FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/ffv1enc.c
Date: 2026-04-24 19:58:39
Exec Total Coverage
Lines: 613 1076 57.0%
Functions: 21 28 75.0%
Branches: 440 1023 43.0%
Line Branch Exec Source
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/mem.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/qsort.h"
35
36 #include "avcodec.h"
37 #include "encode.h"
38 #include "codec_internal.h"
39 #include "put_bits.h"
40 #include "put_golomb.h"
41 #include "rangecoder.h"
42 #include "ffv1.h"
43 #include "ffv1enc.h"
44
45 static const int8_t quant5_10bit[256] = {
46 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
47 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
48 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
49 1, 1, 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, -2,
57 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
58 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1,
59 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
60 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
61 -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0,
62 };
63
64 static const int8_t quant5[256] = {
65 0, 1, 1, 1, 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, -2, -2, -2,
79 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
80 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1,
81 };
82
83 static const int8_t quant9_10bit[256] = {
84 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
85 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
86 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
87 3, 3, 3, 3, 3, 3, 3, 3, 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, -4, -4, -4, -4, -4, -4, -4,
95 -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
96 -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3,
97 -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3,
98 -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
99 -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0,
100 };
101
102 static const int8_t quant11[256] = {
103 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
104 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
105 4, 4, 4, 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, -5, -5,
115 -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
116 -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4,
117 -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
118 -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1,
119 };
120
121 static const uint8_t ver2_state[256] = {
122 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49,
123 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39,
124 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52,
125 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69,
126 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97,
127 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98,
128 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125,
129 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129,
130 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148,
131 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160,
132 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178,
133 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196,
134 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214,
135 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225,
136 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242,
137 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255,
138 };
139
140 8 static void find_best_state(uint8_t best_state[256][256],
141 const uint8_t one_state[256])
142 {
143 int i, j, k, m;
144 uint32_t l2tab[256];
145
146
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147 2040 l2tab[i] = -log2(i / 256.0) * ((1U << 31) / 8);
148
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150 uint64_t best_len[256];
151
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153 524288 best_len[j] = UINT64_MAX;
154
155
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 44088 for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) {
156 42040 uint32_t occ[256] = { 0 };
157 42040 uint64_t len = 0;
158 42040 occ[j] = UINT32_MAX;
159
160
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 42040 if (!one_state[j])
161 ✗ continue;
162
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 10804280 for (k = 0; k < 256; k++) {
164 10762240 uint32_t newocc[256] = { 0 };
165
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166
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 2744371200 if (occ[m]) {
167 861994804 len += (occ[m]*(( i *(uint64_t)l2tab[ m]
168 861994804 + (256-i)*(uint64_t)l2tab[256-m])>>8)) >> 8;
169 }
170
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 10762240 if (len < best_len[k]) {
171 3100046 best_len[k] = len;
172 3100046 best_state[i][k] = j;
173 }
174
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 2755133440 for (m = 1; m < 256; m++)
175
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 2744371200 if (occ[m]) {
176 861994804 newocc[ one_state[ m]] += occ[m] * (uint64_t) i >> 8;
177 861994804 newocc[256 - one_state[256 - m]] += occ[m] * (uint64_t)(256 - i) >> 8;
178 }
179 10762240 memcpy(occ, newocc, sizeof(occ));
180 }
181 }
182 }
183 8 }
184
185 239905402 static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c,
186 uint8_t *state, int v,
187 int is_signed,
188 uint64_t rc_stat[256][2],
189 uint64_t rc_stat2[32][2])
190 {
191 int i;
192
193 #define put_rac(C, S, B) \
194 do { \
195 if (rc_stat) { \
196 rc_stat[*(S)][B]++; \
197 rc_stat2[(S) - state][B]++; \
198 } \
199 put_rac(C, S, B); \
200 } while (0)
201
202
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 239905402 if (v) {
203
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 150069347 const unsigned a = is_signed ? FFABS(v) : v;
204 150069347 const int e = av_log2(a);
205
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 150069347 put_rac(c, state + 0, 0);
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 150069347 if (e <= 9) {
207
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208
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 435122815 put_rac(c, state + 1 + i, 1); // 1..10
209
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 125107169 put_rac(c, state + 1 + i, 0);
210
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 435122815 put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31
213
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 125107169 if (is_signed)
215
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 125073255 put_rac(c, state + 11 + e, v < 0); // 11..21
216 } else {
217
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 269770289 put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10
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 24962178 put_rac(c, state + 1 + 9, 0);
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 269770289 put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31
223
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 24962178 if (is_signed)
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 24962178 put_rac(c, state + 11 + 10, v < 0); // 11..21
226 }
227 } else {
228
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 89836055 put_rac(c, state + 0, 1);
229 }
230 #undef put_rac
231 239905402 }
232
233 1702002 static av_noinline void put_symbol(RangeCoder *c, uint8_t *state,
234 int v, int is_signed)
235 {
236 1702002 put_symbol_inline(c, state, v, is_signed, NULL, NULL);
237 1702002 }
238
239
240 163659991 static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state,
241 int v, int bits)
242 {
243 int i, k, code;
244 163659991 v = fold(v - state->bias, bits);
245
246 163659991 i = state->count;
247 163659991 k = 0;
248
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 436192165 while (i < state->error_sum) { // FIXME: optimize
249 272532174 k++;
250 272532174 i += i;
251 }
252
253 av_assert2(k <= 16);
254
255 163659991 code = v ^ ((2 * state->drift + state->count) >> 31);
256
257 ff_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code,
258 state->bias, state->error_sum, state->drift, state->count, k);
259 163659991 set_sr_golomb(pb, code, k, 12, bits);
260
261 163659991 update_vlc_state(state, v);
262 163659991 }
263
264 #define TYPE int16_t
265 #define RENAME(name) name
266 #include "ffv1enc_template.c"
267 #undef TYPE
268 #undef RENAME
269
270 #define TYPE int32_t
271 #define RENAME(name) name ## 32
272 #include "ffv1enc_template.c"
273
274 23235 static int encode_plane(FFV1Context *f, FFV1SliceContext *sc,
275 const uint8_t *src, int w, int h,
276 int stride, int plane_index, int remap_index, int pixel_stride, int ac)
277 {
278 int x, y, i, ret;
279 23235 const int pass1 = !!(f->avctx->flags & AV_CODEC_FLAG_PASS1);
280
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 23235 const int ring_size = f->context_model ? 3 : 2;
281 int16_t *sample[3];
282 23235 sc->run_index = 0;
283
284 23235 sample[2] = sc->sample_buffer; // dummy to avoid UB pointer arithmetic
285
286 23235 memset(sc->sample_buffer, 0, ring_size * (w + 6) * sizeof(*sc->sample_buffer));
287
288
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 2237235 for (y = 0; y < h; y++) {
289
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 7540400 for (i = 0; i < ring_size; i++)
290 5326400 sample[i] = sc->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3;
291
292 2214000 sample[0][-1]= sample[1][0 ];
293 2214000 sample[1][ w]= sample[1][w-1];
294
295
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 2214000 if (f->bits_per_raw_sample <= 8) {
296
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 169257700 for (x = 0; x < w; x++)
297 168153700 sample[0][x] = src[x * pixel_stride + stride * y];
