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"
37 #include "simple_idct.h"
38 #include "proresdec.h"
39 #include "proresdata.h"
42 static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
45 for (i = 0; i < 64; i++)
46 dst[i] = permutation[src[i]];
49 static av_cold int decode_init(AVCodecContext *avctx)
52 ProresContext *ctx = avctx->priv_data;
53 uint8_t idct_permutation[64];
55 avctx->bits_per_raw_sample = 10;
57 switch (avctx->codec_tag) {
58 case MKTAG('a','p','c','o'):
59 avctx->profile = FF_PROFILE_PRORES_PROXY;
61 case MKTAG('a','p','c','s'):
62 avctx->profile = FF_PROFILE_PRORES_LT;
64 case MKTAG('a','p','c','n'):
65 avctx->profile = FF_PROFILE_PRORES_STANDARD;
67 case MKTAG('a','p','c','h'):
68 avctx->profile = FF_PROFILE_PRORES_HQ;
70 case MKTAG('a','p','4','h'):
71 avctx->profile = FF_PROFILE_PRORES_4444;
73 case MKTAG('a','p','4','x'):
74 avctx->profile = FF_PROFILE_PRORES_XQ;
77 avctx->profile = FF_PROFILE_UNKNOWN;
78 av_log(avctx, AV_LOG_WARNING, "Unknown prores profile %d\n", avctx->codec_tag);
81 ff_blockdsp_init(&ctx->bdsp, avctx);
82 ret = ff_proresdsp_init(&ctx->prodsp, avctx);
84 av_log(avctx, AV_LOG_ERROR, "Fail to init proresdsp for bits per raw sample %d\n", avctx->bits_per_raw_sample);
88 ff_init_scantable_permutation(idct_permutation,
89 ctx->prodsp.idct_permutation_type);
91 permute(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
92 permute(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
97 static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
98 const int data_size, AVCodecContext *avctx)
100 int hdr_size, width, height, flags;
104 hdr_size = AV_RB16(buf);
105 ff_dlog(avctx, "header size %d\n", hdr_size);
106 if (hdr_size > data_size) {
107 av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
108 return AVERROR_INVALIDDATA;
111 version = AV_RB16(buf + 2);
112 ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
114 av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
115 return AVERROR_PATCHWELCOME;
118 width = AV_RB16(buf + 8);
119 height = AV_RB16(buf + 10);
120 if (width != avctx->width || height != avctx->height) {
121 av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
122 avctx->width, avctx->height, width, height);
123 return AVERROR_PATCHWELCOME;
126 ctx->frame_type = (buf[12] >> 2) & 3;
127 ctx->alpha_info = buf[17] & 0xf;
129 if (ctx->alpha_info > 2) {
130 av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
131 return AVERROR_INVALIDDATA;
133 if (avctx->skip_alpha) ctx->alpha_info = 0;
135 ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
137 if (ctx->frame_type == 0) {
138 ctx->scan = ctx->progressive_scan; // permuted
140 ctx->scan = ctx->interlaced_scan; // permuted
141 ctx->frame->interlaced_frame = 1;
142 ctx->frame->top_field_first = ctx->frame_type == 1;
145 if (ctx->alpha_info) {
146 avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
148 avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
151 avctx->color_primaries = buf[14];
152 avctx->color_trc = buf[15];
153 avctx->colorspace = buf[16];
154 avctx->color_range = AVCOL_RANGE_MPEG;
158 ff_dlog(avctx, "flags %x\n", flags);
161 if(buf + data_size - ptr < 64) {
162 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
163 return AVERROR_INVALIDDATA;
165 permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
168 memset(ctx->qmat_luma, 4, 64);
172 if(buf + data_size - ptr < 64) {
173 av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
174 return AVERROR_INVALIDDATA;
176 permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
178 memset(ctx->qmat_chroma, 4, 64);
184 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
186 ProresContext *ctx = avctx->priv_data;
187 int i, hdr_size, slice_count;
188 unsigned pic_data_size;
189 int log2_slice_mb_width, log2_slice_mb_height;
