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proresdec2.c
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1 /*
2  * Copyright (c) 2010-2011 Maxim Poliakovski
3  * Copyright (c) 2010-2011 Elvis Presley
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21 
22 /**
23  * @file
24  * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy), 'ap4h' (4444)
25  */
26 
27 //#define DEBUG
28 
29 #define LONG_BITSTREAM_READER
30 
31 #include "libavutil/internal.h"
32 #include "avcodec.h"
33 #include "get_bits.h"
34 #include "idctdsp.h"
35 #include "internal.h"
36 #include "simple_idct.h"
37 #include "proresdec.h"
38 #include "proresdata.h"
39 
40 static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
41 {
42  int i;
43  for (i = 0; i < 64; i++)
44  dst[i] = permutation[src[i]];
45 }
46 
48 {
49  ProresContext *ctx = avctx->priv_data;
50  uint8_t idct_permutation[64];
51 
52  avctx->bits_per_raw_sample = 10;
53 
54  ff_blockdsp_init(&ctx->bdsp, avctx);
55  ff_proresdsp_init(&ctx->prodsp, avctx);
56 
57  ff_init_scantable_permutation(idct_permutation,
59 
60  permute(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
61  permute(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
62 
63  return 0;
64 }
65 
67  const int data_size, AVCodecContext *avctx)
68 {
69  int hdr_size, width, height, flags;
70  int version;
71  const uint8_t *ptr;
72 
73  hdr_size = AV_RB16(buf);
74  ff_dlog(avctx, "header size %d\n", hdr_size);
75  if (hdr_size > data_size) {
76  av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
77  return AVERROR_INVALIDDATA;
78  }
79 
80  version = AV_RB16(buf + 2);
81  ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
82  if (version > 1) {
83  av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
84  return AVERROR_PATCHWELCOME;
85  }
86 
87  width = AV_RB16(buf + 8);
88  height = AV_RB16(buf + 10);
89  if (width != avctx->width || height != avctx->height) {
90  av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
91  avctx->width, avctx->height, width, height);
92  return AVERROR_PATCHWELCOME;
93  }
94 
95  ctx->frame_type = (buf[12] >> 2) & 3;
96  ctx->alpha_info = buf[17] & 0xf;
97 
98  if (ctx->alpha_info > 2) {
99  av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
100  return AVERROR_INVALIDDATA;
101  }
102  if (avctx->skip_alpha) ctx->alpha_info = 0;
103 
104  ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
105 
106  if (ctx->frame_type == 0) {
107  ctx->scan = ctx->progressive_scan; // permuted
108  } else {
109  ctx->scan = ctx->interlaced_scan; // permuted
110  ctx->frame->interlaced_frame = 1;
111  ctx->frame->top_field_first = ctx->frame_type == 1;
112  }
113 
114  if (ctx->alpha_info) {
115  avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
116  } else {
117  avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
118  }
119 
120  ptr = buf + 20;
121  flags = buf[19];
122  ff_dlog(avctx, "flags %x\n", flags);
123 
124  if (flags & 2) {
125  if(buf + data_size - ptr < 64) {
126  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
127  return AVERROR_INVALIDDATA;
128  }
129  permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
130  ptr += 64;
131  } else {
132  memset(ctx->qmat_luma, 4, 64);
133  }
134 
135  if (flags & 1) {
136  if(buf + data_size - ptr < 64) {
137  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
138  return AVERROR_INVALIDDATA;
139  }
140  permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
141  } else {
142  memset(ctx->qmat_chroma, 4, 64);
143  }
144 
145  return hdr_size;
146 }
147 
148 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
149 {
150  ProresContext *ctx = avctx->priv_data;
151  int i, hdr_size, slice_count;
152  unsigned pic_data_size;
153  int log2_slice_mb_width, log2_slice_mb_height;
154  int slice_mb_count, mb_x, mb_y;
155  const uint8_t *data_ptr, *index_ptr;
156 
157  hdr_size = buf[0] >> 3;
158  if (hdr_size < 8 || hdr_size > buf_size) {
159  av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
160  return AVERROR_INVALIDDATA;
161  }
162 
163  pic_data_size = AV_RB32(buf + 1);
164  if (pic_data_size > buf_size) {
165  av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
166  return AVERROR_INVALIDDATA;
167  }
168 
