FFmpeg
libavcodec
mpegaudioenc_fixed.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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#include "
libavutil/channel_layout.h
"
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#include "
codec_internal.h
"
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#include "
mpegaudioenc_template.c
"
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const
FFCodec
ff_mp2fixed_encoder
= {
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.
p
.
name
=
"mp2fixed"
,
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CODEC_LONG_NAME
(
"MP2 fixed point (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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.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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};
AV_CHANNEL_LAYOUT_STEREO
#define AV_CHANNEL_LAYOUT_STEREO
Definition:
channel_layout.h:387
mp2_defaults
static const FFCodecDefault mp2_defaults[]
Definition:
mpegaudioenc_template.c:777
FFCodec
Definition:
codec_internal.h:127
FFCodec::p
AVCodec p
The public AVCodec.
Definition:
codec_internal.h:131
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition:
codec_internal.h:320
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition:
avutil.h:202
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition:
codec_id.h:441
mpegaudioenc_template.c
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
This encoder can reorder user opaque values from input AVFrames and return them with corresponding ou...
Definition:
codec.h:159
MPA_encode_frame
static int MPA_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition:
mpegaudioenc_template.c:737
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition:
codec_internal.h:296
init
int(* init)(AVBSFContext *ctx)
Definition:
dts2pts.c:368
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition:
codec.h:52
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition:
channel_layout.h:311
codec_internal.h
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition:
samplefmt.h:56
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition:
samplefmt.h:55
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition:
samplefmt.h:58
AVCodec::name
const char * name
Name of the codec implementation.
Definition:
codec.h:194
MPA_encode_init
static av_cold int MPA_encode_init(AVCodecContext *avctx)
Definition:
mpegaudioenc_template.c:76
MpegAudioContext
Definition:
mpegaudioenc_template.c:47
channel_layout.h
AV_CHANNEL_LAYOUT_MONO
#define AV_CHANNEL_LAYOUT_MONO
Definition:
channel_layout.h:386
ff_mp2fixed_encoder
const FFCodec ff_mp2fixed_encoder
Definition:
mpegaudioenc_fixed.c:26
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