FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/proresenc_kostya.c
Date: 2022-11-26 13:19:19
Exec Total Coverage
Lines: 468 651 71.9%
Branches: 180 302 59.6%

Line Branch Exec Source
1 /*
2 * Apple ProRes encoder
3 *
4 * Copyright (c) 2012 Konstantin Shishkov
5 *
6 * This encoder appears to be based on Anatoliy Wassermans considering
7 * similarities in the bugs.
8 *
9 * This file is part of FFmpeg.
10 *
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 */
25
26 #include "libavutil/mem_internal.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "avcodec.h"
30 #include "codec_internal.h"
31 #include "encode.h"
32 #include "fdctdsp.h"
33 #include "put_bits.h"
34 #include "profiles.h"
35 #include "bytestream.h"
36 #include "proresdata.h"
37
38 #define CFACTOR_Y422 2
39 #define CFACTOR_Y444 3
40
41 #define MAX_MBS_PER_SLICE 8
42
43 #define MAX_PLANES 4
44
45 enum {
46 PRORES_PROFILE_AUTO = -1,
47 PRORES_PROFILE_PROXY = 0,
48 PRORES_PROFILE_LT,
49 PRORES_PROFILE_STANDARD,
50 PRORES_PROFILE_HQ,
51 PRORES_PROFILE_4444,
52 PRORES_PROFILE_4444XQ,
53 };
54
55 enum {
56 QUANT_MAT_PROXY = 0,
57 QUANT_MAT_PROXY_CHROMA,
58 QUANT_MAT_LT,
59 QUANT_MAT_STANDARD,
60 QUANT_MAT_HQ,
61 QUANT_MAT_XQ_LUMA,
62 QUANT_MAT_DEFAULT,
63 };
64
65 static const uint8_t prores_quant_matrices[][64] = {
66 { // proxy
67 4, 7, 9, 11, 13, 14, 15, 63,
68 7, 7, 11, 12, 14, 15, 63, 63,
69 9, 11, 13, 14, 15, 63, 63, 63,
70 11, 11, 13, 14, 63, 63, 63, 63,
71 11, 13, 14, 63, 63, 63, 63, 63,
72 13, 14, 63, 63, 63, 63, 63, 63,
73 13, 63, 63, 63, 63, 63, 63, 63,
74 63, 63, 63, 63, 63, 63, 63, 63,
75 },
76 { // proxy chromas
77 4, 7, 9, 11, 13, 14, 63, 63,
78 7, 7, 11, 12, 14, 63, 63, 63,
79 9, 11, 13, 14, 63, 63, 63, 63,
80 11, 11, 13, 14, 63, 63, 63, 63,
81 11, 13, 14, 63, 63, 63, 63, 63,
82 13, 14, 63, 63, 63, 63, 63, 63,
83 13, 63, 63, 63, 63, 63, 63, 63,
84 63, 63, 63, 63, 63, 63, 63, 63
85 },
86 { // LT
87 4, 5, 6, 7, 9, 11, 13, 15,
88 5, 5, 7, 8, 11, 13, 15, 17,
89 6, 7, 9, 11, 13, 15, 15, 17,
90 7, 7, 9, 11, 13, 15, 17, 19,
91 7, 9, 11, 13, 14, 16, 19, 23,
92 9, 11, 13, 14, 16, 19, 23, 29,
93 9, 11, 13, 15, 17, 21, 28, 35,
94 11, 13, 16, 17, 21, 28, 35, 41,
95 },
96 { // standard
97 4, 4, 5, 5, 6, 7, 7, 9,
98 4, 4, 5, 6, 7, 7, 9, 9,
99 5, 5, 6, 7, 7, 9, 9, 10,
100 5, 5, 6, 7, 7, 9, 9, 10,
101 5, 6, 7, 7, 8, 9, 10, 12,
102 6, 7, 7, 8, 9, 10, 12, 15,
103 6, 7, 7, 9, 10, 11, 14, 17,
104 7, 7, 9, 10, 11, 14, 17, 21,
105 },
106 { // high quality
107 4, 4, 4, 4, 4, 4, 4, 4,
108 4, 4, 4, 4, 4, 4, 4, 4,
109 4, 4, 4, 4, 4, 4, 4, 4,
110 4, 4, 4, 4, 4, 4, 4, 5,
111 4, 4, 4, 4, 4, 4, 5, 5,
112 4, 4, 4, 4, 4, 5, 5, 6,
113 4, 4, 4, 4, 5, 5, 6, 7,
114 4, 4, 4, 4, 5, 6, 7, 7,
115 },
116 { // XQ luma
117 2, 2, 2, 2, 2, 2, 2, 2,
118 2, 2, 2, 2, 2, 2, 2, 2,
119 2, 2, 2, 2, 2, 2, 2, 2,
120 2, 2, 2, 2, 2, 2, 2, 3,
121 2, 2, 2, 2, 2, 2, 3, 3,
122 2, 2, 2, 2, 2, 3, 3, 3,
123 2, 2, 2, 2, 3, 3, 3, 4,
124 2, 2, 2, 2, 3, 3, 4, 4,
125 },
126 { // codec default
127 4, 4, 4, 4, 4, 4, 4, 4,
128 4, 4, 4, 4, 4, 4, 4, 4,
129 4, 4, 4, 4, 4, 4, 4, 4,
130 4, 4, 4, 4, 4, 4, 4, 4,
131 4, 4, 4, 4, 4, 4, 4, 4,
132 4, 4, 4, 4, 4, 4, 4, 4,
133 4, 4, 4, 4, 4, 4, 4, 4,
134 4, 4, 4, 4, 4, 4, 4, 4,
135 },
136 };
137
138 static const uint8_t prores_dc_codebook[4] = {
139 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
140 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
141 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1
142 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0
143 };
144
145 static const uint8_t prores_ac_codebook[7] = {
146 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
147 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
148 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0
149 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1
150 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1
151 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2
152 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2
153 };
154
155 /**
156 * Lookup tables for adaptive switching between codebooks
157 * according with previous run/level value.
