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twinvqdec.c
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1 /*
2  * TwinVQ decoder
3  * Copyright (c) 2009 Vitor Sessak
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 <math.h>
23 #include <stdint.h>
24 
26 #include "avcodec.h"
27 #include "get_bits.h"
28 #include "internal.h"
29 #include "twinvq.h"
30 #include "twinvq_data.h"
31 
32 static const TwinVQModeTab mode_08_08 = {
33  {
34  { 8, bark_tab_s08_64, 10, tab.fcb08s, 1, 5, tab.cb0808s0, tab.cb0808s1, 18 },
35  { 2, bark_tab_m08_256, 20, tab.fcb08m, 2, 5, tab.cb0808m0, tab.cb0808m1, 16 },
36  { 1, bark_tab_l08_512, 30, tab.fcb08l, 3, 6, tab.cb0808l0, tab.cb0808l1, 17 }
37  },
38  512, 12, tab.lsp08, 1, 5, 3, 3, tab.shape08, 8, 28, 20, 6, 40
39 };
40 
41 static const TwinVQModeTab mode_11_08 = {
42  {
43  { 8, bark_tab_s11_64, 10, tab.fcb11s, 1, 5, tab.cb1108s0, tab.cb1108s1, 29 },
44  { 2, bark_tab_m11_256, 20, tab.fcb11m, 2, 5, tab.cb1108m0, tab.cb1108m1, 24 },
45  { 1, bark_tab_l11_512, 30, tab.fcb11l, 3, 6, tab.cb1108l0, tab.cb1108l1, 27 }
46  },
47  512, 16, tab.lsp11, 1, 6, 4, 3, tab.shape11, 9, 36, 30, 7, 90
48 };
49 
50 static const TwinVQModeTab mode_11_10 = {
51  {
52  { 8, bark_tab_s11_64, 10, tab.fcb11s, 1, 5, tab.cb1110s0, tab.cb1110s1, 21 },
53  { 2, bark_tab_m11_256, 20, tab.fcb11m, 2, 5, tab.cb1110m0, tab.cb1110m1, 18 },
54  { 1, bark_tab_l11_512, 30, tab.fcb11l, 3, 6, tab.cb1110l0, tab.cb1110l1, 20 }
55  },
56  512, 16, tab.lsp11, 1, 6, 4, 3, tab.shape11, 9, 36, 30, 7, 90
57 };
58 
59 static const TwinVQModeTab mode_16_16 = {
60  {
61  { 8, bark_tab_s16_128, 10, tab.fcb16s, 1, 5, tab.cb1616s0, tab.cb1616s1, 16 },
62  { 2, bark_tab_m16_512, 20, tab.fcb16m, 2, 5, tab.cb1616m0, tab.cb1616m1, 15 },
63  { 1, bark_tab_l16_1024, 30, tab.fcb16l, 3, 6, tab.cb1616l0, tab.cb1616l1, 16 }
64  },
65  1024, 16, tab.lsp16, 1, 6, 4, 3, tab.shape16, 9, 56, 60, 7, 180
66 };
67 
68 static const TwinVQModeTab mode_22_20 = {
69  {
70  { 8, bark_tab_s22_128, 10, tab.fcb22s_1, 1, 6, tab.cb2220s0, tab.cb2220s1, 18 },
71  { 2, bark_tab_m22_512, 20, tab.fcb22m_1, 2, 6, tab.cb2220m0, tab.cb2220m1, 17 },
72  { 1, bark_tab_l22_1024, 32, tab.fcb22l_1, 4, 6, tab.cb2220l0, tab.cb2220l1, 18 }
73  },
74  1024, 16, tab.lsp22_1, 1, 6, 4, 3, tab.shape22_1, 9, 56, 36, 7, 144
75 };
76 
77 static const TwinVQModeTab mode_22_24 = {
78  {
79  { 8, bark_tab_s22_128, 10, tab.fcb22s_1, 1, 6, tab.cb2224s0, tab.cb2224s1, 15 },
80  { 2, bark_tab_m22_512, 20, tab.fcb22m_1, 2, 6, tab.cb2224m0, tab.cb2224m1, 14 },
