2 * Float MPEG Audio decoder
3 * Copyright (c) 2010 Michael Niedermayer
5 * This file is part of FFmpeg.
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.
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.
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
22 #define CONFIG_FLOAT 1
23 #include "mpegaudiodec.c"
25 void ff_mpa_synth_filter_float(MPADecodeContext *s, float *synth_buf_ptr,
26 int *synth_buf_offset,
27 float *window, int *dither_state,
28 float *samples, int incr,
29 float sb_samples[SBLIMIT])
34 offset = *synth_buf_offset;
35 synth_buf = synth_buf_ptr + offset;
37 dct32(synth_buf, sb_samples);
38 s->apply_window_mp3(synth_buf, window, dither_state, samples, incr);
40 offset = (offset - 32) & 511;
41 *synth_buf_offset = offset;
44 #if CONFIG_MP1FLOAT_DECODER
45 AVCodec mp1float_decoder =
50 sizeof(MPADecodeContext),
57 .long_name= NULL_IF_CONFIG_SMALL("MP1 (MPEG audio layer 1)"),
60 #if CONFIG_MP2FLOAT_DECODER
61 AVCodec mp2float_decoder =
66 sizeof(MPADecodeContext),
73 .long_name= NULL_IF_CONFIG_SMALL("MP2 (MPEG audio layer 2)"),
76 #if CONFIG_MP3FLOAT_DECODER
77 AVCodec mp3float_decoder =
82 sizeof(MPADecodeContext),
89 .long_name= NULL_IF_CONFIG_SMALL("MP3 (MPEG audio layer 3)"),
92 #if CONFIG_MP3ADUFLOAT_DECODER
93 AVCodec mp3adufloat_decoder =
98 sizeof(MPADecodeContext),
103 CODEC_CAP_PARSE_ONLY,
105 .long_name= NULL_IF_CONFIG_SMALL("ADU (Application Data Unit) MP3 (MPEG audio layer 3)"),
108 #if CONFIG_MP3ON4FLOAT_DECODER
109 AVCodec mp3on4float_decoder =
114 sizeof(MP3On4DecodeContext),
120 .long_name= NULL_IF_CONFIG_SMALL("MP3onMP4"),