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mpegaudioenc_fixed.c
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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 "mpegaudioenc_template.c"
23 
25  .name = "mp2fixed",
26  .long_name = NULL_IF_CONFIG_SMALL("MP2 fixed point (MPEG audio layer 2)"),
27  .type = AVMEDIA_TYPE_AUDIO,
28  .id = AV_CODEC_ID_MP2,
29  .priv_data_size = sizeof(MpegAudioContext),
31  .encode2 = MPA_encode_frame,
32  .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
34  .supported_samplerates = (const int[]){
35  44100, 48000, 32000, 22050, 24000, 16000, 0
36  },
37  .channel_layouts = (const uint64_t[]){ AV_CH_LAYOUT_MONO,
39  0 },
40  .defaults = mp2_defaults,
41 };
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
The simplest mpeg audio layer 2 encoder.
#define AV_CH_LAYOUT_STEREO
AVCodec.
Definition: avcodec.h:3351
static int MPA_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
static const AVCodecDefault mp2_defaults[]
AVCodec ff_mp2fixed_encoder
static av_cold int MPA_encode_init(AVCodecContext *avctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * name
Name of the codec implementation.
Definition: avcodec.h:3358
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
signed 16 bits
Definition: samplefmt.h:61
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:701
#define AV_CH_LAYOUT_MONO