Directory: | ../../../ffmpeg/ |
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File: | src/libavcodec/on2avc.c |
Date: | 2022-07-05 19:52:29 |
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Lines: | 197 | 587 | 33.6% |
Branches: | 82 | 204 | 40.2% |
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1 | /* | ||
2 | * On2 Audio for Video Codec decoder | ||
3 | * | ||
4 | * Copyright (c) 2013 Konstantin Shishkov | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | #include "libavutil/channel_layout.h" | ||
24 | #include "libavutil/ffmath.h" | ||
25 | #include "libavutil/float_dsp.h" | ||
26 | #include "libavutil/mem_internal.h" | ||
27 | |||
28 | #include "avcodec.h" | ||
29 | #include "bytestream.h" | ||
30 | #include "codec_internal.h" | ||
31 | #include "fft.h" | ||
32 | #include "get_bits.h" | ||
33 | #include "internal.h" | ||
34 | |||
35 | #include "on2avcdata.h" | ||
36 | |||
37 | #define ON2AVC_SUBFRAME_SIZE 1024 | ||
38 | |||
39 | enum WindowTypes { | ||
40 | WINDOW_TYPE_LONG = 0, | ||
41 | WINDOW_TYPE_LONG_STOP, | ||
42 | WINDOW_TYPE_LONG_START, | ||
43 | WINDOW_TYPE_8SHORT = 3, | ||
44 | WINDOW_TYPE_EXT4, | ||
45 | WINDOW_TYPE_EXT5, | ||
46 | WINDOW_TYPE_EXT6, | ||
47 | WINDOW_TYPE_EXT7, | ||
48 | }; | ||
49 | |||
50 | typedef struct On2AVCContext { | ||
51 | AVCodecContext *avctx; | ||
52 | AVFloatDSPContext *fdsp; | ||
53 | FFTContext mdct, mdct_half, mdct_small; | ||
54 | FFTContext fft128, fft256, fft512, fft1024; | ||
55 | void (*wtf)(struct On2AVCContext *ctx, float *out, float *in, int size); | ||
56 | |||
57 | int is_av500; | ||
58 | |||
59 | const On2AVCMode *modes; | ||
60 | int window_type, prev_window_type; | ||
61 | int num_windows, num_bands; | ||
62 | int bits_per_section; | ||
63 | const int *band_start; | ||
64 | |||
65 | int grouping[8]; | ||
66 | int ms_present; | ||
67 | int ms_info[ON2AVC_MAX_BANDS]; | ||
68 | |||
69 | int is_long; | ||
70 | |||
71 | uint8_t band_type[ON2AVC_MAX_BANDS]; | ||
72 | uint8_t band_run_end[ON2AVC_MAX_BANDS]; | ||
73 | int num_sections; | ||
74 | |||
75 | float band_scales[ON2AVC_MAX_BANDS]; | ||
76 | |||
77 | VLC scale_diff; | ||
78 | VLC cb_vlc[16]; | ||
79 | |||
80 | float scale_tab[128]; | ||
81 | |||
82 | DECLARE_ALIGNED(32, float, coeffs)[2][ON2AVC_SUBFRAME_SIZE]; | ||
83 | DECLARE_ALIGNED(32, float, delay) [2][ON2AVC_SUBFRAME_SIZE]; | ||
84 | |||
85 | DECLARE_ALIGNED(32, float, temp) [ON2AVC_SUBFRAME_SIZE * 2]; | ||
86 | DECLARE_ALIGNED(32, float, mdct_buf) [ON2AVC_SUBFRAME_SIZE]; | ||
87 | DECLARE_ALIGNED(32, float, long_win) [ON2AVC_SUBFRAME_SIZE]; | ||
88 | DECLARE_ALIGNED(32, float, short_win)[ON2AVC_SUBFRAME_SIZE / 8]; | ||
89 | } On2AVCContext; | ||
90 | |||
91 | 30 | static void on2avc_read_ms_info(On2AVCContext *c, GetBitContext *gb) | |
92 | { | ||
93 | 30 | int w, b, band_off = 0; | |
94 | |||
95 | 30 | c->ms_present = get_bits1(gb); | |
96 |
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30 | if (!c->ms_present) |
97 | 30 | return; | |
98 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
99 | ✗ | if (!c->grouping[w]) { | |
100 | ✗ | memcpy(c->ms_info + band_off, | |
101 | ✗ | c->ms_info + band_off - c->num_bands, | |
102 | ✗ | c->num_bands * sizeof(*c->ms_info)); | |
103 | ✗ | band_off += c->num_bands; | |
104 | ✗ | continue; | |
105 | } | ||
106 | ✗ | for (b = 0; b < c->num_bands; b++) | |
107 | ✗ | c->ms_info[band_off++] = get_bits1(gb); | |
108 | } | ||
109 | } | ||
110 | |||
111 | // do not see Table 17 in ISO/IEC 13818-7 | ||
112 | 30 | static int on2avc_decode_band_types(On2AVCContext *c, GetBitContext *gb) | |
113 | { | ||
114 |
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30 | int bits_per_sect = c->is_long ? 5 : 3; |
115 | 30 | int esc_val = (1 << bits_per_sect) - 1; | |
116 | 30 | int num_bands = c->num_bands * c->num_windows; | |
117 | 30 | int band = 0, i, band_type, run_len, run; | |
118 | |||
119 |
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255 | while (band < num_bands) { |
120 | 225 | band_type = get_bits(gb, 4); | |
121 | 225 | run_len = 1; | |
122 | do { | ||
123 | 225 | run = get_bits(gb, bits_per_sect); | |
124 |
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225 | if (run > num_bands - band - run_len) { |
125 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid band type run\n"); | |
126 | ✗ | return AVERROR_INVALIDDATA; | |
127 | } | ||
128 | 225 | run_len += run; | |
129 |
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225 | } while (run == esc_val); |
130 |
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1695 | for (i = band; i < band + run_len; i++) { |
131 | 1470 | c->band_type[i] = band_type; | |
132 | 1470 | c->band_run_end[i] = band + run_len; | |
133 | } | ||
134 | 225 | band += run_len; | |
135 | } | ||
136 | |||
137 | 30 | return 0; | |
138 | } | ||
139 | |||
140 | // completely not like Table 18 in ISO/IEC 13818-7 | ||
141 | // (no intensity stereo, different coding for the first coefficient) | ||
142 | 30 | static int on2avc_decode_band_scales(On2AVCContext *c, GetBitContext *gb) | |
143 | { | ||
144 | 30 | int w, w2, b, scale, first = 1; | |
145 | 30 | int band_off = 0; | |
146 | |||
147 |
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60 | for (w = 0; w < c->num_windows; w++) { |
148 |
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30 | if (!c->grouping[w]) { |
149 | ✗ | memcpy(c->band_scales + band_off, | |
150 | ✗ | c->band_scales + band_off - c->num_bands, | |
151 | ✗ | c->num_bands * sizeof(*c->band_scales)); | |
152 | ✗ | band_off += c->num_bands; | |
153 | ✗ | continue; | |
154 | } | ||
155 |
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1500 | for (b = 0; b < c->num_bands; b++) { |
156 |
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1470 | if (!c->band_type[band_off]) { |