158 */
159 static const uint8_t prores_run_to_cb_index[16] =
160 { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 };
161
162 static const uint8_t prores_lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 };
163
164 #define NUM_MB_LIMITS 4
165 static const int prores_mb_limits[NUM_MB_LIMITS] = {
166 1620, // up to 720x576
167 2700, // up to 960x720
168 6075, // up to 1440x1080
169 9216, // up to 2048x1152
170 };
171
172 static const struct prores_profile {
173 const char *full_name;
174 uint32_t tag;
175 int min_quant;
176 int max_quant;
177 int br_tab[NUM_MB_LIMITS];
178 int quant;
179 int quant_chroma;
180 } prores_profile_info[6] = {
181 {
182 .full_name = "proxy",
183 .tag = MKTAG('a', 'p', 'c', 'o'),
184 .min_quant = 4,
185 .max_quant = 8,
186 .br_tab = { 300, 242, 220, 194 },
187 .quant = QUANT_MAT_PROXY,
188 .quant_chroma = QUANT_MAT_PROXY_CHROMA,
189 },
190 {
191 .full_name = "LT",
192 .tag = MKTAG('a', 'p', 'c', 's'),
193 .min_quant = 1,
194 .max_quant = 9,
195 .br_tab = { 720, 560, 490, 440 },
196 .quant = QUANT_MAT_LT,
197 .quant_chroma = QUANT_MAT_LT,
198 },
199 {
200 .full_name = "standard",
201 .tag = MKTAG('a', 'p', 'c', 'n'),
202 .min_quant = 1,
203 .max_quant = 6,
204 .br_tab = { 1050, 808, 710, 632 },
205 .quant = QUANT_MAT_STANDARD,
206 .quant_chroma = QUANT_MAT_STANDARD,
207 },
208 {
209 .full_name = "high quality",
210 .tag = MKTAG('a', 'p', 'c', 'h'),
211 .min_quant = 1,
212 .max_quant = 6,
213 .br_tab = { 1566, 1216, 1070, 950 },
214 .quant = QUANT_MAT_HQ,
215 .quant_chroma = QUANT_MAT_HQ,
216 },
217 {
218 .full_name = "4444",
219 .tag = MKTAG('a', 'p', '4', 'h'),
220 .min_quant = 1,
221 .max_quant = 6,
222 .br_tab = { 2350, 1828, 1600, 1425 },
223 .quant = QUANT_MAT_HQ,
224 .quant_chroma = QUANT_MAT_HQ,
225 },
226 {
227 .full_name = "4444XQ",
228 .tag = MKTAG('a', 'p', '4', 'x'),
229 .min_quant = 1,
230 .max_quant = 6,
231 .br_tab = { 3525, 2742, 2400, 2137 },
232 .quant = QUANT_MAT_HQ, /* Fix me : use QUANT_MAT_XQ_LUMA */
233 .quant_chroma = QUANT_MAT_HQ,
234 }
235 };
236
237 #define TRELLIS_WIDTH 16
238 #define SCORE_LIMIT INT_MAX / 2
239
240 struct TrellisNode {
241 int prev_node;
242 int quant;
243 int bits;
244 int score;
245 };
246
247 #define MAX_STORED_Q 16
248
249 typedef struct ProresThreadData {
250 DECLARE_ALIGNED(16, int16_t, blocks)[MAX_PLANES][64 * 4 * MAX_MBS_PER_SLICE];
251 DECLARE_ALIGNED(16, uint16_t, emu_buf)[16 * 16];
252 int16_t custom_q[64];
253 int16_t custom_chroma_q[64];
254 struct TrellisNode *nodes;
255 } ProresThreadData;
256
257 typedef struct ProresContext {
258 AVClass *class;
259 DECLARE_ALIGNED(16, int16_t, blocks)[MAX_PLANES][64 * 4 * MAX_MBS_PER_SLICE];
260 DECLARE_ALIGNED(16, uint16_t, emu_buf)[16*16];
261 int16_t quants[MAX_STORED_Q][64];
262 int16_t quants_chroma[MAX_STORED_Q][64];
263 int16_t custom_q[64];
264 int16_t custom_chroma_q[64];
265 const uint8_t *quant_mat;
266 const uint8_t *quant_chroma_mat;
267 const uint8_t *scantable;
268
269 void (*fdct)(FDCTDSPContext *fdsp, const uint16_t *src,
270 ptrdiff_t linesize, int16_t *block);
271 FDCTDSPContext fdsp;
272
273 const AVFrame *pic;
274 int mb_width, mb_height;
275 int mbs_per_slice;
276 int num_chroma_blocks, chroma_factor;
277 int slices_width;
278 int slices_per_picture;
279 int pictures_per_frame; // 1 for progressive, 2 for interlaced
280 int cur_picture_idx;
281 int num_planes;
282 int bits_per_mb;
283 int force_quant;
284 int alpha_bits;
285 int warn;
286
287 char *vendor;
288 int quant_sel;
289
290 int frame_size_upper_bound;
291
292 int profile;
293 const struct prores_profile *profile_info;
294
295 int *slice_q;
296
297 ProresThreadData *tdata;
298 } ProresContext;
299
300 66600 static void get_slice_data(ProresContext *ctx, const uint16_t *src,
301 ptrdiff_t linesize, int x, int y, int w, int h,
302 int16_t *blocks, uint16_t *emu_buf,
303 int mbs_per_slice, int blocks_per_mb, int is_chroma)
304 {
305 const uint16_t *esrc;
306 66600 const int mb_width = 4 * blocks_per_mb;
307 ptrdiff_t elinesize;
308 int i, j, k;
309
310
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425700 for (i = 0; i < mbs_per_slice; i++, src += mb_width) {
311
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359100 if (x >= w) {
312 memset(blocks, 0, 64 * (mbs_per_slice - i) * blocks_per_mb
313 * sizeof(*blocks));
314 return;
315 }
316
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359100 if (x + mb_width <= w && y + 16 <= h) {
317 357600 esrc = src;
318 357600 elinesize = linesize;
319 } else {
320 int bw, bh, pix;
321
322 1500 esrc = emu_buf;
323 1500 elinesize = 16 * sizeof(*emu_buf);
324
325 1500 bw = FFMIN(w - x, mb_width);
326 1500 bh = FFMIN(h - y, 16);
327
328
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12900 for (j = 0; j < bh; j++) {
329 11400 memcpy(emu_buf + j * 16,
330 11400 (const uint8_t*)src + j * linesize,
331 bw * sizeof(*src));
332 11400 pix = emu_buf[j * 16 + bw - 1];
333
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106600 for (k = bw; k < mb_width; k++)
334 95200 emu_buf[j * 16 + k] = pix;
335 }
336
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14100 for (; j < 16; j++)
337 12600 memcpy(emu_buf + j * 16,
338 12600 emu_buf + (bh - 1) * 16,
339 mb_width * sizeof(*emu_buf));
340 }
341
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359100 if (!is_chroma) {
342 119700 ctx->fdct(&ctx->fdsp, esrc, elinesize, blocks);
343 119700 blocks += 64;
344
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119700 if (blocks_per_mb > 2) {
345 119700 ctx->fdct(&ctx->fdsp, esrc + 8, elinesize, blocks);
346 119700 blocks += 64;
347 }
348 119700 ctx->fdct(&ctx->fdsp, esrc + elinesize * 4, elinesize, blocks);
349 119700 blocks += 64;
350
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119700 if (blocks_per_mb > 2) {
351 119700 ctx->fdct(&ctx->fdsp, esrc + elinesize * 4 + 8, elinesize, blocks);
352 119700 blocks += 64;
353 }
354 } else {
355 239400 ctx->fdct(&ctx->fdsp, esrc, elinesize, blocks);
356 239400 blocks += 64;
357 239400 ctx->fdct(&ctx->fdsp, esrc + elinesize * 4, elinesize, blocks);
358 239400 blocks += 64;
359
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239400 if (blocks_per_mb > 2) {
360 ctx->fdct(&ctx->fdsp, esrc + 8, elinesize, blocks);
361 blocks += 64;
362 ctx->fdct(&ctx->fdsp, esrc + elinesize * 4 + 8, elinesize, blocks);
363 blocks += 64;
364 }
365 }
366
367 359100 x += mb_width;
368 }
369 }
370
371 static void get_alpha_data(ProresContext *ctx, const uint16_t *src,
372 ptrdiff_t linesize, int x, int y, int w, int h,
373 int16_t *blocks, int mbs_per_slice, int abits)
374 {
375 const int slice_width = 16 * mbs_per_slice;
376 int i, j, copy_w, copy_h;
377
378 copy_w = FFMIN(w - x, slice_width);
379 copy_h = FFMIN(h - y, 16);
380 for (i = 0; i < copy_h; i++) {
381 memcpy(blocks, src, copy_w * sizeof(*src));
382 if (abits == 8)
383 for (j = 0; j < copy_w; j++)
384 blocks[j] >>= 2;
385 else
386 for (j = 0; j < copy_w; j++)
387 blocks[j] = (blocks[j] << 6) | (blocks[j] >> 4);
388 for (j = copy_w; j < slice_width; j++)
389 blocks[j] = blocks[copy_w - 1];
390 blocks += slice_width;
391 src += linesize >> 1;
392 }
393 for (; i < 16; i++) {
394 memcpy(blocks, blocks - slice_width, slice_width * sizeof(*blocks));
395 blocks += slice_width;
396 }
397 }
398
399 /**
400 * Write an unsigned rice/exp golomb codeword.
