agsantos | c9181b4 | 2020-11-26 12:03:04 -0500 | [diff] [blame] | 1 | /** |
Sébastien Blin | cb783e3 | 2021-02-12 11:34:10 -0500 | [diff] [blame] | 2 | * Copyright (C) 2020-2021 Savoir-faire Linux Inc. |
agsantos | c9181b4 | 2020-11-26 12:03:04 -0500 | [diff] [blame] | 3 | * |
| 4 | * Author: Aline Gondim Santos <aline.gondimsantos@savoirfairelinux.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program 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 |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | */ |
| 20 | |
| 21 | #ifndef AUDIOFORMAT_H |
| 22 | #define AUDIOFORMAT_H |
| 23 | |
| 24 | extern "C" { |
| 25 | #include <libavutil/samplefmt.h> |
| 26 | struct AVFrame; |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Structure to hold sample rate and channel number associated with audio data. |
| 31 | */ |
| 32 | struct AudioFormat |
| 33 | { |
| 34 | unsigned sample_rate; |
| 35 | unsigned nb_channels; |
| 36 | AVSampleFormat sampleFormat; |
| 37 | |
| 38 | constexpr AudioFormat(unsigned sr, unsigned c) |
| 39 | : sample_rate(sr) |
| 40 | , nb_channels(c) |
| 41 | , sampleFormat(AV_SAMPLE_FMT_S16) |
| 42 | {} |
| 43 | |
| 44 | constexpr AudioFormat(unsigned sr, unsigned c, AVSampleFormat f) |
| 45 | : sample_rate(sr) |
| 46 | , nb_channels(c) |
| 47 | , sampleFormat(f) |
| 48 | {} |
| 49 | |
| 50 | static const constexpr unsigned DEFAULT_SAMPLE_RATE = 48000; |
| 51 | static const constexpr AudioFormat DEFAULT() { return AudioFormat {16000, 1}; } |
| 52 | static const constexpr AudioFormat NONE() { return AudioFormat {0, 0}; } |
| 53 | static const constexpr AudioFormat MONO() { return AudioFormat {DEFAULT_SAMPLE_RATE, 1}; } |
| 54 | static const constexpr AudioFormat STEREO() { return AudioFormat {DEFAULT_SAMPLE_RATE, 2}; } |
| 55 | }; |
| 56 | |
| 57 | #endif // AUDIOFORMAT_H |