FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/dnxhdenc.c
Date: 2025-12-07 22:02:57
Exec Total Coverage
Lines: 680 798 85.2%
Functions: 30 31 96.8%
Branches: 305 415 73.5%
Line Branch Exec Source
1 /*
2 * VC3/DNxHD encoder
3 * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
4 * Copyright (c) 2011 MirriAd Ltd
5 *
6 * VC-3 encoder funded by the British Broadcasting Corporation
7 * 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
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/attributes.h"
27 #include "libavutil/internal.h"
28 #include "libavutil/mem.h"
29 #include "libavutil/mem_internal.h"
30 #include "libavutil/opt.h"
31
32 #include "avcodec.h"
33 #include "blockdsp.h"
34 #include "codec_internal.h"
35 #include "encode.h"
36 #include "fdctdsp.h"
37 #include "mathops.h"
38 #include "mpegvideo.h"
39 #include "mpegvideoenc.h"
40 #include "pixblockdsp.h"
41 #include "profiles.h"
42 #include "dnxhdenc.h"
43
44 // The largest value that will not lead to overflow for 10-bit samples.
45 #define DNX10BIT_QMAT_SHIFT 18
46 #define RC_VARIANCE 1 // use variance or ssd for fast rc
47 #define LAMBDA_FRAC_BITS 10
48
49 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
50 static const AVOption options[] = {
51 { "nitris_compat", "encode with Avid Nitris compatibility",
52 offsetof(DNXHDEncContext, nitris_compat), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
53 { "ibias", "intra quant bias",
54 offsetof(DNXHDEncContext, intra_quant_bias), AV_OPT_TYPE_INT,
55 { .i64 = 0 }, INT_MIN, INT_MAX, VE },
56 { "profile", NULL, offsetof(DNXHDEncContext, profile), AV_OPT_TYPE_INT,
57 { .i64 = AV_PROFILE_DNXHD },
58 AV_PROFILE_DNXHD, AV_PROFILE_DNXHR_444, VE, .unit = "profile" },
59 { "dnxhd", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHD },
60 0, 0, VE, .unit = "profile" },
61 { "dnxhr_444", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHR_444 },
62 0, 0, VE, .unit = "profile" },
63 { "dnxhr_hqx", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHR_HQX },
64 0, 0, VE, .unit = "profile" },
65 { "dnxhr_hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHR_HQ },
66 0, 0, VE, .unit = "profile" },
67 { "dnxhr_sq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHR_SQ },
68 0, 0, VE, .unit = "profile" },
69 { "dnxhr_lb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_DNXHR_LB },
70 0, 0, VE, .unit = "profile" },
71 { NULL }
72 };
73
74 static const AVClass dnxhd_class = {
75 .class_name = "dnxhd",
76 .item_name = av_default_item_name,
77 .option = options,
78 .version = LIBAVUTIL_VERSION_INT,
79 };
80
81 97920 static void dnxhd_8bit_get_pixels_8x4_sym(int16_t *restrict block,
82 const uint8_t *pixels,
83 ptrdiff_t line_size)
84 {
85 int i;
86
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 489600 for (i = 0; i < 4; i++) {
87 391680 block[0] = pixels[0];
88 391680 block[1] = pixels[1];
89 391680 block[2] = pixels[2];
90 391680 block[3] = pixels[3];
91 391680 block[4] = pixels[4];
92 391680 block[5] = pixels[5];
93 391680 block[6] = pixels[6];
94 391680 block[7] = pixels[7];
95 391680 pixels += line_size;
96 391680 block += 8;
97 }
98 97920 memcpy(block, block - 8, sizeof(*block) * 8);
99 97920 memcpy(block + 8, block - 16, sizeof(*block) * 8);
100 97920 memcpy(block + 16, block - 24, sizeof(*block) * 8);
101 97920 memcpy(block + 24, block - 32, sizeof(*block) * 8);
102 97920 }
103
104 static av_always_inline
105 43200 void dnxhd_10bit_get_pixels_8x4_sym(int16_t *restrict block,
106 const uint8_t *pixels,
107 ptrdiff_t line_size)
108 {
109 43200 memcpy(block + 0 * 8, pixels + 0 * line_size, 8 * sizeof(*block));
110 43200 memcpy(block + 7 * 8, pixels + 0 * line_size, 8 * sizeof(*block));
111 43200 memcpy(block + 1 * 8, pixels + 1 * line_size, 8 * sizeof(*block));
112 43200 memcpy(block + 6 * 8, pixels + 1 * line_size, 8 * sizeof(*block));
113 43200 memcpy(block + 2 * 8, pixels + 2 * line_size, 8 * sizeof(*block));
114 43200 memcpy(block + 5 * 8, pixels + 2 * line_size, 8 * sizeof(*block));
115 43200 memcpy(block + 3 * 8, pixels + 3 * line_size, 8 * sizeof(*block));
116 43200 memcpy(block + 4 * 8, pixels + 3 * line_size, 8 * sizeof(*block));
117 43200 }
118
119 ✗ static int dnxhd_10bit_dct_quantize_444(MPVEncContext *ctx, int16_t *block,
120 int n, int qscale, int *overflow)
121 {
122 int i, j, level, last_non_zero, start_i;
123 const int *qmat;
124 ✗ const uint8_t *scantable = ctx->c.intra_scantable.scantable;
125 int bias;
126 ✗ int max = 0;
127 unsigned int threshold1, threshold2;
128
129 ✗ ctx->fdsp.fdct(block);
130
131 ✗ block[0] = (block[0] + 2) >> 2;
132 ✗ start_i = 1;
133 ✗ last_non_zero = 0;
134 ✗ qmat = n < 4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
135 ✗ bias= ctx->intra_quant_bias * (1 << (16 - 8));
136 ✗ threshold1 = (1 << 16) - bias - 1;
137 ✗ threshold2 = (threshold1 << 1);
138
139 ✗ for (i = 63; i >= start_i; i--) {
140 ✗ j = scantable[i];
141 ✗ level = block[j] * qmat[j];
142
143 ✗ if (((unsigned)(level + threshold1)) > threshold2) {
144 ✗ last_non_zero = i;
145 ✗ break;
146 } else{
147 ✗ block[j]=0;
148 }
149 }
150
151 ✗ for (i = start_i; i <= last_non_zero; i++) {
152 ✗ j = scantable[i];
153 ✗ level = block[j] * qmat[j];
154
155 ✗ if (((unsigned)(level + threshold1)) > threshold2) {
156 ✗ if (level > 0) {
157 ✗ level = (bias + level) >> 16;
158 ✗ block[j] = level;
159 } else{
160 ✗ level = (bias - level) >> 16;
161 ✗ block[j] = -level;
162 }
163 ✗ max |= level;
164 } else {
165 ✗ block[j] = 0;
166 }
167 }
168 ✗ *overflow = ctx->max_qcoeff < max; //overflow might have happened
169
170 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
171 ✗ if (ctx->c.idsp.perm_type != FF_IDCT_PERM_NONE)
172 ✗ ff_block_permute(block, ctx->c.idsp.idct_permutation,
173 scantable, last_non_zero);
174
175 ✗ return last_non_zero;
176 }
177
178 3945600 static int dnxhd_10bit_dct_quantize(MPVEncContext *ctx, int16_t *block,
179 int n, int qscale, int *overflow)
180 {
181 3945600 const uint8_t *scantable = ctx->c.intra_scantable.scantable;
182
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 3945600 const int *qmat = n<4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
183 3945600 int last_non_zero = 0;
184 int i;
185
186 3945600 ctx->fdsp.fdct(block);
187
188 // Divide by 4 with rounding, to compensate scaling of DCT coefficients
189 3945600 block[0] = (block[0] + 2) >> 2;
190
191
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 252518400 for (i = 1; i < 64; ++i) {
