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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.h" | ||
27 | #include "libavutil/mem_internal.h" | ||
28 | #include "libavutil/tx.h" | ||
29 | |||
30 | #include "avcodec.h" | ||
31 | #include "bytestream.h" | ||
32 | #include "codec_internal.h" | ||
33 | #include "decode.h" | ||
34 | #include "get_bits.h" | ||
35 | |||
36 | #include "on2avcdata.h" | ||
37 | |||
38 | #define ON2AVC_SUBFRAME_SIZE 1024 | ||
39 | |||
40 | enum WindowTypes { | ||
41 | WINDOW_TYPE_LONG = 0, | ||
42 | WINDOW_TYPE_LONG_STOP, | ||
43 | WINDOW_TYPE_LONG_START, | ||
44 | WINDOW_TYPE_8SHORT = 3, | ||
45 | WINDOW_TYPE_EXT4, | ||
46 | WINDOW_TYPE_EXT5, | ||
47 | WINDOW_TYPE_EXT6, | ||
48 | WINDOW_TYPE_EXT7, | ||
49 | }; | ||
50 | |||
51 | typedef struct On2AVCContext { | ||
52 | AVCodecContext *avctx; | ||
53 | AVFloatDSPContext *fdsp; | ||
54 | AVTXContext *mdct, *mdct_half, *mdct_small; | ||
55 | AVTXContext *fft64, *fft128, *fft256, *fft512; | ||
56 | av_tx_fn mdct_fn, mdct_half_fn, mdct_small_fn; | ||
57 | av_tx_fn fft64_fn, fft128_fn, fft256_fn, fft512_fn; | ||
58 | void (*wtf)(struct On2AVCContext *ctx, float *out, float *in, int size); | ||
59 | |||
60 | int is_av500; | ||
61 | |||
62 | const On2AVCMode *modes; | ||
63 | int window_type, prev_window_type; | ||
64 | int num_windows, num_bands; | ||
65 | int bits_per_section; | ||
66 | const int *band_start; | ||
67 | |||
68 | int grouping[8]; | ||
69 | int ms_present; | ||
70 | int ms_info[ON2AVC_MAX_BANDS]; | ||
71 | |||
72 | int is_long; | ||
73 | |||
74 | uint8_t band_type[ON2AVC_MAX_BANDS]; | ||
75 | uint8_t band_run_end[ON2AVC_MAX_BANDS]; | ||
76 | int num_sections; | ||
77 | |||
78 | float band_scales[ON2AVC_MAX_BANDS]; | ||
79 | |||
80 | VLC scale_diff; | ||
81 | VLC cb_vlc[16]; | ||
82 | |||
83 | float scale_tab[128]; | ||
84 | |||
85 | DECLARE_ALIGNED(32, float, coeffs)[2][ON2AVC_SUBFRAME_SIZE]; | ||
86 | DECLARE_ALIGNED(32, float, delay) [2][ON2AVC_SUBFRAME_SIZE]; | ||
87 | |||
88 | DECLARE_ALIGNED(32, float, temp) [ON2AVC_SUBFRAME_SIZE * 2]; | ||
89 | DECLARE_ALIGNED(32, float, mdct_buf) [ON2AVC_SUBFRAME_SIZE]; | ||
90 | DECLARE_ALIGNED(32, float, long_win) [ON2AVC_SUBFRAME_SIZE]; | ||
91 | DECLARE_ALIGNED(32, float, short_win)[ON2AVC_SUBFRAME_SIZE / 8]; | ||
92 | } On2AVCContext; | ||
93 | |||
94 | 39 | static void on2avc_read_ms_info(On2AVCContext *c, GetBitContext *gb) | |
95 | { | ||
96 | 39 | int w, b, band_off = 0; | |
97 | |||
98 | 39 | c->ms_present = get_bits1(gb); | |
99 |
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39 | if (!c->ms_present) |
100 | 39 | return; | |
101 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
102 | ✗ | if (!c->grouping[w]) { | |
103 | ✗ | memcpy(c->ms_info + band_off, | |
104 | ✗ | c->ms_info + band_off - c->num_bands, | |
105 | ✗ | c->num_bands * sizeof(*c->ms_info)); | |
106 | ✗ | band_off += c->num_bands; | |
107 | ✗ | continue; | |
108 | } | ||
109 | ✗ | for (b = 0; b < c->num_bands; b++) | |
110 | ✗ | c->ms_info[band_off++] = get_bits1(gb); | |
111 | } | ||
112 | } | ||
113 | |||
114 | // do not see Table 17 in ISO/IEC 13818-7 | ||
115 | 39 | static int on2avc_decode_band_types(On2AVCContext *c, GetBitContext *gb) | |
116 | { | ||
117 |
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39 | int bits_per_sect = c->is_long ? 5 : 3; |
118 | 39 | int esc_val = (1 << bits_per_sect) - 1; | |
119 | 39 | int num_bands = c->num_bands * c->num_windows; | |
120 | 39 | int band = 0, i, band_type, run_len, run; | |
121 | |||
122 |
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322 | while (band < num_bands) { |
123 | 283 | band_type = get_bits(gb, 4); | |
124 | 283 | run_len = 1; | |
125 | do { | ||
126 | 283 | run = get_bits(gb, bits_per_sect); | |
127 |
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283 | if (run > num_bands - band - run_len) { |
128 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid band type run\n"); | |
129 | ✗ | return AVERROR_INVALIDDATA; | |
130 | } | ||
131 | 283 | run_len += run; | |
132 |
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283 | } while (run == esc_val); |
133 |
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2194 | for (i = band; i < band + run_len; i++) { |
134 | 1911 | c->band_type[i] = band_type; | |
135 | 1911 | c->band_run_end[i] = band + run_len; | |
136 | } | ||
137 | 283 | band += run_len; | |
138 | } | ||
139 | |||
140 | 39 | return 0; | |
141 | } | ||
142 | |||
143 | // completely not like Table 18 in ISO/IEC 13818-7 | ||
144 | // (no intensity stereo, different coding for the first coefficient) | ||
145 | 39 | static int on2avc_decode_band_scales(On2AVCContext *c, GetBitContext *gb) | |
146 | { | ||
147 | 39 | int w, w2, b, scale, first = 1; | |
148 | 39 | int band_off = 0; | |
149 | |||
150 |
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78 | for (w = 0; w < c->num_windows; w++) { |
151 |
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39 | if (!c->grouping[w]) { |
152 | ✗ | memcpy(c->band_scales + band_off, | |
153 | ✗ | c->band_scales + band_off - c->num_bands, | |
154 | ✗ | c->num_bands * sizeof(*c->band_scales)); | |
155 | ✗ | band_off += c->num_bands; | |
156 | ✗ | continue; | |
157 | } | ||
158 |
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1950 | for (b = 0; b < c->num_bands; b++) { |
159 |
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1911 | if (!c->band_type[band_off]) { |
160 | 274 | int all_zero = 1; | |
161 |
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274 | for (w2 = w + 1; w2 < c->num_windows; w2++) { |
162 | ✗ | if (c->grouping[w2]) | |
163 | ✗ | break; | |
164 | ✗ | if (c->band_type[w2 * c->num_bands + b]) { | |
165 | ✗ | all_zero = 0; | |
166 | ✗ | break; | |
167 | } | ||
168 | } | ||
