| 1 | /* |
| 2 | * The simplest mpeg audio layer 2 encoder |
| 3 | * Copyright (c) 2000, 2001 Fabrice Bellard |
| 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 | #define USE_FLOATS 1 |
| 23 | #include "mpegaudioenc_template.c" |
| 24 | |
| 25 | AVCodec ff_mp2_encoder = { |
| 26 | .name = "mp2", |
| 27 | .long_name = NULL_IF_CONFIG_SMALL("MP2 (MPEG audio layer 2)"), |
| 28 | .type = AVMEDIA_TYPE_AUDIO, |
| 29 | .id = AV_CODEC_ID_MP2, |
| 30 | .priv_data_size = sizeof(MpegAudioContext), |
| 31 | .init = MPA_encode_init, |
| 32 | .encode2 = MPA_encode_frame, |
| 33 | .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, |
| 34 | AV_SAMPLE_FMT_NONE }, |
| 35 | .supported_samplerates = (const int[]){ |
| 36 | 44100, 48000, 32000, 22050, 24000, 16000, 0 |
| 37 | }, |
| 38 | .channel_layouts = (const uint64_t[]){ AV_CH_LAYOUT_MONO, |
| 39 | AV_CH_LAYOUT_STEREO, |
| 40 | 0 }, |
| 41 | .defaults = mp2_defaults, |
| 42 | }; |