169  log2_slice_mb_width = buf[7] >> 4;
170  log2_slice_mb_height = buf[7] & 0xF;
171  if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
172  av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
173  1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
174  return AVERROR_INVALIDDATA;
175  }
176 
177  ctx->mb_width = (avctx->width + 15) >> 4;
178  if (ctx->frame_type)
179  ctx->mb_height = (avctx->height + 31) >> 5;
180  else
181  ctx->mb_height = (avctx->height + 15) >> 4;
182 
183  // QT ignores the written value
184  // slice_count = AV_RB16(buf + 5);
185  slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
186  av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
187 
188  if (ctx->slice_count != slice_count || !ctx->slices) {
189  av_freep(&ctx->slices);
190  ctx->slice_count = 0;
191  ctx->slices = av_mallocz_array(slice_count, sizeof(*ctx->slices));
192  if (!ctx->slices)
193  return AVERROR(ENOMEM);
194  ctx->slice_count = slice_count;
195  }
196 
197  if (!slice_count)
198  return AVERROR(EINVAL);
199 
200  if (hdr_size + slice_count*2 > buf_size) {
201  av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
202  return AVERROR_INVALIDDATA;
203  }
204 
205  // parse slice information
206  index_ptr = buf + hdr_size;
207  data_ptr = index_ptr + slice_count*2;
208 
209  slice_mb_count = 1 << log2_slice_mb_width;
210  mb_x = 0;
211  mb_y = 0;
212 
213  for (i = 0; i < slice_count; i++) {
214  SliceContext *slice = &ctx->slices[i];
215 
216  slice->data = data_ptr;
217  data_ptr += AV_RB16(index_ptr + i*2);
218 
219  while (ctx->mb_width - mb_x < slice_mb_count)
220  slice_mb_count >>= 1;
221 
222  slice->mb_x = mb_x;
223  slice->mb_y = mb_y;
224  slice->mb_count = slice_mb_count;
225  slice->data_size = data_ptr - slice->data;
226 
227  if (slice->data_size < 6) {
228  av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
229  return AVERROR_INVALIDDATA;
230  }
231 
232  mb_x += slice_mb_count;
233  if (mb_x == ctx->mb_width) {
234  slice_mb_count = 1 << log2_slice_mb_width;
235  mb_x = 0;
236  mb_y++;
237  }
238  if (data_ptr > buf + buf_size) {
239  av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
240  return AVERROR_INVALIDDATA;
241  }
242  }
243 
244  if (mb_x || mb_y != ctx->mb_height) {
245  av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
246  mb_y, ctx->mb_height);
247  return AVERROR_INVALIDDATA;
248  }
249 
250  return pic_data_size;
251 }
252 
253 #define DECODE_CODEWORD(val, codebook) \
254  do { \
255  unsigned int rice_order, exp_order, switch_bits; \
256  unsigned int q, buf, bits; \
257  \
258  UPDATE_CACHE(re, gb); \
259  buf = GET_CACHE(re, gb); \
260  \
261  /* number of bits to switch between rice and exp golomb */ \
262  switch_bits = codebook & 3; \
263  rice_order = codebook >> 5; \
264  exp_order = (codebook >> 2) & 7; \
265  \
266  q = 31 - av_log2(buf); \
267  \
268  if (q > switch_bits) { /* exp golomb */ \
269  bits = exp_order - switch_bits + (q<<1); \
270  val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
271  ((switch_bits + 1) << rice_order); \
272  SKIP_BITS(re, gb, bits); \
273  } else if (rice_order) { \
274  SKIP_BITS(re, gb, q+1); \
275  val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
276  SKIP_BITS(re, gb, rice_order); \
277  } else { \
278  val = q; \
279  SKIP_BITS(re, gb, q+1); \
280  } \
281  } while (0)
282 
283 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
284 
285 #define FIRST_DC_CB 0xB8
286 
287 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
288 
290  int blocks_per_slice)
291 {
292  int16_t prev_dc;
293  int code, i, sign;
294 
295  OPEN_READER(re, gb);
296 
298  prev_dc = TOSIGNED(code);
299  out[0] = prev_dc;
300 
301  out += 64; // dc coeff for the next block
302 
303  code = 5;
304  sign = 0;
305  for (i = 1; i < blocks_per_slice; i++, out += 64) {
306  DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)]);
307  if(code) sign ^= -(code & 1);
308  else sign = 0;
309  prev_dc += (((code + 1) >> 1) ^ sign) - sign;
310  out[0] = prev_dc;
311  }
312  CLOSE_READER(re, gb);
313 }
314 
315 // adaptive codebook switching lut according to previous run/level values
316 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