298
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 1104000 if (sc->remap)
299 ✗ for (x = 0; x < w; x++)
300 ✗ sample[0][x] = sc->fltmap[remap_index][ sample[0][x] ];
301
302
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 1104000 if((ret = encode_line(f, sc, f->avctx, w, sample, plane_index, 8, ac, pass1)) < 0)
303 ✗ return ret;
304 } else {
305
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 1110000 if (f->packed_at_lsb) {
306
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 101659200 for (x = 0; x < w; x++) {
307 100818600 sample[0][x] = ((uint16_t*)(src + stride*y))[x * pixel_stride];
308 }
309 } else {
310
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 46062000 for (x = 0; x < w; x++) {
311 45792600 sample[0][x] = ((uint16_t*)(src + stride*y))[x * pixel_stride] >> (16 - f->bits_per_raw_sample);
312 }
313 }
314
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 1110000 if (sc->remap)
315 ✗ for (x = 0; x < w; x++)
316 ✗ sample[0][x] = sc->fltmap[remap_index][ (uint16_t)sample[0][x] ];
317
318
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 1110000 if((ret = encode_line(f, sc, f->avctx, w, sample, plane_index, f->bits_per_raw_sample, ac, pass1)) < 0)
319 ✗ return ret;
320 }
321 }
322 23235 return 0;
323 }
324
325 ✗ static void load_plane(FFV1Context *f, FFV1SliceContext *sc,
326 const uint8_t *src, int w, int h,
327 int stride, int remap_index, int pixel_stride)
328 {
329 int x, y;
330
331 ✗ memset(sc->fltmap[remap_index], 0, 65536 * sizeof(*sc->fltmap[remap_index]));
332
333 ✗ for (y = 0; y < h; y++) {
334 ✗ if (f->bits_per_raw_sample <= 8) {
335 ✗ for (x = 0; x < w; x++)
336 ✗ sc->fltmap[remap_index][ src[x * pixel_stride + stride * y] ] = 1;
337 } else {
338 ✗ if (f->packed_at_lsb) {
339 ✗ for (x = 0; x < w; x++)
340 ✗ sc->fltmap[remap_index][ ((uint16_t*)(src + stride*y))[x * pixel_stride] ] = 1;
341 } else {
342 ✗ for (x = 0; x < w; x++)
343 ✗ sc->fltmap[remap_index][ ((uint16_t*)(src + stride*y))[x * pixel_stride] >> (16 - f->bits_per_raw_sample) ] = 1;
344 }
345 }
346 }
347 ✗ }
348
349 570 static void write_quant_table(RangeCoder *c, int16_t *quant_table)
350 {
351 570 int last = 0;
352 int i;
353 uint8_t state[CONTEXT_SIZE];
354 570 memset(state, 128, sizeof(state));
355
356
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 72960 for (i = 1; i < MAX_QUANT_TABLE_SIZE/2; i++)
357
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 72390 if (quant_table[i] != quant_table[i - 1]) {
358 1652 put_symbol(c, state, i - last - 1, 0);
359 1652 last = i;
360 }
361 570 put_symbol(c, state, i - last - 1, 0);
362 570 }
363
364 114 static void write_quant_tables(RangeCoder *c,
365 int16_t quant_table[MAX_CONTEXT_INPUTS][MAX_QUANT_TABLE_SIZE])
366 {
367 int i;
368
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 684 for (i = 0; i < 5; i++)
369 570 write_quant_table(c, quant_table[i]);
370 114 }
371
372 94 static int contains_non_128(uint8_t (*initial_state)[CONTEXT_SIZE],
373 int nb_contexts)
374 {
375
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 94 if (!initial_state)
376 ✗ return 0;
377
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 277532 for (int i = 0; i < nb_contexts; i++)
378
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 9155462 for (int j = 0; j < CONTEXT_SIZE; j++)
379
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 8878024 if (initial_state[i][j] != 128)
380 8 return 1;
381 86 return 0;
382 }
383
384 249 static void write_header(FFV1Context *f)
385 {
386 uint8_t state[CONTEXT_SIZE];
387 int i, j;
388 249 RangeCoder *const c = &f->slices[0].c;
389
390 249 memset(state, 128, sizeof(state));
391
392
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 249 if (f->version < 2) {
393 20 put_symbol(c, state, f->version, 0);
394 20 put_symbol(c, state, f->ac, 0);
395
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 20 if (f->ac == AC_RANGE_CUSTOM_TAB) {
396 ✗ for (i = 1; i < 256; i++)
397 ✗ put_symbol(c, state,
398 ✗ f->state_transition[i] - c->one_state[i], 1);
399 }
400 20 put_symbol(c, state, f->colorspace, 0); //YUV cs type
401
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 20 if (f->version > 0)
402 ✗ put_symbol(c, state, f->bits_per_raw_sample, 0);
403 20 put_rac(c, state, f->chroma_planes);
404 20 put_symbol(c, state, f->chroma_h_shift, 0);
405 20 put_symbol(c, state, f->chroma_v_shift, 0);
406 20 put_rac(c, state, f->transparency);
407
408 20 write_quant_tables(c, f->quant_tables[f->context_model]);
409
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 229 } else if (f->version < 3) {
410 20 put_symbol(c, state, f->slice_count, 0);
411
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 100 for (i = 0; i < f->slice_count; i++) {
412 80 FFV1SliceContext *fs = &f->slices[i];
413 80 put_symbol(c, state,
414 80 (fs->slice_x + 1) * f->num_h_slices / f->width, 0);
415 80 put_symbol(c, state,
416 80 (fs->slice_y + 1) * f->num_v_slices / f->height, 0);
417 80 put_symbol(c, state,
418 80 (fs->slice_width + 1) * f->num_h_slices / f->width - 1,
419 0);
420 80 put_symbol(c, state,
421 80 (fs->slice_height + 1) * f->num_v_slices / f->height - 1,
422 0);
423
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 240 for (j = 0; j < f->plane_count; j++) {
424 160 put_symbol(c, state, fs->plane[j].quant_table_index, 0);
425
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 160 av_assert0(fs->plane[j].quant_table_index == f->context_model);
426 }
427 }
428 }
429 249 }
430
431 51 static void set_micro_version(FFV1Context *f)
432 {
433 51 f->combined_version = f->version << 16;
434
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 51 if (f->version > 2) {
435
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 43 if (f->version == 3) {
436 43 f->micro_version = 4;
437 ✗ } else if (f->version == 4) {
438 ✗ f->micro_version = 9;
439 } else
440 ✗ av_assert0(0);
441
442 43 f->combined_version += f->micro_version;
443 } else
444
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 8 av_assert0(f->micro_version == 0);
445 51 }
446
447 47 av_cold int ff_ffv1_write_extradata(AVCodecContext *avctx)
448 {
449 47 FFV1Context *f = avctx->priv_data;
450
451 RangeCoder c;
452 uint8_t state[CONTEXT_SIZE];
453 int i, j, k;
454 uint8_t state2[32][CONTEXT_SIZE];
455 unsigned v;
456
457 47 memset(state2, 128, sizeof(state2));
458 47 memset(state, 128, sizeof(state));
459
460 47 f->avctx->extradata_size = 10000 + 4 +
461 (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32;
462 47 f->avctx->extradata = av_malloc(f->avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
463
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 47 if (!f->avctx->extradata)
464 ✗ return AVERROR(ENOMEM);
465 47 ff_init_range_encoder(&c, f->avctx->extradata, f->avctx->extradata_size);
466 47 ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
467
468 47 put_symbol(&c, state, f->version, 0);
469
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 47 if (f->version > 2)
470 43 put_symbol(&c, state, f->micro_version, 0);
471
472 47 put_symbol(&c, state, f->ac, 0);
473
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 47 if (f->ac == AC_RANGE_CUSTOM_TAB)
474
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 7424 for (i = 1; i < 256; i++)
475 7395 put_symbol(&c, state, f->state_transition[i] - c.one_state[i], 1);
476
477 47 put_symbol(&c, state, f->colorspace, 0); // YUV cs type
478 47 put_symbol(&c, state, f->bits_per_raw_sample, 0);
479 47 put_rac(&c, state, f->chroma_planes);
480 47 put_symbol(&c, state, f->chroma_h_shift, 0);
481 47 put_symbol(&c, state, f->chroma_v_shift, 0);
482 47 put_rac(&c, state, f->transparency);
483 47 put_symbol(&c, state, f->num_h_slices - 1, 0);
484 47 put_symbol(&c, state, f->num_v_slices - 1, 0);
485
486 47 put_symbol(&c, state, f->quant_table_count, 0);
487
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 141 for (i = 0; i < f->quant_table_count; i++)
488 94 write_quant_tables(&c, f->quant_tables[i]);
489
490
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 141 for (i = 0; i < f->quant_table_count; i++) {
491
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 94 if (contains_non_128(f->initial_states[i], f->context_count[i])) {
492 8 put_rac(&c, state, 1);
493
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 50512 for (j = 0; j < f->context_count[i]; j++)
494
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 1666632 for (k = 0; k < CONTEXT_SIZE; k++) {
495
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 1616128 int pred = j ? f->initial_states[i][j - 1][k] : 128;
496 1616128 put_symbol(&c, state2[k],
497 1616128 (int8_t)(f->initial_states[i][j][k] - pred), 1);
498 }
499 } else {
500 86 put_rac(&c, state, 0);
501 }
502 }
503
504
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 47 if (f->version > 2) {
505 43 put_symbol(&c, state, f->ec, 0);
506 43 put_symbol(&c, state, f->intra = (f->avctx->gop_size < 2), 0);
507 }
508
509 47 f->avctx->extradata_size = ff_rac_terminate(&c, 0);
510
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 47 v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), f->crcref, f->avctx->extradata, f->avctx->extradata_size) ^ (f->crcref ? 0x8CD88196 : 0);
511 47 AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v);
512 47 f->avctx->extradata_size += 4;
513
514 47 return 0;
515 }
516
517 8 static int sort_stt(FFV1Context *s, uint8_t stt[256])
518 {
519 8 int i, i2, changed, print = 0;
520
521 do {
522 37 changed = 0;
523
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 8621 for (i = 12; i < 244; i++) {
524
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 34225 for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) {
525
526 #define COST(old, new) \
527 s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \
528 s->rc_stat[old][1] * -log2((new) / 256.0)
529
530 #define COST2(old, new) \
531 COST(old, new) + COST(256 - (old), 256 - (new))
532
533 25641 double size0 = COST2(i, i) + COST2(i2, i2);
534 25641 double sizeX = COST2(i, i2) + COST2(i2, i);
535
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 25641 if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) {
536 int j;
537 5085 FFSWAP(int, stt[i], stt[i2]);
538 5085 FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]);
539 5085 FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]);
540
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 5085 if (i != 256 - i2) {
541 5084 FFSWAP(int, stt[256 - i], stt[256 - i2]);
542 5084 FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]);
543 5084 FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]);
544 }
545
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 1301760 for (j = 1; j < 256; j++) {
546
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 1296675 if (stt[j] == i)
547 5094 stt[j] = i2;
548
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 1291581 else if (stt[j] == i2)
549 5122 stt[j] = i;
550
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 1296675 if (i != 256 - i2) {
551
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 1296420 if (stt[256 - j] == 256 - i)
552 4906 stt[256 - j] = 256 - i2;
553
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 1291514 else if (stt[256 - j] == 256 - i2)
554 5124 stt[256 - j] = 256 - i;
555 }
556 }
557 5085 print = changed = 1;
558 }
559 }
560 }
561
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 37 } while (changed);
562 8 return print;
563 }
564
565
566 47 int ff_ffv1_encode_determine_slices(AVCodecContext *avctx)
567 {
568 47 FFV1Context *s = avctx->priv_data;
569 47 int plane_count = 1 + 2*s->chroma_planes + s->transparency;
570 47 int max_h_slices = AV_CEIL_RSHIFT(avctx->width , s->chroma_h_shift);
571 47 int max_v_slices = AV_CEIL_RSHIFT(avctx->height, s->chroma_v_shift);
572
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 47 s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
573 47 s->num_v_slices = FFMIN(s->num_v_slices, max_v_slices);
574
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 52 for (; s->num_v_slices <= 32; s->num_v_slices++) {
575
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 63 for (s->num_h_slices = s->num_v_slices; s->num_h_slices <= 2*s->num_v_slices; s->num_h_slices++) {
576 58 int maxw = (avctx->width + s->num_h_slices - 1) / s->num_h_slices;
577 58 int maxh = (avctx->height + s->num_v_slices - 1) / s->num_v_slices;
578
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 58 if (s->num_h_slices > max_h_slices || s->num_v_slices > max_v_slices)
579 ✗ continue;
580
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 58 if (maxw * maxh * (int64_t)(s->bits_per_raw_sample+1) * plane_count > 8<<24)
581 ✗ continue;
582
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 58 if (s->version < 4)
583
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 58 if ( ff_need_new_slices(avctx->width , s->num_h_slices, s->chroma_h_shift)
584
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 58 ||ff_need_new_slices(avctx->height, s->num_v_slices, s->chroma_v_shift))
585 ✗ continue;
586
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 58 if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= MAX_SLICES)
587 4 return 0;
588
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 54 if (maxw*maxh > 360*288)
589 3 continue;
590
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 51 if (!avctx->slices)
591 43 return 0;
592 }
593 }
594 ✗ av_log(avctx, AV_LOG_ERROR,
595 "Unsupported number %d of slices requested, please specify a "
596 "supported number with -slices (ex:4,6,9,12,16, ...)\n",
597 avctx->slices);
598 ✗ return AVERROR(ENOSYS);
599 }
600
601 51 av_cold int ff_ffv1_encode_init(AVCodecContext *avctx)
602 {
603 51 FFV1Context *s = avctx->priv_data;
604 int i, j, k, m, ret;
605
606
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 51 if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) ||
607
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 35 avctx->slices > 1)
608 20 s->version = FFMAX(s->version, 2);
609
610
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 51 if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) && s->ac == AC_GOLOMB_RICE) {
611 ✗ av_log(avctx, AV_LOG_ERROR, "2 Pass mode is not possible with golomb coding\n");
612 ✗ return AVERROR(EINVAL);
613 }
614
615 // Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability
616
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 51 if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576)
617 1 s->version = FFMAX(s->version, 2);
618
619
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 51 if (avctx->level <= 0 && s->version == 2) {
620 21 s->version = 3;
621 }
622
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 51 if (avctx->level >= 0 && avctx->level <= 4) {
623
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 29 if (avctx->level < s->version) {
624 ✗ av_log(avctx, AV_LOG_ERROR, "Version %d needed for requested features but %d requested\n", s->version, avctx->level);
625 ✗ return AVERROR(EINVAL);
626 }
627 29 s->version = avctx->level;
628
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 22 } else if (s->version < 3)
629 1 s->version = 3;
630
631
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 51 if (s->ec < 0) {
632
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 51 if (s->version >= 4) {
633 ✗ s->ec = 2;
634
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 51 } else if (s->version >= 3) {
635 43 s->ec = 1;
636 } else
637 8 s->ec = 0;
638 }
639
640 // CRC requires version 3+
641
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 51 if (s->ec == 1)
642 43 s->version = FFMAX(s->version, 3);
643
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 51 if (s->ec == 2) {
644 ✗ s->version = FFMAX(s->version, 4);
645 ✗ s->crcref = 0x7a8c4079;
646 }
647
648
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 51 if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
649 ✗ av_log(avctx, AV_LOG_ERROR, "Version 2 or 4 needed for requested features but version 2 or 4 is experimental and not enabled\n");
650 ✗ return AVERROR_INVALIDDATA;
651 }
652
653
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 51 if (s->ac == AC_RANGE_CUSTOM_TAB) {
654
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 7424 for (i = 1; i < 256; i++)
655 7395 s->state_transition[i] = ver2_state[i];
656 } else {
657 RangeCoder c;
658 22 ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
659
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 5632 for (i = 1; i < 256; i++)
660 5610 s->state_transition[i] = c.one_state[i];
661 }
662
663
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 13107 for (i = 0; i < 256; i++) {
664 13056 s->quant_table_count = 2;
665
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 13056 if ((s->qtable == -1 && s->bits_per_raw_sample <= 8) || s->qtable == 1) {
666 7680 s->quant_tables[0][0][i]= quant11[i];
667 7680 s->quant_tables[0][1][i]= 11*quant11[i];
668 7680 s->quant_tables[0][2][i]= 11*11*quant11[i];
669 7680 s->quant_tables[1][0][i]= quant11[i];
670 7680 s->quant_tables[1][1][i]= 11*quant11[i];
671 7680 s->quant_tables[1][2][i]= 11*11*quant5 [i];
672 7680 s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
673 7680 s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
674 7680 s->context_count[0] = (11 * 11 * 11 + 1) / 2;
675 7680 s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
676 } else {
677 5376 s->quant_tables[0][0][i]= quant9_10bit[i];
678 5376 s->quant_tables[0][1][i]= 9*quant9_10bit[i];
679 5376 s->quant_tables[0][2][i]= 9*9*quant9_10bit[i];
680 5376 s->quant_tables[1][0][i]= quant9_10bit[i];
681 5376 s->quant_tables[1][1][i]= 9*quant9_10bit[i];
682 5376 s->quant_tables[1][2][i]= 9*9*quant5_10bit[i];
683 5376 s->quant_tables[1][3][i]= 5*9*9*quant5_10bit[i];
684 5376 s->quant_tables[1][4][i]= 5*5*9*9*quant5_10bit[i];
685 5376 s->context_count[0] = (9 * 9 * 9 + 1) / 2;
686 5376 s->context_count[1] = (9 * 9 * 5 * 5 * 5 + 1) / 2;
687 }
688 }
689
690
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 51 if ((ret = ff_ffv1_allocate_initial_states(s)) < 0)
691 ✗ return ret;
692
693
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 51 if (!s->transparency)
694 51 s->plane_count = 2;
695
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 51 if (!s->chroma_planes && s->version > 3)
696 ✗ s->plane_count--;
697
698 51 s->picture_number = 0;
699
700
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 51 if (avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) {
701
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 48 for (i = 0; i < s->quant_table_count; i++) {
702 32 s->rc_stat2[i] = av_mallocz(s->context_count[i] *
703 sizeof(*s->rc_stat2[i]));
704
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 32 if (!s->rc_stat2[i])
705 ✗ return AVERROR(ENOMEM);
706 }
707 }
708
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 51 if (avctx->stats_in) {
709 8 char *p = avctx->stats_in;
710 8 uint8_t (*best_state)[256] = av_malloc_array(256, 256);
711 8 int gob_count = 0;
712 char *next;
713
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 8 if (!best_state)
714 ✗ return AVERROR(ENOMEM);
715
716
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 8 av_assert0(s->version >= 2);
717
718 for (;;) {
719
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 2056 for (j = 0; j < 256; j++)
720
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 6144 for (i = 0; i < 2; i++) {
721 4096 s->rc_stat[j][i] = strtol(p, &next, 0);
722
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 4096 if (next == p) {
