FFmpeg
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 static av_cold int cfhd_init(AVCodecContext *avctx)
44 {
45  CFHDContext *s = avctx->priv_data;
46 
47  s->avctx = avctx;
48 
49  for (int i = 0; i < 64; i++) {
50  int val = i;
51 
52  if (val >= 40) {
53  if (val >= 54) {
54  val -= 54;
55  val <<= 2;
56  val += 54;
57  }
58 
59  val -= 40;
60  val <<= 2;
61  val += 40;
62  }
63 
64  s->lut[0][i] = val;
65  }
66 
67  for (int i = 0; i < 256; i++)
68  s->lut[1][i] = i + ((768LL * i * i * i) / (256 * 256 * 256));
69 
70  return ff_cfhd_init_vlcs(s);
71 }
72 
73 static void init_plane_defaults(CFHDContext *s)
74 {
75  s->subband_num = 0;
76  s->level = 0;
77  s->subband_num_actual = 0;
78 }
79 
80 static void init_peak_table_defaults(CFHDContext *s)
81 {
82  s->peak.level = 0;
83  s->peak.offset = 0;
84  memset(&s->peak.base, 0, sizeof(s->peak.base));
85 }
86 
87 static void init_frame_defaults(CFHDContext *s)
88 {
89  s->coded_width = 0;
90  s->coded_height = 0;
91  s->coded_format = AV_PIX_FMT_YUV422P10;
92  s->cropped_height = 0;
93  s->bpc = 10;
94  s->channel_cnt = 3;
95  s->subband_cnt = SUBBAND_COUNT;
96  s->channel_num = 0;
97  s->lowpass_precision = 16;
98  s->quantisation = 1;
99  s->codebook = 0;
100  s->difference_coding = 0;
101  s->frame_type = 0;
102  s->sample_type = 0;
103  if (s->transform_type != 2)
104  s->transform_type = -1;
105  init_plane_defaults(s);
106  init_peak_table_defaults(s);
107 }
108 
109 static inline int dequant_and_decompand(CFHDContext *s, int level, int quantisation, int codebook)
110 {
111  if (codebook == 0 || codebook == 1) {
112  return s->lut[codebook][abs(level)] * FFSIGN(level) * quantisation;
113  } else
114  return level * quantisation;
115 }
116 
117 static inline void difference_coding(int16_t *band, int width, int height)
118 {
119 
120  int i,j;
121  for (i = 0; i < height; i++) {
122  for (j = 1; j < width; j++) {
123  band[j] += band[j-1];
124  }
125  band += width;
126  }
127 }
128 
129 static inline void peak_table(int16_t *band, Peak *peak, int length)
130 {
131  int i;
132  for (i = 0; i < length; i++)
133  if (abs(band[i]) > peak->level)
134  band[i] = bytestream2_get_le16(&peak->base);
135 }
136 
137 static inline void process_alpha(int16_t *alpha, int width)
138 {
139  int i, channel;
140  for (i = 0; i < width; i++) {
141  channel = alpha[i];
142  channel -= ALPHA_COMPAND_DC_OFFSET;
143  channel <<= 3;
144  channel *= ALPHA_COMPAND_GAIN;
145  channel >>= 16;
146  channel = av_clip_uintp2(channel, 12);
147  alpha[i] = channel;
148  }
149 }
150 
151 static inline void process_bayer(AVFrame *frame, int bpc)
152 {
153  const int linesize = frame->linesize[0];
154  uint16_t *r = (uint16_t *)frame->data[0];
155  uint16_t *g1 = (uint16_t *)(frame->data[0] + 2);
156  uint16_t *g2 = (uint16_t *)(frame->data[0] + frame->linesize[0]);
157  uint16_t *b = (uint16_t *)(frame->data[0] + frame->linesize[0] + 2);
158  const int mid = 1 << (bpc - 1);
159  const int factor = 1 << (16 - bpc);
160 
161  for (int y = 0; y < frame->height >> 1; y++) {
162  for (int x = 0; x < frame->width; x += 2) {
163  int R, G1, G2, B;
164  int g, rg, bg, gd;
165 
166  g = r[x];
167  rg = g1[x];
168  bg = g2[x];
169  gd = b[x];
170  gd -= mid;
171 
172  R = (rg - mid) * 2 + g;
173  G1 = g + gd;
174  G2 = g - gd;
175  B = (bg - mid) * 2 + g;
176 
177  R = av_clip_uintp2(R * factor, 16);
178  G1 = av_clip_uintp2(G1 * factor, 16);
179  G2 = av_clip_uintp2(G2 * factor, 16);
180  B = av_clip_uintp2(B * factor, 16);
181 
182  r[x] = R;
183  g1[x] = G1;
184  g2[x] = G2;
185  b[x] = B;
186  }
187 
188  r += linesize;
189  g1 += linesize;
190  g2 += linesize;
191  b += linesize;
192  }
193 }
194 
195 static inline void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high,
196  int width, int linesize, int plane)
197 {
198  int i;
199  int16_t even, odd;
200  for (i = 0; i < width; i++) {
201  even = (low[i] - high[i])/2;
202  odd = (low[i] + high[i])/2;
203  output[i] = av_clip_uintp2(even, 10);
204  output[i + linesize] = av_clip_uintp2(odd, 10);
205  }
206 }
207 
208 static inline void inverse_temporal_filter(int16_t *low, int16_t *high, int width)
209 {
210  for (int i = 0; i < width; i++) {
211  int even = (low[i] - high[i]) / 2;
212  int odd = (low[i] + high[i]) / 2;
213 
214  low[i] = even;
215  high[i] = odd;
216  }
217 }
218 
219 static void free_buffers(CFHDContext *s)
220 {
221  int i, j;
222 
223  for (i = 0; i < FF_ARRAY_ELEMS(s->plane); i++) {
224  Plane *p = &s->plane[i];
225  av_freep(&s->plane[i].idwt_buf);
226  av_freep(&s->plane[i].idwt_tmp);
227  s->plane[i].idwt_size = 0;
228 
229  for (j = 0; j < SUBBAND_COUNT_3D; j++)
230  s->plane[i].subband[j] = NULL;
231 
232  for (j = 0; j < 10; j++)
233  s->plane[i].l_h[j] = NULL;
234 
235  for (j = 0; j < DWT_LEVELS_3D; j++)
236  p->band[j][0].read_ok =
237  p->band[j][1].read_ok =
238  p->band[j][2].read_ok =
239  p->band[j][3].read_ok = 0;
240  }
241  s->a_height = 0;
242  s->a_width = 0;
243  s->a_transform_type = INT_MIN;
244 }
245 
246 static int alloc_buffers(AVCodecContext *avctx)
247 {
248  CFHDContext *s = avctx->priv_data;
249  int i, j, ret, planes, bayer = 0;
250  int chroma_x_shift, chroma_y_shift;
251  unsigned k;
252 
253  if ((ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height)) < 0)
254  return ret;
255  avctx->pix_fmt = s->coded_format;
256 
257  ff_cfhddsp_init(&s->dsp, s->bpc, avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16);
258 
259  if ((ret = av_pix_fmt_get_chroma_sub_sample(s->coded_format,
260  &chroma_x_shift,
261  &chroma_y_shift)) < 0)
262  return ret;
263  planes = av_pix_fmt_count_planes(s->coded_format);
264  if (s->coded_format == AV_PIX_FMT_BAYER_RGGB16) {
265  planes = 4;
266  chroma_x_shift = 1;
267  chroma_y_shift = 1;
268  bayer = 1;
269  }
270 
271  for (i = 0; i < planes; i++) {
272  int w8, h8, w4, h4, w2, h2;
273  int width = (i || bayer) ? s->coded_width >> chroma_x_shift : s->coded_width;
274  int height = (i || bayer) ? s->coded_height >> chroma_y_shift : s->coded_height;
275  ptrdiff_t stride = (FFALIGN(width / 8, 8) + 64) * 8;
276 
277  if (chroma_y_shift && !bayer)
278  height = FFALIGN(height / 8, 2) * 8;
279  s->plane[i].width = width;
280  s->plane[i].height = height;
281  s->plane[i].stride = stride;
282 
283  w8 = FFALIGN(s->plane[i].width / 8, 8) + 64;
284  h8 = FFALIGN(height, 8) / 8;
285  w4 = w8 * 2;
286  h4 = h8 * 2;
287  w2 = w4 * 2;
288  h2 = h4 * 2;
289 
290  if (s->transform_type == 0) {
291  s->plane[i].idwt_size = FFALIGN(height, 8) * stride;
292  s->plane[i].idwt_buf =
293  av_calloc(s->plane[i].idwt_size, sizeof(*s->plane[i].idwt_buf));
294  s->plane[i].idwt_tmp =
295  av_malloc_array(s->plane[i].idwt_size, sizeof(*s->plane[i].idwt_tmp));
296  } else {
297  s->plane[i].idwt_size = FFALIGN(height, 8) * stride * 2;
298  s->plane[i].idwt_buf =
