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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 | #include "libavutil/tx.h" | ||
28 | |||
29 | #include "avcodec.h" | ||
30 | #include "bytestream.h" | ||
31 | #include "codec_internal.h" | ||
32 | #include "decode.h" | ||
33 | #include "get_bits.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 | AVTXContext *mdct, *mdct_half, *mdct_small; | ||
54 | AVTXContext *fft64, *fft128, *fft256, *fft512; | ||
55 | av_tx_fn mdct_fn, mdct_half_fn, mdct_small_fn; | ||
56 | av_tx_fn fft64_fn, fft128_fn, fft256_fn, fft512_fn; | ||
57 | void (*wtf)(struct On2AVCContext *ctx, float *out, float *in, int size); | ||
58 | |||
59 | int is_av500; | ||
60 | |||
61 | const On2AVCMode *modes; | ||
62 | int window_type, prev_window_type; | ||
63 | int num_windows, num_bands; | ||
64 | int bits_per_section; | ||
65 | const int *band_start; | ||
66 | |||
67 | int grouping[8]; | ||
68 | int ms_present; | ||
69 | int ms_info[ON2AVC_MAX_BANDS]; | ||
70 | |||
71 | int is_long; | ||
72 | |||
73 | uint8_t band_type[ON2AVC_MAX_BANDS]; | ||
74 | uint8_t band_run_end[ON2AVC_MAX_BANDS]; | ||
75 | int num_sections; | ||
76 | |||
77 | float band_scales[ON2AVC_MAX_BANDS]; | ||
78 | |||
79 | VLC scale_diff; | ||
80 | VLC cb_vlc[16]; | ||
81 | |||
82 | float scale_tab[128]; | ||
83 | |||
84 | DECLARE_ALIGNED(32, float, coeffs)[2][ON2AVC_SUBFRAME_SIZE]; | ||
85 | DECLARE_ALIGNED(32, float, delay) [2][ON2AVC_SUBFRAME_SIZE]; | ||
86 | |||
87 | DECLARE_ALIGNED(32, float, temp) [ON2AVC_SUBFRAME_SIZE * 2]; | ||
88 | DECLARE_ALIGNED(32, float, mdct_buf) [ON2AVC_SUBFRAME_SIZE]; | ||
89 | DECLARE_ALIGNED(32, float, long_win) [ON2AVC_SUBFRAME_SIZE]; | ||
90 | DECLARE_ALIGNED(32, float, short_win)[ON2AVC_SUBFRAME_SIZE / 8]; | ||
91 | } On2AVCContext; | ||
92 | |||
93 | 30 | static void on2avc_read_ms_info(On2AVCContext *c, GetBitContext *gb) | |
94 | { | ||
95 | 30 | int w, b, band_off = 0; | |
96 | |||
97 | 30 | c->ms_present = get_bits1(gb); | |
98 |
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30 | if (!c->ms_present) |
99 | 30 | return; | |
100 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
101 | ✗ | if (!c->grouping[w]) { | |
102 | ✗ | memcpy(c->ms_info + band_off, | |
103 | ✗ | c->ms_info + band_off - c->num_bands, | |
104 | ✗ | c->num_bands * sizeof(*c->ms_info)); | |
105 | ✗ | band_off += c->num_bands; | |
106 | ✗ | continue; | |
107 | } | ||
108 | ✗ | for (b = 0; b < c->num_bands; b++) | |
109 | ✗ | c->ms_info[band_off++] = get_bits1(gb); | |
110 | } | ||
111 | } | ||
112 | |||
113 | // do not see Table 17 in ISO/IEC 13818-7 | ||
114 | 30 | static int on2avc_decode_band_types(On2AVCContext *c, GetBitContext *gb) | |
115 | { | ||
116 |
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30 | int bits_per_sect = c->is_long ? 5 : 3; |
117 | 30 | int esc_val = (1 << bits_per_sect) - 1; | |
118 | 30 | int num_bands = c->num_bands * c->num_windows; | |
119 | 30 | int band = 0, i, band_type, run_len, run; | |
120 | |||
121 |
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255 | while (band < num_bands) { |
122 | 225 | band_type = get_bits(gb, 4); | |
123 | 225 | run_len = 1; | |
124 | do { | ||
125 | 225 | run = get_bits(gb, bits_per_sect); | |
126 |
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225 | if (run > num_bands - band - run_len) { |
127 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid band type run\n"); | |
128 | ✗ | return AVERROR_INVALIDDATA; | |
129 | } | ||
130 | 225 | run_len += run; | |
131 |
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225 | } while (run == esc_val); |
132 |
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1695 | for (i = band; i < band + run_len; i++) { |
133 | 1470 | c->band_type[i] = band_type; | |
134 | 1470 | c->band_run_end[i] = band + run_len; | |
135 | } | ||
136 | 225 | band += run_len; | |
137 | } | ||
138 | |||
139 | 30 | return 0; | |
140 | } | ||
141 | |||
142 | // completely not like Table 18 in ISO/IEC 13818-7 | ||
143 | // (no intensity stereo, different coding for the first coefficient) | ||
144 | 30 | static int on2avc_decode_band_scales(On2AVCContext *c, GetBitContext *gb) | |
145 | { | ||
146 | 30 | int w, w2, b, scale, first = 1; | |
147 | 30 | int band_off = 0; | |
148 | |||
149 |
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60 | for (w = 0; w < c->num_windows; w++) { |
150 |
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30 | if (!c->grouping[w]) { |
151 | ✗ | memcpy(c->band_scales + band_off, | |
152 | ✗ | c->band_scales + band_off - c->num_bands, | |
153 | ✗ | c->num_bands * sizeof(*c->band_scales)); | |
154 | ✗ | band_off += c->num_bands; | |
155 | ✗ | continue; | |
156 | } | ||
157 |
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1500 | for (b = 0; b < c->num_bands; b++) { |
158 |
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1470 | if (!c->band_type[band_off]) { |
159 | 211 | int all_zero = 1; | |
160 |
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211 | for (w2 = w + 1; w2 < c->num_windows; w2++) { |
161 | ✗ | if (c->grouping[w2]) | |
162 | ✗ | break; | |
163 | ✗ | if (c->band_type[w2 * c->num_bands + b]) { | |
164 | ✗ | all_zero = 0; | |
165 | ✗ | break; | |
166 | } | ||
167 | } | ||
168 |
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211 | if (all_zero) { |
169 | 211 | c->band_scales[band_off++] = 0; | |
170 | 211 | continue; | |
171 | } | ||
172 | } | ||
173 |
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1259 | if (first) { |
174 | 30 | scale = get_bits(gb, 7); | |
175 | 30 | first = 0; | |
176 | } else { | ||
177 | 1229 | scale += get_vlc2(gb, c->scale_diff.table, 9, 3); | |
178 | } | ||
179 |
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1259 | if (scale < 0 || scale > 127) { |
180 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\n", | |
181 | scale); | ||
