3 * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
4 * Copyright (c) 2011 MirriAd Ltd
6 * VC-3 encoder funded by the British Broadcasting Corporation
7 * 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
9 * This file is part of FFmpeg.
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.
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.
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
26 #include "libavutil/attributes.h"
27 #include "libavutil/internal.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/timer.h"
35 #include "mpegvideo.h"
36 #include "pixblockdsp.h"
40 // The largest value that will not lead to overflow for 10-bit samples.
41 #define DNX10BIT_QMAT_SHIFT 18
42 #define RC_VARIANCE 1 // use variance or ssd for fast rc
43 #define LAMBDA_FRAC_BITS 10
45 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
46 static const AVOption options[] = {
47 { "nitris_compat", "encode with Avid Nitris compatibility",
48 offsetof(DNXHDEncContext, nitris_compat), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
49 { "ibias", "intra quant bias",
50 offsetof(DNXHDEncContext, intra_quant_bias), AV_OPT_TYPE_INT,
51 { .i64 = 0 }, INT_MIN, INT_MAX, VE },
52 { "profile", NULL, offsetof(DNXHDEncContext, profile), AV_OPT_TYPE_INT,
53 { .i64 = FF_PROFILE_DNXHD },
54 FF_PROFILE_DNXHD, FF_PROFILE_DNXHR_444, VE, "profile" },
55 { "dnxhd", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHD },
56 0, 0, VE, "profile" },
57 { "dnxhr_444", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHR_444 },
58 0, 0, VE, "profile" },
59 { "dnxhr_hqx", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHR_HQX },
60 0, 0, VE, "profile" },
61 { "dnxhr_hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHR_HQ },
62 0, 0, VE, "profile" },
63 { "dnxhr_sq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHR_SQ },
64 0, 0, VE, "profile" },
65 { "dnxhr_lb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_DNXHR_LB },
66 0, 0, VE, "profile" },
70 static const AVClass dnxhd_class = {
71 .class_name = "dnxhd",
72 .item_name = av_default_item_name,
74 .version = LIBAVUTIL_VERSION_INT,
77 static void dnxhd_8bit_get_pixels_8x4_sym(int16_t *av_restrict block,
78 const uint8_t *pixels,
82 for (i = 0; i < 4; i++) {
94 memcpy(block, block - 8, sizeof(*block) * 8);
95 memcpy(block + 8, block - 16, sizeof(*block) * 8);
96 memcpy(block + 16, block - 24, sizeof(*block) * 8);
97 memcpy(block + 24, block - 32, sizeof(*block) * 8);
100 static av_always_inline
101 void dnxhd_10bit_get_pixels_8x4_sym(int16_t *av_restrict block,
102 const uint8_t *pixels,
105 memcpy(block + 0 * 8, pixels + 0 * line_size, 8 * sizeof(*block));
106 memcpy(block + 7 * 8, pixels + 0 * line_size, 8 * sizeof(*block));
107 memcpy(block + 1 * 8, pixels + 1 * line_size, 8 * sizeof(*block));
108 memcpy(block + 6 * 8, pixels + 1 * line_size, 8 * sizeof(*block));
109 memcpy(block + 2 * 8, pixels + 2 * line_size, 8 * sizeof(*block));
110 memcpy(block + 5 * 8, pixels + 2 * line_size, 8 * sizeof(*block));
111 memcpy(block + 3 * 8, pixels + 3 * line_size, 8 * sizeof(*block));
112 memcpy(block + 4 * 8, pixels + 3 * line_size, 8 * sizeof(*block));
115 static int dnxhd_10bit_dct_quantize_444(MpegEncContext *ctx, int16_t *block,
116 int n, int qscale, int *overflow)
118 int i, j, level, last_non_zero, start_i;
120 const uint8_t *scantable= ctx->intra_scantable.scantable;
123 unsigned int threshold1, threshold2;
125 ctx->fdsp.fdct(block);
127 block[0] = (block[0] + 2) >> 2;
130 qmat = n < 4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
131 bias= ctx->intra_quant_bias * (1 << (16 - 8));
132 threshold1 = (1 << 16) - bias - 1;
133 threshold2 = (threshold1 << 1);
135 for (i = 63; i >= start_i; i--) {
137 level = block[j] * qmat[j];
139 if (((unsigned)(level + threshold1)) > threshold2) {
147 for (i = start_i; i <= last_non_zero; i++) {
149 level = block[j] * qmat[j];
151 if (((unsigned)(level + threshold1)) > threshold2) {
153 level = (bias + level) >> 16;
156 level = (bias - level) >> 16;
164 *overflow = ctx->max_qcoeff < max; //overflow might have happened
166 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
167 if (ctx->idsp.perm_type != FF_IDCT_PERM_NONE)
168 ff_block_permute(block, ctx->idsp.idct_permutation,
169 scantable, last_non_zero);
171 return last_non_zero;
174 static int dnxhd_10bit_dct_quantize(MpegEncContext *ctx, int16_t *block,
175 int n, int qscale, int *overflow)
177 const uint8_t *scantable= ctx->intra_scantable.scantable;
178 const int *qmat = n<4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
179 int last_non_zero = 0;
182 ctx->fdsp.fdct(block);