299  av_calloc(s->plane[i].idwt_size, sizeof(*s->plane[i].idwt_buf));
300  s->plane[i].idwt_tmp =
301  av_malloc_array(s->plane[i].idwt_size, sizeof(*s->plane[i].idwt_tmp));
302  }
303 
304  if (!s->plane[i].idwt_buf || !s->plane[i].idwt_tmp)
305  return AVERROR(ENOMEM);
306 
307  s->plane[i].subband[0] = s->plane[i].idwt_buf;
308  s->plane[i].subband[1] = s->plane[i].idwt_buf + 2 * w8 * h8;
309  s->plane[i].subband[2] = s->plane[i].idwt_buf + 1 * w8 * h8;
310  s->plane[i].subband[3] = s->plane[i].idwt_buf + 3 * w8 * h8;
311  s->plane[i].subband[4] = s->plane[i].idwt_buf + 2 * w4 * h4;
312  s->plane[i].subband[5] = s->plane[i].idwt_buf + 1 * w4 * h4;
313  s->plane[i].subband[6] = s->plane[i].idwt_buf + 3 * w4 * h4;
314  if (s->transform_type == 0) {
315  s->plane[i].subband[7] = s->plane[i].idwt_buf + 2 * w2 * h2;
316  s->plane[i].subband[8] = s->plane[i].idwt_buf + 1 * w2 * h2;
317  s->plane[i].subband[9] = s->plane[i].idwt_buf + 3 * w2 * h2;
318  } else {
319  int16_t *frame2 =
320  s->plane[i].subband[7] = s->plane[i].idwt_buf + 4 * w2 * h2;
321  s->plane[i].subband[8] = frame2 + 2 * w4 * h4;
322  s->plane[i].subband[9] = frame2 + 1 * w4 * h4;
323  s->plane[i].subband[10] = frame2 + 3 * w4 * h4;
324  s->plane[i].subband[11] = frame2 + 2 * w2 * h2;
325  s->plane[i].subband[12] = frame2 + 1 * w2 * h2;
326  s->plane[i].subband[13] = frame2 + 3 * w2 * h2;
327  s->plane[i].subband[14] = s->plane[i].idwt_buf + 2 * w2 * h2;
328  s->plane[i].subband[15] = s->plane[i].idwt_buf + 1 * w2 * h2;
329  s->plane[i].subband[16] = s->plane[i].idwt_buf + 3 * w2 * h2;
330  }
331 
332  if (s->transform_type == 0) {
333  for (j = 0; j < DWT_LEVELS; j++) {
334  for (k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
335  s->plane[i].band[j][k].a_width = w8 << j;
336  s->plane[i].band[j][k].a_height = h8 << j;
337  }
338  }
339  } else {
340  for (j = 0; j < DWT_LEVELS_3D; j++) {
341  int t = j < 1 ? 0 : (j < 3 ? 1 : 2);
342 
343  for (k = 0; k < FF_ARRAY_ELEMS(s->plane[i].band[j]); k++) {
344  s->plane[i].band[j][k].a_width = w8 << t;
345  s->plane[i].band[j][k].a_height = h8 << t;
346  }
347  }
348  }
349 
350  /* ll2 and ll1 commented out because they are done in-place */
351  s->plane[i].l_h[0] = s->plane[i].idwt_tmp;
352  s->plane[i].l_h[1] = s->plane[i].idwt_tmp + 2 * w8 * h8;
353  // s->plane[i].l_h[2] = ll2;
354  s->plane[i].l_h[3] = s->plane[i].idwt_tmp;
355  s->plane[i].l_h[4] = s->plane[i].idwt_tmp + 2 * w4 * h4;
356  // s->plane[i].l_h[5] = ll1;
357  s->plane[i].l_h[6] = s->plane[i].idwt_tmp;
358  s->plane[i].l_h[7] = s->plane[i].idwt_tmp + 2 * w2 * h2;
359  if (s->transform_type != 0) {
360  int16_t *frame2 = s->plane[i].idwt_tmp + 4 * w2 * h2;
361 
362  s->plane[i].l_h[8] = frame2;
363  s->plane[i].l_h[9] = frame2 + 2 * w2 * h2;
364  }
365  }
366 
367  s->a_transform_type = s->transform_type;
368  s->a_height = s->coded_height;
369  s->a_width = s->coded_width;
370  s->a_format = s->coded_format;
371 
372  return 0;
373 }
374 
375 static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
376  AVPacket *avpkt)
377 {
378  CFHDContext *s = avctx->priv_data;
379  CFHDDSPContext *dsp = &s->dsp;
380  GetByteContext gb;
381  ThreadFrame frame = { .f = data };
382  AVFrame *pic = data;
383  int ret = 0, i, j, plane, got_buffer = 0;
384  int16_t *coeff_data;
385 
386  init_frame_defaults(s);
387  s->planes = av_pix_fmt_count_planes(s->coded_format);
388 
389  bytestream2_init(&gb, avpkt->data, avpkt->size);
390 
391  while (bytestream2_get_bytes_left(&gb) >= 4) {
392  /* Bit weird but implement the tag parsing as the spec says */
393  uint16_t tagu = bytestream2_get_be16(&gb);
394  int16_t tag = (int16_t)tagu;
395  int8_t tag8 = (int8_t)(tagu >> 8);
396  uint16_t abstag = abs(tag);
397  int8_t abs_tag8 = abs(tag8);
398  uint16_t data = bytestream2_get_be16(&gb);
399  if (abs_tag8 >= 0x60 && abs_tag8 <= 0x6f) {
400  av_log(avctx, AV_LOG_DEBUG, "large len %x\n", ((tagu & 0xff) << 16) | data);
401  } else if (tag == SampleFlags) {
402  av_log(avctx, AV_LOG_DEBUG, "Progressive? %"PRIu16"\n", data);
403  s->progressive = data & 0x0001;
404  } else if (tag == FrameType) {
405  s->frame_type = data;
406  av_log(avctx, AV_LOG_DEBUG, "Frame type %"PRIu16"\n", data);
407  } else if (abstag == VersionMajor) {
408  av_log(avctx, AV_LOG_DEBUG, "Version major %"PRIu16"\n", data);
409  } else if (abstag == VersionMinor) {
410  av_log(avctx, AV_LOG_DEBUG, "Version minor %"PRIu16"\n", data);
411  } else if (abstag == VersionRevision) {
412  av_log(avctx, AV_LOG_DEBUG, "Version revision %"PRIu16"\n", data);
413  } else if (abstag == VersionEdit) {
414  av_log(avctx, AV_LOG_DEBUG, "Version edit %"PRIu16"\n", data);
415  } else if (abstag == Version) {
416  av_log(avctx, AV_LOG_DEBUG, "Version %"PRIu16"\n", data);
417  } else if (tag == ImageWidth) {
418  av_log(avctx, AV_LOG_DEBUG, "Width %"PRIu16"\n", data);
419  s->coded_width = data;
420  } else if (tag == ImageHeight) {
421  av_log(avctx, AV_LOG_DEBUG, "Height %"PRIu16"\n", data);
422  s->coded_height = data;
423  } else if (tag == ChannelCount) {
424  av_log(avctx, AV_LOG_DEBUG, "Channel Count: %"PRIu16"\n", data);
425  s->channel_cnt = data;
426  if (data > 4) {
427  av_log(avctx, AV_LOG_ERROR, "Channel Count of %"PRIu16" is unsupported\n", data);
428  ret = AVERROR_PATCHWELCOME;
429  goto end;
430  }
431  } else if (tag == SubbandCount) {
432  av_log(avctx, AV_LOG_DEBUG, "Subband Count: %"PRIu16"\n", data);
433  if (data != SUBBAND_COUNT && data != SUBBAND_COUNT_3D) {
434  av_log(avctx, AV_LOG_ERROR, "Subband Count of %"PRIu16" is unsupported\n", data);
435  ret = AVERROR_PATCHWELCOME;
436  goto end;
437  }
438  } else if (tag == ChannelNumber) {
439  s->channel_num = data;
440  av_log(avctx, AV_LOG_DEBUG, "Channel number %"PRIu16"\n", data);
441  if (s->channel_num >= s->planes) {
442  av_log(avctx, AV_LOG_ERROR, "Invalid channel number\n");
443  ret = AVERROR(EINVAL);
444  goto end;
445  }
446  init_plane_defaults(s);
447  } else if (tag == SubbandNumber) {
448  if (s->subband_num != 0 && data == 1 && (s->transform_type == 0 || s->transform_type == 2)) // hack
449  s->level++;
450  av_log(avctx, AV_LOG_DEBUG, "Subband number %"PRIu16"\n", data);
451  s->subband_num = data;
452  if ((s->transform_type == 0 && s->level >= DWT_LEVELS) ||
453  (s->transform_type == 2 && s->level >= DWT_LEVELS_3D)) {
454  av_log(avctx, AV_LOG_ERROR, "Invalid level\n");
455  ret = AVERROR(EINVAL);
456  goto end;
457  }
458  if (s->subband_num > 3) {
459  av_log(avctx, AV_LOG_ERROR, "Invalid subband number\n");
460  ret = AVERROR(EINVAL);
461  goto end;
462  }
463  } else if (tag == SubbandBand) {
464  av_log(avctx, AV_LOG_DEBUG, "Subband number actual %"PRIu16"\n", data);
465  if ((s->transform_type == 0 && data >= SUBBAND_COUNT) ||
466  (s->transform_type == 2 && data >= SUBBAND_COUNT_3D && data != 255)) {