401 */
402 26885174 static inline void encode_vlc_codeword(PutBitContext *pb, unsigned codebook, int val)
403 {
404 unsigned int rice_order, exp_order, switch_bits, switch_val;
405 int exponent;
406
407 /* number of prefix bits to switch between Rice and expGolomb */
408 26885174 switch_bits = (codebook & 3) + 1;
409 26885174 rice_order = codebook >> 5; /* rice code order */
410 26885174 exp_order = (codebook >> 2) & 7; /* exp golomb code order */
411
412 26885174 switch_val = switch_bits << rice_order;
413
414
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26885174 if (val >= switch_val) {
415 8074309 val -= switch_val - (1 << exp_order);
416 8074309 exponent = av_log2(val);
417
418 8074309 put_bits(pb, exponent - exp_order + switch_bits, 0);
419 8074309 put_bits(pb, exponent + 1, val);
420 } else {
421 18810865 exponent = val >> rice_order;
422
423
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18810865 if (exponent)
424 4838901 put_bits(pb, exponent, 0);
425 18810865 put_bits(pb, 1, 1);
426
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18810865 if (rice_order)
427 1904515 put_sbits(pb, rice_order, val);
428 }
429 26885174 }
430
431 #define GET_SIGN(x) ((x) >> 31)
432 #define MAKE_CODE(x) ((((x)) * 2) ^ GET_SIGN(x))
433
434 33300 static void encode_dcs(PutBitContext *pb, int16_t *blocks,
435 int blocks_per_slice, int scale)
436 {
437 int i;
438 33300 int codebook = 3, code, dc, prev_dc, delta, sign, new_sign;
439
440 33300 prev_dc = (blocks[0] - 0x4000) / scale;
441 33300 encode_vlc_codeword(pb, FIRST_DC_CB, MAKE_CODE(prev_dc));
442 33300 sign = 0;
443 33300 codebook = 3;
444 33300 blocks += 64;
445
446
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478800 for (i = 1; i < blocks_per_slice; i++, blocks += 64) {
447 445500 dc = (blocks[0] - 0x4000) / scale;
448 445500 delta = dc - prev_dc;
449 445500 new_sign = GET_SIGN(delta);
450 445500 delta = (delta ^ sign) - sign;
451 445500 code = MAKE_CODE(delta);
452 445500 encode_vlc_codeword(pb, prores_dc_codebook[codebook], code);
453 445500 codebook = (code + (code & 1)) >> 1;
454 445500 codebook = FFMIN(codebook, 3);
455 445500 sign = new_sign;
456 445500 prev_dc = dc;
457 }
458 33300 }
459
460 33300 static void encode_acs(PutBitContext *pb, int16_t *blocks,
461 int blocks_per_slice,
462 int plane_size_factor,
463 const uint8_t *scan, const int16_t *qmat)
464 {
465 int idx, i;
466 int run, level, run_cb, lev_cb;
467 int max_coeffs, abs_level;
468
469 33300 max_coeffs = blocks_per_slice << 6;
470 33300 run_cb = prores_run_to_cb_index[4];
471 33300 lev_cb = prores_lev_to_cb_index[2];
472 33300 run = 0;
473
474
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2131200 for (i = 1; i < 64; i++) {
475
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32262300 for (idx = scan[i]; idx < max_coeffs; idx += 64) {
476 30164400 level = blocks[idx] / qmat[scan[i]];
477
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30164400 if (level) {
478 13203187 abs_level = FFABS(level);
479 13203187 encode_vlc_codeword(pb, prores_ac_codebook[run_cb], run);
480 13203187 encode_vlc_codeword(pb, prores_ac_codebook[lev_cb],
481 abs_level - 1);
482 13203187 put_sbits(pb, 1, GET_SIGN(level));
483
484 13203187 run_cb = prores_run_to_cb_index[FFMIN(run, 15)];
485 13203187 lev_cb = prores_lev_to_cb_index[FFMIN(abs_level, 9)];
486 13203187 run = 0;
487 } else {
488 16961213 run++;
489 }
490 }
491 }
492 33300 }
493
494 33300 static void encode_slice_plane(ProresContext *ctx, PutBitContext *pb,
495 const uint16_t *src, ptrdiff_t linesize,
496 int mbs_per_slice, int16_t *blocks,
497 int blocks_per_mb, int plane_size_factor,
498 const int16_t *qmat)
499 {
500 33300 int blocks_per_slice = mbs_per_slice * blocks_per_mb;
501
502 33300 encode_dcs(pb, blocks, blocks_per_slice, qmat[0]);
503 33300 encode_acs(pb, blocks, blocks_per_slice, plane_size_factor,
504 ctx->scantable, qmat);
505 33300 }
506
507 static void put_alpha_diff(PutBitContext *pb, int cur, int prev, int abits)
508 {
509 const int dbits = (abits == 8) ? 4 : 7;
510 const int dsize = 1 << dbits - 1;
511 int diff = cur - prev;
512
513 diff = av_mod_uintp2(diff, abits);
514 if (diff >= (1 << abits) - dsize)
515 diff -= 1 << abits;
516 if (diff < -dsize || diff > dsize || !diff) {
517 put_bits(pb, 1, 1);
518 put_bits(pb, abits, diff);
519 } else {
520 put_bits(pb, 1, 0);
521 put_bits(pb, dbits - 1, FFABS(diff) - 1);
522 put_bits(pb, 1, diff < 0);
523 }
524 }
525
526 static void put_alpha_run(PutBitContext *pb, int run)
527 {
528 if (run) {
529 put_bits(pb, 1, 0);
530 if (run < 0x10)
531 put_bits(pb, 4, run);
532 else
533 put_bits(pb, 15, run);
534 } else {
535 put_bits(pb, 1, 1);
536 }
537 }
538
539 // todo alpha quantisation for high quants
540 static void encode_alpha_plane(ProresContext *ctx, PutBitContext *pb,
541 int mbs_per_slice, uint16_t *blocks,
542 int quant)
543 {
544 const int abits = ctx->alpha_bits;
545 const int mask = (1 << abits) - 1;
546 const int num_coeffs = mbs_per_slice * 256;
547 int prev = mask, cur;
548 int idx = 0;
549 int run = 0;
550
551 cur = blocks[idx++];
552 put_alpha_diff(pb, cur, prev, abits);
553 prev = cur;
554 do {
555 cur = blocks[idx++];
556 if (cur != prev) {
557 put_alpha_run (pb, run);
558 put_alpha_diff(pb, cur, prev, abits);
559 prev = cur;
560 run = 0;
561 } else {
562 run++;
563 }
564 } while (idx < num_coeffs);
565 if (run)
566 put_alpha_run(pb, run);
567 }
568
569 11100 static int encode_slice(AVCodecContext *avctx, const AVFrame *pic,
570 PutBitContext *pb,
571 int sizes[4], int x, int y, int quant,
572 int mbs_per_slice)
573 {
574 11100 ProresContext *ctx = avctx->priv_data;
575 int i, xp, yp;
576 11100 int total_size = 0;
577 const uint16_t *src;
578 11100 int slice_width_factor = av_log2(mbs_per_slice);
579 int num_cblocks, pwidth, line_add;
580 ptrdiff_t linesize;
581 int plane_factor, is_chroma;
582 uint16_t *qmat;
583 uint16_t *qmat_chroma;
584
585
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11100 if (ctx->pictures_per_frame == 1)
586 11100 line_add = 0;
587 else
588 line_add = ctx->cur_picture_idx ^ !pic->top_field_first;
589
590
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11100 if (ctx->force_quant) {
591 qmat = ctx->quants[0];
592 qmat_chroma = ctx->quants_chroma[0];
593
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11100 } else if (quant < MAX_STORED_Q) {
594 8353 qmat = ctx->quants[quant];
595 8353 qmat_chroma = ctx->quants_chroma[quant];
596 } else {
597 2747 qmat = ctx->custom_q;
598 2747 qmat_chroma = ctx->custom_chroma_q;
599
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178555 for (i = 0; i < 64; i++) {
600 175808 qmat[i] = ctx->quant_mat[i] * quant;
601 175808 qmat_chroma[i] = ctx->quant_chroma_mat[i] * quant;