169 |
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274 | if (all_zero) { |
170 | 274 | c->band_scales[band_off++] = 0; | |
171 | 274 | continue; | |
172 | } | ||
173 | } | ||
174 |
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1637 | if (first) { |
175 | 39 | scale = get_bits(gb, 7); | |
176 | 39 | first = 0; | |
177 | } else { | ||
178 | 1598 | scale += get_vlc2(gb, c->scale_diff.table, 9, 3); | |
179 | } | ||
180 |
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1637 | if (scale < 0 || scale > 127) { |
181 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\n", | |
182 | scale); | ||
183 | ✗ | return AVERROR_INVALIDDATA; | |
184 | } | ||
185 | 1637 | c->band_scales[band_off++] = c->scale_tab[scale]; | |
186 | } | ||
187 | } | ||
188 | |||
189 | 39 | return 0; | |
190 | } | ||
191 | |||
192 | 26820 | static inline float on2avc_scale(int v, float scale) | |
193 | { | ||
194 | 26820 | return v * sqrtf(abs(v)) * scale; | |
195 | } | ||
196 | |||
197 | // spectral data is coded completely differently - there are no unsigned codebooks | ||
198 | 1627 | static int on2avc_decode_quads(On2AVCContext *c, GetBitContext *gb, float *dst, | |
199 | int dst_size, int type, float band_scale) | ||
200 | { | ||
201 | int i, j, val, val1; | ||
202 | |||
203 |
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8322 | for (i = 0; i < dst_size; i += 4) { |
204 | 6695 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
205 | |||
206 |
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33475 | for (j = 0; j < 4; j++) { |
207 | 26780 | val1 = sign_extend((val >> (12 - j * 4)) & 0xF, 4); | |
208 | 26780 | *dst++ = on2avc_scale(val1, band_scale); | |
209 | } | ||
210 | } | ||
211 | |||
212 | 1627 | return 0; | |
213 | } | ||
214 | |||
215 | 2 | static inline int get_egolomb(GetBitContext *gb) | |
216 | { | ||
217 | 2 | int v = 4; | |
218 | |||
219 |
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3 | while (get_bits1(gb)) { |
220 | 1 | v++; | |
221 |
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1 | if (v > 30) { |
222 | ✗ | av_log(NULL, AV_LOG_WARNING, "Too large golomb code in get_egolomb.\n"); | |
223 | ✗ | v = 30; | |
224 | ✗ | break; | |
225 | } | ||
226 | } | ||
227 | |||
228 | 2 | return (1 << v) + get_bits_long(gb, v); | |
229 | } | ||
230 | |||
231 | 10 | static int on2avc_decode_pairs(On2AVCContext *c, GetBitContext *gb, float *dst, | |
232 | int dst_size, int type, float band_scale) | ||
233 | { | ||
234 | int i, val, val1, val2, sign; | ||
235 | |||
236 |
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30 | for (i = 0; i < dst_size; i += 2) { |
237 | 20 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
238 | |||
239 | 20 | val1 = sign_extend(val >> 8, 8); | |
240 | 20 | val2 = sign_extend(val & 0xFF, 8); | |
241 |
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20 | if (type == ON2AVC_ESC_CB) { |
242 |
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6 | if (val1 <= -16 || val1 >= 16) { |
243 | 1 | sign = 1 - (val1 < 0) * 2; | |
244 | 1 | val1 = sign * get_egolomb(gb); | |
245 | } | ||
246 |
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6 | if (val2 <= -16 || val2 >= 16) { |
247 | 1 | sign = 1 - (val2 < 0) * 2; | |
248 | 1 | val2 = sign * get_egolomb(gb); | |
249 | } | ||
250 | } | ||
251 | |||
252 | 20 | *dst++ = on2avc_scale(val1, band_scale); | |
253 | 20 | *dst++ = on2avc_scale(val2, band_scale); | |
254 | } | ||
255 | |||
256 | 10 | return 0; | |
257 | } | ||
258 | |||
259 | 39 | static int on2avc_read_channel_data(On2AVCContext *c, GetBitContext *gb, int ch) | |
260 | { | ||
261 | int ret; | ||
262 | int w, b, band_idx; | ||
263 | float *coeff_ptr; | ||
264 | |||
265 |
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39 | if ((ret = on2avc_decode_band_types(c, gb)) < 0) |
266 | ✗ | return ret; | |
267 |
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39 | if ((ret = on2avc_decode_band_scales(c, gb)) < 0) |
268 | ✗ | return ret; | |
269 | |||
270 | 39 | coeff_ptr = c->coeffs[ch]; | |
271 | 39 | band_idx = 0; | |
272 | 39 | memset(coeff_ptr, 0, ON2AVC_SUBFRAME_SIZE * sizeof(*coeff_ptr)); | |
273 |
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78 | for (w = 0; w < c->num_windows; w++) { |
274 |
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1950 | for (b = 0; b < c->num_bands; b++) { |
275 | 1911 | int band_size = c->band_start[b + 1] - c->band_start[b]; | |
276 | 1911 | int band_type = c->band_type[band_idx + b]; | |
277 | |||
278 |
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1911 | if (!band_type) { |
279 | 274 | coeff_ptr += band_size; | |
280 | 274 | continue; | |
281 | } | ||
282 |
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1637 | if (band_type < 9) |
283 | 1627 | on2avc_decode_quads(c, gb, coeff_ptr, band_size, band_type, | |
284 | 1627 | c->band_scales[band_idx + b]); | |
285 | else | ||
286 | 10 | on2avc_decode_pairs(c, gb, coeff_ptr, band_size, band_type, | |
287 | 10 | c->band_scales[band_idx + b]); | |
288 | 1637 | coeff_ptr += band_size; | |
289 | } | ||
290 | 39 | band_idx += c->num_bands; | |
291 | } | ||
292 | |||
293 | 39 | return 0; | |
294 | } | ||
295 | |||
296 | ✗ | static int on2avc_apply_ms(On2AVCContext *c) | |
297 | { | ||
298 | int w, b, i; | ||
299 | ✗ | int band_off = 0; | |
300 | ✗ | float *ch0 = c->coeffs[0]; | |
301 | ✗ | float *ch1 = c->coeffs[1]; | |
302 | |||
303 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
304 | ✗ | for (b = 0; b < c->num_bands; b++) { | |
305 | ✗ | if (c->ms_info[band_off + b]) { | |
306 | ✗ | for (i = c->band_start[b]; i < c->band_start[b + 1]; i++) { | |
307 | ✗ | float l = *ch0, r = *ch1; | |
308 | ✗ | *ch0++ = l + r; | |
309 | ✗ | *ch1++ = l - r; | |
310 | } | ||
311 | } else { | ||
