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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  avctx->color_primaries = buf[14];
121  avctx->color_trc = buf[15];
122  avctx->colorspace = buf[16];
123  avctx->color_range = AVCOL_RANGE_MPEG;
124 
125  ptr = buf + 20;
126  flags = buf[19];
127  ff_dlog(avctx, "flags %x\n", flags);
128 
129  if (flags & 2) {
130  if(buf + data_size - ptr < 64) {
131  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
132  return AVERROR_INVALIDDATA;
133  }
134  permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
135  ptr += 64;
136  } else {
137  memset(ctx->qmat_luma, 4, 64);
138  }
139 
140  if (flags & 1) {
141  if(buf + data_size - ptr < 64) {
142  av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
143  return AVERROR_INVALIDDATA;
144  }
145  permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
146  } else {
147  memset(ctx->qmat_chroma, 4, 64);
148  }
149 
150  return hdr_size;
151 }
152 
153 static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
154 {
155  ProresContext *ctx = avctx->priv_data;
156  int i, hdr_size, slice_count;
157  unsigned pic_data_size;
158  int log2_slice_mb_width, log2_slice_mb_height;
159  int slice_mb_count, mb_x, mb_y;
160  const uint8_t *data_ptr, *index_ptr;
161 
162  hdr_size = buf[0] >> 3;
163  if (hdr_size < 8 || hdr_size > buf_size) {
164  av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
165  return AVERROR_INVALIDDATA;
166  }
167 
168  pic_data_size = AV_RB32(buf + 1);
169  if (pic_data_size > buf_size) {
170  av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
171  return AVERROR_INVALIDDATA;
172  }
173 
174  log2_slice_mb_width = buf[7] >> 4;
175  log2_slice_mb_height = buf[7] & 0xF;
176  if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
177  av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
178  1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
179  return AVERROR_INVALIDDATA;
180  }
181 
182  ctx->mb_width = (avctx->width + 15) >> 4;
183  if (ctx->frame_type)
184  ctx->mb_height = (avctx->height + 31) >> 5;
185  else
186  ctx->mb_height = (avctx->height + 15) >> 4;
187 
188  // QT ignores the written value
189  // slice_count = AV_RB16(buf + 5);
190  slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
191  av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
192 
193  if (ctx->slice_count != slice_count || !ctx->slices) {
194  av_freep(&ctx->slices);
195  ctx->slice_count = 0;
196  ctx->slices = av_mallocz_array(slice_count, sizeof(*ctx->slices));
197  if (!ctx->slices)
198  return AVERROR(ENOMEM);
199  ctx->slice_count = slice_count;
200  }
201 
202  if (!slice_count)
203  return AVERROR(EINVAL);
204 
205  if (hdr_size + slice_count*2 > buf_size) {
206  av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
207  return AVERROR_INVALIDDATA;
208  }
209 
210  // parse slice information
211  index_ptr = buf + hdr_size;
212  data_ptr = index_ptr + slice_count*2;
213 
214  slice_mb_count = 1 << log2_slice_mb_width;
215  mb_x = 0;
216  mb_y = 0;
217 
218  for (i = 0; i < slice_count; i++) {
219  SliceContext *slice = &ctx->slices[i];
220 
221  slice->data = data_ptr;
222  data_ptr += AV_RB16(index_ptr + i*2);
223 
224  while (ctx->mb_width - mb_x < slice_mb_count)
225  slice_mb_count >>= 1;
226 
227  slice->mb_x = mb_x;
228  slice->mb_y = mb_y;
229  slice->mb_count = slice_mb_count;