192 248572800 int j = scantable[i];
193 248572800 int sign = FF_SIGNBIT(block[j]);
194 248572800 int level = (block[j] ^ sign) - sign;
195 248572800 level = level * qmat[j] >> DNX10BIT_QMAT_SHIFT;
196 248572800 block[j] = (level ^ sign) - sign;
197
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 248572800 if (level)
198 32824223 last_non_zero = i;
199 }
200
201 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
202
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 3945600 if (ctx->c.idsp.perm_type != FF_IDCT_PERM_NONE)
203 ✗ ff_block_permute(block, ctx->c.idsp.idct_permutation,
204 scantable, last_non_zero);
205
206 3945600 return last_non_zero;
207 }
208
209 73 static av_cold int dnxhd_init_vlc(DNXHDEncContext *ctx)
210 {
211 int i, j, level, run;
212 73 int max_level = 1 << (ctx->bit_depth + 2);
213
214
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 73 if (!FF_ALLOCZ_TYPED_ARRAY(ctx->orig_vlc_codes, max_level * 4) ||
215
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->orig_vlc_bits, max_level * 4) ||
216
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 73 !(ctx->run_codes = av_mallocz(63 * 2)) ||
217
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 73 !(ctx->run_bits = av_mallocz(63)))
218 ✗ return AVERROR(ENOMEM);
219 73 ctx->vlc_codes = ctx->orig_vlc_codes + max_level * 2;
220 73 ctx->vlc_bits = ctx->orig_vlc_bits + max_level * 2;
221
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 192585 for (level = -max_level; level < max_level; level++) {
222
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 577536 for (run = 0; run < 2; run++) {
223 385024 int index = level * (1 << 1) | run;
224 385024 int sign, offset = 0, alevel = level;
225
226 385024 MASK_ABS(sign, alevel);
227
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 385024 if (alevel > 64) {
228 366190 offset = (alevel - 1) >> 6;
229 366190 alevel -= offset << 6;
230 }
231
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232
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 65136947 if (ctx->cid_table->ac_info[2*j+0] >> 1 == alevel &&
233
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 1197496 (!offset || (ctx->cid_table->ac_info[2*j+1] & 1) && offset) &&
234
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 390917 (!run || (ctx->cid_table->ac_info[2*j+1] & 2) && run)) {
235 av_assert1(!ctx->vlc_codes[index]);
236
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 384951 if (alevel) {
237 384878 ctx->vlc_codes[index] =
238 384878 (ctx->cid_table->ac_codes[j] << 1) | (sign & 1);
239 384878 ctx->vlc_bits[index] = ctx->cid_table->ac_bits[j] + 1;
240 } else {
241 73 ctx->vlc_codes[index] = ctx->cid_table->ac_codes[j];
242 73 ctx->vlc_bits[index] = ctx->cid_table->ac_bits[j];
243 }
244 384951 break;
245 }
246 }
247
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 385024 av_assert0(!alevel || j < 257);
248
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 385024 if (offset) {
249 366190 ctx->vlc_codes[index] =
250 366190 (ctx->vlc_codes[index] << ctx->cid_table->index_bits) | offset;
251 366190 ctx->vlc_bits[index] += ctx->cid_table->index_bits;
252 }
253 }
254 }
255
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 4599 for (i = 0; i < 62; i++) {
256 4526 int run = ctx->cid_table->run[i];
257
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 4526 av_assert0(run < 63);
258 4526 ctx->run_codes[run] = ctx->cid_table->run_codes[i];
259 4526 ctx->run_bits[run] = ctx->cid_table->run_bits[i];
260 }
261 73 return 0;
262 }
263
264 73 static av_cold int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
265 {
266 // init first elem to 1 to avoid div by 0 in convert_matrix
267 73 uint16_t weight_matrix[64] = { 1, }; // convert_matrix needs uint16_t*
268 73 const uint8_t *luma_weight_table = ctx->cid_table->luma_weight;
269 73 const uint8_t *chroma_weight_table = ctx->cid_table->chroma_weight;
270
271
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 73 if (!FF_ALLOCZ_TYPED_ARRAY(ctx->qmatrix_l, ctx->m.c.avctx->qmax + 1) ||
272
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->qmatrix_c, ctx->m.c.avctx->qmax + 1) ||
273
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->qmatrix_l16, ctx->m.c.avctx->qmax + 1) ||
274
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->qmatrix_c16, ctx->m.c.avctx->qmax + 1))
275 ✗ return AVERROR(ENOMEM);
276
277
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 73 if (ctx->bit_depth == 8) {
278
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 4224 for (int i = 1; i < 64; i++) {
279 4158 int j = ctx->m.c.idsp.idct_permutation[ff_zigzag_direct[i]];
280 4158 weight_matrix[j] = ctx->cid_table->luma_weight[i];
281 }
282 66 ff_convert_matrix(&ctx->m, ctx->qmatrix_l, ctx->qmatrix_l16,
283 weight_matrix, ctx->intra_quant_bias, 1,
284 66 ctx->m.c.avctx->qmax, 1);
285
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 4224 for (int i = 1; i < 64; i++) {
286 4158 int j = ctx->m.c.idsp.idct_permutation[ff_zigzag_direct[i]];
287 4158 weight_matrix[j] = ctx->cid_table->chroma_weight[i];
288 }
289 66 ff_convert_matrix(&ctx->m, ctx->qmatrix_c, ctx->qmatrix_c16,
290 weight_matrix, ctx->intra_quant_bias, 1,
291 66 ctx->m.c.avctx->qmax, 1);
292
293
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 42250 for (int qscale = 1; qscale <= ctx->m.c.avctx->qmax; qscale++) {
294
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 2741960 for (int i = 0; i < 64; i++) {
295 2699776 ctx->qmatrix_l[qscale][i] <<= 2;
296 2699776 ctx->qmatrix_c[qscale][i] <<= 2;
297 2699776 ctx->qmatrix_l16[qscale][0][i] <<= 2;
298 2699776 ctx->qmatrix_l16[qscale][1][i] <<= 2;
299 2699776 ctx->qmatrix_c16[qscale][0][i] <<= 2;
300 2699776 ctx->qmatrix_c16[qscale][1][i] <<= 2;
301 }
302 }
303 } else {
304 // 10-bit
305
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 63 for (int qscale = 1; qscale <= ctx->m.c.avctx->qmax; qscale++) {
306
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 3584 for (int i = 1; i < 64; i++) {
307 3528 int j = ff_zigzag_direct[i];
308
309 /* The quantization formula from the VC-3 standard is:
310 * quantized = sign(block[i]) * floor(abs(block[i]/s) * p /
311 * (qscale * weight_table[i]))
312 * Where p is 32 for 8-bit samples and 8 for 10-bit ones.
313 * The s factor compensates scaling of DCT coefficients done by
314 * the DCT routines, and therefore is not present in standard.
315 * It's 8 for 8-bit samples and 4 for 10-bit ones.