190 int slice_mb_count, mb_x, mb_y;
191 const uint8_t *data_ptr, *index_ptr;
193 hdr_size = buf[0] >> 3;
194 if (hdr_size < 8 || hdr_size > buf_size) {
195 av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
196 return AVERROR_INVALIDDATA;
199 pic_data_size = AV_RB32(buf + 1);
200 if (pic_data_size > buf_size) {
201 av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
202 return AVERROR_INVALIDDATA;
205 log2_slice_mb_width = buf[7] >> 4;
206 log2_slice_mb_height = buf[7] & 0xF;
207 if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
208 av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
209 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
210 return AVERROR_INVALIDDATA;
213 ctx->mb_width = (avctx->width + 15) >> 4;
215 ctx->mb_height = (avctx->height + 31) >> 5;
217 ctx->mb_height = (avctx->height + 15) >> 4;
219 // QT ignores the written value
220 // slice_count = AV_RB16(buf + 5);
221 slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
222 av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
224 if (ctx->slice_count != slice_count || !ctx->slices) {
225 av_freep(&ctx->slices);
226 ctx->slice_count = 0;
227 ctx->slices = av_mallocz_array(slice_count, sizeof(*ctx->slices));
229 return AVERROR(ENOMEM);
230 ctx->slice_count = slice_count;
234 return AVERROR(EINVAL);
236 if (hdr_size + slice_count*2 > buf_size) {
237 av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
238 return AVERROR_INVALIDDATA;
241 // parse slice information
242 index_ptr = buf + hdr_size;
243 data_ptr = index_ptr + slice_count*2;
245 slice_mb_count = 1 << log2_slice_mb_width;
249 for (i = 0; i < slice_count; i++) {
250 SliceContext *slice = &ctx->slices[i];
252 slice->data = data_ptr;
253 data_ptr += AV_RB16(index_ptr + i*2);
255 while (ctx->mb_width - mb_x < slice_mb_count)
256 slice_mb_count >>= 1;
260 slice->mb_count = slice_mb_count;
261 slice->data_size = data_ptr - slice->data;
263 if (slice->data_size < 6) {
264 av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
265 return AVERROR_INVALIDDATA;
268 mb_x += slice_mb_count;
269 if (mb_x == ctx->mb_width) {
270 slice_mb_count = 1 << log2_slice_mb_width;
274 if (data_ptr > buf + buf_size) {
275 av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
276 return AVERROR_INVALIDDATA;
280 if (mb_x || mb_y != ctx->mb_height) {
281 av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
282 mb_y, ctx->mb_height);
283 return AVERROR_INVALIDDATA;
286 return pic_data_size;
289 #define DECODE_CODEWORD(val, codebook, SKIP) \
291 unsigned int rice_order, exp_order, switch_bits; \
292 unsigned int q, buf, bits; \
294 UPDATE_CACHE(re, gb); \
295 buf = GET_CACHE(re, gb); \
297 /* number of bits to switch between rice and exp golomb */ \
298 switch_bits = codebook & 3; \
299 rice_order = codebook >> 5; \
300 exp_order = (codebook >> 2) & 7; \
302 q = 31 - av_log2(buf); \
304 if (q > switch_bits) { /* exp golomb */ \
305 bits = exp_order - switch_bits + (q<<1); \
306 if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
307 return AVERROR_INVALIDDATA; \
308 val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
309 ((switch_bits + 1) << rice_order); \
310 SKIP(re, gb, bits); \
311 } else if (rice_order) { \
312 SKIP_BITS(re, gb, q+1); \
313 val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
314 SKIP(re, gb, rice_order); \
321 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
323 #define FIRST_DC_CB 0xB8
325 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
327 static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out,
328 int blocks_per_slice)
335 DECODE_CODEWORD(code, FIRST_DC_CB, LAST_SKIP_BITS);
336 prev_dc = TOSIGNED(code);
339 out += 64; // dc coeff for the next block
343 for (i = 1; i < blocks_per_slice; i++, out += 64) {
