GCC Code Coverage Report | |||||||||||||||||||||
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Line | Branch | Exec | Source |
1 |
/* |
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2 |
* AAC encoder |
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3 |
* Copyright (C) 2008 Konstantin Shishkov |
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4 |
* |
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5 |
* This file is part of FFmpeg. |
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6 |
* |
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7 |
* FFmpeg is free software; you can redistribute it and/or |
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8 |
* modify it under the terms of the GNU Lesser General Public |
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9 |
* License as published by the Free Software Foundation; either |
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10 |
* version 2.1 of the License, or (at your option) any later version. |
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11 |
* |
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12 |
* FFmpeg is distributed in the hope that it will be useful, |
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13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 |
* Lesser General Public License for more details. |
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16 |
* |
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17 |
* You should have received a copy of the GNU Lesser General Public |
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18 |
* License along with FFmpeg; if not, write to the Free Software |
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19 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 |
*/ |
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21 |
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22 |
/** |
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23 |
* @file |
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24 |
* AAC encoder |
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25 |
*/ |
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26 |
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27 |
/*********************************** |
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28 |
* TODOs: |
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29 |
* add sane pulse detection |
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30 |
***********************************/ |
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31 |
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32 |
#include "libavutil/libm.h" |
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33 |
#include "libavutil/float_dsp.h" |
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34 |
#include "libavutil/opt.h" |
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35 |
#include "avcodec.h" |
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36 |
#include "put_bits.h" |
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37 |
#include "internal.h" |
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38 |
#include "mpeg4audio.h" |
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39 |
#include "sinewin.h" |
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40 |
#include "profiles.h" |
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41 |
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42 |
#include "aac.h" |
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43 |
#include "aactab.h" |
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44 |
#include "aacenc.h" |
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45 |
#include "aacenctab.h" |
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46 |
#include "aacenc_utils.h" |
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47 |
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48 |
#include "psymodel.h" |
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49 |
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50 |
static void put_pce(PutBitContext *pb, AVCodecContext *avctx) |
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51 |
{ |
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52 |
int i, j; |
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53 |
AACEncContext *s = avctx->priv_data; |
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54 |
AACPCEInfo *pce = &s->pce; |
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55 |
const int bitexact = avctx->flags & AV_CODEC_FLAG_BITEXACT; |
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56 |
const char *aux_data = bitexact ? "Lavc" : LIBAVCODEC_IDENT; |
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57 |
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58 |
put_bits(pb, 4, 0); |
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59 |
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60 |
put_bits(pb, 2, avctx->profile); |
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61 |
put_bits(pb, 4, s->samplerate_index); |
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62 |
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63 |
put_bits(pb, 4, pce->num_ele[0]); /* Front */ |
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64 |
put_bits(pb, 4, pce->num_ele[1]); /* Side */ |
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65 |
put_bits(pb, 4, pce->num_ele[2]); /* Back */ |
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66 |
put_bits(pb, 2, pce->num_ele[3]); /* LFE */ |
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67 |
put_bits(pb, 3, 0); /* Assoc data */ |
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68 |
put_bits(pb, 4, 0); /* CCs */ |
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69 |
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70 |
put_bits(pb, 1, 0); /* Stereo mixdown */ |
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71 |
put_bits(pb, 1, 0); /* Mono mixdown */ |
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72 |
put_bits(pb, 1, 0); /* Something else */ |
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73 |
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74 |
for (i = 0; i < 4; i++) { |
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75 |
for (j = 0; j < pce->num_ele[i]; j++) { |
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76 |
if (i < 3) |
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77 |
put_bits(pb, 1, pce->pairing[i][j]); |
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78 |
put_bits(pb, 4, pce->index[i][j]); |
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79 |
} |
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80 |
} |
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81 |
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82 |
align_put_bits(pb); |
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83 |
put_bits(pb, 8, strlen(aux_data)); |
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84 |
ff_put_string(pb, aux_data, 0); |
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85 |
} |
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86 |
|||
87 |
/** |
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88 |
* Make AAC audio config object. |
