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cfhd.c
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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  s->peak.base = NULL;
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] = *(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 filter(int16_t *output, ptrdiff_t out_stride,
154  int16_t *low, ptrdiff_t low_stride,
155  int16_t *high, ptrdiff_t high_stride,
156  int len, int clip)
157 {
158  int16_t tmp;
159  int i;
160 
161  for (i = 0; i < len; i++) {
162  if (i == 0) {
163  tmp = (11*low[0*low_stride] - 4*low[1*low_stride] + low[2*low_stride] + 4) >> 3;
164  output[(2*i+0)*out_stride] = (tmp + high[0*high_stride]) >> 1;
165  if (clip)
166  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
167 
168  tmp = ( 5*low[0*low_stride] + 4*low[1*low_stride] - low[2*low_stride] + 4) >> 3;
169  output[(2*i+1)*out_stride] = (tmp - high[0*high_stride]) >> 1;
170  if (clip)
171  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
172  } else if (i == len-1) {
173  tmp = ( 5*low[i*low_stride] + 4*low[(i-1)*low_stride] - low[(i-2)*low_stride] + 4) >> 3;
174  output[(2*i+0)*out_stride] = (tmp + high[i*high_stride]) >> 1;
175  if (clip)
176  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
177 
178  tmp = (11*low[i*low_stride] - 4*low[(i-1)*low_stride] + low[(i-2)*low_stride] + 4) >> 3;
179  output[(2*i+1)*out_stride] = (tmp - high[i*high_stride]) >> 1;
180  if (clip)
181  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
182  } else {
183  tmp = (low[(i-1)*low_stride] - low[(i+1)*low_stride] + 4) >> 3;
184  output[(2*i+0)*out_stride] = (tmp + low[i*low_stride] + high[i*high_stride]) >> 1;
185  if (clip)
186  output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
187 
188  tmp = (low[(i+1)*low_stride] - low[(i-1)*low_stride] + 4) >> 3;
189  output[(2*i+1)*out_stride] = (tmp + low[i*low_stride] - high[i*high_stride]) >> 1;
190  if (clip)
191  output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
192  }
193  }
194 }
195 
196 static inline void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high,
197  int width, int linesize, int plane)
198 {
199  int i;
200  int16_t even, odd;
201  for (i = 0; i < width; i++) {
202  even = (low[i] - high[i])/2;
203  odd = (low[i] + high[i])/2;
204  output[i] = av_clip_uintp2(even, 10);
205  output[i + linesize] = av_clip_uintp2(odd, 10);
206  }
207 }
208 static void horiz_filter(int16_t *output, int16_t *low, int16_t *high,
209  int width)
210 {
211  filter(output, 1, low, 1, high, 1, width, 0);
212 }
213 
214 static void horiz_filter_clip(int16_t *output, int16_t *low, int16_t *high,
215  int width, int clip)
216 {
217  filter(output, 1, low, 1, high, 1, width, clip);
218 }
219 
220 static void vert_filter(int16_t *output, ptrdiff_t out_stride,
221  int16_t *low, ptrdiff_t low_stride,
222  int16_t *high, ptrdiff_t high_stride, int len)
223 {
224  filter(output, out_stride, low, low_stride, high, high_stride, len, 0);
225 }
226 
228 {
229  int i, j;
230 
231  for (i = 0; i < FF_ARRAY_ELEMS(s->plane); i++) {
232  av_freep(&s->plane[i].idwt_buf);
233  av_freep(&s->plane[i].idwt_tmp);
234 
235  for (j = 0; j < 9; j++)
236  s->plane[i].subband[j] = NULL;
237 
238  for (j = 0; j < 8; j++)
239  s->plane[i].l_h[j] = NULL;
240  }
241  s->a_height = 0;
242  s->a_width = 0;
243 }
244 
245 static int alloc_buffers(AVCodecContext *avctx)
246 {
247  CFHDContext *s = avctx->priv_data;
248  int i, j, ret, planes;
249  int chroma_x_shift, chroma_y_shift;
250  unsigned k;
251 
252  if ((ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height)) < 0)
253  return ret;
254  avctx->pix_fmt = s->coded_format;
255 
257  &chroma_x_shift,
258  &chroma_y_shift)) < 0)
259  return ret;
261 
262  for (i = 0; i < planes; i++) {
263  int w8, h8, w4, h4, w2, h2;
264  int width = i ? avctx->width >> chroma_x_shift : avctx->width;
265  int height = i ? avctx->height >> chroma_y_shift : avctx->height;
266  ptrdiff_t stride = FFALIGN(width / 8, 8) * 8;
267  if (chroma_y_shift)
268  height = FFALIGN(height / 8, 2) * 8;
269  s->plane[i].width = width;
270  s->plane[i].height = height;
271  s->plane[i].stride = stride;
