FFmpeg
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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/opt.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/timer.h"
35 
36 #include "avcodec.h"
37 #include "internal.h"
38 #include "put_bits.h"
39 #include "rangecoder.h"
40 #include "golomb.h"
41 #include "mathops.h"
42 #include "ffv1.h"
43 
44 static const int8_t quant5_10bit[256] = {
45  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
46  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
47  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
48  1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
49  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
50  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
51  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
52  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
53  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
54  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
55  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
56  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
57  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1,
58  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
59  -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
60  -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0,
61 };
62 
63 static const int8_t quant5[256] = {
64  0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
65  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
66  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
67  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
68  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
69  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
70  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
71  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
72  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
73  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
74  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
75  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
76  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
77  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
78  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
79  -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1,
80 };
81 
82 static const int8_t quant9_10bit[256] = {
83  0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
84  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
85  3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
86  3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
87  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
88  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
89  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
90  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
91  -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
92  -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
93  -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
94  -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
95  -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3,
96  -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3,
97  -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
98  -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0,
99 };
100 
101 static const int8_t quant11[256] = {
102  0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
103  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
104  4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
105  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
106  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
107  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
108  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
109  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
110  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
111  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
112  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
113  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
114  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
115  -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4,
116  -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
117  -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1,
118 };
119 
120 static const uint8_t ver2_state[256] = {
121  0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49,
122  59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39,
123  40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52,
124  53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69,
125  87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97,
126  85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98,
127  105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125,
128  115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129,
129  165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148,
130  147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160,
131  172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178,
132  175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196,
133  197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214,
134  209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225,
135  226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242,
136  241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255,
137 };
138 
139 static void find_best_state(uint8_t best_state[256][256],
140  const uint8_t one_state[256])
141 {
142  int i, j, k, m;
143  double l2tab[256];
144 
145  for (i = 1; i < 256; i++)
146  l2tab[i] = log2(i / 256.0);
147 
148  for (i = 0; i < 256; i++) {
149  double best_len[256];
150  double p = i / 256.0;
151 
152  for (j = 0; j < 256; j++)
153  best_len[j] = 1 << 30;
154 
155  for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) {
156  double occ[256] = { 0 };
157  double len = 0;
158  occ[j] = 1.0;
159 
160  if (!one_state[j])
161  continue;
162 
163  for (k = 0; k < 256; k++) {
164  double newocc[256] = { 0 };
165  for (m = 1; m < 256; m++)
166  if (occ[m]) {
167  len -=occ[m]*( p *l2tab[ m]
168  + (1-p)*l2tab[256-m]);
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] * p;
177  newocc[256 - one_state[256 - m]] += occ[m] * (1 - p);
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 int a = FFABS(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 
