FFmpeg  4.3
cfhd.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015-2016 Kieran Kunhya <kieran@kunhya.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * Cineform HD video decoder
24  */
25 
26 #include "libavutil/attributes.h"
27 #include "libavutil/buffer.h"
28 #include "libavutil/common.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/intreadwrite.h"
31 #include "libavutil/opt.h"
32 
33 #include "avcodec.h"
34 #include "bytestream.h"
35 #include "get_bits.h"
36 #include "internal.h"
37 #include "thread.h"
38 #include "cfhd.h"
39 
40 #define ALPHA_COMPAND_DC_OFFSET 256
41 #define ALPHA_COMPAND_GAIN 9400
42 
43 enum CFHDParam {
46  ImageWidth = 20,
54  ChannelWidth = 104,
57 };
58 
59 
60 
61 static av_cold int cfhd_init(AVCodecContext *avctx)
62 {
63  CFHDContext *s = avctx->priv_data;
64 
65  avctx->bits_per_raw_sample = 10;
66  s->avctx = avctx;
67 
68  return ff_cfhd_init_vlcs(s);
69 }
70 
72 {
73  s->subband_num = 0;
74  s->level = 0;
75  s->subband_num_actual = 0;
76 }
77 
79 {
80  s->peak.level = 0;
81  s->peak.offset = 0;
82  memset(&s->peak.base, 0, sizeof(s->peak.base));
83 }
84 
86 {
87  s->coded_width = 0;
88  s->coded_height = 0;
89  s->cropped_height = 0;
90  s->bpc = 10;
91  s->channel_cnt = 4;
93  s->channel_num = 0;
94  s->lowpass_precision = 16;
95  s->quantisation = 1;
96  s->wavelet_depth = 3;
97  s->pshift = 1;
98  s->codebook = 0;
99  s->difference_coding = 0;
100  s->progressive = 0;
103 }
104 
105 /* TODO: merge with VLC tables or use LUT */
106 static inline int dequant_and_decompand(int level, int quantisation, int codebook)
107 {
108  if (codebook == 0 || codebook == 1) {
109  int64_t abslevel = abs(level);
110  if (level < 264)
111  return (abslevel + ((768 * abslevel * abslevel * abslevel) / (255 * 255 * 255))) *
112  FFSIGN(level) * quantisation;
113  else
114  return level * quantisation;
115  } else
116  return level * quantisation;
117 }
118 
119 static inline void difference_coding(int16_t *band, int width, int height)
120 {
121 
122  int i,j;
123  for (i = 0; i < height; i++) {
124  for (j = 1; j < width; j++) {
125  band[j] += band[j-1];
126  }
127  band += width;
128  }
129 }
130 
131 static inline void peak_table(int16_t *band, Peak *peak, int length)
132 {
133  int i;
134  for (i = 0; i < length; i++)
135  if (abs(band[i]) > peak->level)
136  band[i] = bytestream2_get_le16(&peak->base);
137 }
138 
139 static inline void process_alpha(int16_t *alpha, int width)
140 {
141  int i, channel;
142  for (i = 0; i < width; i++) {
143  channel = alpha[i];
144  channel -= ALPHA_COMPAND_DC_OFFSET;
145  channel <<= 3;
146  channel *= ALPHA_COMPAND_GAIN;
147  channel >>= 16;
148  channel = av_clip_uintp2(channel, 12);
149  alpha[i] = channel;
150  }
151 }
152 
153 static inline void process_bayer(AVFrame *frame)
154 {
155  const int linesize = frame->linesize[0];
156  uint16_t *r = (uint16_t *)frame->data[0];
157  uint16_t *g1 = (uint16_t *)(frame->data[0] + 2);
158  uint16_t *g2 = (uint16_t *)(frame->data[0] + frame->linesize[0]);
159  uint16_t *b = (uint16_t *)(frame->data[0] + frame->linesize[0] + 2);
160  const int mid = 2048;
161 
162  for (int y = 0; y < frame->height >> 1; y++) {
163  for (int x = 0; x < frame->width; x += 2) {
164  int R, G1, G2, B;
165  int g, rg, bg, gd;
166 
167  g = r[x];
168  rg = g1[x];
169  bg = g2[x];
170  gd = b[x];
171  gd -= mid;
172 
173  R = (rg - mid) * 2 + g;
174  G1 = g + gd;
175  G2 = g - gd;
176  B = (bg - mid) * 2 + g;
177 
178  R = av_clip_uintp2(R * 16, 16);
179  G1 = av_clip_uintp2(G1 * 16, 16);
180  G2 = av_clip_uintp2(G2 * 16, 16);
181  B = av_clip_uintp2(B * 16, 16);
182 
183  r[x] = R;
184  g1[x] = G1;
185  g2[x] = G2;
186  b[x] = B;
187  }
188 
189  r += linesize;
190  g1 += linesize;
191  g2 += linesize;
192  b += linesize;
193  }
194 }
195 
196 static inline void filter(int16_t *output, ptrdiff_t out_stride,
197  int16_t *low, ptrdiff_t low_stride,
198  int16_t *high, ptrdiff_t high_stride,
199  int len, int clip)
200 {
201  int16_t tmp;
202  int i;
203 
204  for (i = 0; i < len; i++) {
205  if (i == 0) {
206  tmp = (11*low[0*low_stride] - 4*low[1*low_stride] + low[2*low_stride] + 4) >> 3;
207  output[(2*i+0)*out_stride] = (tmp + high[0*high_stride]) >> 1;
208  if (clip)
209  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
210 
211  tmp = ( 5*low[0*low_stride] + 4*low[1*low_stride] - low[2*low_stride] + 4) >> 3;
212  output[(2*i+1)*out_stride] = (tmp - high[0*high_stride]) >> 1;
213  if (clip)
214  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
215  } else if (i == len-1) {
216  tmp = ( 5*low[i*low_stride] + 4*low[(i-1)*low_stride] - low[(i-2)*low_stride] + 4) >> 3;
217  output[(2*i+0)*out_stride] = (tmp + high[i*high_stride]) >> 1;
218  if (clip)
219  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
220 
221  tmp = (11*low[i*low_stride] - 4*low[(i-1)*low_stride] + low[(i-2)*low_stride] + 4) >> 3;
222  output[(2*i+1)*out_stride] = (tmp - high[i*high_stride]) >> 1;