272 
273  w8 = FFALIGN(s->plane[i].width / 8, 8);
274  h8 = height / 8;
275  w4 = w8 * 2;
276  h4 = h8 * 2;
277  w2 = w4 * 2;
278  h2 = h4 * 2;
279 
280  s->plane[i].idwt_buf =
281  av_mallocz_array(height * stride, sizeof(*s->plane[i].idwt_buf));
282  s->plane[i].idwt_tmp =
283  av_malloc_array(height * stride, sizeof(*s->plane[i].idwt_tmp));
284  if (!s->plane[i].idwt_buf || !s->plane[i].idwt_tmp)
285  return AVERROR(ENOMEM);
286 
287  s->plane[i].subband[0] = s->plane[i].idwt_buf;
288  s->plane[i].subband[1] = s->plane[i].idwt_buf + 2 * w8 * h8;
289  s->plane[i].subband[2] = s->plane[i].idwt_buf + 1 * w8 * h8;
290  s->plane[i].subband[3] = s->plane[i].idwt_buf + 3 * w8 * h8;
291  s->plane[i].subband[4] = s->plane[i].idwt_buf + 2 * w4 * h4;
292  s->plane[i].subband[5] = s->plane[i].idwt_buf + 1 * w4 * h4;
293  s->plane[i].subband[6] = s->plane[i].idwt_buf + 3 * w4 * h4;
294  s->plane[i].subband[7] = s->plane[i].idwt_buf + 2 * w2 * h2;
295  s->plane[i].subband[8] = s->plane[i].idwt_buf + 1 * w2 * h2;
296  s->plane[i].subband[9] = s->plane[i].idwt_buf + 3 * w2 * h2;
297 
298  for (j = 0; j < DWT_LEVELS; j++) {
299  for (k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
300  s->plane[i].band[j][k].a_width = w8 << j;
301  s->plane[i].band[j][k].a_height = h8 << j;
302  }
303  }
304 
305  /* ll2 and ll1 commented out because they are done in-place */
306  s->plane[i].l_h[0] = s->plane[i].idwt_tmp;
307  s->plane[i].l_h[1] = s->plane[i].idwt_tmp + 2 * w8 * h8;
308  // s->plane[i].l_h[2] = ll2;
309  s->plane[i].l_h[3] = s->plane[i].idwt_tmp;
310  s->plane[i].l_h[4] = s->plane[i].idwt_tmp + 2 * w4 * h4;
311  // s->plane[i].l_h[5] = ll1;
312  s->plane[i].l_h[6] = s->plane[i].idwt_tmp;
313  s->plane[i].l_h[7] = s->plane[i].idwt_tmp + 2 * w2 * h2;
314  }
315 
316  s->a_height = s->coded_height;
317  s->a_width = s->coded_width;
318  s->a_format = s->coded_format;
319 
320  return 0;
321 }
322 
323 static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
324  AVPacket *avpkt)
325 {
326  CFHDContext *s = avctx->priv_data;
327  GetByteContext gb;
328  ThreadFrame frame = { .f = data };
329  AVFrame *pic = data;
330  int ret = 0, i, j, planes, plane, got_buffer = 0;
331  int16_t *coeff_data;
332 
336 
337  bytestream2_init(&gb, avpkt->data, avpkt->size);
338 
339  while (bytestream2_get_bytes_left(&gb) > 4) {
340  /* Bit weird but implement the tag parsing as the spec says */
341  uint16_t tagu = bytestream2_get_be16(&gb);
342  int16_t tag = (int16_t)tagu;
343  int8_t tag8 = (int8_t)(tagu >> 8);
344  uint16_t abstag = abs(tag);
345  int8_t abs_tag8 = abs(tag8);
346  uint16_t data = bytestream2_get_be16(&gb);
347  if (abs_tag8 >= 0x60 && abs_tag8 <= 0x6f) {
348  av_log(avctx, AV_LOG_DEBUG, "large len %x\n", ((tagu & 0xff) << 16) | data);
349  } else if (tag == SampleFlags) {
350  av_log(avctx, AV_LOG_DEBUG, "Progressive?%"PRIu16"\n", data);
351  s->progressive = data & 0x0001;
352  } else if (tag == ImageWidth) {
353  av_log(avctx, AV_LOG_DEBUG, "Width %"PRIu16"\n", data);
354  s->coded_width = data;
355  } else if (tag == ImageHeight) {
356  av_log(avctx, AV_LOG_DEBUG, "Height %"PRIu16"\n", data);
357  s->coded_height = data;
358  } else if (tag == 101) {
359  av_log(avctx, AV_LOG_DEBUG, "Bits per component: %"PRIu16"\n", data);
360  if (data < 1 || data > 31) {
361  av_log(avctx, AV_LOG_ERROR, "Bits per component %d is invalid\n", data);
362  ret = AVERROR(EINVAL);
363  break;
364  }
365  s->bpc = data;
366  } else if (tag == ChannelCount) {
367  av_log(avctx, AV_LOG_DEBUG, "Channel Count: %"PRIu16"\n", data);
368  s->channel_cnt = data;
369  if (data > 4) {
370  av_log(avctx, AV_LOG_ERROR, "Channel Count of %"PRIu16" is unsupported\n", data);
371  ret = AVERROR_PATCHWELCOME;
372  break;
373  }
374  } else if (tag == SubbandCount) {
375  av_log(avctx, AV_LOG_DEBUG, "Subband Count: %"PRIu16"\n", data);
376  if (data != SUBBAND_COUNT) {
377  av_log(avctx, AV_LOG_ERROR, "Subband Count of %"PRIu16" is unsupported\n", data);
378  ret = AVERROR_PATCHWELCOME;
379  break;
380  }
381  } else if (tag == ChannelNumber) {
382  s->channel_num = data;
383  av_log(avctx, AV_LOG_DEBUG, "Channel number %"PRIu16"\n", data);
