2 * Copyright (c) 2010-2011 Maxim Poliakovski
3 * Copyright (c) 2010-2011 Elvis Presley
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy), 'ap4h' (4444)
29 #define LONG_BITSTREAM_READER
31 #include "libavutil/internal.h"
36 #include "simple_idct.h"
37 #include "proresdec.h"
38 #include "proresdata.h"
41 static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
44 for (i = 0; i < 64; i++)
45 dst[i] = permutation[src[i]];
48 static av_cold int decode_init(AVCodecContext *avctx)
50 ProresContext *ctx = avctx->priv_data;
51 uint8_t idct_permutation[64];
53 avctx->bits_per_raw_sample = 10;
55 ff_blockdsp_init(&ctx->bdsp, avctx);
56 ff_proresdsp_init(&ctx->prodsp, avctx);
58 ff_init_scantable_permutation(idct_permutation,
59 ctx->prodsp.idct_permutation_type);
61 permute(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
62 permute(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
67 static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
68 const int data_size, AVCodecContext *avctx)
70 int hdr_size, width, height, flags;
74 hdr_size = AV_RB16(buf);
75 ff_dlog(avctx, "header size %d\n", hdr_size);
76 if (hdr_size > data_size) {
77 av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
78 return AVERROR_INVALIDDATA;
81 version = AV_RB16(buf + 2);
82 ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
84 av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
85 return AVERROR_PATCHWELCOME;
88 width = AV_RB16(buf + 8);
89 height = AV_RB16(buf + 10);
90 if (width != avctx->width || height != avctx->height) {
91 av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
92 avctx->width, avctx->height, width, height);
93 return AVERROR_PATCHWELCOME;
96 ctx->frame_type = (buf[12] >> 2) & 3;
97 ctx->alpha_info = buf[17] & 0xf;
99 if (ctx->alpha_info > 2) {
100 av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
101 return AVERROR_INVALIDDATA;
103 if (avctx->skip_alpha) ctx->alpha_info = 0;
105 ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
107 if (ctx->frame_type == 0) {
108 ctx->scan = ctx->progressive_scan; // permuted
110 ctx->scan = ctx->interlaced_scan; // permuted
111 ctx->frame->interlaced_frame = 1;
112 ctx->frame->top_field_first = ctx->frame_type == 1;
115 if (ctx->alpha_info) {
116 avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
118 avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
121 avctx->color_primaries = buf[14];
122 avctx->color_trc = buf[15];
123 avctx->colorspace = buf[16];
124 avctx->color_range = AVCOL_RANGE_MPEG;
128 ff_dlog(avctx, "flags %x\n", flags);
131 if(buf + data_size - ptr < 64) {
132 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
133 return AVERROR_INVALIDDATA;
135 permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
138 memset(ctx->qmat_luma, 4, 64);
142 if(buf + data_size - ptr < 64) {
143 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
144 return AVERROR_INVALIDDATA;
146 permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
148 memset(ctx->qmat_chroma, 4, 64);
154 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
156 ProresContext *ctx = avctx->priv_data;
157 int i, hdr_size, slice_count;
158 unsigned pic_data_size;
159 int log2_slice_mb_width, log2_slice_mb_height;
160 int slice_mb_count, mb_x, mb_y;
161 const uint8_t *data_ptr, *index_ptr;
163 hdr_size = buf[0] >> 3;
164 if (hdr_size < 8 || hdr_size > buf_size) {
165 av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
166 return AVERROR_INVALIDDATA;
169 pic_data_size = AV_RB32(buf + 1);
170 if (pic_data_size > buf_size) {
171 av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
172 return AVERROR_INVALIDDATA;
175 log2_slice_mb_width = buf[7] >> 4;
176 log2_slice_mb_height = buf[7] & 0xF;
177 if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
178 av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
179 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
180 return AVERROR_INVALIDDATA;
183 ctx->mb_width = (avctx->width + 15) >> 4;
185 ctx->mb_height = (avctx->height + 31) >> 5;
187 ctx->mb_height = (avctx->height + 15) >> 4;
189 // QT ignores the written value
190 // slice_count = AV_RB16(buf + 5);
191 slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