317 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
318 
320  int16_t *out, int blocks_per_slice)
321 {
322  ProresContext *ctx = avctx->priv_data;
323  int block_mask, sign;
324  unsigned pos, run, level;
325  int max_coeffs, i, bits_left;
326  int log2_block_count = av_log2(blocks_per_slice);
327 
328  OPEN_READER(re, gb);
329  UPDATE_CACHE(re, gb); \
330  run = 4;
331  level = 2;
332 
333  max_coeffs = 64 << log2_block_count;
334  block_mask = blocks_per_slice - 1;
335 
336  for (pos = block_mask;;) {
337  bits_left = gb->size_in_bits - re_index;
338  if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
339  break;
340 
341  DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)]);
342  pos += run + 1;
343  if (pos >= max_coeffs) {
344  av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
345  return AVERROR_INVALIDDATA;
346  }
347 
348  DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)]);
349  level += 1;
350 
351  i = pos >> log2_block_count;
352 
353  sign = SHOW_SBITS(re, gb, 1);
354  SKIP_BITS(re, gb, 1);
355  out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
356  }
357 
358  CLOSE_READER(re, gb);
359  return 0;
360 }
361 
363  uint16_t *dst, int dst_stride,
364  const uint8_t *buf, unsigned buf_size,
365  const int16_t *qmat)
366 {
367  ProresContext *ctx = avctx->priv_data;
368  LOCAL_ALIGNED_16(int16_t, blocks, [8*4*64]);
369  int16_t *block;
370  GetBitContext gb;
371  int i, blocks_per_slice = slice->mb_count<<2;
372  int ret;
373 
374  for (i = 0; i < blocks_per_slice; i++)
375  ctx->bdsp.clear_block(blocks+(i<<6));
376 
377  init_get_bits(&gb, buf, buf_size << 3);
378 
379  decode_dc_coeffs(&gb, blocks, blocks_per_slice);
380  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
381  return ret;
382 
383  block = blocks;
384  for (i = 0; i < slice->mb_count; i++) {
385  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
386  ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
387  ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
388  ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
389  block += 4*64;
390  dst += 16;
391  }
392  return 0;
393 }
394 
396  uint16_t *dst, int dst_stride,
397  const uint8_t *buf, unsigned buf_size,
398  const int16_t *qmat, int log2_blocks_per_mb)
399 {
400  ProresContext *ctx = avctx->priv_data;
401  LOCAL_ALIGNED_16(int16_t, blocks, [8*4*64]);
402  int16_t *block;
403  GetBitContext gb;
404  int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
405  int ret;
406 
407  for (i = 0; i < blocks_per_slice; i++)
408  ctx->bdsp.clear_block(blocks+(i<<6));
409 
410  init_get_bits(&gb, buf, buf_size << 3);
411 
412  decode_dc_coeffs(&gb, blocks, blocks_per_slice);
413  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
414  return ret;
415 
416  block = blocks;
417  for (i = 0; i < slice->mb_count; i++) {
418  for (j = 0; j < log2_blocks_per_mb; j++) {
419  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
420  ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
421  block += 2*64;
422  dst += 8;
423  }
424  }
425  return 0;
426 }
427 
428 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
429  const int num_bits)
430 {
431  const int mask = (1 << num_bits) - 1;
432  int i, idx, val, alpha_val;
433 
434  idx = 0;
435  alpha_val = mask;
436  do {
437  do {
438  if (get_bits1(gb)) {
439  val = get_bits(gb, num_bits);
440  } else {
441  int sign;
442  val = get_bits(gb, num_bits == 16 ? 7 : 4);
443  sign = val & 1;
444  val = (val + 2) >> 1;
445  if (sign)
446  val = -val;
447  }
448  alpha_val = (alpha_val + val) & mask;
449  if (num_bits == 16) {
450  dst[idx++] = alpha_val >> 6;
451  } else {
452  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
453  }
454  if (idx >= num_coeffs)
455  break;
456  } while (get_bits_left(gb)>0 && get_bits1(gb));
457  val = get_bits(gb, 4);
458  if (!val)
459  val = get_bits(gb, 11);
460  if (idx + val > num_coeffs)
461  val = num_coeffs - idx;
462  if (num_bits == 16) {
463  for (i = 0; i < val; i++)
464  dst[idx++] = alpha_val >> 6;
465  } else {
466  for (i = 0; i < val; i++)
467  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
468 
469  }
470  } while (idx < num_coeffs);
471 }
472 
473 /**
474  * Decode alpha slice plane.
