3 * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
4 * Copyright (c) 2011 MirriAd Ltd
5 * Copyright (c) 2015 Christophe Gisquet
7 * 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
8 * Slice multithreading and MB interlaced support added by Christophe Gisquet
10 * This file is part of FFmpeg.
12 * FFmpeg is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; either
15 * version 2.1 of the License, or (at your option) any later version.
17 * FFmpeg is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Lesser General Public License for more details.
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with FFmpeg; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include "libavutil/imgutils.h"
28 #include "libavutil/timer.h"
31 #define UNCHECKED_BITSTREAM_READER 1
33 #include "dnxhddata.h"
38 typedef struct RowContext {
39 DECLARE_ALIGNED(16, int16_t, blocks)[12][64];
46 /** -1:not set yet 0:off=RGB 1:on=YUV 2:variable */
50 typedef struct DNXHDContext {
51 AVCodecContext *avctx;
56 int64_t cid; ///< compression id
57 unsigned int width, height;
58 enum AVPixelFormat pix_fmt;
59 unsigned int mb_width, mb_height;
60 uint32_t mb_scan_index[256];
61 int data_offset; // End of mb_scan_index, where macroblocks start
62 int cur_field; ///< current interlaced field
63 VLC ac_vlc, dc_vlc, run_vlc;
66 const CIDEntry *cid_table;
67 int bit_depth; // 8, 10, 12 or 0 if not initialized at all.
71 int (*decode_dct_block)(const struct DNXHDContext *ctx,
72 RowContext *row, int n);
75 #define DNXHD_VLC_BITS 9
76 #define DNXHD_DC_VLC_BITS 7
78 static int dnxhd_decode_dct_block_8(const DNXHDContext *ctx,
79 RowContext *row, int n);
80 static int dnxhd_decode_dct_block_10(const DNXHDContext *ctx,
81 RowContext *row, int n);
82 static int dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx,
83 RowContext *row, int n);
84 static int dnxhd_decode_dct_block_12(const DNXHDContext *ctx,
85 RowContext *row, int n);
86 static int dnxhd_decode_dct_block_12_444(const DNXHDContext *ctx,
87 RowContext *row, int n);
89 static av_cold int dnxhd_decode_init(AVCodecContext *avctx)
91 DNXHDContext *ctx = avctx->priv_data;
95 avctx->colorspace = AVCOL_SPC_BT709;
97 avctx->coded_width = FFALIGN(avctx->width, 16);
98 avctx->coded_height = FFALIGN(avctx->height, 16);
100 ctx->rows = av_mallocz_array(avctx->thread_count, sizeof(RowContext));
102 return AVERROR(ENOMEM);
107 static int dnxhd_init_vlc(DNXHDContext *ctx, uint32_t cid, int bitdepth)
109 if (cid != ctx->cid) {
112 if ((index = ff_dnxhd_get_cid_table(cid)) < 0) {
113 av_log(ctx->avctx, AV_LOG_ERROR, "unsupported cid %d\n", cid);
114 return AVERROR(ENOSYS);
116 if (ff_dnxhd_cid_table[index].bit_depth != bitdepth &&
117 ff_dnxhd_cid_table[index].bit_depth != DNXHD_VARIABLE) {
118 av_log(ctx->avctx, AV_LOG_ERROR, "bit depth mismatches %d %d\n", ff_dnxhd_cid_table[index].bit_depth, bitdepth);
119 return AVERROR_INVALIDDATA;
121 ctx->cid_table = &ff_dnxhd_cid_table[index];
122 av_log(ctx->avctx, AV_LOG_VERBOSE, "Profile cid %d.\n", cid);
124 ff_free_vlc(&ctx->ac_vlc);
125 ff_free_vlc(&ctx->dc_vlc);
126 ff_free_vlc(&ctx->run_vlc);
128 init_vlc(&ctx->ac_vlc, DNXHD_VLC_BITS, 257,
129 ctx->cid_table->ac_bits, 1, 1,
130 ctx->cid_table->ac_codes, 2, 2, 0);
131 init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, bitdepth + 4,
132 ctx->cid_table->dc_bits, 1, 1,
133 ctx->cid_table->dc_codes, 1, 1, 0);
134 init_vlc(&ctx->run_vlc, DNXHD_VLC_BITS, 62,
135 ctx->cid_table->run_bits, 1, 1,
136 ctx->cid_table->run_codes, 2, 2, 0);
143 static av_cold int dnxhd_decode_init_thread_copy(AVCodecContext *avctx)
145 DNXHDContext *ctx = avctx->priv_data;
147 // make sure VLC tables will be loaded when cid is parsed