192 av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
194 if (ctx->slice_count != slice_count || !ctx->slices) {
195 av_freep(&ctx->slices);
196 ctx->slice_count = 0;
197 ctx->slices = av_mallocz_array(slice_count, sizeof(*ctx->slices));
199 return AVERROR(ENOMEM);
200 ctx->slice_count = slice_count;
204 return AVERROR(EINVAL);
206 if (hdr_size + slice_count*2 > buf_size) {
207 av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
208 return AVERROR_INVALIDDATA;
211 // parse slice information
212 index_ptr = buf + hdr_size;
213 data_ptr = index_ptr + slice_count*2;
215 slice_mb_count = 1 << log2_slice_mb_width;
219 for (i = 0; i < slice_count; i++) {
220 SliceContext *slice = &ctx->slices[i];
222 slice->data = data_ptr;
223 data_ptr += AV_RB16(index_ptr + i*2);
225 while (ctx->mb_width - mb_x < slice_mb_count)
226 slice_mb_count >>= 1;
230 slice->mb_count = slice_mb_count;
231 slice->data_size = data_ptr - slice->data;
233 if (slice->data_size < 6) {
234 av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
235 return AVERROR_INVALIDDATA;
238 mb_x += slice_mb_count;
239 if (mb_x == ctx->mb_width) {
240 slice_mb_count = 1 << log2_slice_mb_width;
244 if (data_ptr > buf + buf_size) {
245 av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
246 return AVERROR_INVALIDDATA;
250 if (mb_x || mb_y != ctx->mb_height) {
251 av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
252 mb_y, ctx->mb_height);
253 return AVERROR_INVALIDDATA;
256 return pic_data_size;
259 #define DECODE_CODEWORD(val, codebook, SKIP) \
261 unsigned int rice_order, exp_order, switch_bits; \
262 unsigned int q, buf, bits; \
264 UPDATE_CACHE(re, gb); \
265 buf = GET_CACHE(re, gb); \
267 /* number of bits to switch between rice and exp golomb */ \
268 switch_bits = codebook & 3; \
269 rice_order = codebook >> 5; \
270 exp_order = (codebook >> 2) & 7; \
272 q = 31 - av_log2(buf); \
274 if (q > switch_bits) { /* exp golomb */ \
275 bits = exp_order - switch_bits + (q<<1); \
276 if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
277 return AVERROR_INVALIDDATA; \
278 val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
279 ((switch_bits + 1) << rice_order); \
280 SKIP(re, gb, bits); \
281 } else if (rice_order) { \
282 SKIP_BITS(re, gb, q+1); \
283 val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
284 SKIP(re, gb, rice_order); \
291 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
293 #define FIRST_DC_CB 0xB8
295 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
297 static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out,
298 int blocks_per_slice)
305 DECODE_CODEWORD(code, FIRST_DC_CB, LAST_SKIP_BITS);
306 prev_dc = TOSIGNED(code);
309 out += 64; // dc coeff for the next block
313 for (i = 1; i < blocks_per_slice; i++, out += 64) {
314 DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)], LAST_SKIP_BITS);
315 if(code) sign ^= -(code & 1);
317 prev_dc += (((code + 1) >> 1) ^ sign) - sign;
320 CLOSE_READER(re, gb);
324 // adaptive codebook switching lut according to previous run/level values
325 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
326 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
328 static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
329 int16_t *out, int blocks_per_slice)
331 ProresContext *ctx = avctx->priv_data;
332 int block_mask, sign;
333 unsigned pos, run, level;
334 int max_coeffs, i, bits_left;
335 int log2_block_count = av_log2(blocks_per_slice);
338 UPDATE_CACHE(re, gb); \
342 max_coeffs = 64 << log2_block_count;
343 block_mask = blocks_per_slice - 1;
345 for (pos = block_mask;;) {
346 bits_left = gb->size_in_bits - re_index;
347 if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
350 DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)], LAST_SKIP_BITS);
352 if (pos >= max_coeffs) {
353 av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
354 return AVERROR_INVALIDDATA;
357 DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
360 i = pos >> log2_block_count;
362 sign = SHOW_SBITS(re, gb, 1);
363 SKIP_BITS(re, gb, 1);
364 out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
367 CLOSE_READER(re, gb);