230  slice->data_size = data_ptr - slice->data;
231 
232  if (slice->data_size < 6) {
233  av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
234  return AVERROR_INVALIDDATA;
235  }
236 
237  mb_x += slice_mb_count;
238  if (mb_x == ctx->mb_width) {
239  slice_mb_count = 1 << log2_slice_mb_width;
240  mb_x = 0;
241  mb_y++;
242  }
243  if (data_ptr > buf + buf_size) {
244  av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
245  return AVERROR_INVALIDDATA;
246  }
247  }
248 
249  if (mb_x || mb_y != ctx->mb_height) {
250  av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
251  mb_y, ctx->mb_height);
252  return AVERROR_INVALIDDATA;
253  }
254 
255  return pic_data_size;
256 }
257 
258 #define DECODE_CODEWORD(val, codebook, SKIP) \
259  do { \
260  unsigned int rice_order, exp_order, switch_bits; \
261  unsigned int q, buf, bits; \
262  \
263  UPDATE_CACHE(re, gb); \
264  buf = GET_CACHE(re, gb); \
265  \
266  /* number of bits to switch between rice and exp golomb */ \
267  switch_bits = codebook & 3; \
268  rice_order = codebook >> 5; \
269  exp_order = (codebook >> 2) & 7; \
270  \
271  q = 31 - av_log2(buf); \
272  \
273  if (q > switch_bits) { /* exp golomb */ \
274  bits = exp_order - switch_bits + (q<<1); \
275  if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
276  return AVERROR_INVALIDDATA; \
277  val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
278  ((switch_bits + 1) << rice_order); \
279  SKIP(re, gb, bits); \
280  } else if (rice_order) { \
281  SKIP_BITS(re, gb, q+1); \
282  val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
283  SKIP(re, gb, rice_order); \
284  } else { \
285  val = q; \
286  SKIP(re, gb, q+1); \
287  } \
288  } while (0)
289 
290 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
291 
292 #define FIRST_DC_CB 0xB8
293 
294 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
295 
297  int blocks_per_slice)
298 {
299  int16_t prev_dc;
300  int code, i, sign;
301 
302  OPEN_READER(re, gb);
303 
305  prev_dc = TOSIGNED(code);
306  out[0] = prev_dc;
307 
308  out += 64; // dc coeff for the next block
309 
310  code = 5;
311  sign = 0;
312  for (i = 1; i < blocks_per_slice; i++, out += 64) {
314  if(code) sign ^= -(code & 1);
315  else sign = 0;
316  prev_dc += (((code + 1) >> 1) ^ sign) - sign;
317  out[0] = prev_dc;
318  }
319  CLOSE_READER(re, gb);
320  return 0;
321 }
322 
323 // adaptive codebook switching lut according to previous run/level values
324 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
325 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
326 
328  int16_t *out, int blocks_per_slice)
329 {
330  ProresContext *ctx = avctx->priv_data;
331  int block_mask, sign;
332  unsigned pos, run, level;
333  int max_coeffs, i, bits_left;
334  int log2_block_count = av_log2(blocks_per_slice);
335 
336  OPEN_READER(re, gb);
337  UPDATE_CACHE(re, gb); \
338  run = 4;
339  level = 2;
340 
341  max_coeffs = 64 << log2_block_count;
342  block_mask = blocks_per_slice - 1;
343 
344  for (pos = block_mask;;) {
345  bits_left = gb->size_in_bits - re_index;
346  if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
347  break;
348 
350  pos += run + 1;
351  if (pos >= max_coeffs) {
352  av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
353  return AVERROR_INVALIDDATA;
354  }
355 
356  DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