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 <= 13);
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 
261  update_vlc_state(state, v);
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 
274 static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
275  int stride, int plane_index, int pixel_stride)
276 {
277  int x, y, i, ret;
278  const int ring_size = s->context_model ? 3 : 2;
279  int16_t *sample[3];
280  s->run_index = 0;
281 
282  memset(s->sample_buffer, 0, ring_size * (w + 6) * sizeof(*s->sample_buffer));
283 
284  for (y = 0; y < h; y++) {
285  for (i = 0; i < ring_size; i++)
286  sample[i] = s->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3;
287 
288  sample[0][-1]= sample[1][0 ];
289  sample[1][ w]= sample[1][w-1];
290 // { START_TIMER
291  if (s->bits_per_raw_sample <= 8) {
292  for (x = 0; x < w; x++)
293  sample[0][x] = src[x * pixel_stride + stride * y];
294  if((ret = encode_line(s, w, sample, plane_index, 8)) < 0)
295  return ret;
296  } else {
297  if (s->packed_at_lsb) {
298  for (x = 0; x < w; x++) {
299  sample[0][x] = ((uint16_t*)(src + stride*y))[x];
300  }
301  } else {
302  for (x = 0; x < w; x++) {
303  sample[0][x] = ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample);
304  }
305  }
306  if((ret = encode_line(s, w, sample, plane_index, s->bits_per_raw_sample)) < 0)
307  return ret;
308  }
309 // STOP_TIMER("encode line") }
310  }
311  return 0;
312 }
313 
314 static void write_quant_table(RangeCoder *c, int16_t *quant_table)
315 {
316  int last = 0;
317  int i;
319  memset(state, 128, sizeof(state));
320 
321  for (i = 1; i < 128; i++)
322  if (quant_table[i] != quant_table[i - 1]) {
323  put_symbol(c, state, i - last - 1, 0);
324  last = i;
325  }
326  put_symbol(c, state, i - last - 1, 0);
327 }
328 
330  int16_t quant_table[MAX_CONTEXT_INPUTS][256])
331 {
332  int i;
333  for (i = 0; i < 5; i++)
335 }
336 
338 {
340  int i, j;
341  RangeCoder *const c = &f->slice_context[0]->c;
342 
343  memset(state, 128, sizeof(state));
344 
345  if (f->version < 2) {
346  put_symbol(c, state, f->version, 0);
347  put_symbol(c, state, f->ac, 0);
348  if (f->ac == AC_RANGE_CUSTOM_TAB) {
349  for (i = 1; i < 256; i++)
350  put_symbol(c, state,
351  f->state_transition[i] - c->one_state[i], 1);
352  }
353  put_symbol(c, state, f->colorspace, 0); //YUV cs type
354  if (f->version > 0)
355  put_symbol(c, state, f->bits_per_raw_sample, 0);
356  put_rac(c, state, f->chroma_planes);
357  put_symbol(c, state, f->chroma_h_shift, 0);
358  put_symbol(c, state, f->chroma_v_shift, 0);
359  put_rac(c, state, f->transparency);
360 
362  } else if (f->version < 3) {
363  put_symbol(c, state, f->slice_count, 0);
364  for (i = 0; i < f->slice_count; i++) {
365  FFV1Context *fs = f->slice_context[i];
366  put_symbol(c, state,
367  (fs->slice_x + 1) * f->num_h_slices / f->width, 0);
368  put_symbol(c, state,
369  (fs->slice_y + 1) * f->num_v_slices / f->height, 0);
370  put_symbol(c, state,
371  (fs->slice_width + 1) * f->num_h_slices / f->width - 1,
372  0);
373  put_symbol(c, state,
374  (fs->slice_height + 1) * f->num_v_slices / f->height - 1,
375  0);
376  for (j = 0; j < f->plane_count; j++) {
377  put_symbol(c, state, f->plane[j].quant_table_index, 0);
379  }
380  }
381  }
382 }
383 
385 {
386  RangeCoder *const c = &f->c;
388  int i, j, k;
389  uint8_t state2[32][CONTEXT_SIZE];
390  unsigned v;
391 
392  memset(state2, 128, sizeof(state2));
393  memset(state, 128, sizeof(state));
394 
395  f->avctx->extradata_size = 10000 + 4 +
396  (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32;
398  if (!f->avctx->extradata)
399  return AVERROR(ENOMEM);
401  ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
402 
403  put_symbol(c, state, f->version, 0);
404  if (f->version > 2) {
405  if (f->version == 3) {
406  f->micro_version = 4;
407  } else if (f->version == 4)
408  f->micro_version = 2;
409  put_symbol(c, state, f->micro_version, 0);
410  }
411 
412  put_symbol(c, state, f->ac, 0);
413  if (f->ac == AC_RANGE_CUSTOM_TAB)
414  for (i = 1; i < 256; i++)
415  put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
416 
417  put_symbol(c, state, f->colorspace, 0); // YUV cs type
418  put_symbol(c, state, f->bits_per_raw_sample, 0);
419  put_rac(c, state, f->chroma_planes);
420  put_symbol(c, state, f->chroma_h_shift, 0);
421  put_symbol(c, state, f->chroma_v_shift, 0);
422  put_rac(c, state, f->transparency);
423  put_symbol(c, state, f->num_h_slices - 1, 0);
424  put_symbol(c, state, f->num_v_slices - 1, 0);
425 
426  put_symbol(c, state, f->quant_table_count, 0);
427  for (i = 0; i < f->quant_table_count; i++)
429 
430  for (i = 0; i < f->quant_table_count; i++) {
431  for (j = 0; j < f->context_count[i] * CONTEXT_SIZE; j++)
432  if (f->initial_states[i] && f->initial_states[i][0][j] != 128)
433  break;
434  if (j < f->context_count[i] * CONTEXT_SIZE) {
435  put_rac(c, state, 1);
436  for (j = 0; j < f->context_count[i]; j++)
437  for (k = 0; k < CONTEXT_SIZE; k++) {
438  int pred = j ? f->initial_states[i][j - 1][k] : 128;
439  put_symbol(c, state2[k],
440  (int8_t)(f->initial_states[i][j][k] - pred), 1);
441  }
442  } else {
443  put_rac(c, state, 0);
444  }
445  }
446 
447  if (f->version > 2) {
448  put_symbol(c, state, f->ec, 0);
449  put_symbol(c, state, f->intra = (f->avctx->gop_size < 2), 0);
450  }
451 
455  f->avctx->extradata_size += 4;
456 
457  return 0;
458 }
459 
460 static int sort_stt(FFV1Context *s, uint8_t stt[256])
461 {
462  int i, i2, changed, print = 0;
463 
464  do {
465  changed = 0;
466  for (i = 12; i < 244; i++) {
467  for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) {
468 
469 #define COST(old, new) \
470  s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \
471  s->rc_stat[old][1] * -log2((new) / 256.0)
472 
473 #define COST2(old, new) \
474  COST(old, new) + COST(256 - (old), 256 - (new))
475 
476  double size0 = COST2(i, i) + COST2(i2, i2);
477  double sizeX = COST2(i, i2) + COST2(i2, i);
478  if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) {
479  int j;
480  FFSWAP(int, stt[i], stt[i2]);
481  FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]);
482  FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]);
483  if (i != 256 - i2) {
484  FFSWAP(int, stt[256 - i], stt[256 - i2]);