316 * We want values of ctx->qtmatrix_l and ctx->qtmatrix_r to be:
317 * ((1 << DNX10BIT_QMAT_SHIFT) * (p / s)) /
318 * (qscale * weight_table[i])
319 * For 10-bit samples, p / s == 2 */
320 3528 ctx->qmatrix_l[qscale][j] = (1 << (DNX10BIT_QMAT_SHIFT + 1)) /
321 3528 (qscale * luma_weight_table[i]);
322 3528 ctx->qmatrix_c[qscale][j] = (1 << (DNX10BIT_QMAT_SHIFT + 1)) /
323 3528 (qscale * chroma_weight_table[i]);
324 }
325 }
326 }
327
328 73 ctx->m.q_chroma_intra_matrix16 = ctx->qmatrix_c16;
329 73 ctx->m.q_chroma_intra_matrix = ctx->qmatrix_c;
330 73 ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
331 73 ctx->m.q_intra_matrix = ctx->qmatrix_l;
332
333 73 return 0;
334 }
335
336 73 static av_cold int dnxhd_init_rc(DNXHDEncContext *ctx)
337 {
338
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 73 if (!FF_ALLOCZ_TYPED_ARRAY(ctx->mb_rc, (ctx->m.c.avctx->qmax + 1) * ctx->m.c.mb_num))
339 ✗ return AVERROR(ENOMEM);
340
341
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 73 if (ctx->m.c.avctx->mb_decision != FF_MB_DECISION_RD) {
342
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 58 if (!FF_ALLOCZ_TYPED_ARRAY(ctx->mb_cmp, ctx->m.c.mb_num) ||
343
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 58 !FF_ALLOCZ_TYPED_ARRAY(ctx->mb_cmp_tmp, ctx->m.c.mb_num))
344 ✗ return AVERROR(ENOMEM);
345 }
346 73 ctx->frame_bits = (ctx->coding_unit_size -
347 73 ctx->data_offset - 4 - ctx->min_padding) * 8;
348 73 ctx->qscale = 1;
349 73 ctx->lambda = 2 << LAMBDA_FRAC_BITS; // qscale 2
350 73 return 0;
351 }
352
353 73 static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
354 {
355 73 DNXHDEncContext *ctx = avctx->priv_data;
356 int i, ret;
357
358
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 73 switch (avctx->pix_fmt) {
359 66 case AV_PIX_FMT_YUV422P:
360 66 ctx->bit_depth = 8;
361 66 break;
362 7 case AV_PIX_FMT_YUV422P10:
363 case AV_PIX_FMT_YUV444P10:
364 case AV_PIX_FMT_GBRP10:
365 7 ctx->bit_depth = 10;
366 7 break;
367 }
368
369
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 73 if ((ctx->profile == AV_PROFILE_DNXHR_444 && (avctx->pix_fmt != AV_PIX_FMT_YUV444P10 &&
370 ✗ avctx->pix_fmt != AV_PIX_FMT_GBRP10)) ||
371
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 73 (ctx->profile != AV_PROFILE_DNXHR_444 && (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 ||
372
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 73 avctx->pix_fmt == AV_PIX_FMT_GBRP10))) {
373 ✗ av_log(avctx, AV_LOG_ERROR,
374 "pixel format is incompatible with DNxHD profile\n");
375 ✗ return AVERROR(EINVAL);
376 }
377
378
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 73 if (ctx->profile == AV_PROFILE_DNXHR_HQX && avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
379 ✗ av_log(avctx, AV_LOG_ERROR,
380 "pixel format is incompatible with DNxHR HQX profile\n");
381 ✗ return AVERROR(EINVAL);
382 }
383
384
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 73 if ((ctx->profile == AV_PROFILE_DNXHR_LB ||
385
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 61 ctx->profile == AV_PROFILE_DNXHR_SQ ||
386
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 73 ctx->profile == AV_PROFILE_DNXHR_HQ) && avctx->pix_fmt != AV_PIX_FMT_YUV422P) {
387 ✗ av_log(avctx, AV_LOG_ERROR,
388 "pixel format is incompatible with DNxHR LB/SQ/HQ profile\n");
389 ✗ return AVERROR(EINVAL);
390 }
391
392 73 ctx->is_444 = ctx->profile == AV_PROFILE_DNXHR_444;
393 73 avctx->profile = ctx->profile;
394 73 ctx->cid = ff_dnxhd_find_cid(avctx, ctx->bit_depth);
395
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 73 if (!ctx->cid) {
396 ✗ av_log(avctx, AV_LOG_ERROR,
397 "video parameters incompatible with DNxHD. Valid DNxHD profiles:\n");
398 ✗ ff_dnxhd_print_profiles(avctx, AV_LOG_ERROR);
399 ✗ return AVERROR(EINVAL);
400 }
401 73 av_log(avctx, AV_LOG_DEBUG, "cid %d\n", ctx->cid);
402
403
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 73 if (ctx->cid >= 1270 && ctx->cid <= 1274)
404 40 avctx->codec_tag = MKTAG('A','V','d','h');
405
406
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 73 if (avctx->width < 256 || avctx->height < 120) {
407 ✗ av_log(avctx, AV_LOG_ERROR,
408 "Input dimensions too small, input must be at least 256x120\n");
409 ✗ return AVERROR(EINVAL);
410 }
411
412 73 ctx->cid_table = ff_dnxhd_get_cid_table(ctx->cid);
413
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 73 av_assert0(ctx->cid_table);
414
415 73 ctx->m.c.avctx = avctx;
416 73 ctx->m.c.mb_intra = 1;
417 73 ctx->m.c.h263_aic = 1;
418
419 73 avctx->bits_per_raw_sample = ctx->bit_depth;
420
421 73 ff_blockdsp_init(&ctx->m.c.bdsp);
422 73 ff_fdctdsp_init(&ctx->m.fdsp, avctx);
423 73 ff_mpv_idct_init(&ctx->m.c);
424 73 ff_mpegvideoencdsp_init(&ctx->m.mpvencdsp, avctx);
425 73 ff_pixblockdsp_init(&ctx->m.pdsp, ctx->bit_depth);
426 73 ff_dct_encode_init(&ctx->m);
427
428
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 73 if (ctx->profile != AV_PROFILE_DNXHD)
429 40 ff_videodsp_init(&ctx->m.c.vdsp, ctx->bit_depth);
430
431
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 73 if (ctx->is_444 || ctx->profile == AV_PROFILE_DNXHR_HQX) {
432 ✗ ctx->m.dct_quantize = dnxhd_10bit_dct_quantize_444;
433 ✗ ctx->get_pixels_8x4_sym = dnxhd_10bit_get_pixels_8x4_sym;
434 ✗ ctx->block_width_l2 = 4;
435
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 73 } else if (ctx->bit_depth == 10) {
436 7 ctx->m.dct_quantize = dnxhd_10bit_dct_quantize;
437 7 ctx->get_pixels_8x4_sym = dnxhd_10bit_get_pixels_8x4_sym;
438 7 ctx->block_width_l2 = 4;
439 } else {
440 66 ctx->get_pixels_8x4_sym = dnxhd_8bit_get_pixels_8x4_sym;
441 66 ctx->block_width_l2 = 3;
442 }
443
444 73 ff_dnxhdenc_init(ctx);
445
446 73 ctx->m.c.mb_height = (avctx->height + 15) / 16;
447 73 ctx->m.c.mb_width = (avctx->width + 15) / 16;
448
449
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 73 if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
450 11 ctx->interlaced = 1;
451 11 ctx->m.c.mb_height /= 2;
452 }
453
454
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 73 if (ctx->interlaced && ctx->profile != AV_PROFILE_DNXHD) {
455 ✗ av_log(avctx, AV_LOG_ERROR,
456 "Interlaced encoding is not supported for DNxHR profiles.\n");
457 ✗ return AVERROR(EINVAL);
458 }
459
460 73 ctx->m.c.mb_num = ctx->m.c.mb_height * ctx->m.c.mb_width;
461
462
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 73 if (ctx->cid_table->frame_size == DNXHD_VARIABLE) {
463 40 ctx->frame_size = ff_dnxhd_get_hr_frame_size(ctx->cid,
464 avctx->width, avctx->height);
465
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 40 av_assert0(ctx->frame_size >= 0);
466 40 ctx->coding_unit_size = ctx->frame_size;
467 } else {
468 33 ctx->frame_size = ctx->cid_table->frame_size;
469 33 ctx->coding_unit_size = ctx->cid_table->coding_unit_size;
470 }
471
472
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 73 if (ctx->m.c.mb_height > 68)
473 12 ctx->data_offset = 0x170 + (ctx->m.c.mb_height << 2);
474 else
475 61 ctx->data_offset = 0x280;
476
477 // XXX tune lbias/cbias
478