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89 |
* @see 1.6.2.1 "Syntax - AudioSpecificConfig" |
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90 |
*/ |
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91 |
11 |
static int put_audio_specific_config(AVCodecContext *avctx) |
|
92 |
{ |
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93 |
PutBitContext pb; |
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94 |
11 |
AACEncContext *s = avctx->priv_data; |
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95 |
11 |
int channels = (!s->needs_pce)*(s->channels - (s->channels == 8 ? 1 : 0)); |
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96 |
11 |
const int max_size = 32; |
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97 |
|||
98 |
11 |
avctx->extradata = av_mallocz(max_size); |
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99 |
✗✓ | 11 |
if (!avctx->extradata) |
100 |
return AVERROR(ENOMEM); |
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101 |
|||
102 |
11 |
init_put_bits(&pb, avctx->extradata, max_size); |
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103 |
11 |
put_bits(&pb, 5, s->profile+1); //profile |
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104 |
11 |
put_bits(&pb, 4, s->samplerate_index); //sample rate index |
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105 |
11 |
put_bits(&pb, 4, channels); |
|
106 |
//GASpecificConfig |
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107 |
11 |
put_bits(&pb, 1, 0); //frame length - 1024 samples |
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108 |
11 |
put_bits(&pb, 1, 0); //does not depend on core coder |
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109 |
11 |
put_bits(&pb, 1, 0); //is not extension |
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110 |
✗✓ | 11 |
if (s->needs_pce) |
111 |
put_pce(&pb, avctx); |
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112 |
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113 |
//Explicitly Mark SBR absent |
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114 |
11 |
put_bits(&pb, 11, 0x2b7); //sync extension |
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115 |
11 |
put_bits(&pb, 5, AOT_SBR); |
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116 |
11 |
put_bits(&pb, 1, 0); |
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117 |
11 |
flush_put_bits(&pb); |
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118 |
11 |
avctx->extradata_size = put_bits_count(&pb) >> 3; |
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119 |
|||
120 |
11 |
return 0; |
|
121 |
} |
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122 |
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123 |
11647 |
void ff_quantize_band_cost_cache_init(struct AACEncContext *s) |
|
124 |
{ |
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125 |
11647 |
++s->quantize_band_cost_cache_generation; |
|
126 |
✗✓ | 11647 |
if (s->quantize_band_cost_cache_generation == 0) { |
127 |
memset(s->quantize_band_cost_cache, 0, sizeof(s->quantize_band_cost_cache)); |
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128 |
s->quantize_band_cost_cache_generation = 1; |
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129 |
} |
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130 |
11647 |
} |
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131 |
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132 |
#define WINDOW_FUNC(type) \ |
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133 |
static void apply_ ##type ##_window(AVFloatDSPContext *fdsp, \ |
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134 |
SingleChannelElement *sce, \ |
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135 |
const float *audio) |
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136 |
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137 |
6899 |
WINDOW_FUNC(only_long) |
|
138 |
{ |
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139 |
✓✓ | 6899 |
const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024; |
140 |
✓✓ | 6899 |
const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024; |
141 |
6899 |
float *out = sce->ret_buf; |
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142 |
|||
143 |
6899 |
fdsp->vector_fmul (out, audio, lwindow, 1024); |
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144 |
6899 |
fdsp->vector_fmul_reverse(out + 1024, audio + 1024, pwindow, 1024); |
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145 |
6899 |
} |
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146 |
|||
147 |
119 |
WINDOW_FUNC(long_start) |
|
148 |
{ |
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149 |
✓✓ | 119 |
const float *lwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024; |
150 |
✗✓ | 119 |
const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128; |
151 |
119 |
float *out = sce->ret_buf; |
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152 |
|||
153 |
119 |
fdsp->vector_fmul(out, audio, lwindow, 1024); |
|
154 |
119 |
memcpy(out + 1024, audio + 1024, sizeof(out[0]) * 448); |
|
155 |
119 |
fdsp->vector_fmul_reverse(out + 1024 + 448, audio + 1024 + 448, swindow, 128); |
|
156 |
119 |
memset(out + 1024 + 576, 0, sizeof(out[0]) * 448); |
|
157 |
119 |
} |
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158 |
|||
159 |
102 |
WINDOW_FUNC(long_stop) |
|
160 |
{ |
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161 |
✓✗ | 102 |
const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024; |
162 |
✗✓ | 102 |
const float *swindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128; |
163 |
102 |
float *out = sce->ret_buf; |
|
164 |
|||
165 |
102 |
memset(out, 0, sizeof(out[0]) * 448); |
|
166 |
102 |
fdsp->vector_fmul(out + 448, audio + 448, swindow, 128); |
|
167 |
102 |
memcpy(out + 576, audio + 576, sizeof(out[0]) * 448); |
|
168 |
102 |
fdsp->vector_fmul_reverse(out + 1024, audio + 1024, lwindow, 1024); |
|
169 |
102 |
} |
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170 |
|||
171 |
164 |
WINDOW_FUNC(eight_short) |
|
172 |
{ |
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173 |
✗✓ | 164 |
const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128; |
174 |
✗✓ | 164 |
const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128; |
175 |
164 |
const float *in = audio + 448; |
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176 |
164 |
float *out = sce->ret_buf; |
|
177 |
int w; |
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178 |
|||
179 |
✓✓ | 1476 |
for (w = 0; w < 8; w++) { |
180 |
✓✓ | 1312 |
fdsp->vector_fmul (out, in, w ? pwindow : swindow, 128); |
181 |
1312 |
out += 128; |
|
182 |
1312 |
in += 128; |
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183 |
1312 |
fdsp->vector_fmul_reverse(out, in, swindow, 128); |
|
184 |
1312 |
out += 128; |
|
185 |
} |
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186 |
164 |
} |
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187 |
|||
188 |
static void (*const apply_window[4])(AVFloatDSPContext *fdsp, |
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189 |
SingleChannelElement *sce, |
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190 |
const float *audio) = { |