182 | ✗ | return AVERROR_INVALIDDATA; | |
183 | } | ||
184 | 1259 | c->band_scales[band_off++] = c->scale_tab[scale]; | |
185 | } | ||
186 | } | ||
187 | |||
188 | 30 | return 0; | |
189 | } | ||
190 | |||
191 | 20628 | static inline float on2avc_scale(int v, float scale) | |
192 | { | ||
193 | 20628 | return v * sqrtf(abs(v)) * scale; | |
194 | } | ||
195 | |||
196 | // spectral data is coded completely differently - there are no unsigned codebooks | ||
197 | 1249 | static int on2avc_decode_quads(On2AVCContext *c, GetBitContext *gb, float *dst, | |
198 | int dst_size, int type, float band_scale) | ||
199 | { | ||
200 | int i, j, val, val1; | ||
201 | |||
202 |
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6396 | for (i = 0; i < dst_size; i += 4) { |
203 | 5147 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
204 | |||
205 |
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25735 | for (j = 0; j < 4; j++) { |
206 | 20588 | val1 = sign_extend((val >> (12 - j * 4)) & 0xF, 4); | |
207 | 20588 | *dst++ = on2avc_scale(val1, band_scale); | |
208 | } | ||
209 | } | ||
210 | |||
211 | 1249 | return 0; | |
212 | } | ||
213 | |||
214 | 2 | static inline int get_egolomb(GetBitContext *gb) | |
215 | { | ||
216 | 2 | int v = 4; | |
217 | |||
218 |
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3 | while (get_bits1(gb)) { |
219 | 1 | v++; | |
220 |
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1 | if (v > 30) { |
221 | ✗ | av_log(NULL, AV_LOG_WARNING, "Too large golomb code in get_egolomb.\n"); | |
222 | ✗ | v = 30; | |
223 | ✗ | break; | |
224 | } | ||
225 | } | ||
226 | |||
227 | 2 | return (1 << v) + get_bits_long(gb, v); | |
228 | } | ||
229 | |||
230 | 10 | static int on2avc_decode_pairs(On2AVCContext *c, GetBitContext *gb, float *dst, | |
231 | int dst_size, int type, float band_scale) | ||
232 | { | ||
233 | int i, val, val1, val2, sign; | ||
234 | |||
235 |
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30 | for (i = 0; i < dst_size; i += 2) { |
236 | 20 | val = get_vlc2(gb, c->cb_vlc[type].table, 9, 2); | |
237 | |||
238 | 20 | val1 = sign_extend(val >> 8, 8); | |
239 | 20 | val2 = sign_extend(val & 0xFF, 8); | |
240 |
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20 | if (type == ON2AVC_ESC_CB) { |
241 |
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6 | if (val1 <= -16 || val1 >= 16) { |
242 | 1 | sign = 1 - (val1 < 0) * 2; | |
243 | 1 | val1 = sign * get_egolomb(gb); | |
244 | } | ||
245 |
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6 | if (val2 <= -16 || val2 >= 16) { |
246 | 1 | sign = 1 - (val2 < 0) * 2; | |
247 | 1 | val2 = sign * get_egolomb(gb); | |
248 | } | ||
249 | } | ||
250 | |||
251 | 20 | *dst++ = on2avc_scale(val1, band_scale); | |
252 | 20 | *dst++ = on2avc_scale(val2, band_scale); | |
253 | } | ||
254 | |||
255 | 10 | return 0; | |
256 | } | ||
257 | |||
258 | 30 | static int on2avc_read_channel_data(On2AVCContext *c, GetBitContext *gb, int ch) | |
259 | { | ||
260 | int ret; | ||
261 | int w, b, band_idx; | ||
262 | float *coeff_ptr; | ||
263 | |||
264 |
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30 | if ((ret = on2avc_decode_band_types(c, gb)) < 0) |
265 | ✗ | return ret; | |
266 |
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30 | if ((ret = on2avc_decode_band_scales(c, gb)) < 0) |
267 | ✗ | return ret; | |
268 | |||
269 | 30 | coeff_ptr = c->coeffs[ch]; | |
270 | 30 | band_idx = 0; | |
271 | 30 | memset(coeff_ptr, 0, ON2AVC_SUBFRAME_SIZE * sizeof(*coeff_ptr)); | |
272 |
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60 | for (w = 0; w < c->num_windows; w++) { |
273 |
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1500 | for (b = 0; b < c->num_bands; b++) { |
274 | 1470 | int band_size = c->band_start[b + 1] - c->band_start[b]; | |
275 | 1470 | int band_type = c->band_type[band_idx + b]; | |
276 | |||
277 |
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1470 | if (!band_type) { |
278 | 211 | coeff_ptr += band_size; | |
279 | 211 | continue; | |
280 | } | ||
281 |
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1259 | if (band_type < 9) |
282 | 1249 | on2avc_decode_quads(c, gb, coeff_ptr, band_size, band_type, | |
283 | 1249 | c->band_scales[band_idx + b]); | |
284 | else | ||
285 | 10 | on2avc_decode_pairs(c, gb, coeff_ptr, band_size, band_type, | |
286 | 10 | c->band_scales[band_idx + b]); | |
287 | 1259 | coeff_ptr += band_size; | |
288 | } | ||
289 | 30 | band_idx += c->num_bands; | |
290 | } | ||
291 | |||
292 | 30 | return 0; | |
293 | } | ||
294 | |||
295 | ✗ | static int on2avc_apply_ms(On2AVCContext *c) | |
296 | { | ||
297 | int w, b, i; | ||
298 | ✗ | int band_off = 0; | |
299 | ✗ | float *ch0 = c->coeffs[0]; | |
300 | ✗ | float *ch1 = c->coeffs[1]; | |
301 | |||
302 | ✗ | for (w = 0; w < c->num_windows; w++) { | |
303 | ✗ | for (b = 0; b < c->num_bands; b++) { | |
304 | ✗ | if (c->ms_info[band_off + b]) { | |
305 | ✗ | for (i = c->band_start[b]; i < c->band_start[b + 1]; i++) { | |
306 | ✗ | float l = *ch0, r = *ch1; | |
307 | ✗ | *ch0++ = l + r; | |
308 | ✗ | *ch1++ = l - r; | |
309 | } | ||
310 | } else { | ||
311 | ✗ | ch0 += c->band_start[b + 1] - c->band_start[b]; | |
312 | ✗ | ch1 += c->band_start[b + 1] - c->band_start[b]; | |
313 | } | ||
314 | } | ||
315 | ✗ | band_off += c->num_bands; | |
316 | } | ||
317 | ✗ | return 0; | |
318 | } | ||
319 | |||
320 | ✗ | static void zero_head_and_tail(float *src, int len, int order0, int order1) | |
321 | { | ||
322 | ✗ | memset(src, 0, sizeof(*src) * order0); | |
323 | ✗ | memset(src + len - order1, 0, sizeof(*src) * order1); | |
324 | ✗ | } | |
325 | |||
326 | ✗ | static void pretwiddle(float *src, float *dst, int dst_len, int tab_step, | |
327 | int step, int order0, int order1, const double * const *tabs) | ||
328 | { | ||
329 | float *src2, *out; | ||
330 | const double *tab; | ||