223  if (clip)
224  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
225  } else {
226  tmp = (low[(i-1)*low_stride] - low[(i+1)*low_stride] + 4) >> 3;
227  output[(2*i+0)*out_stride] = (tmp + low[i*low_stride] + high[i*high_stride]) >> 1;
228  if (clip)
229  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
230 
231  tmp = (low[(i+1)*low_stride] - low[(i-1)*low_stride] + 4) >> 3;
232  output[(2*i+1)*out_stride] = (tmp + low[i*low_stride] - high[i*high_stride]) >> 1;
233  if (clip)
234  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
235  }
236  }
237 }
238 
239 static inline void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high,
240  int width, int linesize, int plane)
241 {
242  int i;
243  int16_t even, odd;
244  for (i = 0; i < width; i++) {
245  even = (low[i] - high[i])/2;
246  odd = (low[i] + high[i])/2;
247  output[i] = av_clip_uintp2(even, 10);
248  output[i + linesize] = av_clip_uintp2(odd, 10);
249  }
250 }
251 static void horiz_filter(int16_t *output, int16_t *low, int16_t *high,
252  int width)
253 {
254  filter(output, 1, low, 1, high, 1, width, 0);
255 }
256 
257 static void horiz_filter_clip(int16_t *output, int16_t *low, int16_t *high,
258  int width, int clip)
259 {
260  filter(output, 1, low, 1, high, 1, width, clip);
261 }
262 
263 static void horiz_filter_clip_bayer(int16_t *output, int16_t *low, int16_t *high,
264  int width, int clip)
265 {
266  filter(output, 2, low, 1, high, 1, width, clip);
267 }
268 
269 static void vert_filter(int16_t *output, ptrdiff_t out_stride,
270  int16_t *low, ptrdiff_t low_stride,
271  int16_t *high, ptrdiff_t high_stride, int len)
272 {
273  filter(output, out_stride, low, low_stride, high, high_stride, len, 0);
274 }
275 
277 {
278  int i, j;
279 
280  for (i = 0; i < FF_ARRAY_ELEMS(s->plane); i++) {
281  av_freep(&s->plane[i].idwt_buf);
282  av_freep(&s->plane[i].idwt_tmp);
283 
284  for (j = 0; j < 9; j++)
285  s->plane[i].subband[j] = NULL;
286 
287  for (j = 0; j < 8; j++)
288  s->plane[i].l_h[j] = NULL;
289  }
290  s->a_height = 0;
291  s->a_width = 0;
292 }
293 
294 static int alloc_buffers(AVCodecContext *avctx)
295 {
296  CFHDContext *s = avctx->priv_data;
297  int i, j, ret, planes;
298  int chroma_x_shift, chroma_y_shift;
299  unsigned k;
300 
302  s->coded_width *= 2;
303  s->coded_height *= 2;
304  }
305 
306  if ((ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height)) < 0)
307  return ret;
308  avctx->pix_fmt = s->coded_format;
309 
311  &chroma_x_shift,
312  &chroma_y_shift)) < 0)
313  return ret;
316  planes = 4;
317  chroma_x_shift = 1;
318  chroma_y_shift = 1;
319  }
320 
321  for (i = 0; i < planes; i++) {
322  int w8, h8, w4, h4, w2, h2;
323  int width = i ? avctx->width >> chroma_x_shift : avctx->width;
324  int height = i ? avctx->height >> chroma_y_shift : avctx->height;
325  ptrdiff_t stride = FFALIGN(width / 8, 8) * 8;
326  if (chroma_y_shift)
327  height = FFALIGN(height / 8, 2) * 8;
328  s->plane[i].width = width;
329  s->plane[i].height = height;
330  s->plane[i].stride = stride;
331 
332  w8 = FFALIGN(s->plane[i].width / 8, 8);
333  h8 = height / 8;
334  w4 = w8 * 2;
335  h4 = h8 * 2;
336  w2 = w4 * 2;
337  h2 = h4 * 2;
338 
339  s->plane[i].idwt_buf =
340  av_mallocz_array(height * stride, sizeof(*s->plane[i].idwt_buf));
341  s->plane[i].idwt_tmp =
342  av_malloc_array(height * stride, sizeof(*s->plane[i].idwt_tmp));
343  if (!s->plane[i].idwt_buf || !s->plane[i].idwt_tmp)
344  return AVERROR(ENOMEM);
345 
346  s->plane[i].subband[0] = s->plane[i].idwt_buf;
347  s->plane[i].subband[1] = s->plane[i].idwt_buf + 2 * w8 * h8;
348  s->plane[i].subband[2] = s->plane[i].idwt_buf + 1 * w8 * h8;
349  s->plane[i].subband[3] = s->plane[i].idwt_buf + 3 * w8 * h8;
350  s->plane[i].subband[4] = s->plane[i].idwt_buf + 2 * w4 * h4;
351  s->plane[i].subband[5] = s->plane[i].idwt_buf + 1 * w4 * h4;
352  s->plane[i].subband[6] = s->plane[i].idwt_buf + 3 * w4 * h4;
353  s->plane[i].subband[7] = s->plane[i].idwt_buf + 2 * w2 * h2;
354  s->plane[i].subband[8] = s->plane[i].idwt_buf + 1 * w2 * h2;
355  s->plane[i].subband[9] = s->plane[i].idwt_buf + 3 * w2 * h2;
356 
357  for (j = 0; j < DWT_LEVELS; j++) {
358  for (k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
359  s->plane[i].band[j][k].a_width = w8 << j;
360  s->plane[i].band[j][k].a_height = h8 << j;
361  }
362  }
363 
364  /* ll2 and ll1 commented out because they are done in-place */
365  s->plane[i].l_h[0] = s->plane[i].idwt_tmp;
366  s->plane[i].l_h[1] = s->plane[i].idwt_tmp + 2 * w8 * h8;
367  // s->plane[i].l_h[2] = ll2;
368  s->plane[i].l_h[3] = s->plane[i].idwt_tmp;
369  s->plane[i].l_h[4] = s->plane[i].idwt_tmp + 2 * w4 * h4;
370  // s->plane[i].l_h[5] = ll1;
371  s->plane[i].l_h[6] = s->plane[i].idwt_tmp;
372  s->plane[i].l_h[7] = s->plane[i].idwt_tmp + 2 * w2 * h2;
373  }
374 
375  s->a_height = s->coded_height;
376  s->a_width = s->coded_width;
377  s->a_format = s->coded_format;