81  { 1, bark_tab_l22_1024, 32, tab.fcb22l_1, 4, 6, tab.cb2224l0, tab.cb2224l1, 15 }
82  },
83  1024, 16, tab.lsp22_1, 1, 6, 4, 3, tab.shape22_1, 9, 56, 36, 7, 144
84 };
85 
86 static const TwinVQModeTab mode_22_32 = {
87  {
88  { 4, bark_tab_s22_128, 10, tab.fcb22s_2, 1, 6, tab.cb2232s0, tab.cb2232s1, 11 },
89  { 2, bark_tab_m22_256, 20, tab.fcb22m_2, 2, 6, tab.cb2232m0, tab.cb2232m1, 11 },
90  { 1, bark_tab_l22_512, 32, tab.fcb22l_2, 4, 6, tab.cb2232l0, tab.cb2232l1, 12 }
91  },
92  512, 16, tab.lsp22_2, 1, 6, 4, 4, tab.shape22_2, 9, 56, 36, 7, 72
93 };
94 
95 static const TwinVQModeTab mode_44_40 = {
96  {
97  { 16, bark_tab_s44_128, 10, tab.fcb44s, 1, 6, tab.cb4440s0, tab.cb4440s1, 18 },
98  { 4, bark_tab_m44_512, 20, tab.fcb44m, 2, 6, tab.cb4440m0, tab.cb4440m1, 17 },
99  { 1, bark_tab_l44_2048, 40, tab.fcb44l, 4, 6, tab.cb4440l0, tab.cb4440l1, 17 }
100  },
101  2048, 20, tab.lsp44, 1, 6, 4, 4, tab.shape44, 9, 84, 54, 7, 432
102 };
103 
104 static const TwinVQModeTab mode_44_48 = {
105  {
106  { 16, bark_tab_s44_128, 10, tab.fcb44s, 1, 6, tab.cb4448s0, tab.cb4448s1, 15 },
107  { 4, bark_tab_m44_512, 20, tab.fcb44m, 2, 6, tab.cb4448m0, tab.cb4448m1, 14 },
108  { 1, bark_tab_l44_2048, 40, tab.fcb44l, 4, 6, tab.cb4448l0, tab.cb4448l1, 14 }
109  },
110  2048, 20, tab.lsp44, 1, 6, 4, 4, tab.shape44, 9, 84, 54, 7, 432
111 };
112 
113 /**
114  * Evaluate a * b / 400 rounded to the nearest integer. When, for example,
115  * a * b == 200 and the nearest integer is ill-defined, use a table to emulate
116  * the following broken float-based implementation used by the binary decoder:
117  *
118  * @code
119  * static int very_broken_op(int a, int b)
120  * {
121  * static float test; // Ugh, force gcc to do the division first...
122  *
123  * test = a / 400.0;
124  * return b * test + 0.5;
125  * }
126  * @endcode
127  *
128  * @note if this function is replaced by just ROUNDED_DIV(a * b, 400.0), the
129  * stddev between the original file (before encoding with Yamaha encoder) and
130  * the decoded output increases, which leads one to believe that the encoder
131  * expects exactly this broken calculation.
132  */
133 static int very_broken_op(int a, int b)
134 {
135  int x = a * b + 200;
136  int size;
137  const uint8_t *rtab;
138 
139  if (x % 400 || b % 5)
140  return x / 400;
141 
142  x /= 400;
143 
144  size = tabs[b / 5].size;
145  rtab = tabs[b / 5].tab;
146  return x - rtab[size * av_log2(2 * (x - 1) / size) + (x - 1) % size];
147 }
148 
149 /**
150  * Sum to data a periodic peak of a given period, width and shape.
