mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-19 23:06:49 +00:00
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/* GStreamer
|
|
* Copyright (C) 2016 Thibault Saunier <thibault.saunier@collabora.com>
|
|
* 2016 Stefan Sauer <ensonic@users.sf.net>
|
|
*
|
|
* gstlv2utils.h: Header for LV2 plugin utils
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __GST_LV2_UTILS_H__
|
|
#define __GST_LV2_UTILS_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/audio.h>
|
|
#include <gst/audio/audio-channels.h>
|
|
|
|
#include <lilv/lilv.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _GstLV2Group GstLV2Group;
|
|
typedef struct _GstLV2Port GstLV2Port;
|
|
|
|
typedef struct _GstLV2 GstLV2;
|
|
typedef struct _GstLV2Class GstLV2Class;
|
|
|
|
struct _GstLV2Group
|
|
{
|
|
gchar *uri; /**< RDF resource (URI or blank node) */
|
|
guint pad; /**< Gst pad index */
|
|
gchar *symbol; /**< Gst pad name / LV2 group symbol */
|
|
GArray *ports; /**< Array of GstLV2Port */
|
|
gboolean has_roles; /**< TRUE iff all ports have a known role */
|
|
};
|
|
|
|
struct _GstLV2Port
|
|
{
|
|
gint index; /**< LV2 port index (on LV2 plugin) */
|
|
gint pad; /**< Gst pad index (iff not part of a group) */
|
|
LilvNode *role; /**< Channel position / port role */
|
|
GstAudioChannelPosition position; /**< Channel position */
|
|
};
|
|
|
|
struct _GstLV2
|
|
{
|
|
GstLV2Class *klass;
|
|
|
|
LilvInstance *instance;
|
|
|
|
gboolean activated;
|
|
unsigned long rate;
|
|
|
|
struct
|
|
{
|
|
struct
|
|
{
|
|
gfloat *in;
|
|
gfloat *out;
|
|
} control;
|
|
} ports;
|
|
};
|
|
|
|
struct _GstLV2Class
|
|
{
|
|
guint properties;
|
|
|
|
const LilvPlugin *plugin;
|
|
|
|
GstLV2Group in_group; /**< Array of GstLV2Group */
|
|
GstLV2Group out_group; /**< Array of GstLV2Group */
|
|
GArray *control_in_ports; /**< Array of GstLV2Port */
|
|
GArray *control_out_ports; /**< Array of GstLV2Port */
|
|
};
|
|
|
|
gboolean gst_lv2_check_required_features (const LilvPlugin *lv2plugin);
|
|
|
|
void gst_lv2_init (GstLV2 * lv2, GstLV2Class * lv2_class);
|
|
void gst_lv2_finalize (GstLV2 * lv2);
|
|
|
|
gboolean gst_lv2_setup (GstLV2 * lv2, unsigned long rate);
|
|
gboolean gst_lv2_cleanup (GstLV2 * lv2, GstObject *obj);
|
|
|
|
void gst_lv2_object_set_property (GstLV2 * lv2, GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
|
void gst_lv2_object_get_property (GstLV2 * lv2, GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
|
|
void gst_lv2_class_install_properties (GstLV2Class * lv2_class,
|
|
GObjectClass * object_class, guint offset);
|
|
void gst_lv2_element_class_set_metadata (GstLV2Class * lv2_class,
|
|
GstElementClass * elem_class, const gchar * lv2_class_tags);
|
|
|
|
void gst_lv2_class_init (GstLV2Class * lv2_class, GType type);
|
|
void gst_lv2_class_finalize (GstLV2Class * lv2_class);
|
|
|
|
void gst_lv2_register_element (GstPlugin * plugin, GType parent_type,
|
|
const GTypeInfo * info, GstStructure * lv2_meta);
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_LV2_UTILS_H__ */
|