FFmpeg
ffv1enc.c
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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/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 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  for (i = 1; i < 256; i++)
147  l2tab[i] = -log2(i / 256.0) * ((1U << 31) / 8);
148 
149  for (i = 0; i < 256; i++) {
150  uint64_t best_len[256];
151 
152  for (j = 0; j < 256; j++)
153  best_len[j] = UINT64_MAX;
154 
155  for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) {
156  uint32_t occ[256] = { 0 };
157  uint64_t len = 0;
158  occ[j] = UINT32_MAX;
159 
160  if (!one_state[j])
161  continue;
162 
163  for (k = 0; k < 256; k++) {
164  uint32_t newocc[256] = { 0 };
165  for (m = 1; m < 256; m++)
166  if (occ[m]) {
167  len += (occ[m]*(( i *(uint64_t)l2tab[ m]
168  + (256-i)*(uint64_t)l2tab[256-m])>>8)) >> 8;
169  }
170  if (len < best_len[k]) {
171  best_len[k] = len;
172  best_state[i][k] = j;
173  }
174  for (m = 1; m < 256; m++)
175  if (occ[m]) {
176  newocc[ one_state[ m]] += occ[m] * (uint64_t) i >> 8;
177  newocc[256 - one_state[256 - m]] += occ[m] * (uint64_t)(256 - i) >> 8;
178  }
179  memcpy(occ, newocc, sizeof(occ));
180  }
181  }
182  }
183 }
184 
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  if (v) {
203  const unsigned a = is_signed ? FFABS(v) : v;
204  const int e = av_log2(a);
205  put_rac(c, state + 0, 0);
206  if (e <= 9) {
207  for (i = 0; i < e; i++)
208  put_rac(c, state + 1 + i, 1); // 1..10
209  put_rac(c, state + 1 + i, 0);
210 
211  for (i = e - 1; i >= 0; i--)
212  put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31
213 
214  if (is_signed)
215  put_rac(c, state + 11 + e, v < 0); // 11..21
216  } else {
217  for (i = 0; i < e; i++)
218  put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10
219  put_rac(c, state + 1 + 9, 0);
220 
221  for (i = e - 1; i >= 0; i--)
222  put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31
223 
224  if (is_signed)
225  put_rac(c, state + 11 + 10, v < 0); // 11..21
226  }
227  } else {
228  put_rac(c, state + 0, 1);
229  }
230 #undef put_rac
231 }
232 
233 static av_noinline void put_symbol(RangeCoder *c, uint8_t *state,
234  int v, int is_signed)
235 {
236  put_symbol_inline(c, state, v, is_signed, NULL, NULL);
237 }
238 
239 
240 static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state,
241  int v, int bits)
242 {
243  int i, k, code;
244  v = fold(v - state->bias, bits);
245 
246  i = state->count;
247  k = 0;
248  while (i < state->error_sum) { // FIXME: optimize
249  k++;
250  i += i;
251  }
252 
253  av_assert2(k <= 16);
254 
255  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  set_sr_golomb(pb, code, k, 12, bits);
260 
262 }
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 
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  const int pass1 = !!(f->avctx->flags & AV_CODEC_FLAG_PASS1);
280  const int ring_size = f->context_model ? 3 : 2;
281  int16_t *sample[3];
282  sc->run_index = 0;
283 
284  sample[2] = sc->sample_buffer; // dummy to avoid UB pointer arithmetic
285 
286  memset(sc->sample_buffer, 0, ring_size * (w + 6) * sizeof(*sc->sample_buffer));
287 
288  for (y = 0; y < h; y++) {
289  for (i = 0; i < ring_size; i++)
290  sample[i] = sc->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3;
291 
292  sample[0][-1]= sample[1][0 ];
293  sample[1][ w]= sample[1][w-1];
294 
295  if (f->bits_per_raw_sample <= 8) {
296  for (x = 0; x < w; x++)
297  sample[0][x] = src[x * pixel_stride + stride * y];
298  if (sc->remap)
299  for (x = 0; x < w; x++)
300  sample[0][x] = sc->fltmap[remap_index][ sample[0][x] ];
301 
302  if((ret = encode_line(f, sc, f->avctx, w, sample, plane_index, 8, ac, pass1)) < 0)
303  return ret;
304  } else {
305  if (f->packed_at_lsb) {
306  for (x = 0; x < w; x++) {
307  sample[0][x] = ((uint16_t*)(src + stride*y))[x * pixel_stride];
308  }
309  } else {
310  for (x = 0; x < w; x++) {
311  sample[0][x] = ((uint16_t*)(src + stride*y))[x * pixel_stride] >> (16 - f->bits_per_raw_sample);
312  }
313  }
314  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  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  return 0;
323 }
324 
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 static void write_quant_table(RangeCoder *c, int16_t *quant_table)
350 {
351  int last = 0;
352  int i;
353  uint8_t state[CONTEXT_SIZE];
354  memset(state, 128, sizeof(state));
355 
356  for (i = 1; i < MAX_QUANT_TABLE_SIZE/2; i++)
357  if (quant_table[i] != quant_table[i - 1]) {
358  put_symbol(c, state, i - last - 1, 0);
359  last = i;
360  }
361  put_symbol(c, state, i - last - 1, 0);
362 }
363 
366 {
367  int i;
368  for (i = 0; i < 5; i++)
370 }
371 
372 static int contains_non_128(uint8_t (*initial_state)[CONTEXT_SIZE],
373  int nb_contexts)
374 {
375  if (!initial_state)
376  return 0;
377  for (int i = 0; i < nb_contexts; i++)
378  for (int j = 0; j < CONTEXT_SIZE; j++)
379  if (initial_state[i][j] != 128)
380  return 1;
381  return 0;
382 }
383 
385 {
386  uint8_t state[CONTEXT_SIZE];
387  int i, j;
388  RangeCoder *const c = &f->slices[0].c;
389 
390  memset(state, 128, sizeof(state));
391 
392  if (f->version < 2) {
393  put_symbol(c, state, f->version, 0);
394  put_symbol(c, state, f->ac, 0);
395  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  put_symbol(c, state, f->colorspace, 0); //YUV cs type
401  if (f->version > 0)
402  put_symbol(c, state, f->bits_per_raw_sample, 0);
403  put_rac(c, state, f->chroma_planes);
404  put_symbol(c, state, f->chroma_h_shift, 0);
405  put_symbol(c, state, f->chroma_v_shift, 0);
406  put_rac(c, state, f->transparency);
407 
408  write_quant_tables(c, f->quant_tables[f->context_model]);
409  } else if (f->version < 3) {
410  put_symbol(c, state, f->slice_count, 0);
411  for (i = 0; i < f->slice_count; i++) {
412  FFV1SliceContext *fs = &f->slices[i];
413  put_symbol(c, state,
414  (fs->slice_x + 1) * f->num_h_slices / f->width, 0);
415  put_symbol(c, state,
416  (fs->slice_y + 1) * f->num_v_slices / f->height, 0);
417  put_symbol(c, state,
418  (fs->slice_width + 1) * f->num_h_slices / f->width - 1,
419  0);
420  put_symbol(c, state,
421  (fs->slice_height + 1) * f->num_v_slices / f->height - 1,
422  0);
423  for (j = 0; j < f->plane_count; j++) {
424  put_symbol(c, state, fs->plane[j].quant_table_index, 0);
425  av_assert0(fs->plane[j].quant_table_index == f->context_model);
426  }
427  }
428  }
429 }
430 
432 {
433  f->combined_version = f->version << 16;
434  if (f->version > 2) {
435  if (f->version == 3) {
436  f->micro_version = 4;
437  } else if (f->version == 4) {
438  f->micro_version = 8;
439  } else
440  av_assert0(0);
441 
442  f->combined_version += f->micro_version;
443  } else
444  av_assert0(f->micro_version == 0);
445 }
446 
448 {
449  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  memset(state2, 128, sizeof(state2));
458  memset(state, 128, sizeof(state));
459 
460  f->avctx->extradata_size = 10000 + 4 +
461  (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32;
462  f->avctx->extradata = av_malloc(f->avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
463  if (!f->avctx->extradata)
464  return AVERROR(ENOMEM);
465  ff_init_range_encoder(&c, f->avctx->extradata, f->avctx->extradata_size);
466  ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
467 
468  put_symbol(&c, state, f->version, 0);
469  if (f->version > 2)
470  put_symbol(&c, state, f->micro_version, 0);
471 
472  put_symbol(&c, state, f->ac, 0);
473  if (f->ac == AC_RANGE_CUSTOM_TAB)
474  for (i = 1; i < 256; i++)
475  put_symbol(&c, state, f->state_transition[i] - c.one_state[i], 1);
476 
477  put_symbol(&c, state, f->colorspace, 0); // YUV cs type
478  put_symbol(&c, state, f->bits_per_raw_sample, 0);
479  put_rac(&c, state, f->chroma_planes);
480  put_symbol(&c, state, f->chroma_h_shift, 0);
481  put_symbol(&c, state, f->chroma_v_shift, 0);
482  put_rac(&c, state, f->transparency);
483  put_symbol(&c, state, f->num_h_slices - 1, 0);
484  put_symbol(&c, state, f->num_v_slices - 1, 0);
485 
486  put_symbol(&c, state, f->quant_table_count, 0);
487  for (i = 0; i < f->quant_table_count; i++)
488  write_quant_tables(&c, f->quant_tables[i]);
489 
490  for (i = 0; i < f->quant_table_count; i++) {
491  if (contains_non_128(f->initial_states[i], f->context_count[i])) {
492  put_rac(&c, state, 1);
493  for (j = 0; j < f->context_count[i]; j++)
494  for (k = 0; k < CONTEXT_SIZE; k++) {
495  int pred = j ? f->initial_states[i][j - 1][k] : 128;
496  put_symbol(&c, state2[k],
497  (int8_t)(f->initial_states[i][j][k] - pred), 1);
498  }