475  */
477  uint16_t *dst, int dst_stride,
478  const uint8_t *buf, int buf_size,
479  int blocks_per_slice)
480 {
481  GetBitContext gb;
482  int i;
483  LOCAL_ALIGNED_16(int16_t, blocks, [8*4*64]);
484  int16_t *block;
485 
486  for (i = 0; i < blocks_per_slice<<2; i++)
487  ctx->bdsp.clear_block(blocks+(i<<6));
488 
489  init_get_bits(&gb, buf, buf_size << 3);
490 
491  if (ctx->alpha_info == 2) {
492  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
493  } else {
494  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
495  }
496 
497  block = blocks;
498  for (i = 0; i < 16; i++) {
499  memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
500  dst += dst_stride >> 1;
501  block += 16 * blocks_per_slice;
502  }
503 }
504 
505 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
506 {
507  ProresContext *ctx = avctx->priv_data;
508  SliceContext *slice = &ctx->slices[jobnr];
509  const uint8_t *buf = slice->data;
510  AVFrame *pic = ctx->frame;
511  int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
512  int luma_stride, chroma_stride;
513  int y_data_size, u_data_size, v_data_size, a_data_size;
514  uint8_t *dest_y, *dest_u, *dest_v, *dest_a;
515  int16_t qmat_luma_scaled[64];
516  int16_t qmat_chroma_scaled[64];
517  int mb_x_shift;
518  int ret;
519 
520  slice->ret = -1;
521  //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
522  // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
523 
524  // slice header
525  hdr_size = buf[0] >> 3;
526  qscale = av_clip(buf[1], 1, 224);
527  qscale = qscale > 128 ? qscale - 96 << 2: qscale;
528  y_data_size = AV_RB16(buf + 2);
529  u_data_size = AV_RB16(buf + 4);
530  v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
531  if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
532  a_data_size = slice->data_size - y_data_size - u_data_size -
533  v_data_size - hdr_size;
534 
535  if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
536  || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
537  av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
538  return AVERROR_INVALIDDATA;
539  }
540 
541  buf += hdr_size;
542 
543  for (i = 0; i < 64; i++) {
544  qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
545  qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
546  }
547 
548  if (ctx->frame_type == 0) {
549  luma_stride = pic->linesize[0];
550  chroma_stride = pic->linesize[1];
551  } else {
552  luma_stride = pic->linesize[0] << 1;
553  chroma_stride = pic->linesize[1] << 1;
554  }
555 
556  if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
557  mb_x_shift = 5;
558  log2_chroma_blocks_per_mb = 2;
559  } else {
560  mb_x_shift = 4;
561  log2_chroma_blocks_per_mb = 1;
562  }
563 
564  dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
565  dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
566  dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
567  dest_a = pic->data[3] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
568 
569  if (ctx->frame_type && ctx->first_field ^ ctx->frame->top_field_first) {
570  dest_y += pic->linesize[0];
571  dest_u += pic->linesize[1];
572  dest_v += pic->linesize[2];
573  dest_a += pic->linesize[3];
574  }
575 
576  ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
577  buf, y_data_size, qmat_luma_scaled);
578  if (ret < 0)
579  return ret;
580 
581  if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
582  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
583  buf + y_data_size, u_data_size,
584  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
585  if (ret < 0)
586  return ret;
587 
588  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
589  buf + y_data_size + u_data_size, v_data_size,
590  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
591  if (ret < 0)
592  return ret;
593  }
594  else {
595  size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
596  for (size_t i = 0; i < 16; ++i)
597  for (size_t j = 0; j < mb_max_x; ++j) {
598  *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
599  *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
600  }
601  }
602 
603  /* decode alpha plane if available */
604  if (ctx->alpha_info && pic->data[3] && a_data_size)
605  decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
606  buf + y_data_size + u_data_size + v_data_size,
607  a_data_size, slice->mb_count);
608 
609  slice->ret = 0;
610  return 0;
611 }
612 
613 static int decode_picture(AVCodecContext *avctx)
614 {
615  ProresContext *ctx = avctx->priv_data;
616  int i;
617 
618  avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
619 
620  for (i = 0; i < ctx->slice_count; i++)
621  if (ctx->slices[i].ret < 0)
622  return ctx->slices[i].ret;
623 
624  return 0;
625 }
626 
