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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 #include "thread.h"
40 
41 static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
42 {
43  int i;
44  for (i = 0; i < 64; i++)
45  dst[i] = permutation[src[i]];
46 }
47 
49 {
50  ProresContext *ctx = avctx->priv_data;
51  uint8_t idct_permutation[64];
52 
53  avctx->bits_per_raw_sample = 10;
54 
55  ff_blockdsp_init(&ctx->bdsp, avctx);
56  ff_proresdsp_init(&ctx->prodsp, avctx);
57 
58  ff_init_scantable_permutation(idct_permutation,
60 
61  permute(ctx->progressive_scan, ff_prores_progressive_scan, idct_permutation);
62  permute(ctx->interlaced_scan, ff_prores_interlaced_scan, idct_permutation);
63 
64  return 0;
65 }
66 
68  const int data_size, AVCodecContext *avctx)
69 {
70  int hdr_size, width, height, flags;
71  int version;
72  const uint8_t *ptr;
73 
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;
79  }
80 
81  version = AV_RB16(buf + 2);
82  ff_dlog(avctx, "%.4s version %d\n", buf+4, version);
83  if (version > 1) {
84  av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
85  return AVERROR_PATCHWELCOME;
86  }
87 
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;
94  }
95 
96  ctx->frame_type = (buf[12] >> 2) & 3;
97  ctx->alpha_info = buf[17] & 0xf;
98 
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;
102  }
103  if (avctx->skip_alpha) ctx->alpha_info = 0;
104 
105  ff_dlog(avctx, "frame type %d\n", ctx->frame_type);
106 
107  if (ctx->frame_type == 0) {
108  ctx->scan = ctx->progressive_scan; // permuted
109  } else {
110  ctx->scan = ctx->interlaced_scan; // permuted
111  ctx->frame->interlaced_frame = 1;
112  ctx->frame->top_field_first = ctx->frame_type == 1;
113  }
114 
115  if (ctx->alpha_info) {
116  avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
117  } else {
118  avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
119  }
120 
121  avctx->color_primaries = buf[14];
122  avctx->color_trc = buf[15];
123  avctx->colorspace = buf[16];
124  avctx->color_range = AVCOL_RANGE_MPEG;
125 
126  ptr = buf + 20;
127  flags = buf[19];
128  ff_dlog(avctx, "flags %x\n", flags);
129 
130  if (flags & 2) {
131  if(buf + data_size - ptr < 64) {
132  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
133  return AVERROR_INVALIDDATA;
134  }
135  permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
136  ptr += 64;
137  } else {
138  memset(ctx->qmat_luma, 4, 64);
139  }
140 
141  if (flags & 1) {
142  if(buf + data_size - ptr < 64) {
143  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
144  return AVERROR_INVALIDDATA;
145  }
146  permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
147  } else {
148  memset(ctx->qmat_chroma, 4, 64);
149  }
150 
151  return hdr_size;
152 }
153 
154 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
155 {
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;
162 
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;
167  }
168 
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;
173  }
174 
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;
181  }
182 
183  ctx->mb_width = (avctx->width + 15) >> 4;
184  if (ctx->frame_type)
185  ctx->mb_height = (avctx->height + 31) >> 5;
186  else
187  ctx->mb_height = (avctx->height + 15) >> 4;
188 
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));
193 
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));
198  if (!ctx->slices)
199  return AVERROR(ENOMEM);
200  ctx->slice_count = slice_count;
201  }
202 
203  if (!slice_count)
204  return AVERROR(EINVAL);
205 
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;
209  }
210 
211  // parse slice information
212  index_ptr = buf + hdr_size;
213  data_ptr = index_ptr + slice_count*2;
214 
215  slice_mb_count = 1 << log2_slice_mb_width;
216  mb_x = 0;
217  mb_y = 0;
218 
219  for (i = 0; i < slice_count; i++) {
220  SliceContext *slice = &ctx->slices[i];
221 
222  slice->data = data_ptr;
223  data_ptr += AV_RB16(index_ptr + i*2);
224 
225  while (ctx->mb_width - mb_x < slice_mb_count)
226  slice_mb_count >>= 1;
227 
228  slice->mb_x = mb_x;
229  slice->mb_y = mb_y;
230  slice->mb_count = slice_mb_count;
231  slice->data_size = data_ptr - slice->data;
232 
233  if (slice->data_size < 6) {
234  av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
235  return AVERROR_INVALIDDATA;
236  }
237 
238  mb_x += slice_mb_count;
239  if (mb_x == ctx->mb_width) {
240  slice_mb_count = 1 << log2_slice_mb_width;
241  mb_x = 0;
242  mb_y++;
243  }
244  if (data_ptr > buf + buf_size) {
245  av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