312 | ✗ | ch0 += c->band_start[b + 1] - c->band_start[b]; | |
313 | ✗ | ch1 += c->band_start[b + 1] - c->band_start[b]; | |
314 | } | ||
315 | } | ||
316 | ✗ | band_off += c->num_bands; | |
317 | } | ||
318 | ✗ | return 0; | |
319 | } | ||
320 | |||
321 | ✗ | static void zero_head_and_tail(float *src, int len, int order0, int order1) | |
322 | { | ||
323 | ✗ | memset(src, 0, sizeof(*src) * order0); | |
324 | ✗ | memset(src + len - order1, 0, sizeof(*src) * order1); | |
325 | ✗ | } | |
326 | |||
327 | ✗ | static void pretwiddle(float *src, float *dst, int dst_len, int tab_step, | |
328 | int step, int order0, int order1, const double * const *tabs) | ||
329 | { | ||
330 | float *src2, *out; | ||
331 | const double *tab; | ||
332 | int i, j; | ||
333 | |||
334 | ✗ | out = dst; | |
335 | ✗ | tab = tabs[0]; | |
336 | ✗ | for (i = 0; i < tab_step; i++) { | |
337 | ✗ | double sum = 0; | |
338 | ✗ | for (j = 0; j < order0; j++) | |
339 | ✗ | sum += src[j] * tab[j * tab_step + i]; | |
340 | ✗ | out[i] += sum; | |
341 | } | ||
342 | |||
343 | ✗ | out = dst + dst_len - tab_step; | |
344 | ✗ | tab = tabs[order0]; | |
345 | ✗ | src2 = src + (dst_len - tab_step) / step + 1 + order0; | |
346 | ✗ | for (i = 0; i < tab_step; i++) { | |
347 | ✗ | double sum = 0; | |
348 | ✗ | for (j = 0; j < order1; j++) | |
349 | ✗ | sum += src2[j] * tab[j * tab_step + i]; | |
350 | ✗ | out[i] += sum; | |
351 | } | ||
352 | ✗ | } | |
353 | |||
354 | ✗ | static void twiddle(float *src1, float *src2, int src2_len, | |
355 | const double *tab, int tab_len, int step, | ||
356 | int order0, int order1, const double * const *tabs) | ||
357 | { | ||
358 | int steps; | ||
359 | int mask; | ||
360 | int i, j; | ||
361 | |||
362 | ✗ | steps = (src2_len - tab_len) / step + 1; | |
363 | ✗ | pretwiddle(src1, src2, src2_len, tab_len, step, order0, order1, tabs); | |
364 | ✗ | mask = tab_len - 1; | |
365 | |||
366 | ✗ | for (i = 0; i < steps; i++) { | |
367 | ✗ | float in0 = src1[order0 + i]; | |
368 | ✗ | int pos = (src2_len - 1) & mask; | |
369 | |||
370 | ✗ | if (pos < tab_len) { | |
371 | ✗ | const double *t = tab; | |
372 | ✗ | for (j = pos; j >= 0; j--) | |
373 | ✗ | src2[j] += in0 * *t++; | |
374 | ✗ | for (j = 0; j < tab_len - pos - 1; j++) | |
375 | ✗ | src2[src2_len - j - 1] += in0 * tab[pos + 1 + j]; | |
376 | } else { | ||
377 | ✗ | for (j = 0; j < tab_len; j++) | |
378 | ✗ | src2[pos - j] += in0 * tab[j]; | |
379 | } | ||
380 | ✗ | mask = pos + step; | |
381 | } | ||
382 | ✗ | } | |
383 | |||
384 | #define CMUL1_R(s, t, is, it) \ | ||
385 | s[is + 0] * t[it + 0] - s[is + 1] * t[it + 1] | ||
386 | #define CMUL1_I(s, t, is, it) \ | ||
387 | s[is + 0] * t[it + 1] + s[is + 1] * t[it + 0] | ||
388 | #define CMUL2_R(s, t, is, it) \ | ||
389 | s[is + 0] * t[it + 0] + s[is + 1] * t[it + 1] | ||
390 | #define CMUL2_I(s, t, is, it) \ | ||
391 | s[is + 0] * t[it + 1] - s[is + 1] * t[it + 0] | ||
392 | |||
393 | #define CMUL0(dst, id, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
394 | dst[id] = s0[is] * t0[it] + s1[is] * t1[it] \ | ||
395 | + s2[is] * t2[it] + s3[is] * t3[it]; \ | ||
396 | dst[id + 1] = s0[is] * t0[it + 1] + s1[is] * t1[it + 1] \ | ||
397 | + s2[is] * t2[it + 1] + s3[is] * t3[it + 1]; | ||
398 | |||
399 | #define CMUL1(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
400 | *dst++ = CMUL1_R(s0, t0, is, it) \ | ||
401 | + CMUL1_R(s1, t1, is, it) \ | ||
402 | + CMUL1_R(s2, t2, is, it) \ | ||
403 | + CMUL1_R(s3, t3, is, it); \ | ||
404 | *dst++ = CMUL1_I(s0, t0, is, it) \ | ||
405 | + CMUL1_I(s1, t1, is, it) \ | ||
406 | + CMUL1_I(s2, t2, is, it) \ | ||
407 | + CMUL1_I(s3, t3, is, it); | ||
408 | |||
409 | #define CMUL2(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
410 | *dst++ = CMUL2_R(s0, t0, is, it) \ | ||
411 | + CMUL2_R(s1, t1, is, it) \ | ||
412 | + CMUL2_R(s2, t2, is, it) \ | ||
413 | + CMUL2_R(s3, t3, is, it); \ | ||
414 | *dst++ = CMUL2_I(s0, t0, is, it) \ | ||
415 | + CMUL2_I(s1, t1, is, it) \ | ||
416 | + CMUL2_I(s2, t2, is, it) \ | ||
417 | + CMUL2_I(s3, t3, is, it); | ||
418 | |||
419 | ✗ | static void combine_fft(float *s0, float *s1, float *s2, float *s3, float *dst, | |
420 | const float *t0, const float *t1, | ||
421 | const float *t2, const float *t3, int len, int step) | ||
422 | { | ||
423 | const float *h0, *h1, *h2, *h3; | ||
424 | float *d1, *d2; | ||
425 | int tmp, half; | ||
426 | ✗ | int len2 = len >> 1, len4 = len >> 2; | |
427 | int hoff; | ||
428 | int i, j, k; | ||
429 | |||
430 | ✗ | tmp = step; | |
431 | ✗ | for (half = len2; tmp > 1; half <<= 1, tmp >>= 1); | |
432 | |||
433 | ✗ | h0 = t0 + half; | |
434 | ✗ | h1 = t1 + half; | |
435 | ✗ | h2 = t2 + half; | |
436 | ✗ | h3 = t3 + half; | |
437 | |||
438 | ✗ | CMUL0(dst, 0, s0, s1, s2, s3, t0, t1, t2, t3, 0, 0); | |
439 | |||
440 | ✗ | hoff = 2 * step * (len4 >> 1); | |
441 | |||
442 | ✗ | j = 2; | |
443 | ✗ | k = 2 * step; | |
444 | ✗ | d1 = dst + 2; | |
445 | ✗ | d2 = dst + 2 + (len >> 1); | |
446 | ✗ | for (i = 0; i < (len4 - 1) >> 1; i++) { | |
447 | ✗ | CMUL1(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
448 | ✗ | CMUL1(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
449 | ✗ | j += 2; | |
450 | ✗ | k += 2 * step; | |
451 | } | ||
452 | ✗ | CMUL0(dst, len4, s0, s1, s2, s3, t0, t1, t2, t3, 1, hoff); | |
453 | ✗ | CMUL0(dst, len4 + len2, s0, s1, s2, s3, h0, h1, h2, h3, 1, hoff); | |
454 | |||
455 | ✗ | j = len4; | |
456 | ✗ | k = hoff + 2 * step * len4; | |
457 | ✗ | d1 = dst + len4 + 2; | |
458 | ✗ | d2 = dst + len4 + 2 + len2; | |
459 | ✗ | for (i = 0; i < (len4 - 2) >> 1; i++) { | |
460 | ✗ | CMUL2(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
461 | ✗ | CMUL2(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
462 | ✗ | j -= 2; | |
463 | ✗ | k += 2 * step; | |
