FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/dvbtxt.h
Date: 2021-09-22 05:58:22
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1 /*
2 * DVB teletext common functions.
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg 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 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef AVCODEC_DVBTXT_H
22 #define AVCODEC_DVBTXT_H
23
24 #include "libavutil/attributes.h"
25
26 /* Returns true if data identifier matches a teletext stream according to EN
27 * 301 775 section 4.4.2 */
28 1 static av_always_inline int ff_data_identifier_is_teletext(int data_identifier)
29 {
30
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1 return (data_identifier >= 0x10 && data_identifier <= 0x1F ||
31 data_identifier >= 0x99 && data_identifier <= 0x9B);
32 }
33
34 /* Returns true if data unit id matches EBU teletext data according to
35 * EN 301 775 section 4.4.2 */
36 static av_always_inline int ff_data_unit_id_is_teletext(int data_unit_id)
37 {
38 return (data_unit_id == 0x02 || data_unit_id == 0x03);
39 }
40
41 #endif /* AVCODEC_DVBTXT_H */
42