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a31855d618
gst_ks_device_provider_probe() is a no-braier, just runs ks_enumerate_devices() and reports the results. Monitoring is a bit more tricky. We have to create a dummy message-processing window and register device change notifications for it. As kernel streaming can (and should) be used for audio capture and audio playback, this change also has certain placeholders for such. https://bugzilla.gnome.org/show_bug.cgi?id=747757
102 lines
3.8 KiB
C
102 lines
3.8 KiB
C
/* GStreamer
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* Copyright (C) 2015 Руслан Ижбулатов <lrn1986@gmail.com>
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*
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* ksdeviceprovider.h: Kernel Streaming device probing and monitoring
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_KS_DEVICE_PROVIDER_H__
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#define __GST_KS_DEVICE_PROVIDER_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <windows.h>
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G_BEGIN_DECLS
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typedef struct _GstKsDeviceProvider GstKsDeviceProvider;
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typedef struct _GstKsDeviceProviderPrivate GstKsDeviceProviderPrivate;
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typedef struct _GstKsDeviceProviderClass GstKsDeviceProviderClass;
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#define GST_TYPE_KS_DEVICE_PROVIDER (gst_ks_device_provider_get_type())
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#define GST_IS_KS_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_KS_DEVICE_PROVIDER))
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#define GST_IS_KS_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_KS_DEVICE_PROVIDER))
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#define GST_KS_DEVICE_PROVIDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_KS_DEVICE_PROVIDER, GstKsDeviceProviderClass))
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#define GST_KS_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_KS_DEVICE_PROVIDER, GstKsDeviceProvider))
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#define GST_KS_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE_PROVIDER, GstKsDeviceProviderClass))
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#define GST_KS_DEVICE_PROVIDER_CAST(obj) ((GstKsDeviceProvider *)(obj))
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struct _GstKsDeviceProvider {
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GstDeviceProvider parent;
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HANDLE message_window;
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ATOM message_window_class;
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HDEVNOTIFY device_notify_handle;
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HANDLE wakeup_event;
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GThread *message_thread;
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};
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typedef enum {
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GST_KS_DEVICE_TYPE_INVALID = 0,
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GST_KS_DEVICE_TYPE_VIDEO_SOURCE,
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GST_KS_DEVICE_TYPE_VIDEO_SINK,
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GST_KS_DEVICE_TYPE_AUDIO_SOURCE,
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GST_KS_DEVICE_TYPE_AUDIO_SINK
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} GstKsDeviceType;
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struct _GstKsDeviceProviderClass {
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GstDeviceProviderClass parent_class;
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};
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GType gst_ks_device_provider_get_type (void);
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typedef struct _GstKsDevice GstKsDevice;
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typedef struct _GstKsDevicePrivate GstKsDevicePrivate;
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typedef struct _GstKsDeviceClass GstKsDeviceClass;
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#define GST_TYPE_KS_DEVICE (gst_ks_device_get_type())
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#define GST_IS_KS_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_KS_DEVICE))
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#define GST_IS_KS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_KS_DEVICE))
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#define GST_KS_DEVICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_KS_DEVICE, GstKsDeviceClass))
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#define GST_KS_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_KS_DEVICE, GstKsDevice))
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#define GST_KS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstKsDeviceClass))
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#define GST_KS_DEVICE_CAST(obj) ((GstKsDevice *)(obj))
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struct _GstKsDevice {
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GstDevice parent;
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GstKsDeviceType type;
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guint device_index;
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gchar *path;
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const gchar *element;
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};
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struct _GstKsDeviceClass {
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GstDeviceClass parent_class;
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};
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GType gst_ks_device_get_type (void);
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G_END_DECLS
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#endif /* __GST_KS_DEVICE_PROVIDER_H__ */
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