1 /* GStreamer tag muxer base class 2 * Copyright (C) 2006 Christophe Fergeau <teuf@gnome.org> 3 * Copyright (C) 2006,2011 Tim-Philipp Müller <tim centricular net> 4 * Copyright (C) 2009 Pioneers of the Inevitable <songbird@songbirdnest.com> 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., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef GST_TAG_MUX_H 23 #define GST_TAG_MUX_H 24 25 #include <gst/gst.h> 26 #include <gst/tag/tag-prelude.h> 27 28 G_BEGIN_DECLS 29 30 #define GST_TYPE_TAG_MUX \ 31 (gst_tag_mux_get_type()) 32 #define GST_TAG_MUX(obj) \ 33 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TAG_MUX,GstTagMux)) 34 #define GST_TAG_MUX_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TAG_MUX,GstTagMuxClass)) 36 #define GST_IS_TAG_MUX(obj) \ 37 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TAG_MUX)) 38 #define GST_IS_TAG_MUX_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TAG_MUX)) 40 41 typedef struct _GstTagMux GstTagMux; 42 typedef struct _GstTagMuxClass GstTagMuxClass; 43 typedef struct _GstTagMuxPrivate GstTagMuxPrivate; 44 45 /** 46 * GstTagMux: 47 * @element: parent element 48 * 49 * Opaque #GstTagMux structure. 50 */ 51 struct _GstTagMux { 52 GstElement element; 53 54 /*< private >*/ 55 GstTagMuxPrivate *priv; 56 57 gpointer _gst_reserved[GST_PADDING]; 58 }; 59 60 /** 61 * GstTagMuxClass: 62 * @parent_class: the parent class. 63 * @render_start_tag: create a tag buffer to add to the beginning of the 64 * input stream given a tag list, or NULL 65 * @render_end_tag: create a tag buffer to add to the end of the 66 * input stream given a tag list, or NULL 67 * 68 * The #GstTagMuxClass structure. Subclasses need to override at least one 69 * of the two render vfuncs. 70 */ 71 struct _GstTagMuxClass { 72 GstElementClass parent_class; 73 74 /* vfuncs */ 75 GstBuffer * (*render_start_tag) (GstTagMux * mux, const GstTagList * tag_list); 76 GstBuffer * (*render_end_tag) (GstTagMux * mux, const GstTagList * tag_list); 77 78 /*< private >*/ 79 gpointer _gst_reserved[GST_PADDING]; 80 }; 81 82 GST_TAG_API 83 GType gst_tag_mux_get_type (void); 84 85 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstTagMux, gst_object_unref) 86 87 G_END_DECLS 88 89 #endif 90