467  av_log(avctx, AV_LOG_ERROR, "Invalid subband number actual\n");
468  ret = AVERROR(EINVAL);
469  goto end;
470  }
471  if (s->transform_type == 0 || s->transform_type == 2)
472  s->subband_num_actual = data;
473  else
474  av_log(avctx, AV_LOG_WARNING, "Ignoring subband num actual %"PRIu16"\n", data);
475  } else if (tag == LowpassPrecision)
476  av_log(avctx, AV_LOG_DEBUG, "Lowpass precision bits: %"PRIu16"\n", data);
477  else if (tag == Quantization) {
478  s->quantisation = data;
479  av_log(avctx, AV_LOG_DEBUG, "Quantisation: %"PRIu16"\n", data);
480  } else if (tag == PrescaleTable) {
481  for (i = 0; i < 8; i++)
482  s->prescale_table[i] = (data >> (14 - i * 2)) & 0x3;
483  av_log(avctx, AV_LOG_DEBUG, "Prescale table: %x\n", data);
484  } else if (tag == BandEncoding) {
485  if (!data || data > 5) {
486  av_log(avctx, AV_LOG_ERROR, "Invalid band encoding\n");
487  ret = AVERROR(EINVAL);
488  goto end;
489  }
490  s->band_encoding = data;
491  av_log(avctx, AV_LOG_DEBUG, "Encode Method for Subband %d : %x\n", s->subband_num_actual, data);
492  } else if (tag == LowpassWidth) {
493  av_log(avctx, AV_LOG_DEBUG, "Lowpass width %"PRIu16"\n", data);
494  s->plane[s->channel_num].band[0][0].width = data;
495  s->plane[s->channel_num].band[0][0].stride = data;
496  } else if (tag == LowpassHeight) {
497  av_log(avctx, AV_LOG_DEBUG, "Lowpass height %"PRIu16"\n", data);
498  s->plane[s->channel_num].band[0][0].height = data;
499  } else if (tag == SampleType) {
500  s->sample_type = data;
501  av_log(avctx, AV_LOG_DEBUG, "Sample type? %"PRIu16"\n", data);
502  } else if (tag == TransformType) {
503  if (data > 2) {
504  av_log(avctx, AV_LOG_ERROR, "Invalid transform type\n");
505  ret = AVERROR(EINVAL);
506  goto end;
507  } else if (data == 1) {
508  av_log(avctx, AV_LOG_ERROR, "unsupported transform type\n");
509  ret = AVERROR_PATCHWELCOME;
510  goto end;
511  }
512  if (s->transform_type == -1) {
513  s->transform_type = data;
514  av_log(avctx, AV_LOG_DEBUG, "Transform type %"PRIu16"\n", data);
515  } else {
516  av_log(avctx, AV_LOG_DEBUG, "Ignoring additional transform type %"PRIu16"\n", data);
517  }
518  } else if (abstag >= 0x4000 && abstag <= 0x40ff) {
519  if (abstag == 0x4001)
520  s->peak.level = 0;
521  av_log(avctx, AV_LOG_DEBUG, "Small chunk length %d %s\n", data * 4, tag < 0 ? "optional" : "required");
522  bytestream2_skipu(&gb, data * 4);
523  } else if (tag == FrameIndex) {
524  av_log(avctx, AV_LOG_DEBUG, "Frame index %"PRIu16"\n", data);
525  s->frame_index = data;
526  } else if (tag == SampleIndexTable) {
527  av_log(avctx, AV_LOG_DEBUG, "Sample index table - skipping %i values\n", data);
528  if (data > bytestream2_get_bytes_left(&gb) / 4) {
529  av_log(avctx, AV_LOG_ERROR, "too many values (%d)\n", data);
530  ret = AVERROR_INVALIDDATA;
531  goto end;
532  }
533  for (i = 0; i < data; i++) {
534  uint32_t offset = bytestream2_get_be32(&gb);
535  av_log(avctx, AV_LOG_DEBUG, "Offset = %"PRIu32"\n", offset);
536  }
537  } else if (tag == HighpassWidth) {
538  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);
539  if (data < 3) {
540  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width\n");
541  ret = AVERROR(EINVAL);
542  goto end;
543  }
544  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
545  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
546  } else if (tag == HighpassHeight) {
547  av_log(avctx, AV_LOG_DEBUG, "Highpass height %i\n", data);
548  if (data < 3) {
549  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height\n");
550  ret = AVERROR(EINVAL);
551  goto end;
552  }
553  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
554  } else if (tag == BandWidth) {
555  av_log(avctx, AV_LOG_DEBUG, "Highpass width2 %i\n", data);
556  if (data < 3) {
557  av_log(avctx, AV_LOG_ERROR, "Invalid highpass width2\n");
558  ret = AVERROR(EINVAL);
559  goto end;
560  }
561  s->plane[s->channel_num].band[s->level][s->subband_num].width = data;
562  s->plane[s->channel_num].band[s->level][s->subband_num].stride = FFALIGN(data, 8);
563  } else if (tag == BandHeight) {
564  av_log(avctx, AV_LOG_DEBUG, "Highpass height2 %i\n", data);
565  if (data < 3) {
566  av_log(avctx, AV_LOG_ERROR, "Invalid highpass height2\n");
567  ret = AVERROR(EINVAL);
568  goto end;
569  }
570  s->plane[s->channel_num].band[s->level][s->subband_num].height = data;
571  } else if (tag == InputFormat) {
572  av_log(avctx, AV_LOG_DEBUG, "Input format %i\n", data);
573  if (s->coded_format == AV_PIX_FMT_NONE ||
574  s->coded_format == AV_PIX_FMT_YUV422P10) {
575  if (data >= 100 && data <= 105) {
576  s->coded_format = AV_PIX_FMT_BAYER_RGGB16;
577  } else if (data >= 122 && data <= 128) {
578  s->coded_format = AV_PIX_FMT_GBRP12;
579  } else if (data == 30) {
580  s->coded_format = AV_PIX_FMT_GBRAP12;
581  } else {
582  s->coded_format = AV_PIX_FMT_YUV422P10;
583  }
584  s->planes = s->coded_format == AV_PIX_FMT_BAYER_RGGB16 ? 4 : av_pix_fmt_count_planes(s->coded_format);
585  }
586  } else if (tag == BandCodingFlags) {
587  s->codebook = data & 0xf;
588  s->difference_coding = (data >> 4) & 1;
589  av_log(avctx, AV_LOG_DEBUG, "Other codebook? %i\n", s->codebook);
590  } else if (tag == Precision) {
591  av_log(avctx, AV_LOG_DEBUG, "Precision %i\n", data);
592  if (!(data == 10 || data == 12)) {
593  av_log(avctx, AV_LOG_ERROR, "Invalid bits per channel\n");
594  ret = AVERROR(EINVAL);
595  goto end;
596  }
597  avctx->bits_per_raw_sample = s->bpc = data;
598  } else if (tag == EncodedFormat) {
599  av_log(avctx, AV_LOG_DEBUG, "Sample format? %i\n", data);
600  if (data == 1) {
601  s->coded_format = AV_PIX_FMT_YUV422P10;
602  } else if (data == 2) {
603  s->coded_format = AV_PIX_FMT_BAYER_RGGB16;
604  } else if (data == 3) {
605  s->coded_format = AV_PIX_FMT_GBRP12;
606  } else if (data == 4) {
607  s->coded_format = AV_PIX_FMT_GBRAP12;
608  } else {
609  avpriv_report_missing_feature(avctx, "Sample format of %"PRIu16, data);
610  ret = AVERROR_PATCHWELCOME;
611  goto end;
612  }
613  s->planes = data == 2 ? 4 : av_pix_fmt_count_planes(s->coded_format);
614  } else if (tag == -DisplayHeight) {
615  av_log(avctx, AV_LOG_DEBUG, "Cropped height %"PRIu16"\n", data);
616  s->cropped_height = data;
617  } else if (tag == -PeakOffsetLow) {
618  s->peak.offset &= ~0xffff;
619  s->peak.offset |= (data & 0xffff);
620  s->peak.base = gb;
621  s->peak.level = 0;
622  } else if (tag == -PeakOffsetHigh) {
623  s->peak.offset &= 0xffff;
624  s->peak.offset |= (data & 0xffffU)<<16;
625  s->peak.base = gb;
626  s->peak.level = 0;
627  } else if (tag == -PeakLevel && s->peak.offset) {
628  s->peak.level = data;
629  if (s->peak.offset < 4 - bytestream2_tell(&s->peak.base) ||
630  s->peak.offset > 4 + bytestream2_get_bytes_left(&s->peak.base)
631  ) {
632  ret = AVERROR_INVALIDDATA;
633  goto end;
634  }
635  bytestream2_seek(&s->peak.base, s->peak.offset - 4, SEEK_CUR);