151  *
152  * @param period the period of the peak divided by 400.0
153  */
154 static void add_peak(int period, int width, const float *shape,
155  float ppc_gain, float *speech, int len)
156 {
157  int i, j;
158 
159  const float *shape_end = shape + len;
160  int center;
161 
162  // First peak centered around zero
163  for (i = 0; i < width / 2; i++)
164  speech[i] += ppc_gain * *shape++;
165 
166  for (i = 1; i < ROUNDED_DIV(len, width); i++) {
167  center = very_broken_op(period, i);
168  for (j = -width / 2; j < (width + 1) / 2; j++)
169  speech[j + center] += ppc_gain * *shape++;
170  }
171 
172  // For the last block, be careful not to go beyond the end of the buffer
173  center = very_broken_op(period, i);
174  for (j = -width / 2; j < (width + 1) / 2 && shape < shape_end; j++)
175  speech[j + center] += ppc_gain * *shape++;
176 }
177 
178 static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef,
179  const float *shape, float *speech)
180 {
181  const TwinVQModeTab *mtab = tctx->mtab;
182  int isampf = tctx->avctx->sample_rate / 1000;
183  int ibps = tctx->avctx->bit_rate / (1000 * tctx->avctx->channels);
184  int min_period = ROUNDED_DIV(40 * 2 * mtab->size, isampf);
185  int max_period = ROUNDED_DIV(40 * 2 * mtab->size * 6, isampf);
186  int period_range = max_period - min_period;
187  float pgain_step = 25000.0 / ((1 << mtab->pgain_bit) - 1);
188  float ppc_gain = 1.0 / 8192 *
189  twinvq_mulawinv(pgain_step * g_coef +
190  pgain_step / 2,
191  25000.0, TWINVQ_PGAIN_MU);
192 
193  // This is actually the period multiplied by 400. It is just linearly coded
194  // between its maximum and minimum value.
195  int period = min_period +
196  ROUNDED_DIV(period_coef * period_range,
197  (1 << mtab->ppc_period_bit) - 1);
198  int width;
199 
200  if (isampf == 22 && ibps == 32) {
201  // For some unknown reason, NTT decided to code this case differently...
202  width = ROUNDED_DIV((period + 800) * mtab->peak_per2wid,
203  400 * mtab->size);
204  } else
205  width = period * mtab->peak_per2wid / (400 * mtab->size);
206 
207  add_peak(period, width, shape, ppc_gain, speech, mtab->ppc_shape_len);
208 }
209 
210 static void dec_bark_env(TwinVQContext *tctx, const uint8_t *in, int use_hist,
211  int ch, float *out, float gain,
212  enum TwinVQFrameType ftype)
213 {
214  const TwinVQModeTab *mtab = tctx->mtab;
215  int i, j;
216  float *hist = tctx->bark_hist[ftype][ch];
217  float val = ((const float []) { 0.4, 0.35, 0.28 })[ftype];
218  int bark_n_coef = mtab->fmode[ftype].bark_n_coef;
219  int fw_cb_len = mtab->fmode[ftype].bark_env_size / bark_n_coef;
220  int idx = 0;
221 
222  for (i = 0; i < fw_cb_len; i++)
223  for (j = 0; j < bark_n_coef; j++, idx++) {
224  float tmp2 = mtab->fmode[ftype].bark_cb[fw_cb_len * in[j] + i] *
225  (1.0 / 4096);
226  float st = use_hist ? (1.0 - val) * tmp2 + val * hist[idx] + 1.0
227  : tmp2 + 1.0;
228 
229  hist[idx] = tmp2;
230  if (st < -1.0)
231  st = 1.0;
232 
233  twinvq_memset_float(out, st * gain, mtab->fmode[ftype].bark_tab[idx]);
234  out += mtab->fmode[ftype].bark_tab[idx];
235  }
236 }
237 
238 static void read_cb_data(TwinVQContext *tctx, GetBitContext *gb,
239  uint8_t *dst, enum TwinVQFrameType ftype)
240 {
241  int i;
242 
243  for (i = 0; i < tctx->n_div[ftype]; i++) {
244  int bs_second_part = (i >= tctx->bits_main_spec_change[ftype]);
245 
246  *dst++ = get_bits(gb, tctx->bits_main_spec[0][ftype][bs_second_part]);
247  *dst++ = get_bits(gb, tctx->bits_main_spec[1][ftype][bs_second_part]);