150 ctx->rows = av_mallocz_array(avctx->thread_count, sizeof(RowContext));
152 return AVERROR(ENOMEM);
157 static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
158 const uint8_t *buf, int buf_size,
161 static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 };
162 static const uint8_t header_prefix444[] = { 0x00, 0x00, 0x02, 0x80, 0x02 };
163 static const uint8_t header_prefixhr1[] = { 0x00, 0x00, 0x02, 0x80, 0x03 };
164 static const uint8_t header_prefixhr2[] = { 0x00, 0x00, 0x03, 0x8C, 0x03 };
166 int old_bit_depth = ctx->bit_depth, bitdepth;
168 if (buf_size < 0x280) {
169 av_log(ctx->avctx, AV_LOG_ERROR,
170 "buffer too small (%d < 640).\n", buf_size);
171 return AVERROR_INVALIDDATA;
174 if (memcmp(buf, header_prefix, 5) && memcmp(buf, header_prefix444, 5) &&
175 memcmp(buf, header_prefixhr1, 5) && memcmp(buf, header_prefixhr2, 5)) {
176 av_log(ctx->avctx, AV_LOG_ERROR,
177 "unknown header 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
178 buf[0], buf[1], buf[2], buf[3], buf[4]);
179 return AVERROR_INVALIDDATA;
181 if (buf[5] & 2) { /* interlaced */
182 ctx->cur_field = buf[5] & 1;
183 frame->interlaced_frame = 1;
184 frame->top_field_first = first_field ^ ctx->cur_field;
185 av_log(ctx->avctx, AV_LOG_DEBUG,
186 "interlaced %d, cur field %d\n", buf[5] & 3, ctx->cur_field);
190 ctx->mbaff = (buf[0x6] >> 5) & 1;
192 ctx->height = AV_RB16(buf + 0x18);
193 ctx->width = AV_RB16(buf + 0x1a);
195 switch(buf[0x21] >> 5) {
196 case 1: bitdepth = 8; break;
197 case 2: bitdepth = 10; break;
198 case 3: bitdepth = 12; break;
200 av_log(ctx->avctx, AV_LOG_ERROR,
201 "Unknown bitdepth indicator (%d)\n", buf[0x21] >> 5);
202 return AVERROR_INVALIDDATA;
205 cid = AV_RB32(buf + 0x28);
206 if ((ret = dnxhd_init_vlc(ctx, cid, bitdepth)) < 0)
208 if (ctx->mbaff && ctx->cid_table->cid != 1260)
209 av_log(ctx->avctx, AV_LOG_WARNING,
210 "Adaptive MB interlace flag in an unsupported profile.\n");
212 ctx->act = buf[0x2C] & 7;
213 if (ctx->act && ctx->cid_table->cid != 1256 && ctx->cid_table->cid != 1270)
214 av_log(ctx->avctx, AV_LOG_WARNING,
215 "Adaptive color transform in an unsupported profile.\n");
217 ctx->is_444 = (buf[0x2C] >> 6) & 1;
220 avpriv_request_sample(ctx->avctx, "4:4:4 8 bits\n");
221 return AVERROR_INVALIDDATA;
222 } else if (bitdepth == 10) {
223 ctx->decode_dct_block = dnxhd_decode_dct_block_10_444;
224 ctx->pix_fmt = ctx->act ? AV_PIX_FMT_YUV444P10
227 ctx->decode_dct_block = dnxhd_decode_dct_block_12_444;
228 ctx->pix_fmt = ctx->act ? AV_PIX_FMT_YUV444P12
231 } else if (bitdepth == 12) {
232 ctx->decode_dct_block = dnxhd_decode_dct_block_12;
233 ctx->pix_fmt = AV_PIX_FMT_YUV422P12;
234 } else if (bitdepth == 10) {
235 ctx->decode_dct_block = dnxhd_decode_dct_block_10;
236 ctx->pix_fmt = AV_PIX_FMT_YUV422P10;
238 ctx->decode_dct_block = dnxhd_decode_dct_block_8;
239 ctx->pix_fmt = AV_PIX_FMT_YUV422P;
242 ctx->avctx->bits_per_raw_sample = ctx->bit_depth = bitdepth;
243 if (ctx->bit_depth != old_bit_depth) {
244 ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
245 ff_idctdsp_init(&ctx->idsp, ctx->avctx);
246 ff_init_scantable(ctx->idsp.idct_permutation, &ctx->scantable,
250 // make sure profile size constraints are respected
251 // DNx100 allows 1920->1440 and 1280->960 subsampling
252 if (ctx->width != ctx->cid_table->width &&
253 ctx->cid_table->width != DNXHD_VARIABLE) {
254 av_reduce(&ctx->avctx->sample_aspect_ratio.num,
255 &ctx->avctx->sample_aspect_ratio.den,
256 ctx->width, ctx->cid_table->width, 255);
257 ctx->width = ctx->cid_table->width;
260 if (buf_size < ctx->cid_table->coding_unit_size) {
261 av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size (%d < %d).\n",
262 buf_size, ctx->cid_table->coding_unit_size);
263 return AVERROR_INVALIDDATA;