331 | int i, j; | ||
332 | |||
333 | ✗ | out = dst; | |
334 | ✗ | tab = tabs[0]; | |
335 | ✗ | for (i = 0; i < tab_step; i++) { | |
336 | ✗ | double sum = 0; | |
337 | ✗ | for (j = 0; j < order0; j++) | |
338 | ✗ | sum += src[j] * tab[j * tab_step + i]; | |
339 | ✗ | out[i] += sum; | |
340 | } | ||
341 | |||
342 | ✗ | out = dst + dst_len - tab_step; | |
343 | ✗ | tab = tabs[order0]; | |
344 | ✗ | src2 = src + (dst_len - tab_step) / step + 1 + order0; | |
345 | ✗ | for (i = 0; i < tab_step; i++) { | |
346 | ✗ | double sum = 0; | |
347 | ✗ | for (j = 0; j < order1; j++) | |
348 | ✗ | sum += src2[j] * tab[j * tab_step + i]; | |
349 | ✗ | out[i] += sum; | |
350 | } | ||
351 | ✗ | } | |
352 | |||
353 | ✗ | static void twiddle(float *src1, float *src2, int src2_len, | |
354 | const double *tab, int tab_len, int step, | ||
355 | int order0, int order1, const double * const *tabs) | ||
356 | { | ||
357 | int steps; | ||
358 | int mask; | ||
359 | int i, j; | ||
360 | |||
361 | ✗ | steps = (src2_len - tab_len) / step + 1; | |
362 | ✗ | pretwiddle(src1, src2, src2_len, tab_len, step, order0, order1, tabs); | |
363 | ✗ | mask = tab_len - 1; | |
364 | |||
365 | ✗ | for (i = 0; i < steps; i++) { | |
366 | ✗ | float in0 = src1[order0 + i]; | |
367 | ✗ | int pos = (src2_len - 1) & mask; | |
368 | |||
369 | ✗ | if (pos < tab_len) { | |
370 | ✗ | const double *t = tab; | |
371 | ✗ | for (j = pos; j >= 0; j--) | |
372 | ✗ | src2[j] += in0 * *t++; | |
373 | ✗ | for (j = 0; j < tab_len - pos - 1; j++) | |
374 | ✗ | src2[src2_len - j - 1] += in0 * tab[pos + 1 + j]; | |
375 | } else { | ||
376 | ✗ | for (j = 0; j < tab_len; j++) | |
377 | ✗ | src2[pos - j] += in0 * tab[j]; | |
378 | } | ||
379 | ✗ | mask = pos + step; | |
380 | } | ||
381 | ✗ | } | |
382 | |||
383 | #define CMUL1_R(s, t, is, it) \ | ||
384 | s[is + 0] * t[it + 0] - s[is + 1] * t[it + 1] | ||
385 | #define CMUL1_I(s, t, is, it) \ | ||
386 | s[is + 0] * t[it + 1] + s[is + 1] * t[it + 0] | ||
387 | #define CMUL2_R(s, t, is, it) \ | ||
388 | s[is + 0] * t[it + 0] + s[is + 1] * t[it + 1] | ||
389 | #define CMUL2_I(s, t, is, it) \ | ||
390 | s[is + 0] * t[it + 1] - s[is + 1] * t[it + 0] | ||
391 | |||
392 | #define CMUL0(dst, id, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
393 | dst[id] = s0[is] * t0[it] + s1[is] * t1[it] \ | ||
394 | + s2[is] * t2[it] + s3[is] * t3[it]; \ | ||
395 | dst[id + 1] = s0[is] * t0[it + 1] + s1[is] * t1[it + 1] \ | ||
396 | + s2[is] * t2[it + 1] + s3[is] * t3[it + 1]; | ||
397 | |||
398 | #define CMUL1(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
399 | *dst++ = CMUL1_R(s0, t0, is, it) \ | ||
400 | + CMUL1_R(s1, t1, is, it) \ | ||
401 | + CMUL1_R(s2, t2, is, it) \ | ||
402 | + CMUL1_R(s3, t3, is, it); \ | ||
403 | *dst++ = CMUL1_I(s0, t0, is, it) \ | ||
404 | + CMUL1_I(s1, t1, is, it) \ | ||
405 | + CMUL1_I(s2, t2, is, it) \ | ||
406 | + CMUL1_I(s3, t3, is, it); | ||
407 | |||
408 | #define CMUL2(dst, s0, s1, s2, s3, t0, t1, t2, t3, is, it) \ | ||
409 | *dst++ = CMUL2_R(s0, t0, is, it) \ | ||
410 | + CMUL2_R(s1, t1, is, it) \ | ||
411 | + CMUL2_R(s2, t2, is, it) \ | ||
412 | + CMUL2_R(s3, t3, is, it); \ | ||
413 | *dst++ = CMUL2_I(s0, t0, is, it) \ | ||
414 | + CMUL2_I(s1, t1, is, it) \ | ||
415 | + CMUL2_I(s2, t2, is, it) \ | ||
416 | + CMUL2_I(s3, t3, is, it); | ||
417 | |||
418 | ✗ | static void combine_fft(float *s0, float *s1, float *s2, float *s3, float *dst, | |
419 | const float *t0, const float *t1, | ||
420 | const float *t2, const float *t3, int len, int step) | ||
421 | { | ||
422 | const float *h0, *h1, *h2, *h3; | ||
423 | float *d1, *d2; | ||
424 | int tmp, half; | ||
425 | ✗ | int len2 = len >> 1, len4 = len >> 2; | |
426 | int hoff; | ||
427 | int i, j, k; | ||
428 | |||
429 | ✗ | tmp = step; | |
430 | ✗ | for (half = len2; tmp > 1; half <<= 1, tmp >>= 1); | |
431 | |||
432 | ✗ | h0 = t0 + half; | |
433 | ✗ | h1 = t1 + half; | |
434 | ✗ | h2 = t2 + half; | |
435 | ✗ | h3 = t3 + half; | |
436 | |||
437 | ✗ | CMUL0(dst, 0, s0, s1, s2, s3, t0, t1, t2, t3, 0, 0); | |
438 | |||
439 | ✗ | hoff = 2 * step * (len4 >> 1); | |
440 | |||
441 | ✗ | j = 2; | |
442 | ✗ | k = 2 * step; | |
443 | ✗ | d1 = dst + 2; | |
444 | ✗ | d2 = dst + 2 + (len >> 1); | |
445 | ✗ | for (i = 0; i < (len4 - 1) >> 1; i++) { | |
446 | ✗ | CMUL1(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
447 | ✗ | CMUL1(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
448 | ✗ | j += 2; | |
449 | ✗ | k += 2 * step; | |
450 | } | ||
451 | ✗ | CMUL0(dst, len4, s0, s1, s2, s3, t0, t1, t2, t3, 1, hoff); | |
452 | ✗ | CMUL0(dst, len4 + len2, s0, s1, s2, s3, h0, h1, h2, h3, 1, hoff); | |
453 | |||
454 | ✗ | j = len4; | |
455 | ✗ | k = hoff + 2 * step * len4; | |
456 | ✗ | d1 = dst + len4 + 2; | |
457 | ✗ | d2 = dst + len4 + 2 + len2; | |
458 | ✗ | for (i = 0; i < (len4 - 2) >> 1; i++) { | |
459 | ✗ | CMUL2(d1, s0, s1, s2, s3, t0, t1, t2, t3, j, k); | |
460 | ✗ | CMUL2(d2, s0, s1, s2, s3, h0, h1, h2, h3, j, k); | |
461 | ✗ | j -= 2; | |
462 | ✗ | k += 2 * step; | |
463 | } | ||
464 | ✗ | CMUL0(dst, len2 + 4, s0, s1, s2, s3, t0, t1, t2, t3, 0, k); | |
465 | ✗ | } | |
466 | |||
467 | ✗ | static void wtf_end_512(On2AVCContext *c, float *out, float *src, | |
468 | float *tmp0, float *tmp1) | ||
469 | { | ||
470 | ✗ | memcpy(tmp1, tmp0, 384 * sizeof(*tmp0)); | |
471 | ✗ | memcpy(tmp0 + 384, tmp1 + 384, 128 * sizeof(*tmp0)); | |
472 | |||
473 | ✗ | zero_head_and_tail(tmp1, 128, 16, 4); | |
474 | ✗ | zero_head_and_tail(tmp1 + 128, 128, 16, 4); | |
475 | ✗ | zero_head_and_tail(tmp1 + 256, 128, 13, 7); | |
476 | ✗ | zero_head_and_tail(tmp1 + 384, 128, 15, 5); | |
477 | |||
478 | ✗ | c->fft64_fn(c->fft64, src + 0, tmp1 + 0, sizeof(float)); | |
479 | ✗ | c->fft64_fn(c->fft64, src + 128, tmp1 + 128, sizeof(float)); | |
480 | ✗ | c->fft64_fn(c->fft64, src + 256, tmp1 + 256, sizeof(float)); | |
