/src/ffmpeg/libavcodec/parser_internal.h
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1 | | /* |
2 | | * This file is part of FFmpeg. |
3 | | * |
4 | | * FFmpeg is free software; you can redistribute it and/or |
5 | | * modify it under the terms of the GNU Lesser General Public |
6 | | * License as published by the Free Software Foundation; either |
7 | | * version 2.1 of the License, or (at your option) any later version. |
8 | | * |
9 | | * FFmpeg is distributed in the hope that it will be useful, |
10 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | | * Lesser General Public License for more details. |
13 | | * |
14 | | * You should have received a copy of the GNU Lesser General Public |
15 | | * License along with FFmpeg; if not, write to the Free Software |
16 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | | */ |
18 | | |
19 | | #ifndef AVCODEC_PARSER_INTERNAL_H |
20 | | #define AVCODEC_PARSER_INTERNAL_H |
21 | | |
22 | | #include <stdint.h> |
23 | | |
24 | | #include "libavutil/macros.h" |
25 | | #include "avcodec.h" |
26 | | #include "codec_id.h" |
27 | | |
28 | | #if FF_API_PARSER_PRIVATE |
29 | | typedef union FFCodecParser { |
30 | | struct { |
31 | | #if FF_API_PARSER_CODECID |
32 | | int codec_ids[7]; /* several codec IDs are permitted */ |
33 | | #else |
34 | | enum AVCodecID codec_ids[7]; /* several codec IDs are permitted */ |
35 | | #endif |
36 | | int priv_data_size; |
37 | | int (*init)(AVCodecParserContext *s); |
38 | | int (*parse)(AVCodecParserContext *s, |
39 | | AVCodecContext *avctx, |
40 | | const uint8_t **poutbuf, int *poutbuf_size, |
41 | | const uint8_t *buf, int buf_size); |
42 | | void (*close)(AVCodecParserContext *s); |
43 | | int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size); |
44 | | }; |
45 | | AVCodecParser p; |
46 | | #else |
47 | | typedef struct FFCodecParser { |
48 | | AVCodecParser p; |
49 | | unsigned priv_data_size; |
50 | | int (*init)(AVCodecParserContext *s); |
51 | | int (*parse)(AVCodecParserContext *s, |
52 | | AVCodecContext *avctx, |
53 | | const uint8_t **poutbuf, int *poutbuf_size, |
54 | | const uint8_t *buf, int buf_size); |
55 | | void (*close)(AVCodecParserContext *s); |
56 | | #endif |
57 | | } FFCodecParser; |
58 | | |
59 | | static inline const FFCodecParser *ffcodecparser(const AVCodecParser *parser) |
60 | 0 | { |
61 | 0 | return (const FFCodecParser*)parser; |
62 | 0 | } Unexecuted instantiation: parser.c:ffcodecparser Unexecuted instantiation: parsers.c:ffcodecparser |
63 | | |
64 | | #define EIGTH_ARG(a,b,c,d,e,f,g,h,...) h |
65 | | #define NO_FAIL |
66 | | // Expands to nothing if <= 7 args; induces compilation failure if not. |
67 | | #define CHECK_FOR_TOO_MANY_IDS(...) AV_JOIN(EIGTH_ARG(__VA_ARGS__, NO, NO, NO, NO, NO, NO, NO, NO), _FAIL) |
68 | | |
69 | | // For compatibility with MSVC's old, spec-incompliant preprocessor. |
70 | | #define FF_MSVC_EXPAND(...) __VA_ARGS__ |
71 | | #define FIRST_SEVEN2(a,b,c,d,e,f,g,...) a,b,c,d,e,f,g |
72 | | #define FIRST_SEVEN(...) FF_MSVC_EXPAND(FIRST_SEVEN2(__VA_ARGS__)) |
73 | | #define TIMES_SEVEN(a) a,a,a,a,a,a,a |
74 | | |
75 | | #if FF_API_PARSER_PRIVATE |
76 | | #define PARSER_CODEC_LIST(...) CHECK_FOR_TOO_MANY_IDS(__VA_ARGS__) \ |
77 | | .codec_ids = { FIRST_SEVEN(__VA_ARGS__, TIMES_SEVEN(AV_CODEC_ID_NONE)) } |
78 | | #else |
79 | | #define PARSER_CODEC_LIST(...) CHECK_FOR_TOO_MANY_IDS(__VA_ARGS__) \ |
80 | | .p.codec_ids = { FIRST_SEVEN(__VA_ARGS__, TIMES_SEVEN(AV_CODEC_ID_NONE)) } |
81 | | #endif |
82 | | |
83 | | #endif /* AVCODEC_PARSER_INTERNAL_H */ |