1 /* GStreamer 2 * Copyright (C) 2012 Olivier Crete <olivier.crete@collabora.com> 3 * 4 * gstv4l2deviceprovider.h: V4l2 device probing and monitoring 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 19 * Boston, MA 02111-1307, USA. 20 */ 21 22 23 #ifndef __GST_V4L2_DEVICE_PROVIDER_H__ 24 #define __GST_V4L2_DEVICE_PROVIDER_H__ 25 26 #ifdef HAVE_CONFIG_H 27 #include "config.h" 28 #endif 29 30 #include <gst/gst.h> 31 32 #ifdef HAVE_GUDEV 33 #include <gudev/gudev.h> 34 #endif 35 36 G_BEGIN_DECLS 37 38 typedef struct _GstV4l2DeviceProvider GstV4l2DeviceProvider; 39 typedef struct _GstV4l2DeviceProviderClass GstV4l2DeviceProviderClass; 40 41 #define GST_TYPE_V4L2_DEVICE_PROVIDER (gst_v4l2_device_provider_get_type()) 42 #define GST_IS_V4L2_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_DEVICE_PROVIDER)) 43 #define GST_IS_V4L2_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_DEVICE_PROVIDER)) 44 #define GST_V4L2_DEVICE_PROVIDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_V4L2_DEVICE_PROVIDER, GstV4l2DeviceProviderClass)) 45 #define GST_V4L2_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_DEVICE_PROVIDER, GstV4l2DeviceProvider)) 46 #define GST_V4L2_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE_PROVIDER, GstV4l2DeviceProviderClass)) 47 #define GST_V4L2_DEVICE_PROVIDER_CAST(obj) ((GstV4l2DeviceProvider *)(obj)) 48 49 struct _GstV4l2DeviceProvider { 50 GstDeviceProvider parent; 51 52 #ifdef HAVE_GUDEV 53 GMainContext *context; 54 GMainLoop *loop; 55 GThread *thread; 56 gboolean started; 57 GCond started_cond; 58 #endif 59 }; 60 61 typedef enum { 62 GST_V4L2_DEVICE_TYPE_INVALID = 0, 63 GST_V4L2_DEVICE_TYPE_SOURCE, 64 GST_V4L2_DEVICE_TYPE_SINK 65 } GstV4l2DeviceType; 66 67 struct _GstV4l2DeviceProviderClass { 68 GstDeviceProviderClass parent_class; 69 }; 70 71 GType gst_v4l2_device_provider_get_type (void); 72 73 74 typedef struct _GstV4l2Device GstV4l2Device; 75 typedef struct _GstV4l2DeviceClass GstV4l2DeviceClass; 76 77 #define GST_TYPE_V4L2_DEVICE (gst_v4l2_device_get_type()) 78 #define GST_IS_V4L2_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_DEVICE)) 79 #define GST_IS_V4L2_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_DEVICE)) 80 #define GST_V4L2_DEVICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_V4L2_DEVICE, GstV4l2DeviceClass)) 81 #define GST_V4L2_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_DEVICE, GstV4l2Device)) 82 #define GST_V4L2_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstV4l2DeviceClass)) 83 #define GST_V4L2_DEVICE_CAST(obj) ((GstV4l2Device *)(obj)) 84 85 struct _GstV4l2Device { 86 GstDevice parent; 87 88 gchar *device_path; 89 gchar *syspath; 90 const gchar *element; 91 }; 92 93 struct _GstV4l2DeviceClass { 94 GstDeviceClass parent_class; 95 }; 96 97 GType gst_v4l2_device_get_type (void); 98 99 G_END_DECLS 100 101 #endif /* __GST_V4L2_DEVICE_PROVIDER_H__ */ 102