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 73 if ((ret = dnxhd_init_qmat(ctx, ctx->intra_quant_bias, 0)) < 0)
479 ✗ return ret;
480
481 /* Avid Nitris hardware decoder requires a minimum amount of padding
482 * in the coding unit payload */
483
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 73 if (ctx->nitris_compat)
484 ✗ ctx->min_padding = 1600;
485
486
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 73 if ((ret = dnxhd_init_vlc(ctx)) < 0)
487 ✗ return ret;
488
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 73 if ((ret = dnxhd_init_rc(ctx)) < 0)
489 ✗ return ret;
490
491
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 73 if (!FF_ALLOCZ_TYPED_ARRAY(ctx->slice_size, ctx->m.c.mb_height) ||
492
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->slice_offs, ctx->m.c.mb_height) ||
493
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->mb_bits, ctx->m.c.mb_num) ||
494
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 73 !FF_ALLOCZ_TYPED_ARRAY(ctx->mb_qscale, ctx->m.c.mb_num))
495 ✗ return AVERROR(ENOMEM);
496
497
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 73 if (avctx->active_thread_type == FF_THREAD_SLICE) {
498 ✗ if (avctx->thread_count > MAX_THREADS) {
499 ✗ av_log(avctx, AV_LOG_ERROR, "too many threads\n");
500 ✗ return AVERROR(EINVAL);
501 }
502 }
503
504
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 73 if (avctx->qmax <= 1) {
505 ✗ av_log(avctx, AV_LOG_ERROR, "qmax must be at least 2\n");
506 ✗ return AVERROR(EINVAL);
507 }
508
509 73 ctx->thread[0] = ctx;
510
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 73 if (avctx->active_thread_type == FF_THREAD_SLICE) {
511 ✗ for (i = 1; i < avctx->thread_count; i++) {
512 ✗ ctx->thread[i] = av_memdup(ctx, sizeof(DNXHDEncContext));
513 ✗ if (!ctx->thread[i])
514 ✗ return AVERROR(ENOMEM);
515 }
516 }
517
518 73 return 0;
519 }
520
521 380 static int dnxhd_write_header(AVCodecContext *avctx, uint8_t *buf)
522 {
523 380 DNXHDEncContext *ctx = avctx->priv_data;
524
525 380 memset(buf, 0, ctx->data_offset);
526
527 // * write prefix */
528 380 AV_WB16(buf + 0x02, ctx->data_offset);
529
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 380 if (ctx->cid >= 1270 && ctx->cid <= 1274)
530 200 buf[4] = 0x03;
531 else
532 180 buf[4] = 0x01;
533
534
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 380 buf[5] = ctx->interlaced ? ctx->cur_field + 2 : 0x01;
535 380 buf[6] = 0x80; // crc flag off
536 380 buf[7] = 0xa0; // reserved
537 380 AV_WB16(buf + 0x18, avctx->height >> ctx->interlaced); // ALPF
538 380 AV_WB16(buf + 0x1a, avctx->width); // SPL
539 380 AV_WB16(buf + 0x1d, avctx->height >> ctx->interlaced); // NAL
540
541
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 380 buf[0x21] = ctx->bit_depth == 10 ? 0x58 : 0x38;
542 380 buf[0x22] = 0x88 + (ctx->interlaced << 2);
543 380 AV_WB32(buf + 0x28, ctx->cid); // CID
544
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 380 buf[0x2c] = (!ctx->interlaced << 7) | (ctx->is_444 << 6) | (avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
545
546 380 buf[0x5f] = 0x01; // UDL
547
548 380 buf[0x167] = 0x02; // reserved
549 380 AV_WB16(buf + 0x16a, ctx->m.c.mb_height * 4 + 4); // MSIPS
550 380 AV_WB16(buf + 0x16c, ctx->m.c.mb_height); // Ns
551 380 buf[0x16f] = 0x10; // reserved
552
553 380 ctx->msip = buf + 0x170;
554 380 return 0;
555 }
556
557 26918560 static av_always_inline void dnxhd_encode_dc(PutBitContext *pb, DNXHDEncContext *ctx, int diff)
558 {
559 int nbits;
560
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 26918560 if (diff < 0) {
561 12317800 nbits = av_log2_16bit(-2 * diff);
562 12317800 diff--;
563 } else {
564 14600760 nbits = av_log2_16bit(2 * diff);
565 }
566 26918560 put_bits(pb, ctx->cid_table->dc_bits[nbits] + nbits,
567 26918560 (ctx->cid_table->dc_codes[nbits] << nbits) +
568 26918560 av_zero_extend(diff, nbits));
569 26918560 }
570
571 static av_always_inline
572 26918560 void dnxhd_encode_block(PutBitContext *pb, DNXHDEncContext *ctx,
573 int16_t *block, int last_index, int n)
574 {
575 26918560 int last_non_zero = 0;
576 int slevel, i, j;
577
578 26918560 dnxhd_encode_dc(pb, ctx, block[0] - ctx->m.last_dc[n]);
579 26918560 ctx->m.last_dc[n] = block[0];
580
581
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 323734095 for (i = 1; i <= last_index; i++) {
582 296815535 j = ctx->m.c.intra_scantable.permutated[i];
583 296815535 slevel = block[j];
584
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 296815535 if (slevel) {
585 111020901 int run_level = i - last_non_zero - 1;
586 111020901 int rlevel = slevel * (1 << 1) | !!run_level;
587 111020901 put_bits(pb, ctx->vlc_bits[rlevel], ctx->vlc_codes[rlevel]);
588
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 111020901 if (run_level)
589 36001883 put_bits(pb, ctx->run_bits[run_level],
590 36001883 ctx->run_codes[run_level]);
591 111020901 last_non_zero = i;
592 }
593 }
594 26918560 put_bits(pb, ctx->vlc_bits[0], ctx->vlc_codes[0]); // EOB
595 26918560 }
596
597 static av_always_inline
598 3024000 void dnxhd_unquantize_c(DNXHDEncContext *ctx, int16_t *block, int n,
599 int qscale, int last_index)
600 {
601 const uint8_t *weight_matrix;
602 int level;
603 int i;
604
605
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 3024000 if (ctx->is_444) {
606 ✗ weight_matrix = ((n % 6) < 2) ? ctx->cid_table->luma_weight
607 ✗ : ctx->cid_table->chroma_weight;
608 } else {
609 3024000 weight_matrix = (n & 2) ? ctx->cid_table->chroma_weight
610
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 3024000 : ctx->cid_table->luma_weight;
611 }
612
613
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 35797315 for (i = 1; i <= last_index; i++) {
614 32773315 int j = ctx->m.c.intra_scantable.permutated[i];
615 32773315 level = block[j];
616
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 32773315 if (level) {
617
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 16774641 if (level < 0) {
618 8458215 level = (1 - 2 * level) * qscale * weight_matrix[i];
619
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 8458215 if (ctx->bit_depth == 10) {
620 ✗ if (weight_matrix[i] != 8)
621 ✗ level += 8;
622 ✗ level >>= 4;
623 } else {
624
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 8458215 if (weight_matrix[i] != 32)
625 6479585 level += 32;
626 8458215 level >>= 6;
627 }
628 8458215 level = -level;
629 } else {
630 8316426 level = (2 * level + 1) * qscale * weight_matrix[i];
631
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 8316426 if (ctx->bit_depth == 10) {
632 ✗ if (weight_matrix[i] != 8)
633 ✗ level += 8;
634 ✗ level >>= 4;
635 } else {
636
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 8316426 if (weight_matrix[i] != 32)
637 6813970 level += 32;
638 8316426 level >>= 6;
639 }
640 }
641 16774641 block[j] = level;
642 }
643 }
644 3024000 }
645
646 3024000 static av_always_inline int dnxhd_ssd_block(int16_t *qblock, int16_t *block)
647 {
648 3024000 int score = 0;
649 int i;
650
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 196560000 for (i = 0; i < 64; i++)