371 static int decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
372 uint16_t *dst, int dst_stride,
373 const uint8_t *buf, unsigned buf_size,
376 ProresContext *ctx = avctx->priv_data;
377 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
380 int i, blocks_per_slice = slice->mb_count<<2;
383 for (i = 0; i < blocks_per_slice; i++)
384 ctx->bdsp.clear_block(blocks+(i<<6));
386 init_get_bits(&gb, buf, buf_size << 3);
388 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
390 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
394 for (i = 0; i < slice->mb_count; i++) {
395 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
396 ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
397 ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
398 ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
405 static int decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
406 uint16_t *dst, int dst_stride,
407 const uint8_t *buf, unsigned buf_size,
408 const int16_t *qmat, int log2_blocks_per_mb)
410 ProresContext *ctx = avctx->priv_data;
411 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
414 int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
417 for (i = 0; i < blocks_per_slice; i++)
418 ctx->bdsp.clear_block(blocks+(i<<6));
420 init_get_bits(&gb, buf, buf_size << 3);
422 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
424 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
428 for (i = 0; i < slice->mb_count; i++) {
429 for (j = 0; j < log2_blocks_per_mb; j++) {
430 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
431 ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
439 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
442 const int mask = (1 << num_bits) - 1;
443 int i, idx, val, alpha_val;
450 val = get_bits(gb, num_bits);
453 val = get_bits(gb, num_bits == 16 ? 7 : 4);
455 val = (val + 2) >> 1;
459 alpha_val = (alpha_val + val) & mask;
460 if (num_bits == 16) {
461 dst[idx++] = alpha_val >> 6;
463 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
465 if (idx >= num_coeffs)
467 } while (get_bits_left(gb)>0 && get_bits1(gb));
468 val = get_bits(gb, 4);
470 val = get_bits(gb, 11);
471 if (idx + val > num_coeffs)
472 val = num_coeffs - idx;
473 if (num_bits == 16) {
474 for (i = 0; i < val; i++)
475 dst[idx++] = alpha_val >> 6;
477 for (i = 0; i < val; i++)
478 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
481 } while (idx < num_coeffs);
485 * Decode alpha slice plane.
487 static void decode_slice_alpha(ProresContext *ctx,
488 uint16_t *dst, int dst_stride,
489 const uint8_t *buf, int buf_size,
490 int blocks_per_slice)
494 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
497 for (i = 0; i < blocks_per_slice<<2; i++)
498 ctx->bdsp.clear_block(blocks+(i<<6));
500 init_get_bits(&gb, buf, buf_size << 3);
502 if (ctx->alpha_info == 2) {
503 unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
505 unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
509 for (i = 0; i < 16; i++) {
510 memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
511 dst += dst_stride >> 1;
512 block += 16 * blocks_per_slice;
516 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
518 ProresContext *ctx = avctx->priv_data;
519 SliceContext *slice = &ctx->slices[jobnr];
520 const uint8_t *buf = slice->data;
521 AVFrame *pic = ctx->frame;
522 int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
523 int luma_stride, chroma_stride;
524 int y_data_size, u_data_size, v_data_size, a_data_size;
525 uint8_t *dest_y, *dest_u, *dest_v, *dest_a;
526 LOCAL_ALIGNED_16(int16_t, qmat_luma_scaled, [64]);
527 LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
532 //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
533 // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
536 hdr_size = buf[0] >> 3;
537 qscale = av_clip(buf[1], 1, 224);
538 qscale = qscale > 128 ? qscale - 96 << 2: qscale;
539 y_data_size = AV_RB16(buf + 2);
540 u_data_size = AV_RB16(buf + 4);
541 v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
542 if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
543 a_data_size = slice->data_size - y_data_size - u_data_size -
544 v_data_size - hdr_size;