157 | 211 | int all_zero = 1; | |
158 |
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211 | for (w2 = w + 1; w2 < c->num_windows; w2++) { |
159 | ✗ | if (c->grouping[w2]) | |
160 | ✗ | break; | |
161 | ✗ | if (c->band_type[w2 * c->num_bands + b]) { | |
162 | ✗ | all_zero = 0; | |
163 | ✗ | break; | |
164 | } | ||
165 | } | ||
166 |
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211 | if (all_zero) { |
167 | 211 | c->band_scales[band_off++] = 0; | |
168 | 211 | continue; | |
169 | } | ||
170 | } | ||
171 |
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1259 | if (first) { |
172 | 30 | scale = get_bits(gb, 7); | |
173 | 30 | first = 0; | |
174 | } else { | ||
175 | 1229 | scale += get_vlc2(gb, c->scale_diff.table, 9, 3); | |
176 | } | ||
177 |
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1259 | if (scale < 0 || scale > 127) { |
178 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\n", | |
179 | scale); | ||
180 | ✗ | return AVERROR_INVALIDDATA; | |
181 | } | ||
182 | 1259 | c->band_scales[band_off++] = c->scale_tab[scale]; | |
183 | } | ||
184 | } | ||
185 | |||
186 | 30 | return 0; | |
187 | } | ||
188 | |||
189 | 20628 | static inline float on2avc_scale(int v, float scale) | |
190 | { | ||
191 | 20628 | return v * sqrtf(abs(v)) * scale; | |
192 | } | ||
193 | |||
194 | // spectral data is coded completely differently - there are no unsigned codebooks | ||
195 | 1249 | static int on2avc_decode_quads(On2AVCContext *c, GetBitContext *gb, float *dst, | |
196 | int dst_size, int type, float band_scale) | ||
197 | { | ||
198 | int i, j, val, val1; | ||
199 | |||
200 |
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6396 | for (i = 0; i < dst_size; i += 4) { |
201 | 5147 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
202 | |||
203 |
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25735 | for (j = 0; j < 4; j++) { |
204 | 20588 | val1 = sign_extend((val >> (12 - j * 4)) & 0xF, 4); | |
205 | 20588 | *dst++ = on2avc_scale(val1, band_scale); | |
206 | } | ||
207 | } | ||
208 | |||
209 | 1249 | return 0; | |
210 | } | ||
211 | |||
212 | 2 | static inline int get_egolomb(GetBitContext *gb) | |
213 | { | ||
214 | 2 | int v = 4; | |
215 | |||
216 |
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3 | while (get_bits1(gb)) { |
217 | 1 | v++; | |
218 |
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1 | if (v > 30) { |
219 | ✗ | av_log(NULL, AV_LOG_WARNING, "Too large golomb code in get_egolomb.\n"); | |
220 | ✗ | v = 30; | |
221 | ✗ | break; | |
222 | } | ||
223 | } | ||
224 | |||
225 | 2 | return (1 << v) + get_bits_long(gb, v); | |
226 | } | ||
227 | |||
228 | 10 | static int on2avc_decode_pairs(On2AVCContext *c, GetBitContext *gb, float *dst, | |
229 | int dst_size, int type, float band_scale) | ||
230 | { | ||
231 | int i, val, val1, val2, sign; | ||
232 | |||
233 |
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30 | for (i = 0; i < dst_size; i += 2) { |
234 | 20 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
235 | |||
236 | 20 | val1 = sign_extend(val >> 8, 8); | |
237 | 20 | val2 = sign_extend(val & 0xFF, 8); | |
238 |
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20 | if (type == ON2AVC_ESC_CB) { |
239 |
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6 | if (val1 <= -16 || val1 >= 16) { |
240 | 1 | sign = 1 - (val1 < 0) * 2; | |
241 | 1 | val1 = sign * get_egolomb(gb); | |
242 | } | ||
243 |
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6 | if (val2 <= -16 || val2 >= 16) { |
244 | 1 | sign = 1 - (val2 < 0) * 2; | |
245 | 1 | val2 = sign * get_egolomb(gb); | |
246 | } | ||
247 | } | ||
248 | |||
249 | 20 | *dst++ = on2avc_scale(val1, band_scale); | |
250 | 20 | *dst++ = on2avc_scale(val2, band_scale); | |
251 | } | ||
252 | |||
253 | 10 | return 0; | |
254 | } | ||
255 | |||
256 | 30 | static int on2avc_read_channel_data(On2AVCContext *c, GetBitContext *gb, int ch) | |
257 | { | ||
258 | int ret; | ||
259 | int w, b, band_idx; | ||
260 | float *coeff_ptr; | ||
261 | |||
262 |
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30 | if ((ret = on2avc_decode_band_types(c, gb)) < 0) |
263 | ✗ | return ret; | |
264 |
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30 | if ((ret = on2avc_decode_band_scales(c, gb)) < 0) |
265 | ✗ | return ret; | |
266 | |||
267 | 30 | coeff_ptr = c->coeffs[ch]; | |
268 | 30 | band_idx = 0; | |
269 | 30 | memset(coeff_ptr, 0, ON2AVC_SUBFRAME_SIZE * sizeof(*coeff_ptr)); | |
270 |
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60 | for (w = 0; w < c->num_windows; w++) { |
271 |
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1500 | for (b = 0; b < c->num_bands; b++) { |
272 | 1470 | int band_size = c->band_start[b + 1] - c->band_start[b]; | |
273 | 1470 | int band_type = c->band_type[band_idx + b]; | |
274 | |||
275 |
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1470 | if (!band_type) { |
276 | 211 | coeff_ptr += band_size; | |
277 | 211 | continue; | |
278 | } | ||
279 |
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1259 | if (band_type < 9) |
280 | 1249 | on2avc_decode_quads(c, gb, coeff_ptr, band_size, band_type, | |
281 | 1249 | c->band_scales[band_idx + b]); | |
282 | else | ||
283 | 10 | on2avc_decode_pairs(c, gb, coeff_ptr, band_size, band_type, | |
284 | 10 | c->band_scales[band_idx + b]); | |
285 | 1259 | coeff_ptr += band_size; | |
286 | } | ||
287 | 30 | band_idx += c->num_bands; | |
288 | } | ||
289 | |||
290 | 30 | return 0; | |
291 | } | ||
292 | |||
293 | ✗ | static int on2avc_apply_ms(On2AVCContext *c) | |
294 | { | ||
295 | int w, b, i; | ||
296 | ✗ | int band_off = 0; | |
297 | ✗ | float *ch0 = c->coeffs[0]; | |
298 | ✗ | float *ch1 = c->coeffs[1]; | |
299 | |||
300 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
