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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, SKIP) \
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  if (bits > FFMIN(MIN_CACHE_BITS, 31)) \
271  return AVERROR_INVALIDDATA; \
272  val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
273  ((switch_bits + 1) << rice_order); \
274  SKIP(re, gb, bits); \
275  } else if (rice_order) { \
276  SKIP_BITS(re, gb, q+1); \
277  val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
278  SKIP(re, gb, rice_order); \
279  } else { \
280  val = q; \
281  SKIP(re, gb, q+1); \
282  } \
283  } while (0)
284 
285 #define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
286 
287 #define FIRST_DC_CB 0xB8
288 
289 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
290 
292  int blocks_per_slice)
293 {
294  int16_t prev_dc;
295  int code, i, sign;
296 
297  OPEN_READER(re, gb);
298 
300  prev_dc = TOSIGNED(code);
301  out[0] = prev_dc;
302 
303  out += 64; // dc coeff for the next block
304 
305  code = 5;
306  sign = 0;
307  for (i = 1; i < blocks_per_slice; i++, out += 64) {
309  if(code) sign ^= -(code & 1);
310  else sign = 0;
311  prev_dc += (((code + 1) >> 1) ^ sign) - sign;
312  out[0] = prev_dc;
313  }
314  CLOSE_READER(re, gb);
315  return 0;
316 }
317 
318 // adaptive codebook switching lut according to previous run/level values
319 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
320 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
321 
323  int16_t *out, int blocks_per_slice)
324 {
325  ProresContext *ctx = avctx->priv_data;
326  int block_mask, sign;
327  unsigned pos, run, level;
328  int max_coeffs, i, bits_left;
329  int log2_block_count = av_log2(blocks_per_slice);
330 
331  OPEN_READER(re, gb);
332  UPDATE_CACHE(re, gb); \
333  run = 4;
334  level = 2;
335 
336  max_coeffs = 64 << log2_block_count;
337  block_mask = blocks_per_slice - 1;
338 
339  for (pos = block_mask;;) {
340  bits_left = gb->size_in_bits - re_index;
341  if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
342  break;
343 
345  pos += run + 1;
346  if (pos >= max_coeffs) {
347  av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
348  return AVERROR_INVALIDDATA;
349  }
350 
351  DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS);
352  level += 1;
353 
354  i = pos >> log2_block_count;
355 
356  sign = SHOW_SBITS(re, gb, 1);
357  SKIP_BITS(re, gb, 1);
358  out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
359  }
360 
361  CLOSE_READER(re, gb);
362  return 0;
363 }
364 
366  uint16_t *dst, int dst_stride,
367  const uint8_t *buf, unsigned buf_size,
368  const int16_t *qmat)
369 {
370  ProresContext *ctx = avctx->priv_data;
371  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
372  int16_t *block;
373  GetBitContext gb;
374  int i, blocks_per_slice = slice->mb_count<<2;
375  int ret;
376 
377  for (i = 0; i < blocks_per_slice; i++)
378  ctx->bdsp.clear_block(blocks+(i<<6));
379 
380  init_get_bits(&gb, buf, buf_size << 3);
381 
382  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
383  return ret;
384  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
385  return ret;
386 
387  block = blocks;
388  for (i = 0; i < slice->mb_count; i++) {
389  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
390  ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
391  ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
392  ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
393  block += 4*64;
394  dst += 16;
395  }
396  return 0;
397 }
398 
400  uint16_t *dst, int dst_stride,
401  const uint8_t *buf, unsigned buf_size,
402  const int16_t *qmat, int log2_blocks_per_mb)
403 {
404  ProresContext *ctx = avctx->priv_data;
405  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
406  int16_t *block;
407  GetBitContext gb;
408  int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
409  int ret;
410 
411  for (i = 0; i < blocks_per_slice; i++)
412  ctx->bdsp.clear_block(blocks+(i<<6));
413 
414  init_get_bits(&gb, buf, buf_size << 3);
415 
416  if ((ret = decode_dc_coeffs(&gb, blocks, blocks_per_slice)) < 0)
417  return ret;
418  if ((ret = decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice)) < 0)
419  return ret;
420 
421  block = blocks;
422  for (i = 0; i < slice->mb_count; i++) {
423  for (j = 0; j < log2_blocks_per_mb; j++) {
424  ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
425  ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
426  block += 2*64;
427  dst += 8;
428  }
429  }
430  return 0;
431 }
432 
433 static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs,
434  const int num_bits)
435 {
436  const int mask = (1 << num_bits) - 1;
437  int i, idx, val, alpha_val;
438 
439  idx = 0;
440  alpha_val = mask;
441  do {
442  do {
443  if (get_bits1(gb)) {
444  val = get_bits(gb, num_bits);
445  } else {
446  int sign;
447  val = get_bits(gb, num_bits == 16 ? 7 : 4);
448  sign = val & 1;
449  val = (val + 2) >> 1;
450  if (sign)
451  val = -val;
452  }
453  alpha_val = (alpha_val + val) & mask;
454  if (num_bits == 16) {
455  dst[idx++] = alpha_val >> 6;
456  } else {
457  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
458  }
459  if (idx >= num_coeffs)
460  break;
461  } while (get_bits_left(gb)>0 && get_bits1(gb));
462  val = get_bits(gb, 4);
463  if (!val)
464  val = get_bits(gb, 11);
465  if (idx + val > num_coeffs)
466  val = num_coeffs - idx;
467  if (num_bits == 16) {
468  for (i = 0; i < val; i++)
469  dst[idx++] = alpha_val >> 6;
470  } else {
471  for (i = 0; i < val; i++)
472  dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
473 
474  }
475  } while (idx < num_coeffs);
476 }
477 
478 /**
479  * Decode alpha slice plane.