266 ctx->mb_width = (ctx->width + 15)>> 4;
267 ctx->mb_height = buf[0x16d];
269 if ((ctx->height + 15) >> 4 == ctx->mb_height && frame->interlaced_frame)
272 av_log(ctx->avctx, AV_LOG_VERBOSE, "%dx%d, 4:%s %d bits, MBAFF=%d ACT=%d\n",
273 ctx->width, ctx->height, ctx->is_444 ? "4:4" : "2:2",
274 ctx->bit_depth, ctx->mbaff, ctx->act);
276 // Newer format supports variable mb_scan_index sizes
277 if (!memcmp(buf, header_prefixhr2, 5)) {
278 ctx->data_offset = 0x170 + (ctx->mb_height << 2);
280 if (ctx->mb_height > 68 ||
281 (ctx->mb_height << frame->interlaced_frame) > (ctx->height + 15) >> 4) {
282 av_log(ctx->avctx, AV_LOG_ERROR,
283 "mb height too big: %d\n", ctx->mb_height);
284 return AVERROR_INVALIDDATA;
286 ctx->data_offset = 0x280;
289 if (buf_size < ctx->data_offset) {
290 av_log(ctx->avctx, AV_LOG_ERROR,
291 "buffer too small (%d < %d).\n", buf_size, ctx->data_offset);
292 return AVERROR_INVALIDDATA;
295 av_assert0((unsigned)ctx->mb_height <= FF_ARRAY_ELEMS(ctx->mb_scan_index));
297 for (i = 0; i < ctx->mb_height; i++) {
298 ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i << 2));
299 ff_dlog(ctx->avctx, "mb scan index %d, pos %d: %u\n", i, 0x170 + (i << 2), ctx->mb_scan_index[i]);
300 if (buf_size - ctx->data_offset < ctx->mb_scan_index[i]) {
301 av_log(ctx->avctx, AV_LOG_ERROR,
302 "invalid mb scan index (%u vs %u).\n",
303 ctx->mb_scan_index[i], buf_size - ctx->data_offset);
304 return AVERROR_INVALIDDATA;
311 static av_always_inline int dnxhd_decode_dct_block(const DNXHDContext *ctx,
319 int i, j, index1, index2, len, flags;
320 int level, component, sign;
322 const uint8_t *weight_matrix;
323 const uint8_t *ac_info = ctx->cid_table->ac_info;
324 int16_t *block = row->blocks[n];
325 const int eob_index = ctx->cid_table->eob_index;
327 OPEN_READER(bs, &row->gb);
329 ctx->bdsp.clear_block(block);
333 component = 1 + (n & 1);
334 scale = row->chroma_scale;
335 weight_matrix = ctx->cid_table->chroma_weight;
338 scale = row->luma_scale;
339 weight_matrix = ctx->cid_table->luma_weight;
342 component = (n >> 1) % 3;
344 scale = row->chroma_scale;
345 weight_matrix = ctx->cid_table->chroma_weight;
347 scale = row->luma_scale;
348 weight_matrix = ctx->cid_table->luma_weight;
352 UPDATE_CACHE(bs, &row->gb);
353 GET_VLC(len, bs, &row->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1);
355 level = GET_CACHE(bs, &row->gb);
356 LAST_SKIP_BITS(bs, &row->gb, len);
358 level = (NEG_USR32(sign ^ level, len) ^ sign) - sign;
359 row->last_dc[component] += level << dc_shift;
361 block[0] = row->last_dc[component];
365 UPDATE_CACHE(bs, &row->gb);
366 GET_VLC(index1, bs, &row->gb, ctx->ac_vlc.table,
369 while (index1 != eob_index) {
370 level = ac_info[2*index1+0];
371 flags = ac_info[2*index1+1];
373 sign = SHOW_SBITS(bs, &row->gb, 1);
374 SKIP_BITS(bs, &row->gb, 1);
377 level += SHOW_UBITS(bs, &row->gb, index_bits) << 7;
378 SKIP_BITS(bs, &row->gb, index_bits);
382 UPDATE_CACHE(bs, &row->gb);
383 GET_VLC(index2, bs, &row->gb, ctx->run_vlc.table,
385 i += ctx->cid_table->run[index2];
389 av_log(ctx->avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", n, i);
394 j = ctx->scantable.permutated[i];
396 level += scale[i] >> 1;
397 if (level_bias < 32 || weight_matrix[i] != level_bias)
398 level += level_bias; // 1<<(level_shift-1)
399 level >>= level_shift;
401 block[j] = (level ^ sign) - sign;
403 UPDATE_CACHE(bs, &row->gb);
404 GET_VLC(index1, bs, &row->gb, ctx->ac_vlc.table,
408 CLOSE_READER(bs, &row->gb);
412 static int dnxhd_decode_dct_block_8(const DNXHDContext *ctx,
413 RowContext *row, int n)
415 return dnxhd_decode_dct_block(ctx, row, n, 4, 32, 6, 0);
418 static int dnxhd_decode_dct_block_10(const DNXHDContext *ctx,
419 RowContext *row, int n)