499  } else {
500  put_rac(&c, state, 0);
501  }
502  }
503 
504  if (f->version > 2) {
505  put_symbol(&c, state, f->ec, 0);
506  put_symbol(&c, state, f->intra = (f->avctx->gop_size < 2), 0);
507  }
508 
509  f->avctx->extradata_size = ff_rac_terminate(&c, 0);
510  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  AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v);
512  f->avctx->extradata_size += 4;
513 
514  return 0;
515 }
516 
517 static int sort_stt(FFV1Context *s, uint8_t stt[256])
518 {
519  int i, i2, changed, print = 0;
520 
521  do {
522  changed = 0;
523  for (i = 12; i < 244; i++) {
524  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  double size0 = COST2(i, i) + COST2(i2, i2);
534  double sizeX = COST2(i, i2) + COST2(i2, i);
535  if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) {
536  int j;
537  FFSWAP(int, stt[i], stt[i2]);
538  FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]);
539  FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]);
540  if (i != 256 - i2) {
541  FFSWAP(int, stt[256 - i], stt[256 - i2]);
542  FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]);
543  FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]);
544  }
545  for (j = 1; j < 256; j++) {
546  if (stt[j] == i)
547  stt[j] = i2;
548  else if (stt[j] == i2)
549  stt[j] = i;
550  if (i != 256 - i2) {
551  if (stt[256 - j] == 256 - i)
552  stt[256 - j] = 256 - i2;
553  else if (stt[256 - j] == 256 - i2)
554  stt[256 - j] = 256 - i;
555  }
556  }
557  print = changed = 1;
558  }
559  }
560  }
561  } while (changed);
562  return print;
563 }
564 
565 
567 {
568  FFV1Context *s = avctx->priv_data;
569  int plane_count = 1 + 2*s->chroma_planes + s->transparency;
570  int max_h_slices = AV_CEIL_RSHIFT(avctx->width , s->chroma_h_shift);
571  int max_v_slices = AV_CEIL_RSHIFT(avctx->height, s->chroma_v_shift);
572  s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
573  s->num_v_slices = FFMIN(s->num_v_slices, max_v_slices);
574  for (; s->num_v_slices <= 32; s->num_v_slices++) {
575  for (s->num_h_slices = s->num_v_slices; s->num_h_slices <= 2*s->num_v_slices; s->num_h_slices++) {
576  int maxw = (avctx->width + s->num_h_slices - 1) / s->num_h_slices;
577  int maxh = (avctx->height + s->num_v_slices - 1) / s->num_v_slices;
578  if (s->num_h_slices > max_h_slices || s->num_v_slices > max_v_slices)
579  continue;
580  if (maxw * maxh * (int64_t)(s->bits_per_raw_sample+1) * plane_count > 8<<24)
581  continue;
582  if (s->version < 4)
583  if ( ff_need_new_slices(avctx->width , s->num_h_slices, s->chroma_h_shift)
584  ||ff_need_new_slices(avctx->height, s->num_v_slices, s->chroma_v_shift))
585  continue;
586  if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= MAX_SLICES)
587  return 0;
588  if (maxw*maxh > 360*288)
589  continue;
590  if (!avctx->slices)
591  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 
602 {
603  FFV1Context *s = avctx->priv_data;
604  int i, j, k, m, ret;
605 
606  if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) ||
607  avctx->slices > 1)
608  s->version = FFMAX(s->version, 2);
609 
610  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  if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576)
617  s->version = FFMAX(s->version, 2);
618 
619  if (avctx->level <= 0 && s->version == 2) {
620  s->version = 3;
621  }
622  if (avctx->level >= 0 && avctx->level <= 4) {
623  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  s->version = avctx->level;
628  } else if (s->version < 3)
629  s->version = 3;
630 
631  if (s->ec < 0) {
632  if (s->version >= 4) {
633  s->ec = 2;
634  } else if (s->version >= 3) {
635  s->ec = 1;
636  } else
637  s->ec = 0;
638  }
639 
640  // CRC requires version 3+
641  if (s->ec == 1)
642  s->version = FFMAX(s->version, 3);
643  if (s->ec == 2) {
644  s->version = FFMAX(s->version, 4);
645  s->crcref = 0x7a8c4079;
646  }
647 
648  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  if (s->ac == AC_RANGE_CUSTOM_TAB) {
654  for (i = 1; i < 256; i++)
655  s->state_transition[i] = ver2_state[i];
656  } else {
657  RangeCoder c;
658  ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
659  for (i = 1; i < 256; i++)
660  s->state_transition[i] = c.one_state[i];
661  }
662 
663  for (i = 0; i < 256; i++) {
664  s->quant_table_count = 2;
665  if ((s->qtable == -1 && s->bits_per_raw_sample <= 8) || s->qtable == 1) {
666  s->quant_tables[0][0][i]= quant11[i];
667  s->quant_tables[0][1][i]= 11*quant11[i];
668  s->quant_tables[0][2][i]= 11*11*quant11[i];
669  s->quant_tables[1][0][i]= quant11[i];
670  s->quant_tables[1][1][i]= 11*quant11[i];
671  s->quant_tables[1][2][i]= 11*11*quant5 [i];
672  s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
673  s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
674  s->context_count[0] = (11 * 11 * 11 + 1) / 2;
675  s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
676  } else {
677  s->quant_tables[0][0][i]= quant9_10bit[i];
678  s->quant_tables[0][1][i]= 9*quant9_10bit[i];
679  s->quant_tables[0][2][i]= 9*9*quant9_10bit[i];
680  s->quant_tables[1][0][i]= quant9_10bit[i];
681  s->quant_tables[1][1][i]= 9*quant9_10bit[i];
682  s->quant_tables[1][2][i]= 9*9*quant5_10bit[i];
683  s->quant_tables[1][3][i]= 5*9*9*quant5_10bit[i];
684  s->quant_tables[1][4][i]= 5*5*9*9*quant5_10bit[i];
685  s->context_count[0] = (9 * 9 * 9 + 1) / 2;
686  s->context_count[1] = (9 * 9 * 5 * 5 * 5 + 1) / 2;
687  }
688  }
689 
691  return ret;
692 
693  if (!s->transparency)
694  s->plane_count = 2;
695  if (!s->chroma_planes && s->version > 3)
696  s->plane_count--;
697 
698  s->picture_number = 0;
699 
700  if (avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) {
701  for (i = 0; i < s->quant_table_count; i++) {
702  s->rc_stat2[i] = av_mallocz(s->context_count[i] *
703  sizeof(*s->rc_stat2[i]));
704  if (!s->rc_stat2[i])
705  return AVERROR(ENOMEM);
706  }
707  }
708  if (avctx->stats_in) {
709  char *p = avctx->stats_in;
710  uint8_t (*best_state)[256] = av_malloc_array(256, 256);
711  int gob_count = 0;
712  char *next;
713  if (!best_state)
714  return AVERROR(ENOMEM);
715 
716  av_assert0(s->version >= 2);
717 
718  for (;;) {
719  for (j = 0; j < 256; j++)
720  for (i = 0; i < 2; i++) {
721  s->rc_stat[j][i] = strtol(p, &next, 0);
722  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  p = next;
729  }
730  for (i = 0; i < s->quant_table_count; i++)
731  for (j = 0; j < s->context_count[i]; j++) {
732  for (k = 0; k < 32; k++)
733  for (m = 0; m < 2; m++) {
734  s->rc_stat2[i][j][k][m] = strtol(p, &next, 0);
735  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  p = next;
743  }
744  }
745  gob_count = strtol(p, &next, 0);
746  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  p = next;
752  while (*p == '\n' || *p == ' ')
753  p++;
754  if (p[0] == 0)
755  break;
756  }
757  if (s->ac == AC_RANGE_CUSTOM_TAB)
758  sort_stt(s, s->state_transition);
759 
760  find_best_state(best_state, s->state_transition);
761 
762  for (i = 0; i < s->quant_table_count; i++) {
763  for (k = 0; k < 32; k++) {
764  double a=0, b=0;
765  int jp = 0;
766  for (j = 0; j < s->context_count[i]; j++) {
767  double p = 128;
768  if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) {
769  if (a+b)
770  p = 256.0 * b / (a + b);
771  s->initial_states[i][jp][k] =
772  best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
773  for(jp++; jp<j; jp++)
774  s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k];
775  a=b=0;
776  }
777  a += s->rc_stat2[i][j][k][0];
778  b += s->rc_stat2[i][j][k][1];
779  if (a+b) {
780  p = 256.0 * b / (a + b);
781  }
782  s->initial_states[i][j][k] =
783  best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
784  }
785  }
786  }
787  av_freep(&best_state);
788  }
789 
790  if (s->version <= 1) {
791  /* Disable slices when the version doesn't support them */
792  s->num_h_slices = 1;
793  s->num_v_slices = 1;
794  }
795 
797 
798  return 0;
799 }
800 
802  enum AVPixelFormat pix_fmt)
803 {
804  FFV1Context *s = avctx->priv_data;
806 
807  s->plane_count = 3;
808  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:
816  if (!avctx->bits_per_raw_sample)
817  s->bits_per_raw_sample = 9;
818  case AV_PIX_FMT_GRAY10:
826  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
827  s->bits_per_raw_sample = 10;
828  case AV_PIX_FMT_GRAY12:
835  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
836  s->bits_per_raw_sample = 12;
837  case AV_PIX_FMT_GRAY14:
841  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
842  s->bits_per_raw_sample = 14;
843  s->packed_at_lsb = 1;
