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 #include "libavutil/channel_layout.h" 23 #include "codec_internal.h" 24 #include "mpegaudioenc_template.c" 25 26 const FFCodec ff_mp2fixed_encoder = { 27 .p.name = "mp2fixed", 28 .p.long_name = NULL_IF_CONFIG_SMALL("MP2 fixed point (MPEG audio layer 2)"), 29 .p.type = AVMEDIA_TYPE_AUDIO, 30 .p.id = AV_CODEC_ID_MP2, 31 .priv_data_size = sizeof(MpegAudioContext), 32 .init = MPA_encode_init, 33 FF_CODEC_ENCODE_CB(MPA_encode_frame), 34 .p.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, 35 AV_SAMPLE_FMT_NONE }, 36 .p.supported_samplerates = (const int[]){ 37 44100, 48000, 32000, 22050, 24000, 16000, 0 38 }, 39 #if FF_API_OLD_CHANNEL_LAYOUT 40 .p.channel_layouts = (const uint64_t[]){ AV_CH_LAYOUT_MONO, 41 AV_CH_LAYOUT_STEREO, 42 0 }, 43 #endif 44 .p.ch_layouts = (const AVChannelLayout[]){ AV_CHANNEL_LAYOUT_MONO, 45 AV_CHANNEL_LAYOUT_STEREO, 46 { 0 } }, 47 .defaults = mp2_defaults, 48 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, 49 }; 50