723 ✗ av_log(avctx, AV_LOG_ERROR,
724 "2Pass file invalid at %d %d [%s]\n", j, i, p);
725 ✗ av_freep(&best_state);
726 ✗ return AVERROR_INVALIDDATA;
727 }
728 4096 p = next;
729 }
730
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 24 for (i = 0; i < s->quant_table_count; i++)
731
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 54644 for (j = 0; j < s->context_count[i]; j++) {
732
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 1802724 for (k = 0; k < 32; k++)
733
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 5244288 for (m = 0; m < 2; m++) {
734 3496192 s->rc_stat2[i][j][k][m] = strtol(p, &next, 0);
735
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 3496192 if (next == p) {
736 ✗ av_log(avctx, AV_LOG_ERROR,
737 "2Pass file invalid at %d %d %d %d [%s]\n",
738 i, j, k, m, p);
739 ✗ av_freep(&best_state);
740 ✗ return AVERROR_INVALIDDATA;
741 }
742 3496192 p = next;
743 }
744 }
745 8 gob_count = strtol(p, &next, 0);
746
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 8 if (next == p || gob_count <= 0) {
747 ✗ av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n");
748 ✗ av_freep(&best_state);
749 ✗ return AVERROR_INVALIDDATA;
750 }
751 8 p = next;
752
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 16 while (*p == '\n' || *p == ' ')
753 8 p++;
754
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 8 if (p[0] == 0)
755 8 break;
756 }
757
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 8 if (s->ac == AC_RANGE_CUSTOM_TAB)
758 8 sort_stt(s, s->state_transition);
759
760 8 find_best_state(best_state, s->state_transition);
761
762
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 24 for (i = 0; i < s->quant_table_count; i++) {
763
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 528 for (k = 0; k < 32; k++) {
764 512 double a=0, b=0;
765 512 int jp = 0;
766
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 1748608 for (j = 0; j < s->context_count[i]; j++) {
767 1748096 double p = 128;
768
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 1748096 if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) {
769
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 291323 if (a+b)
770 291303 p = 256.0 * b / (a + b);
771 291323 s->initial_states[i][jp][k] =
772 291323 best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
773
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 1175036 for(jp++; jp<j; jp++)
774 883713 s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k];
775 291323 a=b=0;
776 }
777 1748096 a += s->rc_stat2[i][j][k][0];
778 1748096 b += s->rc_stat2[i][j][k][1];
779
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 1748096 if (a+b) {
780 1284515 p = 256.0 * b / (a + b);
781 }
782 1748096 s->initial_states[i][j][k] =
783 1748096 best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
784 }
785 }
786 }
787 8 av_freep(&best_state);
788 }
789
790
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 51 if (s->version <= 1) {
791 /* Disable slices when the version doesn't support them */
792 4 s->num_h_slices = 1;
793 4 s->num_v_slices = 1;
794 }
795
796 51 set_micro_version(s);
797
798 51 return 0;
799 }
800
801 51 av_cold int ff_ffv1_encode_setup_plane_info(AVCodecContext *avctx,
802 enum AVPixelFormat pix_fmt)
803 {
804 51 FFV1Context *s = avctx->priv_data;
805 51 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
806
807 51 s->plane_count = 3;
808
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 51 switch(pix_fmt) {
809 ✗ case AV_PIX_FMT_GRAY9:
810 case AV_PIX_FMT_YUV444P9:
811 case AV_PIX_FMT_YUV422P9:
812 case AV_PIX_FMT_YUV420P9:
813 case AV_PIX_FMT_YUVA444P9:
814 case AV_PIX_FMT_YUVA422P9:
815 case AV_PIX_FMT_YUVA420P9:
816 ✗ if (!avctx->bits_per_raw_sample)
817 ✗ s->bits_per_raw_sample = 9;
818 case AV_PIX_FMT_GRAY10:
819 case AV_PIX_FMT_YUV444P10:
820 case AV_PIX_FMT_YUV440P10:
821 case AV_PIX_FMT_YUV420P10:
822 case AV_PIX_FMT_YUV422P10:
823 case AV_PIX_FMT_YUVA444P10:
824 case AV_PIX_FMT_YUVA422P10:
825 case AV_PIX_FMT_YUVA420P10:
826
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 13 if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
827 12 s->bits_per_raw_sample = 10;
828 case AV_PIX_FMT_GRAY12:
829 case AV_PIX_FMT_YUV444P12:
830 case AV_PIX_FMT_YUV440P12:
831 case AV_PIX_FMT_YUV420P12:
832 case AV_PIX_FMT_YUV422P12:
833 case AV_PIX_FMT_YUVA444P12:
834 case AV_PIX_FMT_YUVA422P12:
835
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 13 if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
836 ✗ s->bits_per_raw_sample = 12;
837 case AV_PIX_FMT_GRAY14:
838 case AV_PIX_FMT_YUV444P14:
839 case AV_PIX_FMT_YUV420P14:
840 case AV_PIX_FMT_YUV422P14:
841
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 13 if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
842 ✗ s->bits_per_raw_sample = 14;
843 13 s->packed_at_lsb = 1;
844 17 case AV_PIX_FMT_GRAY16:
845 case AV_PIX_FMT_P016:
846 case AV_PIX_FMT_P216:
847 case AV_PIX_FMT_P416:
848 case AV_PIX_FMT_YUV444P16:
849 case AV_PIX_FMT_YUV422P16:
850 case AV_PIX_FMT_YUV420P16:
851 case AV_PIX_FMT_YUVA444P16:
852 case AV_PIX_FMT_YUVA422P16:
853 case AV_PIX_FMT_YUVA420P16:
854 case AV_PIX_FMT_GRAYF16:
855 case AV_PIX_FMT_YAF16:
856
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 17 if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
857 4 s->bits_per_raw_sample = 16;
858
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 13 } else if (!s->bits_per_raw_sample) {
859 1 s->bits_per_raw_sample = avctx->bits_per_raw_sample;
860 }
861
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 17 if (s->bits_per_raw_sample <= 8) {
862 ✗ av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n");
863 ✗ return AVERROR_INVALIDDATA;
864 }
865 17 s->version = FFMAX(s->version, 1);
866 43 case AV_PIX_FMT_GRAY8:
867 case AV_PIX_FMT_YA8:
868 case AV_PIX_FMT_NV12:
869 case AV_PIX_FMT_NV16:
870 case AV_PIX_FMT_NV24:
871 case AV_PIX_FMT_YUV444P:
872 case AV_PIX_FMT_YUV440P:
873 case AV_PIX_FMT_YUV422P:
874 case AV_PIX_FMT_YUV420P:
875 case AV_PIX_FMT_YUV411P:
876 case AV_PIX_FMT_YUV410P:
877 case AV_PIX_FMT_YUVA444P:
878 case AV_PIX_FMT_YUVA422P:
879 case AV_PIX_FMT_YUVA420P:
880 43 s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
881 43 s->colorspace = 0;
882 43 s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
883
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 43 if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
884 26 s->bits_per_raw_sample = 8;
885
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 17 else if (!s->bits_per_raw_sample)
886 ✗ s->bits_per_raw_sample = 8;
887 43 break;
888 ✗ case AV_PIX_FMT_RGB32:
889 ✗ s->colorspace = 1;
890 ✗ s->transparency = 1;
891 ✗ s->chroma_planes = 1;
892 ✗ s->bits_per_raw_sample = 8;
893 ✗ break;
894 ✗ case AV_PIX_FMT_RGBA64:
895 ✗ s->colorspace = 1;
896 ✗ s->transparency = 1;
897 ✗ s->chroma_planes = 1;
898 ✗ s->bits_per_raw_sample = 16;
899 ✗ s->use32bit = 1;
900 ✗ s->version = FFMAX(s->version, 1);
901 ✗ break;
902 4 case AV_PIX_FMT_RGB48:
903 4 s->colorspace = 1;
904 4 s->chroma_planes = 1;
905 4 s->bits_per_raw_sample = 16;
906 4 s->use32bit = 1;
907 4 s->version = FFMAX(s->version, 1);
908 4 break;
909 4 case AV_PIX_FMT_GBRP:
910 case AV_PIX_FMT_0RGB32:
911 4 s->colorspace = 1;
912 4 s->chroma_planes = 1;
913 4 s->bits_per_raw_sample = 8;
914 4 break;
915 ✗ case AV_PIX_FMT_GBRP9:
916 ✗ if (!avctx->bits_per_raw_sample)
917 ✗ s->bits_per_raw_sample = 9;
918 case AV_PIX_FMT_X2BGR10:
919 case AV_PIX_FMT_X2RGB10:
920 case AV_PIX_FMT_GBRP10:
921 case AV_PIX_FMT_GBRAP10:
922 ✗ if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
923 ✗ s->bits_per_raw_sample = 10;
924 case AV_PIX_FMT_GBRP12:
925 case AV_PIX_FMT_GBRAP12:
926 ✗ if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
927 ✗ s->bits_per_raw_sample = 12;
928 case AV_PIX_FMT_GBRP14:
929 case AV_PIX_FMT_GBRAP14:
930 ✗ if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
931 ✗ s->bits_per_raw_sample = 14;
932 case AV_PIX_FMT_GBRP16:
933 case AV_PIX_FMT_GBRAP16:
934 case AV_PIX_FMT_GBRPF16:
935 case AV_PIX_FMT_GBRAPF16:
936 ✗ if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
937 ✗ s->bits_per_raw_sample = 16;
938 case AV_PIX_FMT_GBRPF32:
939 case AV_PIX_FMT_GBRAPF32:
940 ✗ if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
941 ✗ s->bits_per_raw_sample = 32;
942 ✗ else if (!s->bits_per_raw_sample)
943 ✗ s->bits_per_raw_sample = avctx->bits_per_raw_sample;
944 ✗ s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
945 ✗ s->colorspace = 1;
946 ✗ s->chroma_planes = 1;
947 ✗ if (s->bits_per_raw_sample >= 16) {
948 ✗ s->use32bit = 1;
949 }
950 ✗ s->version = FFMAX(s->version, 1);
951 ✗ break;
952 ✗ default:
953 ✗ av_log(avctx, AV_LOG_ERROR, "format %s not supported\n",
954 av_get_pix_fmt_name(pix_fmt));
955 ✗ return AVERROR(ENOSYS);
956 }
957 51 s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT);
958
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 51 if (s->flt || s->remap_mode > 0)
959 ✗ s->version = FFMAX(s->version, 4);
960
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 51 av_assert0(s->bits_per_raw_sample >= 8);
961
962
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 51 if (s->remap_mode < 0)
963
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 51 s->remap_mode = s->flt ? 2 : 0;
964
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 51 if (s->remap_mode == 0 && s->bits_per_raw_sample == 32) {
965 ✗ av_log(avctx, AV_LOG_ERROR, "32bit requires remap\n");
966 ✗ return AVERROR(EINVAL);
967 }
968
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 51 if (s->remap_mode == 2 &&
969 ✗ !((s->bits_per_raw_sample == 16 || s->bits_per_raw_sample == 32 || s->bits_per_raw_sample == 64) && s->flt)) {