248  }
249 }
250 
252  const uint8_t *buf, int buf_size)
253 {
254  TwinVQFrameData *bits = &tctx->bits[0];
255  const TwinVQModeTab *mtab = tctx->mtab;
256  int channels = tctx->avctx->channels;
257  int sub;
258  GetBitContext gb;
259  int i, j, k, ret;
260 
261  if ((ret = init_get_bits8(&gb, buf, buf_size)) < 0)
262  return ret;
263  skip_bits(&gb, get_bits(&gb, 8));
264 
266 
267  if (bits->window_type > 8) {
268  av_log(avctx, AV_LOG_ERROR, "Invalid window type, broken sample?\n");
269  return AVERROR_INVALIDDATA;
270  }
271 
273 
274  sub = mtab->fmode[bits->ftype].sub;
275 
276  read_cb_data(tctx, &gb, bits->main_coeffs, bits->ftype);
277 
278  for (i = 0; i < channels; i++)
279  for (j = 0; j < sub; j++)
280  for (k = 0; k < mtab->fmode[bits->ftype].bark_n_coef; k++)
281  bits->bark1[i][j][k] =
282  get_bits(&gb, mtab->fmode[bits->ftype].bark_n_bit);
283 
284  for (i = 0; i < channels; i++)
285  for (j = 0; j < sub; j++)
286  bits->bark_use_hist[i][j] = get_bits1(&gb);
287 
288  if (bits->ftype == TWINVQ_FT_LONG) {
289  for (i = 0; i < channels; i++)
290  bits->gain_bits[i] = get_bits(&gb, TWINVQ_GAIN_BITS);
291  } else {
292  for (i = 0; i < channels; i++) {
293  bits->gain_bits[i] = get_bits(&gb, TWINVQ_GAIN_BITS);
294  for (j = 0; j < sub; j++)
295  bits->sub_gain_bits[i * sub + j] = get_bits(&gb,
297  }
298  }
299 
300  for (i = 0; i < channels; i++) {
301  bits->lpc_hist_idx[i] = get_bits(&gb, mtab->lsp_bit0);
302  bits->lpc_idx1[i] = get_bits(&gb, mtab->lsp_bit1);
303 
304  for (j = 0; j < mtab->lsp_split; j++)
305  bits->lpc_idx2[i][j] = get_bits(&gb, mtab->lsp_bit2);
306  }
307 
308  if (bits->ftype == TWINVQ_FT_LONG) {
309  read_cb_data(tctx, &gb, bits->ppc_coeffs, 3);
310  for (i = 0; i < channels; i++) {
311  bits->p_coef[i] = get_bits(&gb, mtab->ppc_period_bit);
312  bits->g_coef[i] = get_bits(&gb, mtab->pgain_bit);
313  }
314  }
315 
316  return (get_bits_count(&gb) + 7) / 8;
317 }
318 
320 {
321  int isampf, ibps;
322  TwinVQContext *tctx = avctx->priv_data;
323 
324  if (!avctx->extradata || avctx->extradata_size < 12) {
325  av_log(avctx, AV_LOG_ERROR, "Missing or incomplete extradata\n");
326  return AVERROR_INVALIDDATA;
327  }
328  avctx->channels = AV_RB32(avctx->extradata) + 1;
329  avctx->bit_rate = AV_RB32(avctx->extradata + 4) * 1000;
330  isampf = AV_RB32(avctx->extradata + 8);
331 
332  if (isampf < 8 || isampf > 44) {
333  av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate\n");
334  return AVERROR_INVALIDDATA;
335  }
336  switch (isampf) {
337  case 44:
338  avctx->sample_rate = 44100;
339  break;
340  case 22:
341  avctx->sample_rate = 22050;
342  break;
343  case 11:
344  avctx->sample_rate = 11025;
345  break;
346  default:
347  avctx->sample_rate = isampf * 1000;
348  break;
349  }
350 
351  if (avctx->channels <= 0 || avctx->channels > TWINVQ_CHANNELS_MAX) {
352  av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %i\n",
353  avctx->channels);
354  return -1;
355  }
356  avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO
358 
359  ibps = avctx->bit_rate / (1000 * avctx->channels);
360  if (ibps < 8 || ibps > 48) {
361  av_log(avctx, AV_LOG_ERROR, "Bad bitrate per channel value %d\n", ibps);
362  return AVERROR_INVALIDDATA;
363  }
364 
365  switch ((isampf << 8) + ibps) {
366  case (8 << 8) + 8:
367  tctx->mtab = &mode_08_08;
368  break;
369  case (11 << 8) + 8:
370  tctx->mtab = &mode_11_08;
371  break;
372  case (11 << 8) + 10:
373  tctx->mtab = &mode_11_10;
374  break;
375  case (16 << 8) + 16:
