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1 | /* |
2 | * FFV1 encoder | |
3 | * | |
4 | * Copyright (c) 2003-2013 Michael Niedermayer <michaelni@gmx.at> | |
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 | /** | |
24 | * @file | |
25 | * FF Video Codec 1 (a lossless codec) encoder | |
26 | */ | |
27 | ||
28 | #include "libavutil/attributes.h" | |
29 | #include "libavutil/avassert.h" | |
30 | #include "libavutil/crc.h" | |
31 | #include "libavutil/opt.h" | |
32 | #include "libavutil/imgutils.h" | |
33 | #include "libavutil/pixdesc.h" | |
34 | #include "libavutil/timer.h" | |
35 | #include "avcodec.h" | |
36 | #include "internal.h" | |
37 | #include "put_bits.h" | |
38 | #include "rangecoder.h" | |
39 | #include "golomb.h" | |
40 | #include "mathops.h" | |
41 | #include "ffv1.h" | |
42 | ||
43 | static const int8_t quant5_10bit[256] = { | |
44 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, | |
45 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
46 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
47 | 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
48 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
49 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
50 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
51 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
52 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
53 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
54 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
55 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
56 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, | |
57 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
58 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
59 | -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0, | |
60 | }; | |
61 | ||
62 | static const int8_t quant5[256] = { | |
63 | 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
64 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
65 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
66 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
67 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
68 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
69 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
70 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
71 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
72 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
73 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
74 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
75 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
76 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
77 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
78 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1, | |
79 | }; | |
80 | ||
81 | static const int8_t quant9_10bit[256] = { | |
82 | 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, | |
83 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, | |
84 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
85 | 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, | |
86 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
87 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
88 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
89 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
90 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, | |
91 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, | |
92 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, | |
93 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, | |
94 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, | |
95 | -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, | |
96 | -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
97 | -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, | |
98 | }; | |
99 | ||
100 | static const int8_t quant11[256] = { | |
101 | 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, | |
102 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
103 | 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
104 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
105 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
106 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
107 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
108 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
109 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, | |
110 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, | |
111 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, | |
112 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, | |
113 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, | |
114 | -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4, | |
115 | -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, | |
116 | -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1, | |
117 | }; | |
118 | ||
119 | static const uint8_t ver2_state[256] = { | |
120 | 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49, | |
121 | 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39, | |
122 | 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52, | |
123 | 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69, | |
124 | 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97, | |
125 | 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98, | |
126 | 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125, | |
127 | 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129, | |
128 | 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148, | |
129 | 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160, | |
130 | 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178, | |
131 | 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196, | |
132 | 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214, | |
133 | 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225, | |
134 | 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242, | |
135 | 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255, | |
136 | }; | |
137 | ||
138 | static void find_best_state(uint8_t best_state[256][256], | |
139 | const uint8_t one_state[256]) | |