357  level += 1;
358 
359  i = pos >> log2_block_count;
360 
361  sign = SHOW_SBITS(re, gb, 1);
362  SKIP_BITS(re, gb, 1);
363  out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
364  }
365 
366  CLOSE_READER(re, gb);
367  return 0;
368 }
369 
371  uint16_t *dst, int dst_stride,
372  const uint8_t *buf, unsigned buf_size,
373  const int16_t *qmat)
374 {
375  ProresContext *ctx = avctx->priv_data;
376  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
377  int16_t *block;
378  GetBitContext gb;
379  int i, blocks_per_slice = slice->mb_count<<2;
380  int ret;
381 
382  for (i = 0; i < blocks_per_slice; i++)
383  ctx->bdsp.clear_block(blocks+(i<<6));
384 
385  init_get_bits(&gb, buf, buf_size << 3);
386 
387  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
388  return ret;
389  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
390  return ret;
391 
392  block = blocks;
393  for (i = 0; i < slice->mb_count; i++) {
394  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
395  ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
396  ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
397  ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
398  block += 4*64;
399  dst += 16;
400  }
401  return 0;
402 }
403 
405  uint16_t *dst, int dst_stride,
406  const uint8_t *buf, unsigned buf_size,
407  const int16_t *qmat, int log2_blocks_per_mb)
408 {
409  ProresContext *ctx = avctx->priv_data;
410  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
411  int16_t *block;
412  GetBitContext gb;
413  int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
414  int ret;
415 
416  for (i = 0; i < blocks_per_slice; i++)
417  ctx->bdsp.clear_block(blocks+(i<<6));
418 
419  init_get_bits(&gb, buf, buf_size << 3);
420 
421  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
422  return ret;
423  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
424  return ret;
425 
426  block = blocks;
427  for (i = 0; i < slice->mb_count; i++) {
428  for (j = 0; j < log2_blocks_per_mb; j++) {
429  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
430  ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
431  block += 2*64;
432  dst += 8;
433  }
434  }
435  return 0;
436 }
437 
438 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
439  const int num_bits)
440 {
441  const int mask = (1 << num_bits) - 1;
442  int i, idx, val, alpha_val;
443 
444  idx = 0;
445  alpha_val = mask;
446  do {
447  do {
448  if (get_bits1(gb)) {
449  val = get_bits(gb, num_bits);
450  } else {
451  int sign;
452  val = get_bits(gb, num_bits == 16 ? 7 : 4);
453  sign = val & 1;
454  val = (val + 2) >> 1;
455  if (sign)
456  val = -val;
457  }
458  alpha_val = (alpha_val + val) & mask;
459  if (num_bits == 16) {
460  dst[idx++] = alpha_val >> 6;
461  } else {
462  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
463  }
464  if (idx >= num_coeffs)
465  break;
466  } while (get_bits_left(gb)>0 && get_bits1(gb));
467  val = get_bits(gb, 4);
468  if (!val)
469  val = get_bits(gb, 11);
470  if (idx + val > num_coeffs)
471  val = num_coeffs - idx;
472  if (num_bits == 16) {
473  for (i = 0; i < val; i++)
474  dst[idx++] = alpha_val >> 6;
475  } else {
476  for (i = 0; i < val; i++)
477  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
478 
479  }
480  } while (idx < num_coeffs);
481 }
482 
483 /**
484  * Decode alpha slice plane.