384  if (s->channel_num >= planes) {
385  av_log(avctx, AV_LOG_ERROR, "Invalid channel number\n");
386  ret = AVERROR(EINVAL);
387  break;
388  }
390  } else if (tag == SubbandNumber) {
391  if (s->subband_num != 0 && data == 1) // hack
392  s->level++;
393  av_log(avctx, AV_LOG_DEBUG, "Subband number %"PRIu16"\n", data);
394  s->subband_num = data;
395  if (s->level >= DWT_LEVELS) {
396  av_log(avctx, AV_LOG_ERROR, "Invalid level\n");
397  ret = AVERROR(EINVAL);
398  break;
399  }
400  if (s->subband_num > 3) {
401  av_log(avctx, AV_LOG_ERROR, "Invalid subband number\n");
402  ret = AVERROR(EINVAL);
403  break;
404  }
405  } else if (tag == 51) {
406  av_log(avctx, AV_LOG_DEBUG, "Subband number actual %"PRIu16"\n", data);
408  if (s->subband_num_actual >= 10) {
409  av_log(avctx, AV_LOG_ERROR, "Invalid subband number actual\n");
410  ret = AVERROR(EINVAL);
411  break;
412  }
413  } else if (tag == LowpassPrecision)
414  av_log(avctx, AV_LOG_DEBUG, "Lowpass precision bits: %"PRIu16"\n", data);
415  else if (tag == Quantization) {
416  s->quantisation = data;
417  av_log(avctx, AV_LOG_DEBUG, "Quantisation: %"PRIu16"\n", data);
418  } else if (tag == PrescaleShift) {
419  s->prescale_shift[0] = (data >> 0) & 0x7;
420  s->prescale_shift[1] = (data >> 3) & 0x7;
421  s->prescale_shift[2] = (data >> 6) & 0x7;
422  av_log(avctx, AV_LOG_DEBUG, "Prescale shift (VC-5): %x\n", data);
423  } else if (tag == 27) {
424  av_log(avctx, AV_LOG_DEBUG, "Lowpass width %"PRIu16"\n", data);
425  if (data < 3 || data > s->plane[s->channel_num].band[0][0].a_width) {
426  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass width\n");
427  ret = AVERROR(EINVAL);
428  break;
429  }
430  s->plane[s->channel_num].band[0][0].width = data;
431  s->plane[s->channel_num].band[0][0].stride = data;
432  } else if (tag == 28) {
433  av_log(avctx, AV_LOG_DEBUG, "Lowpass height %"PRIu16"\n", data);
434  if (data < 3 || data > s->plane[s->channel_num].band[0][0].a_height) {
435  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass height\n");
436  ret = AVERROR(EINVAL);
437  break;
438  }
439  s->plane[s->channel_num].band[0][0].height = data;
440  } else if (tag == 1)
441  av_log(avctx, AV_LOG_DEBUG, "Sample type? %"PRIu16"\n", data);
442  else if (tag == 10) {
443  if (data != 0) {
444  avpriv_report_missing_feature(avctx, "Transform type of %"PRIu16, data);
445  ret = AVERROR_PATCHWELCOME;
446  break;
447  }
448  av_log(avctx, AV_LOG_DEBUG, "Transform-type? %"PRIu16"\n", data);
449  } else if (abstag >= 0x4000 && abstag <= 0x40ff) {
450  if (abstag == 0x4001)
451  s->peak.level = 0;
452  av_log(avctx, AV_LOG_DEBUG, "Small chunk length %d %s\n", data * 4, tag < 0 ? "optional" : "required");
453  bytestream2_skipu(&gb, data * 4);
454  } else if (tag == 23) {
455  av_log(avctx, AV_LOG_DEBUG, "Skip frame\n");
456  avpriv_report_missing_feature(avctx, "Skip frame");
457  ret = AVERROR_PATCHWELCOME;
458  break;
459  } else if (tag == 2) {
460  av_log(avctx, AV_LOG_DEBUG, "tag=2 header - skipping %i tag/value pairs\n", data);
461  if (data > bytestream2_get_bytes_left(&gb) / 4) {
462  av_log(avctx, AV_LOG_ERROR, "too many tag/value pairs (%d)\n", data);
463  ret = AVERROR_INVALIDDATA;
464  break;
465  }
466  for (i = 0; i < data; i++) {
467  uint16_t tag2 = bytestream2_get_be16(&gb);
468  uint16_t val2 = bytestream2_get_be16(&gb);
469  av_log(avctx, AV_LOG_DEBUG, "Tag/Value = %x %x\n", tag2, val2);
470  }
471  } else if (tag == 41) {
472  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);
473  if (data < 3) {
474  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width\n");
475  ret = AVERROR(EINVAL);
476  break;
477  }
478  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
479  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
480  } else if (tag == 42) {
481  av_log(avctx, AV_LOG_DEBUG, "Highpass height %i\n", data);
482  if (data < 3) {
483  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height\n");
484  ret = AVERROR(EINVAL);
485  break;
486  }
487  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
488  } else if (tag == 49) {
489  av_log(avctx, AV_LOG_DEBUG, "Highpass width2 %i\n", data);