140 | { | |
141 | int i, j, k, m; | |
142 | double l2tab[256]; | |
143 | ||
144 | for (i = 1; i < 256; i++) | |
145 | l2tab[i] = log2(i / 256.0); | |
146 | ||
147 | for (i = 0; i < 256; i++) { | |
148 | double best_len[256]; | |
149 | double p = i / 256.0; | |
150 | ||
151 | for (j = 0; j < 256; j++) | |
152 | best_len[j] = 1 << 30; | |
153 | ||
154 | for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) { | |
155 | double occ[256] = { 0 }; | |
156 | double len = 0; | |
157 | occ[j] = 1.0; | |
158 | for (k = 0; k < 256; k++) { | |
159 | double newocc[256] = { 0 }; | |
160 | for (m = 1; m < 256; m++) | |
161 | if (occ[m]) { | |
162 | len -=occ[m]*( p *l2tab[ m] | |
163 | + (1-p)*l2tab[256-m]); | |
164 | } | |
165 | if (len < best_len[k]) { | |
166 | best_len[k] = len; | |
167 | best_state[i][k] = j; | |
168 | } | |
f6fa7814 | 169 | for (m = 1; m < 256; m++) |
2ba45a60 DM |
170 | if (occ[m]) { |
171 | newocc[ one_state[ m]] += occ[m] * p; | |
172 | newocc[256 - one_state[256 - m]] += occ[m] * (1 - p); | |
173 | } | |
174 | memcpy(occ, newocc, sizeof(occ)); | |
175 | } | |
176 | } | |
177 | } | |
178 | } | |
179 | ||
180 | static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, | |
181 | uint8_t *state, int v, | |
182 | int is_signed, | |
183 | uint64_t rc_stat[256][2], | |
184 | uint64_t rc_stat2[32][2]) | |
185 | { | |
186 | int i; | |
187 | ||
188 | #define put_rac(C, S, B) \ | |
189 | do { \ | |
190 | if (rc_stat) { \ | |
191 | rc_stat[*(S)][B]++; \ | |
192 | rc_stat2[(S) - state][B]++; \ | |
193 | } \ | |
194 | put_rac(C, S, B); \ | |
195 | } while (0) | |
196 | ||
197 | if (v) { | |
198 | const int a = FFABS(v); | |
199 | const int e = av_log2(a); | |
200 | put_rac(c, state + 0, 0); | |
201 | if (e <= 9) { | |
202 | for (i = 0; i < e; i++) | |
203 | put_rac(c, state + 1 + i, 1); // 1..10 | |
204 | put_rac(c, state + 1 + i, 0); | |
205 | ||
206 | for (i = e - 1; i >= 0; i--) | |
207 | put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31 | |
208 | ||
209 | if (is_signed) | |
210 | put_rac(c, state + 11 + e, v < 0); // 11..21 | |
211 | } else { | |
212 | for (i = 0; i < e; i++) | |
213 | put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10 | |
214 | put_rac(c, state + 1 + 9, 0); | |
215 | ||
216 | for (i = e - 1; i >= 0; i--) | |
217 | put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31 | |
218 | ||
219 | if (is_signed) | |
220 | put_rac(c, state + 11 + 10, v < 0); // 11..21 | |
221 | } | |
222 | } else { | |
223 | put_rac(c, state + 0, 1); | |
224 | } | |
225 | #undef put_rac | |
226 | } | |
227 | ||
228 | static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, | |
229 | int v, int is_signed) | |
230 | { | |
231 | put_symbol_inline(c, state, v, is_signed, NULL, NULL); | |
232 | } | |
233 | ||
234 | ||
235 | static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state, | |
236 | int v, int bits) | |
237 | { | |
238 | int i, k, code; | |
239 | v = fold(v - state->bias, bits); | |
240 | ||
241 | i = state->count; | |
242 | k = 0; | |
243 | while (i < state->error_sum) { // FIXME: optimize | |
244 | k++; | |
245 | i += i; | |
246 | } | |
247 | ||
248 | av_assert2(k <= 13); | |
249 | ||
250 | #if 0 // JPEG LS | |
251 | if (k == 0 && 2 * state->drift <= -state->count) | |
252 | code = v ^ (-1); | |
253 | else | |
254 | code = v; | |
255 | #else | |
256 | code = v ^ ((2 * state->drift + state->count) >> 31); | |
257 | #endif | |
258 | ||
259 | av_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code, | |
260 | state->bias, state->error_sum, state->drift, state->count, k); | |
261 | set_sr_golomb(pb, code, k, 12, bits); | |
262 | ||
263 | update_vlc_state(state, v); | |
264 | } | |
265 | ||
266 | static av_always_inline int encode_line(FFV1Context *s, int w, | |
267 | int16_t *sample[3], | |
268 | int plane_index, int bits) | |
269 | { | |
270 | PlaneContext *const p = &s->plane[plane_index]; | |
271 | RangeCoder *const c = &s->c; | |
272 | int x; | |
273 | int run_index = s->run_index; | |
274 | int run_count = 0; | |
275 | int run_mode = 0; | |
276 | ||
277 | if (s->ac) { | |
278 | if (c->bytestream_end - c->bytestream < w * 35) { | |
279 | av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); | |
280 | return AVERROR_INVALIDDATA; | |
281 | } | |
282 | } else { | |
283 | if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) { | |
284 | av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); | |
285 | return AVERROR_INVALIDDATA; | |
286 | } | |
287 | } | |
288 | ||
289 | if (s->slice_coding_mode == 1) { | |
290 | for (x = 0; x < w; x++) { | |
291 | int i; | |
292 | int v = sample[0][x]; | |
293 | for (i = bits-1; i>=0; i--) { | |
294 | uint8_t state = 128; | |
295 | put_rac(c, &state, (v>>i) & 1); | |
296 | } | |
297 | } | |
298 | return 0; | |
299 | } | |
300 | ||
301 | for (x = 0; x < w; x++) { | |
302 | int diff, context; | |
303 | ||
304 | context = get_context(p, sample[0] + x, sample[1] + x, sample[2] + x); | |
305 | diff = sample[0][x] - predict(sample[0] + x, sample[1] + x); | |
306 | ||
307 | if (context < 0) { | |
308 | context = -context; | |
309 | diff = -diff; | |
310 | } | |
311 | ||
312 | diff = fold(diff, bits); | |
313 | ||
314 | if (s->ac) { | |
315 | if (s->flags & CODEC_FLAG_PASS1) { | |
316 | put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat, | |
317 | s->rc_stat2[p->quant_table_index][context]); | |
318 | } else { | |
319 | put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL); | |
320 | } | |
321 | } else { | |
322 | if (context == 0) | |
323 | run_mode = 1; | |
324 | ||
325 | if (run_mode) { | |
326 | if (diff) { | |
327 | while (run_count >= 1 << ff_log2_run[run_index]) { | |
328 | run_count -= 1 << ff_log2_run[run_index]; | |
329 | run_index++; | |
330 | put_bits(&s->pb, 1, 1); | |
331 | } | |
332 | ||
333 | put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count); | |
334 | if (run_index) | |
335 | run_index--; | |
336 | run_count = 0; | |
337 | run_mode = 0; | |
338 | if (diff > 0) | |
339 | diff--; | |
340 | } else { | |
341 | run_count++; | |
342 | } | |
343 | } | |
344 | ||
345 | av_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n", | |