844  case AV_PIX_FMT_GRAY16:
845  case AV_PIX_FMT_P016:
846  case AV_PIX_FMT_P216:
847  case AV_PIX_FMT_P416:
854  case AV_PIX_FMT_GRAYF16:
855  case AV_PIX_FMT_YAF16:
856  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
857  s->bits_per_raw_sample = 16;
858  } else if (!s->bits_per_raw_sample) {
859  s->bits_per_raw_sample = avctx->bits_per_raw_sample;
860  }
861  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  s->version = FFMAX(s->version, 1);
866  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  s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
881  s->colorspace = 0;
882  s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
883  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
884  s->bits_per_raw_sample = 8;
885  else if (!s->bits_per_raw_sample)
886  s->bits_per_raw_sample = 8;
887  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  case AV_PIX_FMT_RGB48:
903  s->colorspace = 1;
904  s->chroma_planes = 1;
905  s->bits_per_raw_sample = 16;
906  s->use32bit = 1;
907  s->version = FFMAX(s->version, 1);
908  break;
909  case AV_PIX_FMT_0RGB32:
910  s->colorspace = 1;
911  s->chroma_planes = 1;
912  s->bits_per_raw_sample = 8;
913  break;
914  case AV_PIX_FMT_GBRP9:
915  if (!avctx->bits_per_raw_sample)
916  s->bits_per_raw_sample = 9;
917  case AV_PIX_FMT_GBRP10:
918  case AV_PIX_FMT_GBRAP10:
919  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
920  s->bits_per_raw_sample = 10;
921  case AV_PIX_FMT_GBRP12:
922  case AV_PIX_FMT_GBRAP12:
923  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
924  s->bits_per_raw_sample = 12;
925  case AV_PIX_FMT_GBRP14:
926  case AV_PIX_FMT_GBRAP14:
927  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
928  s->bits_per_raw_sample = 14;
929  case AV_PIX_FMT_GBRP16:
930  case AV_PIX_FMT_GBRAP16:
931  case AV_PIX_FMT_GBRPF16:
932  case AV_PIX_FMT_GBRAPF16:
933  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
934  s->bits_per_raw_sample = 16;
935  case AV_PIX_FMT_GBRPF32:
936  case AV_PIX_FMT_GBRAPF32:
937  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
938  s->bits_per_raw_sample = 32;
939  else if (!s->bits_per_raw_sample)
940  s->bits_per_raw_sample = avctx->bits_per_raw_sample;
941  s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
942  s->colorspace = 1;
943  s->chroma_planes = 1;
944  if (s->bits_per_raw_sample >= 16) {
945  s->use32bit = 1;
946  }
947  s->version = FFMAX(s->version, 1);
948  break;
949  default:
950  av_log(avctx, AV_LOG_ERROR, "format %s not supported\n",
952  return AVERROR(ENOSYS);
953  }
954  s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT);
955  if (s->flt || s->remap_mode > 0)
956  s->version = FFMAX(s->version, 4);
957  av_assert0(s->bits_per_raw_sample >= 8);
958 
959  if (s->remap_mode < 0)
960  s->remap_mode = s->flt ? 2 : 0;
961  if (s->remap_mode == 0 && s->bits_per_raw_sample == 32) {
962  av_log(avctx, AV_LOG_ERROR, "32bit requires remap\n");
963  return AVERROR(EINVAL);
964  }
965  if (s->remap_mode == 2 &&
966  !((s->bits_per_raw_sample == 16 || s->bits_per_raw_sample == 32 || s->bits_per_raw_sample == 64) && s->flt)) {
967  av_log(avctx, AV_LOG_ERROR, "remap 2 is for float16/32/64 only\n");
968  return AVERROR(EINVAL);
969  }
970 
971  return av_pix_fmt_get_chroma_sub_sample(pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
972 }
973 
975 {
976  int ret;
977  FFV1Context *s = avctx->priv_data;
978 
979  if ((ret = ff_ffv1_common_init(avctx, s)) < 0)
980  return ret;
981 
982  if (s->ac == 1) // Compatbility with common command line usage
983  s->ac = AC_RANGE_CUSTOM_TAB;
984  else if (s->ac == AC_RANGE_DEFAULT_TAB_FORCE)
985  s->ac = AC_RANGE_DEFAULT_TAB;
986 
988  if (ret < 0)
989  return ret;
990 
991  if (s->bits_per_raw_sample > (s->version > 3 ? 16 : 8) && !s->remap_mode) {
992  if (s->ac == AC_GOLOMB_RICE) {
993  av_log(avctx, AV_LOG_INFO,
994  "high bits_per_raw_sample, forcing range coder\n");
995  s->ac = AC_RANGE_CUSTOM_TAB;
996  }
997  }
998 
999 
1000  ret = ff_ffv1_encode_init(avctx);
1001  if (ret < 0)
1002  return ret;
1003 
1004  if (s->version > 1) {
1005  if ((ret = ff_ffv1_encode_determine_slices(avctx)) < 0)
1006  return ret;
1007 
1008  if ((ret = ff_ffv1_write_extradata(avctx)) < 0)
1009  return ret;
1010  }
1011 
1012  if ((ret = ff_ffv1_init_slice_contexts(s)) < 0)
1013  return ret;
1014  s->slice_count = s->max_slice_count;
1015 
1016  for (int j = 0; j < s->slice_count; j++) {
1017  FFV1SliceContext *sc = &s->slices[j];
1018 
1019  for (int i = 0; i < s->plane_count; i++) {
1020  PlaneContext *const p = &s->slices[j].plane[i];
1021 
1022  p->quant_table_index = s->context_model;
1023  p->context_count = s->context_count[p->quant_table_index];
1024  }
1025  av_assert0(s->remap_mode >= 0);
1026  if (s->remap_mode) {
1027  for (int p = 0; p < 1 + 2*s->chroma_planes + s->transparency ; p++) {
1028  if (s->bits_per_raw_sample == 32) {
1029  sc->unit[p] = av_malloc_array(sc->slice_width, sc->slice_height * sizeof(**sc->unit));
1030  if (!sc->unit[p])
1031  return AVERROR(ENOMEM);
1032  sc->bitmap[p] = av_malloc_array(sc->slice_width * sc->slice_height, sizeof(*sc->bitmap[p]));
1033  if (!sc->bitmap[p])
1034  return AVERROR(ENOMEM);
1035  } else {
1036  sc->fltmap[p] = av_malloc_array(65536, sizeof(*sc->fltmap[p]));
1037  if (!sc->fltmap[p])
1038  return AVERROR(ENOMEM);
1039  }
1040  }
1041  }
1042 
1043  ff_build_rac_states(&s->slices[j].c, 0.05 * (1LL << 32), 256 - 8);
1044 
1045  s->slices[j].remap = s->remap_mode;
1046  }
1047 
1048  if ((ret = ff_ffv1_init_slices_state(s)) < 0)
1049  return ret;
1050 
1051 #define STATS_OUT_SIZE 1024 * 1024 * 6
1052  if (avctx->flags & AV_CODEC_FLAG_PASS1) {
1054  if (!avctx->stats_out)
1055  return AVERROR(ENOMEM);
1056  for (int i = 0; i < s->quant_table_count; i++)
1057  for (int j = 0; j < s->max_slice_count; j++) {
1058  FFV1SliceContext *sc = &s->slices[j];
1059  av_assert0(!sc->rc_stat2[i]);
1060  sc->rc_stat2[i] = av_mallocz(s->context_count[i] *
1061  sizeof(*sc->rc_stat2[i]));
1062  if (!sc->rc_stat2[i])
1063  return AVERROR(ENOMEM);
1064  }
1065  }
1066 
1067  return 0;
1068 }
1069 
1071 {
1072  RangeCoder *c = &sc->c;
1073  uint8_t state[CONTEXT_SIZE];
1074  int j;
1075  memset(state, 128, sizeof(state));
1076 
1077  put_symbol(c, state, sc->sx, 0);
1078  put_symbol(c, state, sc->sy, 0);
1079  put_symbol(c, state, 0, 0);
1080  put_symbol(c, state, 0, 0);
1081  for (j=0; j<f->plane_count; j++) {
1082  put_symbol(c, state, sc->plane[j].quant_table_index, 0);
1083  av_assert0(sc->plane[j].quant_table_index == f->context_model);
1084  }
1085  if (!(f->cur_enc_frame->flags & AV_FRAME_FLAG_INTERLACED))
1086  put_symbol(c, state, 3, 0);
1087  else
1088  put_symbol(c, state, 1 + !(f->cur_enc_frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST), 0);
1089  put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.num, 0);
1090  put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.den, 0);
1091  if (f->version > 3) {
1092  put_rac(c, state, sc->slice_coding_mode == 1);
1093  if (sc->slice_coding_mode == 1)
1095  put_symbol(c, state, sc->slice_coding_mode, 0);
1096  if (sc->slice_coding_mode != 1 && f->colorspace == 1) {
1097  put_symbol(c, state, sc->slice_rct_by_coef, 0);
1098  put_symbol(c, state, sc->slice_rct_ry_coef, 0);
1099  }
1100  put_symbol(c, state, sc->remap, 0);
1101  }
1102 }
1103 
1105  const uint8_t *src[3], const int stride[3], int w, int h)
1106 {
1107 #define NB_Y_COEFF 15
1108  static const int rct_y_coeff[15][2] = {
1109  {0, 0}, // 4G
1110  {1, 1}, // R + 2G + B
1111  {2, 2}, // 2R + 2B
1112  {0, 2}, // 2G + 2B
1113  {2, 0}, // 2R + 2G
1114  {4, 0}, // 4R
1115  {0, 4}, // 4B
1116 
1117  {0, 3}, // 1G + 3B
1118  {3, 0}, // 3R + 1G
1119  {3, 1}, // 3R + B
1120  {1, 3}, // R + 3B
1121  {1, 2}, // R + G + 2B
1122  {2, 1}, // 2R + G + B
1123  {0, 1}, // 3G + B
1124  {1, 0}, // R + 3G
1125  };
1126 
1127  int stat[NB_Y_COEFF] = {0};
1128  int x, y, i, p, best;
1129  int16_t *sample[3];
1130  int lbd = f->bits_per_raw_sample <= 8;
1131  int packed = !src[1];
1132  int transparency = f->transparency;
1133  int packed_size = (3 + transparency)*2;
1134 
1135  for (y = 0; y < h; y++) {
1136  int lastr=0, lastg=0, lastb=0;
1137  for (p = 0; p < 3; p++)
1138  sample[p] = sc->sample_buffer + p*w;
1139 
1140  for (x = 0; x < w; x++) {
1141  int b, g, r;
1142  int ab, ag, ar;
1143  if (lbd) {
1144  unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
1145  b = v & 0xFF;
1146  g = (v >> 8) & 0xFF;
1147  r = (v >> 16) & 0xFF;
1148  } else if (packed) {
1149  const uint16_t *p = ((const uint16_t*)(src[0] + x*packed_size + stride[0]*y));