490  if (data < 3) {
491  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width2\n");
492  ret = AVERROR(EINVAL);
493  break;
494  }
495  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
496  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
497  } else if (tag == 50) {
498  av_log(avctx, AV_LOG_DEBUG, "Highpass height2 %i\n", data);
499  if (data < 3) {
500  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height2\n");
501  ret = AVERROR(EINVAL);
502  break;
503  }
504  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
505  } else if (tag == 71) {
506  s->codebook = data;
507  av_log(avctx, AV_LOG_DEBUG, "Codebook %i\n", s->codebook);
508  } else if (tag == 72) {
509  s->codebook = data & 0xf;
510  s->difference_coding = (data >> 4) & 1;
511  av_log(avctx, AV_LOG_DEBUG, "Other codebook? %i\n", s->codebook);
512  } else if (tag == 70) {
513  av_log(avctx, AV_LOG_DEBUG, "Subsampling or bit-depth flag? %i\n", data);
514  if (!(data == 10 || data == 12)) {
515  av_log(avctx, AV_LOG_ERROR, "Invalid bits per channel\n");
516  ret = AVERROR(EINVAL);
517  break;
518  }
519  s->bpc = data;
520  } else if (tag == 84) {
521  av_log(avctx, AV_LOG_DEBUG, "Sample format? %i\n", data);
522  if (data == 1)
524  else if (data == 3)
526  else if (data == 4)
528  else {
529  avpriv_report_missing_feature(avctx, "Sample format of %"PRIu16, data);
530  ret = AVERROR_PATCHWELCOME;
531  break;
532  }
534  } else if (tag == -85) {
535  av_log(avctx, AV_LOG_DEBUG, "Cropped height %"PRIu16"\n", data);
536  s->cropped_height = data;
537  } else if (tag == -75) {
538  s->peak.offset &= ~0xffff;
539  s->peak.offset |= (data & 0xffff);
540  s->peak.base = (int16_t *) gb.buffer;
541  s->peak.level = 0;
542  } else if (tag == -76) {
543  s->peak.offset &= 0xffff;
544  s->peak.offset |= (data & 0xffff)<<16;
545  s->peak.base = (int16_t *) gb.buffer;
546  s->peak.level = 0;
547  } else if (tag == -74 && s->peak.offset) {
548  s->peak.level = data;
549  s->peak.base += s->peak.offset / 2 - 2;
550  } else
551  av_log(avctx, AV_LOG_DEBUG, "Unknown tag %i data %x\n", tag, data);
552 
553  /* Some kind of end of header tag */
554  if (tag == 4 && data == 0x1a4a && s->coded_width && s->coded_height &&
556  if (s->a_width != s->coded_width || s->a_height != s->coded_height ||
557  s->a_format != s->coded_format) {
558  free_buffers(s);
559  if ((ret = alloc_buffers(avctx)) < 0) {
560  free_buffers(s);
561  return ret;
562  }
563  }
564  ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height);
565  if (ret < 0)
566  return ret;
567  if (s->cropped_height)
568  avctx->height = s->cropped_height;
569  frame.f->width =
570  frame.f->height = 0;
571 
572  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
573  return ret;
574 
575  s->coded_width = 0;
576  s->coded_height = 0;
578  got_buffer = 1;
579  }
580  coeff_data = s->plane[s->channel_num].subband[s->subband_num_actual];
581 
582  /* Lowpass coefficients */
583  if (tag == 4 && data == 0xf0f && s->a_width && s->a_height) {
584  int lowpass_height = s->plane[s->channel_num].band[0][0].height;
585  int lowpass_width = s->plane[s->channel_num].band[0][0].width;
586  int lowpass_a_height = s->plane[s->channel_num].band[0][0].a_height;
587  int lowpass_a_width = s->plane[s->channel_num].band[0][0].a_width;
588 
589  if (!got_buffer) {
590  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
591  ret = AVERROR(EINVAL);
592  goto end;
593  }
594 
595  if (lowpass_height > lowpass_a_height || lowpass_width > lowpass_a_width ||
596  lowpass_a_width * lowpass_a_height * sizeof(int16_t) > bytestream2_get_bytes_left(&gb)) {
597  av_log(avctx, AV_LOG_ERROR, "Too many lowpass coefficients\n");
598  ret = AVERROR(EINVAL);
599  goto end;
600  }
601 
602  av_log(avctx, AV_LOG_DEBUG, "Start of lowpass coeffs component %d height:%d, width:%d\n", s->channel_num, lowpass_height, lowpass_width);
603  for (i = 0; i < lowpass_height; i++) {
604  for (j = 0; j < lowpass_width; j++)
605  coeff_data[j] = bytestream2_get_be16u(&gb);
606 
607  coeff_data += lowpass_width;
608  }
609 
610  /* Align to mod-4 position to continue reading tags */
611  bytestream2_seek(&gb, bytestream2_tell(&gb) & 3, SEEK_CUR);