346 | run_count, run_index, run_mode, x, | |
347 | (int)put_bits_count(&s->pb)); | |
348 | ||
349 | if (run_mode == 0) | |
350 | put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits); | |
351 | } | |
352 | } | |
353 | if (run_mode) { | |
354 | while (run_count >= 1 << ff_log2_run[run_index]) { | |
355 | run_count -= 1 << ff_log2_run[run_index]; | |
356 | run_index++; | |
357 | put_bits(&s->pb, 1, 1); | |
358 | } | |
359 | ||
360 | if (run_count) | |
361 | put_bits(&s->pb, 1, 1); | |
362 | } | |
363 | s->run_index = run_index; | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h, | |
369 | int stride, int plane_index) | |
370 | { | |
371 | int x, y, i, ret; | |
372 | const int ring_size = s->avctx->context_model ? 3 : 2; | |
373 | int16_t *sample[3]; | |
374 | s->run_index = 0; | |
375 | ||
376 | memset(s->sample_buffer, 0, ring_size * (w + 6) * sizeof(*s->sample_buffer)); | |
377 | ||
378 | for (y = 0; y < h; y++) { | |
379 | for (i = 0; i < ring_size; i++) | |
380 | sample[i] = s->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3; | |
381 | ||
382 | sample[0][-1]= sample[1][0 ]; | |
383 | sample[1][ w]= sample[1][w-1]; | |
384 | // { START_TIMER | |
385 | if (s->bits_per_raw_sample <= 8) { | |
386 | for (x = 0; x < w; x++) | |
387 | sample[0][x] = src[x + stride * y]; | |
388 | if((ret = encode_line(s, w, sample, plane_index, 8)) < 0) | |
389 | return ret; | |
390 | } else { | |
391 | if (s->packed_at_lsb) { | |
392 | for (x = 0; x < w; x++) { | |
393 | sample[0][x] = ((uint16_t*)(src + stride*y))[x]; | |
394 | } | |
395 | } else { | |
396 | for (x = 0; x < w; x++) { | |
397 | sample[0][x] = ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample); | |
398 | } | |
399 | } | |
400 | if((ret = encode_line(s, w, sample, plane_index, s->bits_per_raw_sample)) < 0) | |
401 | return ret; | |
402 | } | |
403 | // STOP_TIMER("encode line") } | |
404 | } | |
405 | return 0; | |
406 | } | |
407 | ||
408 | static int encode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, const int stride[3]) | |
409 | { | |
410 | int x, y, p, i; | |
411 | const int ring_size = s->avctx->context_model ? 3 : 2; | |
412 | int16_t *sample[4][3]; | |
413 | int lbd = s->bits_per_raw_sample <= 8; | |
414 | int bits = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8; | |
415 | int offset = 1 << bits; | |
416 | ||
417 | s->run_index = 0; | |
418 | ||
419 | memset(s->sample_buffer, 0, ring_size * MAX_PLANES * | |
420 | (w + 6) * sizeof(*s->sample_buffer)); | |
421 | ||
422 | for (y = 0; y < h; y++) { | |
423 | for (i = 0; i < ring_size; i++) | |
424 | for (p = 0; p < MAX_PLANES; p++) | |
425 | sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3; | |
426 | ||
427 | for (x = 0; x < w; x++) { | |
428 | int b, g, r, av_uninit(a); | |
429 | if (lbd) { | |
430 | unsigned v = *((uint32_t*)(src[0] + x*4 + stride[0]*y)); | |
431 | b = v & 0xFF; | |
432 | g = (v >> 8) & 0xFF; | |
433 | r = (v >> 16) & 0xFF; | |
434 | a = v >> 24; | |
435 | } else { | |
436 | b = *((uint16_t*)(src[0] + x*2 + stride[0]*y)); | |
437 | g = *((uint16_t*)(src[1] + x*2 + stride[1]*y)); | |
438 | r = *((uint16_t*)(src[2] + x*2 + stride[2]*y)); | |
439 | } | |
440 | ||
441 | if (s->slice_coding_mode != 1) { | |
442 | b -= g; | |
443 | r -= g; | |
444 | g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2; | |
445 | b += offset; | |
446 | r += offset; | |
447 | } | |
448 | ||
449 | sample[0][0][x] = g; | |
450 | sample[1][0][x] = b; | |
451 | sample[2][0][x] = r; | |
452 | sample[3][0][x] = a; | |
453 | } | |
454 | for (p = 0; p < 3 + s->transparency; p++) { | |
455 | int ret; | |
456 | sample[p][0][-1] = sample[p][1][0 ]; | |
457 | sample[p][1][ w] = sample[p][1][w-1]; | |
458 | if (lbd && s->slice_coding_mode == 0) | |
459 | ret = encode_line(s, w, sample[p], (p + 1) / 2, 9); | |
460 | else | |
461 | ret = encode_line(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1)); | |
462 | if (ret < 0) | |
463 | return ret; | |
464 | } | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static void write_quant_table(RangeCoder *c, int16_t *quant_table) | |
470 | { | |
471 | int last = 0; | |
472 | int i; | |
473 | uint8_t state[CONTEXT_SIZE]; | |
474 | memset(state, 128, sizeof(state)); | |
475 | ||
476 | for (i = 1; i < 128; i++) | |
477 | if (quant_table[i] != quant_table[i - 1]) { | |
478 | put_symbol(c, state, i - last - 1, 0); | |
479 | last = i; | |
480 | } | |
481 | put_symbol(c, state, i - last - 1, 0); | |
482 | } | |
483 | ||
484 | static void write_quant_tables(RangeCoder *c, | |
485 | int16_t quant_table[MAX_CONTEXT_INPUTS][256]) | |
486 | { | |
487 | int i; | |
488 | for (i = 0; i < 5; i++) | |
489 | write_quant_table(c, quant_table[i]); | |
490 | } | |
491 | ||
492 | static void write_header(FFV1Context *f) | |
493 | { | |
494 | uint8_t state[CONTEXT_SIZE]; | |
495 | int i, j; | |
496 | RangeCoder *const c = &f->slice_context[0]->c; | |
497 | ||
498 | memset(state, 128, sizeof(state)); | |
499 | ||
500 | if (f->version < 2) { | |
501 | put_symbol(c, state, f->version, 0); | |
502 | put_symbol(c, state, f->ac, 0); | |
503 | if (f->ac > 1) { | |
504 | for (i = 1; i < 256; i++) | |
505 | put_symbol(c, state, | |
506 | f->state_transition[i] - c->one_state[i], 1); | |
507 | } | |
508 | put_symbol(c, state, f->colorspace, 0); //YUV cs type | |
509 | if (f->version > 0) | |
510 | put_symbol(c, state, f->bits_per_raw_sample, 0); | |
511 | put_rac(c, state, f->chroma_planes); | |
512 | put_symbol(c, state, f->chroma_h_shift, 0); | |
513 | put_symbol(c, state, f->chroma_v_shift, 0); | |
514 | put_rac(c, state, f->transparency); | |
515 | ||
516 | write_quant_tables(c, f->quant_table); | |
517 | } else if (f->version < 3) { | |
518 | put_symbol(c, state, f->slice_count, 0); | |
519 | for (i = 0; i < f->slice_count; i++) { | |
520 | FFV1Context *fs = f->slice_context[i]; | |
521 | put_symbol(c, state, | |
522 | (fs->slice_x + 1) * f->num_h_slices / f->width, 0); | |
523 | put_symbol(c, state, | |
524 | (fs->slice_y + 1) * f->num_v_slices / f->height, 0); | |
525 | put_symbol(c, state, | |
526 | (fs->slice_width + 1) * f->num_h_slices / f->width - 1, | |
527 | 0); | |
528 | put_symbol(c, state, | |