480  */
482  uint16_t *dst, int dst_stride,
483  const uint8_t *buf, int buf_size,
484  int blocks_per_slice)
485 {
486  GetBitContext gb;
487  int i;
488  LOCAL_ALIGNED_32(int16_t, blocks, [8*4*64]);
489  int16_t *block;
490 
491  for (i = 0; i < blocks_per_slice<<2; i++)
492  ctx->bdsp.clear_block(blocks+(i<<6));
493 
494  init_get_bits(&gb, buf, buf_size << 3);
495 
496  if (ctx->alpha_info == 2) {
497  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
498  } else {
499  unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
500  }
501 
502  block = blocks;
503  for (i = 0; i < 16; i++) {
504  memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
505  dst += dst_stride >> 1;
506  block += 16 * blocks_per_slice;
507  }
508 }
509 
510 static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
511 {
512  ProresContext *ctx = avctx->priv_data;
513  SliceContext *slice = &ctx->slices[jobnr];
514  const uint8_t *buf = slice->data;
515  AVFrame *pic = ctx->frame;
516  int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
517  int luma_stride, chroma_stride;
518  int y_data_size, u_data_size, v_data_size, a_data_size;
519  uint8_t *dest_y, *dest_u, *dest_v, *dest_a;
520  int16_t qmat_luma_scaled[64];
521  int16_t qmat_chroma_scaled[64];
522  int mb_x_shift;
523  int ret;
524 
525  slice->ret = -1;
526  //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
527  // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
528 
529  // slice header
530  hdr_size = buf[0] >> 3;
531  qscale = av_clip(buf[1], 1, 224);
532  qscale = qscale > 128 ? qscale - 96 << 2: qscale;
533  y_data_size = AV_RB16(buf + 2);
534  u_data_size = AV_RB16(buf + 4);
535  v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
536  if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
537  a_data_size = slice->data_size - y_data_size - u_data_size -
538  v_data_size - hdr_size;
539 
540  if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
541  || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
542  av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
543  return AVERROR_INVALIDDATA;
544  }
545 
546  buf += hdr_size;
547 
548  for (i = 0; i < 64; i++) {
549  qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
550  qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
551  }
552 
553  if (ctx->frame_type == 0) {
554  luma_stride = pic->linesize[0];
555  chroma_stride = pic->linesize[1];
556  } else {
557  luma_stride = pic->linesize[0] << 1;
558  chroma_stride = pic->linesize[1] << 1;
559  }
560 
561  if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
562  mb_x_shift = 5;
563  log2_chroma_blocks_per_mb = 2;
564  } else {
565  mb_x_shift = 4;
566  log2_chroma_blocks_per_mb = 1;
567  }
568 
569  dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
570  dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
571  dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
572  dest_a = pic->data[3] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
573 
574  if (ctx->frame_type && ctx->first_field ^ ctx->frame->top_field_first) {
575  dest_y += pic->linesize[0];
576  dest_u += pic->linesize[1];
577  dest_v += pic->linesize[2];
578  dest_a += pic->linesize[3];
579  }
580 
581  ret = decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
582  buf, y_data_size, qmat_luma_scaled);
583  if (ret < 0)
584  return ret;
585 
586  if (!(avctx->flags & AV_CODEC_FLAG_GRAY) && (u_data_size + v_data_size) > 0) {
587  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
588  buf + y_data_size, u_data_size,
589  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
590  if (ret < 0)
591  return ret;
592 
593  ret = decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
594  buf + y_data_size + u_data_size, v_data_size,
595  qmat_chroma_scaled, log2_chroma_blocks_per_mb);
596  if (ret < 0)
597  return ret;
598  }
599  else {
600  size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
601  size_t i, j;
602  for (i = 0; i < 16; ++i)
603  for (j = 0; j < mb_max_x; ++j) {
604  *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
605  *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
606  }
607  }
608 
609  /* decode alpha plane if available */
610  if (ctx->alpha_info && pic->data[3] && a_data_size)
611  decode_slice_alpha(ctx, (uint16_t*)dest_a, luma_stride,
612  buf + y_data_size + u_data_size + v_data_size,
613  a_data_size, slice->mb_count);
614 
615  slice->ret = 0;
616  return 0;
617 }
618 
619 static int decode_picture(AVCodecContext *avctx)
620 {
621  ProresContext *ctx = avctx->priv_data;
622  int i;
623  int error = 0;
624 
625  avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
626 
627  for (i = 0; i < ctx->slice_count; i++)
628  error += ctx->slices[i].ret < 0;
629 
630  if (error)
632  if (error < ctx->slice_count)
633  return 0;
634 
635  return ctx->slices[0].ret;
636 }
637 
638 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
639  AVPacket *avpkt)
640 {
641  ProresContext *ctx = avctx->priv_data;
642  AVFrame *frame = data;
643  const uint8_t *buf = avpkt->data;
644  int buf_size = avpkt->size;
645  int frame_hdr_size, pic_size, ret;
646 
647  if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
648  av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
649  return AVERROR_INVALIDDATA;
650  }
651 
652  ctx->frame = frame;
654  ctx->frame->key_frame = 1;