612 
613  /* Copy last line of coefficients if odd height */
614  if (lowpass_height & 1) {
615  memcpy(&coeff_data[lowpass_height * lowpass_width],
616  &coeff_data[(lowpass_height - 1) * lowpass_width],
617  lowpass_width * sizeof(*coeff_data));
618  }
619 
620  av_log(avctx, AV_LOG_DEBUG, "Lowpass coefficients %d\n", lowpass_width * lowpass_height);
621  }
622 
623  if (tag == 55 && s->subband_num_actual != 255 && s->a_width && s->a_height) {
624  int highpass_height = s->plane[s->channel_num].band[s->level][s->subband_num].height;
625  int highpass_width = s->plane[s->channel_num].band[s->level][s->subband_num].width;
626  int highpass_a_width = s->plane[s->channel_num].band[s->level][s->subband_num].a_width;
627  int highpass_a_height = s->plane[s->channel_num].band[s->level][s->subband_num].a_height;
628  int highpass_stride = s->plane[s->channel_num].band[s->level][s->subband_num].stride;
629  int expected;
630  int a_expected = highpass_a_height * highpass_a_width;
631  int level, run, coeff;
632  int count = 0, bytes;
633 
634  if (!got_buffer) {
635  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
636  ret = AVERROR(EINVAL);
637  goto end;
638  }
639 
640  if (highpass_height > highpass_a_height || highpass_width > highpass_a_width || a_expected < highpass_height * (uint64_t)highpass_stride) {
641  av_log(avctx, AV_LOG_ERROR, "Too many highpass coefficients\n");
642  ret = AVERROR(EINVAL);
643  goto end;
644  }
645  expected = highpass_height * highpass_stride;
646 
647  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);
648 
650  {
651  OPEN_READER(re, &s->gb);
652  if (!s->codebook) {
653  while (1) {
654  UPDATE_CACHE(re, &s->gb);
655  GET_RL_VLC(level, run, re, &s->gb, s->table_9_rl_vlc,
656  VLC_BITS, 3, 1);
657 
658  /* escape */
659  if (level == 64)
660  break;
661 
662  count += run;
663 
664  if (count > expected)
665  break;
666 
667  coeff = dequant_and_decompand(level, s->quantisation, 0);
668  for (i = 0; i < run; i++)
669  *coeff_data++ = coeff;
670  }
671  if (s->peak.level)
672  peak_table(coeff_data - expected, &s->peak, expected);
673  if (s->difference_coding)
674  difference_coding(s->plane[s->channel_num].subband[s->subband_num_actual], highpass_width, highpass_height);
675 
676  } else {
677  while (1) {
678  UPDATE_CACHE(re, &s->gb);
679  GET_RL_VLC(level, run, re, &s->gb, s->table_18_rl_vlc,
680  VLC_BITS, 3, 1);
681 
682  /* escape */
683  if (level == 255 && run == 2)
684  break;
685 
686  count += run;
687 
688  if (count > expected)
689  break;
690 
691  coeff = dequant_and_decompand(level, s->quantisation, s->codebook);
692  for (i = 0; i < run; i++)
693  *coeff_data++ = coeff;
694  }
695  if (s->peak.level)
696  peak_table(coeff_data - expected, &s->peak, expected);
697  if (s->difference_coding)
698  difference_coding(s->plane[s->channel_num].subband[s->subband_num_actual], highpass_width, highpass_height);
699 
700  }
701  CLOSE_READER(re, &s->gb);
702  }
703 
704  if (count > expected) {
705  av_log(avctx, AV_LOG_ERROR, "Escape codeword not found, probably corrupt data\n");
706  ret = AVERROR(EINVAL);
707  goto end;
708  }
709 
710  bytes = FFALIGN(AV_CEIL_RSHIFT(get_bits_count(&s->gb), 3), 4);
711  if (bytes > bytestream2_get_bytes_left(&gb)) {
712  av_log(avctx, AV_LOG_ERROR, "Bitstream overread error\n");
713  ret = AVERROR(EINVAL);
714  goto end;
715  } else
716  bytestream2_seek(&gb, bytes, SEEK_CUR);
717 
718  av_log(avctx, AV_LOG_DEBUG, "End subband coeffs %i extra %i\n", count, count - expected);
719  s->codebook = 0;
720 
721  /* Copy last line of coefficients if odd height */
722  if (highpass_height & 1) {
723  memcpy(&coeff_data[highpass_height * highpass_stride],
724  &coeff_data[(highpass_height - 1) * highpass_stride],
725  highpass_stride * sizeof(*coeff_data));
726  }
727  }
728  }
729 
730  if (!s->a_width || !s->a_height || s->a_format == AV_PIX_FMT_NONE ||
732  av_log(avctx, AV_LOG_ERROR, "Invalid dimensions\n");
733  ret = AVERROR(EINVAL);
734  goto end;
735  }
736 
737  if (!got_buffer) {
738  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
739  ret = AVERROR(EINVAL);
740  goto end;