529 | (fs->slice_height + 1) * f->num_v_slices / f->height - 1, | |
530 | 0); | |
531 | for (j = 0; j < f->plane_count; j++) { | |
532 | put_symbol(c, state, f->plane[j].quant_table_index, 0); | |
533 | av_assert0(f->plane[j].quant_table_index == f->avctx->context_model); | |
534 | } | |
535 | } | |
536 | } | |
537 | } | |
538 | ||
539 | static int write_extradata(FFV1Context *f) | |
540 | { | |
541 | RangeCoder *const c = &f->c; | |
542 | uint8_t state[CONTEXT_SIZE]; | |
543 | int i, j, k; | |
544 | uint8_t state2[32][CONTEXT_SIZE]; | |
545 | unsigned v; | |
546 | ||
547 | memset(state2, 128, sizeof(state2)); | |
548 | memset(state, 128, sizeof(state)); | |
549 | ||
550 | f->avctx->extradata_size = 10000 + 4 + | |
551 | (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32; | |
552 | f->avctx->extradata = av_malloc(f->avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); | |
553 | if (!f->avctx->extradata) | |
554 | return AVERROR(ENOMEM); | |
555 | ff_init_range_encoder(c, f->avctx->extradata, f->avctx->extradata_size); | |
556 | ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); | |
557 | ||
558 | put_symbol(c, state, f->version, 0); | |
559 | if (f->version > 2) { | |
560 | if (f->version == 3) { | |
561 | f->micro_version = 4; | |
562 | } else if (f->version == 4) | |
563 | f->micro_version = 2; | |
564 | put_symbol(c, state, f->micro_version, 0); | |
565 | } | |
566 | ||
567 | put_symbol(c, state, f->ac, 0); | |
568 | if (f->ac > 1) | |
569 | for (i = 1; i < 256; i++) | |
570 | put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1); | |
571 | ||
572 | put_symbol(c, state, f->colorspace, 0); // YUV cs type | |
573 | put_symbol(c, state, f->bits_per_raw_sample, 0); | |
574 | put_rac(c, state, f->chroma_planes); | |
575 | put_symbol(c, state, f->chroma_h_shift, 0); | |
576 | put_symbol(c, state, f->chroma_v_shift, 0); | |
577 | put_rac(c, state, f->transparency); | |
578 | put_symbol(c, state, f->num_h_slices - 1, 0); | |
579 | put_symbol(c, state, f->num_v_slices - 1, 0); | |
580 | ||
581 | put_symbol(c, state, f->quant_table_count, 0); | |
582 | for (i = 0; i < f->quant_table_count; i++) | |
583 | write_quant_tables(c, f->quant_tables[i]); | |
584 | ||
585 | for (i = 0; i < f->quant_table_count; i++) { | |
586 | for (j = 0; j < f->context_count[i] * CONTEXT_SIZE; j++) | |
587 | if (f->initial_states[i] && f->initial_states[i][0][j] != 128) | |
588 | break; | |
589 | if (j < f->context_count[i] * CONTEXT_SIZE) { | |
590 | put_rac(c, state, 1); | |
591 | for (j = 0; j < f->context_count[i]; j++) | |
592 | for (k = 0; k < CONTEXT_SIZE; k++) { | |
593 | int pred = j ? f->initial_states[i][j - 1][k] : 128; | |
594 | put_symbol(c, state2[k], | |
595 | (int8_t)(f->initial_states[i][j][k] - pred), 1); | |
596 | } | |
597 | } else { | |
598 | put_rac(c, state, 0); | |
599 | } | |
600 | } | |
601 | ||
602 | if (f->version > 2) { | |
603 | put_symbol(c, state, f->ec, 0); | |
604 | put_symbol(c, state, f->intra = (f->avctx->gop_size < 2), 0); | |
605 | } | |
606 | ||
607 | f->avctx->extradata_size = ff_rac_terminate(c); | |
608 | v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size); | |
609 | AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v); | |
610 | f->avctx->extradata_size += 4; | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static int sort_stt(FFV1Context *s, uint8_t stt[256]) | |
616 | { | |
617 | int i, i2, changed, print = 0; | |
618 | ||
619 | do { | |
620 | changed = 0; | |
621 | for (i = 12; i < 244; i++) { | |
622 | for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) { | |
623 | ||
624 | #define COST(old, new) \ | |
625 | s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \ | |
626 | s->rc_stat[old][1] * -log2((new) / 256.0) | |
627 | ||
628 | #define COST2(old, new) \ | |
629 | COST(old, new) + COST(256 - (old), 256 - (new)) | |
630 | ||
631 | double size0 = COST2(i, i) + COST2(i2, i2); | |
632 | double sizeX = COST2(i, i2) + COST2(i2, i); | |
633 | if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) { | |
634 | int j; | |
635 | FFSWAP(int, stt[i], stt[i2]); | |
636 | FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]); | |
637 | FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]); | |
638 | if (i != 256 - i2) { | |
639 | FFSWAP(int, stt[256 - i], stt[256 - i2]); | |
640 | FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]); | |
641 | FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]); | |
642 | } | |
643 | for (j = 1; j < 256; j++) { | |
644 | if (stt[j] == i) | |
645 | stt[j] = i2; | |
646 | else if (stt[j] == i2) | |
647 | stt[j] = i; | |
648 | if (i != 256 - i2) { | |
649 | if (stt[256 - j] == 256 - i) | |
650 | stt[256 - j] = 256 - i2; | |
651 | else if (stt[256 - j] == 256 - i2) | |
652 | stt[256 - j] = 256 - i; | |
653 | } | |
654 | } | |
655 | print = changed = 1; | |
656 | } | |
657 | } | |
658 | } | |
659 | } while (changed); | |
660 | return print; | |
661 | } | |
662 | ||
663 | static av_cold int encode_init(AVCodecContext *avctx) | |
664 | { | |
665 | FFV1Context *s = avctx->priv_data; | |
666 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); | |
667 | int i, j, k, m, ret; | |
668 | ||
669 | if ((ret = ffv1_common_init(avctx)) < 0) | |
670 | return ret; | |
671 | ||
672 | s->version = 0; | |
673 | ||
674 | if ((avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) || avctx->slices>1) | |
675 | s->version = FFMAX(s->version, 2); | |
676 | ||
677 | // Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability | |
678 | if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576) | |
679 | s->version = FFMAX(s->version, 2); | |
680 | ||
681 | if (avctx->level <= 0 && s->version == 2) { | |
682 | s->version = 3; | |
683 | } | |
684 | if (avctx->level >= 0 && avctx->level <= 4) | |
685 | s->version = FFMAX(s->version, avctx->level); | |
686 | ||
687 | if (s->ec < 0) { | |
688 | s->ec = (s->version >= 3); | |
689 | } | |
690 | ||
691 | if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { | |
692 | av_log(avctx, AV_LOG_ERROR, "Version 2 needed for requested features but version 2 is experimental and not enabled\n"); | |
693 | return AVERROR_INVALIDDATA; | |
694 | } | |
