1 /* Copyright (c) 2012, The Linux Foundation. All rights reserved.
2  *
3  * Redistribution and use in source and binary forms, with or without
4  * modification, are permitted provided that the following conditions are
5  * met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above
9  *       copyright notice, this list of conditions and the following
10  *       disclaimer in the documentation and/or other materials provided
11  *       with the distribution.
12  *     * Neither the name of The Linux Foundation nor the names of its
13  *       contributors may be used to endorse or promote products derived
14  *       from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  */
29 
30 #define ATTRIBUTE_VALUE_DELIM ('=')
31 #define ATTRIBUTE_STRING_DELIM (";")
32 
33 #define METADATA_PARSING_ERR (-1)
34 #define METADATA_PARSING_CONTINUE (0)
35 #define METADATA_PARSING_DONE (1)
36 
37 #define MIN(x,y) (((x)>(y))?(y):(x))
38 
39 struct video_encode_metadata_t {
40     int hint_id;
41     int state;
42 };
43 
44 struct video_decode_metadata_t {
45     int hint_id;
46     int state;
47 };
48 
49 int parse_metadata(char *metadata, char **metadata_saveptr,
50     char *attribute, int attribute_size, char *value, int value_size);
51 int parse_video_encode_metadata(char *metadata,
52     struct video_encode_metadata_t *video_encode_metadata);
53 int parse_video_decode_metadata(char *metadata,
54     struct video_decode_metadata_t *video_decode_metadata);
55