378 
379  return 0;
380 }
381 
382 static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
383  AVPacket *avpkt)
384 {
385  CFHDContext *s = avctx->priv_data;
386  GetByteContext gb;
387  ThreadFrame frame = { .f = data };
388  AVFrame *pic = data;
389  int ret = 0, i, j, planes, plane, got_buffer = 0;
390  int16_t *coeff_data;
391 
395 
396  bytestream2_init(&gb, avpkt->data, avpkt->size);
397 
398  while (bytestream2_get_bytes_left(&gb) > 4) {
399  /* Bit weird but implement the tag parsing as the spec says */
400  uint16_t tagu = bytestream2_get_be16(&gb);
401  int16_t tag = (int16_t)tagu;
402  int8_t tag8 = (int8_t)(tagu >> 8);
403  uint16_t abstag = abs(tag);
404  int8_t abs_tag8 = abs(tag8);
405  uint16_t data = bytestream2_get_be16(&gb);
406  if (abs_tag8 >= 0x60 && abs_tag8 <= 0x6f) {
407  av_log(avctx, AV_LOG_DEBUG, "large len %x\n", ((tagu & 0xff) << 16) | data);
408  } else if (tag == SampleFlags) {
409  av_log(avctx, AV_LOG_DEBUG, "Progressive?%"PRIu16"\n", data);
410  s->progressive = data & 0x0001;
411  } else if (tag == ImageWidth) {
412  av_log(avctx, AV_LOG_DEBUG, "Width %"PRIu16"\n", data);
413  s->coded_width = data;
414  } else if (tag == ImageHeight) {
415  av_log(avctx, AV_LOG_DEBUG, "Height %"PRIu16"\n", data);
416  s->coded_height = data;
417  } else if (tag == 101) {
418  av_log(avctx, AV_LOG_DEBUG, "Bits per component: %"PRIu16"\n", data);
419  if (data < 1 || data > 31) {
420  av_log(avctx, AV_LOG_ERROR, "Bits per component %d is invalid\n", data);
421  ret = AVERROR(EINVAL);
422  break;
423  }
424  s->bpc = data;
425  } else if (tag == ChannelCount) {
426  av_log(avctx, AV_LOG_DEBUG, "Channel Count: %"PRIu16"\n", data);
427  s->channel_cnt = data;
428  if (data > 4) {
429  av_log(avctx, AV_LOG_ERROR, "Channel Count of %"PRIu16" is unsupported\n", data);
430  ret = AVERROR_PATCHWELCOME;
431  break;
432  }
433  } else if (tag == SubbandCount) {
434  av_log(avctx, AV_LOG_DEBUG, "Subband Count: %"PRIu16"\n", data);
435  if (data != SUBBAND_COUNT) {
436  av_log(avctx, AV_LOG_ERROR, "Subband Count of %"PRIu16" is unsupported\n", data);
437  ret = AVERROR_PATCHWELCOME;
438  break;
439  }
440  } else if (tag == ChannelNumber) {
441  s->channel_num = data;
442  av_log(avctx, AV_LOG_DEBUG, "Channel number %"PRIu16"\n", data);
443  if (s->channel_num >= planes) {
444  av_log(avctx, AV_LOG_ERROR, "Invalid channel number\n");
445  ret = AVERROR(EINVAL);
446  break;
447  }
449  } else if (tag == SubbandNumber) {
450  if (s->subband_num != 0 && data == 1) // hack
451  s->level++;
452  av_log(avctx, AV_LOG_DEBUG, "Subband number %"PRIu16"\n", data);
453  s->subband_num = data;
454  if (s->level >= DWT_LEVELS) {
455  av_log(avctx, AV_LOG_ERROR, "Invalid level\n");
456  ret = AVERROR(EINVAL);
457  break;
458  }
459  if (s->subband_num > 3) {
460  av_log(avctx, AV_LOG_ERROR, "Invalid subband number\n");
461  ret = AVERROR(EINVAL);
462  break;
463  }
464  } else if (tag == 51) {
465  av_log(avctx, AV_LOG_DEBUG, "Subband number actual %"PRIu16"\n", data);
467  if (s->subband_num_actual >= 10) {
468  av_log(avctx, AV_LOG_ERROR, "Invalid subband number actual\n");
469  ret = AVERROR(EINVAL);
470  break;
471  }
472  } else if (tag == LowpassPrecision)
473  av_log(avctx, AV_LOG_DEBUG, "Lowpass precision bits: %"PRIu16"\n", data);
474  else if (tag == Quantization) {
475  s->quantisation = data;
476  av_log(avctx, AV_LOG_DEBUG, "Quantisation: %"PRIu16"\n", data);
477  } else if (tag == PrescaleShift) {
478  s->prescale_shift[0] = (data >> 0) & 0x7;
479  s->prescale_shift[1] = (data >> 3) & 0x7;
480  s->prescale_shift[2] = (data >> 6) & 0x7;
481  av_log(avctx, AV_LOG_DEBUG, "Prescale shift (VC-5): %x\n", data);
482  } else if (tag == 27) {
483  av_log(avctx, AV_LOG_DEBUG, "Lowpass width %"PRIu16"\n", data);
484  if (data < 3 || data > s->plane[s->channel_num].band[0][0].a_width) {
485  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass width\n");
486  ret = AVERROR(EINVAL);
487  break;
488  }
489  s->plane[s->channel_num].band[0][0].width = data;
490  s->plane[s->channel_num].band[0][0].stride = data;
491  } else if (tag == 28) {
492  av_log(avctx, AV_LOG_DEBUG, "Lowpass height %"PRIu16"\n", data);
493  if (data < 3 || data > s->plane[s->channel_num].band[0][0].a_height) {
494  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass height\n");
495  ret = AVERROR(EINVAL);
496  break;
497  }
498  s->plane[s->channel_num].band[0][0].height = data;
499  } else if (tag == 1)
500  av_log(avctx, AV_LOG_DEBUG, "Sample type? %"PRIu16"\n", data);
501  else if (tag == 10) {
502  if (data != 0) {
503  avpriv_report_missing_feature(avctx, "Transform type of %"PRIu16, data);
504  ret = AVERROR_PATCHWELCOME;
505  break;
506  }
507  av_log(avctx, AV_LOG_DEBUG, "Transform-type? %"PRIu16"\n", data);
508  } else if (abstag >= 0x4000 && abstag <= 0x40ff) {
509  if (abstag == 0x4001)
510  s->peak.level = 0;
511  av_log(avctx, AV_LOG_DEBUG, "Small chunk length %d %s\n", data * 4, tag < 0 ? "optional" : "required");