695 | ||
696 | s->ac = avctx->coder_type > 0 ? 2 : 0; | |
697 | ||
698 | s->plane_count = 3; | |
699 | switch(avctx->pix_fmt) { | |
700 | case AV_PIX_FMT_YUV444P9: | |
701 | case AV_PIX_FMT_YUV422P9: | |
702 | case AV_PIX_FMT_YUV420P9: | |
703 | case AV_PIX_FMT_YUVA444P9: | |
704 | case AV_PIX_FMT_YUVA422P9: | |
705 | case AV_PIX_FMT_YUVA420P9: | |
706 | if (!avctx->bits_per_raw_sample) | |
707 | s->bits_per_raw_sample = 9; | |
708 | case AV_PIX_FMT_YUV444P10: | |
709 | case AV_PIX_FMT_YUV420P10: | |
710 | case AV_PIX_FMT_YUV422P10: | |
711 | case AV_PIX_FMT_YUVA444P10: | |
712 | case AV_PIX_FMT_YUVA422P10: | |
713 | case AV_PIX_FMT_YUVA420P10: | |
714 | s->packed_at_lsb = 1; | |
715 | if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) | |
716 | s->bits_per_raw_sample = 10; | |
717 | case AV_PIX_FMT_GRAY16: | |
718 | case AV_PIX_FMT_YUV444P16: | |
719 | case AV_PIX_FMT_YUV422P16: | |
720 | case AV_PIX_FMT_YUV420P16: | |
721 | case AV_PIX_FMT_YUVA444P16: | |
722 | case AV_PIX_FMT_YUVA422P16: | |
723 | case AV_PIX_FMT_YUVA420P16: | |
724 | if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) { | |
725 | s->bits_per_raw_sample = 16; | |
726 | } else if (!s->bits_per_raw_sample) { | |
727 | s->bits_per_raw_sample = avctx->bits_per_raw_sample; | |
728 | } | |
729 | if (s->bits_per_raw_sample <= 8) { | |
730 | av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n"); | |
731 | return AVERROR_INVALIDDATA; | |
732 | } | |
733 | if (!s->ac && avctx->coder_type == -1) { | |
734 | av_log(avctx, AV_LOG_INFO, "bits_per_raw_sample > 8, forcing coder 1\n"); | |
735 | s->ac = 2; | |
736 | } | |
737 | if (!s->ac) { | |
738 | av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n"); | |
739 | return AVERROR(ENOSYS); | |
740 | } | |
741 | s->version = FFMAX(s->version, 1); | |
742 | case AV_PIX_FMT_GRAY8: | |
743 | case AV_PIX_FMT_YUV444P: | |
744 | case AV_PIX_FMT_YUV440P: | |
745 | case AV_PIX_FMT_YUV422P: | |
746 | case AV_PIX_FMT_YUV420P: | |
747 | case AV_PIX_FMT_YUV411P: | |
748 | case AV_PIX_FMT_YUV410P: | |
749 | case AV_PIX_FMT_YUVA444P: | |
750 | case AV_PIX_FMT_YUVA422P: | |
751 | case AV_PIX_FMT_YUVA420P: | |
752 | s->chroma_planes = desc->nb_components < 3 ? 0 : 1; | |
753 | s->colorspace = 0; | |
754 | s->transparency = desc->nb_components == 4; | |
755 | break; | |
756 | case AV_PIX_FMT_RGB32: | |
757 | s->colorspace = 1; | |
758 | s->transparency = 1; | |
759 | s->chroma_planes = 1; | |
760 | break; | |
761 | case AV_PIX_FMT_0RGB32: | |
762 | s->colorspace = 1; | |
763 | s->chroma_planes = 1; | |
764 | break; | |
765 | case AV_PIX_FMT_GBRP9: | |
766 | if (!avctx->bits_per_raw_sample) | |
767 | s->bits_per_raw_sample = 9; | |
768 | case AV_PIX_FMT_GBRP10: | |
769 | if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) | |
770 | s->bits_per_raw_sample = 10; | |
771 | case AV_PIX_FMT_GBRP12: | |
772 | if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) | |
773 | s->bits_per_raw_sample = 12; | |
774 | case AV_PIX_FMT_GBRP14: | |
775 | if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) | |
776 | s->bits_per_raw_sample = 14; | |
777 | else if (!s->bits_per_raw_sample) | |
778 | s->bits_per_raw_sample = avctx->bits_per_raw_sample; | |
779 | s->colorspace = 1; | |
780 | s->chroma_planes = 1; | |
781 | s->version = FFMAX(s->version, 1); | |
782 | if (!s->ac) { | |
783 | av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n"); | |
784 | return AVERROR(ENOSYS); | |
785 | } | |
786 | break; | |
787 | default: | |
788 | av_log(avctx, AV_LOG_ERROR, "format not supported\n"); | |
789 | return AVERROR(ENOSYS); | |
790 | } | |
791 | if (s->transparency) { | |
792 | av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n"); | |
793 | } | |
794 | if (avctx->context_model > 1U) { | |
795 | av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model); | |
796 | return AVERROR(EINVAL); | |
797 | } | |
798 | ||
799 | if (s->ac > 1) | |
800 | for (i = 1; i < 256; i++) | |
801 | s->state_transition[i] = ver2_state[i]; | |
802 | ||
803 | for (i = 0; i < 256; i++) { | |
804 | s->quant_table_count = 2; | |
805 | if (s->bits_per_raw_sample <= 8) { | |
806 | s->quant_tables[0][0][i]= quant11[i]; | |
807 | s->quant_tables[0][1][i]= 11*quant11[i]; | |
808 | s->quant_tables[0][2][i]= 11*11*quant11[i]; | |
809 | s->quant_tables[1][0][i]= quant11[i]; | |
810 | s->quant_tables[1][1][i]= 11*quant11[i]; | |
811 | s->quant_tables[1][2][i]= 11*11*quant5 [i]; | |
812 | s->quant_tables[1][3][i]= 5*11*11*quant5 [i]; | |
813 | s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i]; | |
814 | } else { | |
815 | s->quant_tables[0][0][i]= quant9_10bit[i]; | |
816 | s->quant_tables[0][1][i]= 11*quant9_10bit[i]; | |
817 | s->quant_tables[0][2][i]= 11*11*quant9_10bit[i]; | |
818 | s->quant_tables[1][0][i]= quant9_10bit[i]; | |
819 | s->quant_tables[1][1][i]= 11*quant9_10bit[i]; | |
820 | s->quant_tables[1][2][i]= 11*11*quant5_10bit[i]; | |
821 | s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i]; | |
822 | s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i]; | |
823 | } | |
824 | } | |
825 | s->context_count[0] = (11 * 11 * 11 + 1) / 2; | |
826 | s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2; | |
827 | memcpy(s->quant_table, s->quant_tables[avctx->context_model], | |
828 | sizeof(s->quant_table)); | |
829 | ||
830 | for (i = 0; i < s->plane_count; i++) { | |
831 | PlaneContext *const p = &s->plane[i]; | |
832 | ||
833 | memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table)); | |
834 | p->quant_table_index = avctx->context_model; | |
835 | p->context_count = s->context_count[p->quant_table_index]; | |
836 | } | |
837 | ||
838 | if ((ret = ffv1_allocate_initial_states(s)) < 0) | |
839 | return ret; | |
840 | ||
841 | avctx->coded_frame = av_frame_alloc(); | |
842 | if (!avctx->coded_frame) | |
843 | return AVERROR(ENOMEM); | |
844 | ||
845 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; | |
846 | ||
847 | if (!s->transparency) | |
848 | s->plane_count = 2; | |
849 | if (!s->chroma_planes && s->version > 3) | |
850 | s->plane_count--; | |
851 | ||
852 | avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); | |
853 | s->picture_number = 0; | |