184 // Divide by 4 with rounding, to compensate scaling of DCT coefficients
185 block[0] = (block[0] + 2) >> 2;
187 for (i = 1; i < 64; ++i) {
188 int j = scantable[i];
189 int sign = FF_SIGNBIT(block[j]);
190 int level = (block[j] ^ sign) - sign;
191 level = level * qmat[j] >> DNX10BIT_QMAT_SHIFT;
192 block[j] = (level ^ sign) - sign;
197 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
198 if (ctx->idsp.perm_type != FF_IDCT_PERM_NONE)
199 ff_block_permute(block, ctx->idsp.idct_permutation,
200 scantable, last_non_zero);
202 return last_non_zero;
205 static av_cold int dnxhd_init_vlc(DNXHDEncContext *ctx)
207 int i, j, level, run;
208 int max_level = 1 << (ctx->bit_depth + 2);
210 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->vlc_codes,
211 max_level, 4 * sizeof(*ctx->vlc_codes), fail);
212 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->vlc_bits,
213 max_level, 4 * sizeof(*ctx->vlc_bits), fail);
214 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->run_codes,
216 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->run_bits,
219 ctx->vlc_codes += max_level * 2;
220 ctx->vlc_bits += max_level * 2;
221 for (level = -max_level; level < max_level; level++) {
222 for (run = 0; run < 2; run++) {
223 int index = (level << 1) | run;
224 int sign, offset = 0, alevel = level;
226 MASK_ABS(sign, alevel);
228 offset = (alevel - 1) >> 6;
229 alevel -= offset << 6;
231 for (j = 0; j < 257; j++) {
232 if (ctx->cid_table->ac_info[2*j+0] >> 1 == alevel &&
233 (!offset || (ctx->cid_table->ac_info[2*j+1] & 1) && offset) &&
234 (!run || (ctx->cid_table->ac_info[2*j+1] & 2) && run)) {
235 av_assert1(!ctx->vlc_codes[index]);
237 ctx->vlc_codes[index] =
238 (ctx->cid_table->ac_codes[j] << 1) | (sign & 1);
239 ctx->vlc_bits[index] = ctx->cid_table->ac_bits[j] + 1;
241 ctx->vlc_codes[index] = ctx->cid_table->ac_codes[j];
242 ctx->vlc_bits[index] = ctx->cid_table->ac_bits[j];
247 av_assert0(!alevel || j < 257);
249 ctx->vlc_codes[index] =
250 (ctx->vlc_codes[index] << ctx->cid_table->index_bits) | offset;
251 ctx->vlc_bits[index] += ctx->cid_table->index_bits;
255 for (i = 0; i < 62; i++) {
256 int run = ctx->cid_table->run[i];
257 av_assert0(run < 63);
258 ctx->run_codes[run] = ctx->cid_table->run_codes[i];
259 ctx->run_bits[run] = ctx->cid_table->run_bits[i];
263 return AVERROR(ENOMEM);
266 static av_cold int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
268 // init first elem to 1 to avoid div by 0 in convert_matrix
269 uint16_t weight_matrix[64] = { 1, }; // convert_matrix needs uint16_t*
271 const uint8_t *luma_weight_table = ctx->cid_table->luma_weight;
272 const uint8_t *chroma_weight_table = ctx->cid_table->chroma_weight;
274 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->qmatrix_l,
275 (ctx->m.avctx->qmax + 1), 64 * sizeof(int), fail);
276 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->qmatrix_c,
277 (ctx->m.avctx->qmax + 1), 64 * sizeof(int), fail);
278 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->qmatrix_l16,
279 (ctx->m.avctx->qmax + 1), 64 * 2 * sizeof(uint16_t),
281 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->qmatrix_c16,
282 (ctx->m.avctx->qmax + 1), 64 * 2 * sizeof(uint16_t),
285 if (ctx->bit_depth == 8) {
286 for (i = 1; i < 64; i++) {
287 int j = ctx->m.idsp.idct_permutation[ff_zigzag_direct[i]];
288 weight_matrix[j] = ctx->cid_table->luma_weight[i];
290 ff_convert_matrix(&ctx->m, ctx->qmatrix_l, ctx->qmatrix_l16,
291 weight_matrix, ctx->intra_quant_bias, 1,
292 ctx->m.avctx->qmax, 1);
293 for (i = 1; i < 64; i++) {
294 int j = ctx->m.idsp.idct_permutation[ff_zigzag_direct[i]];
295 weight_matrix[j] = ctx->cid_table->chroma_weight[i];
297 ff_convert_matrix(&ctx->m, ctx->qmatrix_c, ctx->qmatrix_c16,
298 weight_matrix, ctx->intra_quant_bias, 1,
299 ctx->m.avctx->qmax, 1);
301 for (qscale = 1; qscale <= ctx->m.avctx->qmax; qscale++) {
302 for (i = 0; i < 64; i++) {
303 ctx->qmatrix_l[qscale][i] <<= 2;
304 ctx->qmatrix_c[qscale][i] <<= 2;
305 ctx->qmatrix_l16[qscale][0][i] <<= 2;
306 ctx->qmatrix_l16[qscale][1][i] <<= 2;
307 ctx->qmatrix_c16[qscale][0][i] <<= 2;
308 ctx->qmatrix_c16[qscale][1][i] <<= 2;
313 for (qscale = 1; qscale <= ctx->m.avctx->qmax; qscale++) {
314 for (i = 1; i < 64; i++) {
315 int j = ff_zigzag_direct[i];
317 /* The quantization formula from the VC-3 standard is:
318 * quantized = sign(block[i]) * floor(abs(block[i]/s) * p /
319 * (qscale * weight_table[i]))
320 * Where p is 32 for 8-bit samples and 8 for 10-bit ones.
321 * The s factor compensates scaling of DCT coefficients done by
322 * the DCT routines, and therefore is not present in standard.
323 * It's 8 for 8-bit samples and 4 for 10-bit ones.