512  bytestream2_skipu(&gb, data * 4);
513  } else if (tag == 23) {
514  av_log(avctx, AV_LOG_DEBUG, "Skip frame\n");
515  avpriv_report_missing_feature(avctx, "Skip frame");
516  ret = AVERROR_PATCHWELCOME;
517  break;
518  } else if (tag == 2) {
519  av_log(avctx, AV_LOG_DEBUG, "tag=2 header - skipping %i tag/value pairs\n", data);
520  if (data > bytestream2_get_bytes_left(&gb) / 4) {
521  av_log(avctx, AV_LOG_ERROR, "too many tag/value pairs (%d)\n", data);
522  ret = AVERROR_INVALIDDATA;
523  break;
524  }
525  for (i = 0; i < data; i++) {
526  uint16_t tag2 = bytestream2_get_be16(&gb);
527  uint16_t val2 = bytestream2_get_be16(&gb);
528  av_log(avctx, AV_LOG_DEBUG, "Tag/Value = %x %x\n", tag2, val2);
529  }
530  } else if (tag == 41) {
531  av_log(avctx, AV_LOG_DEBUG, "Highpass width %i channel %i level %i subband %i\n", data, s->channel_num, s->level, s->subband_num);
532  if (data < 3) {
533  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width\n");
534  ret = AVERROR(EINVAL);
535  break;
536  }
537  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
538  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
539  } else if (tag == 42) {
540  av_log(avctx, AV_LOG_DEBUG, "Highpass height %i\n", data);
541  if (data < 3) {
542  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height\n");
543  ret = AVERROR(EINVAL);
544  break;
545  }
546  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
547  } else if (tag == 49) {
548  av_log(avctx, AV_LOG_DEBUG, "Highpass width2 %i\n", data);
549  if (data < 3) {
550  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width2\n");
551  ret = AVERROR(EINVAL);
552  break;
553  }
554  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
555  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
556  } else if (tag == 50) {
557  av_log(avctx, AV_LOG_DEBUG, "Highpass height2 %i\n", data);
558  if (data < 3) {
559  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height2\n");
560  ret = AVERROR(EINVAL);
561  break;
562  }
563  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
564  } else if (tag == 71) {
565  s->codebook = data;
566  av_log(avctx, AV_LOG_DEBUG, "Codebook %i\n", s->codebook);
567  } else if (tag == 72) {
568  s->codebook = data & 0xf;
569  s->difference_coding = (data >> 4) & 1;
570  av_log(avctx, AV_LOG_DEBUG, "Other codebook? %i\n", s->codebook);
571  } else if (tag == 70) {
572  av_log(avctx, AV_LOG_DEBUG, "Subsampling or bit-depth flag? %i\n", data);
573  if (!(data == 10 || data == 12)) {
574  av_log(avctx, AV_LOG_ERROR, "Invalid bits per channel\n");
575  ret = AVERROR(EINVAL);
576  break;
577  }
578  s->bpc = data;
579  } else if (tag == 84) {
580  av_log(avctx, AV_LOG_DEBUG, "Sample format? %i\n", data);
581  if (data == 1) {
583  } else if (data == 2) {
585  } else if (data == 3) {
587  } else if (data == 4) {
589  } else {
590  avpriv_report_missing_feature(avctx, "Sample format of %"PRIu16, data);
591  ret = AVERROR_PATCHWELCOME;
592  break;
593  }
594  planes = data == 2 ? 4 : av_pix_fmt_count_planes(s->coded_format);
595  } else if (tag == -85) {
596  av_log(avctx, AV_LOG_DEBUG, "Cropped height %"PRIu16"\n", data);
597  s->cropped_height = data;
598  } else if (tag == -75) {
599  s->peak.offset &= ~0xffff;
600  s->peak.offset |= (data & 0xffff);
601  s->peak.base = gb;
602  s->peak.level = 0;
603  } else if (tag == -76) {
604  s->peak.offset &= 0xffff;
605  s->peak.offset |= (data & 0xffffU)<<16;
606  s->peak.base = gb;
607  s->peak.level = 0;
608  } else if (tag == -74 && s->peak.offset) {
609  s->peak.level = data;
610  bytestream2_seek(&s->peak.base, s->peak.offset - 4, SEEK_CUR);
611  } else
612  av_log(avctx, AV_LOG_DEBUG, "Unknown tag %i data %x\n", tag, data);
613 
614  /* Some kind of end of header tag */
615  if (tag == 4 && data == 0x1a4a && s->coded_width && s->coded_height &&
617  if (s->a_width != s->coded_width || s->a_height != s->coded_height ||
618  s->a_format != s->coded_format) {
619  free_buffers(s);
620  if ((ret = alloc_buffers(avctx)) < 0) {
621  free_buffers(s);
622  return ret;
623  }
624  }
625  ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height);
626  if (ret < 0)
627  return ret;
628  if (s->cropped_height) {
629  unsigned height = s->cropped_height << (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16);
630  if (avctx->height < height)
631  return AVERROR_INVALIDDATA;
632  avctx->height = height;
633  }
634  frame.f->width =
635  frame.f->height = 0;
636 
637  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
638  return ret;
639 
640  s->coded_width = 0;
641  s->coded_height = 0;
643  got_buffer = 1;
644  }
645  coeff_data = s->plane[s->channel_num].subband[s->subband_num_actual];
646 
647  /* Lowpass coefficients */
648  if (tag == 4 && data == 0xf0f && s->a_width && s->a_height) {
649  int lowpass_height = s->plane[s->channel_num].band[0][0].height;