485  */
487  uint16_t *dst, int dst_stride,
488  const uint8_t *buf, int buf_size,
489  int blocks_per_slice)
490 {
491  GetBitContext gb;
492  int i;
493  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
494  int16_t *block;
495 
496  for (i = 0; i < blocks_per_slice<<2; i++)
497  ctx->bdsp.clear_block(blocks+(i<<6));
498 
499  init_get_bits(&gb, buf, buf_size << 3);
500 
501  if (ctx->alpha_info == 2) {
502  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
503  } else {
504  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
505  }
506 
507  block = blocks;
508  for (i = 0; i < 16; i++) {
509  memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
510  dst += dst_stride >> 1;
511  block += 16 * blocks_per_slice;
512  }
513 }
514 
515 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
516 {
517  ProresContext *ctx = avctx->priv_data;
518  SliceContext *slice = &ctx->slices[jobnr];
519  const uint8_t *buf = slice->data;
520  AVFrame *pic = ctx->frame;
521  int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
522  int luma_stride, chroma_stride;
523  int y_data_size, u_data_size, v_data_size, a_data_size;
524  uint8_t *dest_y, *dest_u, *dest_v, *dest_a;
525  LOCAL_ALIGNED_16(int16_t, qmat_luma_scaled, [64]);
526  LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
527  int mb_x_shift;
528  int ret;
529 
530  slice->ret = -1;
531  //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
532  // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
533 
534  // slice header
535  hdr_size = buf[0] >> 3;
536  qscale = av_clip(buf[1], 1, 224);
537  qscale = qscale > 128 ? qscale - 96 << 2: qscale;
538  y_data_size = AV_RB16(buf + 2);
539  u_data_size = AV_RB16(buf + 4);
540  v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
541  if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
542  a_data_size = slice->data_size - y_data_size - u_data_size -
543  v_data_size - hdr_size;
544 
545  if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
546  || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
547  av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
548  return AVERROR_INVALIDDATA;
549  }
550 
551  buf += hdr_size;
552 
553  for (i = 0; i < 64; i++) {
554  qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
555  qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
556  }
557 
558  if (ctx->frame_type == 0) {
559  luma_stride = pic->linesize[0];
560  chroma_stride = pic->linesize[1];
561  } else {
562  luma_stride = pic->linesize[0] << 1;
563  chroma_stride = pic->linesize[1] << 1;
564  }
565 
566  if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
567  mb_x_shift = 5;
568  log2_chroma_blocks_per_mb = 2;
569  } else {
570  mb_x_shift = 4;
571  log2_chroma_blocks_per_mb = 1;
572  }
573 
574  dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
575  dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
576  dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
577  dest_a = pic->data[3] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
578 
579  if (ctx->frame_type && ctx->first_field ^ ctx->frame->top_field_first) {
580  dest_y += pic->linesize[0];
581  dest_u += pic->linesize[1];
582  dest_v += pic->linesize[2];
583  dest_a += pic->linesize[3];
584  }
585 
586  ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
587  buf, y_data_size, qmat_luma_scaled);
588  if (ret < 0)
589  return ret;
590 
591  if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
592  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
593  buf + y_data_size, u_data_size,
594  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
595  if (ret < 0)
596  return ret;
597 
598  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
599  buf + y_data_size + u_data_size, v_data_size,
600  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
601  if (ret < 0)
602  return ret;
603  }
604  else {
605  size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
606  size_t i, j;
607  for (i = 0; i < 16; ++i)
608  for (j = 0; j < mb_max_x; ++j) {
609  *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
610  *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
611  }
612  }
613 
614  /* decode alpha plane if available */
615  if (ctx->alpha_info && pic->data[3] && a_data_size)
616  decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
617  buf + y_data_size + u_data_size + v_data_size,
618  a_data_size, slice->mb_count);
619 
620  slice->ret = 0;
621  return 0;
622 }
623 
624 static int decode_picture(AVCodecContext *avctx)
625 {
626  ProresContext *ctx = avctx->priv_data;
627  int i;
628  int error = 0;
629 
630  avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
631 
632  for (i = 0; i < ctx->slice_count; i++)
633  error += ctx->slices[i].ret < 0;
634 
635  if (error)
637  if (error < ctx->slice_count)
638  return 0;
639 
640  return ctx->slices[0].ret;
641 }
642 
643 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
644  AVPacket *avpkt)
645 {
646  ProresContext *ctx = avctx->priv_data;
647  AVFrame *frame = data;
648  const uint8_t *buf = avpkt->data;
649  int buf_size = avpkt->size;
650  int frame_hdr_size, pic_size, ret;
651 
652  if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
653  av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
654  return AVERROR_INVALIDDATA;
655  }
656 
657  ctx->frame = frame;
659  ctx->frame->key_frame = 1;
660  ctx->first_field = 1;
661 
662  buf += 8;
663  buf_size -= 8;
664 
665  frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