246  return AVERROR_INVALIDDATA;
247  }
248  }
249 
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;
254  }
255 
256  return pic_data_size;
257 }
258 
259 #define DECODE_CODEWORD(val, codebook, SKIP) \
260  do { \
261  unsigned int rice_order, exp_order, switch_bits; \
262  unsigned int q, buf, bits; \
263  \
264  UPDATE_CACHE(re, gb); \
265  buf = GET_CACHE(re, gb); \
266  \
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; \
271  \
272  q = 31 - av_log2(buf); \
273  \
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); \
285  } else { \
286  val = q; \
287  SKIP(re, gb, q+1); \
288  } \
289  } while (0)
290 
291 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
292 
293 #define FIRST_DC_CB 0xB8
294 
295 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
296 
298  int blocks_per_slice)
299 {
300  int16_t prev_dc;
301  int code, i, sign;
302 
303  OPEN_READER(re, gb);
304 
306  prev_dc = TOSIGNED(code);
307  out[0] = prev_dc;
308 
309  out += 64; // dc coeff for the next block
310 
311  code = 5;
312  sign = 0;
313  for (i = 1; i < blocks_per_slice; i++, out += 64) {
315  if(code) sign ^= -(code & 1);
316  else sign = 0;
317  prev_dc += (((code + 1) >> 1) ^ sign) - sign;
318  out[0] = prev_dc;
319  }
320  CLOSE_READER(re, gb);
321  return 0;
322 }
323 
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 };
327 
329  int16_t *out, int blocks_per_slice)
330 {
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);
336 
337  OPEN_READER(re, gb);
338  UPDATE_CACHE(re, gb); \
339  run = 4;
340  level = 2;
341 
342  max_coeffs = 64 << log2_block_count;
343  block_mask = blocks_per_slice - 1;
344 
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)))
348  break;
349 
351  pos += run + 1;
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;
355  }
356 
357  DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
358  level += 1;
359 
360  i = pos >> log2_block_count;
361 
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);
365  }
366 
367  CLOSE_READER(re, gb);
368  return 0;
369 }
370 
372  uint16_t *dst, int dst_stride,
373  const uint8_t *buf, unsigned buf_size,
374  const int16_t *qmat)
375 {
376  ProresContext *ctx = avctx->priv_data;
377  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
378  int16_t *block;
379  GetBitContext gb;
380  int i, blocks_per_slice = slice->mb_count<<2;
381  int ret;
382 
383  for (i = 0; i < blocks_per_slice; i++)
384  ctx->bdsp.clear_block(blocks+(i<<6));
385 
386  init_get_bits(&gb, buf, buf_size << 3);
387 
388  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
389  return ret;
390  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
391  return ret;
392 
393  block = blocks;
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);
399  block += 4*64;
400  dst += 16;
401  }
402  return 0;
403 }
404 
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)
409 {
410  ProresContext *ctx = avctx->priv_data;
411  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
412  int16_t *block;
413  GetBitContext gb;
414  int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
415  int ret;
416 
417  for (i = 0; i < blocks_per_slice; i++)
418  ctx->bdsp.clear_block(blocks+(i<<6));
419 
420  init_get_bits(&gb, buf, buf_size << 3);
421 
422  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
423  return ret;
424  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
425  return ret;
426 
427  block = blocks;
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);
432  block += 2*64;
433  dst += 8;
434  }
435  }
436  return 0;
437 }
438 
439 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
440  const int num_bits)
441 {
442  const int mask = (1 << num_bits) - 1;
443  int i, idx, val, alpha_val;
444 
445  idx = 0;
446  alpha_val = mask;
447  do {
448  do {
449  if (get_bits1(gb)) {
450  val = get_bits(gb, num_bits);
451  } else {
452  int sign;
453  val = get_bits(gb, num_bits == 16 ? 7 : 4);
454  sign = val & 1;
455  val = (val + 2) >> 1;
456  if (sign)
457  val = -val;
458  }
459  alpha_val = (alpha_val + val) & mask;
460  if (num_bits == 16) {
461  dst[idx++] = alpha_val >> 6;
462  } else {
463  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
464  }
465  if (idx >= num_coeffs)
466  break;
467  } while (get_bits_left(gb)>0 && get_bits1(gb));
468  val = get_bits(gb, 4);
469  if (!val)
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;
476  } else {
477  for (i = 0; i < val; i++)
478  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
479 
480  }
481  } while (idx < num_coeffs);
482 }
483 
484 /**
485  * Decode alpha slice plane.