970 ✗ av_log(avctx, AV_LOG_ERROR, "remap 2 is for float16/32/64 only\n");
971 ✗ return AVERROR(EINVAL);
972 }
973
974 51 return av_pix_fmt_get_chroma_sub_sample(pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
975 }
976
977 51 static av_cold int encode_init_internal(AVCodecContext *avctx)
978 {
979 int ret;
980 51 FFV1Context *s = avctx->priv_data;
981
982
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 51 if ((ret = ff_ffv1_common_init(avctx, s)) < 0)
983 ✗ return ret;
984
985
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 51 if (s->ac == 1) // Compatibility with common command line usage
986 ✗ s->ac = AC_RANGE_CUSTOM_TAB;
987
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 51 else if (s->ac == AC_RANGE_DEFAULT_TAB_FORCE)
988 ✗ s->ac = AC_RANGE_DEFAULT_TAB;
989
990 51 ret = ff_ffv1_encode_setup_plane_info(avctx, avctx->pix_fmt);
991
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 51 if (ret < 0)
992 ✗ return ret;
993
994
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 51 if (s->bits_per_raw_sample > (s->version > 3 ? 16 : 8) && !s->remap_mode) {
995
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 21 if (s->ac == AC_GOLOMB_RICE) {
996 13 av_log(avctx, AV_LOG_INFO,
997 "high bits_per_raw_sample, forcing range coder\n");
998 13 s->ac = AC_RANGE_CUSTOM_TAB;
999 }
1000 }
1001
1002
1003 51 ret = ff_ffv1_encode_init(avctx);
1004
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 51 if (ret < 0)
1005 ✗ return ret;
1006
1007
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 51 if (s->version > 1) {
1008
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 47 if ((ret = ff_ffv1_encode_determine_slices(avctx)) < 0)
1009 ✗ return ret;
1010
1011
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 47 if ((ret = ff_ffv1_write_extradata(avctx)) < 0)
1012 ✗ return ret;
1013 }
1014
1015
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 51 if ((ret = ff_ffv1_init_slice_contexts(s)) < 0)
1016 ✗ return ret;
1017 51 s->slice_count = s->max_slice_count;
1018
1019
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 248 for (int j = 0; j < s->slice_count; j++) {
1020 197 FFV1SliceContext *sc = &s->slices[j];
1021
1022
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 591 for (int i = 0; i < s->plane_count; i++) {
1023 394 PlaneContext *const p = &s->slices[j].plane[i];
1024
1025 394 p->quant_table_index = s->context_model;
1026 394 p->context_count = s->context_count[p->quant_table_index];
1027 }
1028
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 197 av_assert0(s->remap_mode >= 0);
1029
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 197 if (s->remap_mode) {
1030 ✗ for (int p = 0; p < 1 + 2*s->chroma_planes + s->transparency ; p++) {
1031 ✗ if (s->bits_per_raw_sample == 32) {
1032 ✗ sc->unit[p] = av_malloc_array(sc->slice_width, sc->slice_height * sizeof(**sc->unit));
1033 ✗ if (!sc->unit[p])
1034 ✗ return AVERROR(ENOMEM);
1035 ✗ sc->bitmap[p] = av_malloc_array(sc->slice_width * sc->slice_height, sizeof(*sc->bitmap[p]));
1036 ✗ if (!sc->bitmap[p])
1037 ✗ return AVERROR(ENOMEM);
1038 } else {
1039 ✗ sc->fltmap[p] = av_malloc_array(65536, sizeof(*sc->fltmap[p]));
1040 ✗ if (!sc->fltmap[p])
1041 ✗ return AVERROR(ENOMEM);
1042 }
1043 }
1044 }
1045
1046 197 ff_build_rac_states(&s->slices[j].c, 0.05 * (1LL << 32), 256 - 8);
1047
1048 197 s->slices[j].remap = s->remap_mode;
1049 }
1050
1051
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 51 if ((ret = ff_ffv1_init_slices_state(s)) < 0)
1052 ✗ return ret;
1053
1054 #define STATS_OUT_SIZE 1024 * 1024 * 6
1055
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 51 if (avctx->flags & AV_CODEC_FLAG_PASS1) {
1056 8 avctx->stats_out = av_mallocz(STATS_OUT_SIZE);
1057
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 8 if (!avctx->stats_out)
1058 ✗ return AVERROR(ENOMEM);
1059
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 24 for (int i = 0; i < s->quant_table_count; i++)
1060
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 80 for (int j = 0; j < s->max_slice_count; j++) {
1061 64 FFV1SliceContext *sc = &s->slices[j];
1062
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 64 av_assert0(!sc->rc_stat2[i]);
1063 64 sc->rc_stat2[i] = av_mallocz(s->context_count[i] *
1064 sizeof(*sc->rc_stat2[i]));
1065
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 64 if (!sc->rc_stat2[i])
1066 ✗ return AVERROR(ENOMEM);
1067 }
1068 }
1069
1070 51 return 0;
1071 }
1072
1073 8345 static void encode_slice_header(FFV1Context *f, FFV1SliceContext *sc)
1074 {
1075 8345 RangeCoder *c = &sc->c;
1076 uint8_t state[CONTEXT_SIZE];
1077 int j;
1078 8345 memset(state, 128, sizeof(state));
1079
1080 8345 put_symbol(c, state, sc->sx, 0);
1081 8345 put_symbol(c, state, sc->sy, 0);
1082 8345 put_symbol(c, state, 0, 0);
1083 8345 put_symbol(c, state, 0, 0);
1084
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 25035 for (j=0; j<f->plane_count; j++) {
1085 16690 put_symbol(c, state, sc->plane[j].quant_table_index, 0);
1086
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 16690 av_assert0(sc->plane[j].quant_table_index == f->context_model);
1087 }
1088
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 8345 if (!(f->cur_enc_frame->flags & AV_FRAME_FLAG_INTERLACED))
1089 8345 put_symbol(c, state, 3, 0);
1090 else
1091 ✗ put_symbol(c, state, 1 + !(f->cur_enc_frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST), 0);
1092 8345 put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.num, 0);
1093 8345 put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.den, 0);
1094
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 8345 if (f->version > 3) {
1095 ✗ put_rac(c, state, sc->slice_coding_mode == 1);
1096 ✗ if (sc->slice_coding_mode == 1)
1097 ✗ ff_ffv1_clear_slice_state(f, sc);
1098 ✗ put_symbol(c, state, sc->slice_coding_mode, 0);
1099 ✗ if (sc->slice_coding_mode != 1 && f->colorspace == 1) {
1100 ✗ put_symbol(c, state, sc->slice_rct_by_coef, 0);
1101 ✗ put_symbol(c, state, sc->slice_rct_ry_coef, 0);
1102 }
1103 ✗ put_symbol(c, state, sc->remap, 0);
1104 }
1105 8345 }
1106
1107 ✗ static void choose_rct_params(const FFV1Context *f, FFV1SliceContext *sc,
1108 const uint8_t *src[3], const int stride[3], int w, int h)
1109 {
1110 #define NB_Y_COEFF 15
1111 static const int rct_y_coeff[15][2] = {
1112 {0, 0}, // 4G
1113 {1, 1}, // R + 2G + B
1114 {2, 2}, // 2R + 2B
1115 {0, 2}, // 2G + 2B
1116 {2, 0}, // 2R + 2G
1117 {4, 0}, // 4R
1118 {0, 4}, // 4B
1119
1120 {0, 3}, // 1G + 3B
1121 {3, 0}, // 3R + 1G
1122 {3, 1}, // 3R + B
1123 {1, 3}, // R + 3B
1124 {1, 2}, // R + G + 2B
1125 {2, 1}, // 2R + G + B
1126 {0, 1}, // 3G + B
1127 {1, 0}, // R + 3G
1128 };
1129
1130 ✗ int stat[NB_Y_COEFF] = {0};
1131 int x, y, i, p, best;
1132 int16_t *sample[3];
1133 ✗ int lbd = f->bits_per_raw_sample <= 8;
1134 ✗ int packed = !src[1];
1135 ✗ int transparency = f->transparency;
1136 ✗ int packed_size = (3 + transparency)*2;
1137
1138 ✗ for (y = 0; y < h; y++) {
1139 ✗ int lastr=0, lastg=0, lastb=0;
1140 ✗ for (p = 0; p < 3; p++)
1141 ✗ sample[p] = sc->sample_buffer + p*w;
1142
1143 ✗ for (x = 0; x < w; x++) {
1144 int b, g, r;
1145 int ab, ag, ar;
1146 ✗ if (lbd) {
1147 ✗ unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
1148 ✗ b = v & 0xFF;
1149 ✗ g = (v >> 8) & 0xFF;
1150 ✗ r = (v >> 16) & 0xFF;
1151 ✗ } else if (packed) {
1152 ✗ const uint16_t *p = ((const uint16_t*)(src[0] + x*packed_size + stride[0]*y));
1153 ✗ r = p[0];
1154 ✗ g = p[1];
1155 ✗ b = p[2];
1156 ✗ } else if (f->use32bit || transparency) {
1157 ✗ g = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
1158 ✗ b = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
1159 ✗ r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
1160 } else {
1161 ✗ b = *((const uint16_t*)(src[0] + x*2 + stride[0]*y));
1162 ✗ g = *((const uint16_t*)(src[1] + x*2 + stride[1]*y));
1163 ✗ r = *((const uint16_t*)(src[2] + x*2 + stride[2]*y));
1164 }
1165
1166 ✗ ar = r - lastr;
1167 ✗ ag = g - lastg;
1168 ✗ ab = b - lastb;
1169 ✗ if (x && y) {
1170 ✗ int bg = ag - sample[0][x];
1171 ✗ int bb = ab - sample[1][x];
1172 ✗ int br = ar - sample[2][x];
1173
1174 ✗ br -= bg;
1175 ✗ bb -= bg;
1176
1177 ✗ for (i = 0; i<NB_Y_COEFF; i++) {
1178 ✗ stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2));
1179 }
1180
1181 }
1182 ✗ sample[0][x] = ag;
1183 ✗ sample[1][x] = ab;
1184 ✗ sample[2][x] = ar;
1185
1186 ✗ lastr = r;
1187 ✗ lastg = g;
1188 ✗ lastb = b;
1189 }
1190 }
1191
1192 ✗ best = 0;
1193 ✗ for (i=1; i<NB_Y_COEFF; i++) {
1194 ✗ if (stat[i] < stat[best])
1195 ✗ best = i;
1196 }
1197
1198 ✗ sc->slice_rct_by_coef = rct_y_coeff[best][1];
1199 ✗ sc->slice_rct_ry_coef = rct_y_coeff[best][0];
1200 ✗ }
1201
1202 ✗ static void encode_histogram_remap(FFV1Context *f, FFV1SliceContext *sc)
1203 {
1204 ✗ int len = 1 << f->bits_per_raw_sample;
1205 ✗ int flip = sc->remap == 2 ? 0x7FFF : 0;
1206
1207 ✗ for (int p= 0; p < 1 + 2*f->chroma_planes + f->transparency; p++) {
1208 ✗ int j = 0;
1209 ✗ int lu = 0;
1210 uint8_t state[2][32];
1211 ✗ int run = 0;
1212
1213 ✗ memset(state, 128, sizeof(state));
1214 ✗ put_symbol(&sc->c, state[0], 0, 0);
1215 ✗ memset(state, 128, sizeof(state));
1216 ✗ for (int i= 0; i<len; i++) {
1217 ✗ int ri = i ^ ((i&0x8000) ? 0 : flip);
1218 ✗ int u = sc->fltmap[p][ri];
1219 ✗ sc->fltmap[p][ri] = j;
1220 ✗ j+= u;
1221
1222 ✗ if (lu == u) {
1223 ✗ run ++;
1224 } else {
1225 ✗ put_symbol_inline(&sc->c, state[lu], run, 0, NULL, NULL);
1226 ✗ if (run == 0)
1227 ✗ lu = u;
1228 ✗ run = 0;
1229 }
1230 }
1231 ✗ if (run)
1232 ✗ put_symbol(&sc->c, state[lu], run, 0);
1233 ✗ sc->remap_count[p] = j;
1234 }
1235 ✗ }
1236
1237 ✗ static void load_rgb_float32_frame(FFV1Context *f, FFV1SliceContext *sc,
1238 const uint8_t *src[4],
1239 int w, int h, const int stride[4])
1240 {
1241 int x, y;