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191 |
[ONLY_LONG_SEQUENCE] = apply_only_long_window, |
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192 |
[LONG_START_SEQUENCE] = apply_long_start_window, |
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193 |
[EIGHT_SHORT_SEQUENCE] = apply_eight_short_window, |
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194 |
[LONG_STOP_SEQUENCE] = apply_long_stop_window |
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195 |
}; |
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196 |
|||
197 |
7284 |
static void apply_window_and_mdct(AACEncContext *s, SingleChannelElement *sce, |
|
198 |
float *audio) |
||
199 |
{ |
||
200 |
int i; |
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201 |
7284 |
const float *output = sce->ret_buf; |
|
202 |
|||
203 |
7284 |
apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, audio); |
|
204 |
|||
205 |
✓✓ | 7284 |
if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE) |
206 |
7120 |
s->mdct1024.mdct_calc(&s->mdct1024, sce->coeffs, output); |
|
207 |
else |
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208 |
✓✓ | 1476 |
for (i = 0; i < 1024; i += 128) |
209 |
1312 |
s->mdct128.mdct_calc(&s->mdct128, &sce->coeffs[i], output + i*2); |
|
210 |
7284 |
memcpy(audio, audio + 1024, sizeof(audio[0]) * 1024); |
|
211 |
7284 |
memcpy(sce->pcoeffs, sce->coeffs, sizeof(sce->pcoeffs)); |
|
212 |
7284 |
} |
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213 |
|||
214 |
/** |
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215 |
* Encode ics_info element. |
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216 |
* @see Table 4.6 (syntax of ics_info) |
||
217 |
*/ |
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218 |
6714 |
static void put_ics_info(AACEncContext *s, IndividualChannelStream *info) |
|
219 |
{ |
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220 |
int w; |
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221 |
|||
222 |
6714 |
put_bits(&s->pb, 1, 0); // ics_reserved bit |
|
223 |
6714 |
put_bits(&s->pb, 2, info->window_sequence[0]); |
|
224 |
6714 |
put_bits(&s->pb, 1, info->use_kb_window[0]); |
|
225 |
✓✓ | 6714 |
if (info->window_sequence[0] != EIGHT_SHORT_SEQUENCE) { |
226 |
6527 |
put_bits(&s->pb, 6, info->max_sfb); |
|
227 |
6527 |
put_bits(&s->pb, 1, !!info->predictor_present); |
|
228 |
} else { |
||
229 |
187 |
put_bits(&s->pb, 4, info->max_sfb); |
|
230 |
✓✓ | 1496 |
for (w = 1; w < 8; w++) |
231 |
1309 |
put_bits(&s->pb, 1, !info->group_len[w]); |
|
232 |
} |
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233 |
6714 |
} |
|
234 |
|||
235 |
/** |
||
236 |
* Encode MS data. |
||
237 |
* @see 4.6.8.1 "Joint Coding - M/S Stereo" |
||
238 |
*/ |
||
239 |
5029 |
static void encode_ms_info(PutBitContext *pb, ChannelElement *cpe) |
|
240 |
{ |
||
241 |
int i, w; |
||
242 |
|||
243 |
5029 |
put_bits(pb, 2, cpe->ms_mode); |
|
244 |
✓✓ | 5029 |
if (cpe->ms_mode == 1) |
245 |
✓✓ | 1812 |
for (w = 0; w < cpe->ch[0].ics.num_windows; w += cpe->ch[0].ics.group_len[w]) |
246 |
✓✓ | 40817 |
for (i = 0; i < cpe->ch[0].ics.max_sfb; i++) |
247 |
39892 |
put_bits(pb, 1, cpe->ms_mask[w*16 + i]); |
|
248 |
5029 |
} |
|
249 |
|||
250 |
/** |
||
251 |
* Produce integer coefficients from scalefactors provided by the model. |
||
252 |
*/ |
||
253 |
6469 |
static void adjust_frame_information(ChannelElement *cpe, int chans) |
|
254 |
{ |
||
255 |
int i, w, w2, g, ch; |
||
256 |
int maxsfb, cmaxsfb; |
||
257 |
|||
258 |
✓✓ | 18212 |
for (ch = 0; ch < chans; ch++) { |
259 |
11743 |
IndividualChannelStream *ics = &cpe->ch[ch].ics; |
|
260 |
11743 |
maxsfb = 0; |
|
261 |
11743 |
cpe->ch[ch].pulse.num_pulse = 0; |
|
262 |
✓✓ | 24173 |
for (w = 0; w < ics->num_windows; w += ics->group_len[w]) { |
263 |
✓✓ | 26049 |
for (w2 = 0; w2 < ics->group_len[w]; w2++) { |
264 |
✓✓✓✓ |
41764 |
for (cmaxsfb = ics->num_swb; cmaxsfb > 0 && cpe->ch[ch].zeroes[w*16+cmaxsfb-1]; cmaxsfb--) |
265 |
; |
||
266 |
13619 |
maxsfb = FFMAX(maxsfb, cmaxsfb); |
|
267 |
} |
||
268 |
} |
||
269 |
11743 |
ics->max_sfb = maxsfb; |
|
270 |
|||
271 |
//adjust zero bands for window groups |
||
272 |
✓✓ | 24173 |
for (w = 0; w < ics->num_windows; w += ics->group_len[w]) { |
273 |
✓✓ | 563969 |
for (g = 0; g < ics->max_sfb; g++) { |
274 |
551539 |
i = 1; |
|
275 |
✓✓ | 567030 |
for (w2 = w; w2 < w + ics->group_len[w]; w2++) { |
276 |
✓✓ | 551879 |
if (!cpe->ch[ch].zeroes[w2*16 + g]) { |
277 |
536388 |
i = 0; |
|
278 |
536388 |
break; |
|
279 |
} |
||
280 |
} |
||
281 |
551539 |
cpe->ch[ch].zeroes[w*16 + g] = i; |
|
282 |
} |
||
283 |
} |
||
284 |
} |
||
285 |
|||
286 |
✓✓✓✓ |
6469 |
if (chans > 1 && cpe->common_window) { |
287 |
5029 |
IndividualChannelStream *ics0 = &cpe->ch[0].ics; |
|
288 |
5029 |
IndividualChannelStream *ics1 = &cpe->ch[1].ics; |
|
289 |
5029 |
int msc = 0; |
|
290 |
5029 |
ics0->max_sfb = FFMAX(ics0->max_sfb, ics1->max_sfb); |
|
291 |
5029 |
ics1->max_sfb = ics0->max_sfb; |
|
292 |
✓✓ | 10625 |
for (w = 0; w < ics0->num_windows*16; w += 16) |
293 |
✓✓ | 247534 |
for (i = 0; i < ics0->max_sfb; i++) |
294 |
✓✓ | 241938 |
if (cpe->ms_mask[w+i]) |
295 |
30077 |
msc++; |
|
296 |
✓✓✗✓ |
5029 |
if (msc == 0 || ics0->max_sfb == 0) |
297 |
3749 |
cpe->ms_mode = 0; |
|
298 |
else |
||
299 |
✓✓ | 1280 |
cpe->ms_mode = msc < ics0->max_sfb * ics0->num_windows ? 1 : 2; |
300 |
} |
||
301 |
6469 |
} |
|
302 |
|||
303 |
2355 |
static void apply_intensity_stereo(ChannelElement *cpe) |
|
304 |
{ |
||
305 |
int w, w2, g, i; |
||
306 |
2355 |
IndividualChannelStream *ics = &cpe->ch[0].ics; |
|
307 |
✓✓ | 2355 |
if (!cpe->common_window) |
308 |
1237 |
return; |
|
309 |
✓✓ | 2289 |
for (w = 0; w < ics->num_windows; w += ics->group_len[w]) { |
310 |
✓✓ | 2443 |
for (w2 = 0; w2 < ics->group_len[w]; w2++) { |
311 |
1272 |
int start = (w+w2) * 128; |
|
312 |
✓✓ | 57440 |
for (g = 0; g < ics->num_swb; g++) { |
313 |
56168 |
int p = -1 + 2 * (cpe->ch[1].band_type[w*16+g] - 14); |
|
314 |
56168 |
float scale = cpe->ch[0].is_ener[w*16+g]; |
|
315 |
✓✓ | 56168 |
if (!cpe->is_mask[w*16 + g]) { |
316 |
47882 |
start += ics->swb_sizes[g]; |
|
317 |
47882 |
continue; |
|
318 |
} |
||
319 |
✓✓ | 8286 |
if (cpe->ms_mask[w*16 + g]) |
320 |
2383 |
p *= -1; |
|
321 |
✓✓ | 288446 |
for (i = 0; i < ics->swb_sizes[g]; i++) { |
322 |
280160 |
float sum = (cpe->ch[0].coeffs[start+i] + p*cpe->ch[1].coeffs[start+i])*scale; |
|
323 |
280160 |
cpe->ch[0].coeffs[start+i] = sum; |
|
324 |
280160 |
cpe->ch[1].coeffs[start+i] = 0.0f; |
|
325 |
} |
||
326 |
8286 |
start += ics->swb_sizes[g]; |
|
327 |
} |
||
328 |
} |
||
329 |
} |
||
330 |
} |
||
331 |
|||
332 |
2071 |
static void apply_mid_side_stereo(ChannelElement *cpe) |
|
333 |
{ |
||
334 |
int w, w2, g, i; |
||
335 |
2071 |
IndividualChannelStream *ics = &cpe->ch[0].ics; |
|
336 |
✓✓ | 2071 |
if (!cpe->common_window) |
337 |
1078 |
return; |
|
338 |
✓✓ | 2039 |
for (w = 0; w < ics->num_windows; w += ics->group_len[w]) { |
339 |
✓✓ | 2193 |
for (w2 = 0; w2 < ics->group_len[w]; w2++) { |
340 |
1147 |
int start = (w+w2) * 128; |
|
341 |
✓✓ | 51190 |
for (g = 0; g < ics->num_swb; g++) { |
342 |
/* ms_mask can be used for other purposes in PNS and I/S, |
||
343 |
* so must not apply M/S if any band uses either, even if |