324 * We want values of ctx->qtmatrix_l and ctx->qtmatrix_r to be:
325 * ((1 << DNX10BIT_QMAT_SHIFT) * (p / s)) /
326 * (qscale * weight_table[i])
327 * For 10-bit samples, p / s == 2 */
328 ctx->qmatrix_l[qscale][j] = (1 << (DNX10BIT_QMAT_SHIFT + 1)) /
329 (qscale * luma_weight_table[i]);
330 ctx->qmatrix_c[qscale][j] = (1 << (DNX10BIT_QMAT_SHIFT + 1)) /
331 (qscale * chroma_weight_table[i]);
336 ctx->m.q_chroma_intra_matrix16 = ctx->qmatrix_c16;
337 ctx->m.q_chroma_intra_matrix = ctx->qmatrix_c;
338 ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
339 ctx->m.q_intra_matrix = ctx->qmatrix_l;
343 return AVERROR(ENOMEM);
346 static av_cold int dnxhd_init_rc(DNXHDEncContext *ctx)
348 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->mb_rc, (ctx->m.avctx->qmax + 1),
349 ctx->m.mb_num * sizeof(RCEntry), fail);
350 if (ctx->m.avctx->mb_decision != FF_MB_DECISION_RD) {
351 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->mb_cmp,
352 ctx->m.mb_num, sizeof(RCCMPEntry), fail);
353 FF_ALLOCZ_ARRAY_OR_GOTO(ctx->m.avctx, ctx->mb_cmp_tmp,
354 ctx->m.mb_num, sizeof(RCCMPEntry), fail);
356 ctx->frame_bits = (ctx->coding_unit_size -
357 ctx->data_offset - 4 - ctx->min_padding) * 8;
359 ctx->lambda = 2 << LAMBDA_FRAC_BITS; // qscale 2
362 return AVERROR(ENOMEM);
365 static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
367 DNXHDEncContext *ctx = avctx->priv_data;
370 switch (avctx->pix_fmt) {
371 case AV_PIX_FMT_YUV422P:
374 case AV_PIX_FMT_YUV422P10:
375 case AV_PIX_FMT_YUV444P10:
376 case AV_PIX_FMT_GBRP10:
380 av_log(avctx, AV_LOG_ERROR,
381 "pixel format is incompatible with DNxHD\n");
382 return AVERROR(EINVAL);
385 if ((ctx->profile == FF_PROFILE_DNXHR_444 && (avctx->pix_fmt != AV_PIX_FMT_YUV444P10 &&
386 avctx->pix_fmt != AV_PIX_FMT_GBRP10)) ||
387 (ctx->profile != FF_PROFILE_DNXHR_444 && (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 ||
388 avctx->pix_fmt == AV_PIX_FMT_GBRP10))) {
389 av_log(avctx, AV_LOG_ERROR,
390 "pixel format is incompatible with DNxHD profile\n");
391 return AVERROR(EINVAL);
394 if (ctx->profile == FF_PROFILE_DNXHR_HQX && avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
395 av_log(avctx, AV_LOG_ERROR,
396 "pixel format is incompatible with DNxHR HQX profile\n");
397 return AVERROR(EINVAL);
400 if ((ctx->profile == FF_PROFILE_DNXHR_LB ||
401 ctx->profile == FF_PROFILE_DNXHR_SQ ||
402 ctx->profile == FF_PROFILE_DNXHR_HQ) && avctx->pix_fmt != AV_PIX_FMT_YUV422P) {
403 av_log(avctx, AV_LOG_ERROR,
404 "pixel format is incompatible with DNxHR LB/SQ/HQ profile\n");
405 return AVERROR(EINVAL);
408 ctx->is_444 = ctx->profile == FF_PROFILE_DNXHR_444;
409 avctx->profile = ctx->profile;
410 ctx->cid = ff_dnxhd_find_cid(avctx, ctx->bit_depth);
412 av_log(avctx, AV_LOG_ERROR,
413 "video parameters incompatible with DNxHD. Valid DNxHD profiles:\n");
414 ff_dnxhd_print_profiles(avctx, AV_LOG_ERROR);
415 return AVERROR(EINVAL);
417 av_log(avctx, AV_LOG_DEBUG, "cid %d\n", ctx->cid);
419 if (ctx->cid >= 1270 && ctx->cid <= 1274)
420 avctx->codec_tag = MKTAG('A','V','d','h');
422 if (avctx->width < 256 || avctx->height < 120) {
423 av_log(avctx, AV_LOG_ERROR,
424 "Input dimensions too small, input must be at least 256x120\n");
425 return AVERROR(EINVAL);
428 index = ff_dnxhd_get_cid_table(ctx->cid);
429 av_assert0(index >= 0);
431 ctx->cid_table = &ff_dnxhd_cid_table[index];
433 ctx->m.avctx = avctx;
437 avctx->bits_per_raw_sample = ctx->bit_depth;
439 ff_blockdsp_init(&ctx->bdsp, avctx);
440 ff_fdctdsp_init(&ctx->m.fdsp, avctx);
441 ff_mpv_idct_init(&ctx->m);
442 ff_mpegvideoencdsp_init(&ctx->m.mpvencdsp, avctx);
443 ff_pixblockdsp_init(&ctx->m.pdsp, avctx);
444 ff_dct_encode_init(&ctx->m);
446 if (ctx->profile != FF_PROFILE_DNXHD)
447 ff_videodsp_init(&ctx->m.vdsp, ctx->bit_depth);
449 if (!ctx->m.dct_quantize)
450 ctx->m.dct_quantize = ff_dct_quantize_c;
452 if (ctx->is_444 || ctx->profile == FF_PROFILE_DNXHR_HQX) {
453 ctx->m.dct_quantize = dnxhd_10bit_dct_quantize_444;
454 ctx->get_pixels_8x4_sym = dnxhd_10bit_get_pixels_8x4_sym;
455 ctx->block_width_l2 = 4;
456 } else if (ctx->bit_depth == 10) {
457 ctx->m.dct_quantize = dnxhd_10bit_dct_quantize;
458 ctx->get_pixels_8x4_sym = dnxhd_10bit_get_pixels_8x4_sym;
459 ctx->block_width_l2 = 4;
461 ctx->get_pixels_8x4_sym = dnxhd_8bit_get_pixels_8x4_sym;
462 ctx->block_width_l2 = 3;
466 ff_dnxhdenc_init_x86(ctx);
468 ctx->m.mb_height = (avctx->height + 15) / 16;
469 ctx->m.mb_width = (avctx->width + 15) / 16;
471 if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
473 ctx->m.mb_height /= 2;
476 ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;
478 if (ctx->cid_table->frame_size == DNXHD_VARIABLE) {
479 ctx->frame_size = ff_dnxhd_get_hr_frame_size(ctx->cid,
480 avctx->width, avctx->height);
481 ctx->coding_unit_size = ctx->frame_size;