650  int lowpass_width = s->plane[s->channel_num].band[0][0].width;
651  int lowpass_a_height = s->plane[s->channel_num].band[0][0].a_height;
652  int lowpass_a_width = s->plane[s->channel_num].band[0][0].a_width;
653 
654  if (!got_buffer) {
655  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
656  ret = AVERROR(EINVAL);
657  goto end;
658  }
659 
660  if (lowpass_height > lowpass_a_height || lowpass_width > lowpass_a_width ||
661  lowpass_a_width * lowpass_a_height * sizeof(int16_t) > bytestream2_get_bytes_left(&gb)) {
662  av_log(avctx, AV_LOG_ERROR, "Too many lowpass coefficients\n");
663  ret = AVERROR(EINVAL);
664  goto end;
665  }
666 
667  av_log(avctx, AV_LOG_DEBUG, "Start of lowpass coeffs component %d height:%d, width:%d\n", s->channel_num, lowpass_height, lowpass_width);
668  for (i = 0; i < lowpass_height; i++) {
669  for (j = 0; j < lowpass_width; j++)
670  coeff_data[j] = bytestream2_get_be16u(&gb);
671 
672  coeff_data += lowpass_width;
673  }
674 
675  /* Align to mod-4 position to continue reading tags */
676  bytestream2_seek(&gb, bytestream2_tell(&gb) & 3, SEEK_CUR);
677 
678  /* Copy last line of coefficients if odd height */
679  if (lowpass_height & 1) {
680  memcpy(&coeff_data[lowpass_height * lowpass_width],
681  &coeff_data[(lowpass_height - 1) * lowpass_width],
682  lowpass_width * sizeof(*coeff_data));
683  }
684 
685  av_log(avctx, AV_LOG_DEBUG, "Lowpass coefficients %d\n", lowpass_width * lowpass_height);
686  }
687 
688  if (tag == 55 && s->subband_num_actual != 255 && s->a_width && s->a_height) {
689  int highpass_height = s->plane[s->channel_num].band[s->level][s->subband_num].height;
690  int highpass_width = s->plane[s->channel_num].band[s->level][s->subband_num].width;
691  int highpass_a_width = s->plane[s->channel_num].band[s->level][s->subband_num].a_width;
692  int highpass_a_height = s->plane[s->channel_num].band[s->level][s->subband_num].a_height;
693  int highpass_stride = s->plane[s->channel_num].band[s->level][s->subband_num].stride;
694  int expected;
695  int a_expected = highpass_a_height * highpass_a_width;
696  int level, run, coeff;
697  int count = 0, bytes;
698 
699  if (!got_buffer) {
700  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
701  ret = AVERROR(EINVAL);
702  goto end;
703  }
704 
705  if (highpass_height > highpass_a_height || highpass_width > highpass_a_width || a_expected < highpass_height * (uint64_t)highpass_stride) {
706  av_log(avctx, AV_LOG_ERROR, "Too many highpass coefficients\n");
707  ret = AVERROR(EINVAL);
708  goto end;
709  }
710  expected = highpass_height * highpass_stride;
711 
712  av_log(avctx, AV_LOG_DEBUG, "Start subband coeffs plane %i level %i codebook %i expected %i\n", s->channel_num, s->level, s->codebook, expected);
713 
715  {
716  OPEN_READER(re, &s->gb);
717  if (!s->codebook) {
718  while (1) {
719  UPDATE_CACHE(re, &s->gb);
720  GET_RL_VLC(level, run, re, &s->gb, s->table_9_rl_vlc,
721  VLC_BITS, 3, 1);
722 
723  /* escape */
724  if (level == 64)
725  break;
726 
727  count += run;
728 
729  if (count > expected)
730  break;
731 
732  coeff = dequant_and_decompand(level, s->quantisation, 0);
733  for (i = 0; i < run; i++)
734  *coeff_data++ = coeff;
735  }
736  } else {
737  while (1) {
738  UPDATE_CACHE(re, &s->gb);
739  GET_RL_VLC(level, run, re, &s->gb, s->table_18_rl_vlc,
740  VLC_BITS, 3, 1);
741 
742  /* escape */
743  if (level == 255 && run == 2)
744  break;
745 
746  count += run;
747 
748  if (count > expected)
749  break;
750 
751  coeff = dequant_and_decompand(level, s->quantisation, s->codebook);
752  for (i = 0; i < run; i++)
753  *coeff_data++ = coeff;
754  }
755  }
756  CLOSE_READER(re, &s->gb);
757  }
758 
759  if (count > expected) {
760  av_log(avctx, AV_LOG_ERROR, "Escape codeword not found, probably corrupt data\n");
761  ret = AVERROR(EINVAL);
762  goto end;
763  }
764  if (s->peak.level)
765  peak_table(coeff_data - count, &s->peak, count);
766  if (s->difference_coding)
767  difference_coding(s->plane[s->channel_num].subband[s->subband_num_actual], highpass_width, highpass_height);
768 
769  bytes = FFALIGN(AV_CEIL_RSHIFT(get_bits_count(&s->gb), 3), 4);
770  if (bytes > bytestream2_get_bytes_left(&gb)) {
771  av_log(avctx, AV_LOG_ERROR, "Bitstream overread error\n");
772  ret = AVERROR(EINVAL);
773  goto end;
774  } else
775  bytestream2_seek(&gb, bytes, SEEK_CUR);
776 
777  av_log(avctx, AV_LOG_DEBUG, "End subband coeffs %i extra %i\n", count, count - expected);
778  s->codebook = 0;
779 
780  /* Copy last line of coefficients if odd height */
781  if (highpass_height & 1) {
782  memcpy(&coeff_data[highpass_height * highpass_stride],
783  &coeff_data[(highpass_height - 1) * highpass_stride],
784  highpass_stride * sizeof(*coeff_data));
785  }
786  }
787  }
788 
789  if (!s->a_width || !s->a_height || s->a_format == AV_PIX_FMT_NONE ||
791  av_log(avctx, AV_LOG_ERROR, "Invalid dimensions\n");
792  ret = AVERROR(EINVAL);
793  goto end;
794  }
795 