1150  r = p[0];
1151  g = p[1];
1152  b = p[2];
1153  } else if (f->use32bit || transparency) {
1154  g = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
1155  b = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
1156  r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
1157  } else {
1158  b = *((const uint16_t*)(src[0] + x*2 + stride[0]*y));
1159  g = *((const uint16_t*)(src[1] + x*2 + stride[1]*y));
1160  r = *((const uint16_t*)(src[2] + x*2 + stride[2]*y));
1161  }
1162 
1163  ar = r - lastr;
1164  ag = g - lastg;
1165  ab = b - lastb;
1166  if (x && y) {
1167  int bg = ag - sample[0][x];
1168  int bb = ab - sample[1][x];
1169  int br = ar - sample[2][x];
1170 
1171  br -= bg;
1172  bb -= bg;
1173 
1174  for (i = 0; i<NB_Y_COEFF; i++) {
1175  stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2));
1176  }
1177 
1178  }
1179  sample[0][x] = ag;
1180  sample[1][x] = ab;
1181  sample[2][x] = ar;
1182 
1183  lastr = r;
1184  lastg = g;
1185  lastb = b;
1186  }
1187  }
1188 
1189  best = 0;
1190  for (i=1; i<NB_Y_COEFF; i++) {
1191  if (stat[i] < stat[best])
1192  best = i;
1193  }
1194 
1195  sc->slice_rct_by_coef = rct_y_coeff[best][1];
1196  sc->slice_rct_ry_coef = rct_y_coeff[best][0];
1197 }
1198 
1200 {
1201  int len = 1 << f->bits_per_raw_sample;
1202  int flip = sc->remap == 2 ? 0x7FFF : 0;
1203 
1204  for (int p= 0; p < 1 + 2*f->chroma_planes + f->transparency; p++) {
1205  int j = 0;
1206  int lu = 0;
1207  uint8_t state[2][32];
1208  int run = 0;
1209 
1210  memset(state, 128, sizeof(state));
1211  put_symbol(&sc->c, state[0], 0, 0);
1212  memset(state, 128, sizeof(state));
1213  for (int i= 0; i<len; i++) {
1214  int ri = i ^ ((i&0x8000) ? 0 : flip);
1215  int u = sc->fltmap[p][ri];
1216  sc->fltmap[p][ri] = j;
1217  j+= u;
1218 
1219  if (lu == u) {
1220  run ++;
1221  } else {
1222  put_symbol_inline(&sc->c, state[lu], run, 0, NULL, NULL);
1223  if (run == 0)
1224  lu = u;
1225  run = 0;
1226  }
1227  }
1228  if (run)
1229  put_symbol(&sc->c, state[lu], run, 0);
1230  sc->remap_count[p] = j;
1231  }
1232 }
1233 
1235  const uint8_t *src[4],
1236  int w, int h, const int stride[4])
1237 {
1238  int x, y;
1239  int transparency = f->transparency;
1240  int i = 0;
1241 
1242  for (y = 0; y < h; y++) {
1243  for (x = 0; x < w; x++) {
1244  int b, g, r, av_uninit(a);
1245 
1246  g = *((const uint32_t *)(src[0] + x*4 + stride[0]*y));
1247  b = *((const uint32_t *)(src[1] + x*4 + stride[1]*y));
1248  r = *((const uint32_t *)(src[2] + x*4 + stride[2]*y));
1249  if (transparency)
1250  a = *((const uint32_t *)(src[3] + x*4 + stride[3]*y));
1251 
1252  if (sc->remap == 2) {
1253 #define FLIP(f) (((f)&0x80000000) ? (f) : (f)^0x7FFFFFFF);
1254  g = FLIP(g);
1255  b = FLIP(b);
1256  r = FLIP(r);
1257  }
1258  // We cannot build a histogram as we do for 16bit, we need a bit of magic here
1259  // Its possible to reduce the memory needed at the cost of more dereferencing
1260  sc->unit[0][i].val = g;
1261  sc->unit[0][i].ndx = x + y*w;
1262 
1263  sc->unit[1][i].val = b;
1264  sc->unit[1][i].ndx = x + y*w;
1265 
1266  sc->unit[2][i].val = r;
1267  sc->unit[2][i].ndx = x + y*w;
1268 
1269  if (transparency) {
1270  sc->unit[3][i].val = a;
1271  sc->unit[3][i].ndx = x + y*w;
1272  }
1273  i++;
1274  }
1275  }
1276 
1277  //TODO switch to radix sort
1278 #define CMP(A,B) ((A)->val - (int64_t)(B)->val)
1279  AV_QSORT(sc->unit[0], i, struct Unit, CMP);
1280  AV_QSORT(sc->unit[1], i, struct Unit, CMP);
1281  AV_QSORT(sc->unit[2], i, struct Unit, CMP);
1282  if (transparency)
1283  AV_QSORT(sc->unit[3], i, struct Unit, CMP);
1284 }
1285 
1287  int p, int mul_count, int *mul_tab, int update, int final)
1288 {
1289  const int pixel_num = sc->slice_width * sc->slice_height;
1290  uint8_t state[2][3][32];
1291  int mul[4096+1];
1292  RangeCoder rc = sc->c;
1293  int lu = 0;
1294  int run = 0;
1295  int64_t last_val = -1;
1296  int compact_index = -1;
1297  int i = 0;
1298  int current_mul_index = -1;
1299  int run1final = 0;
1300  int run1start_i;
1301  int run1start_last_val;
1302  int run1start_mul_index;
1303 
1304  memcpy(mul, mul_tab, sizeof(*mul_tab)*(mul_count+1));
1305  memset(state, 128, sizeof(state));
1306  put_symbol(&rc, state[0][0], mul_count, 0);
1307  memset(state, 128, sizeof(state));
1308 
1309  for (; i < pixel_num+1; i++) {
1310  int current_mul = current_mul_index < 0 ? 1 : FFABS(mul[current_mul_index]);
1311  int64_t val;
1312  if (i == pixel_num) {
1313  if (last_val == 0xFFFFFFFF) {
1314  break;
1315  } else {
1316  val = last_val + ((1LL<<32) - last_val + current_mul - 1) / current_mul * current_mul;
1317  av_assert2(val >= (1LL<<32));
1318  val += lu * current_mul; //ensure a run1 ends
1319  }
1320  } else
1321  val = sc->unit[p][i].val;
1322 
1323  if (last_val != val) {
1324  int64_t delta = val - last_val;
1325  int64_t step = FFMAX(1, (delta + current_mul/2) / current_mul);
1326  av_assert2(last_val < val);
1327  av_assert2(current_mul > 0);
1328 
1329  delta -= step*current_mul;
1330  av_assert2(delta <= current_mul/2);
1331  av_assert2(delta > -current_mul);
1332 
1333  av_assert2(step > 0);
1334  if (lu) {
1335  if (!run) {
1336  run1start_i = i - 1;
1337  run1start_last_val = last_val;
1338  run1start_mul_index= current_mul_index;
1339  }
1340  if (step == 1) {
1341  if (run1final) {
1342  if (current_mul>1)
1343  put_symbol_inline(&rc, state[lu][1], delta, 1, NULL, NULL);
1344  }
1345  run ++;
1346  av_assert2(last_val + current_mul + delta == val);
1347  } else {
1348  if (run1final) {
1349  if (run == 0)
1350  lu ^= 1;
1351  i--; // we did not encode val so we need to backstep
1352  last_val += current_mul;
1353  } else {
1354  put_symbol_inline(&rc, state[lu][0], run, 0, NULL, NULL);
1355  i = run1start_i;
1356  last_val = run1start_last_val; // we could compute this instead of storing
1357  current_mul_index = run1start_mul_index;
1358  }
1359  run1final ^= 1;
1360 
1361  run = 0;
1362  continue;
1363  }
1364  } else {
1365  av_assert2(run == 0);
1366  av_assert2(run1final == 0);
1367  put_symbol_inline(&rc, state[lu][0], step - 1, 0, NULL, NULL);
1368 
1369  if (current_mul > 1)
1370  put_symbol_inline(&rc, state[lu][1], delta, 1, NULL, NULL);
1371  if (step == 1)
1372  lu ^= 1;
1373 
1374  av_assert2(last_val + step * current_mul + delta == val);
1375  }
1376  last_val = val;
1377  current_mul_index = ((last_val + 1) * mul_count) >> 32;
1378  if (!run || run1final) {
1379  av_assert2(mul[ current_mul_index ]);
1380  if (mul[ current_mul_index ] < 0) {
1381  av_assert2(i < pixel_num);
1382  mul[ current_mul_index ] *= -1;
1383  put_symbol_inline(&rc, state[0][2], mul[ current_mul_index ], 0, NULL, NULL);
1384  }
1385  if (i < pixel_num)
1386  compact_index ++;
1387  }
1388  }
1389  if (!run || run1final)
1390  if (final && i < pixel_num)
1391  sc->bitmap[p][sc->unit[p][i].ndx] = compact_index;
1392  }
1393 
1394  if (update) {
1395  sc->c = rc;
1396  sc->remap_count[p] = compact_index + 1;
1397  }
1398  return get_rac_count(&rc);
1399 }
1400 
1402  const uint8_t *src[4])
1403 {
1404  int pixel_num = sc->slice_width * sc->slice_height;
1405  const int max_log2_mul_count = ((int[]){ 1, 1, 1, 9, 9, 10})[f->remap_optimizer];
1406  const int log2_mul_count_step = ((int[]){ 1, 1, 1, 9, 9, 1})[f->remap_optimizer];
1407  const int max_log2_mul = ((int[]){ 1, 8, 8, 9, 22, 22})[f->remap_optimizer];
1408  const int log2_mul_step = ((int[]){ 1, 8, 1, 1, 1, 1})[f->remap_optimizer];
1409  const int bruteforce_count = ((int[]){ 0, 0, 0, 1, 1, 1})[f->remap_optimizer];
1410  const int stair_mode = ((int[]){ 0, 0, 0, 1, 0, 0})[f->remap_optimizer];
1411  const int magic_log2 = ((int[]){ 1, 1, 1, 1, 0, 0})[f->remap_optimizer];
1412 
1413  for (int p= 0; p < 1 + 2*f->chroma_planes + f->transparency; p++) {
1414  int best_log2_mul_count = 0;
1415  float score_sum[11] = {0};
1416  int mul_all[11][1025];
1417 
1418  for (int log2_mul_count= 0; log2_mul_count <= max_log2_mul_count; log2_mul_count += log2_mul_count_step) {
1419  float score_tab_all[1025][23] = {0};
1420  int64_t last_val = -1;
1421  int *mul_tab = mul_all[log2_mul_count];
1422  int last_mul_index = -1;
1423  int mul_count = 1 << log2_mul_count;
1424 
1425  score_sum[log2_mul_count] = 2 * log2_mul_count;
1426  if (magic_log2)
1427  score_sum[log2_mul_count] = av_float2int((float)mul_count * mul_count);
1428  for (int i= 0; i<pixel_num; i++) {
1429  int64_t val = sc->unit[p][i].val;
1430  int mul_index = (val + 1LL)*mul_count >> 32;
1431  if (val != last_val) {
1432  float *score_tab = score_tab_all[(last_val + 1LL)*mul_count >> 32];