301 | ✗ | for (b = 0; b < c->num_bands; b++) { | |
302 | ✗ | if (c->ms_info[band_off + b]) { | |
303 | ✗ | for (i = c->band_start[b]; i < c->band_start[b + 1]; i++) { | |
304 | ✗ | float l = *ch0, r = *ch1; | |
305 | ✗ | *ch0++ = l + r; | |
306 | ✗ | *ch1++ = l - r; | |
307 | } | ||
308 | } else { | ||
309 | ✗ | ch0 += c->band_start[b + 1] - c->band_start[b]; | |
310 | ✗ | ch1 += c->band_start[b + 1] - c->band_start[b]; | |
311 | } | ||
312 | } | ||
313 | ✗ | band_off += c->num_bands; | |
314 | } | ||
315 | ✗ | return 0; | |
316 | } | ||
317 | |||
318 | ✗ | static void zero_head_and_tail(float *src, int len, int order0, int order1) | |
319 | { | ||
320 | ✗ | memset(src, 0, sizeof(*src) * order0); | |
321 | ✗ | memset(src + len - order1, 0, sizeof(*src) * order1); | |
322 | } | ||
323 | |||
324 | ✗ | static void pretwiddle(float *src, float *dst, int dst_len, int tab_step, | |
325 | int step, int order0, int order1, const double * const *tabs) | ||
326 | { | ||
327 | float *src2, *out; | ||
328 | const double *tab; | ||
329 | int i, j; | ||
330 | |||
331 | ✗ | out = dst; | |
332 | ✗ | tab = tabs[0]; | |
333 | ✗ | for (i = 0; i < tab_step; i++) { | |
334 | ✗ | double sum = 0; | |
335 | ✗ | for (j = 0; j < order0; j++) | |
336 | ✗ | sum += src[j] * tab[j * tab_step + i]; | |
337 | ✗ | out[i] += sum; | |
338 | } | ||
339 | |||
340 | ✗ | out = dst + dst_len - tab_step; | |
341 | ✗ | tab = tabs[order0]; | |
342 | ✗ | src2 = src + (dst_len - tab_step) / step + 1 + order0; | |
343 | ✗ | for (i = 0; i < tab_step; i++) { | |
344 | ✗ | double sum = 0; | |
345 | ✗ | for (j = 0; j < order1; j++) | |
346 | ✗ | sum += src2[j] * tab[j * tab_step + i]; | |
347 | ✗ | out[i] += sum; | |
348 | } | ||
349 | } | ||
350 | |||
351 | ✗ | static void twiddle(float *src1, float *src2, int src2_len, | |
352 | const double *tab, int tab_len, int step, | ||
353 | int order0, int order1, const double * const *tabs) | ||
354 | { | ||
355 | int steps; | ||
356 | int mask; | ||
357 | int i, j; | ||
358 | |||
359 | ✗ | steps = (src2_len - tab_len) / step + 1; | |
360 | ✗ | pretwiddle(src1, src2, src2_len, tab_len, step, order0, order1, tabs); | |
361 | ✗ | mask = tab_len - 1; | |
362 | |||
363 | ✗ | for (i = 0; i < steps; i++) { | |
364 | ✗ | float in0 = src1[order0 + i]; | |
365 | ✗ | int pos = (src2_len - 1) & mask; | |
366 | |||
367 | ✗ | if (pos < tab_len) { | |
368 | ✗ | const double *t = tab; | |
369 | ✗ | for (j = pos; j >= 0; j--) | |
370 | ✗ | src2[j] += in0 * *t++; | |
371 | ✗ | for (j = 0; j < tab_len - pos - 1; j++) | |
372 | ✗ | src2[src2_len - j - 1] += in0 * tab[pos + 1 + j]; | |
373 | } else { | ||
374 | ✗ | for (j = 0; j < tab_len; j++) | |
375 | ✗ | src2[pos - j] += in0 * tab[j]; | |
376 | } | ||
377 | ✗ | mask = pos + step; | |
378 | } | ||
379 | } | ||
380 | |||
381 | #define CMUL1_R(s, t, is, it) \ | ||
382 | s[is + 0] * t[it + 0] - s[is + 1] * t[it + 1] | ||
383 | #define CMUL1_I(s, t, is, it) \ | ||
384 | s[is + 0] * t[it + 1] + s[is + 1] * t[it + 0] | ||
385 | #define CMUL2_R(s, t, is, it) \ | ||
386 | s[is + 0] * t[it + 0] + s[is + 1] * t[it + 1] | ||
387 | #define CMUL2_I(s, t, is, it) \ | ||
388 | s[is + 0] * t[it + 1] - s[is + 1] * t[it + 0] | ||
389 | |||
390 | #define CMUL0(dst, id, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
391 | dst[id] = s0[is] * t0[it] + s1[is] * t1[it] \ | ||
392 | + s2[is] * t2[it] + s3[is] * t3[it]; \ | ||
393 | dst[id + 1] = s0[is] * t0[it + 1] + s1[is] * t1[it + 1] \ | ||
394 | + s2[is] * t2[it + 1] + s3[is] * t3[it + 1]; | ||
395 | |||
396 | #define CMUL1(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
397 | *dst++ = CMUL1_R(s0, t0, is, it) \ | ||
398 | + CMUL1_R(s1, t1, is, it) \ | ||
399 | + CMUL1_R(s2, t2, is, it) \ | ||
400 | + CMUL1_R(s3, t3, is, it); \ | ||
401 | *dst++ = CMUL1_I(s0, t0, is, it) \ | ||
402 | + CMUL1_I(s1, t1, is, it) \ | ||
403 | + CMUL1_I(s2, t2, is, it) \ | ||
404 | + CMUL1_I(s3, t3, is, it); | ||
405 | |||
406 | #define CMUL2(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
407 | *dst++ = CMUL2_R(s0, t0, is, it) \ | ||
408 | + CMUL2_R(s1, t1, is, it) \ | ||
409 | + CMUL2_R(s2, t2, is, it) \ | ||
410 | + CMUL2_R(s3, t3, is, it); \ | ||
411 | *dst++ = CMUL2_I(s0, t0, is, it) \ | ||
412 | + CMUL2_I(s1, t1, is, it) \ | ||
413 | + CMUL2_I(s2, t2, is, it) \ | ||
414 | + CMUL2_I(s3, t3, is, it); | ||
415 | |||
416 | ✗ | static void combine_fft(float *s0, float *s1, float *s2, float *s3, float *dst, | |
417 | const float *t0, const float *t1, | ||
418 | const float *t2, const float *t3, int len, int step) | ||
419 | { | ||
420 | const float *h0, *h1, *h2, *h3; | ||
421 | float *d1, *d2; | ||
422 | int tmp, half; | ||
423 | ✗ | int len2 = len >> 1, len4 = len >> 2; | |
424 | int hoff; | ||
425 | int i, j, k; | ||
426 | |||
427 | ✗ | tmp = step; | |
428 | ✗ | for (half = len2; tmp > 1; half <<= 1, tmp >>= 1); | |
429 | |||
430 | ✗ | h0 = t0 + half; | |
431 | ✗ | h1 = t1 + half; | |
432 | ✗ | h2 = t2 + half; | |
433 | ✗ | h3 = t3 + half; | |
434 | |||
435 | ✗ | CMUL0(dst, 0, s0, s1, s2, s3, t0, t1, t2, t3, 0, 0); | |
436 | |||
437 | ✗ | hoff = 2 * step * (len4 >> 1); | |
438 | |||
439 | ✗ | j = 2; | |
440 | ✗ | k = 2 * step; | |
441 | ✗ | d1 = dst + 2; | |
442 | ✗ | d2 = dst + 2 + (len >> 1); | |
443 | ✗ | for (i = 0; i < (len4 - 1) >> 1; i++) { | |
444 | ✗ | CMUL1(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
445 | ✗ | CMUL1(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
446 | ✗ | j += 2; | |
447 | ✗ | k += 2 * step; | |
448 | } | ||
449 | ✗ | CMUL0(dst, len4, s0, s1, s2, s3, t0, t1, t2, t3, 1, hoff); | |
450 | ✗ | CMUL0(dst, len4 + len2, s0, s1, s2, s3, h0, h1, h2, h3, 1, hoff); | |
451 | |||
452 | ✗ | j = len4; | |
453 | ✗ | k = hoff + 2 * step * len4; | |
454 | ✗ | d1 = dst + len4 + 2; | |