546 if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
547 || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
548 av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
549 return AVERROR_INVALIDDATA;
554 for (i = 0; i < 64; i++) {
555 qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
556 qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
559 if (ctx->frame_type == 0) {
560 luma_stride = pic->linesize[0];
561 chroma_stride = pic->linesize[1];
563 luma_stride = pic->linesize[0] << 1;
564 chroma_stride = pic->linesize[1] << 1;
567 if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
569 log2_chroma_blocks_per_mb = 2;
572 log2_chroma_blocks_per_mb = 1;
575 dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
576 dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
577 dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
578 dest_a = pic->data[3] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
580 if (ctx->frame_type && ctx->first_field ^ ctx->frame->top_field_first) {
581 dest_y += pic->linesize[0];
582 dest_u += pic->linesize[1];
583 dest_v += pic->linesize[2];
584 dest_a += pic->linesize[3];
587 ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
588 buf, y_data_size, qmat_luma_scaled);
592 if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
593 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
594 buf + y_data_size, u_data_size,
595 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
599 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
600 buf + y_data_size + u_data_size, v_data_size,
601 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
606 size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
608 for (i = 0; i < 16; ++i)
609 for (j = 0; j < mb_max_x; ++j) {
610 *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
611 *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
615 /* decode alpha plane if available */
616 if (ctx->alpha_info && pic->data[3] && a_data_size)
617 decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
618 buf + y_data_size + u_data_size + v_data_size,
619 a_data_size, slice->mb_count);
625 static int decode_picture(AVCodecContext *avctx)
627 ProresContext *ctx = avctx->priv_data;
631 avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
633 for (i = 0; i < ctx->slice_count; i++)
634 error += ctx->slices[i].ret < 0;
637 ctx->frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM;
638 if (error < ctx->slice_count)
641 return ctx->slices[0].ret;
644 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
647 ProresContext *ctx = avctx->priv_data;
648 ThreadFrame tframe = { .f = data };
649 AVFrame *frame = data;
650 const uint8_t *buf = avpkt->data;
651 int buf_size = avpkt->size;
652 int frame_hdr_size, pic_size, ret;
654 if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
655 av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
656 return AVERROR_INVALIDDATA;
660 ctx->frame->pict_type = AV_PICTURE_TYPE_I;
661 ctx->frame->key_frame = 1;
662 ctx->first_field = 1;
667 frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
668 if (frame_hdr_size < 0)
669 return frame_hdr_size;
671 buf += frame_hdr_size;
672 buf_size -= frame_hdr_size;
674 if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
678 pic_size = decode_picture_header(avctx, buf, buf_size);
680 av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
684 if ((ret = decode_picture(avctx)) < 0) {
685 av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
690 buf_size -= pic_size;
692 if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
693 ctx->first_field = 0;
703 static int decode_init_thread_copy(AVCodecContext *avctx)
705 ProresContext *ctx = avctx->priv_data;
713 static av_cold int decode_close(AVCodecContext *avctx)
715 ProresContext *ctx = avctx->priv_data;
717 av_freep(&ctx->slices);
722 AVCodec ff_prores_decoder = {
724 .long_name = NULL_IF_CONFIG_SMALL("ProRes (iCodec Pro)"),
725 .type = AVMEDIA_TYPE_VIDEO,
726 .id = AV_CODEC_ID_PRORES,
727 .priv_data_size = sizeof(ProresContext),
729 .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
730 .close = decode_close,
731 .decode = decode_frame,
732 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,