485  FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]);
486  FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]);
487  }
488  for (j = 1; j < 256; j++) {
489  if (stt[j] == i)
490  stt[j] = i2;
491  else if (stt[j] == i2)
492  stt[j] = i;
493  if (i != 256 - i2) {
494  if (stt[256 - j] == 256 - i)
495  stt[256 - j] = 256 - i2;
496  else if (stt[256 - j] == 256 - i2)
497  stt[256 - j] = 256 - i;
498  }
499  }
500  print = changed = 1;
501  }
502  }
503  }
504  } while (changed);
505  return print;
506 }
507 
509 {
510  FFV1Context *s = avctx->priv_data;
512  int i, j, k, m, ret;
513 
514  if ((ret = ff_ffv1_common_init(avctx)) < 0)
515  return ret;
516 
517  s->version = 0;
518 
519  if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) ||
520  avctx->slices > 1)
521  s->version = FFMAX(s->version, 2);
522 
523  // Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability
524  if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576)
525  s->version = FFMAX(s->version, 2);
526 
527  if (avctx->level <= 0 && s->version == 2) {
528  s->version = 3;
529  }
530  if (avctx->level >= 0 && avctx->level <= 4) {
531  if (avctx->level < s->version) {
532  av_log(avctx, AV_LOG_ERROR, "Version %d needed for requested features but %d requested\n", s->version, avctx->level);
533  return AVERROR(EINVAL);
534  }
535  s->version = avctx->level;
536  }
537 
538  if (s->ec < 0) {
539  s->ec = (s->version >= 3);
540  }
541 
542  // CRC requires version 3+
543  if (s->ec)
544  s->version = FFMAX(s->version, 3);
545 
546  if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
547  av_log(avctx, AV_LOG_ERROR, "Version 2 needed for requested features but version 2 is experimental and not enabled\n");
548  return AVERROR_INVALIDDATA;
549  }
550 
551 #if FF_API_CODER_TYPE
553  if (avctx->coder_type != -1)
554  s->ac = avctx->coder_type > 0 ? AC_RANGE_CUSTOM_TAB : AC_GOLOMB_RICE;
555  else
557 #endif
558  if (s->ac == 1) // Compatbility with common command line usage
559  s->ac = AC_RANGE_CUSTOM_TAB;
560  else if (s->ac == AC_RANGE_DEFAULT_TAB_FORCE)
562 
563  s->plane_count = 3;
564  switch(avctx->pix_fmt) {
565  case AV_PIX_FMT_GRAY9:
566  case AV_PIX_FMT_YUV444P9:
567  case AV_PIX_FMT_YUV422P9:
568  case AV_PIX_FMT_YUV420P9:
572  if (!avctx->bits_per_raw_sample)
573  s->bits_per_raw_sample = 9;
574  case AV_PIX_FMT_GRAY10:
582  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
583  s->bits_per_raw_sample = 10;
584  case AV_PIX_FMT_GRAY12:
589  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
590  s->bits_per_raw_sample = 12;
594  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
595  s->bits_per_raw_sample = 14;
596  s->packed_at_lsb = 1;
597  case AV_PIX_FMT_GRAY16:
604  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
605  s->bits_per_raw_sample = 16;
606  } else if (!s->bits_per_raw_sample) {
608  }
609  if (s->bits_per_raw_sample <= 8) {
610  av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n");
611  return AVERROR_INVALIDDATA;
612  }
613  s->version = FFMAX(s->version, 1);
614  case AV_PIX_FMT_GRAY8:
615  case AV_PIX_FMT_YA8:
616  case AV_PIX_FMT_YUV444P:
617  case AV_PIX_FMT_YUV440P:
618  case AV_PIX_FMT_YUV422P:
619  case AV_PIX_FMT_YUV420P:
620  case AV_PIX_FMT_YUV411P:
621  case AV_PIX_FMT_YUV410P:
622  case AV_PIX_FMT_YUVA444P:
623  case AV_PIX_FMT_YUVA422P:
624  case AV_PIX_FMT_YUVA420P:
625  s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
626  s->colorspace = 0;
627  s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
628  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
629  s->bits_per_raw_sample = 8;
630  else if (!s->bits_per_raw_sample)
631  s->bits_per_raw_sample = 8;
632  break;
633  case AV_PIX_FMT_RGB32:
634  s->colorspace = 1;
635  s->transparency = 1;
636  s->chroma_planes = 1;
637  s->bits_per_raw_sample = 8;
638  break;
639  case AV_PIX_FMT_RGBA64:
640  s->colorspace = 1;
641  s->transparency = 1;
642  s->chroma_planes = 1;
643  s->bits_per_raw_sample = 16;
644  s->use32bit = 1;
645  s->version = FFMAX(s->version, 1);
646  break;
647  case AV_PIX_FMT_RGB48:
648  s->colorspace = 1;
649  s->chroma_planes = 1;
650  s->bits_per_raw_sample = 16;
651  s->use32bit = 1;
652  s->version = FFMAX(s->version, 1);
653  break;
654  case AV_PIX_FMT_0RGB32:
655  s->colorspace = 1;
656  s->chroma_planes = 1;
657  s->bits_per_raw_sample = 8;
658  break;
659  case AV_PIX_FMT_GBRP9:
660  if (!avctx->bits_per_raw_sample)
661  s->bits_per_raw_sample = 9;
662  case AV_PIX_FMT_GBRP10:
663  case AV_PIX_FMT_GBRAP10:
664  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
665  s->bits_per_raw_sample = 10;
666  case AV_PIX_FMT_GBRP12:
667  case AV_PIX_FMT_GBRAP12:
668  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
669  s->bits_per_raw_sample = 12;
670  case AV_PIX_FMT_GBRP14:
671  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
672  s->bits_per_raw_sample = 14;
673  case AV_PIX_FMT_GBRP16:
674  case AV_PIX_FMT_GBRAP16:
675  if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
676  s->bits_per_raw_sample = 16;
677  else if (!s->bits_per_raw_sample)
679  s->transparency = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
680  s->colorspace = 1;
681  s->chroma_planes = 1;
682  if (s->bits_per_raw_sample >= 16) {
683  s->use32bit = 1;
684  }
685  s->version = FFMAX(s->version, 1);
686  break;
687  default:
688  av_log(avctx, AV_LOG_ERROR, "format not supported\n");
689  return AVERROR(ENOSYS);
690  }
692 
693  if (s->bits_per_raw_sample > 8) {
694  if (s->ac == AC_GOLOMB_RICE) {
695  av_log(avctx, AV_LOG_INFO,
696  "bits_per_raw_sample > 8, forcing range coder\n");
697  s->ac = AC_RANGE_CUSTOM_TAB;
698  }
699  }
700 #if FF_API_PRIVATE_OPT
702  if (avctx->context_model)
703  s->context_model = avctx->context_model;
704  if (avctx->context_model > 1U) {
705  av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model);
706  return AVERROR(EINVAL);
707  }
709 #endif
710 
711  if (s->ac == AC_RANGE_CUSTOM_TAB) {
712  for (i = 1; i < 256; i++)
713  s->state_transition[i] = ver2_state[i];
714  } else {
715  RangeCoder c;
716  ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
717  for (i = 1; i < 256; i++)
718  s->state_transition[i] = c.one_state[i];
719  }
720 
721  for (i = 0; i < 256; i++) {
722  s->quant_table_count = 2;
723  if (s->bits_per_raw_sample <= 8) {
724  s->quant_tables[0][0][i]= quant11[i];