464 | } | ||
465 | ✗ | CMUL0(dst, len2 + 4, s0, s1, s2, s3, t0, t1, t2, t3, 0, k); | |
466 | ✗ | } | |
467 | |||
468 | ✗ | static void wtf_end_512(On2AVCContext *c, float *out, float *src, | |
469 | float *tmp0, float *tmp1) | ||
470 | { | ||
471 | ✗ | memcpy(tmp1, tmp0, 384 * sizeof(*tmp0)); | |
472 | ✗ | memcpy(tmp0 + 384, tmp1 + 384, 128 * sizeof(*tmp0)); | |
473 | |||
474 | ✗ | zero_head_and_tail(tmp1, 128, 16, 4); | |
475 | ✗ | zero_head_and_tail(tmp1 + 128, 128, 16, 4); | |
476 | ✗ | zero_head_and_tail(tmp1 + 256, 128, 13, 7); | |
477 | ✗ | zero_head_and_tail(tmp1 + 384, 128, 15, 5); | |
478 | |||
479 | ✗ | c->fft64_fn(c->fft64, src + 0, tmp1 + 0, sizeof(float)); | |
480 | ✗ | c->fft64_fn(c->fft64, src + 128, tmp1 + 128, sizeof(float)); | |
481 | ✗ | c->fft64_fn(c->fft64, src + 256, tmp1 + 256, sizeof(float)); | |
482 | ✗ | c->fft64_fn(c->fft64, src + 384, tmp1 + 384, sizeof(float)); | |
483 | |||
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 | |||
488 | ✗ | c->fft256_fn(c->fft256, src, tmp1, sizeof(float)); | |
489 | |||
490 | ✗ | pretwiddle(&tmp0[ 0], src, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
491 | ✗ | pretwiddle(&tmp0[128], src, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
492 | ✗ | pretwiddle(&tmp0[256], src, 512, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
493 | ✗ | pretwiddle(&tmp0[384], src, 512, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
494 | ✗ | } | |
495 | |||
496 | ✗ | static void wtf_end_1024(On2AVCContext *c, float *out, float *src, | |
497 | float *tmp0, float *tmp1) | ||
498 | { | ||
499 | ✗ | memcpy(tmp1, tmp0, 768 * sizeof(*tmp0)); | |
500 | ✗ | memcpy(tmp0 + 768, tmp1 + 768, 256 * sizeof(*tmp0)); | |
501 | |||
502 | ✗ | zero_head_and_tail(tmp1, 256, 16, 4); | |
503 | ✗ | zero_head_and_tail(tmp1 + 256, 256, 16, 4); | |
504 | ✗ | zero_head_and_tail(tmp1 + 512, 256, 13, 7); | |
505 | ✗ | zero_head_and_tail(tmp1 + 768, 256, 15, 5); | |
506 | |||
507 | ✗ | c->fft128_fn(c->fft128, src + 0, tmp1 + 0, sizeof(float)); | |
508 | ✗ | c->fft128_fn(c->fft128, src + 256, tmp1 + 256, sizeof(float)); | |
509 | ✗ | c->fft128_fn(c->fft128, src + 512, tmp1 + 512, sizeof(float)); | |
510 | ✗ | c->fft128_fn(c->fft128, src + 768, tmp1 + 768, sizeof(float)); | |
511 | |||
512 | ✗ | combine_fft(src, src + 256, src + 512, src + 768, tmp1, | |
513 | ff_on2avc_ctab_1, ff_on2avc_ctab_2, | ||
514 | ff_on2avc_ctab_3, ff_on2avc_ctab_4, 1024, 1); | ||
515 | |||
516 | ✗ | c->fft512_fn(c->fft512, src, tmp1, sizeof(float)); | |
517 | |||
518 | ✗ | pretwiddle(&tmp0[ 0], src, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
519 | ✗ | pretwiddle(&tmp0[256], src, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
520 | ✗ | pretwiddle(&tmp0[512], src, 1024, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
521 | ✗ | pretwiddle(&tmp0[768], src, 1024, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
522 | ✗ | } | |
523 | |||
524 | ✗ | static void wtf_40(On2AVCContext *c, float *out, float *src, int size) | |
525 | { | ||
526 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
527 | |||
528 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
529 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
530 | |||
531 | ✗ | if (size == 512) { | |
532 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
533 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
534 | ✗ | twiddle(src + 16, &tmp0[ 16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
535 | ✗ | twiddle(src + 24, &tmp0[ 16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
536 | ✗ | twiddle(src + 32, &tmp0[ 32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
537 | ✗ | twiddle(src + 40, &tmp0[ 32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
538 | ✗ | twiddle(src + 48, &tmp0[ 48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
539 | ✗ | twiddle(src + 56, &tmp0[ 48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
540 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
541 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
542 | ✗ | twiddle(&tmp0[32], &tmp1[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
543 | ✗ | twiddle(&tmp0[48], &tmp1[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
544 | ✗ | twiddle(src + 64, &tmp1[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
545 | ✗ | twiddle(src + 80, &tmp1[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
546 | ✗ | twiddle(src + 96, &tmp1[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
547 | ✗ | twiddle(src + 112, &tmp1[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
548 | ✗ | twiddle(src + 128, &tmp1[128], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
549 | ✗ | twiddle(src + 144, &tmp1[128], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
550 | ✗ | twiddle(src + 160, &tmp1[160], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
551 | ✗ | twiddle(src + 176, &tmp1[160], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
552 | |||
553 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
554 | |||
555 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
556 | ✗ | twiddle(&tmp1[ 32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
557 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
558 | ✗ | twiddle(&tmp1[ 96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
559 | ✗ | twiddle(&tmp1[128], &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
560 | ✗ | twiddle(&tmp1[160], &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
561 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
562 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
563 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
564 | ✗ | twiddle(src + 288, &tmp0[256], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