651 193536000 score += (block[i] - qblock[i]) * (block[i] - qblock[i]);
652 3024000 return score;
653 }
654
655 static av_always_inline
656 51881432 int dnxhd_calc_ac_bits(DNXHDEncContext *ctx, int16_t *block, int last_index)
657 {
658 51881432 int last_non_zero = 0;
659 51881432 int bits = 0;
660 int i, j, level;
661
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 515019637 for (i = 1; i <= last_index; i++) {
662 463138205 j = ctx->m.c.intra_scantable.permutated[i];
663 463138205 level = block[j];
664
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 463138205 if (level) {
665 191817206 int run_level = i - last_non_zero - 1;
666 191817206 bits += ctx->vlc_bits[level * (1 << 1) |
667 191817206 !!run_level] + ctx->run_bits[run_level];
668 191817206 last_non_zero = i;
669 }
670 }
671 51881432 return bits;
672 }
673
674 static av_always_inline
675 9849999 void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, int mb_y)
676 {
677 9849999 const int bs = ctx->block_width_l2;
678 9849999 const int bw = 1 << bs;
679 9849999 int dct_y_offset = ctx->dct_y_offset;
680 9849999 int dct_uv_offset = ctx->dct_uv_offset;
681 9849999 int linesize = ctx->m.c.linesize;
682 9849999 int uvlinesize = ctx->m.c.uvlinesize;
683 9849999 const uint8_t *ptr_y = ctx->thread[0]->src[0] +
684 9849999 ((mb_y << 4) * ctx->m.c.linesize) + (mb_x << bs + 1);
685 9849999 const uint8_t *ptr_u = ctx->thread[0]->src[1] +
686 9849999 ((mb_y << 4) * ctx->m.c.uvlinesize) + (mb_x << bs + ctx->is_444);
687 9849999 const uint8_t *ptr_v = ctx->thread[0]->src[2] +
688 9849999 ((mb_y << 4) * ctx->m.c.uvlinesize) + (mb_x << bs + ctx->is_444);
689 9849999 PixblockDSPContext *pdsp = &ctx->m.pdsp;
690 9849999 VideoDSPContext *vdsp = &ctx->m.c.vdsp;
691
692
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 9849999 if (ctx->bit_depth != 10 && vdsp->emulated_edge_mc && ((mb_x << 4) + 16 > ctx->m.c.avctx->width ||
693
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 7203152 (mb_y << 4) + 16 > ctx->m.c.avctx->height)) {
694 22511 int y_w = ctx->m.c.avctx->width - (mb_x << 4);
695 22511 int y_h = ctx->m.c.avctx->height - (mb_y << 4);
696 22511 int uv_w = (y_w + 1) / 2;
697 22511 int uv_h = y_h;
698 22511 linesize = 16;
699 22511 uvlinesize = 8;
700
701 22511 vdsp->emulated_edge_mc(&ctx->edge_buf_y[0], ptr_y,
702 linesize, ctx->m.c.linesize,
703 linesize, 16,
704 0, 0, y_w, y_h);
705 22511 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[0][0], ptr_u,
706 uvlinesize, ctx->m.c.uvlinesize,
707 uvlinesize, 16,
708 0, 0, uv_w, uv_h);
709 22511 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[1][0], ptr_v,
710 uvlinesize, ctx->m.c.uvlinesize,
711 uvlinesize, 16,
712 0, 0, uv_w, uv_h);
713
714 22511 dct_y_offset = bw * linesize;
715 22511 dct_uv_offset = bw * uvlinesize;
716 22511 ptr_y = &ctx->edge_buf_y[0];
717 22511 ptr_u = &ctx->edge_buf_uv[0][0];
718 22511 ptr_v = &ctx->edge_buf_uv[1][0];
719
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 9827488 } else if (ctx->bit_depth == 10 && vdsp->emulated_edge_mc && ((mb_x << 4) + 16 > ctx->m.c.avctx->width ||
720 ✗ (mb_y << 4) + 16 > ctx->m.c.avctx->height)) {
721 ✗ int y_w = ctx->m.c.avctx->width - (mb_x << 4);
722 ✗ int y_h = ctx->m.c.avctx->height - (mb_y << 4);
723 ✗ int uv_w = ctx->is_444 ? y_w : (y_w + 1) / 2;
724 ✗ int uv_h = y_h;
725 ✗ linesize = 32;
726 ✗ uvlinesize = 16 + 16 * ctx->is_444;
727
728 ✗ vdsp->emulated_edge_mc(&ctx->edge_buf_y[0], ptr_y,
729 linesize, ctx->m.c.linesize,
730 linesize / 2, 16,
731 0, 0, y_w, y_h);
732 ✗ vdsp->emulated_edge_mc(&ctx->edge_buf_uv[0][0], ptr_u,
733 uvlinesize, ctx->m.c.uvlinesize,
734 uvlinesize / 2, 16,
735 0, 0, uv_w, uv_h);
736 ✗ vdsp->emulated_edge_mc(&ctx->edge_buf_uv[1][0], ptr_v,
737 uvlinesize, ctx->m.c.uvlinesize,
738 uvlinesize / 2, 16,
739 0, 0, uv_w, uv_h);
740
741 ✗ dct_y_offset = bw * linesize / 2;
742 ✗ dct_uv_offset = bw * uvlinesize / 2;
743 ✗ ptr_y = &ctx->edge_buf_y[0];
744 ✗ ptr_u = &ctx->edge_buf_uv[0][0];
745 ✗ ptr_v = &ctx->edge_buf_uv[1][0];
746 }
747
748
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 9849999 if (!ctx->is_444) {
749 9849999 pdsp->get_pixels(ctx->blocks[0], ptr_y, linesize);
750 9849999 pdsp->get_pixels(ctx->blocks[1], ptr_y + bw, linesize);
751 9849999 pdsp->get_pixels(ctx->blocks[2], ptr_u, uvlinesize);
752 9849999 pdsp->get_pixels(ctx->blocks[3], ptr_v, uvlinesize);
753
754
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 9849999 if (mb_y + 1 == ctx->m.c.mb_height && ctx->m.c.avctx->height == 1080) {
755
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 56560 if (ctx->interlaced) {
756 35280 ctx->get_pixels_8x4_sym(ctx->blocks[4],
757 ptr_y + dct_y_offset,
758 linesize);
759 35280 ctx->get_pixels_8x4_sym(ctx->blocks[5],
760 35280 ptr_y + dct_y_offset + bw,
761 linesize);
762 35280 ctx->get_pixels_8x4_sym(ctx->blocks[6],
763 ptr_u + dct_uv_offset,
764 uvlinesize);
765 35280 ctx->get_pixels_8x4_sym(ctx->blocks[7],
766 ptr_v + dct_uv_offset,
767 uvlinesize);
768 } else {
769 21280 ctx->m.c.bdsp.clear_block(ctx->blocks[4]);
770 21280 ctx->m.c.bdsp.clear_block(ctx->blocks[5]);
771 21280 ctx->m.c.bdsp.clear_block(ctx->blocks[6]);
772 21280 ctx->m.c.bdsp.clear_block(ctx->blocks[7]);
773 }
774 } else {
775 9793439 pdsp->get_pixels(ctx->blocks[4],
776 ptr_y + dct_y_offset, linesize);
777 9793439 pdsp->get_pixels(ctx->blocks[5],
778 9793439 ptr_y + dct_y_offset + bw, linesize);
779 9793439 pdsp->get_pixels(ctx->blocks[6],
780 ptr_u + dct_uv_offset, uvlinesize);
781 9793439 pdsp->get_pixels(ctx->blocks[7],
782 ptr_v + dct_uv_offset, uvlinesize);
783 }
784 } else {
785 ✗ pdsp->get_pixels(ctx->blocks[0], ptr_y, linesize);
786 ✗ pdsp->get_pixels(ctx->blocks[1], ptr_y + bw, linesize);
787 ✗ pdsp->get_pixels(ctx->blocks[6], ptr_y + dct_y_offset, linesize);
788 ✗ pdsp->get_pixels(ctx->blocks[7], ptr_y + dct_y_offset + bw, linesize);
789
790 ✗ pdsp->get_pixels(ctx->blocks[2], ptr_u, uvlinesize);
791 ✗ pdsp->get_pixels(ctx->blocks[3], ptr_u + bw, uvlinesize);
792 ✗ pdsp->get_pixels(ctx->blocks[8], ptr_u + dct_uv_offset, uvlinesize);
793 ✗ pdsp->get_pixels(ctx->blocks[9], ptr_u + dct_uv_offset + bw, uvlinesize);
794
795 ✗ pdsp->get_pixels(ctx->blocks[4], ptr_v, uvlinesize);
796 ✗ pdsp->get_pixels(ctx->blocks[5], ptr_v + bw, uvlinesize);
797 ✗ pdsp->get_pixels(ctx->blocks[10], ptr_v + dct_uv_offset, uvlinesize);
798 ✗ pdsp->get_pixels(ctx->blocks[11], ptr_v + dct_uv_offset + bw, uvlinesize);
799 }
800 9849999 }
801
802 static av_always_inline
803 78799992 int dnxhd_switch_matrix(DNXHDEncContext *ctx, int i)
804 {
805 int x;
806
807
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 78799992 if (ctx->is_444) {
808 ✗ x = (i >> 1) % 3;
809 } else {
810 const static uint8_t component[8]={0,0,1,2,0,0,1,2};
811 78799992 x = component[i];
812 }
813 78799992 return x;
814 }
815
816 41557 static int dnxhd_calc_bits_thread(AVCodecContext *avctx, void *arg,
817 int jobnr, int threadnr)
818 {
819 41557 DNXHDEncContext *ctx = avctx->priv_data;
820 41557 int mb_y = jobnr;
821 41557 int qscale = ctx->qscale;
822 41557 LOCAL_ALIGNED_16(int16_t, block, [64]);