636  } else
637  av_log(avctx, AV_LOG_DEBUG, "Unknown tag %i data %x\n", tag, data);
638 
639  if (tag == BitstreamMarker && data == 0xf0f &&
640  s->coded_format != AV_PIX_FMT_NONE) {
641  int lowpass_height = s->plane[s->channel_num].band[0][0].height;
642  int lowpass_width = s->plane[s->channel_num].band[0][0].width;
643  int factor = s->coded_format == AV_PIX_FMT_BAYER_RGGB16 ? 2 : 1;
644 
645  if (s->coded_width) {
646  s->coded_width *= factor;
647  }
648 
649  if (s->coded_height) {
650  s->coded_height *= factor;
651  }
652 
653  if (!s->a_width && !s->coded_width) {
654  s->coded_width = lowpass_width * factor * 8;
655  }
656 
657  if (!s->a_height && !s->coded_height) {
658  s->coded_height = lowpass_height * factor * 8;
659  }
660 
661  if (s->a_width && !s->coded_width)
662  s->coded_width = s->a_width;
663  if (s->a_height && !s->coded_height)
664  s->coded_height = s->a_height;
665 
666  if (s->a_width != s->coded_width || s->a_height != s->coded_height ||
667  s->a_format != s->coded_format ||
668  s->transform_type != s->a_transform_type) {
669  free_buffers(s);
670  if ((ret = alloc_buffers(avctx)) < 0) {
671  free_buffers(s);
672  return ret;
673  }
674  }
675  ret = ff_set_dimensions(avctx, s->coded_width, s->coded_height);
676  if (ret < 0)
677  return ret;
678  if (s->cropped_height) {
679  unsigned height = s->cropped_height << (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16);
680  if (avctx->height < height)
681  return AVERROR_INVALIDDATA;
682  avctx->height = height;
683  }
684  frame.f->width =
685  frame.f->height = 0;
686 
687  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
688  return ret;
689 
690  s->coded_width = 0;
691  s->coded_height = 0;
692  s->coded_format = AV_PIX_FMT_NONE;
693  got_buffer = 1;
694  } else if (tag == FrameIndex && data == 1 && s->sample_type == 1 && s->frame_type == 2) {
695  frame.f->width =
696  frame.f->height = 0;
697 
698  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
699  return ret;
700  s->coded_width = 0;
701  s->coded_height = 0;
702  s->coded_format = AV_PIX_FMT_NONE;
703  got_buffer = 1;
704  }
705 
706  if (s->subband_num_actual == 255)
707  goto finish;
708  coeff_data = s->plane[s->channel_num].subband[s->subband_num_actual];
709 
710  /* Lowpass coefficients */
711  if (tag == BitstreamMarker && data == 0xf0f) {
712  int lowpass_height, lowpass_width, lowpass_a_height, lowpass_a_width;
713 
714  if (!s->a_width || !s->a_height) {
715  ret = AVERROR_INVALIDDATA;
716  goto end;
717  }
718 
719  lowpass_height = s->plane[s->channel_num].band[0][0].height;
720  lowpass_width = s->plane[s->channel_num].band[0][0].width;
721  lowpass_a_height = s->plane[s->channel_num].band[0][0].a_height;
722  lowpass_a_width = s->plane[s->channel_num].band[0][0].a_width;
723 
724  if (lowpass_width < 3 ||
725  lowpass_width > lowpass_a_width) {
726  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass width\n");
727  ret = AVERROR(EINVAL);
728  goto end;
729  }
730 
731  if (lowpass_height < 3 ||
732  lowpass_height > lowpass_a_height) {
733  av_log(avctx, AV_LOG_ERROR, "Invalid lowpass height\n");
734  ret = AVERROR(EINVAL);
735  goto end;
736  }
737 
738  if (!got_buffer) {
739  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
740  ret = AVERROR(EINVAL);
741  goto end;
742  }
743 
744  if (lowpass_height > lowpass_a_height || lowpass_width > lowpass_a_width ||
745  lowpass_width * lowpass_height * sizeof(int16_t) > bytestream2_get_bytes_left(&gb)) {
746  av_log(avctx, AV_LOG_ERROR, "Too many lowpass coefficients\n");
747  ret = AVERROR(EINVAL);
748  goto end;
749  }
750 
751  av_log(avctx, AV_LOG_DEBUG, "Start of lowpass coeffs component %d height:%d, width:%d\n", s->channel_num, lowpass_height, lowpass_width);
752  for (i = 0; i < lowpass_height; i++) {
753  for (j = 0; j < lowpass_width; j++)
754  coeff_data[j] = bytestream2_get_be16u(&gb);
755 
756  coeff_data += lowpass_width;
757  }
758 
759  /* Align to mod-4 position to continue reading tags */
760  bytestream2_seek(&gb, bytestream2_tell(&gb) & 3, SEEK_CUR);
761 
762  /* Copy last line of coefficients if odd height */
763  if (lowpass_height & 1) {
764  memcpy(&coeff_data[lowpass_height * lowpass_width],
765  &coeff_data[(lowpass_height - 1) * lowpass_width],
766  lowpass_width * sizeof(*coeff_data));
767  }
768 
769  s->plane[s->channel_num].band[0][0].read_ok = 1;
770 
771  av_log(avctx, AV_LOG_DEBUG, "Lowpass coefficients %d\n", lowpass_width * lowpass_height);
772  }
773 
774  av_assert0(s->subband_num_actual != 255);
775  if (tag == BandHeader || tag == BandSecondPass) {
776  int highpass_height, highpass_width, highpass_a_width, highpass_a_height, highpass_stride, a_expected;
777  int expected;
778  int level, run, coeff;
779  int count = 0, bytes;
780 
781  if (!s->a_width || !s->a_height) {
782  ret = AVERROR_INVALIDDATA;
783  goto end;
784  }
785 
786  highpass_height = s->plane[s->channel_num].band[s->level][s->subband_num].height;
787  highpass_width = s->plane[s->channel_num].band[s->level][s->subband_num].width;
788  highpass_a_width = s->plane[s->channel_num].band[s->level][s->subband_num].a_width;
789  highpass_a_height = s->plane[s->channel_num].band[s->level][s->subband_num].a_height;
790  highpass_stride = s->plane[s->channel_num].band[s->level][s->subband_num].stride;
791  a_expected = highpass_a_height * highpass_a_width;
792 
793  if (!got_buffer) {
794  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
795  ret = AVERROR(EINVAL);
796  goto end;
797  }
798 
799  if (highpass_height > highpass_a_height || highpass_width > highpass_a_width || a_expected < highpass_height * (uint64_t)highpass_stride) {
800  av_log(avctx, AV_LOG_ERROR, "Too many highpass coefficients\n");
801  ret = AVERROR(EINVAL);
802  goto end;
803  }
804  expected = highpass_height * highpass_stride;
805 
806  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);
807 
808  ret = init_get_bits8(&s->gb, gb.buffer, bytestream2_get_bytes_left(&gb));
809  if (ret < 0)
810  goto end;
811  {
812  OPEN_READER(re, &s->gb);
813 
814  const int lossless = s->band_encoding == 5;
815 
816  if (s->codebook == 0 && s->transform_type == 2 && s->subband_num_actual == 7)
817  s->codebook = 1;
818  if (!s->codebook) {
819  while (1) {
820  UPDATE_CACHE(re, &s->gb);
821  GET_RL_VLC(level, run, re, &s->gb, s->table_9_rl_vlc,
822  VLC_BITS, 3, 1);
823 
824  /* escape */
825  if (level == 64)
826  break;
827 
828  count += run;
829 
830  if (count > expected)
831  break;
832 
833  if (!lossless)
834  coeff = dequant_and_decompand(s, level, s->quantisation, 0);
835  else
836  coeff = level;
837  if (tag == BandSecondPass) {
838  const uint16_t q = s->quantisation;
839 
840  for (i = 0; i < run; i++) {
841  *coeff_data |= coeff * 256;
842  *coeff_data++ *= q;
843  }
844  } else {