421 return dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4, 0);
424 static int dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx,
425 RowContext *row, int n)
427 return dnxhd_decode_dct_block(ctx, row, n, 6, 32, 6, 0);
430 static int dnxhd_decode_dct_block_12(const DNXHDContext *ctx,
431 RowContext *row, int n)
433 return dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4, 2);
436 static int dnxhd_decode_dct_block_12_444(const DNXHDContext *ctx,
437 RowContext *row, int n)
439 return dnxhd_decode_dct_block(ctx, row, n, 6, 32, 4, 2);
442 static int dnxhd_decode_macroblock(const DNXHDContext *ctx, RowContext *row,
443 AVFrame *frame, int x, int y)
445 int shift1 = ctx->bit_depth >= 10;
446 int dct_linesize_luma = frame->linesize[0];
447 int dct_linesize_chroma = frame->linesize[1];
448 uint8_t *dest_y, *dest_u, *dest_v;
449 int dct_y_offset, dct_x_offset;
451 int interlaced_mb = 0;
454 interlaced_mb = get_bits1(&row->gb);
455 qscale = get_bits(&row->gb, 10);
457 qscale = get_bits(&row->gb, 11);
459 act = get_bits1(&row->gb);
462 static int act_warned;
465 av_log(ctx->avctx, AV_LOG_ERROR,
466 "ACT flag set, in violation of frame header.\n");
468 } else if (row->format == -1) {
470 } else if (row->format != act) {
471 row->format = 2; // Variable
475 if (qscale != row->last_qscale) {
476 for (i = 0; i < 64; i++) {
477 row->luma_scale[i] = qscale * ctx->cid_table->luma_weight[i];
478 row->chroma_scale[i] = qscale * ctx->cid_table->chroma_weight[i];
480 row->last_qscale = qscale;
483 for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
484 if (ctx->decode_dct_block(ctx, row, i) < 0)
485 return AVERROR_INVALIDDATA;
488 if (frame->interlaced_frame) {
489 dct_linesize_luma <<= 1;
490 dct_linesize_chroma <<= 1;
493 dest_y = frame->data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1));
494 dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
495 dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
497 if (frame->interlaced_frame && ctx->cur_field) {
498 dest_y += frame->linesize[0];
499 dest_u += frame->linesize[1];
500 dest_v += frame->linesize[2];
503 dct_linesize_luma <<= 1;
504 dct_linesize_chroma <<= 1;
507 dct_y_offset = interlaced_mb ? frame->linesize[0] : (dct_linesize_luma << 3);
508 dct_x_offset = 8 << shift1;
510 ctx->idsp.idct_put(dest_y, dct_linesize_luma, row->blocks[0]);
511 ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, row->blocks[1]);
512 ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, row->blocks[4]);
513 ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, row->blocks[5]);
515 if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
516 dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
517 ctx->idsp.idct_put(dest_u, dct_linesize_chroma, row->blocks[2]);
518 ctx->idsp.idct_put(dest_v, dct_linesize_chroma, row->blocks[3]);
519 ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, row->blocks[6]);
520 ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, row->blocks[7]);
523 ctx->idsp.idct_put(dest_y, dct_linesize_luma, row->blocks[0]);
524 ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, row->blocks[1]);
525 ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, row->blocks[6]);
526 ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, row->blocks[7]);
528 if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
529 dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
530 ctx->idsp.idct_put(dest_u, dct_linesize_chroma, row->blocks[2]);
531 ctx->idsp.idct_put(dest_u + dct_x_offset, dct_linesize_chroma, row->blocks[3]);
532 ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, row->blocks[8]);
533 ctx->idsp.idct_put(dest_u + dct_y_offset + dct_x_offset, dct_linesize_chroma, row->blocks[9]);