565 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
566 | ✗ | twiddle(src + 352, &tmp0[256], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
567 | |||
568 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
569 | } else { | ||
570 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
571 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
572 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
573 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
574 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
575 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
576 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
577 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
578 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
579 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
580 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
581 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
582 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
583 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
584 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
585 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
586 | ✗ | twiddle(src + 256, &tmp1[256], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
587 | ✗ | twiddle(src + 288, &tmp1[256], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
588 | ✗ | twiddle(src + 320, &tmp1[320], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
589 | ✗ | twiddle(src + 352, &tmp1[320], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
590 | |||
591 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
592 | |||
593 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
594 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
595 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
596 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
597 | ✗ | twiddle(&tmp1[256], &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
598 | ✗ | twiddle(&tmp1[320], &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
599 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
600 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
601 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
602 | ✗ | twiddle(src + 576, &tmp0[512], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
603 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
604 | ✗ | twiddle(src + 704, &tmp0[512], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
605 | |||
606 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
607 | } | ||
608 | ✗ | } | |
609 | |||
610 | ✗ | static void wtf_44(On2AVCContext *c, float *out, float *src, int size) | |
611 | { | ||
612 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
613 | |||
614 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
615 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
616 | |||
617 | ✗ | if (size == 512) { | |
618 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
619 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
620 | ✗ | twiddle(src + 16, &tmp0[16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
621 | ✗ | twiddle(src + 24, &tmp0[16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
622 | ✗ | twiddle(src + 32, &tmp0[32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
623 | ✗ | twiddle(src + 40, &tmp0[32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
624 | ✗ | twiddle(src + 48, &tmp0[48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
625 | ✗ | twiddle(src + 56, &tmp0[48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
626 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
627 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
628 | ✗ | twiddle(&tmp0[32], &tmp1[32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
629 | ✗ | twiddle(&tmp0[48], &tmp1[32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
630 | ✗ | twiddle(src + 64, &tmp1[64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
631 | ✗ | twiddle(src + 80, &tmp1[64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
632 | ✗ | twiddle(src + 96, &tmp1[96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
633 | ✗ | twiddle(src + 112, &tmp1[96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
634 | |||
635 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
636 | |||
637 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
638 | ✗ | twiddle(&tmp1[32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
639 | ✗ | twiddle(&tmp1[64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
640 | ✗ | twiddle(&tmp1[96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
641 | ✗ | twiddle(src + 128, &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
642 | ✗ | twiddle(src + 160, &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
643 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
644 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
645 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
646 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
647 | |||
648 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
649 | } else { | ||
650 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
651 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
652 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
653 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
654 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
655 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
656 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
657 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
658 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
659 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
660 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
661 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
662 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
