1 /* GStreamer RIFF I/O
2  * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
3  *
4  * riff-read.h: function declarations for parsing a RIFF file
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_RIFF_READ_H__
23 #define __GST_RIFF_READ_H__
24 
25 #include <glib.h>
26 #include <gst/gst.h>
27 
28 #include "riff-ids.h"
29 
30 G_BEGIN_DECLS
31 
32 /*
33  * Operate using pull_range().
34  */
35 
36 GST_RIFF_API
37 GstFlowReturn gst_riff_read_chunk   (GstElement * element,
38                                      GstPad     * pad,
39                                      guint64    * offset,
40                                      guint32    * tag,
41                                      GstBuffer ** chunk_data);
42 
43 /*
44  * These functions operate on provided data (the caller is
45  * supposed to strip the chunk headers). The buffer is
46  * provided by the caller, the strf/strh/data are filled in
47  * by the function.
48  */
49 
50 GST_RIFF_API
51 gboolean gst_riff_parse_chunk       (GstElement * element,
52                                      GstBuffer  * buf,
53                                      guint      * offset,
54                                      guint32    * fourcc,
55                                      GstBuffer ** chunk_data);
56 
57 GST_RIFF_API
58 gboolean gst_riff_parse_file_header (GstElement * element,
59                                      GstBuffer  * buf,
60                                      guint32    * doctype);
61 
62 GST_RIFF_API
63 gboolean gst_riff_parse_strh        (GstElement     * element,
64                                      GstBuffer      * buf,
65                                      gst_riff_strh ** strh);
66 
67 GST_RIFF_API
68 gboolean gst_riff_parse_strf_vids   (GstElement          * element,
69                                      GstBuffer           * buf,
70                                      gst_riff_strf_vids ** strf,
71                                      GstBuffer          ** data);
72 
73 GST_RIFF_API
74 gboolean gst_riff_parse_strf_auds   (GstElement          * element,
75                                      GstBuffer           * buf,
76                                      gst_riff_strf_auds ** strf,
77                                      GstBuffer          ** data);
78 
79 GST_RIFF_API
80 gboolean gst_riff_parse_strf_iavs   (GstElement          * element,
81                                      GstBuffer           * buf,
82                                      gst_riff_strf_iavs ** strf,
83                                      GstBuffer          ** data);
84 
85 GST_RIFF_API
86 void gst_riff_parse_info            (GstElement  * element,
87                                      GstBuffer   * buf,
88                                      GstTagList ** taglist);
89 /*
90  * Init.
91  */
92 
93 GST_RIFF_API
94 void gst_riff_init                  (void);
95 
96 G_END_DECLS
97 
98 #endif /* __GST_RIFF_READ_H__ */
99