534 ctx->idsp.idct_put(dest_v, dct_linesize_chroma, row->blocks[4]);
535 ctx->idsp.idct_put(dest_v + dct_x_offset, dct_linesize_chroma, row->blocks[5]);
536 ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, row->blocks[10]);
537 ctx->idsp.idct_put(dest_v + dct_y_offset + dct_x_offset, dct_linesize_chroma, row->blocks[11]);
544 static int dnxhd_decode_row(AVCodecContext *avctx, void *data,
545 int rownb, int threadnb)
547 const DNXHDContext *ctx = avctx->priv_data;
548 uint32_t offset = ctx->mb_scan_index[rownb];
549 RowContext *row = ctx->rows + threadnb;
554 row->last_dc[2] = 1 << (ctx->bit_depth + 2); // for levels +2^(bitdepth-1)
555 init_get_bits(&row->gb, ctx->buf + offset, (ctx->buf_size - offset) << 3);
556 for (x = 0; x < ctx->mb_width; x++) {
558 int ret = dnxhd_decode_macroblock(ctx, row, data, x, rownb);
563 //STOP_TIMER("decode macroblock");
569 static int dnxhd_decode_frame(AVCodecContext *avctx, void *data,
570 int *got_frame, AVPacket *avpkt)
572 const uint8_t *buf = avpkt->data;
573 int buf_size = avpkt->size;
574 DNXHDContext *ctx = avctx->priv_data;
575 ThreadFrame frame = { .f = data };
576 AVFrame *picture = data;
580 ff_dlog(avctx, "frame size %d\n", buf_size);
582 for (i = 0; i < avctx->thread_count; i++)
583 ctx->rows[i].format = -1;
586 if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0)
589 if ((avctx->width || avctx->height) &&
590 (ctx->width != avctx->width || ctx->height != avctx->height)) {
591 av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n",
592 avctx->width, avctx->height, ctx->width, ctx->height);
595 if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) {
596 av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n",
597 av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt));
601 avctx->pix_fmt = ctx->pix_fmt;
602 ret = ff_set_dimensions(avctx, ctx->width, ctx->height);
607 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
609 picture->pict_type = AV_PICTURE_TYPE_I;
610 picture->key_frame = 1;
613 ctx->buf_size = buf_size - ctx->data_offset;
614 ctx->buf = buf + ctx->data_offset;
615 avctx->execute2(avctx, dnxhd_decode_row, picture, NULL, ctx->mb_height);
617 if (first_field && picture->interlaced_frame) {
618 buf += ctx->cid_table->coding_unit_size;
619 buf_size -= ctx->cid_table->coding_unit_size;
621 goto decode_coding_unit;
625 for (i = 0; i < avctx->thread_count; i++) {
626 ret += ctx->rows[i].errors;
627 ctx->rows[i].errors = 0;
631 static int act_warned;
632 int format = ctx->rows[0].format;
633 for (i = 1; i < avctx->thread_count; i++) {
634 if (ctx->rows[i].format != format &&
635 ctx->rows[i].format != -1 /* not run */) {
645 av_log(ctx->avctx, AV_LOG_ERROR,
646 "Unsupported: variable ACT flag.\n");
650 ctx->pix_fmt = ctx->bit_depth==10
651 ? AV_PIX_FMT_GBRP10 : AV_PIX_FMT_GBRP12;
654 ctx->pix_fmt = ctx->bit_depth==10
655 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV444P12;
659 avctx->pix_fmt = ctx->pix_fmt;
661 av_log(ctx->avctx, AV_LOG_ERROR, "%d lines with errors\n", ret);
662 return AVERROR_INVALIDDATA;
669 static av_cold int dnxhd_decode_close(AVCodecContext *avctx)
671 DNXHDContext *ctx = avctx->priv_data;
673 ff_free_vlc(&ctx->ac_vlc);
674 ff_free_vlc(&ctx->dc_vlc);
675 ff_free_vlc(&ctx->run_vlc);
677 av_freep(&ctx->rows);
682 AVCodec ff_dnxhd_decoder = {
684 .long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
685 .type = AVMEDIA_TYPE_VIDEO,
686 .id = AV_CODEC_ID_DNXHD,
687 .priv_data_size = sizeof(DNXHDContext),
688 .init = dnxhd_decode_init,
689 .close = dnxhd_decode_close,
690 .decode = dnxhd_decode_frame,
691 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
692 AV_CODEC_CAP_SLICE_THREADS,
693 .init_thread_copy = ONLY_IF_THREADS_ENABLED(dnxhd_decode_init_thread_copy),