455 | ✗ | d2 = dst + len4 + 2 + len2; | |
456 | ✗ | for (i = 0; i < (len4 - 2) >> 1; i++) { | |
457 | ✗ | CMUL2(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
458 | ✗ | CMUL2(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
459 | ✗ | j -= 2; | |
460 | ✗ | k += 2 * step; | |
461 | } | ||
462 | ✗ | CMUL0(dst, len2 + 4, s0, s1, s2, s3, t0, t1, t2, t3, 0, k); | |
463 | } | ||
464 | |||
465 | ✗ | static void wtf_end_512(On2AVCContext *c, float *out, float *src, | |
466 | float *tmp0, float *tmp1) | ||
467 | { | ||
468 | ✗ | memcpy(src, tmp0, 384 * sizeof(*tmp0)); | |
469 | ✗ | memcpy(tmp0 + 384, src + 384, 128 * sizeof(*tmp0)); | |
470 | |||
471 | ✗ | zero_head_and_tail(src, 128, 16, 4); | |
472 | ✗ | zero_head_and_tail(src + 128, 128, 16, 4); | |
473 | ✗ | zero_head_and_tail(src + 256, 128, 13, 7); | |
474 | ✗ | zero_head_and_tail(src + 384, 128, 15, 5); | |
475 | |||
476 | ✗ | c->fft128.fft_permute(&c->fft128, (FFTComplex*)src); | |
477 | ✗ | c->fft128.fft_permute(&c->fft128, (FFTComplex*)(src + 128)); | |
478 | ✗ | c->fft128.fft_permute(&c->fft128, (FFTComplex*)(src + 256)); | |
479 | ✗ | c->fft128.fft_permute(&c->fft128, (FFTComplex*)(src + 384)); | |
480 | ✗ | c->fft128.fft_calc(&c->fft128, (FFTComplex*)src); | |
481 | ✗ | c->fft128.fft_calc(&c->fft128, (FFTComplex*)(src + 128)); | |
482 | ✗ | c->fft128.fft_calc(&c->fft128, (FFTComplex*)(src + 256)); | |
483 | ✗ | c->fft128.fft_calc(&c->fft128, (FFTComplex*)(src + 384)); | |
484 | ✗ | combine_fft(src, src + 128, src + 256, src + 384, tmp1, | |
485 | ff_on2avc_ctab_1, ff_on2avc_ctab_2, | ||
486 | ff_on2avc_ctab_3, ff_on2avc_ctab_4, 512, 2); | ||
487 | ✗ | c->fft512.fft_permute(&c->fft512, (FFTComplex*)tmp1); | |
488 | ✗ | c->fft512.fft_calc(&c->fft512, (FFTComplex*)tmp1); | |
489 | |||
490 | ✗ | pretwiddle(&tmp0[ 0], tmp1, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
491 | ✗ | pretwiddle(&tmp0[128], tmp1, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
492 | ✗ | pretwiddle(&tmp0[256], tmp1, 512, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
493 | ✗ | pretwiddle(&tmp0[384], tmp1, 512, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
494 | |||
495 | ✗ | memcpy(src, tmp1, 512 * sizeof(float)); | |
496 | } | ||
497 | |||
498 | ✗ | static void wtf_end_1024(On2AVCContext *c, float *out, float *src, | |
499 | float *tmp0, float *tmp1) | ||
500 | { | ||
501 | ✗ | memcpy(src, tmp0, 768 * sizeof(*tmp0)); | |
502 | ✗ | memcpy(tmp0 + 768, src + 768, 256 * sizeof(*tmp0)); | |
503 | |||
504 | ✗ | zero_head_and_tail(src, 256, 16, 4); | |
505 | ✗ | zero_head_and_tail(src + 256, 256, 16, 4); | |
506 | ✗ | zero_head_and_tail(src + 512, 256, 13, 7); | |
507 | ✗ | zero_head_and_tail(src + 768, 256, 15, 5); | |
508 | |||
509 | ✗ | c->fft256.fft_permute(&c->fft256, (FFTComplex*)src); | |
510 | ✗ | c->fft256.fft_permute(&c->fft256, (FFTComplex*)(src + 256)); | |
511 | ✗ | c->fft256.fft_permute(&c->fft256, (FFTComplex*)(src + 512)); | |
512 | ✗ | c->fft256.fft_permute(&c->fft256, (FFTComplex*)(src + 768)); | |
513 | ✗ | c->fft256.fft_calc(&c->fft256, (FFTComplex*)src); | |
514 | ✗ | c->fft256.fft_calc(&c->fft256, (FFTComplex*)(src + 256)); | |
515 | ✗ | c->fft256.fft_calc(&c->fft256, (FFTComplex*)(src + 512)); | |
516 | ✗ | c->fft256.fft_calc(&c->fft256, (FFTComplex*)(src + 768)); | |
517 | ✗ | combine_fft(src, src + 256, src + 512, src + 768, tmp1, | |
518 | ff_on2avc_ctab_1, ff_on2avc_ctab_2, | ||
519 | ff_on2avc_ctab_3, ff_on2avc_ctab_4, 1024, 1); | ||
520 | ✗ | c->fft1024.fft_permute(&c->fft1024, (FFTComplex*)tmp1); | |
521 | ✗ | c->fft1024.fft_calc(&c->fft1024, (FFTComplex*)tmp1); | |
522 | |||
523 | ✗ | pretwiddle(&tmp0[ 0], tmp1, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
524 | ✗ | pretwiddle(&tmp0[256], tmp1, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
525 | ✗ | pretwiddle(&tmp0[512], tmp1, 1024, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
526 | ✗ | pretwiddle(&tmp0[768], tmp1, 1024, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
527 | |||
528 | ✗ | memcpy(src, tmp1, 1024 * sizeof(float)); | |
529 | } | ||
530 | |||
531 | ✗ | static void wtf_40(On2AVCContext *c, float *out, float *src, int size) | |
532 | { | ||
533 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
534 | |||
535 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
536 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
537 | |||
538 | ✗ | if (size == 512) { | |
539 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
540 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
541 | ✗ | twiddle(src + 16, &tmp0[ 16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
542 | ✗ | twiddle(src + 24, &tmp0[ 16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
543 | ✗ | twiddle(src + 32, &tmp0[ 32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
544 | ✗ | twiddle(src + 40, &tmp0[ 32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
545 | ✗ | twiddle(src + 48, &tmp0[ 48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
546 | ✗ | twiddle(src + 56, &tmp0[ 48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
547 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
548 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
549 | ✗ | twiddle(&tmp0[32], &tmp1[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
550 | ✗ | twiddle(&tmp0[48], &tmp1[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
551 | ✗ | twiddle(src + 64, &tmp1[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
552 | ✗ | twiddle(src + 80, &tmp1[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
553 | ✗ | twiddle(src + 96, &tmp1[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
554 | ✗ | twiddle(src + 112, &tmp1[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