481 | ✗ | c->fft64_fn(c->fft64, src + 384, tmp1 + 384, sizeof(float)); | |
482 | |||
483 | ✗ | combine_fft(src, src + 128, src + 256, src + 384, tmp1, | |
484 | ff_on2avc_ctab_1, ff_on2avc_ctab_2, | ||
485 | ff_on2avc_ctab_3, ff_on2avc_ctab_4, 512, 2); | ||
486 | |||
487 | ✗ | c->fft256_fn(c->fft256, src, tmp1, sizeof(float)); | |
488 | |||
489 | ✗ | pretwiddle(&tmp0[ 0], src, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
490 | ✗ | pretwiddle(&tmp0[128], src, 512, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
491 | ✗ | pretwiddle(&tmp0[256], src, 512, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
492 | ✗ | pretwiddle(&tmp0[384], src, 512, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
493 | ✗ | } | |
494 | |||
495 | ✗ | static void wtf_end_1024(On2AVCContext *c, float *out, float *src, | |
496 | float *tmp0, float *tmp1) | ||
497 | { | ||
498 | ✗ | memcpy(tmp1, tmp0, 768 * sizeof(*tmp0)); | |
499 | ✗ | memcpy(tmp0 + 768, tmp1 + 768, 256 * sizeof(*tmp0)); | |
500 | |||
501 | ✗ | zero_head_and_tail(tmp1, 256, 16, 4); | |
502 | ✗ | zero_head_and_tail(tmp1 + 256, 256, 16, 4); | |
503 | ✗ | zero_head_and_tail(tmp1 + 512, 256, 13, 7); | |
504 | ✗ | zero_head_and_tail(tmp1 + 768, 256, 15, 5); | |
505 | |||
506 | ✗ | c->fft128_fn(c->fft128, src + 0, tmp1 + 0, sizeof(float)); | |
507 | ✗ | c->fft128_fn(c->fft128, src + 256, tmp1 + 256, sizeof(float)); | |
508 | ✗ | c->fft128_fn(c->fft128, src + 512, tmp1 + 512, sizeof(float)); | |
509 | ✗ | c->fft128_fn(c->fft128, src + 768, tmp1 + 768, sizeof(float)); | |
510 | |||
511 | ✗ | combine_fft(src, src + 256, src + 512, src + 768, tmp1, | |
512 | ff_on2avc_ctab_1, ff_on2avc_ctab_2, | ||
513 | ff_on2avc_ctab_3, ff_on2avc_ctab_4, 1024, 1); | ||
514 | |||
515 | ✗ | c->fft512_fn(c->fft512, src, tmp1, sizeof(float)); | |
516 | |||
517 | ✗ | pretwiddle(&tmp0[ 0], src, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
518 | ✗ | pretwiddle(&tmp0[256], src, 1024, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
519 | ✗ | pretwiddle(&tmp0[512], src, 1024, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
520 | ✗ | pretwiddle(&tmp0[768], src, 1024, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
521 | ✗ | } | |
522 | |||
523 | ✗ | static void wtf_40(On2AVCContext *c, float *out, float *src, int size) | |
524 | { | ||
525 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
526 | |||
527 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
528 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
529 | |||
530 | ✗ | if (size == 512) { | |
531 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
532 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
533 | ✗ | twiddle(src + 16, &tmp0[ 16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
534 | ✗ | twiddle(src + 24, &tmp0[ 16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
535 | ✗ | twiddle(src + 32, &tmp0[ 32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
536 | ✗ | twiddle(src + 40, &tmp0[ 32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
537 | ✗ | twiddle(src + 48, &tmp0[ 48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
538 | ✗ | twiddle(src + 56, &tmp0[ 48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
539 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
540 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
541 | ✗ | twiddle(&tmp0[32], &tmp1[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
542 | ✗ | twiddle(&tmp0[48], &tmp1[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
543 | ✗ | twiddle(src + 64, &tmp1[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
544 | ✗ | twiddle(src + 80, &tmp1[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
545 | ✗ | twiddle(src + 96, &tmp1[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
546 | ✗ | twiddle(src + 112, &tmp1[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
547 | ✗ | twiddle(src + 128, &tmp1[128], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
548 | ✗ | twiddle(src + 144, &tmp1[128], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
549 | ✗ | twiddle(src + 160, &tmp1[160], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
550 | ✗ | twiddle(src + 176, &tmp1[160], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
551 | |||
552 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
553 | |||
554 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
555 | ✗ | twiddle(&tmp1[ 32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
556 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
557 | ✗ | twiddle(&tmp1[ 96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
558 | ✗ | twiddle(&tmp1[128], &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
559 | ✗ | twiddle(&tmp1[160], &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
560 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
561 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
562 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
563 | ✗ | twiddle(src + 288, &tmp0[256], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
564 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
565 | ✗ | twiddle(src + 352, &tmp0[256], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
566 | |||
567 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
568 | } else { | ||
569 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
570 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
571 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
572 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
573 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
574 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
575 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
576 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
577 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
578 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