1433  av_assert2(last_val < val);
1434  for(int si= 0; si <= max_log2_mul; si += log2_mul_step) {
1435  int64_t delta = val - last_val;
1436  int mul;
1437  int64_t cost;
1438 
1439  if (last_val < 0) {
1440  mul = 1;
1441  } else if (stair_mode && mul_count == 512 && si == max_log2_mul ) {
1442  if (mul_index >= 0x378/8 && mul_index <= 23 + 0x378/8) {
1443  mul = (0x800080 >> (mul_index - 0x378/8));
1444  } else
1445  mul = 1;
1446  } else {
1447  mul = (0x10001LL)<<si >> 16;
1448  }
1449 
1450  cost = FFMAX((delta + mul/2) / mul, 1);
1451  float score = 1;
1452  if (mul > 1) {
1453  score *= (FFABS(delta - cost*mul)+1);
1454  if (mul_count > 1)
1455  score *= score;
1456  }
1457  score *= cost;
1458  score *= score;
1459  if (mul_index != last_mul_index)
1460  score *= mul;
1461  if (magic_log2) {
1462  score_tab[si] += av_float2int(score);
1463  } else
1464  score_tab[si] += log2f(score);
1465  }
1466  }
1467  last_val = val;
1468  last_mul_index = mul_index;
1469  }
1470  for(int i= 0; i<mul_count; i++) {
1471  int best_index = 0;
1472  float *score_tab = score_tab_all[i];
1473  for(int si= 0; si <= max_log2_mul; si += log2_mul_step) {
1474  if (score_tab[si] < score_tab[ best_index ])
1475  best_index = si;
1476  }
1477  if (stair_mode && mul_count == 512 && best_index == max_log2_mul ) {
1478  if (i >= 0x378/8 && i <= 23 + 0x378/8) {
1479  mul_tab[i] = -(0x800080 >> (i - 0x378/8));
1480  } else
1481  mul_tab[i] = -1;
1482  } else
1483  mul_tab[i] = -((0x10001LL)<<best_index >> 16);
1484  score_sum[log2_mul_count] += score_tab[ best_index ];
1485  }
1486  mul_tab[mul_count] = 1;
1487 
1488  if (bruteforce_count)
1489  score_sum[log2_mul_count] = encode_float32_remap_segment(sc, p, mul_count, mul_all[log2_mul_count], 0, 0);
1490 
1491  if (score_sum[log2_mul_count] < score_sum[best_log2_mul_count])
1492  best_log2_mul_count = log2_mul_count;
1493  }
1494 
1495  encode_float32_remap_segment(sc, p, 1<<best_log2_mul_count, mul_all[best_log2_mul_count], 1, 1);
1496  }
1497 }
1498 
1500  const uint8_t *src[4],
1501  int w, int h, const int stride[4], int ac)
1502 {
1503  int x, y, p, i;
1504  const int ring_size = f->context_model ? 3 : 2;
1505  int32_t *sample[4][3];
1506  const int pass1 = !!(f->avctx->flags & AV_CODEC_FLAG_PASS1);
1507  int bits[4], offset;
1508  int transparency = f->transparency;
1509 
1510  ff_ffv1_compute_bits_per_plane(f, sc, bits, &offset, NULL, f->bits_per_raw_sample);
1511 
1512  sc->run_index = 0;
1513 
1514  for (int p = 0; p < MAX_PLANES; ++p)
1515  sample[p][2] = sc->sample_buffer32; // dummy to avoid UB pointer arithmetic
1516 
1517  memset(RENAME(sc->sample_buffer), 0, ring_size * MAX_PLANES *
1518  (w + 6) * sizeof(*RENAME(sc->sample_buffer)));
1519 
1520  for (y = 0; y < h; y++) {
1521  for (i = 0; i < ring_size; i++)
1522  for (p = 0; p < MAX_PLANES; p++)
1523  sample[p][i]= RENAME(sc->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
1524 
1525  for (x = 0; x < w; x++) {
1526  int b, g, r, av_uninit(a);
1527  g = sc->bitmap[0][x + w*y];
1528  b = sc->bitmap[1][x + w*y];
1529  r = sc->bitmap[2][x + w*y];
1530  if (transparency)
1531  a = sc->bitmap[3][x + w*y];
1532 
1533  if (sc->slice_coding_mode != 1) {
1534  b -= g;
1535  r -= g;
1536  g += (b * sc->slice_rct_by_coef + r * sc->slice_rct_ry_coef) >> 2;
1537  b += offset;
1538  r += offset;
1539  }
1540 
1541  sample[0][0][x] = g;
1542  sample[1][0][x] = b;
1543  sample[2][0][x] = r;
1544  sample[3][0][x] = a;
1545  }
1546  for (p = 0; p < 3 + transparency; p++) {
1547  int ret;
1548  sample[p][0][-1] = sample[p][1][0 ];
1549  sample[p][1][ w] = sample[p][1][w-1];
1550  ret = encode_line32(f, sc, f->avctx, w, sample[p], (p + 1) / 2,
1551  bits[p], ac, pass1);
1552  if (ret < 0)
1553  return ret;
1554  }
1555  }
1556  return 0;
1557 }
1558 
1559 
1560 static int encode_slice(AVCodecContext *c, void *arg)
1561 {
1562  FFV1SliceContext *sc = arg;
1563  FFV1Context *f = c->priv_data;
1564  int width = sc->slice_width;
1565  int height = sc->slice_height;
1566  int x = sc->slice_x;
1567  int y = sc->slice_y;
1568  const AVFrame *const p = f->cur_enc_frame;
1569  const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step;
1570  int ret;
1571  RangeCoder c_bak = sc->c;
1572  const int chroma_width = AV_CEIL_RSHIFT(width, f->chroma_h_shift);
1573  const int chroma_height = AV_CEIL_RSHIFT(height, f->chroma_v_shift);
1574  const uint8_t *planes[4] = {p->data[0] + ps*x + y*p->linesize[0],
1575  p->data[1] ? p->data[1] + ps*x + y*p->linesize[1] : NULL,
1576  p->data[2] ? p->data[2] + ps*x + y*p->linesize[2] : NULL,
1577  p->data[3] ? p->data[3] + ps*x + y*p->linesize[3] : NULL};
1578  int ac = f->ac;
1579 
1580  sc->slice_coding_mode = 0;
1581  if (f->version > 3 && f->colorspace == 1) {
1583  } else {
1584  sc->slice_rct_by_coef = 1;
1585  sc->slice_rct_ry_coef = 1;
1586  }
1587 
1588 retry:
1589  if (f->key_frame)
1591  if (f->version > 2) {
1592  encode_slice_header(f, sc);
1593  }
1594 
1595  if (sc->remap) {
1596  //Both the 16bit and 32bit remap do exactly the same thing but with 16bits we can
1597  //Implement this using a "histogram" while for 32bit that would be gb sized, thus a more
1598  //complex implementation sorting pairs is used.
1599  if (f->bits_per_raw_sample != 32) {
1600  if (f->colorspace == 0 && c->pix_fmt != AV_PIX_FMT_YA8 && c->pix_fmt != AV_PIX_FMT_YAF16) {
1601  const int cx = x >> f->chroma_h_shift;
1602  const int cy = y >> f->chroma_v_shift;
1603 
1604  //TODO decide on the order for the encoded remaps and loads. with golomb rice it
1605  // easier to have all range coded ones together, otherwise it may be nicer to handle each plane as a whole?
1606 
1607  load_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 1);
1608 
1609  if (f->chroma_planes) {
1610  load_plane(f, sc, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1, 1);
1611  load_plane(f, sc, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 2, 1);
1612  }
1613  if (f->transparency)
1614  load_plane(f, sc, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 3, 1);
1615  } else if (c->pix_fmt == AV_PIX_FMT_YA8 || c->pix_fmt == AV_PIX_FMT_YAF16) {
1616  load_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 2);
1617  load_plane(f, sc, p->data[0] + (ps>>1) + ps*x + y*p->linesize[0], width, height, p->linesize[0], 1, 2);
1618  } else if (f->use32bit) {
1619  load_rgb_frame32(f, sc, planes, width, height, p->linesize);
1620  } else
1621  load_rgb_frame (f, sc, planes, width, height, p->linesize);
1622 
1624  } else {
1627  }
1628  }
1629 
1630  if (ac == AC_GOLOMB_RICE) {
1631  sc->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&sc->c, f->version > 2) : 0;
1632  init_put_bits(&sc->pb,
1633  sc->c.bytestream_start + sc->ac_byte_count,
1634  sc->c.bytestream_end - sc->c.bytestream_start - sc->ac_byte_count);
1635  }
1636 
1637  if (f->colorspace == 0 && c->pix_fmt != AV_PIX_FMT_YA8 && c->pix_fmt != AV_PIX_FMT_YAF16) {
1638  const int cx = x >> f->chroma_h_shift;
1639  const int cy = y >> f->chroma_v_shift;
1640 
1641  ret = encode_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 0, 1, ac);
1642 
1643  if (f->chroma_planes) {
1644  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);
1645  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);
1646  }
1647  if (f->transparency)
1648  ret |= encode_plane(f, sc, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2, 3, 1, ac);
1649  } else if (c->pix_fmt == AV_PIX_FMT_YA8 || c->pix_fmt == AV_PIX_FMT_YAF16) {
1650  ret = encode_plane(f, sc, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 0, 2, ac);
1651  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);
1652  } else if (f->bits_per_raw_sample == 32) {
1654  } else if (f->use32bit) {
1655  ret = encode_rgb_frame32(f, sc, planes, width, height, p->linesize, ac);
1656  } else {
1657  ret = encode_rgb_frame(f, sc, planes, width, height, p->linesize, ac);
1658  }
1659 
1660  if (ac != AC_GOLOMB_RICE) {
1661  sc->ac_byte_count = ff_rac_terminate(&sc->c, 1);
1662  } else {
1663  flush_put_bits(&sc->pb); // FIXME: nicer padding
1664  sc->ac_byte_count += put_bytes_output(&sc->pb);
1665  }
1666 
1667  if (ret < 0) {
1668  av_assert0(sc->slice_coding_mode == 0);
1669  if (f->version < 4) {
1670  av_log(c, AV_LOG_ERROR, "Buffer too small\n");
1671  return ret;
1672  }
1673  av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n");
1674  ac = 1;
1675  sc->slice_coding_mode = 1;
1676  sc->c = c_bak;
1677  goto retry;
1678  }
1679 
1680  return 0;
1681 }
1682 
1684 {
1685  FFV1Context *f = avctx->priv_data;
1686 
