FFmpeg
libavcodec
mpegaudioenc_float.c
Go to the documentation of this file.
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/*
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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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#define USE_FLOATS 1
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#include "
mpegaudioenc_template.c
"
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AVCodec
ff_mp2_encoder
= {
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.
name
=
"mp2"
,
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.long_name =
NULL_IF_CONFIG_SMALL
(
"MP2 (MPEG audio layer 2)"
),
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.type =
AVMEDIA_TYPE_AUDIO
,
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.id =
AV_CODEC_ID_MP2
,
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.priv_data_size =
sizeof
(
MpegAudioContext
),
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.
init
=
MPA_encode_init
,
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.encode2 =
MPA_encode_frame
,
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.
sample_fmts
= (
const
enum
AVSampleFormat
[]){
AV_SAMPLE_FMT_S16
,
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AV_SAMPLE_FMT_NONE
},
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.supported_samplerates = (
const
int
[]){
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44100, 48000, 32000, 22050, 24000, 16000, 0
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},
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.channel_layouts = (
const
uint64_t[]){
AV_CH_LAYOUT_MONO
,
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AV_CH_LAYOUT_STEREO
,
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0 },
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.defaults =
mp2_defaults
,
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};
AVCodec
AVCodec.
Definition:
codec.h:197
init
static av_cold int init(AVCodecContext *avctx)
Definition:
avrndec.c:31
sample_fmts
static enum AVSampleFormat sample_fmts[]
Definition:
adpcmenc.c:925
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition:
channel_layout.h:90
mp2_defaults
static const AVCodecDefault mp2_defaults[]
Definition:
mpegaudioenc_template.c:781
AV_CH_LAYOUT_STEREO
#define AV_CH_LAYOUT_STEREO
Definition:
channel_layout.h:91
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition:
avutil.h:202
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition:
codec_id.h:424
mpegaudioenc_template.c
ff_mp2_encoder
AVCodec ff_mp2_encoder
Definition:
mpegaudioenc_float.c:25
MPA_encode_frame
static int MPA_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition:
mpegaudioenc_template.c:744
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition:
internal.h:117
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition:
samplefmt.h:59
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition:
samplefmt.h:58
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition:
samplefmt.h:61
AVCodec::name
const char * name
Name of the codec implementation.
Definition:
codec.h:204
MPA_encode_init
static av_cold int MPA_encode_init(AVCodecContext *avctx)
Definition:
mpegaudioenc_template.c:76
MpegAudioContext
Definition:
mpegaudioenc_template.c:47
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