796  if (!got_buffer) {
797  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
798  ret = AVERROR(EINVAL);
799  goto end;
800  }
801 
802  planes = av_pix_fmt_count_planes(avctx->pix_fmt);
803  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
804  if (!s->progressive)
805  return AVERROR_INVALIDDATA;
806  planes = 4;
807  }
808 
809  for (plane = 0; plane < planes && !ret; plane++) {
810  /* level 1 */
811  int lowpass_height = s->plane[plane].band[0][0].height;
812  int lowpass_width = s->plane[plane].band[0][0].width;
813  int highpass_stride = s->plane[plane].band[0][1].stride;
814  int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
815  ptrdiff_t dst_linesize;
816  int16_t *low, *high, *output, *dst;
817 
818  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
819  act_plane = 0;
820  dst_linesize = pic->linesize[act_plane];
821  } else {
822  dst_linesize = pic->linesize[act_plane] / 2;
823  }
824 
825  if (lowpass_height > s->plane[plane].band[0][0].a_height || lowpass_width > s->plane[plane].band[0][0].a_width ||
826  !highpass_stride || s->plane[plane].band[0][1].width > s->plane[plane].band[0][1].a_width) {
827  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
828  ret = AVERROR(EINVAL);
829  goto end;
830  }
831 
832  av_log(avctx, AV_LOG_DEBUG, "Decoding level 1 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
833 
834  low = s->plane[plane].subband[0];
835  high = s->plane[plane].subband[2];
836  output = s->plane[plane].l_h[0];
837  for (i = 0; i < lowpass_width; i++) {
838  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
839  low++;
840  high++;
841  output++;
842  }
843 
844  low = s->plane[plane].subband[1];
845  high = s->plane[plane].subband[3];
846  output = s->plane[plane].l_h[1];
847 
848  for (i = 0; i < lowpass_width; i++) {
849  // note the stride of "low" is highpass_stride
850  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
851  low++;
852  high++;
853  output++;
854  }
855 
856  low = s->plane[plane].l_h[0];
857  high = s->plane[plane].l_h[1];
858  output = s->plane[plane].subband[0];
859  for (i = 0; i < lowpass_height * 2; i++) {
860  horiz_filter(output, low, high, lowpass_width);
861  low += lowpass_width;
862  high += lowpass_width;
863  output += lowpass_width * 2;
864  }
865  if (s->bpc == 12) {
866  output = s->plane[plane].subband[0];
867  for (i = 0; i < lowpass_height * 2; i++) {
868  for (j = 0; j < lowpass_width * 2; j++)
869  output[j] *= 4;
870 
871  output += lowpass_width * 2;
872  }
873  }
874 
875  /* level 2 */
876  lowpass_height = s->plane[plane].band[1][1].height;
877  lowpass_width = s->plane[plane].band[1][1].width;
878  highpass_stride = s->plane[plane].band[1][1].stride;
879 
880  if (lowpass_height > s->plane[plane].band[1][1].a_height || lowpass_width > s->plane[plane].band[1][1].a_width ||
881  !highpass_stride || s->plane[plane].band[1][1].width > s->plane[plane].band[1][1].a_width) {
882  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
883  ret = AVERROR(EINVAL);
884  goto end;
885  }
886 
887  av_log(avctx, AV_LOG_DEBUG, "Level 2 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
888 
889  low = s->plane[plane].subband[0];
890  high = s->plane[plane].subband[5];
891  output = s->plane[plane].l_h[3];
892  for (i = 0; i < lowpass_width; i++) {
893  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
894  low++;
895  high++;
896  output++;
897  }
898 
899  low = s->plane[plane].subband[4];
900  high = s->plane[plane].subband[6];
901  output = s->plane[plane].l_h[4];
902  for (i = 0; i < lowpass_width; i++) {
903  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
904  low++;
905  high++;
906  output++;
907  }
908 
909  low = s->plane[plane].l_h[3];
910  high = s->plane[plane].l_h[4];
911  output = s->plane[plane].subband[0];
912  for (i = 0; i < lowpass_height * 2; i++) {
913  horiz_filter(output, low, high, lowpass_width);
914  low += lowpass_width;
915  high += lowpass_width;
916  output += lowpass_width * 2;
917  }
918 
919  output = s->plane[plane].subband[0];
920  for (i = 0; i < lowpass_height * 2; i++) {
921  for (j = 0; j < lowpass_width * 2; j++)
922  output[j] *= 4;
923 
924  output += lowpass_width * 2;
925  }
926 
927  /* level 3 */
928  lowpass_height = s->plane[plane].band[2][1].height;
929  lowpass_width = s->plane[plane].band[2][1].width;
930  highpass_stride = s->plane[plane].band[2][1].stride;
931 
932  if (lowpass_height > s->plane[plane].band[2][1].a_height || lowpass_width > s->plane[plane].band[2][1].a_width ||
933  !highpass_stride || s->plane[plane].band[2][1].width > s->plane[plane].band[2][1].a_width) {
934  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
935  ret = AVERROR(EINVAL);
936  goto end;
937  }
938 
939  av_log(avctx, AV_LOG_DEBUG, "Level 3 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
940  if (s->progressive) {
941  low = s->plane[plane].subband[0];
942  high = s->plane[plane].subband[8];