555 | ✗ | twiddle(src + 128, &tmp1[128], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
556 | ✗ | twiddle(src + 144, &tmp1[128], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
557 | ✗ | twiddle(src + 160, &tmp1[160], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
558 | ✗ | twiddle(src + 176, &tmp1[160], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
559 | |||
560 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
561 | |||
562 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
563 | ✗ | twiddle(&tmp1[ 32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
564 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
565 | ✗ | twiddle(&tmp1[ 96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
566 | ✗ | twiddle(&tmp1[128], &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
567 | ✗ | twiddle(&tmp1[160], &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
568 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
569 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
570 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
571 | ✗ | twiddle(src + 288, &tmp0[256], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
572 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
573 | ✗ | twiddle(src + 352, &tmp0[256], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
574 | |||
575 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
576 | } else { | ||
577 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
578 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
579 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
580 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
581 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
582 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
583 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
584 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
585 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
586 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
587 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
588 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
589 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
590 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
591 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
592 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
593 | ✗ | twiddle(src + 256, &tmp1[256], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
594 | ✗ | twiddle(src + 288, &tmp1[256], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
595 | ✗ | twiddle(src + 320, &tmp1[320], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
596 | ✗ | twiddle(src + 352, &tmp1[320], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
597 | |||
598 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
599 | |||
600 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
601 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
602 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
603 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
604 | ✗ | twiddle(&tmp1[256], &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
605 | ✗ | twiddle(&tmp1[320], &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
606 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
607 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
608 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
609 | ✗ | twiddle(src + 576, &tmp0[512], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
610 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
611 | ✗ | twiddle(src + 704, &tmp0[512], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
612 | |||
613 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
614 | } | ||
615 | } | ||
616 | |||
617 | ✗ | static void wtf_44(On2AVCContext *c, float *out, float *src, int size) | |
618 | { | ||
619 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
620 | |||
621 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
622 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
623 | |||
624 | ✗ | if (size == 512) { | |
625 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
626 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
627 | ✗ | twiddle(src + 16, &tmp0[16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
628 | ✗ | twiddle(src + 24, &tmp0[16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
629 | ✗ | twiddle(src + 32, &tmp0[32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
630 | ✗ | twiddle(src + 40, &tmp0[32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
631 | ✗ | twiddle(src + 48, &tmp0[48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
632 | ✗ | twiddle(src + 56, &tmp0[48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
633 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
634 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
635 | ✗ | twiddle(&tmp0[32], &tmp1[32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
636 | ✗ | twiddle(&tmp0[48], &tmp1[32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
637 | ✗ | twiddle(src + 64, &tmp1[64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
638 | ✗ | twiddle(src + 80, &tmp1[64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
639 | ✗ | twiddle(src + 96, &tmp1[96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
640 | ✗ | twiddle(src + 112, &tmp1[96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
641 | |||
642 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
643 | |||
644 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
645 | ✗ | twiddle(&tmp1[32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
646 | ✗ | twiddle(&tmp1[64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
647 | ✗ | twiddle(&tmp1[96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
648 | ✗ | twiddle(src + 128, &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
