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https://github.com/FFmpeg/FFmpeg.git
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47 lines
2.0 KiB
C
47 lines
2.0 KiB
C
/*
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* The simplest mpeg audio layer 2 encoder
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* Copyright (c) 2000, 2001 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/channel_layout.h"
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#define USE_FLOATS 1
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#include "codec_internal.h"
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#include "mpegaudioenc_template.c"
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const FFCodec ff_mp2_encoder = {
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.p.name = "mp2",
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CODEC_LONG_NAME("MP2 (MPEG audio layer 2)"),
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.p.type = AVMEDIA_TYPE_AUDIO,
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.p.id = AV_CODEC_ID_MP2,
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.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
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.priv_data_size = sizeof(MpegAudioContext),
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.init = MPA_encode_init,
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FF_CODEC_ENCODE_CB(MPA_encode_frame),
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.p.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
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AV_SAMPLE_FMT_NONE },
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.p.supported_samplerates = (const int[]){
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44100, 48000, 32000, 22050, 24000, 16000, 0
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},
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CODEC_OLD_CHANNEL_LAYOUTS(AV_CH_LAYOUT_MONO, AV_CH_LAYOUT_STEREO)
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.p.ch_layouts = (const AVChannelLayout[]){ AV_CHANNEL_LAYOUT_MONO,
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AV_CHANNEL_LAYOUT_STEREO,
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{ 0 } },
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.defaults = mp2_defaults,
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};
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