||
344 |
* ms_mask is set. |
||
345 |
*/ |
||
346 |
✓✓✓✗ |
50043 |
if (!cpe->ms_mask[w*16 + g] || cpe->is_mask[w*16 + g] |
347 |
✓✗ | 28910 |
|| cpe->ch[0].band_type[w*16 + g] >= NOISE_BT |
348 |
✗✓ | 28910 |
|| cpe->ch[1].band_type[w*16 + g] >= NOISE_BT) { |
349 |
21133 |
start += ics->swb_sizes[g]; |
|
350 |
21133 |
continue; |
|
351 |
} |
||
352 |
✓✓ | 650946 |
for (i = 0; i < ics->swb_sizes[g]; i++) { |
353 |
622036 |
float L = (cpe->ch[0].coeffs[start+i] + cpe->ch[1].coeffs[start+i]) * 0.5f; |
|
354 |
622036 |
float R = L - cpe->ch[1].coeffs[start+i]; |
|
355 |
622036 |
cpe->ch[0].coeffs[start+i] = L; |
|
356 |
622036 |
cpe->ch[1].coeffs[start+i] = R; |
|
357 |
} |
||
358 |
28910 |
start += ics->swb_sizes[g]; |
|
359 |
} |
||
360 |
} |
||
361 |
} |
||
362 |
} |
||
363 |
|||
364 |
/** |
||
365 |
* Encode scalefactor band coding type. |
||
366 |
*/ |
||
367 |
11743 |
static void encode_band_info(AACEncContext *s, SingleChannelElement *sce) |
|
368 |
{ |
||
369 |
int w; |
||
370 |
|||
371 |
✓✗ | 11743 |
if (s->coder->set_special_band_scalefactors) |
372 |
11743 |
s->coder->set_special_band_scalefactors(s, sce); |
|
373 |
|||
374 |
✓✓ | 24173 |
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) |
375 |
12430 |
s->coder->encode_window_bands_info(s, sce, w, sce->ics.group_len[w], s->lambda); |
|
376 |
11743 |
} |
|
377 |
|||
378 |
/** |
||
379 |
* Encode scalefactors. |
||
380 |
*/ |
||
381 |
11743 |
static void encode_scale_factors(AVCodecContext *avctx, AACEncContext *s, |
|
382 |
SingleChannelElement *sce) |
||
383 |
{ |
||
384 |
11743 |
int diff, off_sf = sce->sf_idx[0], off_pns = sce->sf_idx[0] - NOISE_OFFSET; |
|
385 |
11743 |
int off_is = 0, noise_flag = 1; |
|
386 |
int i, w; |
||
387 |
|||
388 |
✓✓ | 24173 |
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) { |
389 |
✓✓ | 563974 |
for (i = 0; i < sce->ics.max_sfb; i++) { |
390 |
✓✓ | 551544 |
if (!sce->zeroes[w*16 + i]) { |
391 |
✓✓ | 521143 |
if (sce->band_type[w*16 + i] == NOISE_BT) { |
392 |
17340 |
diff = sce->sf_idx[w*16 + i] - off_pns; |
|
393 |
17340 |
off_pns = sce->sf_idx[w*16 + i]; |
|
394 |
✓✓ | 17340 |
if (noise_flag-- > 0) { |
395 |
2242 |
put_bits(&s->pb, NOISE_PRE_BITS, diff + NOISE_PRE); |
|
396 |
2242 |
continue; |
|
397 |
} |
||
398 |
✓✓ | 503803 |
} else if (sce->band_type[w*16 + i] == INTENSITY_BT || |
399 |
✓✓ | 497850 |
sce->band_type[w*16 + i] == INTENSITY_BT2) { |
400 |
8191 |
diff = sce->sf_idx[w*16 + i] - off_is; |
|
401 |
8191 |
off_is = sce->sf_idx[w*16 + i]; |
|
402 |
} else { |
||
403 |
495612 |
diff = sce->sf_idx[w*16 + i] - off_sf; |
|
404 |
495612 |
off_sf = sce->sf_idx[w*16 + i]; |
|
405 |
} |
||
406 |
518901 |
diff += SCALE_DIFF_ZERO; |
|
407 |
✓✗✗✓ |
518901 |
av_assert0(diff >= 0 && diff <= 120); |
408 |
518901 |
put_bits(&s->pb, ff_aac_scalefactor_bits[diff], ff_aac_scalefactor_code[diff]); |
|
409 |
} |
||
410 |
} |
||
411 |
} |
||
412 |
11743 |
} |
|
413 |
|||
414 |
/** |
||
415 |
* Encode pulse data. |
||
416 |
*/ |
||
417 |
11743 |
static void encode_pulses(AACEncContext *s, Pulse *pulse) |
|
418 |
{ |
||
419 |
int i; |
||
420 |
|||
421 |
11743 |
put_bits(&s->pb, 1, !!pulse->num_pulse); |
|
422 |
✓✗ | 11743 |
if (!pulse->num_pulse) |
423 |
11743 |
return; |
|
424 |
|||
425 |
put_bits(&s->pb, 2, pulse->num_pulse - 1); |
||
426 |
put_bits(&s->pb, 6, pulse->start); |
||
427 |
for (i = 0; i < pulse->num_pulse; i++) { |
||
428 |
put_bits(&s->pb, 5, pulse->pos[i]); |
||
429 |
put_bits(&s->pb, 4, pulse->amp[i]); |
||
430 |
} |
||
431 |
} |
||
432 |
|||
433 |
/** |
||
434 |
* Encode spectral coefficients processed by psychoacoustic model. |
||
435 |
*/ |
||
436 |
11743 |
static void encode_spectral_coeffs(AACEncContext *s, SingleChannelElement *sce) |
|
437 |
{ |
||
438 |
int start, i, w, w2; |
||
439 |
|||
440 |
✓✓ | 24173 |
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) { |
441 |
12430 |
start = 0; |
|
442 |
✓✓ | 563974 |
for (i = 0; i < sce->ics.max_sfb; i++) { |
443 |
✓✓ | 551544 |
if (sce->zeroes[w*16 + i]) { |
444 |
30401 |
start += sce->ics.swb_sizes[i]; |
|
445 |
30401 |
continue; |
|
446 |
} |
||
447 |
✓✓ | 1050888 |
for (w2 = w; w2 < w + sce->ics.group_len[w]; w2++) { |
448 |
529745 |
s->coder->quantize_and_encode_band(s, &s->pb, |
|
449 |
529745 |
&sce->coeffs[start + w2*128], |
|
450 |
529745 |
NULL, sce->ics.swb_sizes[i], |
|
451 |
529745 |
sce->sf_idx[w*16 + i], |
|
452 |
529745 |
sce->band_type[w*16 + i], |
|
453 |
s->lambda, |
||
454 |
529745 |
sce->ics.window_clipping[w]); |
|
455 |
} |
||
456 |
521143 |
start += sce->ics.swb_sizes[i]; |
|
457 |
} |
||
458 |
} |
||
459 |
11743 |
} |
|
460 |
|||
461 |
/** |
||
462 |
* Downscale spectral coefficients for near-clipping windows to avoid artifacts |
||
463 |
*/ |
||
464 |
7284 |
static void avoid_clipping(AACEncContext *s, SingleChannelElement *sce) |
|
465 |
{ |
||
466 |
int start, i, j, w; |
||
467 |
|||
468 |
✓✓ | 7284 |
if (sce->ics.clip_avoidance_factor < 1.0f) { |
469 |
✓✓ | 392 |
for (w = 0; w < sce->ics.num_windows; w++) { |
470 |
224 |
start = 0; |
|
471 |
✓✓ | 8645 |
for (i = 0; i < sce->ics.max_sfb; i++) { |
472 |
8421 |
float *swb_coeffs = &sce->coeffs[start + w*128]; |
|
473 |
✓✓ | 167173 |
for (j = 0; j < sce->ics.swb_sizes[i]; j++) |
474 |
158752 |
swb_coeffs[j] *= sce->ics.clip_avoidance_factor; |
|
475 |
8421 |
start += sce->ics.swb_sizes[i]; |
|
476 |
} |
||
477 |
} |
||
478 |
} |
||
479 |
7284 |
} |
|
480 |
|||
481 |
/** |
||
482 |
* Encode one channel of audio data. |
||
483 |
*/ |
||
484 |
11743 |
static int encode_individual_channel(AVCodecContext *avctx, AACEncContext *s, |
|
485 |
SingleChannelElement *sce, |
||
486 |
int common_window) |
||
487 |
{ |
||
488 |
11743 |
put_bits(&s->pb, 8, sce->sf_idx[0]); |
|
489 |
✓✓ | 11743 |
if (!common_window) { |
490 |
1685 |
put_ics_info(s, &sce->ics); |
|
491 |
✓✗ | 1685 |
if (s->coder->encode_main_pred) |
492 |
1685 |
s->coder->encode_main_pred(s, sce); |
|
493 |
✓✗ | 1685 |
if (s->coder->encode_ltp_info) |
494 |
1685 |
s->coder->encode_ltp_info(s, sce, 0); |
|
495 |
} |
||
496 |
11743 |
encode_band_info(s, sce); |
|
497 |
11743 |
encode_scale_factors(avctx, s, sce); |
|
498 |
11743 |
encode_pulses(s, &sce->pulse); |
|
499 |
11743 |
put_bits(&s->pb, 1, !!sce->tns.present); |
|
500 |
✓✗ | 11743 |
if (s->coder->encode_tns_info) |
501 |
11743 |
s->coder->encode_tns_info(s, sce); |
|
502 |
11743 |
put_bits(&s->pb, 1, 0); //ssr |
|
503 |
11743 |
encode_spectral_coeffs(s, sce); |
|
504 |
11743 |
return 0; |
|
505 |
} |
||
506 |
|||
507 |
/** |
||
508 |
* Write some auxiliary information about the created AAC file. |
||
509 |
*/ |
||
510 |
static void put_bitstream_info(AACEncContext *s, const char *name) |
||
511 |
{ |
||
512 |
int i, namelen, padbits; |
||
513 |
|||
514 |
namelen = strlen(name) + 2; |
||
515 |
put_bits(&s->pb, 3, TYPE_FIL); |
||
516 |
put_bits(&s->pb, 4, FFMIN(namelen, 15)); |
||
517 |
if (namelen >= 15) |
||
518 |
put_bits(&s->pb, 8, namelen - 14); |
||
519 |
put_bits(&s->pb, 4, 0); //extension type - filler |
||
520 |
padbits = -put_bits_count(&s->pb) & 7; |
||
521 |
align_put_bits(&s->pb); |
||
522 |
for (i = 0; i < namelen - 2; i++) |
||
523 |
put_bits(&s->pb, 8, name[i]); |
||
524 |
put_bits(&s->pb, 12 - padbits, 0); |
||
525 |
} |
||
526 |
|||
527 |
/* |