649 | ✗ | twiddle(src + 160, &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
650 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
651 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
652 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
653 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
654 | |||
655 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
656 | } else { | ||
657 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
658 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
659 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
660 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
661 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
662 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
663 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
664 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
665 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
666 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
667 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
668 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
669 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
670 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
671 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
672 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
673 | |||
674 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
675 | |||
676 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
677 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
678 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
679 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
680 | ✗ | twiddle(src + 256, &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
681 | ✗ | twiddle(src + 320, &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
682 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
683 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
684 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
685 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
686 | |||
687 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
688 | } | ||
689 | } | ||
690 | |||
691 | ✗ | static int on2avc_reconstruct_channel_ext(On2AVCContext *c, AVFrame *dst, int offset) | |
692 | { | ||
693 | int ch, i; | ||
694 | |||
695 | ✗ | for (ch = 0; ch < c->avctx->ch_layout.nb_channels; ch++) { | |
696 | ✗ | float *out = (float*)dst->extended_data[ch] + offset; | |
697 | ✗ | float *in = c->coeffs[ch]; | |
698 | ✗ | float *saved = c->delay[ch]; | |
699 | ✗ | float *buf = c->mdct_buf; | |
700 | ✗ | float *wout = out + 448; | |
701 | |||
702 | ✗ | switch (c->window_type) { | |
703 | ✗ | case WINDOW_TYPE_EXT7: | |
704 | ✗ | c->mdct.imdct_half(&c->mdct, buf, in); | |
705 | ✗ | break; | |
706 | ✗ | case WINDOW_TYPE_EXT4: | |
707 | ✗ | c->wtf(c, buf, in, 1024); | |
708 | ✗ | break; | |
709 | ✗ | case WINDOW_TYPE_EXT5: | |
710 | ✗ | c->wtf(c, buf, in, 512); | |
711 | ✗ | c->mdct.imdct_half(&c->mdct_half, buf + 512, in + 512); | |
712 | ✗ | for (i = 0; i < 256; i++) { | |
713 | ✗ | FFSWAP(float, buf[i + 512], buf[1023 - i]); | |
714 | } | ||
715 | ✗ | break; | |
716 | ✗ | case WINDOW_TYPE_EXT6: | |
717 | ✗ | c->mdct.imdct_half(&c->mdct_half, buf, in); | |
718 | ✗ | for (i = 0; i < 256; i++) { | |
719 | ✗ | FFSWAP(float, buf[i], buf[511 - i]); | |
720 | } | ||
721 | ✗ | c->wtf(c, buf + 512, in + 512, 512); | |
722 | ✗ | break; | |
723 | } | ||
724 | |||
725 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
726 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
727 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
728 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
729 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
730 | } | ||
731 | |||
732 | ✗ | return 0; | |
733 | } | ||
734 | |||
735 | // not borrowed from aacdec.c - the codec has original design after all | ||
736 | 30 | static int on2avc_reconstruct_channel(On2AVCContext *c, int channel, | |
737 | AVFrame *dst, int offset) | ||
738 | { | ||
739 | int i; | ||
740 | 30 | float *out = (float*)dst->extended_data[channel] + offset; | |
741 | 30 | float *in = c->coeffs[channel]; | |
742 | 30 | float *saved = c->delay[channel]; | |
743 | 30 | float *buf = c->mdct_buf; | |
744 | 30 | float *temp = c->temp; | |
745 | |||
746 |
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30 | switch (c->window_type) { |
747 | 30 | case WINDOW_TYPE_LONG_START: | |
748 | case WINDOW_TYPE_LONG_STOP: | ||
749 | case WINDOW_TYPE_LONG: | ||
750 | 30 | c->mdct.imdct_half(&c->mdct, buf, in); | |
751 | 30 | break; | |
752 | ✗ | case WINDOW_TYPE_8SHORT: | |
753 | ✗ | for (i = 0; i < ON2AVC_SUBFRAME_SIZE; i += ON2AVC_SUBFRAME_SIZE / 8) | |
754 | ✗ | c->mdct_small.imdct_half(&c->mdct_small, buf + i, in + i); | |
755 | ✗ | break; | |
756 | } | ||
757 | |||
758 |
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30 | if ((c->prev_window_type == WINDOW_TYPE_LONG || |
759 | ✗ | c->prev_window_type == WINDOW_TYPE_LONG_STOP) && | |
760 |
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30 | (c->window_type == WINDOW_TYPE_LONG || |
761 | ✗ | c->window_type == WINDOW_TYPE_LONG_START)) { | |
762 | 30 | c->fdsp->vector_fmul_window(out, saved, buf, c->long_win, 512); | |
763 | } else { | ||
764 | ✗ | float *wout = out + 448; | |
765 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
766 | |||
767 | ✗ | if (c->window_type == WINDOW_TYPE_8SHORT) { | |
768 | ✗ | c->fdsp->vector_fmul_window(wout + 0*128, saved + 448, buf + 0*128, c->short_win, 64); | |
769 | ✗ | c->fdsp->vector_fmul_window(wout + 1*128, buf + 0*128 + 64, buf + 1*128, c->short_win, 64); | |
770 | ✗ | c->fdsp->vector_fmul_window(wout + 2*128, buf + 1*128 + 64, buf + 2*128, c->short_win, 64); | |