1242 ✗ int transparency = f->transparency;
1243 ✗ int i = 0;
1244
1245 ✗ for (y = 0; y < h; y++) {
1246 ✗ for (x = 0; x < w; x++) {
1247 ✗ int b, g, r, av_uninit(a);
1248
1249 ✗ g = *((const uint32_t *)(src[0] + x*4 + stride[0]*y));
1250 ✗ b = *((const uint32_t *)(src[1] + x*4 + stride[1]*y));
1251 ✗ r = *((const uint32_t *)(src[2] + x*4 + stride[2]*y));
1252 ✗ if (transparency)
1253 ✗ a = *((const uint32_t *)(src[3] + x*4 + stride[3]*y));
1254
1255 ✗ if (sc->remap == 2) {
1256 #define FLIP(f) (((f)&0x80000000) ? (f) : (f)^0x7FFFFFFF);
1257 ✗ g = FLIP(g);
1258 ✗ b = FLIP(b);
1259 ✗ r = FLIP(r);
1260 }
1261 // We cannot build a histogram as we do for 16bit, we need a bit of magic here
1262 // Its possible to reduce the memory needed at the cost of more dereferencing
1263 ✗ sc->unit[0][i].val = g;
1264 ✗ sc->unit[0][i].ndx = x + y*w;
1265
1266 ✗ sc->unit[1][i].val = b;
1267 ✗ sc->unit[1][i].ndx = x + y*w;
1268
1269 ✗ sc->unit[2][i].val = r;
1270 ✗ sc->unit[2][i].ndx = x + y*w;
1271
1272 ✗ if (transparency) {
1273 ✗ sc->unit[3][i].val = a;
1274 ✗ sc->unit[3][i].ndx = x + y*w;
1275 }
1276 ✗ i++;
1277 }
1278 }
1279
1280 //TODO switch to radix sort
1281 #define CMP(A,B) ((A)->val - (int64_t)(B)->val)
1282 ✗ AV_QSORT(sc->unit[0], i, struct Unit, CMP);
1283 ✗ AV_QSORT(sc->unit[1], i, struct Unit, CMP);
1284 ✗ AV_QSORT(sc->unit[2], i, struct Unit, CMP);
1285 ✗ if (transparency)
1286 ✗ AV_QSORT(sc->unit[3], i, struct Unit, CMP);
1287 ✗ }
1288
1289 ✗ static int encode_float32_remap_segment(FFV1SliceContext *sc,
1290 int p, int mul_count, int *mul_tab, int update, int final)
1291 {
1292 ✗ const int pixel_num = sc->slice_width * sc->slice_height;
1293 uint8_t state[2][3][32];
1294 int mul[4096+1];
1295 ✗ RangeCoder rc = sc->c;
1296 ✗ int lu = 0;
1297 ✗ int run = 0;
1298 ✗ int64_t last_val = -1;
1299 ✗ int compact_index = -1;
1300 ✗ int i = 0;
1301 ✗ int current_mul_index = -1;
1302 ✗ int run1final = 0;
1303 int run1start_i;
1304 int run1start_last_val;
1305 int run1start_mul_index;
1306
1307 ✗ memcpy(mul, mul_tab, sizeof(*mul_tab)*(mul_count+1));
1308 ✗ memset(state, 128, sizeof(state));
1309 ✗ put_symbol(&rc, state[0][0], mul_count, 0);
1310 ✗ memset(state, 128, sizeof(state));
1311
1312 ✗ for (; i < pixel_num+1; i++) {
1313 ✗ int current_mul = current_mul_index < 0 ? 1 : FFABS(mul[current_mul_index]);
1314 int64_t val;
1315 ✗ if (i == pixel_num) {
1316 ✗ if (last_val == 0xFFFFFFFF && (!run || run1final)) {
1317 break;
1318 } else {
1319 ✗ val = last_val + ((1LL<<32) - last_val + current_mul - 1) / current_mul * current_mul;
1320 av_assert2(val >= (1LL<<32));
1321 ✗ val += lu * current_mul; //ensure a run1 ends
1322 }
1323 } else
1324 ✗ val = sc->unit[p][i].val;
1325
1326 ✗ if (last_val != val) {
1327 ✗ int64_t delta = val - last_val;
1328 ✗ int64_t step = FFMAX(1, (delta + current_mul/2) / current_mul);
1329 av_assert2(last_val < val);
1330 av_assert2(current_mul > 0);
1331
1332 ✗ delta -= step*current_mul;
1333 av_assert2(delta <= current_mul/2);
1334 av_assert2(delta > -current_mul);
1335
1336 av_assert2(step > 0);
1337 ✗ if (lu) {
1338 ✗ if (!run) {
1339 ✗ run1start_i = i - 1;
1340 ✗ run1start_last_val = last_val;
1341 ✗ run1start_mul_index= current_mul_index;
1342 }
1343 ✗ if (step == 1) {
1344 ✗ if (run1final) {
1345 ✗ if (current_mul>1)
1346 ✗ put_symbol_inline(&rc, state[lu][1], delta, 1, NULL, NULL);
1347 }
1348 ✗ run ++;
1349 av_assert2(last_val + current_mul + delta == val);
1350 } else {
1351 ✗ if (run1final) {
1352 ✗ if (run == 0)
1353 ✗ lu ^= 1;
1354 ✗ i--; // we did not encode val so we need to backstep
1355 ✗ last_val += current_mul;
1356 } else {
1357 ✗ put_symbol_inline(&rc, state[lu][0], run, 0, NULL, NULL);
1358 ✗ i = run1start_i;
1359 ✗ last_val = run1start_last_val; // we could compute this instead of storing
1360 ✗ current_mul_index = run1start_mul_index;
1361 }
1362 ✗ run1final ^= 1;
1363
1364 ✗ run = 0;
1365 ✗ continue;
1366 }
1367 } else {
1368 av_assert2(run == 0);
1369 av_assert2(run1final == 0);
1370 ✗ put_symbol_inline(&rc, state[lu][0], step - 1, 0, NULL, NULL);
1371
1372 ✗ if (current_mul > 1)
1373 ✗ put_symbol_inline(&rc, state[lu][1], delta, 1, NULL, NULL);
1374 ✗ if (step == 1)
1375 ✗ lu ^= 1;
1376
1377 av_assert2(last_val + step * current_mul + delta == val);
1378 }
1379 ✗ last_val = val;
1380 ✗ current_mul_index = ((last_val + 1) * mul_count) >> 32;
1381 ✗ if (!run || run1final) {
1382 av_assert2(mul[ current_mul_index ]);
1383 ✗ if (mul[ current_mul_index ] < 0) {
1384 av_assert2(i < pixel_num);
1385 ✗ mul[ current_mul_index ] *= -1;
1386 ✗ put_symbol_inline(&rc, state[0][2], mul[ current_mul_index ], 0, NULL, NULL);
1387 }
1388 ✗ if (i < pixel_num)
1389 ✗ compact_index ++;
1390 }
1391 }
1392 ✗ if (!run || run1final)
1393 ✗ if (final && i < pixel_num)
1394 ✗ sc->bitmap[p][sc->unit[p][i].ndx] = compact_index;
1395 }
1396
1397 ✗ if (update) {
1398 ✗ sc->c = rc;
1399 ✗ sc->remap_count[p] = compact_index + 1;
1400 }
1401 ✗ return get_rac_count(&rc);
1402 }
1403
1404 ✗ static void encode_float32_remap(FFV1Context *f, FFV1SliceContext *sc,
1405 const uint8_t *src[4])
1406 {
1407 ✗ int pixel_num = sc->slice_width * sc->slice_height;
1408 ✗ const int max_log2_mul_count = ((int[]){ 1, 1, 1, 9, 9, 10})[f->remap_optimizer];
1409 ✗ const int log2_mul_count_step = ((int[]){ 1, 1, 1, 9, 9, 1})[f->remap_optimizer];
1410 ✗ const int max_log2_mul = ((int[]){ 1, 8, 8, 9, 22, 22})[f->remap_optimizer];
1411 ✗ const int log2_mul_step = ((int[]){ 1, 8, 1, 1, 1, 1})[f->remap_optimizer];
1412 ✗ const int bruteforce_count = ((int[]){ 0, 0, 0, 1, 1, 1})[f->remap_optimizer];
1413 ✗ const int stair_mode = ((int[]){ 0, 0, 0, 1, 0, 0})[f->remap_optimizer];
1414 ✗ const int magic_log2 = ((int[]){ 1, 1, 1, 1, 0, 0})[f->remap_optimizer];
1415
1416 ✗ for (int p= 0; p < 1 + 2*f->chroma_planes + f->transparency; p++) {
1417 ✗ int best_log2_mul_count = 0;
1418 ✗ float score_sum[11] = {0};
1419 int mul_all[11][1025];
1420
1421 ✗ for (int log2_mul_count= 0; log2_mul_count <= max_log2_mul_count; log2_mul_count += log2_mul_count_step) {
1422 ✗ float score_tab_all[1025][23] = {0};
1423 ✗ int64_t last_val = -1;
1424 ✗ int *mul_tab = mul_all[log2_mul_count];
1425 ✗ int last_mul_index = -1;
1426 ✗ int mul_count = 1 << log2_mul_count;
1427
1428 ✗ score_sum[log2_mul_count] = 2 * log2_mul_count;
1429 ✗ if (magic_log2)
1430 ✗ score_sum[log2_mul_count] = av_float2int((float)mul_count * mul_count);
1431 ✗ for (int i= 0; i<pixel_num; i++) {
1432 ✗ int64_t val = sc->unit[p][i].val;
1433 ✗ int mul_index = (val + 1LL)*mul_count >> 32;
1434 ✗ if (val != last_val) {
1435 ✗ float *score_tab = score_tab_all[(last_val + 1LL)*mul_count >> 32];
1436 av_assert2(last_val < val);
1437 ✗ for(int si= 0; si <= max_log2_mul; si += log2_mul_step) {
1438 ✗ int64_t delta = val - last_val;
1439 int mul;
1440 int64_t cost;
1441
1442 ✗ if (last_val < 0) {
1443 ✗ mul = 1;
1444 ✗ } else if (stair_mode && mul_count == 512 && si == max_log2_mul ) {
1445 ✗ if (mul_index >= 0x378/8 && mul_index <= 23 + 0x378/8) {
1446 ✗ mul = (0x800080 >> (mul_index - 0x378/8));
1447 } else
1448 ✗ mul = 1;
1449 } else {
1450 ✗ mul = (0x10001LL)<<si >> 16;
1451 }
1452
1453 ✗ cost = FFMAX((delta + mul/2) / mul, 1);
1454 ✗ float score = 1;
1455 ✗ if (mul > 1) {
1456 ✗ score *= (FFABS(delta - cost*mul)+1);
1457 ✗ if (mul_count > 1)
1458 ✗ score *= score;
1459 }
1460 ✗ score *= cost;
1461 ✗ score *= score;
1462 ✗ if (mul_index != last_mul_index)
1463 ✗ score *= mul;
1464 ✗ if (magic_log2) {
1465 ✗ score_tab[si] += av_float2int(score);
1466 } else
1467 ✗ score_tab[si] += log2f(score);
1468 }
1469 }
1470 ✗ last_val = val;
1471 ✗ last_mul_index = mul_index;
1472 }
1473 ✗ for(int i= 0; i<mul_count; i++) {
1474 ✗ int best_index = 0;
1475 ✗ float *score_tab = score_tab_all[i];
1476 ✗ for(int si= 0; si <= max_log2_mul; si += log2_mul_step) {
1477 ✗ if (score_tab[si] < score_tab[ best_index ])
1478 ✗ best_index = si;
1479 }
1480 ✗ if (stair_mode && mul_count == 512 && best_index == max_log2_mul ) {
1481 ✗ if (i >= 0x378/8 && i <= 23 + 0x378/8) {
1482 ✗ mul_tab[i] = -(0x800080 >> (i - 0x378/8));
1483 } else
1484 ✗ mul_tab[i] = -1;
1485 } else
1486 ✗ mul_tab[i] = -((0x10001LL)<<best_index >> 16);
1487 ✗ score_sum[log2_mul_count] += score_tab[ best_index ];
1488 }
1489 ✗ mul_tab[mul_count] = 1;
1490
1491 ✗ if (bruteforce_count)
1492 ✗ score_sum[log2_mul_count] = encode_float32_remap_segment(sc, p, mul_count, mul_all[log2_mul_count], 0, 0);
1493
1494 ✗ if (score_sum[log2_mul_count] < score_sum[best_log2_mul_count])
1495 ✗ best_log2_mul_count = log2_mul_count;
1496 }
1497
1498 ✗ encode_float32_remap_segment(sc, p, 1<<best_log2_mul_count, mul_all[best_log2_mul_count], 1, 1);
1499 }
1500 ✗ }
1501
1502 ✗ static int encode_float32_rgb_frame(FFV1Context *f, FFV1SliceContext *sc,
1503 const uint8_t *src[4],
1504 int w, int h, const int stride[4], int ac)
1505 {
1506 int x, y, p, i;
1507 ✗ const int ring_size = f->context_model ? 3 : 2;
1508 int32_t *sample[4][3];
1509 ✗ const int pass1 = !!(f->avctx->flags & AV_CODEC_FLAG_PASS1);
1510 int bits[4], offset;
1511 ✗ int transparency = f->transparency;
1512
1513 ✗ ff_ffv1_compute_bits_per_plane(f, sc, bits, &offset, NULL, f->bits_per_raw_sample);
1514
1515 ✗ sc->run_index = 0;
1516
1517 ✗ for (int p = 0; p < MAX_PLANES; ++p)
1518 ✗ sample[p][2] = sc->sample_buffer32; // dummy to avoid UB pointer arithmetic
1519
1520 ✗ memset(RENAME(sc->sample_buffer), 0, ring_size * MAX_PLANES *
1521 ✗ (w + 6) * sizeof(*RENAME(sc->sample_buffer)));
1522
1523 ✗ for (y = 0; y < h; y++) {
1524 ✗ for (i = 0; i < ring_size; i++)
1525 ✗ for (p = 0; p < MAX_PLANES; p++)
1526 ✗ sample[p][i]= RENAME(sc->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
1527
1528 ✗ for (x = 0; x < w; x++) {
1529 ✗ int b, g, r, av_uninit(a);
1530 ✗ g = sc->bitmap[0][x + w*y];