579 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
580 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
581 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
582 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
583 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
584 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
585 | ✗ | twiddle(src + 256, &tmp1[256], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
586 | ✗ | twiddle(src + 288, &tmp1[256], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
587 | ✗ | twiddle(src + 320, &tmp1[320], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
588 | ✗ | twiddle(src + 352, &tmp1[320], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
589 | |||
590 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
591 | |||
592 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
593 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
594 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
595 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
596 | ✗ | twiddle(&tmp1[256], &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
597 | ✗ | twiddle(&tmp1[320], &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
598 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
599 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
600 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
601 | ✗ | twiddle(src + 576, &tmp0[512], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
602 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
603 | ✗ | twiddle(src + 704, &tmp0[512], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
604 | |||
605 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
606 | } | ||
607 | ✗ | } | |
608 | |||
609 | ✗ | static void wtf_44(On2AVCContext *c, float *out, float *src, int size) | |
610 | { | ||
611 | ✗ | float *tmp0 = c->temp, *tmp1 = c->temp + 1024; | |
612 | |||
613 | ✗ | memset(tmp0, 0, sizeof(*tmp0) * 1024); | |
614 | ✗ | memset(tmp1, 0, sizeof(*tmp1) * 1024); | |
615 | |||
616 | ✗ | if (size == 512) { | |
617 | ✗ | twiddle(src, &tmp0[ 0], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
618 | ✗ | twiddle(src + 8, &tmp0[ 0], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
619 | ✗ | twiddle(src + 16, &tmp0[16], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
620 | ✗ | twiddle(src + 24, &tmp0[16], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
621 | ✗ | twiddle(src + 32, &tmp0[32], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
622 | ✗ | twiddle(src + 40, &tmp0[32], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
623 | ✗ | twiddle(src + 48, &tmp0[48], 16, ff_on2avc_tab_10_2, 10, 2, 3, 1, ff_on2avc_tabs_4_10_2); | |
624 | ✗ | twiddle(src + 56, &tmp0[48], 16, ff_on2avc_tab_10_1, 10, 2, 1, 3, ff_on2avc_tabs_4_10_1); | |
625 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
626 | ✗ | twiddle(&tmp0[16], &tmp1[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
627 | ✗ | twiddle(&tmp0[32], &tmp1[32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
628 | ✗ | twiddle(&tmp0[48], &tmp1[32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
629 | ✗ | twiddle(src + 64, &tmp1[64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
630 | ✗ | twiddle(src + 80, &tmp1[64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
631 | ✗ | twiddle(src + 96, &tmp1[96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
632 | ✗ | twiddle(src + 112, &tmp1[96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
633 | |||
634 | ✗ | memset(tmp0, 0, 64 * sizeof(*tmp0)); | |
635 | |||
636 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
637 | ✗ | twiddle(&tmp1[32], &tmp0[ 0], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
638 | ✗ | twiddle(&tmp1[64], &tmp0[ 0], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
639 | ✗ | twiddle(&tmp1[96], &tmp0[ 0], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
640 | ✗ | twiddle(src + 128, &tmp0[128], 128, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
641 | ✗ | twiddle(src + 160, &tmp0[128], 128, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
642 | ✗ | twiddle(src + 192, &tmp0[128], 128, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
643 | ✗ | twiddle(src + 224, &tmp0[128], 128, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
644 | ✗ | twiddle(src + 256, &tmp0[256], 128, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
645 | ✗ | twiddle(src + 320, &tmp0[256], 128, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
646 | |||
647 | ✗ | wtf_end_512(c, out, src, tmp0, tmp1); | |
648 | } else { | ||
649 | ✗ | twiddle(src, &tmp0[ 0], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
650 | ✗ | twiddle(src + 16, &tmp0[ 0], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
651 | ✗ | twiddle(src + 32, &tmp0[ 32], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
652 | ✗ | twiddle(src + 48, &tmp0[ 32], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
653 | ✗ | twiddle(src + 64, &tmp0[ 64], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
654 | ✗ | twiddle(src + 80, &tmp0[ 64], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
655 | ✗ | twiddle(src + 96, &tmp0[ 96], 32, ff_on2avc_tab_20_2, 20, 2, 4, 5, ff_on2avc_tabs_9_20_2); | |
656 | ✗ | twiddle(src + 112, &tmp0[ 96], 32, ff_on2avc_tab_20_1, 20, 2, 5, 4, ff_on2avc_tabs_9_20_1); | |
657 | ✗ | twiddle(&tmp0[ 0], &tmp1[ 0], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
658 | ✗ | twiddle(&tmp0[32], &tmp1[ 0], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
659 | ✗ | twiddle(&tmp0[64], &tmp1[ 64], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
660 | ✗ | twiddle(&tmp0[96], &tmp1[ 64], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
661 | ✗ | twiddle(src + 128, &tmp1[128], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
662 | ✗ | twiddle(src + 160, &tmp1[128], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