771 | ✗ | c->fdsp->vector_fmul_window(wout + 3*128, buf + 2*128 + 64, buf + 3*128, c->short_win, 64); | |
772 | ✗ | c->fdsp->vector_fmul_window(temp, buf + 3*128 + 64, buf + 4*128, c->short_win, 64); | |
773 | ✗ | memcpy(wout + 4*128, temp, 64 * sizeof(float)); | |
774 | } else { | ||
775 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
776 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
777 | } | ||
778 | } | ||
779 | |||
780 | // buffer update | ||
781 |
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30 | switch (c->window_type) { |
782 | ✗ | case WINDOW_TYPE_8SHORT: | |
783 | ✗ | memcpy(saved, temp + 64, 64 * sizeof(float)); | |
784 | ✗ | c->fdsp->vector_fmul_window(saved + 64, buf + 4*128 + 64, buf + 5*128, c->short_win, 64); | |
785 | ✗ | c->fdsp->vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, c->short_win, 64); | |
786 | ✗ | c->fdsp->vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, c->short_win, 64); | |
787 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
788 | ✗ | break; | |
789 | ✗ | case WINDOW_TYPE_LONG_START: | |
790 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
791 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
792 | ✗ | break; | |
793 | 30 | case WINDOW_TYPE_LONG_STOP: | |
794 | case WINDOW_TYPE_LONG: | ||
795 | 30 | memcpy(saved, buf + 512, 512 * sizeof(float)); | |
796 | 30 | break; | |
797 | } | ||
798 | 30 | return 0; | |
799 | } | ||
800 | |||
801 | 30 | static int on2avc_decode_subframe(On2AVCContext *c, const uint8_t *buf, | |
802 | int buf_size, AVFrame *dst, int offset) | ||
803 | { | ||
804 | GetBitContext gb; | ||
805 | int i, ret; | ||
806 | |||
807 |
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30 | if ((ret = init_get_bits8(&gb, buf, buf_size)) < 0) |
808 | ✗ | return ret; | |
809 | |||
810 |
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30 | if (get_bits1(&gb)) { |
811 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "enh bit set\n"); | |
812 | ✗ | return AVERROR_INVALIDDATA; | |
813 | } | ||
814 | 30 | c->prev_window_type = c->window_type; | |
815 | 30 | c->window_type = get_bits(&gb, 3); | |
816 | |||
817 | 30 | c->band_start = c->modes[c->window_type].band_start; | |
818 | 30 | c->num_windows = c->modes[c->window_type].num_windows; | |
819 | 30 | c->num_bands = c->modes[c->window_type].num_bands; | |
820 | 30 | c->is_long = (c->window_type != WINDOW_TYPE_8SHORT); | |
821 | |||
822 | 30 | c->grouping[0] = 1; | |
823 |
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30 | for (i = 1; i < c->num_windows; i++) |
824 | ✗ | c->grouping[i] = !get_bits1(&gb); | |
825 | |||
826 | 30 | on2avc_read_ms_info(c, &gb); | |
827 |
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60 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
828 |
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30 | if ((ret = on2avc_read_channel_data(c, &gb, i)) < 0) |
829 | ✗ | return AVERROR_INVALIDDATA; | |
830 |
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30 | if (c->avctx->ch_layout.nb_channels == 2 && c->ms_present) |
831 | ✗ | on2avc_apply_ms(c); | |
832 |
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30 | if (c->window_type < WINDOW_TYPE_EXT4) { |
833 |
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60 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
834 | 30 | on2avc_reconstruct_channel(c, i, dst, offset); | |
835 | } else { | ||
836 | ✗ | on2avc_reconstruct_channel_ext(c, dst, offset); | |
837 | } | ||
838 | |||
839 | 30 | return 0; | |
840 | } | ||
841 | |||
842 | 30 | static int on2avc_decode_frame(AVCodecContext * avctx, AVFrame *frame, | |
843 | int *got_frame_ptr, AVPacket *avpkt) | ||
844 | { | ||
845 | 30 | const uint8_t *buf = avpkt->data; | |
846 | 30 | int buf_size = avpkt->size; | |
847 | 30 | On2AVCContext *c = avctx->priv_data; | |
848 | GetByteContext gb; | ||
849 | 30 | int num_frames = 0, frame_size, audio_off; | |
850 | int ret; | ||
851 | |||
852 |
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30 | if (c->is_av500) { |
853 | /* get output buffer */ | ||
854 | 30 | frame->nb_samples = ON2AVC_SUBFRAME_SIZE; | |
855 |
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30 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |
856 | ✗ | return ret; | |
857 | |||
858 |
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30 | if ((ret = on2avc_decode_subframe(c, buf, buf_size, frame, 0)) < 0) |
859 | ✗ | return ret; | |
860 | } else { | ||
861 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
862 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
863 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
864 | ✗ | if (!frame_size || frame_size > bytestream2_get_bytes_left(&gb)) { | |
865 | ✗ | av_log(avctx, AV_LOG_ERROR, "Invalid subframe size %d\n", | |
866 | frame_size); | ||
867 | ✗ | return AVERROR_INVALIDDATA; | |
868 | } | ||
869 | ✗ | num_frames++; | |
870 | ✗ | bytestream2_skip(&gb, frame_size); | |
871 | } | ||
872 | ✗ | if (!num_frames) { | |
873 | ✗ | av_log(avctx, AV_LOG_ERROR, "No subframes present\n"); | |
874 | ✗ | return AVERROR_INVALIDDATA; | |
875 | } | ||
876 | |||
877 | /* get output buffer */ | ||
878 | ✗ | frame->nb_samples = ON2AVC_SUBFRAME_SIZE * num_frames; | |
879 | ✗ | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) | |
880 | ✗ | return ret; | |
881 | |||
882 | ✗ | audio_off = 0; | |
883 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
884 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
885 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
886 | ✗ | if ((ret = on2avc_decode_subframe(c, gb.buffer, frame_size, | |
887 | frame, audio_off)) < 0) | ||
888 | ✗ | return ret; | |
889 | ✗ | audio_off += ON2AVC_SUBFRAME_SIZE; | |
890 | ✗ | bytestream2_skip(&gb, frame_size); | |
891 | } | ||
892 | } | ||
893 | |||