344 DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)], LAST_SKIP_BITS);
345 if(code) sign ^= -(code & 1);
347 prev_dc += (((code + 1) >> 1) ^ sign) - sign;
350 CLOSE_READER(re, gb);
354 // adaptive codebook switching lut according to previous run/level values
355 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
356 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
358 static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
359 int16_t *out, int blocks_per_slice)
361 ProresContext *ctx = avctx->priv_data;
362 int block_mask, sign;
363 unsigned pos, run, level;
364 int max_coeffs, i, bits_left;
365 int log2_block_count = av_log2(blocks_per_slice);
368 UPDATE_CACHE(re, gb); \
372 max_coeffs = 64 << log2_block_count;
373 block_mask = blocks_per_slice - 1;
375 for (pos = block_mask;;) {
376 bits_left = gb->size_in_bits - re_index;
377 if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
380 DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)], LAST_SKIP_BITS);
382 if (pos >= max_coeffs) {
383 av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
384 return AVERROR_INVALIDDATA;
387 DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
390 i = pos >> log2_block_count;
392 sign = SHOW_SBITS(re, gb, 1);
393 SKIP_BITS(re, gb, 1);
394 out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
397 CLOSE_READER(re, gb);
401 static int decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
402 uint16_t *dst, int dst_stride,
403 const uint8_t *buf, unsigned buf_size,
406 ProresContext *ctx = avctx->priv_data;
407 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
410 int i, blocks_per_slice = slice->mb_count<<2;
413 for (i = 0; i < blocks_per_slice; i++)
414 ctx->bdsp.clear_block(blocks+(i<<6));
416 init_get_bits(&gb, buf, buf_size << 3);
418 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
420 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
424 for (i = 0; i < slice->mb_count; i++) {
425 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
426 ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
427 ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
428 ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
435 static int decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
436 uint16_t *dst, int dst_stride,
437 const uint8_t *buf, unsigned buf_size,
438 const int16_t *qmat, int log2_blocks_per_mb)
440 ProresContext *ctx = avctx->priv_data;
441 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
444 int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
447 for (i = 0; i < blocks_per_slice; i++)
448 ctx->bdsp.clear_block(blocks+(i<<6));
450 init_get_bits(&gb, buf, buf_size << 3);
452 if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
454 if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
458 for (i = 0; i < slice->mb_count; i++) {
459 for (j = 0; j < log2_blocks_per_mb; j++) {
460 ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
461 ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
469 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
472 const int mask = (1 << num_bits) - 1;
473 int i, idx, val, alpha_val;
480 val = get_bits(gb, num_bits);
483 val = get_bits(gb, num_bits == 16 ? 7 : 4);
485 val = (val + 2) >> 1;
489 alpha_val = (alpha_val + val) & mask;
490 if (num_bits == 16) {
491 dst[idx++] = alpha_val >> 6;
493 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
495 if (idx >= num_coeffs)
497 } while (get_bits_left(gb)>0 && get_bits1(gb));
498 val = get_bits(gb, 4);
500 val = get_bits(gb, 11);
501 if (idx + val > num_coeffs)
502 val = num_coeffs - idx;
503 if (num_bits == 16) {
504 for (i = 0; i < val; i++)
505 dst[idx++] = alpha_val >> 6;
507 for (i = 0; i < val; i++)
508 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
511 } while (idx < num_coeffs);
515 * Decode alpha slice plane.