725  s->quant_tables[0][1][i]= 11*quant11[i];
726  s->quant_tables[0][2][i]= 11*11*quant11[i];
727  s->quant_tables[1][0][i]= quant11[i];
728  s->quant_tables[1][1][i]= 11*quant11[i];
729  s->quant_tables[1][2][i]= 11*11*quant5 [i];
730  s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
731  s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
732  } else {
733  s->quant_tables[0][0][i]= quant9_10bit[i];
734  s->quant_tables[0][1][i]= 11*quant9_10bit[i];
735  s->quant_tables[0][2][i]= 11*11*quant9_10bit[i];
736  s->quant_tables[1][0][i]= quant9_10bit[i];
737  s->quant_tables[1][1][i]= 11*quant9_10bit[i];
738  s->quant_tables[1][2][i]= 11*11*quant5_10bit[i];
739  s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i];
740  s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i];
741  }
742  }
743  s->context_count[0] = (11 * 11 * 11 + 1) / 2;
744  s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
745  memcpy(s->quant_table, s->quant_tables[s->context_model],
746  sizeof(s->quant_table));
747 
748  for (i = 0; i < s->plane_count; i++) {
749  PlaneContext *const p = &s->plane[i];
750 
751  memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
754  }
755 
756  if ((ret = ff_ffv1_allocate_initial_states(s)) < 0)
757  return ret;
758 
759 #if FF_API_CODED_FRAME
763 #endif
764 
765  if (!s->transparency)
766  s->plane_count = 2;
767  if (!s->chroma_planes && s->version > 3)
768  s->plane_count--;
769 
771  if (ret)
772  return ret;
773 
774  s->picture_number = 0;
775 
776  if (avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) {
777  for (i = 0; i < s->quant_table_count; i++) {
778  s->rc_stat2[i] = av_mallocz(s->context_count[i] *
779  sizeof(*s->rc_stat2[i]));
780  if (!s->rc_stat2[i])
781  return AVERROR(ENOMEM);
782  }
783  }
784  if (avctx->stats_in) {
785  char *p = avctx->stats_in;
786  uint8_t (*best_state)[256] = av_malloc_array(256, 256);
787  int gob_count = 0;
788  char *next;
789  if (!best_state)
790  return AVERROR(ENOMEM);
791 
792  av_assert0(s->version >= 2);
793 
794  for (;;) {
795  for (j = 0; j < 256; j++)
796  for (i = 0; i < 2; i++) {
797  s->rc_stat[j][i] = strtol(p, &next, 0);
798  if (next == p) {
799  av_log(avctx, AV_LOG_ERROR,
800  "2Pass file invalid at %d %d [%s]\n", j, i, p);
801  av_freep(&best_state);
802  return AVERROR_INVALIDDATA;
803  }
804  p = next;
805  }
806  for (i = 0; i < s->quant_table_count; i++)
807  for (j = 0; j < s->context_count[i]; j++) {
808  for (k = 0; k < 32; k++)
809  for (m = 0; m < 2; m++) {
810  s->rc_stat2[i][j][k][m] = strtol(p, &next, 0);
811  if (next == p) {
812  av_log(avctx, AV_LOG_ERROR,
813  "2Pass file invalid at %d %d %d %d [%s]\n",
814  i, j, k, m, p);
815  av_freep(&best_state);
816  return AVERROR_INVALIDDATA;
817  }
818  p = next;
819  }
820  }
821  gob_count = strtol(p, &next, 0);
822  if (next == p || gob_count <= 0) {
823  av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n");
824  av_freep(&best_state);
825  return AVERROR_INVALIDDATA;
826  }
827  p = next;
828  while (*p == '\n' || *p == ' ')
829  p++;
830  if (p[0] == 0)
831  break;
832  }
833  if (s->ac == AC_RANGE_CUSTOM_TAB)
834  sort_stt(s, s->state_transition);
835 
836  find_best_state(best_state, s->state_transition);
837 
838  for (i = 0; i < s->quant_table_count; i++) {
839  for (k = 0; k < 32; k++) {
840  double a=0, b=0;
841  int jp = 0;
842  for (j = 0; j < s->context_count[i]; j++) {
843  double p = 128;
844  if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) {
845  if (a+b)
846  p = 256.0 * b / (a + b);
847  s->initial_states[i][jp][k] =
848  best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
849  for(jp++; jp<j; jp++)
850  s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k];
851  a=b=0;
852  }
853  a += s->rc_stat2[i][j][k][0];
854  b += s->rc_stat2[i][j][k][1];
855  if (a+b) {
856  p = 256.0 * b / (a + b);
857  }
858  s->initial_states[i][j][k] =
859  best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
860  }
861  }
862  }
863  av_freep(&best_state);
864  }
865 
866  if (s->version > 1) {
867  int plane_count = 1 + 2*s->chroma_planes + s->transparency;
868  int max_h_slices = AV_CEIL_RSHIFT(avctx->width , s->chroma_h_shift);
869  int max_v_slices = AV_CEIL_RSHIFT(avctx->height, s->chroma_v_shift);
870  s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
871 
872  s->num_v_slices = FFMIN(s->num_v_slices, max_v_slices);
873 
874  for (; s->num_v_slices < 32; s->num_v_slices++) {
875  for (s->num_h_slices = s->num_v_slices; s->num_h_slices < 2*s->num_v_slices; s->num_h_slices++) {
876  int maxw = (avctx->width + s->num_h_slices - 1) / s->num_h_slices;
877  int maxh = (avctx->height + s->num_v_slices - 1) / s->num_v_slices;
878  if (s->num_h_slices > max_h_slices || s->num_v_slices > max_v_slices)
879  continue;
880  if (maxw * maxh * (int64_t)(s->bits_per_raw_sample+1) * plane_count > 8<<24)
881  continue;
882  if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= MAX_SLICES || !avctx->slices)
883  goto slices_ok;
884  }
885  }
886  av_log(avctx, AV_LOG_ERROR,
887  "Unsupported number %d of slices requested, please specify a "
888  "supported number with -slices (ex:4,6,9,12,16, ...)\n",
889  avctx->slices);
890  return AVERROR(ENOSYS);
891 slices_ok:
892  if ((ret = write_extradata(s)) < 0)
893  return ret;
894  }
895 
896  if ((ret = ff_ffv1_init_slice_contexts(s)) < 0)
897  return ret;
899  if ((ret = ff_ffv1_init_slices_state(s)) < 0)
900  return ret;
901 
902 #define STATS_OUT_SIZE 1024 * 1024 * 6
903  if (avctx->flags & AV_CODEC_FLAG_PASS1) {
905  if (!avctx->stats_out)
906  return AVERROR(ENOMEM);
907  for (i = 0; i < s->quant_table_count; i++)
908  for (j = 0; j < s->max_slice_count; j++) {
909  FFV1Context *sf = s->slice_context[j];
910  av_assert0(!sf->rc_stat2[i]);
911  sf->rc_stat2[i] = av_mallocz(s->context_count[i] *
912  sizeof(*sf->rc_stat2[i]));
913  if (!sf->rc_stat2[i])
914  return AVERROR(ENOMEM);
915  }
916  }
917 
918  return 0;
919 }
920 
922 {
923  RangeCoder *c = &fs->c;
925  int j;
926  memset(state, 128, sizeof(state));
927 
928  put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
929  put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
930  put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
931  put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
932  for (j=0; j<f->plane_count; j++) {