845  for (i = 0; i < run; i++)
846  *coeff_data++ = coeff;
847  }
848  }
849  } else {
850  while (1) {
851  UPDATE_CACHE(re, &s->gb);
852  GET_RL_VLC(level, run, re, &s->gb, s->table_18_rl_vlc,
853  VLC_BITS, 3, 1);
854 
855  /* escape */
856  if (level == 255 && run == 2)
857  break;
858 
859  count += run;
860 
861  if (count > expected)
862  break;
863 
864  if (!lossless)
865  coeff = dequant_and_decompand(s, level, s->quantisation, s->codebook);
866  else
867  coeff = level;
868  if (tag == BandSecondPass) {
869  const uint16_t q = s->quantisation;
870 
871  for (i = 0; i < run; i++) {
872  *coeff_data |= coeff * 256;
873  *coeff_data++ *= q;
874  }
875  } else {
876  for (i = 0; i < run; i++)
877  *coeff_data++ = coeff;
878  }
879  }
880  }
881  CLOSE_READER(re, &s->gb);
882  }
883 
884  if (count > expected) {
885  av_log(avctx, AV_LOG_ERROR, "Escape codeword not found, probably corrupt data\n");
886  ret = AVERROR(EINVAL);
887  goto end;
888  }
889  if (s->peak.level)
890  peak_table(coeff_data - count, &s->peak, count);
891  if (s->difference_coding)
892  difference_coding(s->plane[s->channel_num].subband[s->subband_num_actual], highpass_width, highpass_height);
893 
894  bytes = FFALIGN(AV_CEIL_RSHIFT(get_bits_count(&s->gb), 3), 4);
895  if (bytes > bytestream2_get_bytes_left(&gb)) {
896  av_log(avctx, AV_LOG_ERROR, "Bitstream overread error\n");
897  ret = AVERROR(EINVAL);
898  goto end;
899  } else
900  bytestream2_seek(&gb, bytes, SEEK_CUR);
901 
902  av_log(avctx, AV_LOG_DEBUG, "End subband coeffs %i extra %i\n", count, count - expected);
903  s->plane[s->channel_num].band[s->level][s->subband_num].read_ok = 1;
904 finish:
905  if (s->subband_num_actual != 255)
906  s->codebook = 0;
907  }
908  }
909 
910  s->planes = av_pix_fmt_count_planes(avctx->pix_fmt);
911  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
912  s->progressive = 1;
913  s->planes = 4;
914  }
915 
916  ff_thread_finish_setup(avctx);
917 
918  if (!s->a_width || !s->a_height || s->a_format == AV_PIX_FMT_NONE ||
919  s->a_transform_type == INT_MIN ||
920  s->coded_width || s->coded_height || s->coded_format != AV_PIX_FMT_NONE) {
921  av_log(avctx, AV_LOG_ERROR, "Invalid dimensions\n");
922  ret = AVERROR(EINVAL);
923  goto end;
924  }
925 
926  if (!got_buffer) {
927  av_log(avctx, AV_LOG_ERROR, "No end of header tag found\n");
928  ret = AVERROR(EINVAL);
929  goto end;
930  }
931 
932  for (plane = 0; plane < s->planes; plane++) {
933  int o, level;
934 
935  for (level = 0; level < (s->transform_type == 0 ? DWT_LEVELS : DWT_LEVELS_3D) ; level++) {
936  if (s->transform_type == 2)
937  if (level == 2 || level == 5)
938  continue;
939  for (o = !!level; o < 4 ; o++) {
940  if (!s->plane[plane].band[level][o].read_ok) {
941  ret = AVERROR_INVALIDDATA;
942  goto end;
943  }
944  }
945  }
946  }
947 
948  if (s->transform_type == 0 && s->sample_type != 1) {
949  for (plane = 0; plane < s->planes && !ret; plane++) {
950  /* level 1 */
951  int lowpass_height = s->plane[plane].band[0][0].height;
952  int output_stride = s->plane[plane].band[0][0].a_width;
953  int lowpass_width = s->plane[plane].band[0][0].width;
954  int highpass_stride = s->plane[plane].band[0][1].stride;
955  int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
956  ptrdiff_t dst_linesize;
957  int16_t *low, *high, *output, *dst;
958 
959  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
960  act_plane = 0;
961  dst_linesize = pic->linesize[act_plane];
962  } else {
963  dst_linesize = pic->linesize[act_plane] / 2;
964  }
965 
966  if (lowpass_height > s->plane[plane].band[0][0].a_height || lowpass_width > s->plane[plane].band[0][0].a_width ||
967  !highpass_stride || s->plane[plane].band[0][1].width > s->plane[plane].band[0][1].a_width ||
968  lowpass_width < 3 || lowpass_height < 3) {
969  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
970  ret = AVERROR(EINVAL);
971  goto end;
972  }
973 
974  av_log(avctx, AV_LOG_DEBUG, "Decoding level 1 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
975 
976  low = s->plane[plane].subband[0];
977  high = s->plane[plane].subband[2];
978  output = s->plane[plane].l_h[0];
979  dsp->vert_filter(output, output_stride, low, lowpass_width, high, highpass_stride, lowpass_width, lowpass_height);
980 
981  low = s->plane[plane].subband[1];
982  high = s->plane[plane].subband[3];
983  output = s->plane[plane].l_h[1];
984 
985  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
986 
987  low = s->plane[plane].l_h[0];
988  high = s->plane[plane].l_h[1];
989  output = s->plane[plane].subband[0];
990  dsp->horiz_filter(output, output_stride, low, output_stride, high, output_stride, lowpass_width, lowpass_height * 2);
991  if (s->bpc == 12) {
992  output = s->plane[plane].subband[0];
993  for (i = 0; i < lowpass_height * 2; i++) {
994  for (j = 0; j < lowpass_width * 2; j++)
995  output[j] *= 4;
996 
997  output += output_stride * 2;
998  }
999  }
1000 
1001  /* level 2 */
1002  lowpass_height = s->plane[plane].band[1][1].height;
1003  output_stride = s->plane[plane].band[1][1].a_width;
1004  lowpass_width = s->plane[plane].band[1][1].width;
1005  highpass_stride = s->plane[plane].band[1][1].stride;
1006 
1007  if (lowpass_height > s->plane[plane].band[1][1].a_height || lowpass_width > s->plane[plane].band[1][1].a_width ||
1008  !highpass_stride || s->plane[plane].band[1][1].width > s->plane[plane].band[1][1].a_width ||
1009  lowpass_width < 3 || lowpass_height < 3) {
1010  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1011  ret = AVERROR(EINVAL);
1012  goto end;
1013  }
1014 
1015  av_log(avctx, AV_LOG_DEBUG, "Level 2 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
1016 
1017  low = s->plane[plane].subband[0];
1018  high = s->plane[plane].subband[5];
1019  output = s->plane[plane].l_h[3];
1020  dsp->vert_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1021 
1022  low = s->plane[plane].subband[4];
1023  high = s->plane[plane].subband[6];
1024  output = s->plane[plane].l_h[4];
1025  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1026 
1027  low = s->plane[plane].l_h[3];
1028  high = s->plane[plane].l_h[4];
1029  output = s->plane[plane].subband[0];
1030  dsp->horiz_filter(output, output_stride, low, output_stride, high, output_stride, lowpass_width, lowpass_height * 2);
1031 
1032  output = s->plane[plane].subband[0];
1033  for (i = 0; i < lowpass_height * 2; i++) {
1034  for (j = 0; j < lowpass_width * 2; j++)
1035  output[j] *= 4;
1036 
1037  output += output_stride * 2;
1038  }
1039 
1040  /* level 3 */
1041  lowpass_height = s->plane[plane].band[2][1].height;
1042  output_stride = s->plane[plane].band[2][1].a_width;
1043  lowpass_width = s->plane[plane].band[2][1].width;
1044  highpass_stride = s->plane[plane].band[2][1].stride;
1045 
1046  if (lowpass_height > s->plane[plane].band[2][1].a_height || lowpass_width > s->plane[plane].band[2][1].a_width ||