||
528 |
* Copy input samples. |
||
529 |
* Channels are reordered from libavcodec's default order to AAC order. |
||
530 |
*/ |
||
531 |
3816 |
static void copy_input_samples(AACEncContext *s, const AVFrame *frame) |
|
532 |
{ |
||
533 |
int ch; |
||
534 |
✓✓ | 3816 |
int end = 2048 + (frame ? frame->nb_samples : 0); |
535 |
3816 |
const uint8_t *channel_map = s->reorder_map; |
|
536 |
|||
537 |
/* copy and remap input samples */ |
||
538 |
✓✓ | 11125 |
for (ch = 0; ch < s->channels; ch++) { |
539 |
/* copy last 1024 samples of previous frame to the start of the current frame */ |
||
540 |
7309 |
memcpy(&s->planar_samples[ch][1024], &s->planar_samples[ch][2048], 1024 * sizeof(s->planar_samples[0][0])); |
|
541 |
|||
542 |
/* copy new samples and zero any remaining samples */ |
||
543 |
✓✓ | 7309 |
if (frame) { |
544 |
7259 |
memcpy(&s->planar_samples[ch][2048], |
|
545 |
7259 |
frame->extended_data[channel_map[ch]], |
|
546 |
7259 |
frame->nb_samples * sizeof(s->planar_samples[0][0])); |
|
547 |
} |
||
548 |
7309 |
memset(&s->planar_samples[ch][end], 0, |
|
549 |
7309 |
(3072 - end) * sizeof(s->planar_samples[0][0])); |
|
550 |
} |
||
551 |
3816 |
} |
|
552 |
|||
553 |
3827 |
static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, |
|
554 |
const AVFrame *frame, int *got_packet_ptr) |
||
555 |
{ |
||
556 |
3827 |
AACEncContext *s = avctx->priv_data; |
|
557 |
3827 |
float **samples = s->planar_samples, *samples2, *la, *overlap; |
|
558 |
ChannelElement *cpe; |
||
559 |
SingleChannelElement *sce; |
||
560 |
IndividualChannelStream *ics; |
||
561 |
int i, its, ch, w, chans, tag, start_ch, ret, frame_bits; |
||
562 |
int target_bits, rate_bits, too_many_bits, too_few_bits; |
||
563 |
3827 |
int ms_mode = 0, is_mode = 0, tns_mode = 0, pred_mode = 0; |
|
564 |
int chan_el_counter[4]; |
||
565 |
FFPsyWindowInfo windows[AAC_MAX_CHANNELS]; |
||
566 |
|||
567 |
/* add current frame to queue */ |
||
568 |
✓✓ | 3827 |
if (frame) { |
569 |
✗✓ | 3794 |
if ((ret = ff_af_queue_add(&s->afq, frame)) < 0) |
570 |
return ret; |
||
571 |
} else { |
||
572 |
✓✓✗✓ ✗✗ |
33 |
if (!s->afq.remaining_samples || (!s->afq.frame_alloc && !s->afq.frame_count)) |
573 |
11 |
return 0; |
|
574 |
} |
||
575 |
|||
576 |
3816 |
copy_input_samples(s, frame); |
|
577 |
✓✗ | 3816 |
if (s->psypp) |
578 |
3816 |
ff_psy_preprocess(s->psypp, s->planar_samples, s->channels); |
|
579 |
|||
580 |
✓✓ | 3816 |
if (!avctx->frame_number) |
581 |
11 |
return 0; |
|
582 |
|||
583 |
3805 |
start_ch = 0; |
|
584 |
✓✓ | 7754 |
for (i = 0; i < s->chan_map[0]; i++) { |
585 |
3949 |
FFPsyWindowInfo* wi = windows + start_ch; |
|
586 |
3949 |
tag = s->chan_map[i+1]; |
|
587 |
✓✓ | 3949 |
chans = tag == TYPE_CPE ? 2 : 1; |
588 |
3949 |
cpe = &s->cpe[i]; |
|
589 |
✓✓ | 11233 |
for (ch = 0; ch < chans; ch++) { |
590 |
int k; |
||
591 |
float clip_avoidance_factor; |
||
592 |
7284 |
sce = &cpe->ch[ch]; |
|
593 |
7284 |
ics = &sce->ics; |
|
594 |
7284 |
s->cur_channel = start_ch + ch; |
|
595 |
7284 |
overlap = &samples[s->cur_channel][0]; |
|
596 |
7284 |
samples2 = overlap + 1024; |
|
597 |
7284 |
la = samples2 + (448+64); |
|
598 |
✓✓ | 7284 |
if (!frame) |
599 |
50 |
la = NULL; |
|
600 |
✓✓ | 7284 |
if (tag == TYPE_LFE) { |
601 |
48 |
wi[ch].window_type[0] = wi[ch].window_type[1] = ONLY_LONG_SEQUENCE; |
|
602 |
48 |
wi[ch].window_shape = 0; |
|
603 |
48 |
wi[ch].num_windows = 1; |
|
604 |
48 |
wi[ch].grouping[0] = 1; |
|
605 |
48 |
wi[ch].clipping[0] = 0; |
|
606 |
|||
607 |
/* Only the lowest 12 coefficients are used in a LFE channel. |
||
608 |
* The expression below results in only the bottom 8 coefficients |
||
609 |
* being used for 11.025kHz to 16kHz sample rates. |
||
610 |
*/ |
||
611 |
✗✓ | 48 |
ics->num_swb = s->samplerate_index >= 8 ? 1 : 3; |
612 |
} else { |
||
613 |
7236 |
wi[ch] = s->psy.model->window(&s->psy, samples2, la, s->cur_channel, |
|
614 |
7236 |
ics->window_sequence[0]); |
|
615 |
} |
||
616 |
7284 |
ics->window_sequence[1] = ics->window_sequence[0]; |
|
617 |
7284 |
ics->window_sequence[0] = wi[ch].window_type[0]; |
|
618 |
7284 |
ics->use_kb_window[1] = ics->use_kb_window[0]; |
|
619 |
7284 |
ics->use_kb_window[0] = wi[ch].window_shape; |
|
620 |
7284 |
ics->num_windows = wi[ch].num_windows; |
|
621 |
✓✓ | 7284 |
ics->swb_sizes = s->psy.bands [ics->num_windows == 8]; |
622 |
✓✓✓✓ |
7284 |
ics->num_swb = tag == TYPE_LFE ? ics->num_swb : s->psy.num_bands[ics->num_windows == 8]; |
623 |
7284 |
ics->max_sfb = FFMIN(ics->max_sfb, ics->num_swb); |
|
624 |
14568 |
ics->swb_offset = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ? |
|
625 |
✓✓ | 7284 |
ff_swb_offset_128 [s->samplerate_index]: |
626 |
7120 |
ff_swb_offset_1024[s->samplerate_index]; |
|
627 |
14568 |
ics->tns_max_bands = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ? |
|
628 |
✓✓ | 7284 |
ff_tns_max_bands_128 [s->samplerate_index]: |
629 |
7120 |
ff_tns_max_bands_1024[s->samplerate_index]; |
|
630 |
|||
631 |
✓✓ | 15716 |
for (w = 0; w < ics->num_windows; w++) |
632 |
8432 |
ics->group_len[w] = wi[ch].grouping[w]; |
|
633 |
|||
634 |
/* Calculate input sample maximums and evaluate clipping risk */ |
||
635 |
7284 |
clip_avoidance_factor = 0.0f; |
|
636 |
✓✓ | 15716 |
for (w = 0; w < ics->num_windows; w++) { |
637 |
8432 |
const float *wbuf = overlap + w * 128; |
|
638 |
8432 |
const int wlen = 2048 / ics->num_windows; |
|
639 |
8432 |
float max = 0; |
|
640 |
int j; |
||
641 |
/* mdct input is 2 * output */ |
||
642 |
✓✓ | 14926064 |
for (j = 0; j < wlen; j++) |
643 |
✓✓ | 14917632 |
max = FFMAX(max, fabsf(wbuf[j])); |
644 |
8432 |
wi[ch].clipping[w] = max; |
|
645 |
} |
||
646 |
✓✓ | 15716 |
for (w = 0; w < ics->num_windows; w++) { |
647 |
✓✓ | 8432 |
if (wi[ch].clipping[w] > CLIP_AVOIDANCE_FACTOR) { |
648 |
176 |
ics->window_clipping[w] = 1; |
|
649 |
✗✓ | 176 |
clip_avoidance_factor = FFMAX(clip_avoidance_factor, wi[ch].clipping[w]); |
650 |
} else { |
||
651 |
8256 |
ics->window_clipping[w] = 0; |
|
652 |
} |
||
653 |
} |
||
654 |
✓✓ | 7284 |
if (clip_avoidance_factor > CLIP_AVOIDANCE_FACTOR) { |
655 |
168 |
ics->clip_avoidance_factor = CLIP_AVOIDANCE_FACTOR / clip_avoidance_factor; |
|
656 |
} else { |
||
657 |
7116 |
ics->clip_avoidance_factor = 1.0f; |
|
658 |
} |
||
659 |
|||
660 |
7284 |
apply_window_and_mdct(s, sce, overlap); |
|
661 |
|||
662 |
✗✓✗✗ |
7284 |
if (s->options.ltp && s->coder->update_ltp) { |
663 |
s->coder->update_ltp(s, sce); |
||
664 |
apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, &sce->ltp_state[0]); |
||
665 |
s->mdct1024.mdct_calc(&s->mdct1024, sce->lcoeffs, sce->ret_buf); |
||
666 |
} |
||
667 |
|||
668 |
✓✓ | 7466100 |
for (k = 0; k < 1024; k++) { |
669 |
✗✓ | 7458816 |
if (!(fabs(cpe->ch[ch].coeffs[k]) < 1E16)) { // Ensure headroom for energy calculation |
670 |
av_log(avctx, AV_LOG_ERROR, "Input contains (near) NaN/+-Inf\n"); |
||
671 |
return AVERROR(EINVAL); |
||
672 |
} |
||
673 |
} |
||
674 |
7284 |
avoid_clipping(s, sce); |
|
675 |
} |
||
676 |
3949 |
start_ch += chans; |
|
677 |
} |
||
678 |
✗✓ | 3805 |
if ((ret = ff_alloc_packet2(avctx, avpkt, 8192 * s->channels, 0)) < 0) |
679 |
return ret; |
||
680 |
3805 |
frame_bits = its = 0; |
|
681 |
do { |
||
682 |
6253 |
init_put_bits(&s->pb, avpkt->data, avpkt->size); |
|
683 |
|||
684 |