933  put_symbol(c, state, f->plane[j].quant_table_index, 0);
935  }
936  if (!f->picture.f->interlaced_frame)
937  put_symbol(c, state, 3, 0);
938  else
939  put_symbol(c, state, 1 + !f->picture.f->top_field_first, 0);
940  put_symbol(c, state, f->picture.f->sample_aspect_ratio.num, 0);
941  put_symbol(c, state, f->picture.f->sample_aspect_ratio.den, 0);
942  if (f->version > 3) {
943  put_rac(c, state, fs->slice_coding_mode == 1);
944  if (fs->slice_coding_mode == 1)
946  put_symbol(c, state, fs->slice_coding_mode, 0);
947  if (fs->slice_coding_mode != 1) {
948  put_symbol(c, state, fs->slice_rct_by_coef, 0);
949  put_symbol(c, state, fs->slice_rct_ry_coef, 0);
950  }
951  }
952 }
953 
954 static void choose_rct_params(FFV1Context *fs, const uint8_t *src[3], const int stride[3], int w, int h)
955 {
956 #define NB_Y_COEFF 15
957  static const int rct_y_coeff[15][2] = {
958  {0, 0}, // 4G
959  {1, 1}, // R + 2G + B
960  {2, 2}, // 2R + 2B
961  {0, 2}, // 2G + 2B
962  {2, 0}, // 2R + 2G
963  {4, 0}, // 4R
964  {0, 4}, // 4B
965 
966  {0, 3}, // 1G + 3B
967  {3, 0}, // 3R + 1G
968  {3, 1}, // 3R + B
969  {1, 3}, // R + 3B
970  {1, 2}, // R + G + 2B
971  {2, 1}, // 2R + G + B
972  {0, 1}, // 3G + B
973  {1, 0}, // R + 3G
974  };
975 
976  int stat[NB_Y_COEFF] = {0};
977  int x, y, i, p, best;
978  int16_t *sample[3];
979  int lbd = fs->bits_per_raw_sample <= 8;
980 
981  for (y = 0; y < h; y++) {
982  int lastr=0, lastg=0, lastb=0;
983  for (p = 0; p < 3; p++)
984  sample[p] = fs->sample_buffer + p*w;
985 
986  for (x = 0; x < w; x++) {
987  int b, g, r;
988  int ab, ag, ar;
989  if (lbd) {
990  unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
991  b = v & 0xFF;
992  g = (v >> 8) & 0xFF;
993  r = (v >> 16) & 0xFF;
994  } else {
995  b = *((const uint16_t*)(src[0] + x*2 + stride[0]*y));
996  g = *((const uint16_t*)(src[1] + x*2 + stride[1]*y));
997  r = *((const uint16_t*)(src[2] + x*2 + stride[2]*y));
998  }
999 
1000  ar = r - lastr;
1001  ag = g - lastg;
1002  ab = b - lastb;
1003  if (x && y) {
1004  int bg = ag - sample[0][x];
1005  int bb = ab - sample[1][x];
1006  int br = ar - sample[2][x];
1007 
1008  br -= bg;
1009  bb -= bg;
1010 
1011  for (i = 0; i<NB_Y_COEFF; i++) {
1012  stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2));
1013  }
1014 
1015  }
1016  sample[0][x] = ag;
1017  sample[1][x] = ab;
1018  sample[2][x] = ar;
1019 
1020  lastr = r;
1021  lastg = g;
1022  lastb = b;
1023  }
1024  }
1025 
1026  best = 0;
1027  for (i=1; i<NB_Y_COEFF; i++) {
1028  if (stat[i] < stat[best])
1029  best = i;
1030  }
1031 
1032  fs->slice_rct_by_coef = rct_y_coeff[best][1];
1033  fs->slice_rct_ry_coef = rct_y_coeff[best][0];
1034 }
1035 
1036 static int encode_slice(AVCodecContext *c, void *arg)
1037 {
1038  FFV1Context *fs = *(void **)arg;
1039  FFV1Context *f = fs->avctx->priv_data;
1040  int width = fs->slice_width;
1041  int height = fs->slice_height;
1042  int x = fs->slice_x;
1043  int y = fs->slice_y;
1044  const AVFrame *const p = f->picture.f;
1045  const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step;
1046  int ret;
1047  RangeCoder c_bak = fs->c;
1048  const uint8_t *planes[4] = {p->data[0] + ps*x + y*p->linesize[0],
1049  p->data[1] ? p->data[1] + ps*x + y*p->linesize[1] : NULL,
1050  p->data[2] ? p->data[2] + ps*x + y*p->linesize[2] : NULL,
1051  p->data[3] ? p->data[3] + ps*x + y*p->linesize[3] : NULL};
1052 
1053  fs->slice_coding_mode = 0;
1054  if (f->version > 3) {
1055  choose_rct_params(fs, planes, p->linesize, width, height);
1056  } else {
1057  fs->slice_rct_by_coef = 1;
1058  fs->slice_rct_ry_coef = 1;
1059  }
1060 
1061 retry:
1062  if (f->key_frame)
1064  if (f->version > 2) {
1065  encode_slice_header(f, fs);
1066  }
1067  if (fs->ac == AC_GOLOMB_RICE) {
1068  if (f->version > 2)
1069  put_rac(&fs->c, (uint8_t[]) { 129 }, 0);
1070  fs->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&fs->c) : 0;
1071  init_put_bits(&fs->pb,
1072  fs->c.bytestream_start + fs->ac_byte_count,
1073  fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count);
1074  }
1075 
1076  if (f->colorspace == 0 && c->pix_fmt != AV_PIX_FMT_YA8) {
1077  const int chroma_width = AV_CEIL_RSHIFT(width, f->chroma_h_shift);
1078  const int chroma_height = AV_CEIL_RSHIFT(height, f->chroma_v_shift);
1079  const int cx = x >> f->chroma_h_shift;
1080  const int cy = y >> f->chroma_v_shift;
1081 
1082  ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 1);
1083 
1084  if (f->chroma_planes) {
1085  ret |= encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1, 1);
1086  ret |= encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1, 1);
1087  }
1088  if (fs->transparency)
1089  ret |= encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2, 1);
1090  } else if (c->pix_fmt == AV_PIX_FMT_YA8) {
1091  ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 2);
1092  ret |= encode_plane(fs, p->data[0] + 1 + ps*x + y*p->linesize[0], width, height, p->linesize[0], 1, 2);
1093  } else if (f->use32bit) {
1094  ret = encode_rgb_frame32(fs, planes, width, height, p->linesize);
1095  } else {
1096  ret = encode_rgb_frame(fs, planes, width, height, p->linesize);
1097  }
1098  emms_c();
1099 
1100  if (ret < 0) {
1101  av_assert0(fs->slice_coding_mode == 0);
1102  if (fs->version < 4 || !fs->ac) {
1103  av_log(c, AV_LOG_ERROR, "Buffer too small\n");
1104  return ret;
1105  }
1106  av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n");
1107  fs->slice_coding_mode = 1;
1108  fs->c = c_bak;
1109  goto retry;
1110  }
1111 
1112  return 0;
1113 }
1114 
1116  const AVFrame *pict, int *got_packet)
1117 {
1118  FFV1Context *f = avctx->priv_data;
1119  RangeCoder *const c = &f->slice_context[0]->c;
1120  AVFrame *const p = f->picture.f;
1121  uint8_t keystate = 128;
1122  uint8_t *buf_p;
1123  int i, ret;
1124  int64_t maxsize = AV_INPUT_BUFFER_MIN_SIZE
1125  + avctx->width*avctx->height*37LL*4;
1126 
1127  if(!pict) {
1128  if (avctx->flags & AV_CODEC_FLAG_PASS1) {
1129  int j, k, m;
1130  char *p = avctx->stats_out;
1131  char *end = p + STATS_OUT_SIZE;
1132 
1133  memset(f->rc_stat, 0, sizeof(f->rc_stat));
1134  for (i = 0; i < f->quant_table_count; i++)
1135  memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));
1136 
1138  for (j = 0; j < f->slice_count; j++) {
1139  FFV1Context *fs = f->slice_context[j];