602 }
603 }
604
605
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44400 for (i = 0; i < ctx->num_planes; i++) {
606
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33300 is_chroma = (i == 1 || i == 2);
607 33300 plane_factor = slice_width_factor + 2;
608
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33300 if (is_chroma)
609 22200 plane_factor += ctx->chroma_factor - 3;
610
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33300 if (!is_chroma || ctx->chroma_factor == CFACTOR_Y444) {
611 11100 xp = x << 4;
612 11100 yp = y << 4;
613 11100 num_cblocks = 4;
614 11100 pwidth = avctx->width;
615 } else {
616 22200 xp = x << 3;
617 22200 yp = y << 4;
618 22200 num_cblocks = 2;
619 22200 pwidth = avctx->width >> 1;
620 }
621
622 33300 linesize = pic->linesize[i] * ctx->pictures_per_frame;
623 33300 src = (const uint16_t*)(pic->data[i] + yp * linesize +
624 33300 line_add * pic->linesize[i]) + xp;
625
626
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33300 if (i < 3) {
627 33300 get_slice_data(ctx, src, linesize, xp, yp,
628 33300 pwidth, avctx->height / ctx->pictures_per_frame,
629 33300 ctx->blocks[0], ctx->emu_buf,
630 mbs_per_slice, num_cblocks, is_chroma);
631
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33300 if (!is_chroma) {/* luma quant */
632 11100 encode_slice_plane(ctx, pb, src, linesize,
633 11100 mbs_per_slice, ctx->blocks[0],
634 num_cblocks, plane_factor, qmat);
635 } else { /* chroma plane */
636 22200 encode_slice_plane(ctx, pb, src, linesize,
637 22200 mbs_per_slice, ctx->blocks[0],
638 num_cblocks, plane_factor, qmat_chroma);
639 }
640 } else {
641 get_alpha_data(ctx, src, linesize, xp, yp,
642 pwidth, avctx->height / ctx->pictures_per_frame,
643 ctx->blocks[0], mbs_per_slice, ctx->alpha_bits);
644 encode_alpha_plane(ctx, pb, mbs_per_slice, ctx->blocks[0], quant);
645 }
646 33300 flush_put_bits(pb);
647 33300 sizes[i] = put_bytes_output(pb) - total_size;
648 33300 total_size = put_bytes_output(pb);
649 }
650 11100 return total_size;
651 }
652
653 390320122 static inline int estimate_vlc(unsigned codebook, int val)
654 {
655 unsigned int rice_order, exp_order, switch_bits, switch_val;
656 int exponent;
657
658 /* number of prefix bits to switch between Rice and expGolomb */
659 390320122 switch_bits = (codebook & 3) + 1;
660 390320122 rice_order = codebook >> 5; /* rice code order */
661 390320122 exp_order = (codebook >> 2) & 7; /* exp golomb code order */
662
663 390320122 switch_val = switch_bits << rice_order;
664
665
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390320122 if (val >= switch_val) {
666 135366530 val -= switch_val - (1 << exp_order);
667 135366530 exponent = av_log2(val);
668
669 135366530 return exponent * 2 - exp_order + switch_bits + 1;
670 } else {
671 254953592 return (val >> rice_order) + rice_order + 1;
672 }
673 }
674
675 379686 static int estimate_dcs(int *error, int16_t *blocks, int blocks_per_slice,
676 int scale)
677 {
678 int i;
679 379686 int codebook = 3, code, dc, prev_dc, delta, sign, new_sign;
680 int bits;
681
682 379686 prev_dc = (blocks[0] - 0x4000) / scale;
683 379686 bits = estimate_vlc(FIRST_DC_CB, MAKE_CODE(prev_dc));
684 379686 sign = 0;
685 379686 codebook = 3;
686 379686 blocks += 64;
687
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379686 *error += FFABS(blocks[0] - 0x4000) % scale;
688
689
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5449672 for (i = 1; i < blocks_per_slice; i++, blocks += 64) {
690 5069986 dc = (blocks[0] - 0x4000) / scale;
691
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5069986 *error += FFABS(blocks[0] - 0x4000) % scale;
692 5069986 delta = dc - prev_dc;
693 5069986 new_sign = GET_SIGN(delta);
694 5069986 delta = (delta ^ sign) - sign;
695 5069986 code = MAKE_CODE(delta);
696 5069986 bits += estimate_vlc(prores_dc_codebook[codebook], code);
697 5069986 codebook = (code + (code & 1)) >> 1;
698 5069986 codebook = FFMIN(codebook, 3);
699 5069986 sign = new_sign;
700 5069986 prev_dc = dc;
701 }
702
703 379686 return bits;
704 }
705
706 379686 static int estimate_acs(int *error, int16_t *blocks, int blocks_per_slice,
707 int plane_size_factor,
708 const uint8_t *scan, const int16_t *qmat)
709 {
710 int idx, i;
711 int run, level, run_cb, lev_cb;
712 int max_coeffs, abs_level;
713 379686 int bits = 0;
714
715 379686 max_coeffs = blocks_per_slice << 6;
716 379686 run_cb = prores_run_to_cb_index[4];
717 379686 lev_cb = prores_lev_to_cb_index[2];
718 379686 run = 0;
719
720
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24299904 for (i = 1; i < 64; i++) {
721
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367249554 for (idx = scan[i]; idx < max_coeffs; idx += 64) {
722 343329336 level = blocks[idx] / qmat[scan[i]];
723 343329336 *error += FFABS(blocks[idx]) % qmat[scan[i]];
724
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343329336 if (level) {
725 192435225 abs_level = FFABS(level);
726 192435225 bits += estimate_vlc(prores_ac_codebook[run_cb], run);
727 192435225 bits += estimate_vlc(prores_ac_codebook[lev_cb],
728 192435225 abs_level - 1) + 1;
729
730 192435225 run_cb = prores_run_to_cb_index[FFMIN(run, 15)];
731 192435225 lev_cb = prores_lev_to_cb_index[FFMIN(abs_level, 9)];
732 192435225 run = 0;
733 } else {
734 150894111 run++;
735 }
736 }
737 }
738
739 379686 return bits;
740 }
741
742 379686 static int estimate_slice_plane(ProresContext *ctx, int *error, int plane,
743 const uint16_t *src, ptrdiff_t linesize,
744 int mbs_per_slice,
745 int blocks_per_mb, int plane_size_factor,
746 const int16_t *qmat, ProresThreadData *td)
747 {
748 int blocks_per_slice;
749 int bits;
750
751 379686 blocks_per_slice = mbs_per_slice * blocks_per_mb;
752
753 379686 bits = estimate_dcs(error, td->blocks[plane], blocks_per_slice, qmat[0]);
754 379686 bits += estimate_acs(error, td->blocks[plane], blocks_per_slice,
755 plane_size_factor, ctx->scantable, qmat);
756
757 379686 return FFALIGN(bits, 8);
758 }
759
760 static int est_alpha_diff(int cur, int prev, int abits)
761 {
762 const int dbits = (abits == 8) ? 4 : 7;
763 const int dsize = 1 << dbits - 1;
764 int diff = cur - prev;
765
766 diff = av_mod_uintp2(diff, abits);
767 if (diff >= (1 << abits) - dsize)
768 diff -= 1 << abits;
769 if (diff < -dsize || diff > dsize || !diff)
770 return abits + 1;
771 else
772 return dbits + 1;
773 }
774
775 static int estimate_alpha_plane(ProresContext *ctx,
776 const uint16_t *src, ptrdiff_t linesize,
777 int mbs_per_slice, int16_t *blocks)
778 {
779 const int abits = ctx->alpha_bits;
780 const int mask = (1 << abits) - 1;
781 const int num_coeffs = mbs_per_slice * 256;
782 int prev = mask, cur;
783 int idx = 0;
784 int run = 0;
785 int bits;
786
787 cur = blocks[idx++];
