gstreamer/subprojects/gst-plugins-bad/sys/mediafoundation/gstmfsourceobject.h

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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* 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_MF_SOURCE_OBJECT_H__
#define __GST_MF_SOURCE_OBJECT_H__
#include <gst/gst.h>
#include "gstmfutils.h"
G_BEGIN_DECLS
#define GST_TYPE_MF_SOURCE_OBJECT (gst_mf_source_object_get_type())
#define GST_MF_SOURCE_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObject))
#define GST_MF_SOURCE_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObjectClass))
#define GST_IS_MF_SOURCE_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_MF_SOURCE_OBJECT))
#define GST_IS_MF_SOURCE_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_MF_SOURCE_OBJECT))
#define GST_MF_SOURCE_OBJECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObjectClass))
typedef struct _GstMFSourceObject GstMFSourceObject;
typedef struct _GstMFSourceObjectClass GstMFSourceObjectClass;
typedef enum
{
GST_MF_SOURCE_TYPE_VIDEO,
} GstMFSourceType;
#define GST_TYPE_MF_SOURCE_TYPE (gst_mf_source_type_get_type())
GType gst_mf_source_type_get_type (void);
struct _GstMFSourceObject
{
GstObject parent;
gboolean opened;
GstMFSourceType source_type;
gchar *device_path;
gchar *device_name;
gint device_index;
GWeakRef client;
};
struct _GstMFSourceObjectClass
{
GstObjectClass parent_class;
gboolean (*start) (GstMFSourceObject * object);
gboolean (*stop) (GstMFSourceObject * object);
GstFlowReturn (*fill) (GstMFSourceObject * object,
GstBuffer * buffer);
GstFlowReturn (*create) (GstMFSourceObject * object,
GstBuffer ** buffer);
GstFlowReturn (*get_sample) (GstMFSourceObject * object,
GstSample ** sample);
gboolean (*unlock) (GstMFSourceObject * object);
gboolean (*unlock_stop) (GstMFSourceObject * object);
GstCaps * (*get_caps) (GstMFSourceObject * object);
gboolean (*set_caps) (GstMFSourceObject * object,
GstCaps * caps);
};
GType gst_mf_source_object_get_type (void);
gboolean gst_mf_source_object_start (GstMFSourceObject * object);
gboolean gst_mf_source_object_stop (GstMFSourceObject * object);
/* Used for raw format */
GstFlowReturn gst_mf_source_object_fill (GstMFSourceObject * object,
GstBuffer * buffer);
/* Used for compressed/raw format */
GstFlowReturn gst_mf_source_object_create (GstMFSourceObject * object,
GstBuffer ** buffer);
/* DirectShow filter */
GstFlowReturn gst_mf_source_object_get_sample (GstMFSourceObject * object,
GstSample ** sample);
void gst_mf_source_object_set_flushing (GstMFSourceObject * object,
gboolean flushing);
GstCaps * gst_mf_source_object_get_caps (GstMFSourceObject * object);
gboolean gst_mf_source_object_set_caps (GstMFSourceObject * object,
GstCaps * caps);
gboolean gst_mf_source_object_set_client (GstMFSourceObject * object,
GstElement * element);
GstClockTime gst_mf_source_object_get_running_time (GstMFSourceObject * object);
/* A factory method for subclass impl. selection */
GstMFSourceObject * gst_mf_source_object_new (GstMFSourceType type,
gint device_index,
const gchar * device_name,
const gchar * device_path,
gpointer dispatcher);
/* Utility methods */
gint gst_mf_source_object_caps_compare (GstCaps * caps1,
GstCaps * caps2);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstMFSourceObject, gst_object_unref)
G_END_DECLS
#endif /* __GST_MF_SOURCE_OBJECT_H__ */