1140  for (i = 0; i < 256; i++) {
1141  f->rc_stat[i][0] += fs->rc_stat[i][0];
1142  f->rc_stat[i][1] += fs->rc_stat[i][1];
1143  }
1144  for (i = 0; i < f->quant_table_count; i++) {
1145  for (k = 0; k < f->context_count[i]; k++)
1146  for (m = 0; m < 32; m++) {
1147  f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0];
1148  f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1];
1149  }
1150  }
1151  }
1152 
1153  for (j = 0; j < 256; j++) {
1154  snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1155  f->rc_stat[j][0], f->rc_stat[j][1]);
1156  p += strlen(p);
1157  }
1158  snprintf(p, end - p, "\n");
1159 
1160  for (i = 0; i < f->quant_table_count; i++) {
1161  for (j = 0; j < f->context_count[i]; j++)
1162  for (m = 0; m < 32; m++) {
1163  snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
1164  f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
1165  p += strlen(p);
1166  }
1167  }
1168  snprintf(p, end - p, "%d\n", f->gob_count);
1169  }
1170  return 0;
1171  }
1172 
1173  if (f->version > 3)
1174  maxsize = AV_INPUT_BUFFER_MIN_SIZE + avctx->width*avctx->height*3LL*4;
1175 
1176  if (maxsize > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32) {
1177  av_log(avctx, AV_LOG_WARNING, "Cannot allocate worst case packet size, the encoding could fail\n");
1178  maxsize = INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32;
1179  }
1180 
1181  if ((ret = ff_alloc_packet2(avctx, pkt, maxsize, 0)) < 0)
1182  return ret;
1183 
1184  ff_init_range_encoder(c, pkt->data, pkt->size);
1185  ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
1186 
1187  av_frame_unref(p);
1188  if ((ret = av_frame_ref(p, pict)) < 0)
1189  return ret;
1190 #if FF_API_CODED_FRAME
1194 #endif
1195 
1196  if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
1197  put_rac(c, &keystate, 1);
1198  f->key_frame = 1;
1199  f->gob_count++;
1200  write_header(f);
1201  } else {
1202  put_rac(c, &keystate, 0);
1203  f->key_frame = 0;
1204  }
1205 
1206  if (f->ac == AC_RANGE_CUSTOM_TAB) {
1207  int i;
1208  for (i = 1; i < 256; i++) {
1209  c->one_state[i] = f->state_transition[i];
1210  c->zero_state[256 - i] = 256 - c->one_state[i];
1211  }
1212  }
1213 
1214  for (i = 0; i < f->slice_count; i++) {
1215  FFV1Context *fs = f->slice_context[i];
1216  uint8_t *start = pkt->data + pkt->size * (int64_t)i / f->slice_count;
1217  int len = pkt->size / f->slice_count;
1218  if (i) {
1219  ff_init_range_encoder(&fs->c, start, len);
1220  } else {
1223  fs->c.bytestream_end = fs->c.bytestream_start + len;
1224  }
1225  }
1226  avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL,
1227  f->slice_count, sizeof(void *));
1228 
1229  buf_p = pkt->data;
1230  for (i = 0; i < f->slice_count; i++) {
1231  FFV1Context *fs = f->slice_context[i];
1232  int bytes;
1233 
1234  if (fs->ac != AC_GOLOMB_RICE) {
1235  uint8_t state = 129;
1236  put_rac(&fs->c, &state, 0);
1237  bytes = ff_rac_terminate(&fs->c);
1238  } else {
1239  flush_put_bits(&fs->pb); // FIXME: nicer padding
1240  bytes = fs->ac_byte_count + (put_bits_count(&fs->pb) + 7) / 8;
1241  }
1242  if (i > 0 || f->version > 2) {
1243  av_assert0(bytes < pkt->size / f->slice_count);
1244  memmove(buf_p, fs->c.bytestream_start, bytes);
1245  av_assert0(bytes < (1 << 24));
1246  AV_WB24(buf_p + bytes, bytes);
1247  bytes += 3;
1248  }
1249  if (f->ec) {
1250  unsigned v;
1251  buf_p[bytes++] = 0;
1252  v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes);
1253  AV_WL32(buf_p + bytes, v);
1254  bytes += 4;
1255  }
1256  buf_p += bytes;
1257  }
1258 
1259  if (avctx->flags & AV_CODEC_FLAG_PASS1)
1260  avctx->stats_out[0] = '\0';
1261 
1262 #if FF_API_CODED_FRAME
1264  avctx->coded_frame->key_frame = f->key_frame;
1266 #endif
1267 
1268  f->picture_number++;
1269  pkt->size = buf_p - pkt->data;
1270  pkt->pts =
1271  pkt->dts = pict->pts;
1272  pkt->flags |= AV_PKT_FLAG_KEY * f->key_frame;
1273  *got_packet = 1;
1274 
1275  return 0;
1276 }
1277 
1279 {
1280  ff_ffv1_close(avctx);
1281  return 0;
1282 }
1283 
1284 #define OFFSET(x) offsetof(FFV1Context, x)
1285 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1286 static const AVOption options[] = {
1287  { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1288  { "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT,
1289  { .i64 = 0 }, -2, 2, VE, "coder" },
1290  { "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST,
1291  { .i64 = AC_GOLOMB_RICE }, INT_MIN, INT_MAX, VE, "coder" },
1292  { "range_def", "Range with default table", 0, AV_OPT_TYPE_CONST,
1293  { .i64 = AC_RANGE_DEFAULT_TAB_FORCE }, INT_MIN, INT_MAX, VE, "coder" },
1294  { "range_tab", "Range with custom table", 0, AV_OPT_TYPE_CONST,
1295  { .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, "coder" },
1296  { "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST,
1297  { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
1298  { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT,
1299  { .i64 = 0 }, 0, 1, VE },
1300 
1301  { NULL }
1302 };
1303 
1304 static const AVClass ffv1_class = {
1305  .class_name = "ffv1 encoder",
1306  .item_name = av_default_item_name,
1307  .option = options,
1308  .version = LIBAVUTIL_VERSION_INT,
1309 };
1310 
1311 #if FF_API_CODER_TYPE
1312 static const AVCodecDefault ffv1_defaults[] = {
1313  { "coder", "-1" },
1314  { NULL },
1315 };
1316 #endif
1317 
1319  .name = "ffv1",
1320  .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
1321  .type = AVMEDIA_TYPE_VIDEO,
1322  .id = AV_CODEC_ID_FFV1,
1323  .priv_data_size = sizeof(FFV1Context),
1324  .init = encode_init,
1325  .encode2 = encode_frame,
1326  .close = encode_close,
1328  .pix_fmts = (const enum AVPixelFormat[]) {
1349 
1350  },
1351 #if FF_API_CODER_TYPE
1352  .defaults = ffv1_defaults,
1353 #endif
1354  .priv_class = &ffv1_class,
1355 };
static av_always_inline int fold(int diff, int bits)
Definition: ffv1.h:151
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2604
#define NULL
Definition: coverity.c:32
static const AVCodecDefault ffv1_defaults[]
Definition: ffv1enc.c:1312
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:427
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:386
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:419
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2498
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
AVOption.