✓✓✗✓ |
6253 |
if ((avctx->frame_number & 0xFF)==1 && !(avctx->flags & AV_CODEC_FLAG_BITEXACT)) |
685 |
put_bitstream_info(s, LIBAVCODEC_IDENT); |
||
686 |
6253 |
start_ch = 0; |
|
687 |
6253 |
target_bits = 0; |
|
688 |
6253 |
memset(chan_el_counter, 0, sizeof(chan_el_counter)); |
|
689 |
✓✓ | 12722 |
for (i = 0; i < s->chan_map[0]; i++) { |
690 |
6469 |
FFPsyWindowInfo* wi = windows + start_ch; |
|
691 |
const float *coeffs[2]; |
||
692 |
6469 |
tag = s->chan_map[i+1]; |
|
693 |
✓✓ | 6469 |
chans = tag == TYPE_CPE ? 2 : 1; |
694 |
6469 |
cpe = &s->cpe[i]; |
|
695 |
6469 |
cpe->common_window = 0; |
|
696 |
6469 |
memset(cpe->is_mask, 0, sizeof(cpe->is_mask)); |
|
697 |
6469 |
memset(cpe->ms_mask, 0, sizeof(cpe->ms_mask)); |
|
698 |
6469 |
put_bits(&s->pb, 3, tag); |
|
699 |
6469 |
put_bits(&s->pb, 4, chan_el_counter[tag]++); |
|
700 |
✓✓ | 18212 |
for (ch = 0; ch < chans; ch++) { |
701 |
11743 |
sce = &cpe->ch[ch]; |
|
702 |
11743 |
coeffs[ch] = sce->coeffs; |
|
703 |
11743 |
sce->ics.predictor_present = 0; |
|
704 |
11743 |
sce->ics.ltp.present = 0; |
|
705 |
11743 |
memset(sce->ics.ltp.used, 0, sizeof(sce->ics.ltp.used)); |
|
706 |
11743 |
memset(sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used)); |
|
707 |
11743 |
memset(&sce->tns, 0, sizeof(TemporalNoiseShaping)); |
|
708 |
✓✓ | 1514847 |
for (w = 0; w < 128; w++) |
709 |
✓✓ | 1503104 |
if (sce->band_type[w] > RESERVED_BT) |
710 |
25469 |
sce->band_type[w] = 0; |
|
711 |
} |
||
712 |
6469 |
s->psy.bitres.alloc = -1; |
|
713 |
6469 |
s->psy.bitres.bits = s->last_frame_pb_count / s->channels; |
|
714 |
6469 |
s->psy.model->analyze(&s->psy, start_ch, coeffs, wi); |
|
715 |
✓✗ | 6469 |
if (s->psy.bitres.alloc > 0) { |
716 |
/* Lambda unused here on purpose, we need to take psy's unscaled allocation */ |
||
717 |
12938 |
target_bits += s->psy.bitres.alloc |
|
718 |
✗✓ | 6469 |
* (s->lambda / (avctx->global_quality ? avctx->global_quality : 120)); |
719 |
6469 |
s->psy.bitres.alloc /= chans; |
|
720 |
} |
||
721 |
6469 |
s->cur_type = tag; |
|
722 |
✓✓ | 18212 |
for (ch = 0; ch < chans; ch++) { |
723 |
11743 |
s->cur_channel = start_ch + ch; |
|
724 |
✓✓✓✗ |
11743 |
if (s->options.pns && s->coder->mark_pns) |
725 |
3515 |
s->coder->mark_pns(s, avctx, &cpe->ch[ch]); |
|
726 |
11743 |
s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda); |
|
727 |
} |
||
728 |
✓✓ | 6469 |
if (chans > 1 |
729 |
✓✓ | 5274 |
&& wi[0].window_type[0] == wi[1].window_type[0] |
730 |
✓✗ | 5038 |
&& wi[0].window_shape == wi[1].window_shape) { |
731 |
|||
732 |
5038 |
cpe->common_window = 1; |
|
733 |
✓✓ | 10634 |
for (w = 0; w < wi[0].num_windows; w++) { |
734 |
✓✓ | 5605 |
if (wi[0].grouping[w] != wi[1].grouping[w]) { |
735 |
9 |
cpe->common_window = 0; |
|
736 |
9 |
break; |
|
737 |
} |
||
738 |
} |
||
739 |
} |
||
740 |
✓✓ | 18212 |
for (ch = 0; ch < chans; ch++) { /* TNS and PNS */ |
741 |
11743 |
sce = &cpe->ch[ch]; |
|
742 |
11743 |
s->cur_channel = start_ch + ch; |
|
743 |
✓✓✓✗ |
11743 |
if (s->options.tns && s->coder->search_for_tns) |
744 |
3515 |
s->coder->search_for_tns(s, sce); |
|
745 |
✓✓✓✗ |
11743 |
if (s->options.tns && s->coder->apply_tns_filt) |
746 |
3515 |
s->coder->apply_tns_filt(s, sce); |
|
747 |
✓✓ | 11743 |
if (sce->tns.present) |
748 |
46 |
tns_mode = 1; |
|
749 |
✓✓✓✗ |
11743 |
if (s->options.pns && s->coder->search_for_pns) |
750 |
3515 |
s->coder->search_for_pns(s, avctx, sce); |
|
751 |
} |
||
752 |
6469 |
s->cur_channel = start_ch; |
|
753 |
✓✓ | 6469 |
if (s->options.intensity_stereo) { /* Intensity Stereo */ |
754 |
✓✗ | 2355 |
if (s->coder->search_for_is) |
755 |
2355 |
s->coder->search_for_is(s, avctx, cpe); |
|
756 |
✓✓ | 2355 |
if (cpe->is_mode) is_mode = 1; |
757 |
2355 |
apply_intensity_stereo(cpe); |
|
758 |
} |
||
759 |
✓✓ | 6469 |
if (s->options.pred) { /* Prediction */ |
760 |
✓✓ | 1248 |
for (ch = 0; ch < chans; ch++) { |
761 |
832 |
sce = &cpe->ch[ch]; |
|
762 |
832 |
s->cur_channel = start_ch + ch; |
|
763 |
✓✗✓✗ |
832 |
if (s->options.pred && s->coder->search_for_pred) |
764 |
832 |
s->coder->search_for_pred(s, sce); |
|
765 |
✓✓ | 832 |
if (cpe->ch[ch].ics.predictor_present) pred_mode = 1; |
766 |
} |
||
767 |
✓✗ | 416 |
if (s->coder->adjust_common_pred) |
768 |
416 |
s->coder->adjust_common_pred(s, cpe); |
|
769 |
✓✓ | 1248 |
for (ch = 0; ch < chans; ch++) { |
770 |
832 |
sce = &cpe->ch[ch]; |
|
771 |
832 |
s->cur_channel = start_ch + ch; |
|
772 |
✓✗✓✗ |
832 |
if (s->options.pred && s->coder->apply_main_pred) |
773 |
832 |
s->coder->apply_main_pred(s, sce); |
|
774 |
} |
||
775 |
416 |
s->cur_channel = start_ch; |
|
776 |
} |
||
777 |
✓✓ | 6469 |
if (s->options.mid_side) { /* Mid/Side stereo */ |
778 |
✓✓✓✗ |
2071 |
if (s->options.mid_side == -1 && s->coder->search_for_ms) |
779 |
1651 |
s->coder->search_for_ms(s, cpe); |
|
780 |
✓✓ | 420 |
else if (cpe->common_window) |
781 |
393 |
memset(cpe->ms_mask, 1, sizeof(cpe->ms_mask)); |
|
782 |
2071 |
apply_mid_side_stereo(cpe); |
|
783 |
} |
||
784 |
6469 |
adjust_frame_information(cpe, chans); |
|
785 |
✗✓ | 6469 |
if (s->options.ltp) { /* LTP */ |
786 |
for (ch = 0; ch < chans; ch++) { |
||
787 |
sce = &cpe->ch[ch]; |
||
788 |
s->cur_channel = start_ch + ch; |
||
789 |
if (s->coder->search_for_ltp) |
||
790 |
s->coder->search_for_ltp(s, sce, cpe->common_window); |
||
791 |
if (sce->ics.ltp.present) pred_mode = 1; |
||
792 |
} |
||
793 |
s->cur_channel = start_ch; |
||
794 |
if (s->coder->adjust_common_ltp) |
||
795 |
s->coder->adjust_common_ltp(s, cpe); |
||
796 |
} |
||
797 |
✓✓ | 6469 |
if (chans == 2) { |
798 |
5274 |
put_bits(&s->pb, 1, cpe->common_window); |
|
799 |
✓✓ | 5274 |
if (cpe->common_window) { |
800 |
5029 |
put_ics_info(s, &cpe->ch[0].ics); |
|
801 |
✓✗ | 5029 |
if (s->coder->encode_main_pred) |
802 |
5029 |
s->coder->encode_main_pred(s, &cpe->ch[0]); |
|
803 |
✓✗ | 5029 |
if (s->coder->encode_ltp_info) |
804 |
5029 |
s->coder->encode_ltp_info(s, &cpe->ch[0], 1); |
|
805 |
5029 |
encode_ms_info(&s->pb, cpe); |
|
806 |
✓✓ | 5029 |
if (cpe->ms_mode) ms_mode = 1; |
807 |
} |
||
808 |
} |
||
809 |
✓✓ | 18212 |
for (ch = 0; ch < chans; ch++) { |
810 |
11743 |
s->cur_channel = start_ch + ch; |
|
811 |
11743 |
encode_individual_channel(avctx, s, &cpe->ch[ch], cpe->common_window); |
|
812 |
} |
||
813 |
6469 |
start_ch += chans; |
|
814 |
} |
||
815 |
|||
816 |
✗✓ | 6253 |
if (avctx->flags & AV_CODEC_FLAG_QSCALE) { |
817 |
/* When using a constant Q-scale, don't mess with lambda */ |
||
818 |
break; |
||
819 |
} |
||
820 |
|||
821 |
/* rate control stuff |
||
822 |
* allow between the nominal bitrate, and what psy's bit reservoir says to target |
||
823 |
* but drift towards the nominal bitrate always |
||
824 |
*/ |
||
825 |
6253 |
frame_bits = put_bits_count(&s->pb); |
|
826 |
6253 |
rate_bits = avctx->bit_rate * 1024 / avctx->sample_rate; |
|
827 |
✗✓ | 6253 |
rate_bits = FFMIN(rate_bits, 6144 * s->channels - 3); |
828 |
6253 |
too_many_bits = FFMAX(target_bits, rate_bits); |
|
829 |
✓✓ | 6253 |
too_many_bits = FFMIN(too_many_bits, 6144 * s->channels - 3); |
830 |
6253 |
too_few_bits = FFMIN(FFMAX(rate_bits - rate_bits/4, target_bits), too_many_bits); |
|
831 |
|||
832 |
/* When using ABR, be strict (but only for increasing) */ |
||
833 |
6253 |
too_few_bits = too_few_bits - too_few_bits/8; |