655  ctx->first_field = 1;
656 
657  buf += 8;
658  buf_size -= 8;
659 
660  frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
661  if (frame_hdr_size < 0)
662  return frame_hdr_size;
663 
664  buf += frame_hdr_size;
665  buf_size -= frame_hdr_size;
666 
667  if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
668  return ret;
669 
671  pic_size = decode_picture_header(avctx, buf, buf_size);
672  if (pic_size < 0) {
673  av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
674  return pic_size;
675  }
676 
677  if ((ret = decode_picture(avctx)) < 0) {
678  av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
679  return ret;
680  }
681 
682  buf += pic_size;
683  buf_size -= pic_size;
684 
685  if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
686  ctx->first_field = 0;
687  goto decode_picture;
688  }
689 
690  *got_frame = 1;
691 
692  return avpkt->size;
693 }
694 
696 {
697  ProresContext *ctx = avctx->priv_data;
698 
699  av_freep(&ctx->slices);
700 
701  return 0;
702 }
703 
705  .name = "prores",
706  .long_name = NULL_IF_CONFIG_SMALL("ProRes"),
707  .type = AVMEDIA_TYPE_VIDEO,
708  .id = AV_CODEC_ID_PRORES,
709  .priv_data_size = sizeof(ProresContext),
710  .init = decode_init,
711  .close = decode_close,
712  .decode = decode_frame,
714 };
#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:201
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
float re
Definition: fft.c:82
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:415
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:261
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:510
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:365
int size
Definition: avcodec.h:1662
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:60
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:1971
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:3146
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:3721
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
AVFrame * frame
Definition: proresdec.h:40
static int16_t block[64]
Definition: dct.c:115
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:704
#define height
uint8_t * data
Definition: avcodec.h:1661
static int flags
Definition: log.c:57
#define ff_dlog(a,...)
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:348
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:898
#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:587
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:3514
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
const char * arg
Definition: jacosubdec.c:66
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1838
uint16_t width
Definition: gdv.c:47
const char * name
Name of the codec implementation.
Definition: avcodec.h:3728
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
#define CLOSE_READER(name, gb)
Definition: get_bits.h:131
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:229
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:284
#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:1930
uint8_t idct_permutation[64]
Definition: proresdsp.h:34
int size_in_bits
Definition: get_bits.h:58
AVFormatContext * ctx
Definition: movenc.c:48
#define LAST_SKIP_BITS(name, gb, num)
Definition: get_bits.h:181
static const uint8_t lev_to_cb[10]
Definition: proresdec2.c:320
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:416
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: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:1056
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:232
main external API structure.
Definition: avcodec.h:1743
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:120
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1604
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:322
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:313
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:399
static const uint8_t run_to_cb[16]
Definition: proresdec2.c:319
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:425
#define TOSIGNED(x)
Definition: proresdec2.c:285
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: proresdec2.c:638
#define DECODE_CODEWORD(val, codebook, SKIP)
Definition: proresdec2.c:253
#define FF_DECODE_ERROR_INVALID_BITSTREAM
Definition: frame.h:498
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:497
#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:215
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:433
#define LOCAL_ALIGNED_32(t, v,...)
Definition: internal.h:130
#define SHOW_SBITS(name, gb, num)
Definition: get_bits.h:194
#define FIRST_DC_CB
Definition: proresdec2.c:287
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
static const uint8_t dc_codebook[7]
Definition: proresdec2.c:289
void * priv_data
Definition: avcodec.h:1785
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:353
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:3234
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:481
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:279
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:291
static av_cold int decode_close(AVCodecContext *avctx)
Definition: proresdec2.c:695
FILE * out
Definition: movenc.c:54
#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:1638
static int decode_picture(AVCodecContext *avctx)
Definition: proresdec2.c:619
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:996