663 | ✗ | twiddle(src + 192, &tmp1[192], 64, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
664 | ✗ | twiddle(src + 224, &tmp1[192], 64, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
665 | |||
666 | ✗ | memset(tmp0, 0, 128 * sizeof(*tmp0)); | |
667 | |||
668 | ✗ | twiddle(&tmp1[ 0], &tmp0[ 0], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
669 | ✗ | twiddle(&tmp1[ 64], &tmp0[ 0], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
670 | ✗ | twiddle(&tmp1[128], &tmp0[ 0], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
671 | ✗ | twiddle(&tmp1[192], &tmp0[ 0], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
672 | ✗ | twiddle(src + 256, &tmp0[256], 256, ff_on2avc_tab_84_4, 84, 4, 15, 5, ff_on2avc_tabs_20_84_4); | |
673 | ✗ | twiddle(src + 320, &tmp0[256], 256, ff_on2avc_tab_84_3, 84, 4, 13, 7, ff_on2avc_tabs_20_84_3); | |
674 | ✗ | twiddle(src + 384, &tmp0[256], 256, ff_on2avc_tab_84_2, 84, 4, 16, 4, ff_on2avc_tabs_20_84_2); | |
675 | ✗ | twiddle(src + 448, &tmp0[256], 256, ff_on2avc_tab_84_1, 84, 4, 16, 4, ff_on2avc_tabs_20_84_1); | |
676 | ✗ | twiddle(src + 512, &tmp0[512], 256, ff_on2avc_tab_40_1, 40, 2, 11, 8, ff_on2avc_tabs_19_40_1); | |
677 | ✗ | twiddle(src + 640, &tmp0[512], 256, ff_on2avc_tab_40_2, 40, 2, 8, 11, ff_on2avc_tabs_19_40_2); | |
678 | |||
679 | ✗ | wtf_end_1024(c, out, src, tmp0, tmp1); | |
680 | } | ||
681 | ✗ | } | |
682 | |||
683 | ✗ | static int on2avc_reconstruct_channel_ext(On2AVCContext *c, AVFrame *dst, int offset) | |
684 | { | ||
685 | int ch, i; | ||
686 | |||
687 | ✗ | for (ch = 0; ch < c->avctx->ch_layout.nb_channels; ch++) { | |
688 | ✗ | float *out = (float*)dst->extended_data[ch] + offset; | |
689 | ✗ | float *in = c->coeffs[ch]; | |
690 | ✗ | float *saved = c->delay[ch]; | |
691 | ✗ | float *buf = c->mdct_buf; | |
692 | ✗ | float *wout = out + 448; | |
693 | |||
694 | ✗ | switch (c->window_type) { | |
695 | ✗ | case WINDOW_TYPE_EXT7: | |
696 | ✗ | c->mdct_fn(c->mdct, buf, in, sizeof(float)); | |
697 | ✗ | break; | |
698 | ✗ | case WINDOW_TYPE_EXT4: | |
699 | ✗ | c->wtf(c, buf, in, 1024); | |
700 | ✗ | break; | |
701 | ✗ | case WINDOW_TYPE_EXT5: | |
702 | ✗ | c->wtf(c, buf, in, 512); | |
703 | ✗ | c->mdct_half_fn(c->mdct_half, buf + 512, in + 512, sizeof(float)); | |
704 | ✗ | for (i = 0; i < 256; i++) { | |
705 | ✗ | FFSWAP(float, buf[i + 512], buf[1023 - i]); | |
706 | } | ||
707 | ✗ | break; | |
708 | ✗ | case WINDOW_TYPE_EXT6: | |
709 | ✗ | c->mdct_half_fn(c->mdct_half, buf, in, sizeof(float)); | |
710 | ✗ | for (i = 0; i < 256; i++) { | |
711 | ✗ | FFSWAP(float, buf[i], buf[511 - i]); | |
712 | } | ||
713 | ✗ | c->wtf(c, buf + 512, in + 512, 512); | |
714 | ✗ | break; | |
715 | } | ||
716 | |||
717 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
718 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
719 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
720 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
721 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
722 | } | ||
723 | |||
724 | ✗ | return 0; | |
725 | } | ||
726 | |||
727 | // not borrowed from aacdec.c - the codec has original design after all | ||
728 | 30 | static int on2avc_reconstruct_channel(On2AVCContext *c, int channel, | |
729 | AVFrame *dst, int offset) | ||
730 | { | ||
731 | int i; | ||
732 | 30 | float *out = (float*)dst->extended_data[channel] + offset; | |
733 | 30 | float *in = c->coeffs[channel]; | |
734 | 30 | float *saved = c->delay[channel]; | |
735 | 30 | float *buf = c->mdct_buf; | |
736 | 30 | float *temp = c->temp; | |
737 | |||
738 |
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30 | switch (c->window_type) { |
739 | 30 | case WINDOW_TYPE_LONG_START: | |
740 | case WINDOW_TYPE_LONG_STOP: | ||
741 | case WINDOW_TYPE_LONG: | ||
742 | 30 | c->mdct_fn(c->mdct, buf, in, sizeof(float)); | |
743 | 30 | break; | |
744 | ✗ | case WINDOW_TYPE_8SHORT: | |
745 | ✗ | for (i = 0; i < ON2AVC_SUBFRAME_SIZE; i += ON2AVC_SUBFRAME_SIZE / 8) | |
746 | ✗ | c->mdct_small_fn(c->mdct_small, buf + i, in + i, sizeof(float)); | |
747 | ✗ | break; | |
748 | } | ||
749 | |||
750 |
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30 | if ((c->prev_window_type == WINDOW_TYPE_LONG || |
751 | ✗ | c->prev_window_type == WINDOW_TYPE_LONG_STOP) && | |
752 |
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30 | (c->window_type == WINDOW_TYPE_LONG || |
753 | ✗ | c->window_type == WINDOW_TYPE_LONG_START)) { | |
754 | 30 | c->fdsp->vector_fmul_window(out, saved, buf, c->long_win, 512); | |
755 | } else { | ||
756 | ✗ | float *wout = out + 448; | |
757 | ✗ | memcpy(out, saved, 448 * sizeof(float)); | |
758 | |||
759 | ✗ | if (c->window_type == WINDOW_TYPE_8SHORT) { | |
760 | ✗ | c->fdsp->vector_fmul_window(wout + 0*128, saved + 448, buf + 0*128, c->short_win, 64); | |
761 | ✗ | c->fdsp->vector_fmul_window(wout + 1*128, buf + 0*128 + 64, buf + 1*128, c->short_win, 64); | |
762 | ✗ | c->fdsp->vector_fmul_window(wout + 2*128, buf + 1*128 + 64, buf + 2*128, c->short_win, 64); | |
763 | ✗ | c->fdsp->vector_fmul_window(wout + 3*128, buf + 2*128 + 64, buf + 3*128, c->short_win, 64); | |
764 | ✗ | c->fdsp->vector_fmul_window(temp, buf + 3*128 + 64, buf + 4*128, c->short_win, 64); | |
765 | ✗ | memcpy(wout + 4*128, temp, 64 * sizeof(float)); | |
766 | } else { | ||
767 | ✗ | c->fdsp->vector_fmul_window(wout, saved + 448, buf, c->short_win, 64); | |
768 | ✗ | memcpy(wout + 128, buf + 64, 448 * sizeof(float)); | |
769 | } | ||
770 | } | ||
771 | |||
772 | // buffer update | ||
773 |
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30 | switch (c->window_type) { |
774 | ✗ | case WINDOW_TYPE_8SHORT: | |
775 | ✗ | memcpy(saved, temp + 64, 64 * sizeof(float)); | |
776 | ✗ | c->fdsp->vector_fmul_window(saved + 64, buf + 4*128 + 64, buf + 5*128, c->short_win, 64); | |