|
834 |
6253 |
too_many_bits = too_many_bits + too_many_bits/2; |
|
835 |
|||
836 |
✓✓ | 6253 |
if ( its == 0 /* for steady-state Q-scale tracking */ |
837 |
✓✓✓✓ ✓✓ |
2448 |
|| (its < 5 && (frame_bits < too_few_bits || frame_bits > too_many_bits)) |
838 |
✗✓ | 497 |
|| frame_bits >= 6144 * s->channels - 3 ) |
839 |
{ |
||
840 |
5756 |
float ratio = ((float)rate_bits) / frame_bits; |
|
841 |
|||
842 |
✓✓✓✓ |
5756 |
if (frame_bits >= too_few_bits && frame_bits <= too_many_bits) { |
843 |
/* |
||
844 |
* This path is for steady-state Q-scale tracking |
||
845 |
* When frame bits fall within the stable range, we still need to adjust |
||
846 |
* lambda to maintain it like so in a stable fashion (large jumps in lambda |
||
847 |
* create artifacts and should be avoided), but slowly |
||
848 |
*/ |
||
849 |
2859 |
ratio = sqrtf(sqrtf(ratio)); |
|
850 |
2859 |
ratio = av_clipf(ratio, 0.9f, 1.1f); |
|
851 |
} else { |
||
852 |
/* Not so fast though */ |
||
853 |
2897 |
ratio = sqrtf(ratio); |
|
854 |
} |
||
855 |
✓✓ | 5756 |
s->lambda = FFMIN(s->lambda * ratio, 65536.f); |
856 |
|||
857 |
/* Keep iterating if we must reduce and lambda is in the sky */ |
||
858 |
✓✓✓✓ |
5756 |
if (ratio > 0.9f && ratio < 1.1f) { |
859 |
break; |
||
860 |
} else { |
||
861 |
✓✓✓✓ ✓✗✗✓ |
2448 |
if (is_mode || ms_mode || tns_mode || pred_mode) { |
862 |
✓✓ | 1027 |
for (i = 0; i < s->chan_map[0]; i++) { |
863 |
// Must restore coeffs |
||
864 |
✓✓ | 521 |
chans = tag == TYPE_CPE ? 2 : 1; |
865 |
521 |
cpe = &s->cpe[i]; |
|
866 |
✓✓ | 1543 |
for (ch = 0; ch < chans; ch++) |
867 |
1022 |
memcpy(cpe->ch[ch].coeffs, cpe->ch[ch].pcoeffs, sizeof(cpe->ch[ch].coeffs)); |
|
868 |
} |
||
869 |
} |
||
870 |
2448 |
its++; |
|
871 |
} |
||
872 |
} else { |
||
873 |
break; |
||
874 |
} |
||
875 |
} while (1); |
||
876 |
|||
877 |
✗✓✗✗ |
3805 |
if (s->options.ltp && s->coder->ltp_insert_new_frame) |
878 |
s->coder->ltp_insert_new_frame(s); |
||
879 |
|||
880 |
3805 |
put_bits(&s->pb, 3, TYPE_END); |
|
881 |
3805 |
flush_put_bits(&s->pb); |
|
882 |
|||
883 |
3805 |
s->last_frame_pb_count = put_bits_count(&s->pb); |
|
884 |
|||
885 |
3805 |
s->lambda_sum += s->lambda; |
|
886 |
3805 |
s->lambda_count++; |
|
887 |
|||
888 |
3805 |
ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts, |
|
889 |
&avpkt->duration); |
||
890 |
|||
891 |
3805 |
avpkt->size = put_bits_count(&s->pb) >> 3; |
|
892 |
3805 |
*got_packet_ptr = 1; |
|
893 |
3805 |
return 0; |
|
894 |
} |
||
895 |
|||
896 |
11 |
static av_cold int aac_encode_end(AVCodecContext *avctx) |
|
897 |
{ |
||
898 |
11 |
AACEncContext *s = avctx->priv_data; |
|
899 |
|||
900 |
11 |
av_log(avctx, AV_LOG_INFO, "Qavg: %.3f\n", s->lambda_sum / s->lambda_count); |
|
901 |
|||
902 |
11 |
ff_mdct_end(&s->mdct1024); |
|
903 |
11 |
ff_mdct_end(&s->mdct128); |
|
904 |
11 |
ff_psy_end(&s->psy); |
|
905 |
11 |
ff_lpc_end(&s->lpc); |
|
906 |
✓✗ | 11 |
if (s->psypp) |
907 |
11 |
ff_psy_preprocess_end(s->psypp); |
|
908 |
11 |
av_freep(&s->buffer.samples); |
|
909 |
11 |
av_freep(&s->cpe); |
|
910 |
11 |
av_freep(&s->fdsp); |
|
911 |
11 |
ff_af_queue_close(&s->afq); |
|
912 |
11 |
return 0; |
|
913 |
} |
||
914 |
|||
915 |
11 |
static av_cold int dsp_init(AVCodecContext *avctx, AACEncContext *s) |
|
916 |
{ |
||
917 |
11 |
int ret = 0; |
|
918 |
|||
919 |
11 |
s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT); |
|
920 |
✗✓ | 11 |
if (!s->fdsp) |
921 |
return AVERROR(ENOMEM); |
||
922 |
|||
923 |
// window init |
||
924 |
11 |
ff_aac_float_common_init(); |
|
925 |
|||
926 |
✗✓ | 11 |
if ((ret = ff_mdct_init(&s->mdct1024, 11, 0, 32768.0)) < 0) |
927 |
return ret; |
||
928 |
✗✓ | 11 |
if ((ret = ff_mdct_init(&s->mdct128, 8, 0, 32768.0)) < 0) |
929 |
return ret; |
||
930 |
|||
931 |
11 |
return 0; |
|
932 |
} |
||
933 |
|||
934 |
11 |
static av_cold int alloc_buffers(AVCodecContext *avctx, AACEncContext *s) |
|
935 |
{ |
||
936 |
int ch; |
||
937 |
✓✗ | 11 |
if (!FF_ALLOCZ_TYPED_ARRAY(s->buffer.samples, s->channels * 3 * 1024) || |
938 |
✗✓ | 11 |
!FF_ALLOCZ_TYPED_ARRAY(s->cpe, s->chan_map[0])) |
939 |
return AVERROR(ENOMEM); |
||
940 |
|||
941 |
✓✓ | 36 |
for(ch = 0; ch < s->channels; ch++) |
942 |
25 |
s->planar_samples[ch] = s->buffer.samples + 3 * 1024 * ch; |
|
943 |
|||
944 |
11 |
return 0; |
|
945 |
} |
||
946 |
|||
947 |
11 |
static av_cold int aac_encode_init(AVCodecContext *avctx) |
|
948 |
{ |
||
949 |
11 |
AACEncContext *s = avctx->priv_data; |
|
950 |
11 |
int i, ret = 0; |
|
951 |
const uint8_t *sizes[2]; |
||
952 |
uint8_t grouping[AAC_MAX_CHANNELS]; |
||
953 |
int lengths[2]; |
||
954 |
|||
955 |
/* Constants */ |
||
956 |
11 |
s->last_frame_pb_count = 0; |
|
957 |
11 |
avctx->frame_size = 1024; |
|
958 |
11 |
avctx->initial_padding = 1024; |
|
959 |
✗✓ | 11 |
s->lambda = avctx->global_quality > 0 ? avctx->global_quality : 120; |
960 |
|||
961 |
/* Channel map and unspecified bitrate guessing */ |
||
962 |
11 |
s->channels = avctx->channels; |
|
963 |
|||
964 |
11 |
s->needs_pce = 1; |
|
965 |
✓✗ | 25 |
for (i = 0; i < FF_ARRAY_ELEMS(aac_normal_chan_layouts); i++) { |
966 |
✓✓ | 25 |
if (avctx->channel_layout == aac_normal_chan_layouts[i]) { |
967 |
11 |
s->needs_pce = s->options.pce; |
|
968 |
11 |
break; |
|
969 |
} |
||
970 |
} |
||
971 |
|||
972 |
✗✓ | 11 |
if (s->needs_pce) { |
973 |
char buf[64]; |
||
974 |
for (i = 0; i < FF_ARRAY_ELEMS(aac_pce_configs); i++) |
||
975 |
if (avctx->channel_layout == aac_pce_configs[i].layout) |
||
976 |
break; |
||
977 |
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
||
978 |
ERROR_IF(i == FF_ARRAY_ELEMS(aac_pce_configs), "Unsupported channel layout \"%s\"\n", buf); |
||
979 |
av_log(avctx, AV_LOG_INFO, "Using a PCE to encode channel layout \"%s\"\n", buf); |
||
980 |
s->pce = aac_pce_configs[i]; |
||
981 |
s->reorder_map = s->pce.reorder_map; |
||
982 |
s->chan_map = s->pce.config_map; |
||
983 |
} else { |
||
984 |
11 |
s->reorder_map = aac_chan_maps[s->channels - 1]; |
|
985 |
11 |
s->chan_map = aac_chan_configs[s->channels - 1]; |
|
986 |
} |
||
987 |
|||
988 |
✓✓ | 11 |
if (!avctx->bit_rate) { |
989 |
✓✓ | 9 |
for (i = 1; i <= s->chan_map[0]; i++) { |
990 |
✓✓ | 9 |
avctx->bit_rate += s->chan_map[i] == TYPE_CPE ? 128000 : /* Pair */ |
991 |
✓✓ | 3 |
s->chan_map[i] == TYPE_LFE ? 16000 : /* LFE */ |
992 |
69000 ; /* SCE */ |
||
993 |
} |
||
994 |
} |
||
995 |
|||
996 |
/* Samplerate */ |
||
997 |
✓✗ | 54 |
for (i = 0; i < 16; i++) |
998 |
✓✓ | 54 |
if (avctx->sample_rate == avpriv_mpeg4audio_sample_rates[i]) |
999 |
11 |
break; |
|
1000 |
11 |
s->samplerate_index = i; |
|
1001 |
✓✗✓✗ ✗✓ |
11 |
ERROR_IF(s->samplerate_index == 16 || |
1002 |
s->samplerate_index >= ff_aac_swb_size_1024_len || |
||
1003 |
s->samplerate_index >= ff_aac_swb_size_128_len, |
||
1004 |
"Unsupported sample rate %d\n", avctx->sample_rate); |
||
1005 |
|||
1006 |
/* Bitrate limiting */ |
||
1007 |
✗✓ | 11 |
WARN_IF(1024.0 * avctx->bit_rate / avctx->sample_rate > 6144 * s->channels, |
1008 |
"Too many bits %f > %d per frame requested, clamping to max\n", |
||
1009 |
1024.0 * avctx->bit_rate / avctx->sample_rate, |
||
1010 |
6144 * s->channels); |
||
1011 |
✓✗ | 11 |
avctx->bit_rate = (int64_t)FFMIN(6144 * s->channels / 1024.0 * avctx->sample_rate, |
1012 |
avctx->bit_rate); |
||
1013 |
|||