663 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
664 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
665 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
666 | |||
667 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
668 | |||
669 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
670 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
671 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
672 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
673 | ✗ | twiddle(src + 256, &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
674 | ✗ | twiddle(src + 320, &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
675 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
676 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
677 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
678 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
679 | |||
680 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
681 | } | ||
682 | ✗ | } | |
683 | |||
684 | ✗ | static int on2avc_reconstruct_channel_ext(On2AVCContext *c, AVFrame *dst, int offset) | |
685 | { | ||
686 | int ch, i; | ||
687 | |||
688 | ✗ | for (ch = 0; ch < c->avctx->ch_layout.nb_channels; ch++) { | |
689 | ✗ | float *out = (float*)dst->extended_data[ch] + offset; | |
690 | ✗ | float *in = c->coeffs[ch]; | |
691 | ✗ | float *saved = c->delay[ch]; | |
692 | ✗ | float *buf = c->mdct_buf; | |
693 | ✗ | float *wout = out + 448; | |
694 | |||
695 | ✗ | switch (c->window_type) { | |
696 | ✗ | case WINDOW_TYPE_EXT7: | |
697 | ✗ | c->mdct_fn(c->mdct, buf, in, sizeof(float)); | |
698 | ✗ | break; | |
699 | ✗ | case WINDOW_TYPE_EXT4: | |
700 | ✗ | c->wtf(c, buf, in, 1024); | |
701 | ✗ | break; | |
702 | ✗ | case WINDOW_TYPE_EXT5: | |
703 | ✗ | c->wtf(c, buf, in, 512); | |
704 | ✗ | c->mdct_half_fn(c->mdct_half, buf + 512, in + 512, sizeof(float)); | |
705 | ✗ | for (i = 0; i < 256; i++) { | |
706 | ✗ | FFSWAP(float, buf[i + 512], buf[1023 - i]); | |
707 | } | ||
708 | ✗ | break; | |
709 | ✗ | case WINDOW_TYPE_EXT6: | |
710 | ✗ | c->mdct_half_fn(c->mdct_half, buf, in, sizeof(float)); | |
711 | ✗ | for (i = 0; i < 256; i++) { | |
712 | ✗ | FFSWAP(float, buf[i], buf[511 - i]); | |
713 | } | ||
714 | ✗ | c->wtf(c, buf + 512, in + 512, 512); | |
715 | ✗ | break; | |
716 | } | ||
717 | |||
718 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
719 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
720 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
721 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
722 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
723 | } | ||
724 | |||
725 | ✗ | return 0; | |
726 | } | ||
727 | |||
728 | // not borrowed from aacdec.c - the codec has original design after all | ||
729 | 39 | static int on2avc_reconstruct_channel(On2AVCContext *c, int channel, | |
730 | AVFrame *dst, int offset) | ||
731 | { | ||
732 | int i; | ||
733 | 39 | float *out = (float*)dst->extended_data[channel] + offset; | |
734 | 39 | float *in = c->coeffs[channel]; | |
735 | 39 | float *saved = c->delay[channel]; | |
736 | 39 | float *buf = c->mdct_buf; | |
737 | 39 | float *temp = c->temp; | |
738 | |||
739 |
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39 | switch (c->window_type) { |
740 | 39 | case WINDOW_TYPE_LONG_START: | |
741 | case WINDOW_TYPE_LONG_STOP: | ||
742 | case WINDOW_TYPE_LONG: | ||
743 | 39 | c->mdct_fn(c->mdct, buf, in, sizeof(float)); | |
744 | 39 | break; | |
745 | ✗ | case WINDOW_TYPE_8SHORT: | |
746 | ✗ | for (i = 0; i < ON2AVC_SUBFRAME_SIZE; i += ON2AVC_SUBFRAME_SIZE / 8) | |
747 | ✗ | c->mdct_small_fn(c->mdct_small, buf + i, in + i, sizeof(float)); | |
748 | ✗ | break; | |
749 | } | ||
750 | |||
751 |
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39 | if ((c->prev_window_type == WINDOW_TYPE_LONG || |
752 | ✗ | c->prev_window_type == WINDOW_TYPE_LONG_STOP) && | |
753 |
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39 | (c->window_type == WINDOW_TYPE_LONG || |
754 | ✗ | c->window_type == WINDOW_TYPE_LONG_START)) { | |
755 | 39 | c->fdsp->vector_fmul_window(out, saved, buf, c->long_win, 512); | |
756 | } else { | ||
757 | ✗ | float *wout = out + 448; | |
758 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
759 | |||
760 | ✗ | if (c->window_type == WINDOW_TYPE_8SHORT) { | |
761 | ✗ | c->fdsp->vector_fmul_window(wout + 0*128, saved + 448, buf + 0*128, c->short_win, 64); | |
762 | ✗ | c->fdsp->vector_fmul_window(wout + 1*128, buf + 0*128 + 64, buf + 1*128, c->short_win, 64); | |
763 | ✗ | c->fdsp->vector_fmul_window(wout + 2*128, buf + 1*128 + 64, buf + 2*128, c->short_win, 64); | |
764 | ✗ | c->fdsp->vector_fmul_window(wout + 3*128, buf + 2*128 + 64, buf + 3*128, c->short_win, 64); | |
765 | ✗ | c->fdsp->vector_fmul_window(temp, buf + 3*128 + 64, buf + 4*128, c->short_win, 64); | |
766 | ✗ | memcpy(wout + 4*128, temp, 64 * sizeof(float)); | |
767 | } else { | ||
768 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
769 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
770 | } | ||
771 | } | ||
772 | |||
773 | // buffer update | ||
774 |
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39 | switch (c->window_type) { |
775 | ✗ | case WINDOW_TYPE_8SHORT: | |
776 | ✗ | memcpy(saved, temp + 64, 64 * sizeof(float)); | |
777 | ✗ | c->fdsp->vector_fmul_window(saved + 64, buf + 4*128 + 64, buf + 5*128, c->short_win, 64); | |
778 | ✗ | c->fdsp->vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, c->short_win, 64); | |
779 | ✗ | c->fdsp->vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, c->short_win, 64); | |
780 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
781 | ✗ | break; | |
782 | ✗ | case WINDOW_TYPE_LONG_START: | |
783 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