894 | 30 | *got_frame_ptr = 1; | |
895 | |||
896 | 30 | return buf_size; | |
897 | } | ||
898 | |||
899 | 3 | static av_cold void on2avc_free_vlcs(On2AVCContext *c) | |
900 | { | ||
901 | int i; | ||
902 | |||
903 | 3 | ff_free_vlc(&c->scale_diff); | |
904 |
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48 | for (i = 1; i < 16; i++) |
905 | 45 | ff_free_vlc(&c->cb_vlc[i]); | |
906 | 3 | } | |
907 | |||
908 | 3 | static av_cold int on2avc_decode_init(AVCodecContext *avctx) | |
909 | { | ||
910 | 3 | On2AVCContext *c = avctx->priv_data; | |
911 | 3 | const uint8_t *lens = ff_on2avc_cb_lens; | |
912 | 3 | const uint16_t *syms = ff_on2avc_cb_syms; | |
913 | 3 | int channels = avctx->ch_layout.nb_channels; | |
914 | int i, ret; | ||
915 | |||
916 |
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3 | if (channels > 2U) { |
917 | ✗ | avpriv_request_sample(avctx, "Decoding more than 2 channels"); | |
918 | ✗ | return AVERROR_PATCHWELCOME; | |
919 | } | ||
920 | |||
921 | 3 | c->avctx = avctx; | |
922 | 3 | avctx->sample_fmt = AV_SAMPLE_FMT_FLTP; | |
923 | 3 | av_channel_layout_uninit(&avctx->ch_layout); | |
924 |
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3 | avctx->ch_layout = (channels == 2) ? (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO : |
925 | (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | ||
926 | |||
927 | 3 | c->is_av500 = (avctx->codec_tag == 0x500); | |
928 | |||
929 |
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3 | if (channels == 2) |
930 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
931 | "Stereo mode support is not good, patch is welcome\n"); | ||
932 | |||
933 | // We add -0.01 before ceil() to avoid any values to fall at exactly the | ||
934 | // midpoint between different ceil values. The results are identical to | ||
935 | // using pow(10, i / 10.0) without such bias | ||
936 |
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63 | for (i = 0; i < 20; i++) |
937 | 60 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 16 - 0.01) / 32; | |
938 |
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327 | for (; i < 128; i++) |
939 | 324 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 0.5 - 0.01); | |
940 | |||
941 |
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3 | if (avctx->sample_rate < 32000 || channels == 1) |
942 | 3 | memcpy(c->long_win, ff_on2avc_window_long_24000, | |
943 | 1024 * sizeof(*c->long_win)); | ||
944 | else | ||
945 | ✗ | memcpy(c->long_win, ff_on2avc_window_long_32000, | |
946 | 1024 * sizeof(*c->long_win)); | ||
947 | 3 | memcpy(c->short_win, ff_on2avc_window_short, 128 * sizeof(*c->short_win)); | |
948 | |||
949 | 6 | c->modes = (avctx->sample_rate <= 40000) ? ff_on2avc_modes_40 | |
950 |
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3 | : ff_on2avc_modes_44; |
951 |
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3 | c->wtf = (avctx->sample_rate <= 40000) ? wtf_40 |
952 | : wtf_44; | ||
953 | |||
954 | 3 | ff_mdct_init(&c->mdct, 11, 1, 1.0 / (32768.0 * 1024.0)); | |
955 | 3 | ff_mdct_init(&c->mdct_half, 10, 1, 1.0 / (32768.0 * 512.0)); | |
956 | 3 | ff_mdct_init(&c->mdct_small, 8, 1, 1.0 / (32768.0 * 128.0)); | |
957 | 3 | ff_fft_init(&c->fft128, 6, 0); | |
958 | 3 | ff_fft_init(&c->fft256, 7, 0); | |
959 | 3 | ff_fft_init(&c->fft512, 8, 1); | |
960 | 3 | ff_fft_init(&c->fft1024, 9, 1); | |
961 | 3 | c->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT); | |
962 |
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3 | if (!c->fdsp) |
963 | ✗ | return AVERROR(ENOMEM); | |
964 | |||
965 | 3 | ret = ff_init_vlc_from_lengths(&c->scale_diff, 9, ON2AVC_SCALE_DIFFS, | |
966 | ff_on2avc_scale_diff_bits, 1, | ||
967 | ff_on2avc_scale_diff_syms, 1, 1, -60, 0, avctx); | ||
968 |
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3 | if (ret < 0) |
969 | ✗ | goto vlc_fail; | |
970 |
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48 | for (i = 1; i < 16; i++) { |
971 | 45 | int idx = i - 1; | |
972 | 45 | ret = ff_init_vlc_from_lengths(&c->cb_vlc[i], 9, ff_on2avc_cb_elems[idx], | |
973 | lens, 1, | ||
974 | syms, 2, 2, 0, 0, avctx); | ||
975 |
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45 | if (ret < 0) |
976 | ✗ | goto vlc_fail; | |
977 | 45 | lens += ff_on2avc_cb_elems[idx]; | |
978 | 45 | syms += ff_on2avc_cb_elems[idx]; | |
979 | } | ||
980 | |||
981 | 3 | return 0; | |
982 | ✗ | vlc_fail: | |
983 | ✗ | av_log(avctx, AV_LOG_ERROR, "Cannot init VLC\n"); | |
984 | ✗ | return ret; | |
985 | } | ||
986 | |||
987 | 3 | static av_cold int on2avc_decode_close(AVCodecContext *avctx) | |
988 | { | ||
989 | 3 | On2AVCContext *c = avctx->priv_data; | |
990 | |||
991 | 3 | ff_mdct_end(&c->mdct); | |
992 | 3 | ff_mdct_end(&c->mdct_half); | |
993 | 3 | ff_mdct_end(&c->mdct_small); | |
994 | 3 | ff_fft_end(&c->fft128); | |
995 | 3 | ff_fft_end(&c->fft256); | |
996 | 3 | ff_fft_end(&c->fft512); | |
997 | 3 | ff_fft_end(&c->fft1024); | |
998 | |||
999 | 3 | av_freep(&c->fdsp); | |
1000 | |||
1001 | 3 | on2avc_free_vlcs(c); | |
1002 | |||
1003 | 3 | return 0; | |
1004 | } | ||
1005 | |||
1006 | |||
1007 | const FFCodec ff_on2avc_decoder = { | ||
1008 | .p.name = "on2avc", | ||
1009 | .p.long_name = NULL_IF_CONFIG_SMALL("On2 Audio for Video Codec"), | ||
1010 | .p.type = AVMEDIA_TYPE_AUDIO, | ||
1011 | .p.id = AV_CODEC_ID_ON2AVC, | ||
1012 | .priv_data_size = sizeof(On2AVCContext), | ||
1013 | .init = on2avc_decode_init, | ||
1014 | FF_CODEC_DECODE_CB(on2avc_decode_frame), | ||
1015 | .close = on2avc_decode_close, | ||
1016 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
1017 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP, | ||
1018 | .p.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, | ||
1019 | AV_SAMPLE_FMT_NONE }, | ||
1020 | }; | ||
1021 |