788 bits = est_alpha_diff(cur, prev, abits);
789 prev = cur;
790 do {
791 cur = blocks[idx++];
792 if (cur != prev) {
793 if (!run)
794 bits++;
795 else if (run < 0x10)
796 bits += 4;
797 else
798 bits += 15;
799 bits += est_alpha_diff(cur, prev, abits);
800 prev = cur;
801 run = 0;
802 } else {
803 run++;
804 }
805 } while (idx < num_coeffs);
806
807 if (run) {
808 if (run < 0x10)
809 bits += 4;
810 else
811 bits += 15;
812 }
813
814 return bits;
815 }
816
817 11100 static int find_slice_quant(AVCodecContext *avctx,
818 int trellis_node, int x, int y, int mbs_per_slice,
819 ProresThreadData *td)
820 {
821 11100 ProresContext *ctx = avctx->priv_data;
822 int i, q, pq, xp, yp;
823 const uint16_t *src;
824 11100 int slice_width_factor = av_log2(mbs_per_slice);
825 int num_cblocks[MAX_PLANES], pwidth;
826 int plane_factor[MAX_PLANES], is_chroma[MAX_PLANES];
827 11100 const int min_quant = ctx->profile_info->min_quant;
828 11100 const int max_quant = ctx->profile_info->max_quant;
829 int error, bits, bits_limit;
830 int mbs, prev, cur, new_score;
831 int slice_bits[TRELLIS_WIDTH], slice_score[TRELLIS_WIDTH];
832 int overquant;
833 uint16_t *qmat;
834 uint16_t *qmat_chroma;
835 int linesize[4], line_add;
836 11100 int alpha_bits = 0;
837
838
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11100 if (ctx->pictures_per_frame == 1)
839 11100 line_add = 0;
840 else
841 line_add = ctx->cur_picture_idx ^ !ctx->pic->top_field_first;
842 11100 mbs = x + mbs_per_slice;
843
844
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44400 for (i = 0; i < ctx->num_planes; i++) {
845
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33300 is_chroma[i] = (i == 1 || i == 2);
846 33300 plane_factor[i] = slice_width_factor + 2;
847
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33300 if (is_chroma[i])
848 22200 plane_factor[i] += ctx->chroma_factor - 3;
849
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33300 if (!is_chroma[i] || ctx->chroma_factor == CFACTOR_Y444) {
850 11100 xp = x << 4;
851 11100 yp = y << 4;
852 11100 num_cblocks[i] = 4;
853 11100 pwidth = avctx->width;
854 } else {
855 22200 xp = x << 3;
856 22200 yp = y << 4;
857 22200 num_cblocks[i] = 2;
858 22200 pwidth = avctx->width >> 1;
859 }
860
861 33300 linesize[i] = ctx->pic->linesize[i] * ctx->pictures_per_frame;
862 33300 src = (const uint16_t *)(ctx->pic->data[i] + yp * linesize[i] +
863 33300 line_add * ctx->pic->linesize[i]) + xp;
864
865
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33300 if (i < 3) {
866 33300 get_slice_data(ctx, src, linesize[i], xp, yp,
867 33300 pwidth, avctx->height / ctx->pictures_per_frame,
868 33300 td->blocks[i], td->emu_buf,
869 mbs_per_slice, num_cblocks[i], is_chroma[i]);
870 } else {
871 get_alpha_data(ctx, src, linesize[i], xp, yp,
872 pwidth, avctx->height / ctx->pictures_per_frame,
873 td->blocks[i], mbs_per_slice, ctx->alpha_bits);
874 }
875 }
876
877
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88800 for (q = min_quant; q < max_quant + 2; q++) {
878 77700 td->nodes[trellis_node + q].prev_node = -1;
879 77700 td->nodes[trellis_node + q].quant = q;
880 }
881
882
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11100 if (ctx->alpha_bits)
883 alpha_bits = estimate_alpha_plane(ctx, src, linesize[3],
884 mbs_per_slice, td->blocks[3]);
885 // todo: maybe perform coarser quantising to fit into frame size when needed
886
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77700 for (q = min_quant; q <= max_quant; q++) {
887 66600 bits = alpha_bits;
888 66600 error = 0;
889 133200 bits += estimate_slice_plane(ctx, &error, 0,
890 66600 src, linesize[0],
891 mbs_per_slice,
892 num_cblocks[0], plane_factor[0],
893 66600 ctx->quants[q], td); /* estimate luma plane */
894
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199800 for (i = 1; i < ctx->num_planes - !!ctx->alpha_bits; i++) { /* estimate chroma plane */
895 133200 bits += estimate_slice_plane(ctx, &error, i,
896 133200 src, linesize[i],
897 mbs_per_slice,
898 num_cblocks[i], plane_factor[i],
899 133200 ctx->quants_chroma[q], td);
900 }
901
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66600 if (bits > 65000 * 8)
902 error = SCORE_LIMIT;
903
904 66600 slice_bits[q] = bits;
905 66600 slice_score[q] = error;
906 }
907
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11100 if (slice_bits[max_quant] <= ctx->bits_per_mb * mbs_per_slice) {
908 3643 slice_bits[max_quant + 1] = slice_bits[max_quant];
909 3643 slice_score[max_quant + 1] = slice_score[max_quant] + 1;
910 3643 overquant = max_quant;
911 } else {
912
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59962 for (q = max_quant + 1; q < 128; q++) {
913 59962 bits = alpha_bits;
914 59962 error = 0;
915
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59962 if (q < MAX_STORED_Q) {
916 44939 qmat = ctx->quants[q];
917 44939 qmat_chroma = ctx->quants_chroma[q];
918 } else {
919 15023 qmat = td->custom_q;
920 15023 qmat_chroma = td->custom_chroma_q;
921
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976495 for (i = 0; i < 64; i++) {
922 961472 qmat[i] = ctx->quant_mat[i] * q;
923 961472 qmat_chroma[i] = ctx->quant_chroma_mat[i] * q;
924 }
925 }
926 119924 bits += estimate_slice_plane(ctx, &error, 0,
927 59962 src, linesize[0],
928 mbs_per_slice,
929 num_cblocks[0], plane_factor[0],
930 qmat, td);/* estimate luma plane */
931
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179886 for (i = 1; i < ctx->num_planes - !!ctx->alpha_bits; i++) { /* estimate chroma plane */
932 119924 bits += estimate_slice_plane(ctx, &error, i,
933 119924 src, linesize[i],
934 mbs_per_slice,
935 num_cblocks[i], plane_factor[i],
936 qmat_chroma, td);
937 }
938
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59962 if (bits <= ctx->bits_per_mb * mbs_per_slice)
939 7457 break;
940 }
941
942 7457 slice_bits[max_quant + 1] = bits;
943 7457 slice_score[max_quant + 1] = error;
944 7457 overquant = q;
945 }
946 11100 td->nodes[trellis_node + max_quant + 1].quant = overquant;
947
948 11100 bits_limit = mbs * ctx->bits_per_mb;
949
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88800 for (pq = min_quant; pq < max_quant + 2; pq++) {
950 77700 prev = trellis_node - TRELLIS_WIDTH + pq;
951
952
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621600 for (q = min_quant; q < max_quant + 2; q++) {
953 543900 cur = trellis_node + q;
954
955 543900 bits = td->nodes[prev].bits + slice_bits[q];
956 543900 error = slice_score[q];
957
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543900 if (bits > bits_limit)
958 438632 error = SCORE_LIMIT;
959
960
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543900 if (td->nodes[prev].score < SCORE_LIMIT && error < SCORE_LIMIT)
