1 /* GStreamer 2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> 3 * 2000 Wim Taymans <wtay@chello.be> 4 * 5 * gstidentity.h: 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 24 #ifndef __GST_CAPS_FILTER_H__ 25 #define __GST_CAPS_FILTER_H__ 26 27 28 #include <gst/gst.h> 29 #include <gst/base/gstbasetransform.h> 30 31 G_BEGIN_DECLS 32 33 #define GST_TYPE_CAPS_FILTER \ 34 (gst_capsfilter_get_type()) 35 #define GST_CAPS_FILTER(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAPS_FILTER,GstCapsFilter)) 37 #define GST_CAPS_FILTER_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAPS_FILTER,GstCapsFilterClass)) 39 #define GST_IS_CAPS_FILTER(obj) \ 40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAPS_FILTER)) 41 #define GST_IS_CAPS_FILTER_CLASS(klass) \ 42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAPS_FILTER)) 43 44 typedef struct _GstCapsFilter GstCapsFilter; 45 typedef struct _GstCapsFilterClass GstCapsFilterClass; 46 47 /** 48 * GstCapsFilterCapsChangeMode: 49 * @GST_CAPS_FILTER_CAPS_CHANGE_MODE_IMMEDIATE: Only accept the current filter caps 50 * @GST_CAPS_FILTER_CAPS_CHANGE_MODE_DELAYED: Temporarily accept previous filter caps 51 * 52 * Filter caps change behaviour 53 */ 54 typedef enum { 55 GST_CAPS_FILTER_CAPS_CHANGE_MODE_IMMEDIATE, 56 GST_CAPS_FILTER_CAPS_CHANGE_MODE_DELAYED 57 } GstCapsFilterCapsChangeMode; 58 59 /** 60 * GstCapsFilter: 61 * 62 * The opaque #GstCapsFilter data structure. 63 */ 64 struct _GstCapsFilter { 65 GstBaseTransform trans; 66 67 GstCaps *filter_caps; 68 gboolean filter_caps_used; 69 GstCapsFilterCapsChangeMode caps_change_mode; 70 gboolean got_sink_caps; 71 72 GList *pending_events; 73 GList *previous_caps; 74 }; 75 76 struct _GstCapsFilterClass { 77 GstBaseTransformClass trans_class; 78 }; 79 80 G_GNUC_INTERNAL GType gst_capsfilter_get_type (void); 81 82 G_END_DECLS 83 84 #endif /* __GST_CAPS_FILTER_H__ */ 85 86