517 static void decode_slice_alpha(ProresContext *ctx,
518 uint16_t *dst, int dst_stride,
519 const uint8_t *buf, int buf_size,
520 int blocks_per_slice)
524 LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
527 for (i = 0; i < blocks_per_slice<<2; i++)
528 ctx->bdsp.clear_block(blocks+(i<<6));
530 init_get_bits(&gb, buf, buf_size << 3);
532 if (ctx->alpha_info == 2) {
533 unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
535 unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
539 for (i = 0; i < 16; i++) {
540 memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
541 dst += dst_stride >> 1;
542 block += 16 * blocks_per_slice;
546 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
548 ProresContext *ctx = avctx->priv_data;
549 SliceContext *slice = &ctx->slices[jobnr];
550 const uint8_t *buf = slice->data;
551 AVFrame *pic = ctx->frame;
552 int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
553 int luma_stride, chroma_stride;
554 int y_data_size, u_data_size, v_data_size, a_data_size;
555 uint8_t *dest_y, *dest_u, *dest_v, *dest_a;
556 LOCAL_ALIGNED_16(int16_t, qmat_luma_scaled, [64]);
557 LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
562 //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
563 // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
566 hdr_size = buf[0] >> 3;
567 qscale = av_clip(buf[1], 1, 224);
568 qscale = qscale > 128 ? qscale - 96 << 2: qscale;
569 y_data_size = AV_RB16(buf + 2);
570 u_data_size = AV_RB16(buf + 4);
571 v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
572 if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
573 a_data_size = slice->data_size - y_data_size - u_data_size -
574 v_data_size - hdr_size;
576 if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
577 || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
578 av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
579 return AVERROR_INVALIDDATA;
584 for (i = 0; i < 64; i++) {
585 qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
586 qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
589 if (ctx->frame_type == 0) {
590 luma_stride = pic->linesize[0];
591 chroma_stride = pic->linesize[1];
593 luma_stride = pic->linesize[0] << 1;
594 chroma_stride = pic->linesize[1] << 1;
597 if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
599 log2_chroma_blocks_per_mb = 2;
602 log2_chroma_blocks_per_mb = 1;
605 dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
606 dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
607 dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
608 dest_a = pic->data[3] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
610 if (ctx->frame_type && ctx->first_field ^ ctx->frame->top_field_first) {
611 dest_y += pic->linesize[0];
612 dest_u += pic->linesize[1];
613 dest_v += pic->linesize[2];
614 dest_a += pic->linesize[3];
617 ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
618 buf, y_data_size, qmat_luma_scaled);
622 if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
623 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
624 buf + y_data_size, u_data_size,
625 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
629 ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
630 buf + y_data_size + u_data_size, v_data_size,
631 qmat_chroma_scaled, log2_chroma_blocks_per_mb);
636 size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
638 for (i = 0; i < 16; ++i)
639 for (j = 0; j < mb_max_x; ++j) {
640 *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
641 *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
645 /* decode alpha plane if available */
646 if (ctx->alpha_info && pic->data[3] && a_data_size)
647 decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
648 buf + y_data_size + u_data_size + v_data_size,
649 a_data_size, slice->mb_count);
655 static int decode_picture(AVCodecContext *avctx)
657 ProresContext *ctx = avctx->priv_data;
661 avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
663 for (i = 0; i < ctx->slice_count; i++)
664 error += ctx->slices[i].ret < 0;
667 ctx->frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM;
668 if (error < ctx->slice_count)
671 return ctx->slices[0].ret;
674 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
677 ProresContext *ctx = avctx->priv_data;
678 ThreadFrame tframe = { .f = data };
679 AVFrame *frame = data;
680 const uint8_t *buf = avpkt->data;
681 int buf_size = avpkt->size;
682 int frame_hdr_size, pic_size, ret;
684 if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
685 av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
686 return AVERROR_INVALIDDATA;
690 ctx->frame->pict_type = AV_PICTURE_TYPE_I;
691 ctx->frame->key_frame = 1;
692 ctx->first_field = 1;
697 frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
698 if (frame_hdr_size < 0)
699 return frame_hdr_size;
701 buf += frame_hdr_size;
702 buf_size -= frame_hdr_size;
704 if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
708 pic_size = decode_picture_header(avctx, buf, buf_size);
710 av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
714 if ((ret = decode_picture(avctx)) < 0) {
715 av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
720 buf_size -= pic_size;
722 if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
723 ctx->first_field = 0;
733 static int decode_init_thread_copy(AVCodecContext *avctx)
735 ProresContext *ctx = avctx->priv_data;
743 static av_cold int decode_close(AVCodecContext *avctx)
745 ProresContext *ctx = avctx->priv_data;
747 av_freep(&ctx->slices);
752 AVCodec ff_prores_decoder = {
754 .long_name = NULL_IF_CONFIG_SMALL("ProRes (iCodec Pro)"),
755 .type = AVMEDIA_TYPE_VIDEO,
756 .id = AV_CODEC_ID_PRORES,
757 .priv_data_size = sizeof(ProresContext),
759 .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
760 .close = decode_close,
761 .decode = decode_frame,
762 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
763 .profiles = NULL_IF_CONFIG_SMALL(ff_prores_profiles),