961 98480 new_score = td->nodes[prev].score + error;
962 else
963 445420 new_score = SCORE_LIMIT;
964
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543900 if (td->nodes[cur].prev_node == -1 ||
965
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466200 td->nodes[cur].score >= new_score) {
966
967 505564 td->nodes[cur].bits = bits;
968 505564 td->nodes[cur].score = new_score;
969 505564 td->nodes[cur].prev_node = prev;
970 }
971 }
972 }
973
974 11100 error = td->nodes[trellis_node + min_quant].score;
975 11100 pq = trellis_node + min_quant;
976
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77700 for (q = min_quant + 1; q < max_quant + 2; q++) {
977
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66600 if (td->nodes[trellis_node + q].score <= error) {
978 52033 error = td->nodes[trellis_node + q].score;
979 52033 pq = trellis_node + q;
980 }
981 }
982
983 11100 return pq;
984 }
985
986 2850 static int find_quant_thread(AVCodecContext *avctx, void *arg,
987 int jobnr, int threadnr)
988 {
989 2850 ProresContext *ctx = avctx->priv_data;
990 2850 ProresThreadData *td = ctx->tdata + threadnr;
991 2850 int mbs_per_slice = ctx->mbs_per_slice;
992 2850 int x, y = jobnr, mb, q = 0;
993
994
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13950 for (x = mb = 0; x < ctx->mb_width; x += mbs_per_slice, mb++) {
995
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16950 while (ctx->mb_width - x < mbs_per_slice)
996 5850 mbs_per_slice >>= 1;
997 11100 q = find_slice_quant(avctx,
998 11100 (mb + 1) * TRELLIS_WIDTH, x, y,
999 mbs_per_slice, td);
1000 }
1001
1002
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13950 for (x = ctx->slices_width - 1; x >= 0; x--) {
1003 11100 ctx->slice_q[x + y * ctx->slices_width] = td->nodes[q].quant;
1004 11100 q = td->nodes[q].prev_node;
1005 }
1006
1007 2850 return 0;
1008 }
1009
1010 200 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1011 const AVFrame *pic, int *got_packet)
1012 {
1013 200 ProresContext *ctx = avctx->priv_data;
1014 uint8_t *orig_buf, *buf, *slice_hdr, *slice_sizes, *tmp;
1015 uint8_t *picture_size_pos;
1016 PutBitContext pb;
1017 200 int x, y, i, mb, q = 0;
1018 200 int sizes[4] = { 0 };
1019 200 int slice_hdr_size = 2 + 2 * (ctx->num_planes - 1);
1020 int frame_size, picture_size, slice_size;
1021 int pkt_size, ret;
1022 200 int max_slice_size = (ctx->frame_size_upper_bound - 200) / (ctx->pictures_per_frame * ctx->slices_per_picture + 1);
1023 uint8_t frame_flags;
1024
1025 200 ctx->pic = pic;
1026 200 pkt_size = ctx->frame_size_upper_bound;
1027
1028
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200 if ((ret = ff_alloc_packet(avctx, pkt, pkt_size + AV_INPUT_BUFFER_MIN_SIZE)) < 0)
1029 return ret;
1030
1031 200 orig_buf = pkt->data;
1032
1033 // frame atom
1034 200 orig_buf += 4; // frame size
1035 200 bytestream_put_be32 (&orig_buf, FRAME_ID); // frame container ID
1036 200 buf = orig_buf;
1037
1038 // frame header
1039 200 tmp = buf;
1040 200 buf += 2; // frame header size will be stored here
1041 200 bytestream_put_be16 (&buf, 0); // version 1
1042 200 bytestream_put_buffer(&buf, ctx->vendor, 4);
1043 200 bytestream_put_be16 (&buf, avctx->width);
1044 200 bytestream_put_be16 (&buf, avctx->height);
1045
1046 200 frame_flags = ctx->chroma_factor << 6;
1047
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200 if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT)
1048 frame_flags |= pic->top_field_first ? 0x04 : 0x08;
1049 200 bytestream_put_byte (&buf, frame_flags);
1050
1051 200 bytestream_put_byte (&buf, 0); // reserved
1052 200 bytestream_put_byte (&buf, pic->color_primaries);
1053 200 bytestream_put_byte (&buf, pic->color_trc);
1054 200 bytestream_put_byte (&buf, pic->colorspace);
1055 200 bytestream_put_byte (&buf, 0x40 | (ctx->alpha_bits >> 3));
1056 200 bytestream_put_byte (&buf, 0); // reserved
1057
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200 if (ctx->quant_sel != QUANT_MAT_DEFAULT) {
1058 200 bytestream_put_byte (&buf, 0x03); // matrix flags - both matrices are present
1059 // luma quantisation matrix
1060
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13000 for (i = 0; i < 64; i++)
1061 12800 bytestream_put_byte(&buf, ctx->quant_mat[i]);
1062 // chroma quantisation matrix
1063
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13000 for (i = 0; i < 64; i++)
1064 12800 bytestream_put_byte(&buf, ctx->quant_mat[i]);
1065 } else {
1066 bytestream_put_byte (&buf, 0x00); // matrix flags - default matrices are used
1067 }
1068 200 bytestream_put_be16 (&tmp, buf - orig_buf); // write back frame header size
1069
1070 200 for (ctx->cur_picture_idx = 0;
1071
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400 ctx->cur_picture_idx < ctx->pictures_per_frame;
1072 200 ctx->cur_picture_idx++) {
1073 // picture header
1074 200 picture_size_pos = buf + 1;
1075 200 bytestream_put_byte (&buf, 0x40); // picture header size (in bits)
1076 200 buf += 4; // picture data size will be stored here
1077 200 bytestream_put_be16 (&buf, ctx->slices_per_picture);
1078 200 bytestream_put_byte (&buf, av_log2(ctx->mbs_per_slice) << 4); // slice width and height in MBs
1079
1080 // seek table - will be filled during slice encoding
1081 200 slice_sizes = buf;
1082 200 buf += ctx->slices_per_picture * 2;
1083
1084 // slices
1085
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200 if (!ctx->force_quant) {
1086 200 ret = avctx->execute2(avctx, find_quant_thread, (void*)pic, NULL,
1087 ctx->mb_height);
1088
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200 if (ret)
1089 return ret;
1090 }
1091
1092
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3050 for (y = 0; y < ctx->mb_height; y++) {
1093 2850 int mbs_per_slice = ctx->mbs_per_slice;
1094
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13950 for (x = mb = 0; x < ctx->mb_width; x += mbs_per_slice, mb++) {
1095 22200 q = ctx->force_quant ? ctx->force_quant
1096
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11100 : ctx->slice_q[mb + y * ctx->slices_width];
1097
1098
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16950 while (ctx->mb_width - x < mbs_per_slice)
1099 5850 mbs_per_slice >>= 1;
1100
1101 11100 bytestream_put_byte(&buf, slice_hdr_size << 3);
1102 11100 slice_hdr = buf;
1103 11100 buf += slice_hdr_size - 1;
1104
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11100 if (pkt_size <= buf - orig_buf + 2 * max_slice_size) {
1105 uint8_t *start = pkt->data;
1106 // Recompute new size according to max_slice_size
1107 // and deduce delta
1108 int delta = 200 + (ctx->pictures_per_frame *
1109 ctx->slices_per_picture + 1) *
1110 max_slice_size - pkt_size;
1111
1112 delta = FFMAX(delta, 2 * max_slice_size);
1113 ctx->frame_size_upper_bound += delta;