627 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
628  AVPacket *avpkt)
629 {
630  ProresContext *ctx = avctx->priv_data;
631  AVFrame *frame = data;
632  const uint8_t *buf = avpkt->data;
633  int buf_size = avpkt->size;
634  int frame_hdr_size, pic_size, ret;
635 
636  if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
637  av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
638  return AVERROR_INVALIDDATA;
639  }
640 
641  ctx->frame = frame;
643  ctx->frame->key_frame = 1;
644  ctx->first_field = 1;
645 
646  buf += 8;
647  buf_size -= 8;
648 
649  frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
650  if (frame_hdr_size < 0)
651  return frame_hdr_size;
652 
653  buf += frame_hdr_size;
654  buf_size -= frame_hdr_size;
655 
656  if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
657  return ret;
658 
660  pic_size = decode_picture_header(avctx, buf, buf_size);
661  if (pic_size < 0) {
662  av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
663  return pic_size;
664  }
665 
666  if ((ret = decode_picture(avctx)) < 0) {
667  av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
668  return ret;
669  }
670 
671  buf += pic_size;
672  buf_size -= pic_size;
673 
674  if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
675  ctx->first_field = 0;
676  goto decode_picture;
677  }
678 
679  *got_frame = 1;
680 
681  return avpkt->size;
682 }
683 
685 {
686  ProresContext *ctx = avctx->priv_data;
687 
688  av_freep(&ctx->slices);
689 
690  return 0;
691 }
692 
694  .name = "prores",
695  .long_name = NULL_IF_CONFIG_SMALL("ProRes"),
696  .type = AVMEDIA_TYPE_VIDEO,
697  .id = AV_CODEC_ID_PRORES,
698  .priv_data_size = sizeof(ProresContext),
699  .init = decode_init,
700  .close = decode_close,
701  .decode = decode_frame,
703 };
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
#define DECODE_CODEWORD(val, codebook)
Definition: proresdec2.c:253
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
int first_field
Definition: proresdec.h:51
void(* clear_block)(int16_t *block)
Definition: blockdsp.h:35
float re
Definition: fft.c:82
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:377
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:247
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
Definition: proresdec2.c:505
static int decode_slice_luma(AVCodecContext *avctx, SliceContext *slice, uint16_t *dst, int dst_stride, const uint8_t *buf, unsigned buf_size, const int16_t *qmat)
Definition: proresdec2.c:362
int size
Definition: avcodec.h:1591
uint8_t qmat_chroma[64]
dequantization matrix for chroma
Definition: proresdec.h:43
av_cold void ff_proresdsp_init(ProresDSPContext *dsp, AVCodecContext *avctx)
Definition: proresdsp.c:58
int av_log2(unsigned v)
Definition: intmath.c:26
const uint8_t * scan
Definition: proresdec.h:50
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1887
BlockDSPContext bdsp
Definition: proresdec.h:38
unsigned mb_height
height of the current picture in mb
Definition: proresdec.h:47
int version
Definition: avisynth_c.h:766
int idct_permutation_type
Definition: proresdsp.h:32
uint8_t run
Definition: svq3.c:205
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3060
unsigned mb_y
Definition: proresdec.h:31
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:87
AVCodec.
Definition: avcodec.h:3573
AVFrame * frame
Definition: proresdec.h:40
static int16_t block[64]
Definition: dct.c:113
unsigned data_size
Definition: proresdec.h:33
uint8_t
#define av_cold
Definition: attributes.h:82
static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
Definition: proresdec2.c:148
static av_cold int decode_init(AVCodecContext *avctx)
Definition: proresdec2.c:47
unsigned mb_count
Definition: proresdec.h:32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
static AVFrame * frame
AVCodec ff_prores_decoder
Definition: proresdec2.c:693
#define height
uint8_t * data
Definition: avcodec.h:1590
#define ff_dlog(a,...)
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:318
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:860
#define av_log(a,...)
int slice_count
number of slices in the current picture
Definition: proresdec.h:45
SliceContext * slices
Definition: proresdec.h:44
#define U(x)
Definition: vp56_arith.h:37
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:568
unsigned mb_width
width of the current picture in mb
Definition: proresdec.h:46
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:160
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
ProresDSPContext prodsp
Definition: proresdec.h:39
static const uint16_t mask[17]
Definition: lzw.c:38
const uint8_t * data
Definition: proresdec.h:29
#define AVERROR(e)
Definition: error.h:43
int skip_alpha
Skip processing alpha if supported by codec.
