blob: c2506a5bfd68f1875164c67031ca885e4d1ee22b
1 | /* |
2 | * Common AAC and AC-3 parser prototypes |
3 | * Copyright (c) 2003 Fabrice Bellard |
4 | * Copyright (c) 2003 Michael Niedermayer |
5 | * |
6 | * This file is part of FFmpeg. |
7 | * |
8 | * FFmpeg is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU Lesser General Public |
10 | * License as published by the Free Software Foundation; either |
11 | * version 2.1 of the License, or (at your option) any later version. |
12 | * |
13 | * FFmpeg is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * Lesser General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU Lesser General Public |
19 | * License along with FFmpeg; if not, write to the Free Software |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
21 | */ |
22 | |
23 | #ifndef AVCODEC_AAC_AC3_PARSER_H |
24 | #define AVCODEC_AAC_AC3_PARSER_H |
25 | |
26 | #include <stdint.h> |
27 | #include "avcodec.h" |
28 | #include "parser.h" |
29 | |
30 | typedef enum { |
31 | AAC_AC3_PARSE_ERROR_SYNC = -0x1030c0a, |
32 | AAC_AC3_PARSE_ERROR_BSID = -0x2030c0a, |
33 | AAC_AC3_PARSE_ERROR_SAMPLE_RATE = -0x3030c0a, |
34 | AAC_AC3_PARSE_ERROR_FRAME_SIZE = -0x4030c0a, |
35 | AAC_AC3_PARSE_ERROR_FRAME_TYPE = -0x5030c0a, |
36 | AAC_AC3_PARSE_ERROR_CRC = -0x6030c0a, |
37 | AAC_AC3_PARSE_ERROR_CHANNEL_CFG = -0x7030c0a, |
38 | } AACAC3ParseError; |
39 | |
40 | typedef struct AACAC3ParseContext { |
41 | ParseContext pc; |
42 | int frame_size; |
43 | int header_size; |
44 | int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info, |
45 | int *need_next_header, int *new_frame_start); |
46 | |
47 | int channels; |
48 | int sample_rate; |
49 | int bit_rate; |
50 | int samples; |
51 | uint64_t channel_layout; |
52 | int service_type; |
53 | |
54 | int remaining_size; |
55 | uint64_t state; |
56 | |
57 | int need_next_header; |
58 | enum AVCodecID codec_id; |
59 | } AACAC3ParseContext; |
60 | |
61 | int ff_aac_ac3_parse(AVCodecParserContext *s1, |
62 | AVCodecContext *avctx, |
63 | const uint8_t **poutbuf, int *poutbuf_size, |
64 | const uint8_t *buf, int buf_size); |
65 | |
66 | #endif /* AVCODEC_AAC_AC3_PARSER_H */ |
67 |