1114
1115 if (!ctx->warn) {
1116 avpriv_request_sample(avctx,
1117 "Packet too small: is %i,"
1118 " needs %i (slice: %i). "
1119 "Correct allocation",
1120 pkt_size, delta, max_slice_size);
1121 ctx->warn = 1;
1122 }
1123
1124 ret = av_grow_packet(pkt, delta);
1125 if (ret < 0)
1126 return ret;
1127
1128 pkt_size += delta;
1129 // restore pointers
1130 orig_buf = pkt->data + (orig_buf - start);
1131 buf = pkt->data + (buf - start);
1132 picture_size_pos = pkt->data + (picture_size_pos - start);
1133 slice_sizes = pkt->data + (slice_sizes - start);
1134 slice_hdr = pkt->data + (slice_hdr - start);
1135 tmp = pkt->data + (tmp - start);
1136 }
1137 11100 init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)));
1138 11100 ret = encode_slice(avctx, pic, &pb, sizes, x, y, q,
1139 mbs_per_slice);
1140
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11100 if (ret < 0)
1141 return ret;
1142
1143 11100 bytestream_put_byte(&slice_hdr, q);
1144 11100 slice_size = slice_hdr_size + sizes[ctx->num_planes - 1];
1145
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33300 for (i = 0; i < ctx->num_planes - 1; i++) {
1146 22200 bytestream_put_be16(&slice_hdr, sizes[i]);
1147 22200 slice_size += sizes[i];
1148 }
1149 11100 bytestream_put_be16(&slice_sizes, slice_size);
1150 11100 buf += slice_size - slice_hdr_size;
1151
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11100 if (max_slice_size < slice_size)
1152 216 max_slice_size = slice_size;
1153 }
1154 }
1155
1156 200 picture_size = buf - (picture_size_pos - 1);
1157 200 bytestream_put_be32(&picture_size_pos, picture_size);
1158 }
1159
1160 200 orig_buf -= 8;
1161 200 frame_size = buf - orig_buf;
1162 200 bytestream_put_be32(&orig_buf, frame_size);
1163
1164 200 pkt->size = frame_size;
1165 200 *got_packet = 1;
1166
1167 200 return 0;
1168 }
1169
1170 4 static av_cold int encode_close(AVCodecContext *avctx)
1171 {
1172 4 ProresContext *ctx = avctx->priv_data;
1173 int i;
1174
1175
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4 if (ctx->tdata) {
1176
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8 for (i = 0; i < avctx->thread_count; i++)
1177 4 av_freep(&ctx->tdata[i].nodes);
1178 }
1179 4 av_freep(&ctx->tdata);
1180 4 av_freep(&ctx->slice_q);
1181
1182 4 return 0;
1183 }
1184
1185 957600 static void prores_fdct(FDCTDSPContext *fdsp, const uint16_t *src,
1186 ptrdiff_t linesize, int16_t *block)
1187 {
1188 int x, y;
1189 957600 const uint16_t *tsrc = src;
1190
1191
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8618400 for (y = 0; y < 8; y++) {
1192
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68947200 for (x = 0; x < 8; x++)
1193 61286400 block[y * 8 + x] = tsrc[x];
1194 7660800 tsrc += linesize >> 1;
1195 }
1196 957600 fdsp->fdct(block);
1197 957600 }
1198
1199 4 static av_cold int encode_init(AVCodecContext *avctx)
1200 {
1201 4 ProresContext *ctx = avctx->priv_data;
1202 int mps;
1203 int i, j;
1204 int min_quant, max_quant;
1205 4 int interlaced = !!(avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT);
1206
1207 4 avctx->bits_per_raw_sample = 10;
1208
1209 4 ctx->fdct = prores_fdct;
1210 4 ctx->scantable = interlaced ? ff_prores_interlaced_scan
1211
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4 : ff_prores_progressive_scan;
1212 4 ff_fdctdsp_init(&ctx->fdsp, avctx);
1213
1214 4 mps = ctx->mbs_per_slice;
1215
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4 if (mps & (mps - 1)) {
1216 av_log(avctx, AV_LOG_ERROR,
1217 "there should be an integer power of two MBs per slice\n");
1218 return AVERROR(EINVAL);
1219 }
1220
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4 if (ctx->profile == PRORES_PROFILE_AUTO) {
1221 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
1222 ctx->profile = (desc->flags & AV_PIX_FMT_FLAG_ALPHA ||
1223 !(desc->log2_chroma_w + desc->log2_chroma_h))
1224 ? PRORES_PROFILE_4444 : PRORES_PROFILE_HQ;
1225 av_log(avctx, AV_LOG_INFO, "Autoselected %s. It can be overridden "
1226 "through -profile option.\n", ctx->profile == PRORES_PROFILE_4444
1227 ? "4:4:4:4 profile because of the used input colorspace"
1228 : "HQ profile to keep best quality");
1229 }
1230
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4 if (av_pix_fmt_desc_get(avctx->pix_fmt)->flags & AV_PIX_FMT_FLAG_ALPHA) {
1231 if (ctx->profile != PRORES_PROFILE_4444 &&
1232 ctx->profile != PRORES_PROFILE_4444XQ) {
1233 // force alpha and warn
1234 av_log(avctx, AV_LOG_WARNING, "Profile selected will not "
1235 "encode alpha. Override with -profile if needed.\n");
1236 ctx->alpha_bits = 0;
1237 }
1238 if (ctx->alpha_bits & 7) {
1239 av_log(avctx, AV_LOG_ERROR, "alpha bits should be 0, 8 or 16\n");
1240 return AVERROR(EINVAL);
1241 }
1242 avctx->bits_per_coded_sample = 32;
1243 } else {
1244 4 ctx->alpha_bits = 0;
1245 }
1246
1247 8 ctx->chroma_factor = avctx->pix_fmt == AV_PIX_FMT_YUV422P10
1248 ? CFACTOR_Y422
1249
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4 : CFACTOR_Y444;
1250 4 ctx->profile_info = prores_profile_info + ctx->profile;
1251
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4 ctx->num_planes = 3 + !!ctx->alpha_bits;
1252
1253 4 ctx->mb_width = FFALIGN(avctx->width, 16) >> 4;
1254
1255
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4 if (interlaced)
1256 ctx->mb_height = FFALIGN(avctx->height, 32) >> 5;
1257 else
1258 4 ctx->mb_height = FFALIGN(avctx->height, 16) >> 4;
1259
1260 4 ctx->slices_width = ctx->mb_width / mps;
1261 4 ctx->slices_width += av_popcount(ctx->mb_width - ctx->slices_width * mps);
1262 4 ctx->slices_per_picture = ctx->mb_height * ctx->slices_width;
1263 4 ctx->pictures_per_frame = 1 + interlaced;
1264
1265
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4 if (ctx->quant_sel == -1) {
1266 4 ctx->quant_mat = prores_quant_matrices[ctx->profile_info->quant];
1267 4 ctx->quant_chroma_mat = prores_quant_matrices[ctx->profile_info->quant_chroma];
1268 } else {
1269 ctx->quant_mat = prores_quant_matrices[ctx->quant_sel];
1270 ctx->quant_chroma_mat = prores_quant_matrices[ctx->quant_sel];
1271 }
1272
1273
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4 if (strlen(ctx->vendor) != 4) {
1274 av_log(avctx, AV_LOG_ERROR, "vendor ID should be 4 bytes\n");
1275 return AVERROR_INVALIDDATA;
1276 }
1277
1278 4 ctx->force_quant = avctx->global_quality / FF_QP2LAMBDA;
1279
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4 if (!ctx->force_quant) {
1280
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4 if (!ctx->bits_per_mb) {
1281
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4 for (i = 0; i < NUM_MB_LIMITS - 1; i++)
1282 4 if (prores_mb_limits[i] >= ctx->mb_width * ctx->mb_height *
1283
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4 ctx->pictures_per_frame)