741  }
742 
743  planes = av_pix_fmt_count_planes(avctx->pix_fmt);
744  for (plane = 0; plane < planes && !ret; plane++) {
745  /* level 1 */
746  int lowpass_height = s->plane[plane].band[0][0].height;
747  int lowpass_width = s->plane[plane].band[0][0].width;
748  int highpass_stride = s->plane[plane].band[0][1].stride;
749  int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
750  int16_t *low, *high, *output, *dst;
751 
752  if (lowpass_height > s->plane[plane].band[0][0].a_height || lowpass_width > s->plane[plane].band[0][0].a_width ||
753  !highpass_stride || s->plane[plane].band[0][1].width > s->plane[plane].band[0][1].a_width) {
754  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
755  ret = AVERROR(EINVAL);
756  goto end;
757  }
758 
759  av_log(avctx, AV_LOG_DEBUG, "Decoding level 1 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
760 
761  low = s->plane[plane].subband[0];
762  high = s->plane[plane].subband[2];
763  output = s->plane[plane].l_h[0];
764  for (i = 0; i < lowpass_width; i++) {
765  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
766  low++;
767  high++;
768  output++;
769  }
770 
771  low = s->plane[plane].subband[1];
772  high = s->plane[plane].subband[3];
773  output = s->plane[plane].l_h[1];
774 
775  for (i = 0; i < lowpass_width; i++) {
776  // note the stride of "low" is highpass_stride
777  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
778  low++;
779  high++;
780  output++;
781  }
782 
783  low = s->plane[plane].l_h[0];
784  high = s->plane[plane].l_h[1];
785  output = s->plane[plane].subband[0];
786  for (i = 0; i < lowpass_height * 2; i++) {
787  horiz_filter(output, low, high, lowpass_width);
788  low += lowpass_width;
789  high += lowpass_width;
790  output += lowpass_width * 2;
791  }
792  if (s->bpc == 12) {
793  output = s->plane[plane].subband[0];
794  for (i = 0; i < lowpass_height * 2; i++) {
795  for (j = 0; j < lowpass_width * 2; j++)
796  output[j] *= 4;
797 
798  output += lowpass_width * 2;
799  }
800  }
801 
802  /* level 2 */
803  lowpass_height = s->plane[plane].band[1][1].height;
804  lowpass_width = s->plane[plane].band[1][1].width;
805  highpass_stride = s->plane[plane].band[1][1].stride;
806 
807  if (lowpass_height > s->plane[plane].band[1][1].a_height || lowpass_width > s->plane[plane].band[1][1].a_width ||
808  !highpass_stride || s->plane[plane].band[1][1].width > s->plane[plane].band[1][1].a_width) {
809  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
810  ret = AVERROR(EINVAL);
811  goto end;
812  }
813 
814  av_log(avctx, AV_LOG_DEBUG, "Level 2 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
815 
816  low = s->plane[plane].subband[0];
817  high = s->plane[plane].subband[5];
818  output = s->plane[plane].l_h[3];
819  for (i = 0; i < lowpass_width; i++) {
820  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
821  low++;
822  high++;
823  output++;
824  }
825 
826  low = s->plane[plane].subband[4];
827  high = s->plane[plane].subband[6];
828  output = s->plane[plane].l_h[4];
829  for (i = 0; i < lowpass_width; i++) {
830  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
831  low++;
832  high++;
833  output++;
834  }
835 
836  low = s->plane[plane].l_h[3];
837  high = s->plane[plane].l_h[4];
838  output = s->plane[plane].subband[0];
839  for (i = 0; i < lowpass_height * 2; i++) {
840  horiz_filter(output, low, high, lowpass_width);
841  low += lowpass_width;
842  high += lowpass_width;
843  output += lowpass_width * 2;
844  }
845 
846  output = s->plane[plane].subband[0];
847  for (i = 0; i < lowpass_height * 2; i++) {
848  for (j = 0; j < lowpass_width * 2; j++)
849  output[j] *= 4;
850 
851  output += lowpass_width * 2;
852  }
853 
854  /* level 3 */
855  lowpass_height = s->plane[plane].band[2][1].height;
856  lowpass_width = s->plane[plane].band[2][1].width;
857  highpass_stride = s->plane[plane].band[2][1].stride;
858 
859  if (lowpass_height > s->plane[plane].band[2][1].a_height || lowpass_width > s->plane[plane].band[2][1].a_width ||
860  !highpass_stride || s->plane[plane].band[2][1].width > s->plane[plane].band[2][1].a_width) {
861  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