784 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
785 | ✗ | break; | |
786 | 39 | case WINDOW_TYPE_LONG_STOP: | |
787 | case WINDOW_TYPE_LONG: | ||
788 | 39 | memcpy(saved, buf + 512, 512 * sizeof(float)); | |
789 | 39 | break; | |
790 | } | ||
791 | 39 | return 0; | |
792 | } | ||
793 | |||
794 | 39 | static int on2avc_decode_subframe(On2AVCContext *c, const uint8_t *buf, | |
795 | int buf_size, AVFrame *dst, int offset) | ||
796 | { | ||
797 | GetBitContext gb; | ||
798 | int i, ret; | ||
799 | |||
800 |
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39 | if ((ret = init_get_bits8(&gb, buf, buf_size)) < 0) |
801 | ✗ | return ret; | |
802 | |||
803 |
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39 | if (get_bits1(&gb)) { |
804 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "enh bit set\n"); | |
805 | ✗ | return AVERROR_INVALIDDATA; | |
806 | } | ||
807 | 39 | c->prev_window_type = c->window_type; | |
808 | 39 | c->window_type = get_bits(&gb, 3); | |
809 | |||
810 | 39 | c->band_start = c->modes[c->window_type].band_start; | |
811 | 39 | c->num_windows = c->modes[c->window_type].num_windows; | |
812 | 39 | c->num_bands = c->modes[c->window_type].num_bands; | |
813 | 39 | c->is_long = (c->window_type != WINDOW_TYPE_8SHORT); | |
814 | |||
815 | 39 | c->grouping[0] = 1; | |
816 |
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39 | for (i = 1; i < c->num_windows; i++) |
817 | ✗ | c->grouping[i] = !get_bits1(&gb); | |
818 | |||
819 | 39 | on2avc_read_ms_info(c, &gb); | |
820 |
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78 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
821 |
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39 | if ((ret = on2avc_read_channel_data(c, &gb, i)) < 0) |
822 | ✗ | return AVERROR_INVALIDDATA; | |
823 |
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39 | if (c->avctx->ch_layout.nb_channels == 2 && c->ms_present) |
824 | ✗ | on2avc_apply_ms(c); | |
825 |
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39 | if (c->window_type < WINDOW_TYPE_EXT4) { |
826 |
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78 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
827 | 39 | on2avc_reconstruct_channel(c, i, dst, offset); | |
828 | } else { | ||
829 | ✗ | on2avc_reconstruct_channel_ext(c, dst, offset); | |
830 | } | ||
831 | |||
832 | 39 | return 0; | |
833 | } | ||
834 | |||
835 | 39 | static int on2avc_decode_frame(AVCodecContext * avctx, AVFrame *frame, | |
836 | int *got_frame_ptr, AVPacket *avpkt) | ||
837 | { | ||
838 | 39 | const uint8_t *buf = avpkt->data; | |
839 | 39 | int buf_size = avpkt->size; | |
840 | 39 | On2AVCContext *c = avctx->priv_data; | |
841 | GetByteContext gb; | ||
842 | 39 | int num_frames = 0, frame_size, audio_off; | |
843 | int ret; | ||
844 | |||
845 |
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39 | if (c->is_av500) { |
846 | /* get output buffer */ | ||
847 | 39 | frame->nb_samples = ON2AVC_SUBFRAME_SIZE; | |
848 |
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39 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |
849 | ✗ | return ret; | |
850 | |||
851 |
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39 | if ((ret = on2avc_decode_subframe(c, buf, buf_size, frame, 0)) < 0) |
852 | ✗ | return ret; | |
853 | } else { | ||
854 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
855 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
856 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
857 | ✗ | if (!frame_size || frame_size > bytestream2_get_bytes_left(&gb)) { | |
858 | ✗ | av_log(avctx, AV_LOG_ERROR, "Invalid subframe size %d\n", | |
859 | frame_size); | ||
860 | ✗ | return AVERROR_INVALIDDATA; | |
861 | } | ||
862 | ✗ | num_frames++; | |
863 | ✗ | bytestream2_skip(&gb, frame_size); | |
864 | } | ||
865 | ✗ | if (!num_frames) { | |
866 | ✗ | av_log(avctx, AV_LOG_ERROR, "No subframes present\n"); | |
867 | ✗ | return AVERROR_INVALIDDATA; | |
868 | } | ||
869 | |||
870 | /* get output buffer */ | ||
871 | ✗ | frame->nb_samples = ON2AVC_SUBFRAME_SIZE * num_frames; | |
872 | ✗ | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) | |
873 | ✗ | return ret; | |
874 | |||
875 | ✗ | audio_off = 0; | |
876 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
877 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
878 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
879 | ✗ | if ((ret = on2avc_decode_subframe(c, gb.buffer, frame_size, | |
880 | frame, audio_off)) < 0) | ||
881 | ✗ | return ret; | |
882 | ✗ | audio_off += ON2AVC_SUBFRAME_SIZE; | |
883 | ✗ | bytestream2_skip(&gb, frame_size); | |
884 | } | ||
885 | } | ||
886 | |||
887 | 39 | *got_frame_ptr = 1; | |
888 | |||
889 | 39 | return buf_size; | |
890 | } | ||
891 | |||
892 | 3 | static av_cold void on2avc_free_vlcs(On2AVCContext *c) | |
893 | { | ||
894 | int i; | ||
895 | |||
896 | 3 | ff_vlc_free(&c->scale_diff); | |
897 |
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48 | for (i = 1; i < 16; i++) |
898 | 45 | ff_vlc_free(&c->cb_vlc[i]); | |
899 | 3 | } | |
900 | |||
901 | 3 | static av_cold int on2avc_decode_init(AVCodecContext *avctx) | |
902 | { | ||
903 | 3 | On2AVCContext *c = avctx->priv_data; | |
904 | 3 | const uint8_t *lens = ff_on2avc_cb_lens; | |
905 | 3 | const uint16_t *syms = ff_on2avc_cb_syms; | |
906 | 3 | int channels = avctx->ch_layout.nb_channels; | |
907 | float scale; | ||
908 | int i, ret; | ||
909 | |||
910 |
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3 | if (channels > 2U) { |
911 | ✗ | avpriv_request_sample(avctx, "Decoding more than 2 channels"); | |
912 | ✗ | return AVERROR_PATCHWELCOME; | |
913 | } | ||
914 | |||
915 | 3 | c->avctx = avctx; | |
916 | 3 | avctx->sample_fmt = AV_SAMPLE_FMT_FLTP; | |