1014 |
/* Profile and option setting */ |
||
1015 |
✓✓ | 11 |
avctx->profile = avctx->profile == FF_PROFILE_UNKNOWN ? FF_PROFILE_AAC_LOW : |
1016 |
avctx->profile; |
||
1017 |
✓✗ | 21 |
for (i = 0; i < FF_ARRAY_ELEMS(aacenc_profiles); i++) |
1018 |
✓✓ | 21 |
if (avctx->profile == aacenc_profiles[i]) |
1019 |
11 |
break; |
|
1020 |
✗✓ | 11 |
if (avctx->profile == FF_PROFILE_MPEG2_AAC_LOW) { |
1021 |
avctx->profile = FF_PROFILE_AAC_LOW; |
||
1022 |
ERROR_IF(s->options.pred, |
||
1023 |
"Main prediction unavailable in the \"mpeg2_aac_low\" profile\n"); |
||
1024 |
ERROR_IF(s->options.ltp, |
||
1025 |
"LTP prediction unavailable in the \"mpeg2_aac_low\" profile\n"); |
||
1026 |
WARN_IF(s->options.pns, |
||
1027 |
"PNS unavailable in the \"mpeg2_aac_low\" profile, turning off\n"); |
||
1028 |
s->options.pns = 0; |
||
1029 |
✗✓ | 11 |
} else if (avctx->profile == FF_PROFILE_AAC_LTP) { |
1030 |
s->options.ltp = 1; |
||
1031 |
ERROR_IF(s->options.pred, |
||
1032 |
"Main prediction unavailable in the \"aac_ltp\" profile\n"); |
||
1033 |
✓✓ | 11 |
} else if (avctx->profile == FF_PROFILE_AAC_MAIN) { |
1034 |
1 |
s->options.pred = 1; |
|
1035 |
✗✓ | 1 |
ERROR_IF(s->options.ltp, |
1036 |
"LTP prediction unavailable in the \"aac_main\" profile\n"); |
||
1037 |
✗✓ | 10 |
} else if (s->options.ltp) { |
1038 |
avctx->profile = FF_PROFILE_AAC_LTP; |
||
1039 |
WARN_IF(1, |
||
1040 |
"Chainging profile to \"aac_ltp\"\n"); |
||
1041 |
ERROR_IF(s->options.pred, |
||
1042 |
"Main prediction unavailable in the \"aac_ltp\" profile\n"); |
||
1043 |
✗✓ | 10 |
} else if (s->options.pred) { |
1044 |
avctx->profile = FF_PROFILE_AAC_MAIN; |
||
1045 |
WARN_IF(1, |
||
1046 |
"Chainging profile to \"aac_main\"\n"); |
||
1047 |
ERROR_IF(s->options.ltp, |
||
1048 |
"LTP prediction unavailable in the \"aac_main\" profile\n"); |
||
1049 |
} |
||
1050 |
11 |
s->profile = avctx->profile; |
|
1051 |
|||
1052 |
/* Coder limitations */ |
||
1053 |
11 |
s->coder = &ff_aac_coders[s->options.coder]; |
|
1054 |
✗✓ | 11 |
if (s->options.coder == AAC_CODER_ANMR) { |
1055 |
ERROR_IF(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL, |
||
1056 |
"The ANMR coder is considered experimental, add -strict -2 to enable!\n"); |
||
1057 |
s->options.intensity_stereo = 0; |
||
1058 |
s->options.pns = 0; |
||
1059 |
} |
||
1060 |
✗✓✗✗ |
11 |
ERROR_IF(s->options.ltp && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL, |
1061 |
"The LPT profile requires experimental compliance, add -strict -2 to enable!\n"); |
||
1062 |
|||
1063 |
/* M/S introduces horrible artifacts with multichannel files, this is temporary */ |
||
1064 |
✓✓ | 11 |
if (s->channels > 3) |
1065 |
1 |
s->options.mid_side = 0; |
|
1066 |
|||
1067 |
✗✓ | 11 |
if ((ret = dsp_init(avctx, s)) < 0) |
1068 |
return ret; |
||
1069 |
|||
1070 |
✗✓ | 11 |
if ((ret = alloc_buffers(avctx, s)) < 0) |
1071 |
return ret; |
||
1072 |
|||
1073 |
✗✓ | 11 |
if ((ret = put_audio_specific_config(avctx))) |
1074 |
return ret; |
||
1075 |
|||
1076 |
11 |
sizes[0] = ff_aac_swb_size_1024[s->samplerate_index]; |
|
1077 |
11 |
sizes[1] = ff_aac_swb_size_128[s->samplerate_index]; |
|
1078 |
11 |
lengths[0] = ff_aac_num_swb_1024[s->samplerate_index]; |
|
1079 |
11 |
lengths[1] = ff_aac_num_swb_128[s->samplerate_index]; |
|
1080 |
✓✓ | 25 |
for (i = 0; i < s->chan_map[0]; i++) |
1081 |
14 |
grouping[i] = s->chan_map[i + 1] == TYPE_CPE; |
|
1082 |
✗✓ | 11 |
if ((ret = ff_psy_init(&s->psy, avctx, 2, sizes, lengths, |
1083 |
11 |
s->chan_map[0], grouping)) < 0) |
|
1084 |
return ret; |
||
1085 |
11 |
s->psypp = ff_psy_preprocess_init(avctx); |
|
1086 |
11 |
ff_lpc_init(&s->lpc, 2*avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON); |
|
1087 |
11 |
s->random_state = 0x1f2e3d4c; |
|
1088 |
|||
1089 |
11 |
s->abs_pow34 = abs_pow34_v; |
|
1090 |
11 |
s->quant_bands = quantize_bands; |
|
1091 |
|||
1092 |
if (ARCH_X86) |
||
1093 |
11 |
ff_aac_dsp_init_x86(s); |
|
1094 |
|||
1095 |
if (HAVE_MIPSDSP) |
||
1096 |
ff_aac_coder_init_mips(s); |
||
1097 |
|||
1098 |
11 |
ff_af_queue_init(avctx, &s->afq); |
|
1099 |
11 |
ff_aac_tableinit(); |
|
1100 |
|||
1101 |
11 |
return 0; |
|
1102 |
} |
||
1103 |
|||
1104 |
#define AACENC_FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM |
||
1105 |
static const AVOption aacenc_options[] = { |
||
1106 |
{"aac_coder", "Coding algorithm", offsetof(AACEncContext, options.coder), AV_OPT_TYPE_INT, {.i64 = AAC_CODER_FAST}, 0, AAC_CODER_NB-1, AACENC_FLAGS, "coder"}, |
||
1107 |
{"anmr", "ANMR method", 0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_ANMR}, INT_MIN, INT_MAX, AACENC_FLAGS, "coder"}, |
||
1108 |
{"twoloop", "Two loop searching method", 0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_TWOLOOP}, INT_MIN, INT_MAX, AACENC_FLAGS, "coder"}, |
||
1109 |
{"fast", "Default fast search", 0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_FAST}, INT_MIN, INT_MAX, AACENC_FLAGS, "coder"}, |
||
1110 |
{"aac_ms", "Force M/S stereo coding", offsetof(AACEncContext, options.mid_side), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AACENC_FLAGS}, |
||
1111 |
{"aac_is", "Intensity stereo coding", offsetof(AACEncContext, options.intensity_stereo), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS}, |
||
1112 |
{"aac_pns", "Perceptual noise substitution", offsetof(AACEncContext, options.pns), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS}, |
||
1113 |
{"aac_tns", "Temporal noise shaping", offsetof(AACEncContext, options.tns), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS}, |
||
1114 |
{"aac_ltp", "Long term prediction", offsetof(AACEncContext, options.ltp), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS}, |
||
1115 |
{"aac_pred", "AAC-Main prediction", offsetof(AACEncContext, options.pred), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS}, |
||
1116 |
{"aac_pce", "Forces the use of PCEs", offsetof(AACEncContext, options.pce), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS}, |
||
1117 |
FF_AAC_PROFILE_OPTS |
||
1118 |
{NULL} |
||
1119 |
}; |
||
1120 |
|||
1121 |
static const AVClass aacenc_class = { |
||
1122 |
.class_name = "AAC encoder", |
||
1123 |
.item_name = av_default_item_name, |
||
1124 |
.option = aacenc_options, |
||
1125 |
.version = LIBAVUTIL_VERSION_INT, |
||
1126 |
}; |
||
1127 |
|||
1128 |
static const AVCodecDefault aac_encode_defaults[] = { |
||
1129 |
{ "b", "0" }, |
||
1130 |
{ NULL } |
||
1131 |
}; |
||
1132 |
|||
1133 |
AVCodec ff_aac_encoder = { |
||
1134 |
.name = "aac", |
||
1135 |
.long_name = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"), |
||
1136 |
.type = AVMEDIA_TYPE_AUDIO, |
||
1137 |
.id = AV_CODEC_ID_AAC, |
||
1138 |
.priv_data_size = sizeof(AACEncContext), |
||
1139 |
.init = aac_encode_init, |
||
1140 |
.encode2 = aac_encode_frame, |
||
1141 |
.close = aac_encode_end, |
||
1142 |
.defaults = aac_encode_defaults, |
||
1143 |
.supported_samplerates = mpeg4audio_sample_rates, |
||
1144 |
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP, |
||
1145 |
.capabilities = AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY, |
||
1146 |
.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP, |
||
1147 |
AV_SAMPLE_FMT_NONE }, |
||
1148 |
.priv_class = &aacenc_class, |
||
1149 |
}; |
Generated by: GCOVR (Version 4.2) |