1047  !highpass_stride || s->plane[plane].band[2][1].width > s->plane[plane].band[2][1].a_width ||
1048  lowpass_height < 3 || lowpass_width < 3 || lowpass_width * 2 > s->plane[plane].width) {
1049  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1050  ret = AVERROR(EINVAL);
1051  goto end;
1052  }
1053 
1054  av_log(avctx, AV_LOG_DEBUG, "Level 3 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
1055  if (s->progressive) {
1056  low = s->plane[plane].subband[0];
1057  high = s->plane[plane].subband[8];
1058  output = s->plane[plane].l_h[6];
1059  dsp->vert_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1060 
1061  low = s->plane[plane].subband[7];
1062  high = s->plane[plane].subband[9];
1063  output = s->plane[plane].l_h[7];
1064  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1065 
1066  dst = (int16_t *)pic->data[act_plane];
1067  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
1068  if (plane & 1)
1069  dst++;
1070  if (plane > 1)
1071  dst += pic->linesize[act_plane] >> 1;
1072  }
1073  low = s->plane[plane].l_h[6];
1074  high = s->plane[plane].l_h[7];
1075 
1076  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16 &&
1077  (lowpass_height * 2 > avctx->coded_height / 2 ||
1078  lowpass_width * 2 > avctx->coded_width / 2 )
1079  ) {
1080  ret = AVERROR_INVALIDDATA;
1081  goto end;
1082  }
1083 
1084  for (i = 0; i < s->plane[act_plane].height; i++) {
1085  dsp->horiz_filter_clip(dst, low, high, lowpass_width, s->bpc);
1086  if (avctx->pix_fmt == AV_PIX_FMT_GBRAP12 && act_plane == 3)
1087  process_alpha(dst, lowpass_width * 2);
1088  low += output_stride;
1089  high += output_stride;
1090  dst += dst_linesize;
1091  }
1092  } else {
1093  av_log(avctx, AV_LOG_DEBUG, "interlaced frame ? %d", pic->interlaced_frame);
1094  pic->interlaced_frame = 1;
1095  low = s->plane[plane].subband[0];
1096  high = s->plane[plane].subband[7];
1097  output = s->plane[plane].l_h[6];
1098  dsp->horiz_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1099 
1100  low = s->plane[plane].subband[8];
1101  high = s->plane[plane].subband[9];
1102  output = s->plane[plane].l_h[7];
1103  dsp->horiz_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1104 
1105  dst = (int16_t *)pic->data[act_plane];
1106  low = s->plane[plane].l_h[6];
1107  high = s->plane[plane].l_h[7];
1108  for (i = 0; i < s->plane[act_plane].height / 2; i++) {
1109  interlaced_vertical_filter(dst, low, high, lowpass_width * 2, pic->linesize[act_plane]/2, act_plane);
1110  low += output_stride * 2;
1111  high += output_stride * 2;
1112  dst += pic->linesize[act_plane];
1113  }
1114  }
1115  }
1116  } else if (s->transform_type == 2 && (avctx->internal->is_copy || s->frame_index == 1 || s->sample_type != 1)) {
1117  for (plane = 0; plane < s->planes && !ret; plane++) {
1118  int lowpass_height = s->plane[plane].band[0][0].height;
1119  int output_stride = s->plane[plane].band[0][0].a_width;
1120  int lowpass_width = s->plane[plane].band[0][0].width;
1121  int highpass_stride = s->plane[plane].band[0][1].stride;
1122  int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
1123  int16_t *low, *high, *output, *dst;
1124  ptrdiff_t dst_linesize;
1125 
1126  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
1127  act_plane = 0;
1128  dst_linesize = pic->linesize[act_plane];
1129  } else {
1130  dst_linesize = pic->linesize[act_plane] / 2;
1131  }
1132 
1133  if (lowpass_height > s->plane[plane].band[0][0].a_height || lowpass_width > s->plane[plane].band[0][0].a_width ||
1134  !highpass_stride || s->plane[plane].band[0][1].width > s->plane[plane].band[0][1].a_width ||
1135  lowpass_width < 3 || lowpass_height < 3) {
1136  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1137  ret = AVERROR(EINVAL);
1138  goto end;
1139  }
1140 
1141  av_log(avctx, AV_LOG_DEBUG, "Decoding level 1 plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
1142 
1143  low = s->plane[plane].subband[0];
1144  high = s->plane[plane].subband[2];
1145  output = s->plane[plane].l_h[0];
1146  dsp->vert_filter(output, output_stride, low, lowpass_width, high, highpass_stride, lowpass_width, lowpass_height);
1147 
1148  low = s->plane[plane].subband[1];
1149  high = s->plane[plane].subband[3];
1150  output = s->plane[plane].l_h[1];
1151  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1152 
1153  low = s->plane[plane].l_h[0];
1154  high = s->plane[plane].l_h[1];
1155  output = s->plane[plane].l_h[7];
1156  dsp->horiz_filter(output, output_stride, low, output_stride, high, output_stride, lowpass_width, lowpass_height * 2);
1157  if (s->bpc == 12) {
1158  output = s->plane[plane].l_h[7];
1159  for (i = 0; i < lowpass_height * 2; i++) {
1160  for (j = 0; j < lowpass_width * 2; j++)
1161  output[j] *= 4;
1162 
1163  output += output_stride * 2;
1164  }
1165  }
1166 
1167  lowpass_height = s->plane[plane].band[1][1].height;
1168  output_stride = s->plane[plane].band[1][1].a_width;
1169  lowpass_width = s->plane[plane].band[1][1].width;
1170  highpass_stride = s->plane[plane].band[1][1].stride;
1171 
1172  if (lowpass_height > s->plane[plane].band[1][1].a_height || lowpass_width > s->plane[plane].band[1][1].a_width ||
1173  !highpass_stride || s->plane[plane].band[1][1].width > s->plane[plane].band[1][1].a_width ||
1174  lowpass_width < 3 || lowpass_height < 3) {
1175  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1176  ret = AVERROR(EINVAL);
1177  goto end;
1178  }
1179 
1180  av_log(avctx, AV_LOG_DEBUG, "Level 2 lowpass plane %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
1181 
1182  low = s->plane[plane].l_h[7];
1183  high = s->plane[plane].subband[5];
1184  output = s->plane[plane].l_h[3];
1185  dsp->vert_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1186 
1187  low = s->plane[plane].subband[4];
1188  high = s->plane[plane].subband[6];
1189  output = s->plane[plane].l_h[4];
1190  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1191 
1192  low = s->plane[plane].l_h[3];
1193  high = s->plane[plane].l_h[4];
1194  output = s->plane[plane].l_h[7];
1195  dsp->horiz_filter(output, output_stride, low, output_stride, high, output_stride, lowpass_width, lowpass_height * 2);
1196 
1197  output = s->plane[plane].l_h[7];
1198  for (i = 0; i < lowpass_height * 2; i++) {
1199  for (j = 0; j < lowpass_width * 2; j++)
1200  output[j] *= 4;
1201  output += output_stride * 2;
1202  }
1203 
1204  low = s->plane[plane].subband[7];
1205  high = s->plane[plane].subband[9];
1206  output = s->plane[plane].l_h[3];
1207  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1208 
1209  low = s->plane[plane].subband[8];
1210  high = s->plane[plane].subband[10];
1211  output = s->plane[plane].l_h[4];
1212  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1213 
1214  low = s->plane[plane].l_h[3];
1215  high = s->plane[plane].l_h[4];