823 41557 ctx = ctx->thread[threadnr];
824
825 41557 ctx->m.last_dc[0] =
826 41557 ctx->m.last_dc[1] =
827 41557 ctx->m.last_dc[2] = 1 << (ctx->bit_depth + 2);
828
829
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 6526736 for (int mb_x = 0; mb_x < ctx->m.c.mb_width; mb_x++) {
830 6485179 unsigned mb = mb_y * ctx->m.c.mb_width + mb_x;
831 6485179 int ssd = 0;
832 6485179 int ac_bits = 0;
833 6485179 int dc_bits = 0;
834 int i;
835
836 6485179 dnxhd_get_blocks(ctx, mb_x, mb_y);
837
838
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 58366611 for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
839 51881432 int16_t *src_block = ctx->blocks[i];
840 int overflow, nbits, diff, last_index;
841 51881432 int n = dnxhd_switch_matrix(ctx, i);
842
843 51881432 memcpy(block, src_block, 64 * sizeof(*block));
844 51881432 last_index = ctx->m.dct_quantize(&ctx->m, block,
845
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 51881432 ctx->is_444 ? 4 * (n > 0): 4 & (2*i),
846 qscale, &overflow);
847 51881432 ac_bits += dnxhd_calc_ac_bits(ctx, block, last_index);
848
849 51881432 diff = block[0] - ctx->m.last_dc[n];
850
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 51881432 if (diff < 0)
851 23766663 nbits = av_log2_16bit(-2 * diff);
852 else
853 28114769 nbits = av_log2_16bit(2 * diff);
854
855 av_assert1(nbits < ctx->bit_depth + 4);
856 51881432 dc_bits += ctx->cid_table->dc_bits[nbits] + nbits;
857
858 51881432 ctx->m.last_dc[n] = block[0];
859
860
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 51881432 if (avctx->mb_decision == FF_MB_DECISION_RD || !RC_VARIANCE) {
861 3024000 dnxhd_unquantize_c(ctx, block, i, qscale, last_index);
862 3024000 ctx->m.c.idsp.idct(block);
863 3024000 ssd += dnxhd_ssd_block(block, src_block);
864 }
865 }
866 6485179 ctx->mb_rc[(qscale * ctx->m.c.mb_num) + mb].ssd = ssd;
867 6485179 ctx->mb_rc[(qscale * ctx->m.c.mb_num) + mb].bits = ac_bits + dc_bits + 12 +
868 6485179 (1 + ctx->is_444) * 8 * ctx->vlc_bits[0];
869 }
870 41557 return 0;
871 }
872
873 20765 static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg,
874 int jobnr, int threadnr)
875 {
876 20765 DNXHDEncContext *ctx = avctx->priv_data;
877 20765 PutBitContext pb0, *const pb = &pb0;
878 20765 int mb_y = jobnr;
879 20765 ctx = ctx->thread[threadnr];
880 20765 init_put_bits(pb, (uint8_t *)arg + ctx->data_offset + ctx->slice_offs[jobnr],
881 20765 ctx->slice_size[jobnr]);
882
883 20765 ctx->m.last_dc[0] =
884 20765 ctx->m.last_dc[1] =
885 20765 ctx->m.last_dc[2] = 1 << (ctx->bit_depth + 2);
886
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 3385585 for (int mb_x = 0; mb_x < ctx->m.c.mb_width; mb_x++) {
887 3364820 unsigned mb = mb_y * ctx->m.c.mb_width + mb_x;
888 3364820 int qscale = ctx->mb_qscale[mb];
889 int i;
890
891 3364820 put_bits(pb, 11, qscale);
892 3364820 put_bits(pb, 1, avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
893
894 3364820 dnxhd_get_blocks(ctx, mb_x, mb_y);
895
896
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 30283380 for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
897 26918560 int16_t *block = ctx->blocks[i];
898 26918560 int overflow, n = dnxhd_switch_matrix(ctx, i);
899 26918560 int last_index = ctx->m.dct_quantize(&ctx->m, block,
900
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 26918560 ctx->is_444 ? (((i >> 1) % 3) < 1 ? 0 : 4): 4 & (2*i),
901 qscale, &overflow);
902
903 26918560 dnxhd_encode_block(pb, ctx, block, last_index, n);
904 }
905 }
906 20765 flush_put_bits(pb);
907 20765 memset(put_bits_ptr(pb), 0, put_bytes_left(pb, 0));
908 20765 return 0;
909 }
910
911 380 static void dnxhd_setup_threads_slices(DNXHDEncContext *ctx)
912 {
913
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 21145 for (int mb_y = 0, offset = 0; mb_y < ctx->m.c.mb_height; mb_y++) {
914 int thread_size;
915 20765 ctx->slice_offs[mb_y] = offset;
916 20765 ctx->slice_size[mb_y] = 0;
917
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 3385585 for (int mb_x = 0; mb_x < ctx->m.c.mb_width; mb_x++) {
918 3364820 unsigned mb = mb_y * ctx->m.c.mb_width + mb_x;
919 3364820 ctx->slice_size[mb_y] += ctx->mb_bits[mb];
920 }
921 20765 ctx->slice_size[mb_y] = (ctx->slice_size[mb_y] + 31U) & ~31U;
922 20765 ctx->slice_size[mb_y] >>= 3;
923 20765 thread_size = ctx->slice_size[mb_y];
924 20765 offset += thread_size;
925 }
926 380 }
927
928 11520 static int dnxhd_mb_var_thread(AVCodecContext *avctx, void *arg,
929 int jobnr, int threadnr)
930 {
931 11520 DNXHDEncContext *ctx = avctx->priv_data;
932 11520 int mb_y = jobnr, x, y;
933
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 11740 int partial_last_row = (mb_y == ctx->m.c.mb_height - 1) &&
934
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 220 ((avctx->height >> ctx->interlaced) & 0xF);
935
936 11520 ctx = ctx->thread[threadnr];
937
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 11520 if (ctx->bit_depth == 8) {
938 10955 const uint8_t *pix = ctx->thread[0]->src[0] + ((mb_y << 4) * ctx->m.c.linesize);
939
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 1930655 for (int mb_x = 0; mb_x < ctx->m.c.mb_width; ++mb_x, pix += 16) {
940 1919700 unsigned mb = mb_y * ctx->m.c.mb_width + mb_x;
941 int sum;
942 int varc;
943
944
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 1919700 if (!partial_last_row && mb_x * 16 <= avctx->width - 16 && (avctx->width % 16) == 0) {
945 1901720 sum = ctx->m.mpvencdsp.pix_sum(pix, ctx->m.c.linesize);
946 1901720 varc = ctx->m.mpvencdsp.pix_norm1(pix, ctx->m.c.linesize);
947 } else {
948 17980 int bw = FFMIN(avctx->width - 16 * mb_x, 16);
949 17980 int bh = FFMIN((avctx->height >> ctx->interlaced) - 16 * mb_y, 16);
950 17980 sum = varc = 0;
951
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 244175 for (y = 0; y < bh; y++) {
952
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 3800030 for (x = 0; x < bw; x++) {
953 3573835 uint8_t val = pix[x + y * ctx->m.c.linesize];
954 3573835 sum += val;
955 3573835 varc += val * val;
956 }
957 }
958 }
959 1919700 varc = (varc - (((unsigned) sum * sum) >> 8) + 128) >> 8;
960
961 1919700 ctx->mb_cmp[mb].value = varc;
962 1919700 ctx->mb_cmp[mb].mb = mb;
963 }
964 } else { // 10-bit
965 565 const int linesize = ctx->m.c.linesize >> 1;
966
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 59365 for (int mb_x = 0; mb_x < ctx->m.c.mb_width; ++mb_x) {
967 58800 const uint16_t *pix = (const uint16_t *)ctx->thread[0]->src[0] +
968 58800 ((mb_y << 4) * linesize) + (mb_x << 4);
969 58800 unsigned mb = mb_y * ctx->m.c.mb_width + mb_x;
970 58800 int sum = 0;
971 58800 int sqsum = 0;
972 58800 int bw = FFMIN(avctx->width - 16 * mb_x, 16);
973 58800 int bh = FFMIN((avctx->height >> ctx->interlaced) - 16 * mb_y, 16);
974 int mean, sqmean;
975 int i, j;
976 // Macroblocks are 16x16 pixels, unlike DCT blocks which are 8x8.
977
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 994800 for (i = 0; i < bh; ++i) {
978
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 15912000 for (j = 0; j < bw; ++j) {
979 // Turn 16-bit pixels into 10-bit ones.
