = NULL;
gboolean ret = FALSE;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_void_method (env, err, format->object,
media_format.set_integer, key_str, value))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
return ret;
}
static gboolean
gst_amc_format_jni_get_string (GstAmcFormat * format, const gchar * key,
gchar ** value, GError ** err)
{
JNIEnv *env;
gboolean ret = FALSE;
jstring key_str = NULL;
jstring v_str = NULL;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
*value = 0;
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_object_method (env, err, format->object,
media_format.get_string, &v_str, key_str))
goto done;
*value = gst_amc_jni_string_to_gchar (env, v_str, TRUE);
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
return ret;
}
static gboolean
gst_amc_format_jni_set_string (GstAmcFormat * format, const gchar * key,
const gchar * value, GError ** err)
{
JNIEnv *env;
jstring key_str = NULL;
jstring v_str = NULL;
gboolean ret = FALSE;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
v_str = gst_amc_jni_string_from_gchar (env, err, FALSE, value);
if (!v_str)
goto done;
if (!gst_amc_jni_call_void_method (env, err, format->object,
media_format.set_string, key_str, v_str))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
if (v_str)
gst_amc_jni_object_local_unref (env, v_str);
return ret;
}
static gboolean
gst_amc_format_jni_get_buffer (GstAmcFormat * format, const gchar * key,
guint8 ** data, gsize * size, GError ** err)
{
JNIEnv *env;
gboolean ret = FALSE;
jstring key_str = NULL;
jobject v = NULL;
RealBuffer buf = { 0, };
gint position = 0, limit = 0;
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (size != NULL, FALSE);
*data = NULL;
*size = 0;
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
if (!gst_amc_jni_call_object_method (env, err, format->object,
media_format.get_byte_buffer, &v, key_str))
goto done;
*data = (*env)->GetDirectBufferAddress (env, v);
if (*data == NULL) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed get buffer address");
goto done;
}
*size = (*env)->GetDirectBufferCapacity (env, v);
buf.object = v;
buf.data = *data;
buf.size = *size;
gst_amc_buffer_get_position_and_limit (&buf, NULL, &position, &limit);
*size = limit;
*data = g_memdup2 (*data + position, limit);
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
if (v)
gst_amc_jni_object_local_unref (env, v);
return ret;
}
static gboolean
gst_amc_format_jni_set_buffer (GstAmcFormat * format, const gchar * key,
guint8 * data, gsize size, GError ** err)
{
JNIEnv *env;
jstring key_str = NULL;
jobject v = NULL;
gboolean ret = FALSE;
RealBuffer buf = { 0, };
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (key != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
env = gst_amc_jni_get_env ();
key_str = gst_amc_jni_string_from_gchar (env, err, FALSE, key);
if (!key_str)
goto done;
/* FIXME: The memory must remain valid until the codec is stopped */
v = (*env)->NewDirectByteBuffer (env, data, size);
if (!v) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed create Java byte buffer");
goto done;
}
buf.object = v;
buf.data = data;
buf.size = size;
gst_amc_buffer_set_position_and_limit ((GstAmcBuffer *) & buf, NULL, 0, size);
if (!gst_amc_jni_call_void_method (env, err, format->object,
media_format.set_byte_buffer, key_str, v))
goto done;
ret = TRUE;
done:
if (key_str)
gst_amc_jni_object_local_unref (env, key_str);
if (v)
gst_amc_jni_object_local_unref (env, v);
return ret;
}
GstAmcFormatVTable gst_amc_format_jni_vtable = {
.new_audio = gst_amc_format_jni_new_audio,
.new_video = gst_amc_format_jni_new_video,
.free = gst_amc_format_jni_free,
.to_string = gst_amc_format_jni_to_string,
.get_float = gst_amc_format_jni_get_float,
.set_float = gst_amc_format_jni_set_float,
.get_int = gst_amc_format_jni_get_int,
.set_int = gst_amc_format_jni_set_int,
.get_string = gst_amc_format_jni_get_string,
.set_string = gst_amc_format_jni_set_string,
.get_buffer = gst_amc_format_jni_get_buffer,
.set_buffer = gst_amc_format_jni_set_buffer,
};