854 | ||
855 | if (avctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) { | |
856 | for (i = 0; i < s->quant_table_count; i++) { | |
857 | s->rc_stat2[i] = av_mallocz(s->context_count[i] * | |
858 | sizeof(*s->rc_stat2[i])); | |
859 | if (!s->rc_stat2[i]) | |
860 | return AVERROR(ENOMEM); | |
861 | } | |
862 | } | |
863 | if (avctx->stats_in) { | |
864 | char *p = avctx->stats_in; | |
865 | uint8_t (*best_state)[256] = av_malloc_array(256, 256); | |
866 | int gob_count = 0; | |
867 | char *next; | |
868 | if (!best_state) | |
869 | return AVERROR(ENOMEM); | |
870 | ||
871 | av_assert0(s->version >= 2); | |
872 | ||
873 | for (;;) { | |
874 | for (j = 0; j < 256; j++) | |
875 | for (i = 0; i < 2; i++) { | |
876 | s->rc_stat[j][i] = strtol(p, &next, 0); | |
877 | if (next == p) { | |
878 | av_log(avctx, AV_LOG_ERROR, | |
879 | "2Pass file invalid at %d %d [%s]\n", j, i, p); | |
880 | av_freep(&best_state); | |
881 | return AVERROR_INVALIDDATA; | |
882 | } | |
883 | p = next; | |
884 | } | |
885 | for (i = 0; i < s->quant_table_count; i++) | |
886 | for (j = 0; j < s->context_count[i]; j++) { | |
887 | for (k = 0; k < 32; k++) | |
888 | for (m = 0; m < 2; m++) { | |
889 | s->rc_stat2[i][j][k][m] = strtol(p, &next, 0); | |
890 | if (next == p) { | |
891 | av_log(avctx, AV_LOG_ERROR, | |
892 | "2Pass file invalid at %d %d %d %d [%s]\n", | |
893 | i, j, k, m, p); | |
894 | av_freep(&best_state); | |
895 | return AVERROR_INVALIDDATA; | |
896 | } | |
897 | p = next; | |
898 | } | |
899 | } | |
900 | gob_count = strtol(p, &next, 0); | |
901 | if (next == p || gob_count <= 0) { | |
902 | av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n"); | |
903 | av_freep(&best_state); | |
904 | return AVERROR_INVALIDDATA; | |
905 | } | |
906 | p = next; | |
907 | while (*p == '\n' || *p == ' ') | |
908 | p++; | |
909 | if (p[0] == 0) | |
910 | break; | |
911 | } | |
912 | sort_stt(s, s->state_transition); | |
913 | ||
914 | find_best_state(best_state, s->state_transition); | |
915 | ||
916 | for (i = 0; i < s->quant_table_count; i++) { | |
917 | for (k = 0; k < 32; k++) { | |
918 | double a=0, b=0; | |
919 | int jp = 0; | |
920 | for (j = 0; j < s->context_count[i]; j++) { | |
921 | double p = 128; | |
922 | if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) { | |
923 | if (a+b) | |
924 | p = 256.0 * b / (a + b); | |
925 | s->initial_states[i][jp][k] = | |
926 | best_state[av_clip(round(p), 1, 255)][av_clip((a + b) / gob_count, 0, 255)]; | |
927 | for(jp++; jp<j; jp++) | |
928 | s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k]; | |
929 | a=b=0; | |
930 | } | |
931 | a += s->rc_stat2[i][j][k][0]; | |
932 | b += s->rc_stat2[i][j][k][1]; | |
933 | if (a+b) { | |
934 | p = 256.0 * b / (a + b); | |
935 | } | |
936 | s->initial_states[i][j][k] = | |
937 | best_state[av_clip(round(p), 1, 255)][av_clip((a + b) / gob_count, 0, 255)]; | |
938 | } | |
939 | } | |
940 | } | |
941 | av_freep(&best_state); | |
942 | } | |
943 | ||
944 | if (s->version > 1) { | |
945 | s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1; | |
946 | for (; s->num_v_slices < 9; s->num_v_slices++) { | |
947 | for (s->num_h_slices = s->num_v_slices; s->num_h_slices < 2*s->num_v_slices; s->num_h_slices++) { | |
948 | if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64 || !avctx->slices) | |
949 | goto slices_ok; | |
950 | } | |
951 | } | |
952 | av_log(avctx, AV_LOG_ERROR, | |
953 | "Unsupported number %d of slices requested, please specify a " | |
954 | "supported number with -slices (ex:4,6,9,12,16, ...)\n", | |
955 | avctx->slices); | |
956 | return AVERROR(ENOSYS); | |
957 | slices_ok: | |
958 | if ((ret = write_extradata(s)) < 0) | |
959 | return ret; | |
960 | } | |
961 | ||
962 | if ((ret = ffv1_init_slice_contexts(s)) < 0) | |
963 | return ret; | |
964 | if ((ret = ffv1_init_slices_state(s)) < 0) | |
965 | return ret; | |
966 | ||
967 | #define STATS_OUT_SIZE 1024 * 1024 * 6 | |
968 | if (avctx->flags & CODEC_FLAG_PASS1) { | |
969 | avctx->stats_out = av_mallocz(STATS_OUT_SIZE); | |
970 | if (!avctx->stats_out) | |
971 | return AVERROR(ENOMEM); | |
972 | for (i = 0; i < s->quant_table_count; i++) | |
973 | for (j = 0; j < s->slice_count; j++) { | |
974 | FFV1Context *sf = s->slice_context[j]; | |
975 | av_assert0(!sf->rc_stat2[i]); | |
976 | sf->rc_stat2[i] = av_mallocz(s->context_count[i] * | |
977 | sizeof(*sf->rc_stat2[i])); | |
978 | if (!sf->rc_stat2[i]) | |
979 | return AVERROR(ENOMEM); | |
980 | } | |
981 | } | |
982 | ||
983 | return 0; | |
984 | } | |
985 | ||
986 | static void encode_slice_header(FFV1Context *f, FFV1Context *fs) | |
987 | { | |
988 | RangeCoder *c = &fs->c; | |
989 | uint8_t state[CONTEXT_SIZE]; | |
990 | int j; | |
991 | memset(state, 128, sizeof(state)); | |
992 | ||
993 | put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0); | |
994 | put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0); | |
995 | put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0); | |
996 | put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0); | |
997 | for (j=0; j<f->plane_count; j++) { | |
998 | put_symbol(c, state, f->plane[j].quant_table_index, 0); | |
999 | av_assert0(f->plane[j].quant_table_index == f->avctx->context_model); | |
1000 | } | |
1001 | if (!f->picture.f->interlaced_frame) | |
1002 | put_symbol(c, state, 3, 0); | |
1003 | else | |
1004 | put_symbol(c, state, 1 + !f->picture.f->top_field_first, 0); | |
1005 | put_symbol(c, state, f->picture.f->sample_aspect_ratio.num, 0); | |
1006 | put_symbol(c, state, f->picture.f->sample_aspect_ratio.den, 0); | |
1007 | if (f->version > 3) { | |
1008 | put_rac(c, state, fs->slice_coding_mode == 1); | |
1009 | if (fs->slice_coding_mode == 1) | |
1010 | ffv1_clear_slice_state(f, fs); | |
1011 | put_symbol(c, state, fs->slice_coding_mode, 0); | |
1012 | if (fs->slice_coding_mode != 1) { | |
1013 | put_symbol(c, state, fs->slice_rct_by_coef, 0); | |
1014 | put_symbol(c, state, fs->slice_rct_ry_coef, 0); | |
1015 | } | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | static void choose_rct_params(FFV1Context *fs, uint8_t *src[3], const int stride[3], int w, int h) | |
1020 | { | |
