1 /* 2 * Copyright (C) 2014 Collabora Ltd. 3 * Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef __GST_V4L2_TRANSFORM_H__ 23 #define __GST_V4L2_TRANSFORM_H__ 24 25 #include <gst/gst.h> 26 #include <gst/base/gstbasetransform.h> 27 28 #include <gstv4l2object.h> 29 #include <gstv4l2bufferpool.h> 30 31 G_BEGIN_DECLS 32 33 #define GST_TYPE_V4L2_TRANSFORM \ 34 (gst_v4l2_transform_get_type()) 35 #define GST_V4L2_TRANSFORM(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4L2_TRANSFORM,GstV4l2Transform)) 37 #define GST_V4L2_TRANSFORM_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4L2_TRANSFORM,GstV4l2TransformClass)) 39 #define GST_IS_V4L2_TRANSFORM(obj) \ 40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4L2_TRANSFORM)) 41 #define GST_IS_V4L2_TRANSFORM_CLASS(obj) \ 42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4L2_TRANSFORM)) 43 #define GST_V4L2_TRANSFORM_GET_CLASS(inst) \ 44 (G_TYPE_INSTANCE_GET_CLASS ((inst),GST_TYPE_V4L2_TRANSFORM,GstV4l2TransformClass)) 45 46 typedef struct _GstV4l2Transform GstV4l2Transform; 47 typedef struct _GstV4l2TransformClass GstV4l2TransformClass; 48 49 struct _GstV4l2Transform 50 { 51 GstBaseTransform parent; 52 53 /* < private > */ 54 GstV4l2Object * v4l2output; 55 GstV4l2Object * v4l2capture; 56 57 /* pads */ 58 GstCaps *probed_srccaps; 59 GstCaps *probed_sinkcaps; 60 61 /* Selected caps */ 62 GstCaps *incaps; 63 GstCaps *outcaps; 64 65 gboolean disable_passthrough; 66 }; 67 68 struct _GstV4l2TransformClass 69 { 70 GstBaseTransformClass parent_class; 71 gchar *default_device; 72 }; 73 74 GType gst_v4l2_transform_get_type (void); 75 76 gboolean gst_v4l2_is_transform (GstCaps * sink_caps, GstCaps * src_caps); 77 void gst_v4l2_transform_register (GstPlugin * plugin, 78 const gchar *basename, 79 const gchar *device_path, 80 GstCaps * sink_caps, GstCaps * src_caps); 81 82 G_END_DECLS 83 84 #endif /* __GST_V4L2_TRANSFORM_H__ */ 85