666  if (frame_hdr_size < 0)
667  return frame_hdr_size;
668 
669  buf += frame_hdr_size;
670  buf_size -= frame_hdr_size;
671 
672  if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
673  return ret;
674 
676  pic_size = decode_picture_header(avctx, buf, buf_size);
677  if (pic_size < 0) {
678  av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
679  return pic_size;
680  }
681 
682  if ((ret = decode_picture(avctx)) < 0) {
683  av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
684  return ret;
685  }
686 
687  buf += pic_size;
688  buf_size -= pic_size;
689 
690  if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
691  ctx->first_field = 0;
692  goto decode_picture;
693  }
694 
695  *got_frame = 1;
696 
697  return avpkt->size;
698 }
699 
701 {
702  ProresContext *ctx = avctx->priv_data;
703 
704  av_freep(&ctx->slices);
705 
706  return 0;
707 }
708 
710  .name = "prores",
711  .long_name = NULL_IF_CONFIG_SMALL("ProRes (iCodec Pro)"),
712  .type = AVMEDIA_TYPE_VIDEO,
713  .id = AV_CODEC_ID_PRORES,
714  .priv_data_size = sizeof(ProresContext),
715  .init = decode_init,
716  .close = decode_close,
717  .decode = decode_frame,
719 };
#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:408
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:269
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:515
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:370
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2150
int size
Definition: avcodec.h:1433
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:1729
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:2743
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:3410
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
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:153
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:709
#define height
uint8_t * data
Definition: avcodec.h:1432
#define ff_dlog(a,...)
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:365
#define flags(name, subs,...)
Definition: cbs_h2645.c:263
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:863
#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:596
unsigned mb_width
width of the current picture in mb
Definition: proresdec.h:46
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:161
#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:3115
#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:1600
uint16_t width
Definition: gdv.c:47
const char * name
Name of the codec implementation.
Definition: avcodec.h:3417
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:375
#define CLOSE_READER(name, gb)
Definition: get_bits.h:132
unsigned mb_x
Definition: proresdec.h:30
#define SKIP_BITS(name, gb, num)
Definition: get_bits.h:176
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
int width
picture width / height.
Definition: avcodec.h:1692
uint8_t idct_permutation[64]
Definition: proresdsp.h:34
int size_in_bits
Definition: get_bits.h:59
AVFormatContext * ctx
Definition: movenc.c:48
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2129
#define LAST_SKIP_BITS(name, gb, num)
Definition: get_bits.h:182
static const uint8_t lev_to_cb[10]
Definition: proresdec2.c:325
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:409
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:194
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:1021
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
main external API structure.
Definition: avcodec.h:1520
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:40
#define OPEN_READER(name, gb)
Definition: get_bits.h:121
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1926
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:327
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:321
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:404
static const uint8_t run_to_cb[16]
Definition: proresdec2.c:324
uint8_t progressive_scan[64]
Definition: proresdec.h:48
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2143
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2136
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:433
#define TOSIGNED(x)
Definition: proresdec2.c:290
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: proresdec2.c:643
#define DECODE_CODEWORD(val, codebook, SKIP)
Definition: proresdec2.c:258
#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 AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:373
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:438
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:502
#define LOCAL_ALIGNED_32(t, v,...)
Definition: internal.h:137
#define SHOW_SBITS(name, gb, num)
Definition: get_bits.h:195
#define FIRST_DC_CB
Definition: proresdec2.c:292
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
static const uint8_t dc_codebook[7]
Definition: proresdec2.c:294
void * priv_data
Definition: avcodec.h:1547
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:2831
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:486
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:66
static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out, int blocks_per_slice)
Definition: proresdec2.c:296
static av_cold int decode_close(AVCodecContext *avctx)
Definition: proresdec2.c:700
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:1409
static int decode_picture(AVCodecContext *avctx)
Definition: proresdec2.c:624
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:961
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191