917 | 3 | av_channel_layout_uninit(&avctx->ch_layout); | |
918 |
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3 | avctx->ch_layout = (channels == 2) ? (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO : |
919 | (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | ||
920 | |||
921 | 3 | c->is_av500 = (avctx->codec_tag == 0x500); | |
922 | |||
923 |
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3 | if (channels == 2) |
924 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
925 | "Stereo mode support is not good, patch is welcome\n"); | ||
926 | |||
927 | // We add -0.01 before ceil() to avoid any values to fall at exactly the | ||
928 | // midpoint between different ceil values. The results are identical to | ||
929 | // using pow(10, i / 10.0) without such bias | ||
930 |
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63 | for (i = 0; i < 20; i++) |
931 | 60 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 16 - 0.01) / 32; | |
932 |
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327 | for (; i < 128; i++) |
933 | 324 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 0.5 - 0.01); | |
934 | |||
935 |
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3 | if (avctx->sample_rate < 32000 || channels == 1) |
936 | 3 | memcpy(c->long_win, ff_on2avc_window_long_24000, | |
937 | 1024 * sizeof(*c->long_win)); | ||
938 | else | ||
939 | ✗ | memcpy(c->long_win, ff_on2avc_window_long_32000, | |
940 | 1024 * sizeof(*c->long_win)); | ||
941 | 3 | memcpy(c->short_win, ff_on2avc_window_short, 128 * sizeof(*c->short_win)); | |
942 | |||
943 | 6 | c->modes = (avctx->sample_rate <= 40000) ? ff_on2avc_modes_40 | |
944 |
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3 | : ff_on2avc_modes_44; |
945 |
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3 | c->wtf = (avctx->sample_rate <= 40000) ? wtf_40 |
946 | : wtf_44; | ||
947 | |||
948 | 3 | scale = 1.0 / (1024*32768); | |
949 |
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3 | if ((ret = av_tx_init(&c->mdct, &c->mdct_fn, AV_TX_FLOAT_MDCT, 1, 1024, &scale, 0)) < 0) |
950 | ✗ | return ret; | |
951 | |||
952 | 3 | scale = 1.0 / (512*32768); | |
953 |
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3 | if ((ret = av_tx_init(&c->mdct_half, &c->mdct_half_fn, AV_TX_FLOAT_MDCT, 1, 512, &scale, 0)) < 0) |
954 | ✗ | return ret; | |
955 | |||
956 | 3 | scale = 1.0 / (128*32768); | |
957 |
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3 | if ((ret = av_tx_init(&c->mdct_small, &c->mdct_small_fn, AV_TX_FLOAT_MDCT, 1, 128, &scale, 0)) < 0) |
958 | ✗ | return ret; | |
959 | |||
960 |
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3 | if ((ret = av_tx_init(&c->fft512, &c->fft512_fn, AV_TX_FLOAT_FFT, 1, 512, NULL, 0)) < 0) |
961 | ✗ | return ret; | |
962 |
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3 | if ((ret = av_tx_init(&c->fft256, &c->fft256_fn, AV_TX_FLOAT_FFT, 1, 256, NULL, 0)) < 0) |
963 | ✗ | return ret; | |
964 |
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3 | if ((ret = av_tx_init(&c->fft128, &c->fft128_fn, AV_TX_FLOAT_FFT, 0, 128, NULL, 0)) < 0) |
965 | ✗ | return ret; | |
966 |
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3 | if ((ret = av_tx_init(&c->fft64, &c->fft64_fn, AV_TX_FLOAT_FFT, 0, 64, NULL, 0)) < 0) |
967 | ✗ | return ret; | |
968 | |||
969 | 3 | c->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT); | |
970 |
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3 | if (!c->fdsp) |
971 | ✗ | return AVERROR(ENOMEM); | |
972 | |||
973 | 3 | ret = ff_vlc_init_from_lengths(&c->scale_diff, 9, ON2AVC_SCALE_DIFFS, | |
974 | ff_on2avc_scale_diff_bits, 1, | ||
975 | ff_on2avc_scale_diff_syms, 1, 1, -60, 0, avctx); | ||
976 |
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3 | if (ret < 0) |
977 | ✗ | goto vlc_fail; | |
978 |
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48 | for (i = 1; i < 16; i++) { |
979 | 45 | int idx = i - 1; | |
980 | 45 | ret = ff_vlc_init_from_lengths(&c->cb_vlc[i], 9, ff_on2avc_cb_elems[idx], | |
981 | lens, 1, | ||
982 | syms, 2, 2, 0, 0, avctx); | ||
983 |
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45 | if (ret < 0) |
984 | ✗ | goto vlc_fail; | |
985 | 45 | lens += ff_on2avc_cb_elems[idx]; | |
986 | 45 | syms += ff_on2avc_cb_elems[idx]; | |
987 | } | ||
988 | |||
989 | 3 | return 0; | |
990 | ✗ | vlc_fail: | |
991 | ✗ | av_log(avctx, AV_LOG_ERROR, "Cannot init VLC\n"); | |
992 | ✗ | return ret; | |
993 | } | ||
994 | |||
995 | 3 | static av_cold int on2avc_decode_close(AVCodecContext *avctx) | |
996 | { | ||
997 | 3 | On2AVCContext *c = avctx->priv_data; | |
998 | |||
999 | 3 | av_tx_uninit(&c->mdct); | |
1000 | 3 | av_tx_uninit(&c->mdct_half); | |
1001 | 3 | av_tx_uninit(&c->mdct_small); | |
1002 | 3 | av_tx_uninit(&c->fft64); | |
1003 | 3 | av_tx_uninit(&c->fft128); | |
1004 | 3 | av_tx_uninit(&c->fft256); | |
1005 | 3 | av_tx_uninit(&c->fft512); | |
1006 | |||
1007 | 3 | av_freep(&c->fdsp); | |
1008 | |||
1009 | 3 | on2avc_free_vlcs(c); | |
1010 | |||
1011 | 3 | return 0; | |
1012 | } | ||
1013 | |||
1014 | |||
1015 | const FFCodec ff_on2avc_decoder = { | ||
1016 | .p.name = "on2avc", | ||
1017 | CODEC_LONG_NAME("On2 Audio for Video Codec"), | ||
1018 | .p.type = AVMEDIA_TYPE_AUDIO, | ||
1019 | .p.id = AV_CODEC_ID_ON2AVC, | ||
1020 | .priv_data_size = sizeof(On2AVCContext), | ||
1021 | .init = on2avc_decode_init, | ||
1022 | FF_CODEC_DECODE_CB(on2avc_decode_frame), | ||
1023 | .close = on2avc_decode_close, | ||
1024 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
1025 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1026 | .p.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, | ||
1027 | AV_SAMPLE_FMT_NONE }, | ||
1028 | }; | ||
1029 |