980 14976000 const int sample = (unsigned) pix[j] >> 6;
981 14976000 sum += sample;
982 14976000 sqsum += sample * sample;
983 // 2^10 * 2^10 * 16 * 16 = 2^28, which is less than INT_MAX
984 }
985 936000 pix += linesize;
986 }
987 58800 mean = sum >> 8; // 16*16 == 2^8
988 58800 sqmean = sqsum >> 8;
989 58800 ctx->mb_cmp[mb].value = sqmean - mean * mean;
990 58800 ctx->mb_cmp[mb].mb = mb;
991 }
992 }
993 11520 return 0;
994 }
995
996 15 static int dnxhd_encode_rdo(AVCodecContext *avctx, DNXHDEncContext *ctx)
997 {
998 int lambda, up_step, down_step;
999 15 int last_lower = INT_MAX, last_higher = 0;
1000
1001
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 120 for (int q = 1; q < avctx->qmax; q++) {
1002 105 ctx->qscale = q;
1003 105 avctx->execute2(avctx, dnxhd_calc_bits_thread,
1004 NULL, NULL, ctx->m.c.mb_height);
1005 }
1006 15 up_step = down_step = 2 << LAMBDA_FRAC_BITS;
1007 15 lambda = ctx->lambda;
1008
1009 73 for (;;) {
1010 88 int bits = 0;
1011 88 int end = 0;
1012
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 88 if (lambda == last_higher) {
1013 5 lambda++;
1014 5 end = 1; // need to set final qscales/bits
1015 }
1016
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 4009 for (int y = 0; y < ctx->m.c.mb_height; y++) {
1017
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 319788 for (int x = 0; x < ctx->m.c.mb_width; x++) {
1018 315840 unsigned min = UINT_MAX;
1019 315840 int qscale = 1;
1020 315840 int mb = y * ctx->m.c.mb_width + x;
1021 315840 int rc = 0;
1022
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 2526720 for (int q = 1; q < avctx->qmax; q++) {
1023 2210880 int i = (q*ctx->m.c.mb_num) + mb;
1024 2210880 unsigned score = ctx->mb_rc[i].bits * lambda +
1025 2210880 ((unsigned) ctx->mb_rc[i].ssd << LAMBDA_FRAC_BITS);
1026
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 2210880 if (score < min) {
1027 532068 min = score;
1028 532068 qscale = q;
1029 532068 rc = i;
1030 }
1031 }
1032 315840 bits += ctx->mb_rc[rc].bits;
1033 315840 ctx->mb_qscale[mb] = qscale;
1034 315840 ctx->mb_bits[mb] = ctx->mb_rc[rc].bits;
1035 }
1036 3948 bits = (bits + 31) & ~31; // padding
1037
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 3948 if (bits > ctx->frame_bits)
1038 27 break;
1039 }
1040
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 88 if (end) {
1041
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 5 if (bits > ctx->frame_bits)
1042 ✗ return AVERROR(EINVAL);
1043 5 break;
1044 }
1045
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 83 if (bits < ctx->frame_bits) {
1046 56 last_lower = FFMIN(lambda, last_lower);
1047
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 56 if (last_higher != 0)
1048 34 lambda = (lambda+last_higher)>>1;
1049 else
1050 22 lambda -= down_step;
1051 56 down_step = FFMIN((int64_t)down_step*5, INT_MAX);
1052 56 up_step = 1<<LAMBDA_FRAC_BITS;
1053 56 lambda = FFMAX(1, lambda);
1054
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 56 if (lambda == last_lower)
1055 10 break;
1056 } else {
1057 27 last_higher = FFMAX(lambda, last_higher);
1058
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 27 if (last_lower != INT_MAX)
1059 26 lambda = (lambda+last_lower)>>1;
1060
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 1 else if ((int64_t)lambda + up_step > INT_MAX)
1061 ✗ return AVERROR(EINVAL);
1062 else
1063 1 lambda += up_step;
1064 27 up_step = FFMIN((int64_t)up_step*5, INT_MAX);
1065 27 down_step = 1<<LAMBDA_FRAC_BITS;
1066 }
1067 }
1068 15 ctx->lambda = lambda;
1069 15 return 0;
1070 }
1071
1072 365 static int dnxhd_find_qscale(DNXHDEncContext *ctx)
1073 {
1074 365 int bits = 0;
1075 365 int up_step = 1;
1076 365 int down_step = 1;
1077 365 int last_higher = 0;
1078 365 int last_lower = INT_MAX;
1079 int qscale;
1080
1081 365 qscale = ctx->qscale;
1082 for (;;) {
1083 691 bits = 0;
1084 691 ctx->qscale = qscale;
1085 // XXX avoid recalculating bits
1086 691 ctx->m.c.avctx->execute2(ctx->m.c.avctx, dnxhd_calc_bits_thread,
1087 NULL, NULL, ctx->m.c.mb_height);
1088
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 35231 for (int y = 0; y < ctx->m.c.mb_height; y++) {
1089
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 5794959 for (int x = 0; x < ctx->m.c.mb_width; x++)
1090 5760121 bits += ctx->mb_rc[(qscale*ctx->m.c.mb_num) + (y*ctx->m.c.mb_width+x)].bits;
1091 34838 bits = (bits+31)&~31; // padding
1092
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 34838 if (bits > ctx->frame_bits)
1093 298 break;
1094 }
1095
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 691 if (bits < ctx->frame_bits) {
1096
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 393 if (qscale == 1)
1097 145 return 1;
1098
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 248 if (last_higher == qscale - 1) {
1099 195 qscale = last_higher;
1100 195 break;
1101 }
1102 53 last_lower = FFMIN(qscale, last_lower);
1103
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 53 if (last_higher != 0)
1104 38 qscale = (qscale + last_higher) >> 1;
1105 else
1106 15 qscale -= down_step++;
1107
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 53 if (qscale < 1)
1108 ✗ qscale = 1;
1109 53 up_step = 1;
1110 } else {
1111
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 298 if (last_lower == qscale + 1)
1112 25 break;
1113 273 last_higher = FFMAX(qscale, last_higher);
1114
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 273 if (last_lower != INT_MAX)
1115 5 qscale = (qscale + last_lower) >> 1;
1116 else
1117 268 qscale += up_step++;
1118 273 down_step = 1;
1119
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 273 if (qscale >= ctx->m.c.avctx->qmax)
1120 ✗ return AVERROR(EINVAL);
1121 }
1122 }
1123 220 ctx->qscale = qscale;
1124 220 return 0;
1125 }
1126
1127 #define BUCKET_BITS 8
1128 #define RADIX_PASSES 4
1129 #define NBUCKETS (1 << BUCKET_BITS)
1130
1131 11871000 static inline int get_bucket(int value, int shift)
1132 {
1133 11871000 value >>= shift;
1134 11871000 value &= NBUCKETS - 1;
1135 11871000 return NBUCKETS - 1 - value;
1136 }
1137
1138 220 static void radix_count(const RCCMPEntry *data, int size,
1139 int buckets[RADIX_PASSES][NBUCKETS])
1140 {
1141 int i, j;
1142 220 memset(buckets, 0, sizeof(buckets[0][0]) * RADIX_PASSES * NBUCKETS);
1143
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 1978720 for (i = 0; i < size; i++) {
1144 1978500 int v = data[i].value;
1145
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 9892500 for (j = 0; j < RADIX_PASSES; j++) {
1146 7914000 buckets[j][get_bucket(v, 0)]++;
1147 7914000 v >>= BUCKET_BITS;
1148 }
1149 av_assert1(!v);
1150 }
1151
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 1100 for (j = 0; j < RADIX_PASSES; j++) {
1152 880 int offset = size;
1153
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 226160 for (i = NBUCKETS - 1; i >= 0; i--)
1154 225280 buckets[j][i] = offset -= buckets[j][i];
1155 av_assert1(!buckets[j][0]);
1156 }
1157 220 }
1158
1159 440 static void radix_sort_pass(RCCMPEntry *dst, const RCCMPEntry *data,
1160 int size, int buckets[NBUCKETS], int pass)
1161 {
1162 440 int shift = pass * BUCKET_BITS;
1163 int i;
1164
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 3957440 for (i = 0; i < size; i++) {
1165 3957000 int v = get_bucket(data[i].value, shift);
1166 3957000 int pos = buckets[v]++;
1167 3957000 dst[pos] = data[i];
1168 }
1169 440 }
1170
1171 220 static void radix_sort(RCCMPEntry *data, RCCMPEntry *tmp, int size)
1172 {
1173 int buckets[RADIX_PASSES][NBUCKETS];
1174 220 radix_count(data, size, buckets);