376  tctx->mtab = &mode_16_16;
377  break;
378  case (22 << 8) + 20:
379  tctx->mtab = &mode_22_20;
380  break;
381  case (22 << 8) + 24:
382  tctx->mtab = &mode_22_24;
383  break;
384  case (22 << 8) + 32:
385  tctx->mtab = &mode_22_32;
386  break;
387  case (44 << 8) + 40:
388  tctx->mtab = &mode_44_40;
389  break;
390  case (44 << 8) + 48:
391  tctx->mtab = &mode_44_48;
392  break;
393  default:
394  av_log(avctx, AV_LOG_ERROR,
395  "This version does not support %d kHz - %d kbit/s/ch mode.\n",
396  isampf, isampf);
397  return -1;
398  }
399 
400  tctx->codec = TWINVQ_CODEC_VQF;
402  tctx->dec_bark_env = dec_bark_env;
403  tctx->decode_ppc = decode_ppc;
404  tctx->frame_size = avctx->bit_rate * tctx->mtab->size
405  / avctx->sample_rate + 8;
406  tctx->is_6kbps = 0;
407  if (avctx->block_align && avctx->block_align * 8 / tctx->frame_size > 1) {
408  av_log(avctx, AV_LOG_ERROR,
409  "VQF TwinVQ should have only one frame per packet\n");
410  return AVERROR_INVALIDDATA;
411  }
412 
413  return ff_twinvq_decode_init(avctx);
414 }
415 
417  .name = "twinvq",
418  .long_name = NULL_IF_CONFIG_SMALL("VQF TwinVQ"),
419  .type = AVMEDIA_TYPE_AUDIO,
420  .id = AV_CODEC_ID_TWINVQ,
421  .priv_data_size = sizeof(TwinVQContext),
423  .close = ff_twinvq_decode_close,
425  .capabilities = AV_CODEC_CAP_DR1,
426  .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
428 };
#define TWINVQ_PGAIN_MU
Definition: twinvq.h:54
float, planar
Definition: samplefmt.h:69
static const TwinVQModeTab mode_44_48
Definition: twinvqdec.c:104
const char const char void * val
Definition: avisynth_c.h:771
int16_t cb1108l1[1728]
Definition: twinvq_data.h:152
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
uint8_t bark_n_bit
number of bits of the BSE coefs
Definition: twinvq.h:75
static const uint16_t bark_tab_l44_2048[]
int16_t cb1110s1[1344]
Definition: twinvq_data.h:169
static const uint16_t bark_tab_m22_512[]
int window_type
Definition: twinvq.h:87
uint8_t ppc_coeffs[TWINVQ_PPC_SHAPE_LEN_MAX]
Definition: twinvq.h:91
int bits_main_spec_change[4]
Definition: twinvq.h:155
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:261
const TwinVQModeTab * mtab
Definition: twinvq.h:142
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1552
TwinVQFrameData bits[TWINVQ_MAX_FRAMES_PER_PACKET]
Definition: twinvq.h:170
int p_coef[TWINVQ_CHANNELS_MAX]
Definition: twinvq.h:103
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
uint8_t bark_n_coef
number of BSE CB coefficients to read
Definition: twinvq.h:74
channels
Definition: aptx.c:30
int16_t cb2232m0[704]
Definition: twinvq_data.h:212
int16_t cb1108m1[1536]
Definition: twinvq_data.h:154
int16_t cb2232l0[768]
Definition: twinvq_data.h:210
const char * b
Definition: vf_curves.c:113
int16_t fcb44l[640]
Definition: twinvq_data.h:224
int av_log2(unsigned v)
Definition: intmath.c:26
static const uint16_t bark_tab_l22_1024[]
int16_t cb1110l1[1280]
Definition: twinvq_data.h:165
static const TwinVQModeTab mode_22_20
Definition: twinvqdec.c:68
static const uint16_t bark_tab_m08_256[]
Definition: twinvq_data.h:80
uint16_t size
frame size in samples
Definition: twinvq.h:114
uint8_t lsp_bit0
Definition: twinvq.h:119
#define AV_CH_LAYOUT_STEREO
static void dec_bark_env(TwinVQContext *tctx, const uint8_t *in, int use_hist, int ch, float *out, float gain, enum TwinVQFrameType ftype)
Definition: twinvqdec.c:210
uint8_t bark_use_hist[TWINVQ_CHANNELS_MAX][TWINVQ_SUBBLOCKS_MAX]
Definition: twinvq.h:97
static const uint16_t bark_tab_m16_512[]
AVCodec.