1021 | #define NB_Y_COEFF 15 | |
1022 | static const int rct_y_coeff[15][2] = { | |
1023 | {0, 0}, // 4G | |
1024 | {1, 1}, // R + 2G + B | |
1025 | {2, 2}, // 2R + 2B | |
1026 | {0, 2}, // 2G + 2B | |
1027 | {2, 0}, // 2R + 2G | |
1028 | {4, 0}, // 4R | |
1029 | {0, 4}, // 4B | |
1030 | ||
1031 | {0, 3}, // 1G + 3B | |
1032 | {3, 0}, // 3R + 1G | |
1033 | {3, 1}, // 3R + B | |
1034 | {1, 3}, // R + 3B | |
1035 | {1, 2}, // R + G + 2B | |
1036 | {2, 1}, // 2R + G + B | |
1037 | {0, 1}, // 3G + B | |
1038 | {1, 0}, // R + 3G | |
1039 | }; | |
1040 | ||
1041 | int stat[NB_Y_COEFF] = {0}; | |
1042 | int x, y, i, p, best; | |
1043 | int16_t *sample[3]; | |
1044 | int lbd = fs->bits_per_raw_sample <= 8; | |
1045 | ||
1046 | for (y = 0; y < h; y++) { | |
1047 | int lastr=0, lastg=0, lastb=0; | |
1048 | for (p = 0; p < 3; p++) | |
1049 | sample[p] = fs->sample_buffer + p*w; | |
1050 | ||
1051 | for (x = 0; x < w; x++) { | |
1052 | int b, g, r; | |
1053 | int ab, ag, ar; | |
1054 | if (lbd) { | |
1055 | unsigned v = *((uint32_t*)(src[0] + x*4 + stride[0]*y)); | |
1056 | b = v & 0xFF; | |
1057 | g = (v >> 8) & 0xFF; | |
1058 | r = (v >> 16) & 0xFF; | |
1059 | } else { | |
1060 | b = *((uint16_t*)(src[0] + x*2 + stride[0]*y)); | |
1061 | g = *((uint16_t*)(src[1] + x*2 + stride[1]*y)); | |
1062 | r = *((uint16_t*)(src[2] + x*2 + stride[2]*y)); | |
1063 | } | |
1064 | ||
1065 | ar = r - lastr; | |
1066 | ag = g - lastg; | |
1067 | ab = b - lastb; | |
1068 | if (x && y) { | |
1069 | int bg = ag - sample[0][x]; | |
1070 | int bb = ab - sample[1][x]; | |
1071 | int br = ar - sample[2][x]; | |
1072 | ||
1073 | br -= bg; | |
1074 | bb -= bg; | |
1075 | ||
1076 | for (i = 0; i<NB_Y_COEFF; i++) { | |
1077 | stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2)); | |
1078 | } | |
1079 | ||
1080 | } | |
1081 | sample[0][x] = ag; | |
1082 | sample[1][x] = ab; | |
1083 | sample[2][x] = ar; | |
1084 | ||
1085 | lastr = r; | |
1086 | lastg = g; | |
1087 | lastb = b; | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | best = 0; | |
1092 | for (i=1; i<NB_Y_COEFF; i++) { | |
1093 | if (stat[i] < stat[best]) | |
1094 | best = i; | |
1095 | } | |
1096 | ||
1097 | fs->slice_rct_by_coef = rct_y_coeff[best][1]; | |
1098 | fs->slice_rct_ry_coef = rct_y_coeff[best][0]; | |
1099 | } | |
1100 | ||
1101 | static int encode_slice(AVCodecContext *c, void *arg) | |
1102 | { | |
1103 | FFV1Context *fs = *(void **)arg; | |
1104 | FFV1Context *f = fs->avctx->priv_data; | |
1105 | int width = fs->slice_width; | |
1106 | int height = fs->slice_height; | |
1107 | int x = fs->slice_x; | |
1108 | int y = fs->slice_y; | |
1109 | const AVFrame *const p = f->picture.f; | |
1110 | const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step_minus1 + 1; | |
1111 | int ret; | |
1112 | RangeCoder c_bak = fs->c; | |
1113 | uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0], | |
1114 | p->data[1] + ps*x + y*p->linesize[1], | |
1115 | p->data[2] + ps*x + y*p->linesize[2]}; | |
1116 | ||
1117 | fs->slice_coding_mode = 0; | |
1118 | if (f->version > 3) { | |
1119 | choose_rct_params(fs, planes, p->linesize, width, height); | |
1120 | } else { | |
1121 | fs->slice_rct_by_coef = 1; | |
1122 | fs->slice_rct_ry_coef = 1; | |
1123 | } | |
1124 | ||
1125 | retry: | |
1126 | if (c->coded_frame->key_frame) | |
1127 | ffv1_clear_slice_state(f, fs); | |
1128 | if (f->version > 2) { | |
1129 | encode_slice_header(f, fs); | |
1130 | } | |
1131 | if (!fs->ac) { | |
1132 | if (f->version > 2) | |
1133 | put_rac(&fs->c, (uint8_t[]) { 129 }, 0); | |
1134 | fs->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&fs->c) : 0; | |
1135 | init_put_bits(&fs->pb, | |
1136 | fs->c.bytestream_start + fs->ac_byte_count, | |
1137 | fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count); | |
1138 | } | |
1139 | ||
1140 | if (f->colorspace == 0) { | |
1141 | const int chroma_width = FF_CEIL_RSHIFT(width, f->chroma_h_shift); | |
1142 | const int chroma_height = FF_CEIL_RSHIFT(height, f->chroma_v_shift); | |
1143 | const int cx = x >> f->chroma_h_shift; | |
1144 | const int cy = y >> f->chroma_v_shift; | |
1145 | ||
1146 | ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0); | |
1147 | ||
1148 | if (f->chroma_planes) { | |
1149 | ret |= encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1); | |
1150 | ret |= encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1); | |
1151 | } | |
1152 | if (fs->transparency) | |
1153 | ret |= encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2); | |
1154 | } else { | |
1155 | ret = encode_rgb_frame(fs, planes, width, height, p->linesize); | |
1156 | } | |
1157 | emms_c(); | |
1158 | ||
1159 | if (ret < 0) { | |
1160 | av_assert0(fs->slice_coding_mode == 0); | |
1161 | if (fs->version < 4 || !fs->ac) { | |
1162 | av_log(c, AV_LOG_ERROR, "Buffer too small\n"); | |
1163 | return ret; | |
1164 | } | |
1165 | av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n"); | |
1166 | fs->slice_coding_mode = 1; | |
1167 | fs->c = c_bak; | |
1168 | goto retry; | |
1169 | } | |
1170 | ||
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
1175 | const AVFrame *pict, int *got_packet) | |
1176 | { | |
1177 | FFV1Context *f = avctx->priv_data; | |
1178 | RangeCoder *const c = &f->slice_context[0]->c; | |
1179 | AVFrame *const p = f->picture.f; | |
1180 | int used_count = 0; | |
1181 | uint8_t keystate = 128; | |
1182 | uint8_t *buf_p; | |
1183 | int i, ret; | |
1184 | int64_t maxsize = FF_MIN_BUFFER_SIZE | |
1185 | + avctx->width*avctx->height*35LL*4; | |
1186 | ||
1187 | if(!pict) { | |
1188 | if (avctx->flags & CODEC_FLAG_PASS1) { | |
1189 | int j, k, m; | |
1190 | char *p = avctx->stats_out; | |
1191 | char *end = p + STATS_OUT_SIZE; | |
1192 | ||
1193 | memset(f->rc_stat, 0, sizeof(f->rc_stat)); | |
1194 | for (i = 0; i < f->quant_table_count; i++) | |
1195 | memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i])); | |
1196 | ||
1197 | for (j = 0; j < f->slice_count; j++) { | |
1198 | FFV1Context *fs = f->slice_context[j]; | |
1199 | for (i = 0; i < 256; i++) { | |
1200 | f->rc_stat[i][0] += fs->rc_stat[i][0]; | |
1201 | f->rc_stat[i][1] += fs->rc_stat[i][1]; | |
1202 | } | |