486  */
488  uint16_t *dst, int dst_stride,
489  const uint8_t *buf, int buf_size,
490  int blocks_per_slice)
491 {
492  GetBitContext gb;
493  int i;
494  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
495  int16_t *block;
496 
497  for (i = 0; i < blocks_per_slice<<2; i++)
498  ctx->bdsp.clear_block(blocks+(i<<6));
499 
500  init_get_bits(&gb, buf, buf_size << 3);
501 
502  if (ctx->alpha_info == 2) {
503  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
504  } else {
505  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
506  }
507 
508  block = blocks;
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;
513  }
514 }
515 
516 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
517 {
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]);
528  int mb_x_shift;
529  int ret;
530 
531  slice->ret = -1;
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);
534 
535  // slice header
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;
545 
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;
550  }
551 
552  buf += hdr_size;
553 
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;
557  }
558 
559  if (ctx->frame_type == 0) {
560  luma_stride = pic->linesize[0];
561  chroma_stride = pic->linesize[1];
562  } else {
563  luma_stride = pic->linesize[0] << 1;
564  chroma_stride = pic->linesize[1] << 1;
565  }
566 
567  if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
568  mb_x_shift = 5;
569  log2_chroma_blocks_per_mb = 2;
570  } else {
571  mb_x_shift = 4;
572  log2_chroma_blocks_per_mb = 1;
573  }
574 
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);
579 
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];
585  }
586 
587  ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
588  buf, y_data_size, qmat_luma_scaled);
589  if (ret < 0)
590  return ret;
591 
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);
596  if (ret < 0)
597  return ret;
598 
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);
602  if (ret < 0)
603  return ret;
604  }
605  else {
606  size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
607  size_t i, j;
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;
612  }
613  }
614 
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);
620 
621  slice->ret = 0;
622  return 0;
623 }
624 
625 static int decode_picture(AVCodecContext *avctx)
626 {
627  ProresContext *ctx = avctx->priv_data;
628  int i;
629  int error = 0;
630 
631  avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
632 
633  for (i = 0; i < ctx->slice_count; i++)
634  error += ctx->slices[i].ret < 0;
635 
636  if (error)
638  if (error < ctx->slice_count)
639  return 0;
640 
641  return ctx->slices[0].ret;
642 }
643 
644 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
645  AVPacket *avpkt)
646 {
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;
653 
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;
657  }
658 
659  ctx->frame = frame;
661  ctx->frame->key_frame = 1;
662  ctx->first_field = 1;
663 
664  buf += 8;
665  buf_size -= 8;
666 
667  frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
668  if (frame_hdr_size < 0)
669  return frame_hdr_size;
670 
671  buf += frame_hdr_size;
672  buf_size -= frame_hdr_size;
673 
674  if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
675  return ret;
676 
678  pic_size = decode_picture_header(avctx, buf, buf_size);
679  if (pic_size < 0) {
680  av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
681  return pic_size;
682  }
683 
684  if ((ret = decode_picture(avctx)) < 0) {
685  av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
686  return ret;
687  }
688 
689  buf += pic_size;
690  buf_size -= pic_size;
691 
692  if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
693  ctx->first_field = 0;
694  goto decode_picture;
695  }
696 
697  *got_frame = 1;
698 
699  return avpkt->size;
700 }
701 
702 #if HAVE_THREADS
703 static int decode_init_thread_copy(AVCodecContext *avctx)
704 {
705  ProresContext *ctx = avctx->priv_data;
706 
707  ctx->slices = NULL;
708 
709  return 0;
710 }
711 #endif
712 
714 {
715  ProresContext *ctx = avctx->priv_data;
716 
717  av_freep(&ctx->slices);
718 
719  return 0;
720 }
721 
723  .name = "prores",
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),
728  .init = decode_init,
729  .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
730  .close = decode_close,
731  .decode = decode_frame,
733 };
#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:218
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:36
uint8_t qmat_luma[64]
Definition: proresdec.h:42
float re
Definition: fft.c:82
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:417
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:381
static int init_thread_copy(AVCodecContext *avctx)
Definition: tta.c:392
AVFrame * f
Definition: thread.h:35
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:516
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:371
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2163
int size
Definition: avcodec.h:1445
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:60
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:1742
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:33
uint8_t run
Definition: svq3.c:206
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2756
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
#define src
Definition: vp8dsp.c:254
AVCodec.