483 ctx->frame_size = ctx->cid_table->frame_size;
484 ctx->coding_unit_size = ctx->cid_table->coding_unit_size;
487 if (ctx->m.mb_height > 68)
488 ctx->data_offset = 0x170 + (ctx->m.mb_height << 2);
490 ctx->data_offset = 0x280;
492 #if FF_API_QUANT_BIAS
493 FF_DISABLE_DEPRECATION_WARNINGS
494 if (avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
495 ctx->intra_quant_bias = avctx->intra_quant_bias;
496 FF_ENABLE_DEPRECATION_WARNINGS
498 // XXX tune lbias/cbias
499 if ((ret = dnxhd_init_qmat(ctx, ctx->intra_quant_bias, 0)) < 0)
502 /* Avid Nitris hardware decoder requires a minimum amount of padding
503 * in the coding unit payload */
504 if (ctx->nitris_compat)
505 ctx->min_padding = 1600;
507 if ((ret = dnxhd_init_vlc(ctx)) < 0)
509 if ((ret = dnxhd_init_rc(ctx)) < 0)
512 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->slice_size,
513 ctx->m.mb_height * sizeof(uint32_t), fail);
514 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->slice_offs,
515 ctx->m.mb_height * sizeof(uint32_t), fail);
516 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_bits,
517 ctx->m.mb_num * sizeof(uint16_t), fail);
518 FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_qscale,
519 ctx->m.mb_num * sizeof(uint8_t), fail);
521 #if FF_API_CODED_FRAME
522 FF_DISABLE_DEPRECATION_WARNINGS
523 avctx->coded_frame->key_frame = 1;
524 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
525 FF_ENABLE_DEPRECATION_WARNINGS
528 if (avctx->thread_count > MAX_THREADS) {
529 av_log(avctx, AV_LOG_ERROR, "too many threads\n");
530 return AVERROR(EINVAL);
533 if (avctx->qmax <= 1) {
534 av_log(avctx, AV_LOG_ERROR, "qmax must be at least 2\n");
535 return AVERROR(EINVAL);
538 ctx->thread[0] = ctx;
539 for (i = 1; i < avctx->thread_count; i++) {
540 ctx->thread[i] = av_malloc(sizeof(DNXHDEncContext));
541 memcpy(ctx->thread[i], ctx, sizeof(DNXHDEncContext));
545 fail: // for FF_ALLOCZ_OR_GOTO
546 return AVERROR(ENOMEM);
549 static int dnxhd_write_header(AVCodecContext *avctx, uint8_t *buf)
551 DNXHDEncContext *ctx = avctx->priv_data;
553 memset(buf, 0, ctx->data_offset);
556 AV_WB16(buf + 0x02, ctx->data_offset);
557 if (ctx->cid >= 1270 && ctx->cid <= 1274)
562 buf[5] = ctx->interlaced ? ctx->cur_field + 2 : 0x01;
563 buf[6] = 0x80; // crc flag off
564 buf[7] = 0xa0; // reserved
565 AV_WB16(buf + 0x18, avctx->height >> ctx->interlaced); // ALPF
566 AV_WB16(buf + 0x1a, avctx->width); // SPL
567 AV_WB16(buf + 0x1d, avctx->height >> ctx->interlaced); // NAL
569 buf[0x21] = ctx->bit_depth == 10 ? 0x58 : 0x38;
570 buf[0x22] = 0x88 + (ctx->interlaced << 2);
571 AV_WB32(buf + 0x28, ctx->cid); // CID
572 buf[0x2c] = (!ctx->interlaced << 7) | (ctx->is_444 << 6) | (avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
574 buf[0x5f] = 0x01; // UDL
576 buf[0x167] = 0x02; // reserved
577 AV_WB16(buf + 0x16a, ctx->m.mb_height * 4 + 4); // MSIPS
578 AV_WB16(buf + 0x16c, ctx->m.mb_height); // Ns
579 buf[0x16f] = 0x10; // reserved
581 ctx->msip = buf + 0x170;
585 static av_always_inline void dnxhd_encode_dc(DNXHDEncContext *ctx, int diff)
589 nbits = av_log2_16bit(-2 * diff);
592 nbits = av_log2_16bit(2 * diff);
594 put_bits(&ctx->m.pb, ctx->cid_table->dc_bits[nbits] + nbits,
595 (ctx->cid_table->dc_codes[nbits] << nbits) +
596 av_mod_uintp2(diff, nbits));
599 static av_always_inline
600 void dnxhd_encode_block(DNXHDEncContext *ctx, int16_t *block,
601 int last_index, int n)
603 int last_non_zero = 0;
606 dnxhd_encode_dc(ctx, block[0] - ctx->m.last_dc[n]);
607 ctx->m.last_dc[n] = block[0];
609 for (i = 1; i <= last_index; i++) {
610 j = ctx->m.intra_scantable.permutated[i];
613 int run_level = i - last_non_zero - 1;
614 int rlevel = (slevel << 1) | !!run_level;
615 put_bits(&ctx->m.pb, ctx->vlc_bits[rlevel], ctx->vlc_codes[rlevel]);
617 put_bits(&ctx->m.pb, ctx->run_bits[run_level],
618 ctx->run_codes[run_level]);
622 put_bits(&ctx->m.pb, ctx->vlc_bits[0], ctx->vlc_codes[0]); // EOB
625 static av_always_inline
626 void dnxhd_unquantize_c(DNXHDEncContext *ctx, int16_t *block, int n,
627 int qscale, int last_index)
629 const uint8_t *weight_matrix;
634 weight_matrix = ((n % 6) < 2) ? ctx->cid_table->luma_weight
635 : ctx->cid_table->chroma_weight;
637 weight_matrix = (n & 2) ? ctx->cid_table->chroma_weight
638 : ctx->cid_table->luma_weight;
641 for (i = 1; i <= last_index; i++) {
642 int j = ctx->m.intra_scantable.permutated[i];
646 level = (1 - 2 * level) * qscale * weight_matrix[i];
647 if (ctx->bit_depth == 10) {
648 if (weight_matrix[i] != 8)
652 if (weight_matrix[i] != 32)
658 level = (2 * level + 1) * qscale * weight_matrix[i];
659 if (ctx->bit_depth == 10) {
660 if (weight_matrix[i] != 8)
664 if (weight_matrix[i] != 32)
674 static av_always_inline int dnxhd_ssd_block(int16_t *qblock, int16_t *block)
678 for (i = 0; i < 64; i++)