1687  size_t maxsize = avctx->width*avctx->height * (1 + f->transparency);
1688  if (f->chroma_planes)
1689  maxsize += AV_CEIL_RSHIFT(avctx->width, f->chroma_h_shift) * AV_CEIL_RSHIFT(f->height, f->chroma_v_shift) * 2;
1690  maxsize += f->slice_count * 800; //for slice header
1691  if (f->version > 3) {
1692  maxsize *= f->bits_per_raw_sample + 1;
1693  if (f->remap_mode)
1694  maxsize += f->slice_count * 70000 * (1 + 2*f->chroma_planes + f->transparency);
1695  } else {
1696  maxsize += f->slice_count * 2 * (avctx->width + avctx->height); //for bug with slices that code some pixels more than once
1697  maxsize *= 8*(2*f->bits_per_raw_sample + 5);
1698  }
1699  maxsize >>= 3;
1700  maxsize += FF_INPUT_BUFFER_MIN_SIZE;
1701 
1702  return maxsize;
1703 }
1704 
1706  const AVFrame *pict, int *got_packet)
1707 {
1708  FFV1Context *f = avctx->priv_data;
1709  RangeCoder *const c = &f->slices[0].c;
1710  uint8_t keystate = 128;
1711  uint8_t *buf_p;
1712  int i, ret;
1713  int64_t maxsize;
1714 
1715  if(!pict) {
1716  if (avctx->flags & AV_CODEC_FLAG_PASS1) {
1717  int j, k, m;
1718  char *p = avctx->stats_out;
1719  char *end = p + STATS_OUT_SIZE;
1720 
1721  memset(f->rc_stat, 0, sizeof(f->rc_stat));
1722  for (i = 0; i < f->quant_table_count; i++)
1723  memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));
1724 
1725  av_assert0(f->slice_count == f->max_slice_count);
1726  for (j = 0; j < f->slice_count; j++) {
1727  const FFV1SliceContext *sc = &f->slices[j];
1728  for (i = 0; i < 256; i++) {
1729  f->rc_stat[i][0] += sc->rc_stat[i][0];
1730  f->rc_stat[i][1] += sc->rc_stat[i][1];
1731  }
1732  for (i = 0; i < f->quant_table_count; i++) {
1733  for (k = 0; k < f->context_count[i]; k++)
1734  for (m = 0; m < 32; m++) {
1735  f->rc_stat2[i][k][m][0] += sc->rc_stat2[i][k][m][0];
1736  f->rc_stat2[i][k][m][1] += sc->rc_stat2[i][k][m][1];
1737  }
1738  }
1739  }
1740 
1741  for (j = 0; j < 256; j++) {
1742  snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1743  f->rc_stat[j][0], f->rc_stat[j][1]);
1744  p += strlen(p);
1745  }
1746  snprintf(p, end - p, "\n");
1747 
1748  for (i = 0; i < f->quant_table_count; i++) {
1749  for (j = 0; j < f->context_count[i]; j++)
1750  for (m = 0; m < 32; m++) {
1751  snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1752  f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
1753  p += strlen(p);
1754  }
1755  }
1756  snprintf(p, end - p, "%d\n", f->gob_count);
1757  }
1758  return 0;
1759  }
1760 
1761  /* Maximum packet size */
1762  maxsize = ff_ffv1_encode_buffer_size(avctx);
1763 
1764  if (maxsize > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32) {
1765  FFV1Context *f = avctx->priv_data;
1766  if (!f->maxsize_warned) {
1767  av_log(avctx, AV_LOG_WARNING, "Cannot allocate worst case packet size, the encoding could fail\n");
1768  f->maxsize_warned++;
1769  }
1770  maxsize = INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32;
1771  }
1772 
1773  if ((ret = ff_alloc_packet(avctx, pkt, maxsize)) < 0)
1774  return ret;
1775 
1777  ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
1778 
1779  f->cur_enc_frame = pict;
1780 
1781  if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
1782  put_rac(c, &keystate, 1);
1783  f->key_frame = 1;
1784  f->gob_count++;
1785  write_header(f);
1786  } else {
1787  put_rac(c, &keystate, 0);
1788  f->key_frame = 0;
1789  }
1790 
1791  if (f->ac == AC_RANGE_CUSTOM_TAB) {
1792  int i;
1793  for (i = 1; i < 256; i++) {
1794  c->one_state[i] = f->state_transition[i];
1795  c->zero_state[256 - i] = 256 - c->one_state[i];
1796  }
1797  }
1798 
1799  for (i = 0; i < f->slice_count; i++) {
1800  FFV1SliceContext *sc = &f->slices[i];
1801  uint8_t *start = pkt->data + pkt->size * (int64_t)i / f->slice_count;
1802  int len = pkt->size / f->slice_count;
1803  if (i) {
1804  ff_init_range_encoder(&sc->c, start, len);
1805  } else {
1808  sc->c.bytestream_end = sc->c.bytestream_start + len;
1809  }
1810  }
1811  avctx->execute(avctx, encode_slice, f->slices, NULL,
1812  f->slice_count, sizeof(*f->slices));
1813 
1814  buf_p = pkt->data;
1815  for (i = 0; i < f->slice_count; i++) {
1816  FFV1SliceContext *sc = &f->slices[i];
1817  int bytes = sc->ac_byte_count;
1818  if (i > 0 || f->version > 2) {
1819  av_assert0(bytes < pkt->size / f->slice_count);
1820  memmove(buf_p, sc->c.bytestream_start, bytes);
1821  av_assert0(bytes < (1 << 24));
1822  AV_WB24(buf_p + bytes, bytes);
1823  bytes += 3;
1824  }
1825  if (f->ec) {
1826  unsigned v;
1827  buf_p[bytes++] = 0;
1828  v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), f->crcref, buf_p, bytes) ^ (f->crcref ? 0x8CD88196 : 0);
1829  AV_WL32(buf_p + bytes, v);
1830  bytes += 4;
1831  }
1832  buf_p += bytes;
1833  }
1834 
1835  if (avctx->flags & AV_CODEC_FLAG_PASS1)
1836  avctx->stats_out[0] = '\0';
1837 
1838  f->picture_number++;
1839  pkt->size = buf_p - pkt->data;
1840  pkt->flags |= AV_PKT_FLAG_KEY * f->key_frame;
1841  *got_packet = 1;
1842 
1843  return 0;
1844 }
1845 
1847 {
1848  FFV1Context *const s = avctx->priv_data;
1849 
1850  for (int j = 0; j < s->max_slice_count; j++) {
1851  FFV1SliceContext *sc = &s->slices[j];
1852 
1853  for(int p = 0; p<4; p++) {
1854  av_freep(&sc->unit[p]);
1855  av_freep(&sc->bitmap[p]);
1856  }
1857  }
1858 
1859  av_freep(&avctx->stats_out);
1860  ff_ffv1_close(s);
1861 
1862  return 0;
1863 }
1864 
1865 #define OFFSET(x) offsetof(FFV1Context, x)
1866 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1867 static const AVOption options[] = {
1868  { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
1869  { "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT,
1870  { .i64 = 0 }, -2, 2, VE, .unit = "coder" },
1871  { "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST,
1872  { .i64 = AC_GOLOMB_RICE }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1873  { "range_def", "Range with default table", 0, AV_OPT_TYPE_CONST,
1874  { .i64 = AC_RANGE_DEFAULT_TAB_FORCE }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1875  { "range_tab", "Range with custom table", 0, AV_OPT_TYPE_CONST,
1876  { .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1877  { "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST,
1878  { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "coder" },
1879  { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT,
1880  { .i64 = 0 }, 0, 1, VE },
1881  { "qtable", "Quantization table", OFFSET(qtable), AV_OPT_TYPE_INT,
1882  { .i64 = -1 }, -1, 2, VE , .unit = "qtable"},
1883  { "default", NULL, 0, AV_OPT_TYPE_CONST,
1884  { .i64 = QTABLE_DEFAULT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1885  { "8bit", NULL, 0, AV_OPT_TYPE_CONST,
1886  { .i64 = QTABLE_8BIT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1887  { "greater8bit", NULL, 0, AV_OPT_TYPE_CONST,
1888  { .i64 = QTABLE_GT8BIT }, INT_MIN, INT_MAX, VE, .unit = "qtable" },
1889  { "remap_mode", "Remap Mode", OFFSET(remap_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE, .unit = "remap_mode" },
1890  { "auto", "Automatic", 0, AV_OPT_TYPE_CONST,
1891  { .i64 = -1 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1892  { "off", "Disabled", 0, AV_OPT_TYPE_CONST,
1893  { .i64 = 0 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1894  { "dualrle", "Dual RLE", 0, AV_OPT_TYPE_CONST,
1895  { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1896  { "flipdualrle", "Dual RLE", 0, AV_OPT_TYPE_CONST,
1897  { .i64 = 2 }, INT_MIN, INT_MAX, VE, .unit = "remap_mode" },
1898  { "remap_optimizer", "Remap Optimizer", OFFSET(remap_optimizer), AV_OPT_TYPE_INT, { .i64 = 3 }, 0, 5, VE, .unit = "remap_optimizer" },
1899 
1900  { NULL }
1901 };
1902 
1903 static const AVClass ffv1_class = {
1904  .class_name = "ffv1 encoder",
1905  .item_name = av_default_item_name,
1906  .option = options,
1907  .version = LIBAVUTIL_VERSION_INT,
1908 };
1909 
1911  .p.name = "ffv1",
1912  CODEC_LONG_NAME("FFmpeg video codec #1"),
1913  .p.type = AVMEDIA_TYPE_VIDEO,
1914  .p.id = AV_CODEC_ID_FFV1,
1915  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
1918  .priv_data_size = sizeof(FFV1Context),
1921  .close = encode_close,
1922  CODEC_PIXFMTS(
1946  .color_ranges = AVCOL_RANGE_MPEG,
1947  .p.priv_class = &ffv1_class,
1949 };
load_rgb_frame
static void RENAME() load_rgb_frame(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[4], int w, int h, const int stride[4])
Definition: ffv1enc_template.c:139
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:594
set_micro_version
static void set_micro_version(FFV1Context *f)
Definition: ffv1enc.c:431
CODEC_PIXFMTS
#define CODEC_PIXFMTS(...)