1531 ✗ b = sc->bitmap[1][x + w*y];
1532 ✗ r = sc->bitmap[2][x + w*y];
1533 ✗ if (transparency)
1534 ✗ a = sc->bitmap[3][x + w*y];
1535
1536 ✗ if (sc->slice_coding_mode != 1) {
1537 ✗ b -= g;
1538 ✗ r -= g;
1539 ✗ g += (b * sc->slice_rct_by_coef + r * sc->slice_rct_ry_coef) >> 2;
1540 ✗ b += offset;
1541 ✗ r += offset;
1542 }
1543
1544 ✗ sample[0][0][x] = g;
1545 ✗ sample[1][0][x] = b;
1546 ✗ sample[2][0][x] = r;
1547 ✗ sample[3][0][x] = a;
1548 }
1549 ✗ for (p = 0; p < 3 + transparency; p++) {
1550 int ret;
1551 ✗ sample[p][0][-1] = sample[p][1][0 ];
1552 ✗ sample[p][1][ w] = sample[p][1][w-1];
1553 ✗ ret = encode_line32(f, sc, f->avctx, w, sample[p], (p + 1) / 2,
1554 bits[p], ac, pass1);
1555 ✗ if (ret < 0)
1556 ✗ return ret;
1557 }
1558 }
1559 ✗ return 0;
1560 }
1561
1562
1563 9345 static int encode_slice(AVCodecContext *c, void *arg)
1564 {
1565 9345 FFV1SliceContext *sc = arg;
1566 9345 FFV1Context *f = c->priv_data;
1567 9345 int width = sc->slice_width;
1568 9345 int height = sc->slice_height;
1569 9345 int x = sc->slice_x;
1570 9345 int y = sc->slice_y;
1571 9345 const AVFrame *const p = f->cur_enc_frame;
1572 9345 const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step;
1573 int ret;
1574 9345 RangeCoder c_bak = sc->c;
1575 9345 const int chroma_width = AV_CEIL_RSHIFT(width, f->chroma_h_shift);
1576 9345 const int chroma_height = AV_CEIL_RSHIFT(height, f->chroma_v_shift);
1577 37380 const uint8_t *planes[4] = {p->data[0] + ps*x + y*p->linesize[0],
1578
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 9345 p->data[1] ? p->data[1] + ps*x + y*p->linesize[1] : NULL,
1579
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 9345 p->data[2] ? p->data[2] + ps*x + y*p->linesize[2] : NULL,
1580
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 9345 p->data[3] ? p->data[3] + ps*x + y*p->linesize[3] : NULL};
1581 9345 int ac = f->ac;
1582
1583 9345 sc->slice_coding_mode = 0;
1584
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 9345 if (f->version > 3 && f->colorspace == 1) {
1585 ✗ choose_rct_params(f, sc, planes, p->linesize, width, height);
1586 } else {
1587 9345 sc->slice_rct_by_coef = 1;
1588 9345 sc->slice_rct_ry_coef = 1;
1589 }
1590
1591 9345 retry:
1592
2/2
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 9345 if (f->key_frame)
1593 941 ff_ffv1_clear_slice_state(f, sc);
1594
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 9345 if (f->version > 2) {
1595 8345 encode_slice_header(f, sc);
1596 }
1597
1598
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 9345 if (sc->remap) {
1599 //Both the 16bit and 32bit remap do exactly the same thing but with 16bits we can
1600 //Implement this using a "histogram" while for 32bit that would be gb sized, thus a more
1601 //complex implementation sorting pairs is used.
1602 ✗ if (f->bits_per_raw_sample != 32) {
1603 ✗ if (f->colorspace == 0 && c->pix_fmt != AV_PIX_FMT_YA8 && c->pix_fmt != AV_PIX_FMT_YAF16) {
1604 ✗ const int cx = x >> f->chroma_h_shift;
1605 ✗ const int cy = y >> f->chroma_v_shift;
1606
1607 //TODO decide on the order for the encoded remaps and loads. with golomb rice it
1608 // easier to have all range coded ones together, otherwise it may be nicer to handle each plane as a whole?
1609
1610 ✗ load_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 1);
1611
1612 ✗ if (f->chroma_planes) {
1613 ✗ load_plane(f, sc, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1, 1);
1614 ✗ load_plane(f, sc, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 2, 1);
1615 }
1616 ✗ if (f->transparency)
1617 ✗ load_plane(f, sc, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 3, 1);
1618 ✗ } else if (c->pix_fmt == AV_PIX_FMT_YA8 || c->pix_fmt == AV_PIX_FMT_YAF16) {
1619 ✗ load_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 2);
1620 ✗ load_plane(f, sc, p->data[0] + (ps>>1) + ps*x + y*p->linesize[0], width, height, p->linesize[0], 1, 2);
1621 ✗ } else if (f->use32bit) {
1622 ✗ load_rgb_frame32(f, sc, planes, width, height, p->linesize);
1623 } else
1624 ✗ load_rgb_frame (f, sc, planes, width, height, p->linesize);
1625
1626 ✗ encode_histogram_remap(f, sc);
1627 } else {
1628 ✗ load_rgb_float32_frame(f, sc, planes, width, height, p->linesize);
1629 ✗ encode_float32_remap(f, sc, planes);
1630 }
1631 }
1632
1633
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 9345 if (ac == AC_GOLOMB_RICE) {
1634
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 3700 sc->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&sc->c, f->version > 2) : 0;
1635 3700 init_put_bits(&sc->pb,
1636 3700 sc->c.bytestream_start + sc->ac_byte_count,
1637 3700 sc->c.bytestream_end - sc->c.bytestream_start - sc->ac_byte_count);
1638 }
1639
1640
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 17090 if (f->colorspace == 0 && c->pix_fmt != AV_PIX_FMT_YA8 && c->pix_fmt != AV_PIX_FMT_YAF16) {
1641 7745 const int cx = x >> f->chroma_h_shift;
1642 7745 const int cy = y >> f->chroma_v_shift;
1643
1644 7745 ret = encode_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 0, 1, ac);
1645
1646
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 7745 if (f->chroma_planes) {
1647 7745 ret |= encode_plane(f, sc, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1, 1, 1, ac);
1648 7745 ret |= encode_plane(f, sc, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1, 2, 1, ac);
1649 }
1650
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 7745 if (f->transparency)
1651 ✗ ret |= encode_plane(f, sc, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2, 3, 1, ac);
1652
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 1600 } else if (c->pix_fmt == AV_PIX_FMT_YA8 || c->pix_fmt == AV_PIX_FMT_YAF16) {
1653 ✗ ret = encode_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 0, 2, ac);
1654 ✗ ret |= encode_plane(f, sc, p->data[0] + (ps>>1) + ps*x + y*p->linesize[0], width, height, p->linesize[0], 1, 1, 2, ac);
1655
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 1600 } else if (f->bits_per_raw_sample == 32) {
1656 ✗ ret = encode_float32_rgb_frame(f, sc, planes, width, height, p->linesize, ac);
1657
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 1600 } else if (f->use32bit) {
1658 800 ret = encode_rgb_frame32(f, sc, planes, width, height, p->linesize, ac);
1659 } else {
1660 800 ret = encode_rgb_frame(f, sc, planes, width, height, p->linesize, ac);
1661 }
1662
1663
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 9345 if (ac != AC_GOLOMB_RICE) {
1664 5645 sc->ac_byte_count = ff_rac_terminate(&sc->c, 1);
1665 } else {
1666 3700 flush_put_bits(&sc->pb); // FIXME: nicer padding
1667 3700 sc->ac_byte_count += put_bytes_output(&sc->pb);
1668 }
1669
1670
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 9345 if (ret < 0) {
1671 ✗ av_assert0(sc->slice_coding_mode == 0);
1672 ✗ if (f->version < 4) {
1673 ✗ av_log(c, AV_LOG_ERROR, "Buffer too small\n");
1674 ✗ return ret;
1675 }
1676 ✗ av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n");
1677 ✗ ac = 1;
1678 ✗ sc->slice_coding_mode = 1;
1679 ✗ sc->c = c_bak;
1680 ✗ goto retry;
1681 }
1682
1683 9345 return 0;
1684 }
1685
1686 2480 size_t ff_ffv1_encode_buffer_size(AVCodecContext *avctx)
1687 {
1688 2480 FFV1Context *f = avctx->priv_data;
1689
1690 2480 int w = avctx->width + f->num_h_slices;
1691 2480 int h = avctx->height + f->num_v_slices;
1692 2480 size_t maxsize = w*h * (1 + f->transparency);
1693
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 2480 if (f->chroma_planes)
1694 2480 maxsize += AV_CEIL_RSHIFT(w, f->chroma_h_shift) * AV_CEIL_RSHIFT(h, f->chroma_v_shift) * 2;
1695 2480 maxsize += f->slice_count * 800; //for slice header
1696
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 2480 if (f->version > 3) {
1697 ✗ maxsize *= f->bits_per_raw_sample + 1;
1698 ✗ if (f->remap_mode)
1699 ✗ maxsize += f->slice_count * 70000 * (1 + 2*f->chroma_planes + f->transparency);
1700 } else {
1701 2480 maxsize += f->slice_count * 2 * (avctx->width + avctx->height); //for bug with slices that code some pixels more than once
1702 2480 maxsize *= 8*(2*f->bits_per_raw_sample + 5);
1703 }
1704 2480 maxsize >>= 3;
1705 2480 maxsize += FF_INPUT_BUFFER_MIN_SIZE;
1706
1707 2480 return maxsize;
1708 }
1709
1710 2531 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1711 const AVFrame *pict, int *got_packet)
1712 {
1713 2531 FFV1Context *f = avctx->priv_data;
1714 2531 RangeCoder *const c = &f->slices[0].c;
1715 2531 uint8_t keystate = 128;
1716 uint8_t *buf_p;
1717 int i, ret;
1718 int64_t maxsize;
1719
1720
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 2531 if(!pict) {
1721
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 51 if (avctx->flags & AV_CODEC_FLAG_PASS1) {
1722 int j, k, m;
1723 8 char *p = avctx->stats_out;
1724 8 char *end = p + STATS_OUT_SIZE;
1725
1726 8 memset(f->rc_stat, 0, sizeof(f->rc_stat));
1727
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 24 for (i = 0; i < f->quant_table_count; i++)
1728 16 memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));
1729
1730
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 8 av_assert0(f->slice_count == f->max_slice_count);
1731
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 40 for (j = 0; j < f->slice_count; j++) {
1732 32 const FFV1SliceContext *sc = &f->slices[j];
1733
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 8224 for (i = 0; i < 256; i++) {
1734 8192 f->rc_stat[i][0] += sc->rc_stat[i][0];
1735 8192 f->rc_stat[i][1] += sc->rc_stat[i][1];
1736 }
1737
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 96 for (i = 0; i < f->quant_table_count; i++) {
1738
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 218576 for (k = 0; k < f->context_count[i]; k++)
1739
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 7210896 for (m = 0; m < 32; m++) {