943  output = s->plane[plane].l_h[6];
944  for (i = 0; i < lowpass_width; i++) {
945  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
946  low++;
947  high++;
948  output++;
949  }
950 
951  low = s->plane[plane].subband[7];
952  high = s->plane[plane].subband[9];
953  output = s->plane[plane].l_h[7];
954  for (i = 0; i < lowpass_width; i++) {
955  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
956  low++;
957  high++;
958  output++;
959  }
960 
961  dst = (int16_t *)pic->data[act_plane];
962  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
963  if (plane & 1)
964  dst++;
965  if (plane > 1)
966  dst += pic->linesize[act_plane] >> 1;
967  }
968  low = s->plane[plane].l_h[6];
969  high = s->plane[plane].l_h[7];
970 
971  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16 &&
972  (lowpass_height * 2 > avctx->coded_height / 2 ||
973  lowpass_width * 2 > avctx->coded_width / 2 )
974  ) {
975  ret = AVERROR_INVALIDDATA;
976  goto end;
977  }
978 
979  for (i = 0; i < lowpass_height * 2; i++) {
980  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16)
981  horiz_filter_clip_bayer(dst, low, high, lowpass_width, s->bpc);
982  else
983  horiz_filter_clip(dst, low, high, lowpass_width, s->bpc);
984  if (avctx->pix_fmt == AV_PIX_FMT_GBRAP12 && act_plane == 3)
985  process_alpha(dst, lowpass_width * 2);
986  low += lowpass_width;
987  high += lowpass_width;
988  dst += dst_linesize;
989  }
990  } else {
991  av_log(avctx, AV_LOG_DEBUG, "interlaced frame ? %d", pic->interlaced_frame);
992  pic->interlaced_frame = 1;
993  low = s->plane[plane].subband[0];
994  high = s->plane[plane].subband[7];
995  output = s->plane[plane].l_h[6];
996  for (i = 0; i < lowpass_height; i++) {
997  horiz_filter(output, low, high, lowpass_width);
998  low += lowpass_width;
999  high += lowpass_width;
1000  output += lowpass_width * 2;
1001  }
1002 
1003  low = s->plane[plane].subband[8];
1004  high = s->plane[plane].subband[9];
1005  output = s->plane[plane].l_h[7];
1006  for (i = 0; i < lowpass_height; i++) {
1007  horiz_filter(output, low, high, lowpass_width);
1008  low += lowpass_width;
1009  high += lowpass_width;
1010  output += lowpass_width * 2;
1011  }
1012 
1013  dst = (int16_t *)pic->data[act_plane];
1014  low = s->plane[plane].l_h[6];
1015  high = s->plane[plane].l_h[7];
1016  for (i = 0; i < lowpass_height; i++) {
1017  interlaced_vertical_filter(dst, low, high, lowpass_width * 2, pic->linesize[act_plane]/2, act_plane);
1018  low += lowpass_width * 2;
1019  high += lowpass_width * 2;
1020  dst += pic->linesize[act_plane];
1021  }
1022  }
1023  }
1024 
1025 
1026  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16)
1027  process_bayer(pic);
1028 end:
1029  if (ret < 0)
1030  return ret;
1031 
1032  *got_frame = 1;
1033  return avpkt->size;
1034 }
1035 
1037 {
1038  CFHDContext *s = avctx->priv_data;
1039 
1040  free_buffers(s);
1041 
1042  ff_free_vlc(&s->vlc_9);
1043  ff_free_vlc(&s->vlc_18);
1044 
1045  return 0;
1046 }
1047 
1049  .name = "cfhd",
1050  .long_name = NULL_IF_CONFIG_SMALL("Cineform HD"),
1051  .type = AVMEDIA_TYPE_VIDEO,
1052  .id = AV_CODEC_ID_CFHD,
1053  .priv_data_size = sizeof(CFHDContext),
1054  .init = cfhd_init,
1055  .close = cfhd_close,
1056  .decode = cfhd_decode,
1057  .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1059 };
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
int channel_cnt
Definition: cfhd.h:100
#define NULL
Definition: coverity.c:32
int difference_coding
Definition: cfhd.h:109
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: cfhd.c:382
VLC vlc_18
Definition: cfhd.h:85
CFHDParam
Definition: cfhd.c:43
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
AVCodecContext * avctx
Definition: cfhd.h:79
if(ret< 0)
Definition: vf_mcdeint.c:279
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:714
static void peak_table(int16_t *band, Peak *peak, int length)
Definition: cfhd.c:131
float re
Definition: fft.c:82
misc image utilities
AVFrame * f
Definition: thread.h:35
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2589
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
const char * g
Definition: vf_curves.c:115
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define ALPHA_COMPAND_GAIN
Definition: cfhd.c:41
int a_height
Definition: cfhd.h:50
int level
Definition: cfhd.h:73
int size
Definition: packet.h:356
const char * b
Definition: vf_curves.c:116
#define VLC_BITS
Definition: asvdec.c:37
int cropped_height
Definition: cfhd.h:91
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:133
int16_t * idwt_tmp
Definition: cfhd.h:63
int a_width
Definition: cfhd.h:95
ptrdiff_t stride
Definition: cfhd.h:47
uint8_t run
Definition: svq3.c:208
int subband_num_actual
Definition: cfhd.h:112
static void horiz_filter_clip(int16_t *output, int16_t *low, int16_t *high, int width, int clip)
Definition: cfhd.c:257
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1757
int stride
Definition: mace.c:144
AVCodec.
