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Add some more JNI wrapping

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This commit is contained in:
Sebastian Dröge 2012-08-20 13:45:20 +02:00
parent a6a34c8f1c
commit c846605082
2 changed files with 123 additions and 10 deletions
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127
sys/androidmedia/gstamc.c
View file

@ -1,6 +1,6 @@
/*
* Copyright (C) 2012, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -33,6 +33,9 @@
GST_DEBUG_CATEGORY (gst_amc_debug);
#define GST_CAT_DEFAULT gst_amc_debug
GQuark gst_amc_codec_info_quark = 0;
static GList *codec_infos = NULL;
static GModule *java_module;
static jint (*get_created_java_vms) (JavaVM ** vmBuf, jsize bufLen,
jsize * nVMs);
@ -83,6 +86,8 @@ static struct
jmethodID set_integer;
jmethodID get_string;
jmethodID set_string;
jmethodID get_byte_buffer;
jmethodID set_byte_buffer;
} media_format;
static JNIEnv *
@ -605,7 +610,7 @@ gst_amc_codec_dequeue_input_buffer (GstAmcCodec * codec, gint64 timeoutUs)
JNIEnv *env;
gint ret = G_MININT;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (codec != NULL, G_MININT);
env = gst_amc_attach_current_thread ();
@ -675,7 +680,7 @@ gst_amc_codec_dequeue_output_buffer (GstAmcCodec * codec,
gint ret = G_MININT;
jobject info_o = NULL;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (codec != NULL, G_MININT);
env = gst_amc_attach_current_thread ();
@ -1129,6 +1134,97 @@ done:
gst_amc_detach_current_thread ();
}
gboolean
gst_amc_format_get_buffer (GstAmcFormat * format, const gchar * key,
GstBuffer ** value)
{
JNIEnv *env;
gboolean ret = FALSE;
jstring key_str = NULL;
jobject v = NULL;
guint8 *data;
gsize size;
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_attach_current_thread ();
key_str = gst_amc_jstring_new (env, key, strlen (key));
if (!key_str)
goto done;
v = (*env)->CallObjectMethod (env, format->object,
media_format.get_byte_buffer);
if ((*env)->ExceptionCheck (env)) {
GST_ERROR ("Failed to call Java method");
(*env)->ExceptionClear (env);
goto done;
}
data = (*env)->GetDirectBufferAddress (env, v);
if (!data) {
(*env)->ExceptionClear (env);
GST_ERROR ("Failed to get buffer address");
goto done;
}
size = (*env)->GetDirectBufferCapacity (env, v);
*value = gst_buffer_new_and_alloc (size);
memcpy (GST_BUFFER_DATA (*value), data, size);
ret = TRUE;
done:
if (key_str)
(*env)->DeleteLocalRef (env, key_str);
if (v)
(*env)->DeleteLocalRef (env, v);
gst_amc_detach_current_thread ();
return ret;
}
void
gst_amc_format_set_buffer (GstAmcFormat * format, const gchar * key,
GstBuffer * value)
{
JNIEnv *env;
jstring key_str = NULL;
jobject v = NULL;
g_return_if_fail (format != NULL);
g_return_if_fail (key != NULL);
g_return_if_fail (value != NULL);
env = gst_amc_attach_current_thread ();
key_str = gst_amc_jstring_new (env, key, strlen (key));
if (!key_str)
goto done;
/* FIXME: The buffer must remain valid until the codec is stopped */
v = (*env)->NewDirectByteBuffer (env, GST_BUFFER_DATA (value),
GST_BUFFER_SIZE (value));
if (!v)
goto done;
(*env)->CallVoidMethod (env, format->object, media_format.set_byte_buffer, v);
if ((*env)->ExceptionCheck (env)) {
GST_ERROR ("Failed to call Java method");
(*env)->ExceptionClear (env);
goto done;
}
done:
if (key_str)
(*env)->DeleteLocalRef (env, key_str);
if (v)
(*env)->DeleteLocalRef (env, v);
gst_amc_detach_current_thread ();
}
static gboolean
get_java_classes (void)
{
@ -1317,11 +1413,18 @@ get_java_classes (void)
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.contains_key || !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.set_string || !media_format.get_byte_buffer
|| !media_format.set_byte_buffer) {
ret = FALSE;
(*env)->ExceptionClear (env);
GST_ERROR ("Failed to get format methods");
@ -1337,10 +1440,8 @@ done:
return ret;
}
static GList *codec_infos = NULL;
static gboolean
register_codecs (void)
scan_codecs (void)
{
gboolean ret = TRUE;
JNIEnv *env;
@ -1761,7 +1862,10 @@ static const struct
GstVideoFormat video_format;
} color_format_mapping_table[] = {
{
COLOR_FormatYUV420Planar, GST_VIDEO_FORMAT_I420}
COLOR_FormatYUV420Planar, GST_VIDEO_FORMAT_I420}, {
COLOR_FormatYUV420SemiPlanar, GST_VIDEO_FORMAT_NV12}, {
COLOR_TI_FormatYUV420PackedSemiPlanar, GST_VIDEO_FORMAT_NV12}, {
COLOR_QCOM_FormatYUV420SemiPlanar, GST_VIDEO_FORMAT_NV12}
};
GstVideoFormat
@ -2112,7 +2216,12 @@ plugin_init (GstPlugin * plugin)
if (!initialize_java_vm ())
return FALSE;
if (!get_java_classes () || !register_codecs ())
gst_plugin_add_dependency_simple (plugin, NULL, "/etc", "media_codecs.xml",
GST_PLUGIN_DEPENDENCY_FLAG_NONE);
gst_amc_codec_info_quark = g_quark_from_static_string ("gst-amc-codec-info");
if (!get_java_classes () || !scan_codecs ())
return FALSE;
return TRUE;

6
sys/androidmedia/gstamc.h
View file

@ -1,6 +1,6 @@
/*
* Copyright (C) 2012, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -77,6 +77,8 @@ struct _GstAmcBufferInfo {
gint size;
};
extern GQuark gst_amc_codec_info_quark;
GstAmcCodec * gst_amc_codec_new (const gchar *name);
void gst_amc_codec_free (GstAmcCodec * codec);
@ -111,6 +113,8 @@ gboolean gst_amc_format_get_int (GstAmcFormat *format, const gchar *key, gint *v
void gst_amc_format_set_int (GstAmcFormat *format, const gchar *key, gint value);
gboolean gst_amc_format_get_string (GstAmcFormat *format, const gchar *key, gchar **value);
void gst_amc_format_set_string (GstAmcFormat *format, const gchar *key, const gchar *value);
gboolean gst_amc_format_get_buffer (GstAmcFormat *format, const gchar *key, GstBuffer **value);
void gst_amc_format_set_buffer (GstAmcFormat *format, const gchar *key, GstBuffer *value);
GstVideoFormat gst_amc_color_format_to_video_format (gint color_format);
gint gst_amc_video_format_to_color_format (GstVideoFormat video_format);