root/liboggz/trunk/src/liboggz/oggz_stream.c

Revision 3795, 3.2 kB (checked in by conrad, 2 weeks ago)

add API functions for getting and seting preroll:
oggz_get_preroll(), oggz_set_preroll()
Set preroll in oggz_auto.c for vorbis and speex

Line 
1 /*
2    Copyright (C) 2003 Commonwealth Scientific and Industrial Research
3    Organisation (CSIRO) Australia
4
5    Redistribution and use in source and binary forms, with or without
6    modification, are permitted provided that the following conditions
7    are met:
8
9    - Redistributions of source code must retain the above copyright
10    notice, this list of conditions and the following disclaimer.
11
12    - Redistributions in binary form must reproduce the above copyright
13    notice, this list of conditions and the following disclaimer in the
14    documentation and/or other materials provided with the distribution.
15
16    - Neither the name of CSIRO Australia nor the names of its
17    contributors may be used to endorse or promote products derived from
18    this software without specific prior written permission.
19
20    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23    PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
24    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include "config.h"
34
35 #include "oggz_private.h"
36
37 int
38 oggz_stream_set_content (OGGZ * oggz, long serialno, int content)
39 {
40   oggz_stream_t * stream;
41
42   stream = oggz_get_stream (oggz, serialno);
43   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;
44
45   stream->content = content;
46
47   return 0;
48 }
49
50 OggzStreamContent
51 oggz_stream_get_content (OGGZ * oggz, long serialno)
52 {
53   oggz_stream_t * stream;
54
55   if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
56  
57   stream = oggz_get_stream (oggz, serialno);
58   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;
59
60   return stream->content;
61 }
62
63 const char *
64 oggz_stream_get_content_type (OGGZ *oggz, long serialno)
65 {
66   int content = oggz_stream_get_content(oggz, serialno);
67
68   if (content == OGGZ_ERR_BAD_SERIALNO || content == OGGZ_ERR_BAD_OGGZ)
69   {
70     return NULL;
71   }
72
73   return oggz_auto_codec_ident[content].content_type;
74 } 
75
76 int
77 oggz_stream_get_numheaders (OGGZ * oggz, long serialno)
78 {
79   oggz_stream_t * stream;
80
81   if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
82  
83   stream = oggz_get_stream (oggz, serialno);
84   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;
85
86   return stream->numheaders;
87 }
88
89 int
90 oggz_set_preroll (OGGZ * oggz, long serialno, int preroll)
91 {
92   oggz_stream_t * stream;
93
94   if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
95
96   stream = oggz_get_stream (oggz, serialno);
97   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;
98
99   stream->preroll = preroll;
100
101   return 0;
102 }
103
104 int
105 oggz_get_preroll (OGGZ * oggz, long serialno)
106 {
107   oggz_stream_t * stream;
108
109   if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
110
111   stream = oggz_get_stream (oggz, serialno);
112   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;
113
114   return stream->preroll;
115 }
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