679 score += (block[i] - qblock[i]) * (block[i] - qblock[i]);
683 static av_always_inline
684 int dnxhd_calc_ac_bits(DNXHDEncContext *ctx, int16_t *block, int last_index)
686 int last_non_zero = 0;
689 for (i = 1; i <= last_index; i++) {
690 j = ctx->m.intra_scantable.permutated[i];
693 int run_level = i - last_non_zero - 1;
694 bits += ctx->vlc_bits[(level << 1) |
695 !!run_level] + ctx->run_bits[run_level];
702 static av_always_inline
703 void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, int mb_y)
705 const int bs = ctx->block_width_l2;
706 const int bw = 1 << bs;
707 int dct_y_offset = ctx->dct_y_offset;
708 int dct_uv_offset = ctx->dct_uv_offset;
709 int linesize = ctx->m.linesize;
710 int uvlinesize = ctx->m.uvlinesize;
711 const uint8_t *ptr_y = ctx->thread[0]->src[0] +
712 ((mb_y << 4) * ctx->m.linesize) + (mb_x << bs + 1);
713 const uint8_t *ptr_u = ctx->thread[0]->src[1] +
714 ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << bs + ctx->is_444);
715 const uint8_t *ptr_v = ctx->thread[0]->src[2] +
716 ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << bs + ctx->is_444);
717 PixblockDSPContext *pdsp = &ctx->m.pdsp;
718 VideoDSPContext *vdsp = &ctx->m.vdsp;
720 if (ctx->bit_depth != 10 && vdsp->emulated_edge_mc && ((mb_x << 4) + 16 > ctx->m.avctx->width ||
721 (mb_y << 4) + 16 > ctx->m.avctx->height)) {
722 int y_w = ctx->m.avctx->width - (mb_x << 4);
723 int y_h = ctx->m.avctx->height - (mb_y << 4);
724 int uv_w = (y_w + 1) / 2;
729 vdsp->emulated_edge_mc(&ctx->edge_buf_y[0], ptr_y,
730 linesize, ctx->m.linesize,
733 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[0][0], ptr_u,
734 uvlinesize, ctx->m.uvlinesize,
737 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[1][0], ptr_v,
738 uvlinesize, ctx->m.uvlinesize,
742 dct_y_offset = bw * linesize;
743 dct_uv_offset = bw * uvlinesize;
744 ptr_y = &ctx->edge_buf_y[0];
745 ptr_u = &ctx->edge_buf_uv[0][0];
746 ptr_v = &ctx->edge_buf_uv[1][0];
747 } else if (ctx->bit_depth == 10 && vdsp->emulated_edge_mc && ((mb_x << 3) + 8 > ctx->m.avctx->width ||
748 (mb_y << 3) + 8 > ctx->m.avctx->height)) {
749 int y_w = ctx->m.avctx->width - (mb_x << 3);
750 int y_h = ctx->m.avctx->height - (mb_y << 3);
751 int uv_w = ctx->is_444 ? y_w : (y_w + 1) / 2;
754 uvlinesize = 8 + 8 * ctx->is_444;
756 vdsp->emulated_edge_mc(&ctx->edge_buf_y[0], ptr_y,
757 linesize, ctx->m.linesize,
760 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[0][0], ptr_u,
761 uvlinesize, ctx->m.uvlinesize,
764 vdsp->emulated_edge_mc(&ctx->edge_buf_uv[1][0], ptr_v,
765 uvlinesize, ctx->m.uvlinesize,
769 dct_y_offset = bw * linesize;
770 dct_uv_offset = bw * uvlinesize;
771 ptr_y = &ctx->edge_buf_y[0];
772 ptr_u = &ctx->edge_buf_uv[0][0];
773 ptr_v = &ctx->edge_buf_uv[1][0];
777 pdsp->get_pixels(ctx->blocks[0], ptr_y, linesize);
778 pdsp->get_pixels(ctx->blocks[1], ptr_y + bw, linesize);
779 pdsp->get_pixels(ctx->blocks[2], ptr_u, uvlinesize);
780 pdsp->get_pixels(ctx->blocks[3], ptr_v, uvlinesize);
782 if (mb_y + 1 == ctx->m.mb_height && ctx->m.avctx->height == 1080) {
783 if (ctx->interlaced) {
784 ctx->get_pixels_8x4_sym(ctx->blocks[4],
785 ptr_y + dct_y_offset,
787 ctx->get_pixels_8x4_sym(ctx->blocks[5],
788 ptr_y + dct_y_offset + bw,
790 ctx->get_pixels_8x4_sym(ctx->blocks[6],
791 ptr_u + dct_uv_offset,
793 ctx->get_pixels_8x4_sym(ctx->blocks[7],
794 ptr_v + dct_uv_offset,
797 ctx->bdsp.clear_block(ctx->blocks[4]);
798 ctx->bdsp.clear_block(ctx->blocks[5]);
799 ctx->bdsp.clear_block(ctx->blocks[6]);
800 ctx->bdsp.clear_block(ctx->blocks[7]);
803 pdsp->get_pixels(ctx->blocks[4],
804 ptr_y + dct_y_offset, linesize);
805 pdsp->get_pixels(ctx->blocks[5],
806 ptr_y + dct_y_offset + bw, linesize);
807 pdsp->get_pixels(ctx->blocks[6],
808 ptr_u + dct_uv_offset, uvlinesize);
809 pdsp->get_pixels(ctx->blocks[7],
810 ptr_v + dct_uv_offset, uvlinesize);
813 pdsp->get_pixels(ctx->blocks[0], ptr_y, linesize);
814 pdsp->get_pixels(ctx->blocks[1], ptr_y + bw, linesize);
815 pdsp->get_pixels(ctx->blocks[6], ptr_y + dct_y_offset, linesize);
816 pdsp->get_pixels(ctx->blocks[7], ptr_y + dct_y_offset + bw, linesize);
818 pdsp->get_pixels(ctx->blocks[2], ptr_u, uvlinesize);
819 pdsp->get_pixels(ctx->blocks[3], ptr_u + bw, uvlinesize);
820 pdsp->get_pixels(ctx->blocks[8], ptr_u + dct_uv_offset, uvlinesize);
821 pdsp->get_pixels(ctx->blocks[9], ptr_u + dct_uv_offset + bw, uvlinesize);
823 pdsp->get_pixels(ctx->blocks[4], ptr_v, uvlinesize);
824 pdsp->get_pixels(ctx->blocks[5], ptr_v + bw, uvlinesize);
825 pdsp->get_pixels(ctx->blocks[10], ptr_v + dct_uv_offset, uvlinesize);
826 pdsp->get_pixels(ctx->blocks[11], ptr_v + dct_uv_offset + bw, uvlinesize);
830 static av_always_inline
831 int dnxhd_switch_matrix(DNXHDEncContext *ctx, int i)
838 const static uint8_t component[8]={0,0,1,2,0,0,1,2};