1216  output = s->plane[plane].l_h[9];
1217  dsp->horiz_filter(output, output_stride, low, output_stride, high, output_stride, lowpass_width, lowpass_height * 2);
1218 
1219  lowpass_height = s->plane[plane].band[4][1].height;
1220  output_stride = s->plane[plane].band[4][1].a_width;
1221  lowpass_width = s->plane[plane].band[4][1].width;
1222  highpass_stride = s->plane[plane].band[4][1].stride;
1223  av_log(avctx, AV_LOG_DEBUG, "temporal level %i %i %i %i\n", plane, lowpass_height, lowpass_width, highpass_stride);
1224 
1225  if (lowpass_height > s->plane[plane].band[4][1].a_height || lowpass_width > s->plane[plane].band[4][1].a_width ||
1226  !highpass_stride || s->plane[plane].band[4][1].width > s->plane[plane].band[4][1].a_width ||
1227  lowpass_width < 3 || lowpass_height < 3) {
1228  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1229  ret = AVERROR(EINVAL);
1230  goto end;
1231  }
1232 
1233  low = s->plane[plane].l_h[7];
1234  high = s->plane[plane].l_h[9];
1235  output = s->plane[plane].l_h[7];
1236  for (i = 0; i < lowpass_height; i++) {
1237  inverse_temporal_filter(low, high, lowpass_width);
1238  low += output_stride;
1239  high += output_stride;
1240  }
1241  if (s->progressive) {
1242  low = s->plane[plane].l_h[7];
1243  high = s->plane[plane].subband[15];
1244  output = s->plane[plane].l_h[6];
1245  dsp->vert_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1246 
1247  low = s->plane[plane].subband[14];
1248  high = s->plane[plane].subband[16];
1249  output = s->plane[plane].l_h[7];
1250  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1251 
1252  low = s->plane[plane].l_h[9];
1253  high = s->plane[plane].subband[12];
1254  output = s->plane[plane].l_h[8];
1255  dsp->vert_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1256 
1257  low = s->plane[plane].subband[11];
1258  high = s->plane[plane].subband[13];
1259  output = s->plane[plane].l_h[9];
1260  dsp->vert_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1261 
1262  if (s->sample_type == 1)
1263  continue;
1264 
1265  dst = (int16_t *)pic->data[act_plane];
1266  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
1267  if (plane & 1)
1268  dst++;
1269  if (plane > 1)
1270  dst += pic->linesize[act_plane] >> 1;
1271  }
1272 
1273  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16 &&
1274  (lowpass_height * 2 > avctx->coded_height / 2 ||
1275  lowpass_width * 2 > avctx->coded_width / 2 )
1276  ) {
1277  ret = AVERROR_INVALIDDATA;
1278  goto end;
1279  }
1280 
1281  low = s->plane[plane].l_h[6];
1282  high = s->plane[plane].l_h[7];
1283  for (i = 0; i < s->plane[act_plane].height; i++) {
1284  dsp->horiz_filter_clip(dst, low, high, lowpass_width, s->bpc);
1285  low += output_stride;
1286  high += output_stride;
1287  dst += dst_linesize;
1288  }
1289  } else {
1290  pic->interlaced_frame = 1;
1291  low = s->plane[plane].l_h[7];
1292  high = s->plane[plane].subband[14];
1293  output = s->plane[plane].l_h[6];
1294  dsp->horiz_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1295 
1296  low = s->plane[plane].subband[15];
1297  high = s->plane[plane].subband[16];
1298  output = s->plane[plane].l_h[7];
1299  dsp->horiz_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1300 
1301  low = s->plane[plane].l_h[9];
1302  high = s->plane[plane].subband[11];
1303  output = s->plane[plane].l_h[8];
1304  dsp->horiz_filter(output, output_stride, low, output_stride, high, highpass_stride, lowpass_width, lowpass_height);
1305 
1306  low = s->plane[plane].subband[12];
1307  high = s->plane[plane].subband[13];
1308  output = s->plane[plane].l_h[9];
1309  dsp->horiz_filter(output, output_stride, low, highpass_stride, high, highpass_stride, lowpass_width, lowpass_height);
1310 
1311  if (s->sample_type == 1)
1312  continue;
1313 
1314  dst = (int16_t *)pic->data[act_plane];
1315  low = s->plane[plane].l_h[6];
1316  high = s->plane[plane].l_h[7];
1317  for (i = 0; i < s->plane[act_plane].height / 2; i++) {
1318  interlaced_vertical_filter(dst, low, high, lowpass_width * 2, pic->linesize[act_plane]/2, act_plane);
1319  low += output_stride * 2;
1320  high += output_stride * 2;
1321  dst += pic->linesize[act_plane];
1322  }
1323  }
1324  }
1325  }
1326 
1327  if (s->transform_type == 2 && s->sample_type == 1) {
1328  int16_t *low, *high, *dst;
1329  int output_stride, lowpass_height, lowpass_width;
1330  ptrdiff_t dst_linesize;
1331 
1332  for (plane = 0; plane < s->planes; plane++) {
1333  int act_plane = plane == 1 ? 2 : plane == 2 ? 1 : plane;
1334 
1335  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
1336  act_plane = 0;
1337  dst_linesize = pic->linesize[act_plane];
1338  } else {
1339  dst_linesize = pic->linesize[act_plane] / 2;
1340  }
1341 
1342  lowpass_height = s->plane[plane].band[4][1].height;
1343  output_stride = s->plane[plane].band[4][1].a_width;
1344  lowpass_width = s->plane[plane].band[4][1].width;
1345 
1346  if (lowpass_height > s->plane[plane].band[4][1].a_height || lowpass_width > s->plane[plane].band[4][1].a_width ||
1347  s->plane[plane].band[4][1].width > s->plane[plane].band[4][1].a_width ||
1348  lowpass_width < 3 || lowpass_height < 3) {
1349  av_log(avctx, AV_LOG_ERROR, "Invalid plane dimensions\n");
1350  ret = AVERROR(EINVAL);
1351  goto end;
1352  }
1353 
1354  if (s->progressive) {
1355  dst = (int16_t *)pic->data[act_plane];
1356  low = s->plane[plane].l_h[8];
1357  high = s->plane[plane].l_h[9];
1358 
1359  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16) {
1360  if (plane & 1)
1361  dst++;
1362  if (plane > 1)
1363  dst += pic->linesize[act_plane] >> 1;
1364  }
1365 
1366  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16 &&
1367  (lowpass_height * 2 > avctx->coded_height / 2 ||
1368  lowpass_width * 2 > avctx->coded_width / 2 )
1369  ) {
1370  ret = AVERROR_INVALIDDATA;
1371  goto end;
1372  }
1373 
1374  for (i = 0; i < s->plane[act_plane].height; i++) {
1375  dsp->horiz_filter_clip(dst, low, high, lowpass_width, s->bpc);
1376  low += output_stride;
1377  high += output_stride;
1378  dst += dst_linesize;
1379  }
1380  } else {
1381  dst = (int16_t *)pic->data[act_plane];
1382  low = s->plane[plane].l_h[8];
1383  high = s->plane[plane].l_h[9];
1384  for (i = 0; i < s->plane[act_plane].height / 2; i++) {
1385  interlaced_vertical_filter(dst, low, high, lowpass_width * 2, pic->linesize[act_plane]/2, act_plane);
1386  low += output_stride * 2;
1387  high += output_stride * 2;
1388  dst += pic->linesize[act_plane];
1389  }
1390  }
1391  }
1392  }
1393 
1394  if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16)
1395  process_bayer(pic, s->bpc);
1396 end:
1397  if (ret < 0)
1398  return ret;
1399 
1400  *got_frame = 1;
1401  return avpkt->size;
1402 }
1403 
1404 static av_cold int cfhd_close(AVCodecContext *avctx)
1405 {
1406  CFHDContext *s = avctx->priv_data;
1407 