Definition: avcodec.h:3423
static int16_t block[64]
Definition: dct.c:115
unsigned data_size
Definition: proresdec.h:33
AVFrame * frame
Definition: proresdec.h:40
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:154
Multithreading support functions.
static av_cold int decode_init(AVCodecContext *avctx)
Definition: proresdec2.c:48
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:722
#define height
uint8_t * data
Definition: avcodec.h:1444
#define ff_dlog(a,...)
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:365
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:869
#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:814
unsigned mb_width
width of the current picture in mb
Definition: proresdec.h:46
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:178
#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:3128
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * arg
Definition: jacosubdec.c:66
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1612
const char * name
Name of the codec implementation.
Definition: avcodec.h:3430
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
#define CLOSE_READER(name, gb)
Definition: get_bits.h:149
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1023
unsigned mb_x
Definition: proresdec.h:30
#define SKIP_BITS(name, gb, num)
Definition: get_bits.h:193
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:225
common internal API header
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:301
#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:1705
uint8_t idct_permutation[64]
Definition: proresdsp.h:34
int size_in_bits
Definition: get_bits.h:68
AVFormatContext * ctx
Definition: movenc.c:48
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2142
#define LAST_SKIP_BITS(name, gb, num)
Definition: get_bits.h:199
static const uint8_t lev_to_cb[10]
Definition: proresdec2.c:326
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:418
uint8_t interlaced_scan[64]
Definition: proresdec.h:49
static void error(const char *err)
#define SHOW_UBITS(name, gb, num)
Definition: get_bits.h:211
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:1027
const uint8_t ff_prores_interlaced_scan[64]
Definition: proresdata.c:36
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
main external API structure.
Definition: avcodec.h:1532
const uint8_t ff_prores_progressive_scan[64]
Definition: proresdata.c:25
void(* idct_put)(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
Definition: proresdsp.h:35
static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
Definition: proresdec2.c:41
#define OPEN_READER(name, gb)
Definition: get_bits.h:138
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:328
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:487
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:405
static const uint8_t run_to_cb[16]
Definition: proresdec2.c:325
uint8_t progressive_scan[64]
Definition: proresdec.h:48
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2156
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2149
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:615
#define TOSIGNED(x)
Definition: proresdec2.c:291
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: proresdec2.c:644
#define DECODE_CODEWORD(val, codebook, SKIP)
Definition: proresdec2.c:259
#define FF_DECODE_ERROR_INVALID_BITSTREAM
Definition: frame.h:515
int decode_error_flags
decode error flags of the frame, set to a combination of FF_DECODE_ERROR_xxx flags if the decoder pro...
Definition: frame.h:514
#define flags(name, subs,...)
Definition: cbs_av1.c:596
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:380
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
uint8_t level
Definition: svq3.c:207
static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs, const int num_bits)
Definition: proresdec2.c:439
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:511
#define LOCAL_ALIGNED_32(t, v,...)
Definition: internal.h:137
#define SHOW_SBITS(name, gb, num)
Definition: get_bits.h:212
#define FIRST_DC_CB
Definition: proresdec2.c:293
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
static const uint8_t dc_codebook[7]
Definition: proresdec2.c:295
void * priv_data
Definition: avcodec.h:1559
uint8_t qmat_chroma[64]
Definition: proresdec.h:43
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:370
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:2844
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:487
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:296
static int decode_frame_header(ProresContext *ctx, const uint8_t *buf, const int data_size, AVCodecContext *avctx)
Definition: proresdec2.c:67
static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out, int blocks_per_slice)
Definition: proresdec2.c:297
static av_cold int decode_close(AVCodecContext *avctx)
Definition: proresdec2.c:713
FILE * out
Definition: movenc.c:54
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:131
#define av_freep(p)
#define av_always_inline
Definition: attributes.h:39
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:1421
static int decode_picture(AVCodecContext *avctx)
Definition: proresdec2.c:625
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:967
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191