Definition: avcodec.h:3365
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:2194
uint8_t lpc_idx1[TWINVQ_CHANNELS_MAX]
Definition: twinvq.h:99
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
int16_t cb1616l0[1024]
Definition: twinvq_data.h:177
enum TwinVQFrameType ff_twinvq_wtype_to_ftype_table[]
Definition: twinvq.c:470
uint8_t sub_gain_bits[TWINVQ_CHANNELS_MAX *TWINVQ_SUBBLOCKS_MAX]
Definition: twinvq.h:94
int16_t cb1110s0[1344]
Definition: twinvq_data.h:168
static av_cold int twinvq_decode_init(AVCodecContext *avctx)
Definition: twinvqdec.c:319
int16_t cb2224s0[960]
Definition: twinvq_data.h:201
int16_t cb2232s1[704]
Definition: twinvq_data.h:215
int16_t fcb22l_2[512]
Definition: twinvq_data.h:204
int16_t cb4440s1[1152]
Definition: twinvq_data.h:222
int16_t cb4448l1[896]
Definition: twinvq_data.h:231
uint8_t lpc_idx2[TWINVQ_CHANNELS_MAX][TWINVQ_LSP_SPLIT_MAX]
Definition: twinvq.h:100
int16_t fcb11l[640]
Definition: twinvq_data.h:158
static const TwinVQModeTab mode_22_32
Definition: twinvqdec.c:86
uint8_t
#define av_cold
Definition: attributes.h:82
int16_t cb2232m1[704]
Definition: twinvq_data.h:213
int16_t cb4440m1[1088]
Definition: twinvq_data.h:220
int g_coef[TWINVQ_CHANNELS_MAX]
Definition: twinvq.h:104
uint8_t ppc_period_bit
number of the bits for the PPC period value
Definition: twinvq.h:127
av_cold int ff_twinvq_decode_close(AVCodecContext *avctx)
Definition: twinvq.c:751
int16_t cb2220m1[1088]
Definition: twinvq_data.h:187
uint8_t gain_bits[TWINVQ_CHANNELS_MAX]
Definition: twinvq.h:93
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1602
int16_t fcb44m[640]
Definition: twinvq_data.h:225
int16_t cb4448m0[896]
Definition: twinvq_data.h:232
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
int16_t cb1108l0[1728]
Definition: twinvq_data.h:151
#define TWINVQ_GAIN_BITS
Definition: twinvq.h:50
TwinVQFrameType
Definition: twinvq.h:39
static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef, const float *shape, float *speech)
Definition: twinvqdec.c:178
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:199
#define TWINVQ_WINDOW_TYPE_BITS
Definition: twinvq.h:53
int16_t cb0808l0[1088]
Definition: twinvq_data.h:144
Parameters and tables that are different for every combination of bitrate/sample rate.
Definition: twinvq.h:111
uint8_t lpc_hist_idx[TWINVQ_CHANNELS_MAX]
Definition: twinvq.h:101
static const TwinVQModeTab mode_44_40
Definition: twinvqdec.c:95
bitstream reader API header.
int16_t cb1616s0[1024]
Definition: twinvq_data.h:181
ptrdiff_t size
Definition: opengl_enc.c:101
static const uint16_t bark_tab_s08_64[]
Definition: twinvq_data.h:110
static const uint16_t bark_tab_m44_512[]
Long frame (single sub-block + PPC)
Definition: twinvq.h:42
int16_t fcb22m_1[640]
Definition: twinvq_data.h:192
#define av_log(a,...)
int16_t cb2220l1[1152]
Definition: twinvq_data.h:185
int16_t cb2224l0[960]
Definition: twinvq_data.h:197
uint8_t bark_env_size
number of distinct bark scale envelope values
Definition: twinvq.h:71
#define ROUNDED_DIV(a, b)
Definition: common.h:56
static float twinvq_mulawinv(float y, float clip, float mu)
Definition: twinvq.h:192
int16_t shape11[1280]
Definition: twinvq_data.h:161
int frame_size
Definition: twinvq.h:169
int16_t shape22_2[1152]
Definition: twinvq_data.h:207
static const TwinVQModeTab mode_16_16
Definition: twinvqdec.c:59
int16_t fcb08m[320]
Definition: twinvq_data.h:140
uint8_t main_coeffs[1024]
Definition: twinvq.h:90
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int16_t fcb16m[320]
Definition: twinvq_data.h:172
static const TwinVQModeTab mode_08_08
Definition: twinvqdec.c:32
int16_t cb0808m1[1024]
Definition: twinvq_data.h:149
AVCodec ff_twinvq_decoder
Definition: twinvqdec.c:416
int16_t cb2220s0[1152]
Definition: twinvq_data.h:188
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
int16_t cb4440l0[1088]
Definition: twinvq_data.h:217
int16_t cb2232l1[768]
Definition: twinvq_data.h:211
static const uint16_t bark_tab_m22_256[]
Definition: twinvq_data.h:95
int16_t cb2224s1[960]
Definition: twinvq_data.h:202
int16_t cb2220m0[1088]
Definition: twinvq_data.h:186
uint16_t width
Definition: gdv.c:47
static const uint16_t bark_tab_l11_512[]
int16_t fcb22s_1[640]
Definition: twinvq_data.h:193
const char * name
Name of the codec implementation.