844 static int dnxhd_calc_bits_thread(AVCodecContext *avctx, void *arg,
845 int jobnr, int threadnr)
847 DNXHDEncContext *ctx = avctx->priv_data;
848 int mb_y = jobnr, mb_x;
849 int qscale = ctx->qscale;
850 LOCAL_ALIGNED_16(int16_t, block, [64]);
851 ctx = ctx->thread[threadnr];
855 ctx->m.last_dc[2] = 1 << (ctx->bit_depth + 2);
857 for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
858 unsigned mb = mb_y * ctx->m.mb_width + mb_x;
864 dnxhd_get_blocks(ctx, mb_x, mb_y);
866 for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
867 int16_t *src_block = ctx->blocks[i];
868 int overflow, nbits, diff, last_index;
869 int n = dnxhd_switch_matrix(ctx, i);
871 memcpy(block, src_block, 64 * sizeof(*block));
872 last_index = ctx->m.dct_quantize(&ctx->m, block,
873 ctx->is_444 ? 4 * (n > 0): 4 & (2*i),
875 ac_bits += dnxhd_calc_ac_bits(ctx, block, last_index);
877 diff = block[0] - ctx->m.last_dc[n];
879 nbits = av_log2_16bit(-2 * diff);
881 nbits = av_log2_16bit(2 * diff);
883 av_assert1(nbits < ctx->bit_depth + 4);
884 dc_bits += ctx->cid_table->dc_bits[nbits] + nbits;
886 ctx->m.last_dc[n] = block[0];
888 if (avctx->mb_decision == FF_MB_DECISION_RD || !RC_VARIANCE) {
889 dnxhd_unquantize_c(ctx, block, i, qscale, last_index);
890 ctx->m.idsp.idct(block);
891 ssd += dnxhd_ssd_block(block, src_block);
894 ctx->mb_rc[(qscale * ctx->m.mb_num) + mb].ssd = ssd;
895 ctx->mb_rc[(qscale * ctx->m.mb_num) + mb].bits = ac_bits + dc_bits + 12 +
896 (1 + ctx->is_444) * 8 * ctx->vlc_bits[0];
901 static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg,
902 int jobnr, int threadnr)
904 DNXHDEncContext *ctx = avctx->priv_data;
905 int mb_y = jobnr, mb_x;
906 ctx = ctx->thread[threadnr];
907 init_put_bits(&ctx->m.pb, (uint8_t *)arg + ctx->data_offset + ctx->slice_offs[jobnr],
908 ctx->slice_size[jobnr]);
912 ctx->m.last_dc[2] = 1 << (ctx->bit_depth + 2);
913 for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
914 unsigned mb = mb_y * ctx->m.mb_width + mb_x;
915 int qscale = ctx->mb_qscale[mb];
918 put_bits(&ctx->m.pb, 11, qscale);
919 put_bits(&ctx->m.pb, 1, avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
921 dnxhd_get_blocks(ctx, mb_x, mb_y);
923 for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
924 int16_t *block = ctx->blocks[i];
925 int overflow, n = dnxhd_switch_matrix(ctx, i);
926 int last_index = ctx->m.dct_quantize(&ctx->m, block,
927 ctx->is_444 ? (((i >> 1) % 3) < 1 ? 0 : 4): 4 & (2*i),
930 dnxhd_encode_block(ctx, block, last_index, n);
931 // STOP_TIMER("encode_block");
934 if (put_bits_count(&ctx->m.pb) & 31)
935 put_bits(&ctx->m.pb, 32 - (put_bits_count(&ctx->m.pb) & 31), 0);
936 flush_put_bits(&ctx->m.pb);
940 static void dnxhd_setup_threads_slices(DNXHDEncContext *ctx)
944 for (mb_y = 0; mb_y < ctx->m.mb_height; mb_y++) {
946 ctx->slice_offs[mb_y] = offset;
947 ctx->slice_size[mb_y] = 0;
948 for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
949 unsigned mb = mb_y * ctx->m.mb_width + mb_x;
950 ctx->slice_size[mb_y] += ctx->mb_bits[mb];
952 ctx->slice_size[mb_y] = (ctx->slice_size[mb_y] + 31) & ~31;
953 ctx->slice_size[mb_y] >>= 3;
954 thread_size = ctx->slice_size[mb_y];
955 offset += thread_size;
959 static int dnxhd_mb_var_thread(AVCodecContext *avctx, void *arg,
960 int jobnr, int threadnr)
962 DNXHDEncContext *ctx = avctx->priv_data;
963 int mb_y = jobnr, mb_x, x, y;
964 int partial_last_row = (mb_y == ctx->m.mb_height - 1) &&
965 ((avctx->height >> ctx->interlaced) & 0xF);
967 ctx = ctx->thread[threadnr];
968 if (ctx->bit_depth == 8) {
969 uint8_t *pix = ctx->thread[0]->src[0] + ((mb_y << 4) * ctx->m.linesize);
970 for (mb_x = 0; mb_x < ctx->m.mb_width; ++mb_x, pix += 16) {
971 unsigned mb = mb_y * ctx->m.mb_width + mb_x;
975 if (!partial_last_row && mb_x * 16 <= avctx->width - 16 && (avctx->width % 16) == 0) {
976 sum = ctx->m.mpvencdsp.pix_sum(pix, ctx->m.linesize);
977 varc = ctx->m.mpvencdsp.pix_norm1(pix, ctx->m.linesize);
979 int bw = FFMIN(avctx->width - 16 * mb_x, 16);
980 int bh = FFMIN((avctx->height >> ctx->interlaced) - 16 * mb_y, 16);
982 for (y = 0; y < bh; y++) {
983 for (x = 0; x < bw; x++) {
984 uint8_t val = pix[x + y * ctx->m.linesize];
990 varc = (varc - (((unsigned) sum * sum) >> 8) + 128) >> 8;
992 ctx->mb_cmp[mb].value = varc;
993 ctx->mb_cmp[mb].mb = mb;
996 const int linesize = ctx->m.linesize >> 1;
997 for (mb_x = 0; mb_x < ctx->m.mb_width; ++mb_x) {
998 uint16_t *pix = (uint16_t *)ctx->thread[0]->src[0] +
999 ((mb_y << 4) * linesize) + (mb_x << 4);
1000 unsigned mb = mb_y * ctx->m.mb_width + mb_x;
1003 int bw = FFMIN(avctx->width - 16 * mb_x, 16);
1004 int bh = FFMIN((avctx->height >> ctx->interlaced) - 16 * mb_y, 16);
1007 // Macroblocks are 16x16 pixels, unlike DCT blocks which are 8x8.
1008 for (i = 0; i < bh; ++i) {
1009 for (j = 0; j < bw; ++j) {
1010 // Turn 16-bit pixels into 10-bit ones.