Definition: codec_internal.h:386
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:563
encode_init_internal
static av_cold int encode_init_internal(AVCodecContext *avctx)
Definition: ffv1enc.c:974
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:216
FFV1SliceContext::slice_height
int slice_height
Definition: ffv1.h:78
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
ff_ffv1_encode_determine_slices
int ff_ffv1_encode_determine_slices(AVCodecContext *avctx)
Definition: ffv1enc.c:566
av_clip
#define av_clip
Definition: common.h:100
update_vlc_state
static void update_vlc_state(VlcState *const state, const int v)
Definition: ffv1.h:223
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:42
r
const char * r
Definition: vf_curves.c:127
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:140
AV_WL32
#define AV_WL32(p, v)
Definition: intreadwrite.h:422
put_bytes_output
static int put_bytes_output(const PutBitContext *s)
Definition: put_bits.h:99
encode_float32_remap
static void encode_float32_remap(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[4])
Definition: ffv1enc.c:1401
log2f
#define log2f(x)
Definition: libm.h:411
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3437
FFV1SliceContext::plane
PlaneContext * plane
Definition: ffv1.h:90
FF_CODEC_CAP_EOF_FLUSH
#define FF_CODEC_CAP_EOF_FLUSH
The encoder has AV_CODEC_CAP_DELAY set, but does not actually have delay - it only wants to be flushe...
Definition: codec_internal.h:89
int64_t
long long int64_t
Definition: coverity.c:34
put_symbol_inline
static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed, uint64_t rc_stat[256][2], uint64_t rc_stat2[32][2])
Definition: ffv1enc.c:185
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static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:62
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:586
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:421
pixdesc.h
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:593
w
uint8_t w
Definition: llviddspenc.c:38
AC_RANGE_DEFAULT_TAB_FORCE
#define AC_RANGE_DEFAULT_TAB_FORCE
Definition: ffv1.h:55
AVPacket::data
uint8_t * data
Definition: packet.h:552
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:588
AVOption
AVOption.
Definition: opt.h:429
encode.h
b
#define b
Definition: input.c:42
MAX_QUANT_TABLE_SIZE
#define MAX_QUANT_TABLE_SIZE
Definition: ffv1.h:48
rangecoder.h
AVComponentDescriptor::step
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:40
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:537
ff_ffv1_write_extradata
av_cold int ff_ffv1_write_extradata(AVCodecContext *avctx)
Definition: ffv1enc.c:447
FFCodec
Definition: codec_internal.h:127
FFV1SliceContext::pb
PutBitContext pb
Definition: ffv1.h:91
RangeCoder::bytestream_end
uint8_t * bytestream_end
Definition: rangecoder.h:44
contains_non_128
static int contains_non_128(uint8_t(*initial_state)[CONTEXT_SIZE], int nb_contexts)
Definition: ffv1enc.c:372
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
FF_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: defs.h:62
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
av_float2int
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
AC_RANGE_CUSTOM_TAB
#define AC_RANGE_CUSTOM_TAB
Definition: ffv1.h:54
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:589
ring_size
static int ring_size(RingBuffer *ring)
Definition: async.c:105
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:607
QTABLE_GT8BIT
@ QTABLE_GT8BIT
Definition: ffv1enc.h:31
FF_INPUT_BUFFER_MIN_SIZE
#define FF_INPUT_BUFFER_MIN_SIZE
Used by some encoders as upper bound for the length of headers.
Definition: encode.h:33
FFV1SliceContext::slice_x
int slice_x
Definition: ffv1.h:79
put_symbol
static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed)
Definition: ffv1enc.c:233
ff_ffv1_clear_slice_state
void ff_ffv1_clear_slice_state(const FFV1Context *f, FFV1SliceContext *sc)
Definition: ffv1.c:198
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:516
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:442
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
AV_FRAME_FLAG_TOP_FIELD_FIRST
#define AV_FRAME_FLAG_TOP_FIELD_FIRST
A flag to mark frames where the top field is displayed first if the content is interlaced.
Definition: frame.h:649
crc.h
ff_ffv1_init_slices_state
av_cold int ff_ffv1_init_slices_state(FFV1Context *f)
Definition: ffv1.c:110
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:585
write_quant_tables
static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][MAX_QUANT_TABLE_SIZE])
Definition: ffv1enc.c:364
quant11
static const int8_t quant11[256]
Definition: ffv1enc.c:102
load_plane
static void load_plane(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src, int w, int h, int stride, int remap_index, int pixel_stride)
Definition: ffv1enc.c:325
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:131
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:558
u
#define u(width, name, range_min, range_max)
Definition: cbs_apv.c:83
QTABLE_8BIT
@ QTABLE_8BIT
Definition: ffv1enc.h:30
ff_init_range_encoder
av_cold void ff_init_range_encoder(RangeCoder *c, uint8_t *buf, int buf_size)
Definition: rangecoder.c:42
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:556
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:595
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:535
encode_slice
static int encode_slice(AVCodecContext *c, void *arg)
Definition: ffv1enc.c:1560
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:488
val
static double val(void *priv, double ch)
Definition: aeval.c:77
av_pix_fmt_get_chroma_sub_sample
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:3465
AV_PIX_FMT_GRAYF16
#define AV_PIX_FMT_GRAYF16
Definition: pixfmt.h:579
av_noinline
#define av_noinline
Definition: attributes.h:72
update
static av_always_inline void update(SilenceDetectContext *s, AVFrame *insamples, int is_silence, int current_sample, int64_t nb_samples_notify, AVRational time_base)
Definition: af_silencedetect.c:78
NB_Y_COEFF
#define NB_Y_COEFF
MAX_SLICES
#define MAX_SLICES
Definition: d3d12va_hevc.c:33
CONTEXT_SIZE
#define CONTEXT_SIZE
Definition: ffv1.h:45
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:520
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:353
PlaneContext::context_count
int context_count
Definition: ffv1.h:66
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:540
avassert.h
put_golomb.h
exp golomb vlc writing stuff
pkt
AVPacket * pkt
Definition: movenc.c:60
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:210
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:549
FFV1SliceContext::sample_buffer
int16_t * sample_buffer
Definition: ffv1.h:74
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:560
s
#define s(width, name)
Definition: cbs_vp9.c:198
MAX_PLANES
#define MAX_PLANES
Definition: ffv1.h:44
AVCodecContext::stats_in
char * stats_in
pass2 encoding statistics input buffer Concatenated stuff from stats_out of pass1 should be placed he...
Definition: avcodec.h:1320
AV_PIX_FMT_GBRAP14
#define AV_PIX_FMT_GBRAP14
Definition: pixfmt.h:562
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:561
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:550
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
g
const char * g
Definition: vf_curves.c:128
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
FLIP
#define FLIP(f)
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
This encoder can reorder user opaque values from input AVFrames and return them with corresponding ou...
Definition: codec.h:144
bits
uint8_t bits
Definition: vp3data.h:128
AC_RANGE_DEFAULT_TAB
#define AC_RANGE_DEFAULT_TAB
Definition: ffv1.h:53
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:41
quant5
static const int8_t quant5[256]
Definition: ffv1enc.c:64
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:592
AVCodecContext::bits_per_raw_sample
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1553
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:534
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:231
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:548
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
FFV1SliceContext::rc_stat2
uint64_t(*[MAX_QUANT_TABLES] rc_stat2)[32][2]
Definition: ffv1.h:106
encode_float32_remap_segment
static int encode_float32_remap_segment(FFV1SliceContext *sc, int p, int mul_count, int *mul_tab, int update, int final)
Definition: ffv1enc.c:1286
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:519
fold
static av_always_inline int fold(int diff, int bits)
Definition: ffv1.h:212
ff_ffv1_encode_setup_plane_info
av_cold int ff_ffv1_encode_setup_plane_info(AVCodecContext *avctx, enum AVPixelFormat pix_fmt)
Definition: ffv1enc.c:801
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
PutBitContext
Definition: put_bits.h:50
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:326
sort_stt
static int sort_stt(FFV1Context *s, uint8_t stt[256])
Definition: ffv1enc.c:517
ver2_state
static const uint8_t ver2_state[256]
Definition: ffv1enc.c:121
arg
const char * arg
Definition: jacosubdec.c:67
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:74
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:517
if
if(ret)
Definition: filter_design.txt:179
encode_frame
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: ffv1enc.c:1705
encode_close
static av_cold int encode_close(AVCodecContext *avctx)
Definition: ffv1enc.c:1846
quant_table
static const int16_t quant_table[64]
Definition: intrax8.c:511
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:559
QTABLE_DEFAULT
@ QTABLE_DEFAULT
Definition: ffv1enc.h:29
AV_PIX_FMT_RGBA64
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:527
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
FFV1SliceContext::sx
int sx
Definition: ffv1.h:81
ff_need_new_slices
int ff_need_new_slices(int width, int num_h_slices, int chroma_shift)
Definition: ffv1.c:120
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:76
NULL
#define NULL
Definition: coverity.c:32
AC_GOLOMB_RICE
#define AC_GOLOMB_RICE
Definition: ffv1.h:52
CMP
#define CMP(A, B)
run
uint8_t run
Definition: svq3.c:207
FFV1SliceContext::unit
struct FFV1SliceContext::Unit * unit[4]
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:200
FFV1SliceContext::Unit::val
uint32_t val
Definition: ffv1.h:117
ff_rac_terminate
int ff_rac_terminate(RangeCoder *c, int version)
Terminates the range coder.
Definition: rangecoder.c:109
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:240
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:539
options
Definition: swscale.c:43
PlaneContext
Definition: ffv1.h:64
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:538
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:555
AVCodecContext::level
int level
Encoding level descriptor.
Definition: avcodec.h:1628
AV_PIX_FMT_GBRPF16
#define AV_PIX_FMT_GBRPF16
Definition: pixfmt.h:574
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
VlcState
Definition: ffv1.h:57
VE
#define VE
Definition: ffv1enc.c:1866
ff_dlog
#define ff_dlog(a,...)
