| 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 */ |