4b05736c63
Adding DirecShow video capture filter mode, in addition to existing MediaFoundation and WinRT(UWP) mode, to support DirectShow only filters (not KS driver compatible) such as custom virtual camera filters. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3350>
134 lines
5.0 KiB
C
134 lines
5.0 KiB
C
/* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_MF_SOURCE_OBJECT_H__
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#define __GST_MF_SOURCE_OBJECT_H__
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#include <gst/gst.h>
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#include "gstmfutils.h"
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G_BEGIN_DECLS
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#define GST_TYPE_MF_SOURCE_OBJECT (gst_mf_source_object_get_type())
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#define GST_MF_SOURCE_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObject))
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#define GST_MF_SOURCE_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObjectClass))
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#define GST_IS_MF_SOURCE_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_MF_SOURCE_OBJECT))
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#define GST_IS_MF_SOURCE_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_MF_SOURCE_OBJECT))
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#define GST_MF_SOURCE_OBJECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_MF_SOURCE_OBJECT, GstMFSourceObjectClass))
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typedef struct _GstMFSourceObject GstMFSourceObject;
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typedef struct _GstMFSourceObjectClass GstMFSourceObjectClass;
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typedef enum
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{
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GST_MF_SOURCE_TYPE_VIDEO,
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} GstMFSourceType;
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#define GST_TYPE_MF_SOURCE_TYPE (gst_mf_source_type_get_type())
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GType gst_mf_source_type_get_type (void);
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struct _GstMFSourceObject
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{
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GstObject parent;
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gboolean opened;
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GstMFSourceType source_type;
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gchar *device_path;
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gchar *device_name;
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gint device_index;
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GWeakRef client;
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};
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struct _GstMFSourceObjectClass
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{
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GstObjectClass parent_class;
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gboolean (*start) (GstMFSourceObject * object);
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gboolean (*stop) (GstMFSourceObject * object);
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GstFlowReturn (*fill) (GstMFSourceObject * object,
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GstBuffer * buffer);
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GstFlowReturn (*create) (GstMFSourceObject * object,
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GstBuffer ** buffer);
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GstFlowReturn (*get_sample) (GstMFSourceObject * object,
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GstSample ** sample);
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gboolean (*unlock) (GstMFSourceObject * object);
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gboolean (*unlock_stop) (GstMFSourceObject * object);
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GstCaps * (*get_caps) (GstMFSourceObject * object);
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gboolean (*set_caps) (GstMFSourceObject * object,
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GstCaps * caps);
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};
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GType gst_mf_source_object_get_type (void);
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gboolean gst_mf_source_object_start (GstMFSourceObject * object);
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gboolean gst_mf_source_object_stop (GstMFSourceObject * object);
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/* Used for raw format */
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GstFlowReturn gst_mf_source_object_fill (GstMFSourceObject * object,
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GstBuffer * buffer);
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/* Used for compressed/raw format */
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GstFlowReturn gst_mf_source_object_create (GstMFSourceObject * object,
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GstBuffer ** buffer);
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/* DirectShow filter */
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GstFlowReturn gst_mf_source_object_get_sample (GstMFSourceObject * object,
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GstSample ** sample);
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void gst_mf_source_object_set_flushing (GstMFSourceObject * object,
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gboolean flushing);
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GstCaps * gst_mf_source_object_get_caps (GstMFSourceObject * object);
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gboolean gst_mf_source_object_set_caps (GstMFSourceObject * object,
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GstCaps * caps);
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gboolean gst_mf_source_object_set_client (GstMFSourceObject * object,
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GstElement * element);
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GstClockTime gst_mf_source_object_get_running_time (GstMFSourceObject * object);
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/* A factory method for subclass impl. selection */
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GstMFSourceObject * gst_mf_source_object_new (GstMFSourceType type,
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gint device_index,
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const gchar * device_name,
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const gchar * device_path,
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gpointer dispatcher);
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/* Utility methods */
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gint gst_mf_source_object_caps_compare (GstCaps * caps1,
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GstCaps * caps2);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstMFSourceObject, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_MF_SOURCE_OBJECT_H__ */ |