FFmpeg/libavcodec/mpegaudioenc_fixed.c

/*
 * The simplest mpeg audio layer 2 encoder
 * Copyright (c) 2000, 2001 Fabrice Bellard
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/channel_layout.h"
#include "codec_internal.h"
#include "mpegaudioenc_template.c"

const FFCodec ff_mp2fixed_encoder = {
    .p.name                = "mp2fixed",
    .p.long_name           = NULL_IF_CONFIG_SMALL("MP2 fixed point (MPEG audio layer 2)"),
    .p.type                = AVMEDIA_TYPE_AUDIO,
    .p.id                  = AV_CODEC_ID_MP2,
    .priv_data_size        = sizeof(MpegAudioContext),
    .init                  = MPA_encode_init,
    FF_CODEC_ENCODE_CB(MPA_encode_frame),
    .p.sample_fmts         = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
                                                            AV_SAMPLE_FMT_NONE },
    .p.supported_samplerates = (const int[]){
        44100, 48000,  32000, 22050, 24000, 16000, 0
    },
#if FF_API_OLD_CHANNEL_LAYOUT
    .p.channel_layouts     = (const uint64_t[]){ AV_CH_LAYOUT_MONO,
                                                 AV_CH_LAYOUT_STEREO,
                                                 0 },
#endif
    .p.ch_layouts          = (const AVChannelLayout[]){ AV_CHANNEL_LAYOUT_MONO,
                                                        AV_CHANNEL_LAYOUT_STEREO,
                                                        { 0 } },
    .defaults              = mp2_defaults,
    .caps_internal         = FF_CODEC_CAP_INIT_THREADSAFE,
};