Definition: codec.h:190
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
static void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high, int width, int linesize, int plane)
Definition: cfhd.c:239
Macro definitions for various function/variable attributes.
int width
Definition: cfhd.h:49
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, int clip)
Definition: cfhd.c:196
static void horiz_filter(int16_t *output, int16_t *low, int16_t *high, int width)
Definition: cfhd.c:251
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
#define av_cold
Definition: attributes.h:88
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
Multithreading support functions.
int16_t * idwt_buf
Definition: cfhd.h:62
int a_format
Definition: cfhd.h:97
static AVFrame * frame
const char data[16]
Definition: mxf.c:91
static int alloc_buffers(AVCodecContext *avctx)
Definition: cfhd.c:294
#define height
uint8_t * data
Definition: packet.h:355
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:219
const uint8_t * buffer
Definition: bytestream.h:34
uint32_t tag
Definition: movenc.c:1532
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
Definition: bytestream.h:170
static void horiz_filter_clip_bayer(int16_t *output, int16_t *low, int16_t *high, int width, int clip)
Definition: cfhd.c:263
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:447
#define FFALIGN(x, a)
Definition: macros.h:48
#define SUBBAND_COUNT
Definition: cfhd.h:34
#define av_log(a,...)
static int dequant_and_decompand(int level, int quantisation, int codebook)
Definition: cfhd.c:106
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:154
CFHD_RL_VLC_ELEM table_18_rl_vlc[4572]
Definition: cfhd.h:84
CFHD_RL_VLC_ELEM table_9_rl_vlc[2088]
Definition: cfhd.h:81
#define U(x)
Definition: vp56_arith.h:37
uint8_t prescale_shift[3]
Definition: cfhd.h:114
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:178
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
int width
Definition: frame.h:358
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define R
Definition: huffyuvdsp.h:34
#define AVERROR(e)
Definition: error.h:43
VLC vlc_9
Definition: cfhd.h:82
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:2577
#define B
Definition: huffyuvdsp.h:32
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * r
Definition: vf_curves.c:114
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int16_t * l_h[8]
Definition: cfhd.h:67
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:418
#define DWT_LEVELS
Definition: cfhd.h:42
const char * name
Name of the codec implementation.
Definition: codec.h:197
#define CLOSE_READER(name, gb)
Definition: get_bits.h:149
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
Definition: cfhd.h:72
int a_width
Definition: cfhd.h:48
static av_cold int cfhd_close(AVCodecContext *avctx)
Definition: cfhd.c:1036
static void init_frame_defaults(CFHDContext *s)
Definition: cfhd.c:85
static const struct @315 planes[]
SubBand band[DWT_LEVELS][4]
Definition: cfhd.h:69
GetByteContext base
Definition: cfhd.h:75
int subband_cnt
Definition: cfhd.h:101
#define width
#define FFSIGN(a)
Definition: common.h:73
int width
picture width / height.
Definition: avcodec.h:699
static void init_plane_defaults(CFHDContext *s)
Definition: cfhd.c:71
#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)
Definition: get_bits.h:738
uint16_t quantisation
Definition: cfhd.h:104
#define s(width, name)
Definition: cbs_vp9.c:257
static av_cold int cfhd_init(AVCodecContext *avctx)
Definition: cfhd.c:61
#define FF_ARRAY_ELEMS(a)
static void vert_filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len)
Definition: cfhd.c:269
int channel_num
Definition: cfhd.h:102
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:188
GetBitContext gb
Definition: cfhd.h:87
int wavelet_depth
Definition: cfhd.h:105
Libavcodec external API header.
#define ALPHA_COMPAND_DC_OFFSET
Definition: cfhd.c:40
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
#define abs(x)
Definition: cuda_runtime.h:35
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
static const int16_t alpha[]
Definition: ilbcdata.h:55
main external API structure.
Definition: avcodec.h:526
int codebook
Definition: cfhd.h:108
#define OPEN_READER(name, gb)
Definition: get_bits.h:138
static av_always_inline int even(uint64_t layout)
static void difference_coding(int16_t *band, int width, int height)
Definition: cfhd.c:119
int subband_num
Definition: cfhd.h:110
int coded_height
Definition: avcodec.h:714
int pshift
Definition: cfhd.h:106
enum AVPixelFormat coded_format
Definition: cfhd.h:92
AVCodec ff_cfhd_decoder
Definition: cfhd.c:1048
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:659
refcounted data buffer API
Peak peak
Definition: cfhd.h:116
int level
Definition: cfhd.h:111
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:414
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:398
static void process_bayer(AVFrame *frame)
Definition: cfhd.c:153
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
uint8_t level
Definition: svq3.c:209
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:422
int coded_width
Definition: cfhd.h:89
common internal api header.
common internal and external API header
static double clip(void *opaque, double val)
Clip value val in the minval - maxval range.
Definition: vf_lut.c:162
static void process_alpha(int16_t *alpha, int width)
Definition: cfhd.c:139
ptrdiff_t stride
Definition: cfhd.h:60
channel
Use these values when setting the channel map with ebur128_set_channel().
Definition: ebur128.h:39
int bpc
Definition: cfhd.h:99
void * priv_data
Definition: avcodec.h:553
int len
int a_height
Definition: cfhd.h:96
static void init_peak_table_defaults(CFHDContext *s)
Definition: cfhd.c:78
int height
Definition: cfhd.h:51
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:208
int width
Definition: cfhd.h:58
int offset
Definition: cfhd.h:74
static void free_buffers(CFHDContext *s)
Definition: cfhd.c:276
int height
Definition: frame.h:358
int ff_cfhd_init_vlcs(CFHDContext *s)
Definition: cfhddata.c:276
int progressive
Definition: cfhd.h:93
#define av_freep(p)
#define av_malloc_array(a, b)
Plane plane[4]
Definition: cfhd.h:115
int height
Definition: cfhd.h:59
uint8_t lowpass_precision
Definition: cfhd.h:103
int16_t * subband[SUBBAND_COUNT]
Definition: cfhd.h:66
This structure stores compressed data.
Definition: packet.h:332
void ff_free_vlc(VLC *vlc)
Definition: bitstream.c:359
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:50
for(j=16;j >0;--j)
int coded_height
Definition: cfhd.h:90
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:192
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
Definition: common.h:229
static uint8_t tmp[11]
Definition: aes_ctr.c:26