Definition: avcodec.h:3372
static const uint16_t bark_tab_s22_128[]
int16_t cb1616l1[1024]
Definition: twinvq_data.h:178
int(* read_bitstream)(AVCodecContext *avctx, struct TwinVQContext *tctx, const uint8_t *buf, int buf_size)
Definition: twinvq.h:174
int16_t cb2224m0[896]
Definition: twinvq_data.h:199
int16_t cb2220l0[1152]
Definition: twinvq_data.h:184
static void read_cb_data(TwinVQContext *tctx, GetBitContext *gb, uint8_t *dst, enum TwinVQFrameType ftype)
Definition: twinvqdec.c:238
int16_t fcb08l[640]
Definition: twinvq_data.h:139
static const uint16_t bark_tab_l22_512[]
Definition: twinvq_data.h:66
int16_t cb4448s0[960]
Definition: twinvq_data.h:234
int16_t fcb16l[640]
Definition: twinvq_data.h:171
int16_t cb1110l0[1280]
Definition: twinvq_data.h:164
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2208
void(* decode_ppc)(struct TwinVQContext *tctx, int period_coef, int g_coef, const float *shape, float *speech)
Definition: twinvq.h:179
void(* dec_bark_env)(struct TwinVQContext *tctx, const uint8_t *in, int use_hist, int ch, float *out, float gain, enum TwinVQFrameType ftype)
Definition: twinvq.h:176
int16_t cb1616m0[960]
Definition: twinvq_data.h:179
audio channel layout utility functions
uint8_t sub
Number subblocks in each frame.
Definition: twinvq.h:67
uint16_t peak_per2wid
constant for peak period to peak width conversion
Definition: twinvq.h:134
static int twinvq_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx, const uint8_t *buf, int buf_size)
Definition: twinvqdec.c:251
int16_t shape22_1[1152]
Definition: twinvq_data.h:194
uint8_t bits_main_spec[2][4][2]
bits for the main codebook
Definition: twinvq.h:154
static const TwinVQModeTab mode_11_08
Definition: twinvqdec.c:41
static void twinvq_memset_float(float *buf, float val, int size)
Definition: twinvq.h:186
int ff_twinvq_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
Definition: twinvq.c:476
int is_6kbps
Definition: twinvq.h:144
int16_t cb1110m0[1152]
Definition: twinvq_data.h:166
int n_div[4]
Definition: twinvq.h:156
float lsp22_1[1312]
Definition: twinvq_data.h:195
int16_t cb2224l1[960]
Definition: twinvq_data.h:198
int16_t fcb22m_2[640]
Definition: twinvq_data.h:205
int16_t fcb44s[640]
Definition: twinvq_data.h:226
Libavcodec external API header.
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
float bark_hist[3][2][40]
BSE coefficients of last frame.
Definition: twinvq.h:148
float lsp44[1640]
Definition: twinvq_data.h:228
int sample_rate
samples per second
Definition: avcodec.h:2157
int16_t cb0808l1[1088]
Definition: twinvq_data.h:145
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:456
main external API structure.