862  ret = AVERROR(EINVAL);
863  goto end;
864  }
865 
866  av_log(avctx, AV_LOG_DEBUG, "Level 3 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
867  if (s->progressive) {
868  low = s->plane[plane].subband[0];
869  high = s->plane[plane].subband[8];
870  output = s->plane[plane].l_h[6];
871  for (i = 0; i < lowpass_width; i++) {
872  vert_filter(output, lowpass_width, low, lowpass_width, high, highpass_stride, lowpass_height);
873  low++;
874  high++;
875  output++;
876  }
877 
878  low = s->plane[plane].subband[7];
879  high = s->plane[plane].subband[9];
880  output = s->plane[plane].l_h[7];
881  for (i = 0; i < lowpass_width; i++) {
882  vert_filter(output, lowpass_width, low, highpass_stride, high, highpass_stride, lowpass_height);
883  low++;
884  high++;
885  output++;
886  }
887 
888  dst = (int16_t *)pic->data[act_plane];
889  low = s->plane[plane].l_h[6];
890  high = s->plane[plane].l_h[7];
891  for (i = 0; i < lowpass_height * 2; i++) {
892  horiz_filter_clip(dst, low, high, lowpass_width, s->bpc);
893  low += lowpass_width;
894  high += lowpass_width;
895  dst += pic->linesize[act_plane] / 2;
896  }
897  } else {
898  av_log(avctx, AV_LOG_DEBUG, "interlaced frame ? %d", pic->interlaced_frame);
899  pic->interlaced_frame = 1;
900  low = s->plane[plane].subband[0];
901  high = s->plane[plane].subband[7];
902  output = s->plane[plane].l_h[6];
903  for (i = 0; i < lowpass_height; i++) {
904  horiz_filter(output, low, high, lowpass_width);
905  low += lowpass_width;
906  high += lowpass_width;
907  output += lowpass_width * 2;
908  }
909 
910  low = s->plane[plane].subband[8];
911  high = s->plane[plane].subband[9];
912  output = s->plane[plane].l_h[7];
913  for (i = 0; i < lowpass_height; i++) {
914  horiz_filter(output, low, high, lowpass_width);
915  low += lowpass_width;
916  high += lowpass_width;
917  output += lowpass_width * 2;
918  }
919 
920  dst = (int16_t *)pic->data[act_plane];
921  low = s->plane[plane].l_h[6];
922  high = s->plane[plane].l_h[7];
923  for (i = 0; i < lowpass_height; i++) {
924  interlaced_vertical_filter(dst, low, high, lowpass_width * 2, pic->linesize[act_plane]/2, act_plane);
925  low += lowpass_width * 2;
926  high += lowpass_width * 2;
927  dst += pic->linesize[act_plane];
928  }
929  }
930  }
931 
932 
933 end:
934  if (ret < 0)
935  return ret;
936 
937  *got_frame = 1;
938  return avpkt->size;
939 }
940 
942 {
943  CFHDContext *s = avctx->priv_data;
944 
945  free_buffers(s);
946 
947  if (!avctx->internal->is_copy) {
948  ff_free_vlc(&s->vlc_9);
949  ff_free_vlc(&s->vlc_18);
950  }
951 
952  return 0;
953 }
954 
956  .name = "cfhd",
957  .long_name = NULL_IF_CONFIG_SMALL("Cineform HD"),
958  .type = AVMEDIA_TYPE_VIDEO,
959  .id = AV_CODEC_ID_CFHD,
960  .priv_data_size = sizeof(CFHDContext),
961  .init = cfhd_init,
962  .close = cfhd_close,
963  .decode = cfhd_decode,
966 };
#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 plane
Definition: avisynth_c.h:422
int channel_cnt
Definition: cfhd.h:99
#define NULL
Definition: coverity.c:32
int difference_coding
Definition: cfhd.h:108
#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:323
static float alpha(float a)
VLC vlc_18
Definition: cfhd.h:84
CFHDParam
Definition: cfhd.c:43
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVCodecContext * avctx
Definition: cfhd.h:78
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
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:2424
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
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:49
int level
Definition: cfhd.h:72
int size
Definition: avcodec.h:1432
#define VLC_BITS
Definition: asvdec.c:37
int cropped_height
Definition: cfhd.h:90
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1728
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:62
int a_width
Definition: cfhd.h:94
ptrdiff_t stride
Definition: cfhd.h:46
uint8_t run
Definition: svq3.c:206
int subband_num_actual
Definition: cfhd.h:111
static void horiz_filter_clip(int16_t *output, int16_t *low, int16_t *high, int width, int clip)
Definition: cfhd.c:214
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2742
AVCodec.
