/*
  * Float MPEG Audio decoder
  * Copyright (c) 2010 Michael Niedermayer
  *
  * 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 "config.h"
 #include "libavutil/samplefmt.h"
 

 #define USE_FLOATS 1

 
 #include "mpegaudio.h"
 
 #define SHR(a,b)       ((a)*(1.0f/(1<<(b))))
 #define FIXR_OLD(a)    ((int)((a) * FRAC_ONE + 0.5))
 #define FIXR(x)        ((float)(x))
 #define FIXHR(x)       ((float)(x))
 #define MULH3(x, y, s) ((s)*(y)*(x))
 #define MULLx(x, y, s) ((y)*(x))
 #define RENAME(a) a ## _float
 #define OUT_FMT   AV_SAMPLE_FMT_FLT
 #define OUT_FMT_P AV_SAMPLE_FMT_FLTP
 
 #include "mpegaudiodec_template.c"

 
 #if CONFIG_MP1FLOAT_DECODER

 AVCodec ff_mp1float_decoder = {
     .name           = "mp1float",

     .long_name      = NULL_IF_CONFIG_SMALL("MP1 (MPEG audio layer 1)"),

     .type           = AVMEDIA_TYPE_AUDIO,

     .id             = AV_CODEC_ID_MP1,

     .priv_data_size = sizeof(MPADecodeContext),
     .init           = decode_init,
     .decode         = decode_frame,

     .capabilities   = CODEC_CAP_DR1,

     .flush          = flush,

     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
                                                       AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_NONE },

 };
 #endif
 #if CONFIG_MP2FLOAT_DECODER

 AVCodec ff_mp2float_decoder = {
     .name           = "mp2float",

     .long_name      = NULL_IF_CONFIG_SMALL("MP2 (MPEG audio layer 2)"),

     .type           = AVMEDIA_TYPE_AUDIO,

     .id             = AV_CODEC_ID_MP2,

     .priv_data_size = sizeof(MPADecodeContext),
     .init           = decode_init,
     .decode         = decode_frame,

     .capabilities   = CODEC_CAP_DR1,

     .flush          = flush,

     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
                                                       AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_NONE },

 };
 #endif
 #if CONFIG_MP3FLOAT_DECODER

 AVCodec ff_mp3float_decoder = {
     .name           = "mp3float",

     .long_name      = NULL_IF_CONFIG_SMALL("MP3 (MPEG audio layer 3)"),

     .type           = AVMEDIA_TYPE_AUDIO,

     .id             = AV_CODEC_ID_MP3,

     .priv_data_size = sizeof(MPADecodeContext),
     .init           = decode_init,
     .decode         = decode_frame,

     .capabilities   = CODEC_CAP_DR1,

     .flush          = flush,

     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
                                                       AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_NONE },

 };
 #endif
 #if CONFIG_MP3ADUFLOAT_DECODER

 AVCodec ff_mp3adufloat_decoder = {
     .name           = "mp3adufloat",

     .long_name      = NULL_IF_CONFIG_SMALL("ADU (Application Data Unit) MP3 (MPEG audio layer 3)"),

     .type           = AVMEDIA_TYPE_AUDIO,

     .id             = AV_CODEC_ID_MP3ADU,

     .priv_data_size = sizeof(MPADecodeContext),
     .init           = decode_init,
     .decode         = decode_frame_adu,

     .capabilities   = CODEC_CAP_DR1,

     .flush          = flush,

     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
                                                       AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_NONE },

 };
 #endif
 #if CONFIG_MP3ON4FLOAT_DECODER

 AVCodec ff_mp3on4float_decoder = {
     .name           = "mp3on4float",

     .long_name      = NULL_IF_CONFIG_SMALL("MP3onMP4"),

     .type           = AVMEDIA_TYPE_AUDIO,

     .id             = AV_CODEC_ID_MP3ON4,

     .priv_data_size = sizeof(MP3On4DecodeContext),
     .init           = decode_init_mp3on4,
     .close          = decode_close_mp3on4,
     .decode         = decode_frame_mp3on4,

     .capabilities   = CODEC_CAP_DR1,

     .flush          = flush_mp3on4,

     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
                                                       AV_SAMPLE_FMT_NONE },

 };
 #endif