1175 220 radix_sort_pass(tmp, data, size, buckets[0], 0);
1176 220 radix_sort_pass(data, tmp, size, buckets[1], 1);
1177
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 220 if (buckets[2][NBUCKETS - 1] || buckets[3][NBUCKETS - 1]) {
1178 ✗ radix_sort_pass(tmp, data, size, buckets[2], 2);
1179 ✗ radix_sort_pass(data, tmp, size, buckets[3], 3);
1180 }
1181 220 }
1182
1183 365 static int dnxhd_encode_fast(AVCodecContext *avctx, DNXHDEncContext *ctx)
1184 {
1185 365 int max_bits = 0;
1186 int ret;
1187
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 365 if ((ret = dnxhd_find_qscale(ctx)) < 0)
1188 ✗ return ret;
1189
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 20455 for (int y = 0; y < ctx->m.c.mb_height; y++) {
1190
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 3330910 for (int x = 0; x < ctx->m.c.mb_width; x++) {
1191 3310820 int mb = y * ctx->m.c.mb_width + x;
1192 3310820 int rc = (ctx->qscale * ctx->m.c.mb_num ) + mb;
1193 int delta_bits;
1194 3310820 ctx->mb_qscale[mb] = ctx->qscale;
1195 3310820 ctx->mb_bits[mb] = ctx->mb_rc[rc].bits;
1196 3310820 max_bits += ctx->mb_rc[rc].bits;
1197 if (!RC_VARIANCE) {
1198 delta_bits = ctx->mb_rc[rc].bits -
1199 ctx->mb_rc[rc + ctx->m.c.mb_num].bits;
1200 ctx->mb_cmp[mb].mb = mb;
1201 ctx->mb_cmp[mb].value =
1202 delta_bits ? ((ctx->mb_rc[rc].ssd -
1203 ctx->mb_rc[rc + ctx->m.c.mb_num].ssd) * 100) /
1204 delta_bits
1205 : INT_MIN; // avoid increasing qscale
1206 }
1207 }
1208 20090 max_bits += 31; // worst padding
1209 }
1210
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 365 if (!ret) {
1211 if (RC_VARIANCE)
1212 220 avctx->execute2(avctx, dnxhd_mb_var_thread,
1213 NULL, NULL, ctx->m.c.mb_height);
1214 220 radix_sort(ctx->mb_cmp, ctx->mb_cmp_tmp, ctx->m.c.mb_num);
1215 222 retry:
1216
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 647233 for (int x = 0; x < ctx->m.c.mb_num && max_bits > ctx->frame_bits; x++) {
1217 647011 int mb = ctx->mb_cmp[x].mb;
1218 647011 int rc = (ctx->qscale * ctx->m.c.mb_num ) + mb;
1219 647011 max_bits -= ctx->mb_rc[rc].bits -
1220 647011 ctx->mb_rc[rc + ctx->m.c.mb_num].bits;
1221
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 647011 if (ctx->mb_qscale[mb] < 255)
1222 647011 ctx->mb_qscale[mb]++;
1223 647011 ctx->mb_bits[mb] = ctx->mb_rc[rc + ctx->m.c.mb_num].bits;
1224 }
1225
1226
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 222 if (max_bits > ctx->frame_bits)
1227 2 goto retry;
1228 }
1229 365 return 0;
1230 }
1231
1232 325 static void dnxhd_load_picture(DNXHDEncContext *ctx, const AVFrame *frame)
1233 {
1234
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 650 for (int i = 0; i < ctx->m.c.avctx->thread_count; i++) {
1235 325 ctx->thread[i]->m.c.linesize = frame->linesize[0] << ctx->interlaced;
1236 325 ctx->thread[i]->m.c.uvlinesize = frame->linesize[1] << ctx->interlaced;
1237 325 ctx->thread[i]->dct_y_offset = ctx->m.c.linesize *8;
1238 325 ctx->thread[i]->dct_uv_offset = ctx->m.c.uvlinesize*8;
1239 }
1240
1241
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 325 ctx->cur_field = (frame->flags & AV_FRAME_FLAG_INTERLACED) &&
1242 ✗ !(frame->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST);
1243 325 }
1244
1245 325 static int dnxhd_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
1246 const AVFrame *frame, int *got_packet)
1247 {
1248 325 DNXHDEncContext *ctx = avctx->priv_data;
1249 325 int first_field = 1;
1250 int offset, i, ret;
1251 uint8_t *buf;
1252
1253
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 325 if ((ret = ff_get_encode_buffer(avctx, pkt, ctx->frame_size, 0)) < 0)
1254 ✗ return ret;
1255 325 buf = pkt->data;
1256
1257 325 dnxhd_load_picture(ctx, frame);
1258
1259 380 encode_coding_unit:
1260
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 1520 for (i = 0; i < 3; i++) {
1261 1140 ctx->src[i] = frame->data[i];
1262
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 1140 if (ctx->interlaced && ctx->cur_field)
1263 165 ctx->src[i] += frame->linesize[i];
1264 }
1265
1266 380 dnxhd_write_header(avctx, buf);
1267
1268
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 380 if (avctx->mb_decision == FF_MB_DECISION_RD)
1269 15 ret = dnxhd_encode_rdo(avctx, ctx);
1270 else
1271 365 ret = dnxhd_encode_fast(avctx, ctx);
1272
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 380 if (ret < 0) {
1273 ✗ av_log(avctx, AV_LOG_ERROR,
1274 "picture could not fit ratecontrol constraints, increase qmax\n");
1275 ✗ return ret;
1276 }
1277
1278 380 dnxhd_setup_threads_slices(ctx);
1279
1280 380 offset = 0;
1281
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 21145 for (i = 0; i < ctx->m.c.mb_height; i++) {
1282 20765 AV_WB32(ctx->msip + i * 4, offset);
1283 20765 offset += ctx->slice_size[i];
1284 av_assert1(!(ctx->slice_size[i] & 3));
1285 }
1286
1287 380 avctx->execute2(avctx, dnxhd_encode_thread, buf, NULL, ctx->m.c.mb_height);
1288
1289 av_assert1(ctx->data_offset + offset + 4 <= ctx->coding_unit_size);
1290 380 memset(buf + ctx->data_offset + offset, 0,
1291 380 ctx->coding_unit_size - 4 - offset - ctx->data_offset);
1292
1293 380 AV_WB32(buf + ctx->coding_unit_size - 4, 0x600DC0DE); // EOF
1294
1295
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 380 if (ctx->interlaced && first_field) {
1296 55 first_field = 0;
1297 55 ctx->cur_field ^= 1;
1298 55 buf += ctx->coding_unit_size;
1299 55 goto encode_coding_unit;
1300 }
1301
1302 325 ff_encode_add_stats_side_data(pkt, ctx->qscale * FF_QP2LAMBDA, NULL, 0, AV_PICTURE_TYPE_I);
1303
1304 325 *got_packet = 1;
1305 325 return 0;
1306 }
1307
1308 73 static av_cold int dnxhd_encode_end(AVCodecContext *avctx)
1309 {
1310 73 DNXHDEncContext *ctx = avctx->priv_data;
1311 int i;
1312
1313 73 av_freep(&ctx->orig_vlc_codes);
1314 73 av_freep(&ctx->orig_vlc_bits);
1315 73 av_freep(&ctx->run_codes);
1316 73 av_freep(&ctx->run_bits);
1317
1318 73 av_freep(&ctx->mb_bits);
1319 73 av_freep(&ctx->mb_qscale);
1320 73 av_freep(&ctx->mb_rc);
1321 73 av_freep(&ctx->mb_cmp);
1322 73 av_freep(&ctx->mb_cmp_tmp);
1323 73 av_freep(&ctx->slice_size);
1324 73 av_freep(&ctx->slice_offs);
1325
1326 73 av_freep(&ctx->qmatrix_c);
1327 73 av_freep(&ctx->qmatrix_l);
1328 73 av_freep(&ctx->qmatrix_c16);
1329 73 av_freep(&ctx->qmatrix_l16);
1330
1331
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 73 if (ctx->thread[1]) {
1332 ✗ for (i = 1; i < avctx->thread_count; i++)
1333 ✗ av_freep(&ctx->thread[i]);
1334 }
1335
1336 73 return 0;
1337 }
1338
1339 static const FFCodecDefault dnxhd_defaults[] = {
1340 { "qmax", "1024" }, /* Maximum quantization scale factor allowed for VC-3 */
1341 { NULL },
1342 };
1343
1344 const FFCodec ff_dnxhd_encoder = {
1345 .p.name = "dnxhd",
1346 CODEC_LONG_NAME("VC3/DNxHD"),
1347 .p.type = AVMEDIA_TYPE_VIDEO,
1348 .p.id = AV_CODEC_ID_DNXHD,
1349 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
1350 AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
1351 .priv_data_size = sizeof(DNXHDEncContext),
1352 .init = dnxhd_encode_init,
1353 FF_CODEC_ENCODE_CB(dnxhd_encode_picture),
1354 .close = dnxhd_encode_end,
1355 CODEC_PIXFMTS(AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10,
1356 AV_PIX_FMT_YUV444P10, AV_PIX_FMT_GBRP10),
1357 .color_ranges = AVCOL_RANGE_MPEG,
1358 .p.priv_class = &dnxhd_class,
1359 .defaults = dnxhd_defaults,
1360 .p.profiles = NULL_IF_CONFIG_SMALL(ff_dnxhd_profiles),
1361 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1362 };
1363
1364 73 void ff_dnxhdenc_init(DNXHDEncContext *ctx)
1365 {
1366 #if ARCH_X86 && HAVE_X86ASM
1367 73 ff_dnxhdenc_init_x86(ctx);
1368 #endif
1369 73 }
1370