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1 | /* |
2 | * E-AC-3 encoder | |
3 | * Copyright (c) 2011 Justin Ruggles <justin.ruggles@gmail.com> | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /** | |
23 | * @file | |
24 | * E-AC-3 encoder | |
25 | */ | |
26 | ||
27 | #ifndef AVCODEC_EAC3ENC_H | |
28 | #define AVCODEC_EAC3ENC_H | |
29 | ||
30 | #include "ac3enc.h" | |
31 | ||
32 | /** | |
33 | * Initialize E-AC-3 exponent tables. | |
34 | */ | |
35 | void ff_eac3_exponent_init(void); | |
36 | ||
37 | /** | |
38 | * Determine frame exponent strategy use and indices. | |
39 | */ | |
40 | void ff_eac3_get_frame_exp_strategy(AC3EncodeContext *s); | |
41 | ||
42 | /** | |
43 | * Set coupling states. | |
44 | * This determines whether certain flags must be written to the bitstream or | |
45 | * whether they will be implicitly already known by the decoder. | |
46 | */ | |
47 | void ff_eac3_set_cpl_states(AC3EncodeContext *s); | |
48 | ||
49 | /** | |
50 | * Write the E-AC-3 frame header to the output bitstream. | |
51 | */ | |
52 | void ff_eac3_output_frame_header(AC3EncodeContext *s); | |
53 | ||
54 | #endif /* AVCODEC_EAC3ENC_H */ |