1740 6992384 f->rc_stat2[i][k][m][0] += sc->rc_stat2[i][k][m][0];
1741 6992384 f->rc_stat2[i][k][m][1] += sc->rc_stat2[i][k][m][1];
1742 }
1743 }
1744 }
1745
1746
2/2
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 2056 for (j = 0; j < 256; j++) {
1747 2048 snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1748 f->rc_stat[j][0], f->rc_stat[j][1]);
1749 2048 p += strlen(p);
1750 }
1751 8 snprintf(p, end - p, "\n");
1752
1753
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 24 for (i = 0; i < f->quant_table_count; i++) {
1754
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 54644 for (j = 0; j < f->context_count[i]; j++)
1755
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 1802724 for (m = 0; m < 32; m++) {
1756 1748096 snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1757 1748096 f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
1758 1748096 p += strlen(p);
1759 }
1760 }
1761 8 snprintf(p, end - p, "%d\n", f->gob_count);
1762 }
1763 51 return 0;
1764 }
1765
1766 /* Maximum packet size */
1767 2480 maxsize = ff_ffv1_encode_buffer_size(avctx);
1768
1769
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 2480 if (maxsize > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32) {
1770 ✗ FFV1Context *f = avctx->priv_data;
1771 ✗ if (!f->maxsize_warned) {
1772 ✗ av_log(avctx, AV_LOG_WARNING, "Cannot allocate worst case packet size, the encoding could fail\n");
1773 ✗ f->maxsize_warned++;
1774 }
1775 ✗ maxsize = INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32;
1776 }
1777
1778
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 2480 if ((ret = ff_alloc_packet(avctx, pkt, maxsize)) < 0)
1779 ✗ return ret;
1780
1781 2480 ff_init_range_encoder(c, pkt->data, pkt->size);
1782 2480 ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
1783
1784 2480 f->cur_enc_frame = pict;
1785
1786
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 2480 if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
1787 249 put_rac(c, &keystate, 1);
1788 249 f->key_frame = 1;
1789 249 f->gob_count++;
1790 249 write_header(f);
1791 } else {
1792 2231 put_rac(c, &keystate, 0);
1793 2231 f->key_frame = 0;
1794 }
1795
1796
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 2480 if (f->ac == AC_RANGE_CUSTOM_TAB) {
1797 int i;
1798
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 359680 for (i = 1; i < 256; i++) {
1799 358275 c->one_state[i] = f->state_transition[i];
1800 358275 c->zero_state[256 - i] = 256 - c->one_state[i];
1801 }
1802 }
1803
1804
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 11825 for (i = 0; i < f->slice_count; i++) {
1805 9345 FFV1SliceContext *sc = &f->slices[i];
1806 9345 uint8_t *start = pkt->data + pkt->size * (int64_t)i / f->slice_count;
1807 9345 int len = pkt->size / f->slice_count;
1808
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 9345 if (i) {
1809 6865 ff_init_range_encoder(&sc->c, start, len);
1810 } else {
1811
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 2480 av_assert0(sc->c.bytestream_end >= sc->c.bytestream_start + len);
1812
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 2480 av_assert0(sc->c.bytestream < sc->c.bytestream_start + len);
1813 2480 sc->c.bytestream_end = sc->c.bytestream_start + len;
1814 }
1815 }
1816 2480 avctx->execute(avctx, encode_slice, f->slices, NULL,
1817 f->slice_count, sizeof(*f->slices));
1818
1819 2480 buf_p = pkt->data;
1820
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 11825 for (i = 0; i < f->slice_count; i++) {
1821 9345 FFV1SliceContext *sc = &f->slices[i];
1822 9345 int bytes = sc->ac_byte_count;
1823
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 9345 if (i > 0 || f->version > 2) {
1824
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 8945 av_assert0(bytes < pkt->size / f->slice_count);
1825 8945 memmove(buf_p, sc->c.bytestream_start, bytes);
1826
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 8945 av_assert0(bytes < (1 << 24));
1827 8945 AV_WB24(buf_p + bytes, bytes);
1828 8945 bytes += 3;
1829 }
1830
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 9345 if (f->ec) {
1831 unsigned v;
1832 8345 buf_p[bytes++] = 0;
1833
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 8345 v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), f->crcref, buf_p, bytes) ^ (f->crcref ? 0x8CD88196 : 0);
1834 8345 AV_WL32(buf_p + bytes, v);
1835 8345 bytes += 4;
1836 }
1837 9345 buf_p += bytes;
1838 }
1839
1840
2/2
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 2480 if (avctx->flags & AV_CODEC_FLAG_PASS1)
1841 400 avctx->stats_out[0] = '\0';
1842
1843 2480 f->picture_number++;
1844 2480 pkt->size = buf_p - pkt->data;
1845 2480 pkt->flags |= AV_PKT_FLAG_KEY * f->key_frame;
1846 2480 *got_packet = 1;
1847
1848 2480 return 0;
1849 }
1850
1851 51 static av_cold int encode_close(AVCodecContext *avctx)
1852 {
1853 51 FFV1Context *const s = avctx->priv_data;
1854
1855
2/2
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✓ Branch 1 taken 51 times.
 248 for (int j = 0; j < s->max_slice_count; j++) {
1856 197 FFV1SliceContext *sc = &s->slices[j];
1857
1858
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✓ Branch 1 taken 197 times.
 985 for(int p = 0; p<4; p++) {
1859 788 av_freep(&sc->unit[p]);
1860 788 av_freep(&sc->bitmap[p]);
1861 }
1862 }
1863
1864 51 av_freep(&avctx->stats_out);
1865 51 ff_ffv1_close(s);
1866
1867 51 return 0;
1868 }
1869
1870 #define OFFSET(x) offsetof(FFV1Context, x)
1871 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1872 static const AVOption options[] = {
1873 { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
1874 { "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT,
1875 { .i64 = 0 }, -2, 2, VE, .unit = "coder" },
1876 { "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST,
1877 { .i64 = AC_GOLOMB_RICE }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1878 { "range_def", "Range with default table", 0, AV_OPT_TYPE_CONST,
1879 { .i64 = AC_RANGE_DEFAULT_TAB_FORCE }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1880 { "range_tab", "Range with custom table", 0, AV_OPT_TYPE_CONST,
1881 { .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1882 { "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST,
1883 { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1884 { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT,
1885 { .i64 = 0 }, 0, 1, VE },
1886 { "qtable", "Quantization table", OFFSET(qtable), AV_OPT_TYPE_INT,
1887 { .i64 = -1 }, -1, 2, VE , .unit = "qtable"},
1888 { "default", NULL, 0, AV_OPT_TYPE_CONST,
1889 { .i64 = QTABLE_DEFAULT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1890 { "8bit", NULL, 0, AV_OPT_TYPE_CONST,
1891 { .i64 = QTABLE_8BIT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1892 { "greater8bit", NULL, 0, AV_OPT_TYPE_CONST,
1893 { .i64 = QTABLE_GT8BIT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1894 { "remap_mode", "Remap Mode", OFFSET(remap_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE, .unit = "remap_mode" },
1895 { "auto", "Automatic", 0, AV_OPT_TYPE_CONST,
1896 { .i64 = -1 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1897 { "off", "Disabled", 0, AV_OPT_TYPE_CONST,
1898 { .i64 = 0 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1899 { "dualrle", "Dual RLE", 0, AV_OPT_TYPE_CONST,
1900 { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1901 { "flipdualrle", "Dual RLE", 0, AV_OPT_TYPE_CONST,
1902 { .i64 = 2 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1903 { "remap_optimizer", "Remap Optimizer", OFFSET(remap_optimizer), AV_OPT_TYPE_INT, { .i64 = 3 }, 0, 5, VE, .unit = "remap_optimizer" },
1904
1905 { NULL }
1906 };
1907
1908 static const AVClass ffv1_class = {
1909 .class_name = "ffv1 encoder",
1910 .item_name = av_default_item_name,
1911 .option = options,
1912 .version = LIBAVUTIL_VERSION_INT,
1913 };
1914
1915 const FFCodec ff_ffv1_encoder = {
1916 .p.name = "ffv1",
1917 CODEC_LONG_NAME("FFmpeg video codec #1"),
1918 .p.type = AVMEDIA_TYPE_VIDEO,
1919 .p.id = AV_CODEC_ID_FFV1,
1920 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
1921 AV_CODEC_CAP_SLICE_THREADS |
1922 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
1923 .priv_data_size = sizeof(FFV1Context),
1924 .init = encode_init_internal,
1925 FF_CODEC_ENCODE_CB(encode_frame),
1926 .close = encode_close,
1927 CODEC_PIXFMTS(
1928 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV444P,
1929 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P,
1930 AV_PIX_FMT_YUV410P, AV_PIX_FMT_0RGB32, AV_PIX_FMT_RGB32, AV_PIX_FMT_YUV420P16,
1931 AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9,
1932 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
1933 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
1934 AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
1935 AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA422P12,
1936 AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
1937 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
1938 AV_PIX_FMT_GRAY16, AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
1939 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRAP14,
1940 AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12,
1941 AV_PIX_FMT_YA8,
1942 AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14,
1943 AV_PIX_FMT_GBRP16, AV_PIX_FMT_RGB48,
1944 AV_PIX_FMT_GBRAP16, AV_PIX_FMT_RGBA64,
1945 AV_PIX_FMT_GRAY9,
1946 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
1947 AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV440P12,
1948 AV_PIX_FMT_YAF16,
1949 AV_PIX_FMT_GRAYF16,
1950 AV_PIX_FMT_GBRPF16, AV_PIX_FMT_GBRPF32),
1951 .color_ranges = AVCOL_RANGE_MPEG,
1952 .p.priv_class = &ffv1_class,
1953 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_EOF_FLUSH,
1954 };
1955