1 /* GStreamer 2 * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de> 3 * 4 * gsttypefindelement.h: element that detects type of stream 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 23 #ifndef __GST_TYPE_FIND_ELEMENT_H__ 24 #define __GST_TYPE_FIND_ELEMENT_H__ 25 26 #include <gst/gstinfo.h> 27 #include <gst/gstelement.h> 28 #include <gst/base/gstadapter.h> 29 30 G_BEGIN_DECLS 31 32 #define GST_TYPE_TYPE_FIND_ELEMENT (gst_type_find_element_get_type ()) 33 #define GST_TYPE_FIND_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TYPE_FIND_ELEMENT, GstTypeFindElement)) 34 #define GST_IS_TYPE_FIND_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TYPE_FIND_ELEMENT)) 35 #define GST_TYPE_FIND_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TYPE_FIND_ELEMENT, GstTypeFindElementClass)) 36 #define GST_IS_TYPE_FIND_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TYPE_FIND_ELEMENT)) 37 38 typedef struct _GstTypeFindElement GstTypeFindElement; 39 typedef struct _GstTypeFindElementClass GstTypeFindElementClass; 40 41 /** 42 * GstTypeFindElement: 43 * 44 * Opaque #GstTypeFindElement data structure 45 */ 46 struct _GstTypeFindElement { 47 GstElement element; 48 49 GstPad * sink; 50 GstPad * src; 51 52 guint min_probability; 53 GstCaps * caps; 54 55 guint mode; 56 GstAdapter * adapter; 57 58 GList * cached_events; 59 GstCaps * force_caps; 60 61 guint64 initial_offset; 62 63 /* Only used when driving the pipeline */ 64 gboolean need_segment; 65 gboolean need_stream_start; 66 GstSegment segment; 67 guint64 offset; 68 guint32 seqnum; 69 #ifdef OHOS_OPT_COMPAT 70 // ohos.opt.compat.0004 71 guint pre_prebability; 72 GList *re_typefind_factory_list; 73 GstCaps *pre_find_caps; 74 #endif 75 }; 76 77 struct _GstTypeFindElementClass { 78 GstElementClass parent_class; 79 80 /* signals */ 81 void (*have_type) (GstTypeFindElement *element, 82 guint probability, 83 GstCaps *caps); 84 }; 85 86 G_GNUC_INTERNAL GType gst_type_find_element_get_type (void); 87 88 G_END_DECLS 89 90 #endif /* __GST_TYPE_FIND_ELEMENT_H__ */ 91