777 | ✗ | c->fdsp->vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, c->short_win, 64); | |
778 | ✗ | c->fdsp->vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, c->short_win, 64); | |
779 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
780 | ✗ | break; | |
781 | ✗ | case WINDOW_TYPE_LONG_START: | |
782 | ✗ | memcpy(saved, buf + 512, 448 * sizeof(float)); | |
783 | ✗ | memcpy(saved + 448, buf + 7*128 + 64, 64 * sizeof(float)); | |
784 | ✗ | break; | |
785 | 30 | case WINDOW_TYPE_LONG_STOP: | |
786 | case WINDOW_TYPE_LONG: | ||
787 | 30 | memcpy(saved, buf + 512, 512 * sizeof(float)); | |
788 | 30 | break; | |
789 | } | ||
790 | 30 | return 0; | |
791 | } | ||
792 | |||
793 | 30 | static int on2avc_decode_subframe(On2AVCContext *c, const uint8_t *buf, | |
794 | int buf_size, AVFrame *dst, int offset) | ||
795 | { | ||
796 | GetBitContext gb; | ||
797 | int i, ret; | ||
798 | |||
799 |
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30 | if ((ret = init_get_bits8(&gb, buf, buf_size)) < 0) |
800 | ✗ | return ret; | |
801 | |||
802 |
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30 | if (get_bits1(&gb)) { |
803 | ✗ | av_log(c->avctx, AV_LOG_ERROR, "enh bit set\n"); | |
804 | ✗ | return AVERROR_INVALIDDATA; | |
805 | } | ||
806 | 30 | c->prev_window_type = c->window_type; | |
807 | 30 | c->window_type = get_bits(&gb, 3); | |
808 | |||
809 | 30 | c->band_start = c->modes[c->window_type].band_start; | |
810 | 30 | c->num_windows = c->modes[c->window_type].num_windows; | |
811 | 30 | c->num_bands = c->modes[c->window_type].num_bands; | |
812 | 30 | c->is_long = (c->window_type != WINDOW_TYPE_8SHORT); | |
813 | |||
814 | 30 | c->grouping[0] = 1; | |
815 |
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30 | for (i = 1; i < c->num_windows; i++) |
816 | ✗ | c->grouping[i] = !get_bits1(&gb); | |
817 | |||
818 | 30 | on2avc_read_ms_info(c, &gb); | |
819 |
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60 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
820 |
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30 | if ((ret = on2avc_read_channel_data(c, &gb, i)) < 0) |
821 | ✗ | return AVERROR_INVALIDDATA; | |
822 |
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30 | if (c->avctx->ch_layout.nb_channels == 2 && c->ms_present) |
823 | ✗ | on2avc_apply_ms(c); | |
824 |
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30 | if (c->window_type < WINDOW_TYPE_EXT4) { |
825 |
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60 | for (i = 0; i < c->avctx->ch_layout.nb_channels; i++) |
826 | 30 | on2avc_reconstruct_channel(c, i, dst, offset); | |
827 | } else { | ||
828 | ✗ | on2avc_reconstruct_channel_ext(c, dst, offset); | |
829 | } | ||
830 | |||
831 | 30 | return 0; | |
832 | } | ||
833 | |||
834 | 30 | static int on2avc_decode_frame(AVCodecContext * avctx, AVFrame *frame, | |
835 | int *got_frame_ptr, AVPacket *avpkt) | ||
836 | { | ||
837 | 30 | const uint8_t *buf = avpkt->data; | |
838 | 30 | int buf_size = avpkt->size; | |
839 | 30 | On2AVCContext *c = avctx->priv_data; | |
840 | GetByteContext gb; | ||
841 | 30 | int num_frames = 0, frame_size, audio_off; | |
842 | int ret; | ||
843 | |||
844 |
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30 | if (c->is_av500) { |
845 | /* get output buffer */ | ||
846 | 30 | frame->nb_samples = ON2AVC_SUBFRAME_SIZE; | |
847 |
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30 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |
848 | ✗ | return ret; | |
849 | |||
850 |
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30 | if ((ret = on2avc_decode_subframe(c, buf, buf_size, frame, 0)) < 0) |
851 | ✗ | return ret; | |
852 | } else { | ||
853 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
854 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
855 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
856 | ✗ | if (!frame_size || frame_size > bytestream2_get_bytes_left(&gb)) { | |
857 | ✗ | av_log(avctx, AV_LOG_ERROR, "Invalid subframe size %d\n", | |
858 | frame_size); | ||
859 | ✗ | return AVERROR_INVALIDDATA; | |
860 | } | ||
861 | ✗ | num_frames++; | |
862 | ✗ | bytestream2_skip(&gb, frame_size); | |
863 | } | ||
864 | ✗ | if (!num_frames) { | |
865 | ✗ | av_log(avctx, AV_LOG_ERROR, "No subframes present\n"); | |
866 | ✗ | return AVERROR_INVALIDDATA; | |
867 | } | ||
868 | |||
869 | /* get output buffer */ | ||
870 | ✗ | frame->nb_samples = ON2AVC_SUBFRAME_SIZE * num_frames; | |
871 | ✗ | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) | |
872 | ✗ | return ret; | |
873 | |||
874 | ✗ | audio_off = 0; | |
875 | ✗ | bytestream2_init(&gb, buf, buf_size); | |
876 | ✗ | while (bytestream2_get_bytes_left(&gb) > 2) { | |
877 | ✗ | frame_size = bytestream2_get_le16(&gb); | |
878 | ✗ | if ((ret = on2avc_decode_subframe(c, gb.buffer, frame_size, | |
879 | frame, audio_off)) < 0) | ||
880 | ✗ | return ret; | |
881 | ✗ | audio_off += ON2AVC_SUBFRAME_SIZE; | |
882 | ✗ | bytestream2_skip(&gb, frame_size); | |
883 | } | ||
884 | } | ||
885 | |||
886 | 30 | *got_frame_ptr = 1; | |
887 | |||
888 | 30 | return buf_size; | |
889 | } | ||
890 | |||
891 | 3 | static av_cold void on2avc_free_vlcs(On2AVCContext *c) | |
892 | { | ||
893 | int i; | ||
894 | |||
895 | 3 | ff_vlc_free(&c->scale_diff); | |
896 |
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48 | for (i = 1; i < 16; i++) |
897 | 45 | ff_vlc_free(&c->cb_vlc[i]); | |
898 | 3 | } | |
899 | |||
900 | 3 | static av_cold int on2avc_decode_init(AVCodecContext *avctx) | |
901 | { | ||
902 | 3 | On2AVCContext *c = avctx->priv_data; | |
903 | 3 | const uint8_t *lens = ff_on2avc_cb_lens; | |
904 | 3 | const uint16_t *syms = ff_on2avc_cb_syms; | |
905 | 3 | int channels = avctx->ch_layout.nb_channels; | |
906 | float scale; | ||
907 | int i, ret; | ||
908 | |||
909 |
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3 | if (channels > 2U) { |