1011 const int sample = (unsigned) pix[j] >> 6;
1013 sqsum += sample * sample;
1014 // 2^10 * 2^10 * 16 * 16 = 2^28, which is less than INT_MAX
1018 mean = sum >> 8; // 16*16 == 2^8
1019 sqmean = sqsum >> 8;
1020 ctx->mb_cmp[mb].value = sqmean - mean * mean;
1021 ctx->mb_cmp[mb].mb = mb;
1027 static int dnxhd_encode_rdo(AVCodecContext *avctx, DNXHDEncContext *ctx)
1029 int lambda, up_step, down_step;
1030 int last_lower = INT_MAX, last_higher = 0;
1033 for (q = 1; q < avctx->qmax; q++) {
1035 avctx->execute2(avctx, dnxhd_calc_bits_thread,
1036 NULL, NULL, ctx->m.mb_height);
1038 up_step = down_step = 2 << LAMBDA_FRAC_BITS;
1039 lambda = ctx->lambda;
1044 if (lambda == last_higher) {
1046 end = 1; // need to set final qscales/bits
1048 for (y = 0; y < ctx->m.mb_height; y++) {
1049 for (x = 0; x < ctx->m.mb_width; x++) {
1050 unsigned min = UINT_MAX;
1052 int mb = y * ctx->m.mb_width + x;
1054 for (q = 1; q < avctx->qmax; q++) {
1055 int i = (q*ctx->m.mb_num) + mb;
1056 unsigned score = ctx->mb_rc[i].bits * lambda +
1057 ((unsigned) ctx->mb_rc[i].ssd << LAMBDA_FRAC_BITS);
1064 bits += ctx->mb_rc[rc].bits;
1065 ctx->mb_qscale[mb] = qscale;
1066 ctx->mb_bits[mb] = ctx->mb_rc[rc].bits;
1068 bits = (bits + 31) & ~31; // padding
1069 if (bits > ctx->frame_bits)
1073 if (bits > ctx->frame_bits)
1074 return AVERROR(EINVAL);
1077 if (bits < ctx->frame_bits) {
1078 last_lower = FFMIN(lambda, last_lower);
1079 if (last_higher != 0)
1080 lambda = (lambda+last_higher)>>1;
1082 lambda -= down_step;
1083 down_step = FFMIN((int64_t)down_step*5, INT_MAX);
1084 up_step = 1<<LAMBDA_FRAC_BITS;
1085 lambda = FFMAX(1, lambda);
1086 if (lambda == last_lower)
1089 last_higher = FFMAX(lambda, last_higher);
1090 if (last_lower != INT_MAX)
1091 lambda = (lambda+last_lower)>>1;
1092 else if ((int64_t)lambda + up_step > INT_MAX)
1093 return AVERROR(EINVAL);
1096 up_step = FFMIN((int64_t)up_step*5, INT_MAX);
1097 down_step = 1<<LAMBDA_FRAC_BITS;
1100 ctx->lambda = lambda;
1104 static int dnxhd_find_qscale(DNXHDEncContext *ctx)
1109 int last_higher = 0;
1110 int last_lower = INT_MAX;
1114 qscale = ctx->qscale;
1117 ctx->qscale = qscale;
1118 // XXX avoid recalculating bits
1119 ctx->m.avctx->execute2(ctx->m.avctx, dnxhd_calc_bits_thread,
1120 NULL, NULL, ctx->m.mb_height);
1121 for (y = 0; y < ctx->m.mb_height; y++) {
1122 for (x = 0; x < ctx->m.mb_width; x++)
1123 bits += ctx->mb_rc[(qscale*ctx->m.mb_num) + (y*ctx->m.mb_width+x)].bits;
1124 bits = (bits+31)&~31; // padding
1125 if (bits > ctx->frame_bits)
1128 if (bits < ctx->frame_bits) {
1131 if (last_higher == qscale - 1) {
1132 qscale = last_higher;
1135 last_lower = FFMIN(qscale, last_lower);
1136 if (last_higher != 0)
1137 qscale = (qscale + last_higher) >> 1;
1139 qscale -= down_step++;
1144 if (last_lower == qscale + 1)
1146 last_higher = FFMAX(qscale, last_higher);
1147 if (last_lower != INT_MAX)
1148 qscale = (qscale + last_lower) >> 1;
1150 qscale += up_step++;
1152 if (qscale >= ctx->m.avctx->qmax)
1153 return AVERROR(EINVAL);
1156 ctx->qscale = qscale;
1160 #define BUCKET_BITS 8
1161 #define RADIX_PASSES 4
1162 #define NBUCKETS (1 << BUCKET_BITS)
1164 static inline int get_bucket(int value, int shift)
1167 value &= NBUCKETS - 1;
1168 return NBUCKETS - 1 - value;
1171 static void radix_count(const RCCMPEntry *data, int size,
1172 int buckets[RADIX_PASSES][NBUCKETS])
1175 memset(buckets, 0, sizeof(buckets[0][0]) * RADIX_PASSES * NBUCKETS);
1176 for (i = 0; i < size; i++) {
1177 int v = data[i].value;
1178 for (j = 0; j < RADIX_PASSES; j++) {
1179 buckets[j][get_bucket(v, 0)]++;
1184 for (j = 0; j < RADIX_PASSES; j++) {
1186 for (i = NBUCKETS - 1; i >= 0; i--)
1187 buckets[j][i] = offset -= buckets[j][i];
1188 av_assert1(!buckets[j][0]);
1192 static void radix_sort_pass(RCCMPEntry *dst, const RCCMPEntry *data,
1193 int size, int buckets[NBUCKETS], int pass)
1195 int shift = pass * BUCKET_BITS;
1197 for (i = 0; i < size; i++) {
1198 int v = get_bucket(data[i].value, shift);
1199 int pos = buckets[v]++;
1204 static void radix_sort(RCCMPEntry *data, RCCMPEntry *tmp, int size)
1206 int buckets[RADIX_PASSES][NBUCKETS];
1207 radix_count(data, size, buckets);
1208 radix_sort_pass(tmp, data, size, buckets[0], 0);
1209 radix_sort_pass(data, tmp, size, buckets[1], 1);
1210 if (buckets[2][NBUCKETS - 1] || buckets[3][NBUCKETS - 1]) {
1211 radix_sort_pass(tmp, data, size, buckets[2], 2);
1212 radix_sort_pass(data, tmp, size, buckets[3], 3);
1216 static int dnxhd_encode_fast(AVCodecContext *avctx, DNXHDEncContext *ctx)
1220 if ((ret = dnxhd_find_qscale(ctx)) < 0)
1222 for (y = 0; y < ctx->m.mb_height; y++) {
1223 for (x = 0; x < ctx->m.mb_width; x++) {
1224 int mb = y * ctx->m.mb_width + x;
1225 int rc = (ctx->qscale * ctx->m.mb_num ) + mb;
