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 }; 43