Definition: avcodec.h:3409
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
static void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high, int width, int linesize, int plane)
Definition: cfhd.c:196
Macro definitions for various function/variable attributes.
int width
Definition: cfhd.h:48
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:153
static void horiz_filter(int16_t *output, int16_t *low, int16_t *high, int width)
Definition: cfhd.c:208
#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:82
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
Multithreading support functions.
int16_t * idwt_buf
Definition: cfhd.h:61
int a_format
Definition: cfhd.h:96
static AVFrame * frame
static int alloc_buffers(AVCodecContext *avctx)
Definition: cfhd.c:245
#define height
uint8_t * data
Definition: avcodec.h:1431
static const struct @283 planes[]
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:200
const uint8_t * buffer
Definition: bytestream.h:34
uint32_t tag
Definition: movenc.c:1466
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
Definition: bytestream.h:170
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:365
#define FFALIGN(x, a)
Definition: macros.h:48
#define SUBBAND_COUNT
Definition: cfhd.h:33
#define av_log(a,...)
static int dequant_and_decompand(int level, int quantisation, int codebook)
Definition: cfhd.c:106
CFHD_RL_VLC_ELEM table_18_rl_vlc[4572]
Definition: cfhd.h:83
CFHD_RL_VLC_ELEM table_9_rl_vlc[2088]
Definition: cfhd.h:80
uint8_t prescale_shift[3]
Definition: cfhd.h:113
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:161
int width
Definition: frame.h:276
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int is_copy
Whether the parent AVCodecContext is a copy of the context which had init() called on it...
Definition: internal.h:136
#define AVERROR(e)
Definition: error.h:43
VLC vlc_9
Definition: cfhd.h:81
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:2412
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int16_t * l_h[8]
Definition: cfhd.h:66
static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:154
uint16_t width
Definition: gdv.c:47
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:393
#define DWT_LEVELS
Definition: cfhd.h:41
GLsizei GLsizei * length
Definition: opengl_enc.c:115
const char * name
Name of the codec implementation.
Definition: avcodec.h:3416
GLsizei count
Definition: opengl_enc.c:109
#define CLOSE_READER(name, gb)
Definition: get_bits.h:132
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1016
#define GET_RL_VLC(level, run, name, gb, table, bits,max_depth, need_update)
Definition: get_bits.h:517
Definition: cfhd.h:71
int a_width
Definition: cfhd.h:47
static av_cold int cfhd_close(AVCodecContext *avctx)
Definition: cfhd.c:941
static void init_frame_defaults(CFHDContext *s)
Definition: cfhd.c:85
SubBand band[DWT_LEVELS][4]
Definition: cfhd.h:68
int subband_cnt
Definition: cfhd.h:100
#define FFSIGN(a)
Definition: common.h:73
int width
picture width / height.
Definition: avcodec.h:1691
const int16_t * base
Definition: cfhd.h:74
static void init_plane_defaults(CFHDContext *s)
Definition: cfhd.c:71
uint16_t quantisation
Definition: cfhd.h:103
#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:220
int channel_num
Definition: cfhd.h:101
#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:86
int wavelet_depth
Definition: cfhd.h:104
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:249
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
main external API structure.
Definition: avcodec.h:1519
int codebook
Definition: cfhd.h:107
#define OPEN_READER(name, gb)
Definition: get_bits.h:121
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:109
int pshift
Definition: cfhd.h:105
enum AVPixelFormat coded_format
Definition: cfhd.h:91
AVCodec ff_cfhd_decoder
Definition: cfhd.c:955
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:433
refcounted data buffer API
Peak peak
Definition: cfhd.h:115
int level
Definition: cfhd.h:110
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:389
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: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
int coded_width
Definition: cfhd.h:88
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
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:59
channel
Use these values when setting the channel map with ebur128_set_channel().
Definition: ebur128.h:39
int bpc
Definition: cfhd.h:98
void * priv_data
Definition: avcodec.h:1546
int len
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1554
int a_height
Definition: cfhd.h:95
static void init_peak_table_defaults(CFHDContext *s)
Definition: cfhd.c:78
int height
Definition: cfhd.h:50
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:57
int offset
Definition: cfhd.h:73
static void free_buffers(CFHDContext *s)
Definition: cfhd.c:227
int height
Definition: frame.h:276
int ff_cfhd_init_vlcs(CFHDContext *s)
Definition: cfhddata.c:276
int progressive
Definition: cfhd.h:92
#define av_freep(p)
#define av_malloc_array(a, b)
#define stride
Plane plane[4]
Definition: cfhd.h:114
int height
Definition: cfhd.h:58
uint8_t lowpass_precision
Definition: cfhd.h:102
int16_t * subband[SUBBAND_COUNT]
Definition: cfhd.h:65
This structure stores compressed data.
Definition: avcodec.h:1408
void ff_free_vlc(VLC *vlc)
Definition: bitstream.c:354
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:960
for(j=16;j >0;--j)
int coded_height
Definition: cfhd.h:89
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
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