Definition: tableprint_vlc.h:28
FFV1SliceContext::slice_width
int slice_width
Definition: ffv1.h:77
options
static const AVOption options[]
Definition: ffv1enc.c:1867
AVCodecContext::stats_out
char * stats_out
pass1 encoding statistics output buffer
Definition: avcodec.h:1312
AV_CODEC_ID_FFV1
@ AV_CODEC_ID_FFV1
Definition: codec_id.h:85
qsort.h
f
f
Definition: af_crystalizer.c:122
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:368
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
choose_rct_params
static void choose_rct_params(const FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[3], const int stride[3], int w, int h)
Definition: ffv1enc.c:1104
flip
static void flip(AVCodecContext *avctx, AVFrame *frame)
Definition: rawdec.c:131
AVPacket::size
int size
Definition: packet.h:553
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1005
height
#define height
Definition: dsp.h:89
FFV1SliceContext::bitmap
uint32_t * bitmap[4]
Definition: ffv1.h:111
codec_internal.h
quant9_10bit
static const int8_t quant9_10bit[256]
Definition: ffv1enc.c:83
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:424
print
static void print(AVTreeNode *t, int depth)
Definition: tree.c:45
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:576
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:542
sample
#define sample
Definition: flacdsp_template.c:44
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:523
size
int size
Definition: twinvq_data.h:10344
ff_build_rac_states
void ff_build_rac_states(RangeCoder *c, int factor, int max_p)
Definition: rangecoder.c:68
STATS_OUT_SIZE
#define STATS_OUT_SIZE
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:544
AV_WB24
#define AV_WB24(p, d)
Definition: intreadwrite.h:446
encode_plane
static int encode_plane(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src, int w, int h, int stride, int plane_index, int remap_index, int pixel_stride, int ac)
Definition: ffv1enc.c:274
AV_PIX_FMT_NV16
@ AV_PIX_FMT_NV16
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:198
RangeCoder::bytestream
uint8_t * bytestream
Definition: rangecoder.h:43
AV_CODEC_FLAG_PASS2
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:294
AV_PIX_FMT_RGB32
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:509
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
FFV1SliceContext::slice_rct_by_coef
int slice_rct_by_coef
Definition: ffv1.h:85
av_crc_get_table
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
Definition: crc.c:374
AV_CODEC_CAP_SLICE_THREADS
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: codec.h:99
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:590
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
find_best_state
static void find_best_state(uint8_t best_state[256][256], const uint8_t one_state[256])
Definition: ffv1enc.c:140
attributes.h
FFV1SliceContext::rc_stat
uint64_t rc_stat[256][2]
Definition: ffv1.h:105
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:558
AV_PIX_FMT_P216
#define AV_PIX_FMT_P216
Definition: pixfmt.h:618
PlaneContext::quant_table_index
int quant_table_index
Definition: ffv1.h:65
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:221
FFV1SliceContext::c
RangeCoder c
Definition: ffv1.h:92
put_vlc_symbol
static void put_vlc_symbol(PutBitContext *pb, VlcState *const state, int v, int bits)
Definition: ffv1enc.c:240
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:68
ffv1_class
static const AVClass ffv1_class
Definition: ffv1enc.c:1903
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:178
AV_QSORT
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
Definition: qsort.h:33
planes
static const struct @511 planes[]
round
static av_always_inline av_const double round(double x)
Definition: libm.h:446
FFV1SliceContext::slice_rct_ry_coef
int slice_rct_ry_coef
Definition: ffv1.h:86
av_flatten
#define av_flatten
Definition: attributes.h:96
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:557
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
AV_PIX_FMT_NV24
@ AV_PIX_FMT_NV24
planar YUV 4:4:4, 24bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:371
FFV1SliceContext::remap_count
int remap_count[4]
Definition: ffv1.h:109
encode_rgb_frame
static int RENAME() encode_rgb_frame(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[4], int w, int h, const int stride[4], int ac)
Definition: ffv1enc_template.c:174
delta
float delta
Definition: vorbis_enc_data.h:430
av_always_inline
#define av_always_inline
Definition: attributes.h:49
ff_ffv1_common_init
av_cold int ff_ffv1_common_init(AVCodecContext *avctx, FFV1Context *s)
Definition: ffv1.c:36
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ffv1.h
FFV1SliceContext::sample_buffer32
int32_t * sample_buffer32
Definition: ffv1.h:75
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:256
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:179
FFV1SliceContext
Definition: ffv1.h:73
len
int len
Definition: vorbis_enc_data.h:426
AV_CRC_32_IEEE
@ AV_CRC_32_IEEE
Definition: crc.h:52
AVCodecContext::height
int height
Definition: avcodec.h:592
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:631
write_quant_table
static void write_quant_table(RangeCoder *c, int16_t *quant_table)
Definition: ffv1enc.c:349
AV_FRAME_FLAG_INTERLACED
#define AV_FRAME_FLAG_INTERLACED
A flag to mark frames whose content is interlaced.
Definition: frame.h:644
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:748
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:536
load_rgb_float32_frame
static void load_rgb_float32_frame(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[4], int w, int h, const int stride[4])
Definition: ffv1enc.c:1234
MAX_CONTEXT_INPUTS
#define MAX_CONTEXT_INPUTS
Definition: ffv1.h:50
log2
#define log2(x)
Definition: libm.h:406
AV_PIX_FMT_P016
#define AV_PIX_FMT_P016
Definition: pixfmt.h:602
avcodec.h
stride
#define stride
Definition: h264pred_template.c:536
FFV1SliceContext::fltmap
uint16_t * fltmap[4]
Definition: ffv1.h:112
AV_PIX_FMT_YAF16
#define AV_PIX_FMT_YAF16
Definition: pixfmt.h:582
av_uninit
#define av_uninit(x)
Definition: attributes.h:154
ret
ret
Definition: filter_design.txt:187
pred
static const float pred[4]
Definition: siprdata.h:259
AV_PIX_FMT_NV12
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:96
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:81
ff_ffv1_encode_buffer_size
size_t ff_ffv1_encode_buffer_size(AVCodecContext *avctx)
Definition: ffv1enc.c:1683
AV_PIX_FMT_0RGB32
#define AV_PIX_FMT_0RGB32
Definition: pixfmt.h:513
quant5_10bit
static const int8_t quant5_10bit[256]
Definition: ffv1enc.c:45
FFV1SliceContext::slice_y
int slice_y
Definition: ffv1.h:80
AVCodecContext::strict_std_compliance
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1357
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:587
FFV1SliceContext::Unit::ndx
uint32_t ndx
Definition: ffv1.h:118
set_sr_golomb
static void set_sr_golomb(PutBitContext *pb, int i, int k, int limit, int esc_len)
write signed golomb rice code (ffv1).
Definition: put_golomb.h:143
ff_ffv1_close
av_cold void ff_ffv1_close(FFV1Context *s)
Definition: ffv1.c:264
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:541
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
put_rac
#define put_rac(C, S, B)
U
#define U(x)
Definition: vpx_arith.h:37
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:546
ff_ffv1_allocate_initial_states
int ff_ffv1_allocate_initial_states(FFV1Context *f)
Definition: ffv1.c:183
AVCodecContext
main external API structure.
Definition: avcodec.h:431
RangeCoder::bytestream_start
uint8_t * bytestream_start
Definition: rangecoder.h:42
AVCodecContext::execute
int(* execute)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size)
The codec may call this to execute several independent things.
Definition: avcodec.h:1591
av_crc
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
Definition: crc.c:392
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:591
OFFSET
#define OFFSET(x)
Definition: ffv1enc.c:1865
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:577
FFV1SliceContext::remap
int remap
Definition: ffv1.h:87
AV_PIX_FMT_GBRAPF16
#define AV_PIX_FMT_GBRAPF16
Definition: pixfmt.h:575
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
get_rac_count
static int get_rac_count(RangeCoder *c)
Definition: rangecoder.h:79
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:76
FFV1SliceContext::sy
int sy
Definition: ffv1.h:81
ffv1enc.h
COST2
#define COST2(old, new)
av_clip_uint8
#define av_clip_uint8
Definition: common.h:106
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
ffv1enc_template.c
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:200
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
mem.h
state
static struct @510 state
flush_put_bits
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:153
ff_ffv1_encode_init
av_cold int ff_ffv1_encode_init(AVCodecContext *avctx)
Definition: ffv1enc.c:601
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FFV1Context
Definition: ffv1.h:122
AVCodecContext::slices
int slices
Number of slices.
Definition: avcodec.h:1021
AVPacket
This structure stores compressed data.
Definition: packet.h:529
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:458
AV_PIX_FMT_P416
#define AV_PIX_FMT_P416
Definition: pixfmt.h:619
FFV1SliceContext::run_index
int run_index
Definition: ffv1.h:83
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:592
ff_ffv1_init_slice_contexts
av_cold int ff_ffv1_init_slice_contexts(FFV1Context *f)
Definition: ffv1.c:140
encode_histogram_remap
static void encode_histogram_remap(FFV1Context *f, FFV1SliceContext *sc)
Definition: ffv1enc.c:1199
int32_t
int32_t
Definition: audioconvert.c:56
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:466
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:543
h
h
Definition: vp9dsp_template.c:2070
RangeCoder
Definition: mss3.c:63
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:547
ff_ffv1_encoder
const FFCodec ff_ffv1_encoder
Definition: ffv1enc.c:1910
width
#define width
Definition: dsp.h:89
write_header
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:384
RENAME
#define RENAME(name)
Definition: ffv1enc.c:271
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:518
FFV1SliceContext::ac_byte_count
int ac_byte_count
number of bytes used for AC coding
Definition: ffv1.h:94
put_bits.h
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition: opt.h:299
snprintf
#define snprintf
Definition: snprintf.h:34
av_log2
int av_log2(unsigned v)
Definition: intmath.c:26
FFV1SliceContext::slice_coding_mode
int slice_coding_mode
Definition: ffv1.h:84
ff_alloc_packet
int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and allocate data.
Definition: encode.c:62
ff_ffv1_compute_bits_per_plane
void ff_ffv1_compute_bits_per_plane(const FFV1Context *f, FFV1SliceContext *sc, int bits[4], int *offset, int mask[4], int bits_per_raw_sample)
Definition: ffv1.c:222
src
#define src
Definition: vp8dsp.c:248
encode_line
static av_always_inline int RENAME() encode_line(FFV1Context *f, FFV1SliceContext *sc, void *logctx, int w, TYPE *const sample[3], int plane_index, int bits, int ac, int pass1)
Definition: ffv1enc_template.c:26
encode_float32_rgb_frame
static int encode_float32_rgb_frame(FFV1Context *f, FFV1SliceContext *sc, const uint8_t *src[4], int w, int h, const int stride[4], int ac)
Definition: ffv1enc.c:1499
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:545
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:3357
AV_CODEC_FLAG_PASS1
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:290
encode_slice_header
static void encode_slice_header(FFV1Context *f, FFV1SliceContext *sc)
Definition: ffv1enc.c:1070