1284 4 break;
1285 4 ctx->bits_per_mb = ctx->profile_info->br_tab[i];
1286
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4 if (ctx->alpha_bits)
1287 ctx->bits_per_mb *= 20;
1288 } else if (ctx->bits_per_mb < 128) {
1289 av_log(avctx, AV_LOG_ERROR, "too few bits per MB, please set at least 128\n");
1290 return AVERROR_INVALIDDATA;
1291 }
1292
1293 4 min_quant = ctx->profile_info->min_quant;
1294 4 max_quant = ctx->profile_info->max_quant;
1295
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64 for (i = min_quant; i < MAX_STORED_Q; i++) {
1296
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3900 for (j = 0; j < 64; j++) {
1297 3840 ctx->quants[i][j] = ctx->quant_mat[j] * i;
1298 3840 ctx->quants_chroma[i][j] = ctx->quant_chroma_mat[j] * i;
1299 }
1300 }
1301
1302 4 ctx->slice_q = av_malloc_array(ctx->slices_per_picture, sizeof(*ctx->slice_q));
1303
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4 if (!ctx->slice_q)
1304 return AVERROR(ENOMEM);
1305
1306 4 ctx->tdata = av_calloc(avctx->thread_count, sizeof(*ctx->tdata));
1307
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4 if (!ctx->tdata)
1308 return AVERROR(ENOMEM);
1309
1310
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8 for (j = 0; j < avctx->thread_count; j++) {
1311 4 ctx->tdata[j].nodes = av_malloc_array(ctx->slices_width + 1,
1312 TRELLIS_WIDTH
1313 * sizeof(*ctx->tdata->nodes));
1314
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4 if (!ctx->tdata[j].nodes)
1315 return AVERROR(ENOMEM);
1316
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32 for (i = min_quant; i < max_quant + 2; i++) {
1317 28 ctx->tdata[j].nodes[i].prev_node = -1;
1318 28 ctx->tdata[j].nodes[i].bits = 0;
1319 28 ctx->tdata[j].nodes[i].score = 0;
1320 }
1321 }
1322 } else {
1323 int ls = 0;
1324 int ls_chroma = 0;
1325
1326 if (ctx->force_quant > 64) {
1327 av_log(avctx, AV_LOG_ERROR, "too large quantiser, maximum is 64\n");
1328 return AVERROR_INVALIDDATA;
1329 }
1330
1331 for (j = 0; j < 64; j++) {
1332 ctx->quants[0][j] = ctx->quant_mat[j] * ctx->force_quant;
1333 ctx->quants_chroma[0][j] = ctx->quant_chroma_mat[j] * ctx->force_quant;
1334 ls += av_log2((1 << 11) / ctx->quants[0][j]) * 2 + 1;
1335 ls_chroma += av_log2((1 << 11) / ctx->quants_chroma[0][j]) * 2 + 1;
1336 }
1337
1338 ctx->bits_per_mb = ls * 4 + ls_chroma * 4;
1339 if (ctx->chroma_factor == CFACTOR_Y444)
1340 ctx->bits_per_mb += ls_chroma * 4;
1341 }
1342
1343 4 ctx->frame_size_upper_bound = (ctx->pictures_per_frame *
1344 4 ctx->slices_per_picture + 1) *
1345 4 (2 + 2 * ctx->num_planes +
1346 4 (mps * ctx->bits_per_mb) / 8)
1347 4 + 200;
1348
1349
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4 if (ctx->alpha_bits) {
1350 // The alpha plane is run-coded and might exceed the bit budget.
1351 ctx->frame_size_upper_bound += (ctx->pictures_per_frame *
1352 ctx->slices_per_picture + 1) *
1353 /* num pixels per slice */ (ctx->mbs_per_slice * 256 *
1354 /* bits per pixel */ (1 + ctx->alpha_bits + 1) + 7 >> 3);
1355 }
1356
1357 4 avctx->codec_tag = ctx->profile_info->tag;
1358
1359
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4 av_log(avctx, AV_LOG_DEBUG,
1360 "profile %d, %d slices, interlacing: %s, %d bits per MB\n",
1361 4 ctx->profile, ctx->slices_per_picture * ctx->pictures_per_frame,
1362 interlaced ? "yes" : "no", ctx->bits_per_mb);
1363 4 av_log(avctx, AV_LOG_DEBUG, "frame size upper bound: %d\n",
1364 ctx->frame_size_upper_bound);
1365
1366 4 return 0;
1367 }
1368
1369 #define OFFSET(x) offsetof(ProresContext, x)
1370 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1371
1372 static const AVOption options[] = {
1373 { "mbs_per_slice", "macroblocks per slice", OFFSET(mbs_per_slice),
1374 AV_OPT_TYPE_INT, { .i64 = 8 }, 1, MAX_MBS_PER_SLICE, VE },
1375 { "profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT,
1376 { .i64 = PRORES_PROFILE_AUTO },
1377 PRORES_PROFILE_AUTO, PRORES_PROFILE_4444XQ, VE, "profile" },
1378 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_AUTO },
1379 0, 0, VE, "profile" },
1380 { "proxy", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_PROXY },
1381 0, 0, VE, "profile" },
1382 { "lt", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_LT },
1383 0, 0, VE, "profile" },
1384 { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_STANDARD },
1385 0, 0, VE, "profile" },
1386 { "hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_HQ },
1387 0, 0, VE, "profile" },
1388 { "4444", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_4444 },
1389 0, 0, VE, "profile" },
1390 { "4444xq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_4444XQ },
1391 0, 0, VE, "profile" },
1392 { "vendor", "vendor ID", OFFSET(vendor),
1393 AV_OPT_TYPE_STRING, { .str = "Lavc" }, 0, 0, VE },
1394 { "bits_per_mb", "desired bits per macroblock", OFFSET(bits_per_mb),
1395 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8192, VE },
1396 { "quant_mat", "quantiser matrix", OFFSET(quant_sel), AV_OPT_TYPE_INT,
1397 { .i64 = -1 }, -1, QUANT_MAT_DEFAULT, VE, "quant_mat" },
1398 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 },
1399 0, 0, VE, "quant_mat" },
1400 { "proxy", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_PROXY },
1401 0, 0, VE, "quant_mat" },
1402 { "lt", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_LT },
1403 0, 0, VE, "quant_mat" },
1404 { "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_STANDARD },
1405 0, 0, VE, "quant_mat" },
1406 { "hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_HQ },
1407 0, 0, VE, "quant_mat" },
1408 { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_DEFAULT },
1409 0, 0, VE, "quant_mat" },
1410 { "alpha_bits", "bits for alpha plane", OFFSET(alpha_bits), AV_OPT_TYPE_INT,
1411 { .i64 = 16 }, 0, 16, VE },
1412 { NULL }
1413 };
1414
1415 static const AVClass proresenc_class = {
1416 .class_name = "ProRes encoder",
1417 .item_name = av_default_item_name,
1418 .option = options,
1419 .version = LIBAVUTIL_VERSION_INT,
1420 };
1421
1422 const FFCodec ff_prores_ks_encoder = {
1423 .p.name = "prores_ks",
1424 CODEC_LONG_NAME("Apple ProRes (iCodec Pro)"),
1425 .p.type = AVMEDIA_TYPE_VIDEO,
1426 .p.id = AV_CODEC_ID_PRORES,
1427 .priv_data_size = sizeof(ProresContext),
1428 .init = encode_init,
1429 .close = encode_close,
1430 FF_CODEC_ENCODE_CB(encode_frame),
1431 .p.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
1432 .p.pix_fmts = (const enum AVPixelFormat[]) {
1433 AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
1434 AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE
1435 },
1436 .p.priv_class = &proresenc_class,
1437 .p.profiles = NULL_IF_CONFIG_SMALL(ff_prores_profiles),
1438 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1439 };
1440