910 | ✗ | avpriv_request_sample(avctx, "Decoding more than 2 channels"); | |
911 | ✗ | return AVERROR_PATCHWELCOME; | |
912 | } | ||
913 | |||
914 | 3 | c->avctx = avctx; | |
915 | 3 | avctx->sample_fmt = AV_SAMPLE_FMT_FLTP; | |
916 | 3 | av_channel_layout_uninit(&avctx->ch_layout); | |
917 |
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3 | avctx->ch_layout = (channels == 2) ? (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO : |
918 | (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | ||
919 | |||
920 | 3 | c->is_av500 = (avctx->codec_tag == 0x500); | |
921 | |||
922 |
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3 | if (channels == 2) |
923 | ✗ | av_log(avctx, AV_LOG_WARNING, | |
924 | "Stereo mode support is not good, patch is welcome\n"); | ||
925 | |||
926 | // We add -0.01 before ceil() to avoid any values to fall at exactly the | ||
927 | // midpoint between different ceil values. The results are identical to | ||
928 | // using pow(10, i / 10.0) without such bias | ||
929 |
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63 | for (i = 0; i < 20; i++) |
930 | 60 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 16 - 0.01) / 32; | |
931 |
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327 | for (; i < 128; i++) |
932 | 324 | c->scale_tab[i] = ceil(ff_exp10(i * 0.1) * 0.5 - 0.01); | |
933 | |||
934 |
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3 | if (avctx->sample_rate < 32000 || channels == 1) |
935 | 3 | memcpy(c->long_win, ff_on2avc_window_long_24000, | |
936 | 1024 * sizeof(*c->long_win)); | ||
937 | else | ||
938 | ✗ | memcpy(c->long_win, ff_on2avc_window_long_32000, | |
939 | 1024 * sizeof(*c->long_win)); | ||
940 | 3 | memcpy(c->short_win, ff_on2avc_window_short, 128 * sizeof(*c->short_win)); | |
941 | |||
942 | 6 | c->modes = (avctx->sample_rate <= 40000) ? ff_on2avc_modes_40 | |
943 |
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3 | : ff_on2avc_modes_44; |
944 |
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3 | c->wtf = (avctx->sample_rate <= 40000) ? wtf_40 |
945 | : wtf_44; | ||
946 | |||
947 | 3 | scale = 1.0 / (1024*32768); | |
948 |
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3 | if ((ret = av_tx_init(&c->mdct, &c->mdct_fn, AV_TX_FLOAT_MDCT, 1, 1024, &scale, 0)) < 0) |
949 | ✗ | return ret; | |
950 | |||
951 | 3 | scale = 1.0 / (512*32768); | |
952 |
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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) |
953 | ✗ | return ret; | |
954 | |||
955 | 3 | scale = 1.0 / (128*32768); | |
956 |
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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) |
957 | ✗ | return ret; | |
958 | |||
959 |
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3 | if ((ret = av_tx_init(&c->fft512, &c->fft512_fn, AV_TX_FLOAT_FFT, 1, 512, NULL, 0)) < 0) |
960 | ✗ | return ret; | |
961 |
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3 | if ((ret = av_tx_init(&c->fft256, &c->fft256_fn, AV_TX_FLOAT_FFT, 1, 256, NULL, 0)) < 0) |
962 | ✗ | return ret; | |
963 |
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3 | if ((ret = av_tx_init(&c->fft128, &c->fft128_fn, AV_TX_FLOAT_FFT, 0, 128, NULL, 0)) < 0) |
964 | ✗ | return ret; | |
965 |
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3 | if ((ret = av_tx_init(&c->fft64, &c->fft64_fn, AV_TX_FLOAT_FFT, 0, 64, NULL, 0)) < 0) |
966 | ✗ | return ret; | |
967 | |||
968 | 3 | c->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT); | |
969 |
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3 | if (!c->fdsp) |
970 | ✗ | return AVERROR(ENOMEM); | |
971 | |||
972 | 3 | ret = ff_vlc_init_from_lengths(&c->scale_diff, 9, ON2AVC_SCALE_DIFFS, | |
973 | ff_on2avc_scale_diff_bits, 1, | ||
974 | ff_on2avc_scale_diff_syms, 1, 1, -60, 0, avctx); | ||
975 |
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3 | if (ret < 0) |
976 | ✗ | goto vlc_fail; | |
977 |
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48 | for (i = 1; i < 16; i++) { |
978 | 45 | int idx = i - 1; | |
979 | 45 | ret = ff_vlc_init_from_lengths(&c->cb_vlc[i], 9, ff_on2avc_cb_elems[idx], | |
980 | lens, 1, | ||
981 | syms, 2, 2, 0, 0, avctx); | ||
982 |
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45 | if (ret < 0) |
983 | ✗ | goto vlc_fail; | |
984 | 45 | lens += ff_on2avc_cb_elems[idx]; | |
985 | 45 | syms += ff_on2avc_cb_elems[idx]; | |
986 | } | ||
987 | |||
988 | 3 | return 0; | |
989 | ✗ | vlc_fail: | |
990 | ✗ | av_log(avctx, AV_LOG_ERROR, "Cannot init VLC\n"); | |
991 | ✗ | return ret; | |
992 | } | ||
993 | |||
994 | 3 | static av_cold int on2avc_decode_close(AVCodecContext *avctx) | |
995 | { | ||
996 | 3 | On2AVCContext *c = avctx->priv_data; | |
997 | |||
998 | 3 | av_tx_uninit(&c->mdct); | |
999 | 3 | av_tx_uninit(&c->mdct_half); | |
1000 | 3 | av_tx_uninit(&c->mdct_small); | |
1001 | 3 | av_tx_uninit(&c->fft64); | |
1002 | 3 | av_tx_uninit(&c->fft128); | |
1003 | 3 | av_tx_uninit(&c->fft256); | |
1004 | 3 | av_tx_uninit(&c->fft512); | |
1005 | |||
1006 | 3 | av_freep(&c->fdsp); | |
1007 | |||
1008 | 3 | on2avc_free_vlcs(c); | |
1009 | |||
1010 | 3 | return 0; | |
1011 | } | ||
1012 | |||
1013 | |||
1014 | const FFCodec ff_on2avc_decoder = { | ||
1015 | .p.name = "on2avc", | ||
1016 | CODEC_LONG_NAME("On2 Audio for Video Codec"), | ||
1017 | .p.type = AVMEDIA_TYPE_AUDIO, | ||
1018 | .p.id = AV_CODEC_ID_ON2AVC, | ||
1019 | .priv_data_size = sizeof(On2AVCContext), | ||
1020 | .init = on2avc_decode_init, | ||
1021 | FF_CODEC_DECODE_CB(on2avc_decode_frame), | ||
1022 | .close = on2avc_decode_close, | ||
1023 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
1024 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1025 | .p.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, | ||
1026 | AV_SAMPLE_FMT_NONE }, | ||
1027 | }; | ||
1028 |