Definition: opt.h:246
static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
Definition: ffv1enc.c:921
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:421
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:394
8 bits gray, 8 bits alpha
Definition: pixfmt.h:143
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:404
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:422
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
int16_t quant_table[MAX_CONTEXT_INPUTS][256]
Definition: ffv1.h:69
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
int quant_table_count
Definition: ffv1.h:126
const char * g
Definition: vf_curves.c:115
const char * desc
Definition: nvenc.c:68
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int slice_height
Definition: ffv1.h:134
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:374
#define MAX_CONTEXT_INPUTS
Definition: ffv1.h:54
int16_t * sample_buffer
Definition: ffv1.h:111
int version
Definition: ffv1.h:87
int micro_version
Definition: ffv1.h:88
uint8_t zero_state[256]
Definition: rangecoder.h:40
Range coder.
uint8_t * bytestream_end
Definition: rangecoder.h:44
int num
Numerator.
Definition: rational.h:59
int size
Definition: avcodec.h:1453
const char * b
Definition: vf_curves.c:116
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:400
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
int av_log2(unsigned v)
Definition: intmath.c:26
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1750
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:364
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:388
char * stats_in
pass2 encoding statistics input buffer Concatenated stuff from stats_out of pass1 should be placed he...
Definition: avcodec.h:2563
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
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
static int ring_size(RingBuffer *ring)
Definition: async.c:105
static AVPacket pkt
uint64_t(*[MAX_QUANT_TABLES] rc_stat2)[32][2]
Definition: ffv1.h:86
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2767
FF Video Codec 1 (a lossless codec)
#define src
Definition: vp8dsp.c:254
#define sample
int height
Definition: ffv1.h:89
AVCodec.
Definition: avcodec.h:3441
uint8_t one_state[256]
Definition: rangecoder.h:41
Macro definitions for various function/variable attributes.
int slice_rct_by_coef
Definition: ffv1.h:139
#define log2(x)
Definition: libm.h:404
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:365
int plane_count
Definition: ffv1.h:100
int ff_rac_terminate(RangeCoder *c)
Definition: rangecoder.c:109
static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256])
Definition: ffv1enc.c:329
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:366
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:72
#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: avcodec.h:993
ThreadFrame picture
Definition: ffv1.h:96
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
uint64_t rc_stat[256][2]
Definition: ffv1.h:85
PutBitContext pb
Definition: ffv1.h:84
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:177
#define av_malloc(s)
static av_noinline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed)
Definition: ffv1enc.c:233
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
AVOptions.
int8_t bias
Definition: ffv1.h:64
#define f(width, name)
Definition: cbs_vp9.c:255
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
RangeCoder c
Definition: ffv1.h:82
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:443
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:319
av_cold int ff_ffv1_common_init(AVCodecContext *avctx)
Definition: ffv1.c:42
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1641
static av_cold int encode_init(AVCodecContext *avctx)
Definition: ffv1enc.c:508
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:418
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:399
static const int8_t quant11[256]
Definition: ffv1enc.c:101
int slice_y
Definition: ffv1.h:136
uint8_t(*[MAX_QUANT_TABLES] initial_states)[32]
Definition: ffv1.h:108
Public header for CRC hash function implementation.
av_cold int ff_ffv1_close(AVCodecContext *avctx)
Definition: ffv1.c:210
#define height
uint8_t * data
Definition: avcodec.h:1452
attribute_deprecated int context_model
Definition: avcodec.h:2459
uint8_t count
Definition: ffv1.h:65
#define ff_dlog(a,...)
static int encode_slice(AVCodecContext *c, void *arg)
Definition: ffv1enc.c:1036
static void choose_rct_params(FFV1Context *fs, const uint8_t *src[3], const int stride[3], int w, int h)
Definition: ffv1enc.c:954
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:397
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:373
ptrdiff_t size
Definition: opengl_enc.c:101
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:389
char * stats_out
pass1 encoding statistics output buffer
Definition: avcodec.h:2555
#define NB_Y_COEFF
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:426
high precision timer, useful to profile code
#define AV_INPUT_BUFFER_MIN_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:789
#define av_log(a,...)
static int write_extradata(FFV1Context *f)
Definition: ffv1enc.c:384
int bits_per_raw_sample
Definition: ffv1.h:122
int slice_width
Definition: ffv1.h:133
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1484
#define U(x)
Definition: vp56_arith.h:37
static int sort_stt(FFV1Context *s, uint8_t stt[256])
Definition: ffv1enc.c:460
static const uint8_t ver2_state[256]
Definition: ffv1enc.c:120
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
av_cold int ff_ffv1_init_slices_state(FFV1Context *f)
Definition: ffv1.c:106
int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256]
Definition: ffv1.h:105
#define AVERROR(e)
Definition: error.h:43
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:2526
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * r
Definition: vf_curves.c:114
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int context_count
Definition: ffv1.h:71
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:428
const char * arg
Definition: jacosubdec.c:66
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1620
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:405
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:370
simple assert() macros that are a bit more flexible than ISO C assert().
const char * name
Name of the codec implementation.