1227 ctx->mb_qscale[mb] = ctx->qscale;
1228 ctx->mb_bits[mb] = ctx->mb_rc[rc].bits;
1229 max_bits += ctx->mb_rc[rc].bits;
1231 delta_bits = ctx->mb_rc[rc].bits -
1232 ctx->mb_rc[rc + ctx->m.mb_num].bits;
1233 ctx->mb_cmp[mb].mb = mb;
1234 ctx->mb_cmp[mb].value =
1235 delta_bits ? ((ctx->mb_rc[rc].ssd -
1236 ctx->mb_rc[rc + ctx->m.mb_num].ssd) * 100) /
1238 : INT_MIN; // avoid increasing qscale
1241 max_bits += 31; // worst padding
1245 avctx->execute2(avctx, dnxhd_mb_var_thread,
1246 NULL, NULL, ctx->m.mb_height);
1247 radix_sort(ctx->mb_cmp, ctx->mb_cmp_tmp, ctx->m.mb_num);
1248 for (x = 0; x < ctx->m.mb_num && max_bits > ctx->frame_bits; x++) {
1249 int mb = ctx->mb_cmp[x].mb;
1250 int rc = (ctx->qscale * ctx->m.mb_num ) + mb;
1251 max_bits -= ctx->mb_rc[rc].bits -
1252 ctx->mb_rc[rc + ctx->m.mb_num].bits;
1253 ctx->mb_qscale[mb] = ctx->qscale + 1;
1254 ctx->mb_bits[mb] = ctx->mb_rc[rc + ctx->m.mb_num].bits;
1260 static void dnxhd_load_picture(DNXHDEncContext *ctx, const AVFrame *frame)
1264 for (i = 0; i < ctx->m.avctx->thread_count; i++) {
1265 ctx->thread[i]->m.linesize = frame->linesize[0] << ctx->interlaced;
1266 ctx->thread[i]->m.uvlinesize = frame->linesize[1] << ctx->interlaced;
1267 ctx->thread[i]->dct_y_offset = ctx->m.linesize *8;
1268 ctx->thread[i]->dct_uv_offset = ctx->m.uvlinesize*8;
1271 #if FF_API_CODED_FRAME
1272 FF_DISABLE_DEPRECATION_WARNINGS
1273 ctx->m.avctx->coded_frame->interlaced_frame = frame->interlaced_frame;
1274 FF_ENABLE_DEPRECATION_WARNINGS
1276 ctx->cur_field = frame->interlaced_frame && !frame->top_field_first;
1279 static int dnxhd_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
1280 const AVFrame *frame, int *got_packet)
1282 DNXHDEncContext *ctx = avctx->priv_data;
1283 int first_field = 1;
1287 if ((ret = ff_alloc_packet2(avctx, pkt, ctx->frame_size, 0)) < 0)
1291 dnxhd_load_picture(ctx, frame);
1294 for (i = 0; i < 3; i++) {
1295 ctx->src[i] = frame->data[i];
1296 if (ctx->interlaced && ctx->cur_field)
1297 ctx->src[i] += frame->linesize[i];
1300 dnxhd_write_header(avctx, buf);
1302 if (avctx->mb_decision == FF_MB_DECISION_RD)
1303 ret = dnxhd_encode_rdo(avctx, ctx);
1305 ret = dnxhd_encode_fast(avctx, ctx);
1307 av_log(avctx, AV_LOG_ERROR,
1308 "picture could not fit ratecontrol constraints, increase qmax\n");
1312 dnxhd_setup_threads_slices(ctx);
1315 for (i = 0; i < ctx->m.mb_height; i++) {
1316 AV_WB32(ctx->msip + i * 4, offset);
1317 offset += ctx->slice_size[i];
1318 av_assert1(!(ctx->slice_size[i] & 3));
1321 avctx->execute2(avctx, dnxhd_encode_thread, buf, NULL, ctx->m.mb_height);
1323 av_assert1(ctx->data_offset + offset + 4 <= ctx->coding_unit_size);
1324 memset(buf + ctx->data_offset + offset, 0,
1325 ctx->coding_unit_size - 4 - offset - ctx->data_offset);
1327 AV_WB32(buf + ctx->coding_unit_size - 4, 0x600DC0DE); // EOF
1329 if (ctx->interlaced && first_field) {
1331 ctx->cur_field ^= 1;
1332 buf += ctx->coding_unit_size;
1333 goto encode_coding_unit;
1336 #if FF_API_CODED_FRAME
1337 FF_DISABLE_DEPRECATION_WARNINGS
1338 avctx->coded_frame->quality = ctx->qscale * FF_QP2LAMBDA;
1339 FF_ENABLE_DEPRECATION_WARNINGS
1342 ff_side_data_set_encoder_stats(pkt, ctx->qscale * FF_QP2LAMBDA, NULL, 0, AV_PICTURE_TYPE_I);
1344 pkt->flags |= AV_PKT_FLAG_KEY;
1349 static av_cold int dnxhd_encode_end(AVCodecContext *avctx)
1351 DNXHDEncContext *ctx = avctx->priv_data;
1352 int max_level = 1 << (ctx->bit_depth + 2);
1355 av_free(ctx->vlc_codes - max_level * 2);
1356 av_free(ctx->vlc_bits - max_level * 2);
1357 av_freep(&ctx->run_codes);
1358 av_freep(&ctx->run_bits);
1360 av_freep(&ctx->mb_bits);
1361 av_freep(&ctx->mb_qscale);
1362 av_freep(&ctx->mb_rc);
1363 av_freep(&ctx->mb_cmp);
1364 av_freep(&ctx->mb_cmp_tmp);
1365 av_freep(&ctx->slice_size);
1366 av_freep(&ctx->slice_offs);
1368 av_freep(&ctx->qmatrix_c);
1369 av_freep(&ctx->qmatrix_l);
1370 av_freep(&ctx->qmatrix_c16);
1371 av_freep(&ctx->qmatrix_l16);
1373 for (i = 1; i < avctx->thread_count; i++)
1374 av_freep(&ctx->thread[i]);
1379 static const AVCodecDefault dnxhd_defaults[] = {
1380 { "qmax", "1024" }, /* Maximum quantization scale factor allowed for VC-3 */
1384 AVCodec ff_dnxhd_encoder = {
1386 .long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
1387 .type = AVMEDIA_TYPE_VIDEO,
1388 .id = AV_CODEC_ID_DNXHD,
1389 .priv_data_size = sizeof(DNXHDEncContext),
1390 .init = dnxhd_encode_init,
1391 .encode2 = dnxhd_encode_picture,
1392 .close = dnxhd_encode_end,
1393 .capabilities = AV_CODEC_CAP_SLICE_THREADS,
1394 .pix_fmts = (const enum AVPixelFormat[]) {
1396 AV_PIX_FMT_YUV422P10,
1397 AV_PIX_FMT_YUV444P10,
1401 .priv_class = &dnxhd_class,
1402 .defaults = dnxhd_defaults,
1403 .profiles = NULL_IF_CONFIG_SMALL(ff_dnxhd_profiles),