1203 | for (i = 0; i < f->quant_table_count; i++) { | |
1204 | for (k = 0; k < f->context_count[i]; k++) | |
1205 | for (m = 0; m < 32; m++) { | |
1206 | f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0]; | |
1207 | f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1]; | |
1208 | } | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | for (j = 0; j < 256; j++) { | |
1213 | snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ", | |
1214 | f->rc_stat[j][0], f->rc_stat[j][1]); | |
1215 | p += strlen(p); | |
1216 | } | |
1217 | snprintf(p, end - p, "\n"); | |
1218 | ||
1219 | for (i = 0; i < f->quant_table_count; i++) { | |
1220 | for (j = 0; j < f->context_count[i]; j++) | |
1221 | for (m = 0; m < 32; m++) { | |
1222 | snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ", | |
1223 | f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]); | |
1224 | p += strlen(p); | |
1225 | } | |
1226 | } | |
1227 | snprintf(p, end - p, "%d\n", f->gob_count); | |
1228 | } | |
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | if (f->version > 3) | |
1233 | maxsize = FF_MIN_BUFFER_SIZE + avctx->width*avctx->height*3LL*4; | |
1234 | ||
1235 | if ((ret = ff_alloc_packet2(avctx, pkt, maxsize)) < 0) | |
1236 | return ret; | |
1237 | ||
1238 | ff_init_range_encoder(c, pkt->data, pkt->size); | |
1239 | ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); | |
1240 | ||
1241 | av_frame_unref(p); | |
1242 | if ((ret = av_frame_ref(p, pict)) < 0) | |
1243 | return ret; | |
1244 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; | |
1245 | ||
1246 | if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) { | |
1247 | put_rac(c, &keystate, 1); | |
1248 | avctx->coded_frame->key_frame = 1; | |
1249 | f->gob_count++; | |
1250 | write_header(f); | |
1251 | } else { | |
1252 | put_rac(c, &keystate, 0); | |
1253 | avctx->coded_frame->key_frame = 0; | |
1254 | } | |
1255 | ||
1256 | if (f->ac > 1) { | |
1257 | int i; | |
1258 | for (i = 1; i < 256; i++) { | |
1259 | c->one_state[i] = f->state_transition[i]; | |
1260 | c->zero_state[256 - i] = 256 - c->one_state[i]; | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | for (i = 1; i < f->slice_count; i++) { | |
1265 | FFV1Context *fs = f->slice_context[i]; | |
1266 | uint8_t *start = pkt->data + (pkt->size - used_count) * (int64_t)i / f->slice_count; | |
1267 | int len = pkt->size / f->slice_count; | |
1268 | ff_init_range_encoder(&fs->c, start, len); | |
1269 | } | |
1270 | avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, | |
1271 | f->slice_count, sizeof(void *)); | |
1272 | ||
1273 | buf_p = pkt->data; | |
1274 | for (i = 0; i < f->slice_count; i++) { | |
1275 | FFV1Context *fs = f->slice_context[i]; | |
1276 | int bytes; | |
1277 | ||
1278 | if (fs->ac) { | |
1279 | uint8_t state = 129; | |
1280 | put_rac(&fs->c, &state, 0); | |
1281 | bytes = ff_rac_terminate(&fs->c); | |
1282 | } else { | |
1283 | flush_put_bits(&fs->pb); // FIXME: nicer padding | |
1284 | bytes = fs->ac_byte_count + (put_bits_count(&fs->pb) + 7) / 8; | |
1285 | } | |
1286 | if (i > 0 || f->version > 2) { | |
1287 | av_assert0(bytes < pkt->size / f->slice_count); | |
1288 | memmove(buf_p, fs->c.bytestream_start, bytes); | |
1289 | av_assert0(bytes < (1 << 24)); | |
1290 | AV_WB24(buf_p + bytes, bytes); | |
1291 | bytes += 3; | |
1292 | } | |
1293 | if (f->ec) { | |
1294 | unsigned v; | |
1295 | buf_p[bytes++] = 0; | |
1296 | v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes); | |
1297 | AV_WL32(buf_p + bytes, v); | |
1298 | bytes += 4; | |
1299 | } | |
1300 | buf_p += bytes; | |
1301 | } | |
1302 | ||
1303 | if (avctx->flags & CODEC_FLAG_PASS1) | |
1304 | avctx->stats_out[0] = '\0'; | |
1305 | ||
1306 | f->picture_number++; | |
1307 | pkt->size = buf_p - pkt->data; | |
1308 | pkt->pts = | |
1309 | pkt->dts = pict->pts; | |
1310 | pkt->flags |= AV_PKT_FLAG_KEY * avctx->coded_frame->key_frame; | |
1311 | *got_packet = 1; | |
1312 | ||
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static av_cold int encode_close(AVCodecContext *avctx) | |
1317 | { | |
1318 | av_frame_free(&avctx->coded_frame); | |
1319 | ffv1_close(avctx); | |
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | #define OFFSET(x) offsetof(FFV1Context, x) | |
1324 | #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM | |
1325 | static const AVOption options[] = { | |
1326 | { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, | |
1327 | { NULL } | |
1328 | }; | |
1329 | ||
1330 | static const AVClass ffv1_class = { | |
1331 | .class_name = "ffv1 encoder", | |
1332 | .item_name = av_default_item_name, | |
1333 | .option = options, | |
1334 | .version = LIBAVUTIL_VERSION_INT, | |
1335 | }; | |
1336 | ||
1337 | static const AVCodecDefault ffv1_defaults[] = { | |
1338 | { "coder", "-1" }, | |
1339 | { NULL }, | |
1340 | }; | |
1341 | ||
1342 | AVCodec ff_ffv1_encoder = { | |
1343 | .name = "ffv1", | |
1344 | .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"), | |
1345 | .type = AVMEDIA_TYPE_VIDEO, | |
1346 | .id = AV_CODEC_ID_FFV1, | |
1347 | .priv_data_size = sizeof(FFV1Context), | |
1348 | .init = encode_init, | |
1349 | .encode2 = encode_frame, | |
1350 | .close = encode_close, | |
1351 | .capabilities = CODEC_CAP_SLICE_THREADS | CODEC_CAP_DELAY, | |
1352 | .pix_fmts = (const enum AVPixelFormat[]) { | |
1353 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV444P, | |
1354 | AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P, | |
1355 | AV_PIX_FMT_YUV410P, AV_PIX_FMT_0RGB32, AV_PIX_FMT_RGB32, AV_PIX_FMT_YUV420P16, | |
1356 | AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, | |
1357 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, | |
1358 | AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16, | |
1359 | AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10, | |
1360 | AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9, | |
1361 | AV_PIX_FMT_GRAY16, AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, | |
1362 | AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, | |
1363 | AV_PIX_FMT_NONE | |
1364 | ||
1365 | }, | |
1366 | .defaults = ffv1_defaults, | |
1367 | .priv_class = &ffv1_class, | |
1368 | }; |