Definition: avcodec.h:3448
static av_always_inline av_const double round(double x)
Definition: libm.h:444
static const int8_t quant5[256]
Definition: ffv1enc.c:63
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:387
int ff_ffv1_allocate_initial_states(FFV1Context *f)
Definition: ffv1.c:167
#define MAX_SLICES
Definition: dxva2_hevc.c:29
#define FFMAX(a, b)
Definition: common.h:94
static const struct @305 planes[]
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:406
uint8_t * bytestream
Definition: rangecoder.h:43
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1458
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:85
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int ac
1=range coder <-> 0=golomb rice
Definition: ffv1.h:101
int16_t quant_table[MAX_CONTEXT_INPUTS][256]
Definition: ffv1.h:104
#define AC_RANGE_CUSTOM_TAB
Definition: ffv1.h:58
int run_index
Definition: ffv1.h:109
Definition: ffv1.h:61
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:382
#define av_flatten
Definition: attributes.h:88
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: ffv1enc.c:1115
static av_cold int encode_close(AVCodecContext *avctx)
Definition: ffv1enc.c:1278
uint8_t state_transition[256]
Definition: ffv1.h:107
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:309
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:403
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:368
int key_frame
Definition: ffv1.h:95
#define FFMIN(a, b)
Definition: common.h:96
int num_h_slices
Definition: ffv1.h:132
#define width
int width
picture width / height.
Definition: avcodec.h:1713
uint8_t w
Definition: llviddspenc.c:38
int colorspace
Definition: ffv1.h:110
static float quant_table[96]
Definition: binkaudio.c:43
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:858
static void update_vlc_state(VlcState *const state, const int v)
Definition: ffv1.h:164
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
int slice_count
Definition: ffv1.h:129
#define AV_WB24(p, d)
Definition: intreadwrite.h:450
AVCodec ff_ffv1_encoder
Definition: ffv1enc.c:1318
int max_slice_count
Definition: ffv1.h:130
void ff_build_rac_states(RangeCoder *c, int factor, int max_p)
Definition: rangecoder.c:68
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:2986
av_cold int ff_ffv1_init_slice_contexts(FFV1Context *f)
Definition: ffv1.c:117
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:423
int ac_byte_count
number of bytes used for AC coding
Definition: ffv1.h:102
int16_t drift
Definition: ffv1.h:62
int packed_at_lsb
Definition: ffv1.h:123
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:383
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:402
attribute_deprecated int coder_type
Definition: avcodec.h:2453
#define VE
Definition: ffv1enc.c:1285
static const AVOption options[]
Definition: ffv1enc.c:1286
static const float pred[4]
Definition: siprdata.h:259
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:395
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: avcodec.h:1028
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:392
int context_count[MAX_QUANT_TABLES]
Definition: ffv1.h:106
static const int8_t quant9_10bit[256]
Definition: ffv1enc.c:82
Libavcodec external API header.
#define AC_RANGE_DEFAULT_TAB_FORCE
Definition: ffv1.h:59
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257
#define STATS_OUT_SIZE
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
main external API structure.
Definition: avcodec.h:1540
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:357
int intra
Definition: ffv1.h:117
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:314
static void find_best_state(uint8_t best_state[256][256], const uint8_t one_state[256])
Definition: ffv1enc.c:139
int extradata_size
Definition: avcodec.h:1642
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:384
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
static void write_quant_table(RangeCoder *c, int16_t *quant_table)
Definition: ffv1enc.c:314
Describe the class of an AVClass context structure.
Definition: log.h:67
av_cold void ff_init_range_encoder(RangeCoder *c, uint8_t *buf, int buf_size)
Definition: rangecoder.c:42
int use32bit
Definition: ffv1.h:114
#define AC_GOLOMB_RICE
Definition: ffv1.h:56
static void put_vlc_symbol(PutBitContext *pb, VlcState *const state, int v, int bits)
Definition: ffv1enc.c:240
static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index, int pixel_stride)
Definition: ffv1enc.c:274
static void set_sr_golomb(PutBitContext *pb, int i, int k, int limit, int esc_len)
write signed golomb rice code (ffv1).
Definition: golomb.h:720
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:390
int picture_number
Definition: ffv1.h:94
uint16_t error_sum
Definition: ffv1.h:63
#define AC_RANGE_DEFAULT_TAB
Definition: ffv1.h:57
static const AVClass ffv1_class
Definition: ffv1enc.c:1304
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:381
#define snprintf
Definition: snprintf.h:34
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:393
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:401
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
#define CONTEXT_SIZE
Definition: ffv1.h:51
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:385
int gob_count
Definition: ffv1.h:125
int quant_table_index
Definition: ffv1.h:70
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:391
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240
#define OFFSET(x)
Definition: ffv1enc.c:1284
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1735
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
Definition: crc.c:374
#define COST2(old, new)
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int context_model
Definition: ffv1.h:120
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:101
if(ret< 0)
Definition: vf_mcdeint.c:279
static const int8_t quant5_10bit[256]
Definition: ffv1enc.c:44
static double c[64]
void ff_ffv1_clear_slice_state(FFV1Context *f, FFV1Context *fs)
Definition: ffv1.c:182
#define put_rac(C, S, B)
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:420
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2786
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:48
int den
Denominator.
Definition: rational.h:60
int slice_coding_mode
Definition: ffv1.h:138
uint8_t * bytestream_start
Definition: rangecoder.h:42
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:782
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:862
int slices
Number of slices.
Definition: avcodec.h:2187
void * priv_data
Definition: avcodec.h:1567
int chroma_h_shift
Definition: ffv1.h:91
PlaneContext plane[MAX_PLANES]
Definition: ffv1.h:103
int transparency
Definition: ffv1.h:92
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:2835
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int chroma_v_shift
Definition: ffv1.h:91
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:378
int len
int chroma_planes
Definition: ffv1.h:90
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:304
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:337
struct FFV1Context * slice_context[MAX_SLICES]
Definition: ffv1.h:128
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1451
#define av_noinline
Definition: attributes.h:62
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
void INT64 start
Definition: avisynth_c.h:690
#define av_always_inline
Definition: attributes.h:39
#define av_malloc_array(a, b)
#define FFSWAP(type, a, b)
Definition: common.h:99
int ec
Definition: ffv1.h:116
int num_v_slices
Definition: ffv1.h:131
exp golomb vlc stuff
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: avcodec.h:1429
static struct @304 state
AVCodecContext * avctx
Definition: ffv1.h:81
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:2599
static void print(AVTreeNode *t, int depth)
Definition: tree.c:44
int slice_x
Definition: ffv1.h:135
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:396
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1445
for(j=16;j >0;--j)
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:41
int width
Definition: ffv1.h:89
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
#define AV_PIX_FMT_0RGB32
Definition: pixfmt.h:361
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
int slice_rct_ry_coef
Definition: ffv1.h:140
bitstream writer API