Definition: avcodec.h:3437
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
const char * arg
Definition: jacosubdec.c:66
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1754
const char * name
Name of the codec implementation.
Definition: avcodec.h:3580
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:346
#define CLOSE_READER(name, gb)
Definition: get_bits.h:131
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:226
unsigned mb_x
Definition: proresdec.h:30
#define SKIP_BITS(name, gb, num)
Definition: get_bits.h:175
common internal API header
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:258
#define FFMIN(a, b)
Definition: common.h:96
av_cold void ff_init_scantable_permutation(uint8_t *idct_permutation, enum idct_permutation_type perm_type)
Definition: idctdsp.c:50
#define width
int width
picture width / height.
Definition: avcodec.h:1846
uint8_t idct_permutation[64]
Definition: proresdsp.h:33
int size_in_bits
Definition: get_bits.h:58
AVFormatContext * ctx
Definition: movenc.c:48
static const uint8_t lev_to_cb[10]
Definition: proresdec2.c:317
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:378
uint8_t interlaced_scan[64]
Definition: proresdec.h:49
#define src
Definition: vp9dsp.c:530
#define SHOW_UBITS(name, gb, num)
Definition: get_bits.h:193
int alpha_info
Definition: proresdec.h:52
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: avcodec.h:1025
const uint8_t ff_prores_interlaced_scan[64]
Definition: proresdata.c:36
Libavcodec external API header.
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:58
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
main external API structure.
Definition: avcodec.h:1659
void(* idct_put)(uint16_t *out, int linesize, int16_t *block, const int16_t *qmat)
Definition: proresdsp.h:34
const uint8_t ff_prores_progressive_scan[64]
Definition: proresdata.c:25
static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
Definition: proresdec2.c:40
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: utils.c:928
#define OPEN_READER(name, gb)
Definition: get_bits.h:120
void * buf
Definition: avisynth_c.h:690
static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb, int16_t *out, int blocks_per_slice)
Definition: proresdec2.c:319
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:299
static int decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice, uint16_t *dst, int dst_stride, const uint8_t *buf, unsigned buf_size, const int16_t *qmat, int log2_blocks_per_mb)
Definition: proresdec2.c:395
static const uint8_t run_to_cb[16]
Definition: proresdec2.c:316
uint8_t progressive_scan[64]
Definition: proresdec.h:48
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:406
#define TOSIGNED(x)
Definition: proresdec2.c:283
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: proresdec2.c:627
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:344
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
uint8_t level
Definition: svq3.c:206
static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs, const int num_bits)
Definition: proresdec2.c:428
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:752
#define SHOW_SBITS(name, gb, num)
Definition: get_bits.h:194
#define FIRST_DC_CB
Definition: proresdec2.c:285
common internal api header.
static av_always_inline void decode_dc_coeffs(GetBitContext *gb, int16_t *out, int blocks_per_slice)
Definition: proresdec2.c:289
static const uint8_t dc_codebook[7]
Definition: proresdec2.c:287
void * priv_data
Definition: avcodec.h:1701
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:323
simple idct header.
int(* execute2)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count)
The codec may call this to execute several independent things.
Definition: avcodec.h:3150
static void decode_slice_alpha(ProresContext *ctx, uint16_t *dst, int dst_stride, const uint8_t *buf, int buf_size, int blocks_per_slice)
Decode alpha slice plane.
Definition: proresdec2.c:476
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:253
static int decode_frame_header(ProresContext *ctx, const uint8_t *buf, const int data_size, AVCodecContext *avctx)
Definition: proresdec2.c:66
static av_cold int decode_close(AVCodecContext *avctx)
Definition: proresdec2.c:684
FILE * out
Definition: movenc.c:54
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:121
#define av_freep(p)
#define av_always_inline
Definition: attributes.h:39
uint8_t qmat_luma[64]
dequantization matrix for luma
Definition: proresdec.h:42
int frame_type
0 = progressive, 1 = tff, 2 = bff
Definition: proresdec.h:41
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
This structure stores compressed data.
Definition: avcodec.h:1567
static int decode_picture(AVCodecContext *avctx)
Definition: proresdec2.c:613
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:958