Definition: avcodec.h:1502
int16_t fcb22l_1[512]
Definition: twinvq_data.h:191
int16_t shape08[1280]
Definition: twinvq_data.h:142
const uint16_t * bark_tab
Definition: twinvq.h:68
static const TwinVQModeTab mode_11_10
Definition: twinvqdec.c:50
enum TwinVQFrameType ftype
Definition: twinvq.h:88
static const uint16_t bark_tab_m11_256[]
int16_t fcb16s[320]
Definition: twinvq_data.h:173
int16_t cb1616s1[1024]
Definition: twinvq_data.h:182
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
const int16_t * bark_cb
codebook for the bark scale envelope (BSE)
Definition: twinvq.h:73
void * buf
Definition: avisynth_c.h:690
int extradata_size
Definition: avcodec.h:1603
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:313
float lsp16[1400]
Definition: twinvq_data.h:175
static void skip_bits(GetBitContext *s, int n)
Definition: get_bits.h:306
struct TwinVQFrameMode fmode[3]
frame type-dependent parameters
Definition: twinvq.h:112
float lsp11[1312]
Definition: twinvq_data.h:162
int16_t cb4440s0[1152]
Definition: twinvq_data.h:221
uint8_t pgain_bit
bits for PPC gain
Definition: twinvq.h:131
int16_t cb2220s1[1152]
Definition: twinvq_data.h:189
float lsp22_2[1312]
Definition: twinvq_data.h:208
int16_t shape44[1152]
Definition: twinvq_data.h:227
static const TwinVQModeTab mode_22_24
Definition: twinvqdec.c:77
int16_t cb0808s1[1152]
Definition: twinvq_data.h:147
int16_t cb1616m1[960]
Definition: twinvq_data.h:180
uint8_t lsp_bit1
Definition: twinvq.h:120
enum TwinVQCodec codec
Definition: twinvq.h:172
int16_t cb0808m0[1024]
Definition: twinvq_data.h:148
int16_t cb4448m1[896]
Definition: twinvq_data.h:233
common internal api header.
int16_t cb1108s1[1856]
Definition: twinvq_data.h:156
static const uint16_t bark_tab_s16_128[]
int16_t fcb11m[320]
Definition: twinvq_data.h:159
static const uint16_t bark_tab_l16_1024[]
int16_t cb1110m1[1152]
Definition: twinvq_data.h:167
uint8_t ppc_shape_len
size of PPC shape CB
Definition: twinvq.h:130
int16_t shape16[1920]
Definition: twinvq_data.h:174
int16_t fcb22s_2[640]
Definition: twinvq_data.h:206
#define TWINVQ_SUB_GAIN_BITS
Definition: twinvq.h:52
int16_t cb1108m0[1536]
Definition: twinvq_data.h:153
int16_t cb4440m0[1088]
Definition: twinvq_data.h:219
static const uint16_t bark_tab_s11_64[]
int16_t cb2224m1[896]
Definition: twinvq_data.h:200
void * priv_data
Definition: avcodec.h:1529
int len
int16_t cb4440l1[1088]
Definition: twinvq_data.h:218
int channels
number of audio channels
Definition: avcodec.h:2158
int16_t cb4448s1[960]
Definition: twinvq_data.h:235
static const struct @105 tabs[]
static const struct twinvq_data tab
int16_t fcb11s[320]
Definition: twinvq_data.h:160
int16_t cb4448l0[896]
Definition: twinvq_data.h:230
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:701
static const uint16_t bark_tab_l08_512[]
Definition: twinvq_data.h:41
FILE * out
Definition: movenc.c:54
static void add_peak(int period, int width, const float *shape, float ppc_gain, float *speech, int len)
Sum to data a periodic peak of a given period, width and shape.
Definition: twinvqdec.c:154
int16_t cb0808s0[1152]
Definition: twinvq_data.h:146
int16_t cb1108s0[1856]
Definition: twinvq_data.h:155
int16_t cb2232s0[704]
Definition: twinvq_data.h:214
#define TWINVQ_CHANNELS_MAX
Definition: twinvq.h:57
#define AV_CH_LAYOUT_MONO
static const uint16_t bark_tab_s44_128[]
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:956
AVCodecContext * avctx
Definition: twinvq.h:138
static int very_broken_op(int a, int b)
Evaluate a * b / 400 rounded to the nearest integer.
Definition: twinvqdec.c:133
uint8_t lsp_bit2
Definition: twinvq.h:121
uint8_t lsp_split
number of CB entries for the LSP decoding
Definition: twinvq.h:123
int16_t fcb08s[320]
Definition: twinvq_data.h:141
uint8_t bark1[TWINVQ_CHANNELS_MAX][TWINVQ_SUBBLOCKS_MAX][TWINVQ_BARK_N_COEF_MAX]
Definition: twinvq.h:96
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out->planar?out->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
av_cold int ff_twinvq_decode_init(AVCodecContext *avctx)
Definition: twinvq.c:770
float lsp08[504]
Definition: twinvq_data.h:138