1408  free_buffers(s);
1409 
1410  ff_free_vlc(&s->vlc_9);
1411  ff_free_vlc(&s->vlc_18);
1412 
1413  return 0;
1414 }
1415 
1416 #if HAVE_THREADS
1417 static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
1418 {
1419  CFHDContext *psrc = src->priv_data;
1420  CFHDContext *pdst = dst->priv_data;
1421  int ret;
1422 
1423  if (dst == src || psrc->transform_type == 0)
1424  return 0;
1425 
1426  if (pdst->plane[0].idwt_size != psrc->plane[0].idwt_size ||
1427  pdst->a_format != psrc->a_format ||
1428  pdst->a_width != psrc->a_width ||
1429  pdst->a_height != psrc->a_height ||
1430  pdst->a_transform_type != psrc->a_transform_type)
1431  free_buffers(pdst);
1432 
1433  pdst->a_format = psrc->a_format;
1434  pdst->a_width = psrc->a_width;
1435  pdst->a_height = psrc->a_height;
1436  pdst->a_transform_type = psrc->a_transform_type;
1437  pdst->transform_type = psrc->transform_type;
1438  pdst->progressive = psrc->progressive;
1439  pdst->planes = psrc->planes;
1440 
1441  if (!pdst->plane[0].idwt_buf) {
1442  pdst->coded_width = pdst->a_width;
1443  pdst->coded_height = pdst->a_height;
1444  pdst->coded_format = pdst->a_format;
1445  pdst->transform_type = pdst->a_transform_type;
1446  ret = alloc_buffers(dst);
1447  if (ret < 0)
1448  return ret;
1449  }
1450 
1451  for (int plane = 0; plane < pdst->planes; plane++) {
1452  memcpy(pdst->plane[plane].band, psrc->plane[plane].band, sizeof(pdst->plane[plane].band));
1453  memcpy(pdst->plane[plane].idwt_buf, psrc->plane[plane].idwt_buf,
1454  pdst->plane[plane].idwt_size * sizeof(int16_t));
1455  }
1456 
1457  return 0;
1458 }
1459 #endif
1460 
1461 const AVCodec ff_cfhd_decoder = {
1462  .name = "cfhd",
1463  .long_name = NULL_IF_CONFIG_SMALL("GoPro CineForm HD"),
1464  .type = AVMEDIA_TYPE_VIDEO,
1465  .id = AV_CODEC_ID_CFHD,
1466  .priv_data_size = sizeof(CFHDContext),
1467  .init = cfhd_init,
1468  .close = cfhd_close,
1469  .decode = cfhd_decode,
1470  .update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context),
1471  .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1472  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
1473 };
ChannelNumber
@ ChannelNumber
Definition: cfhd.h:78
ChannelCount
@ ChannelCount
Definition: cfhd.h:42
AVCodec
AVCodec.
Definition: codec.h:202
stride
int stride
Definition: mace.c:144
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
FF_CODEC_CAP_INIT_THREADSAFE
#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:42
BandSecondPass
@ BandSecondPass
Definition: cfhd.h:88
level
uint8_t level
Definition: svq3.c:204
Precision
@ Precision
Definition: cfhd.h:81
Peak::level
int level
Definition: cfhd.h:135
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
r
const char * r
Definition: vf_curves.c:116
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
BandHeader
@ BandHeader
Definition: cfhd.h:76
PrescaleTable
@ PrescaleTable
Definition: cfhd.h:89
GetByteContext
Definition: bytestream.h:33
CFHDContext::progressive
int progressive
Definition: cfhd.h:162
BandHeight
@ BandHeight
Definition: cfhd.h:71
av_clip_uintp2
#define av_clip_uintp2
Definition: common.h:120
bytestream2_skipu
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
Definition: bytestream.h:174
output
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:225
get_bits_count
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:220
SampleType
int32_t SampleType
Definition: ac3enc.h:64
bytestream2_seek
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:212
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:310
CFHDDSPContext
Definition: cfhddsp.h:25
CFHDDSPContext::horiz_filter_clip
void(* horiz_filter_clip)(int16_t *output, const int16_t *low, const int16_t *high, int width, int bpc)
Definition: cfhddsp.h:36
R
#define R
Definition: huffyuvdsp.h:34
internal.h
even
Tag MUST be even
Definition: snow.txt:206
AVPacket::data
uint8_t * data
Definition: packet.h:373
CFHDContext::a_format
int a_format
Definition: cfhd.h:166
b
#define b
Definition: input.c:40
HighpassWidth
@ HighpassWidth
Definition: cfhd.h:63
data
const char data[16]
Definition: mxf.c:143
ALPHA_COMPAND_DC_OFFSET
#define ALPHA_COMPAND_DC_OFFSET
Definition: cfhd.c:40
UPDATE_CACHE
#define UPDATE_CACHE(name, gb)
Definition: get_bits.h:179
LowpassWidth
@ LowpassWidth
Definition: cfhd.h:54
cfhd_init
static av_cold int cfhd_init(AVCodecContext *avctx)
Definition: cfhd.c:43
difference_coding
static void difference_coding(int16_t *band, int width, int height)
Definition: cfhd.c:117
thread.h
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:329
planes
static const struct @320 planes[]
ff_cfhd_init_vlcs
int ff_cfhd_init_vlcs(CFHDContext *s)
Definition: cfhddata.c:276
AVCodecInternal::is_copy
int is_copy
When using frame-threaded decoding, this field is set for the first worker thread (e....
Definition: internal.h:124
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2604
VersionMajor
@ VersionMajor
Definition: cfhd.h:36
finish
static void finish(void)
Definition: movenc.c:342
init_peak_table_defaults
static void init_peak_table_defaults(CFHDContext *s)
Definition: cfhd.c:80
cfhd.h
U
#define U(x)
Definition: vp56_arith.h:37
FFSIGN
#define FFSIGN(a)
Definition: common.h:66
ff_thread_get_buffer
the pkt_dts and pkt_pts fields in AVFrame will work as usual Restrictions on codec whose streams don t reset across will not work because their bitstreams cannot be decoded in parallel *The contents of buffers must not be read before as well as code calling up to before the decode process starts Call have so the codec calls ff_thread_report set FF_CODEC_CAP_ALLOCATE_PROGRESS in AVCodec caps_internal and use ff_thread_get_buffer() to allocate frames. The frames must then be freed with ff_thread_release_buffer(). Otherwise decode directly into the user-supplied frames. Call ff_thread_report_progress() after some part of the current picture has decoded. A good place to put this is where draw_horiz_band() is called - add this if it isn 't called anywhere
DWT_LEVELS
#define DWT_LEVELS
Definition: cfhd.h:106
val
static double val(void *priv, double ch)
Definition: aeval.c:76
av_pix_fmt_get_chroma_sub_sample
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:2592
AVCodecContext::coded_height
int coded_height
Definition: avcodec.h:571
LowpassPrecision
@ LowpassPrecision
Definition: cfhd.h:58
Quantization
@ Quantization
Definition: cfhd.h:74
BandEncoding
@ BandEncoding
Definition: cfhd.h:73
SubbandNumber
@ SubbandNumber
Definition: cfhd.h:69
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_cold
#define av_cold
Definition: attributes.h:90
peak_table
static void peak_table(int16_t *band, Peak *peak, int length)
Definition: cfhd.c:129
cfhd_decode
static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: cfhd.c:375
init_get_bits8
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:678
Plane::idwt_size
int idwt_size
Definition: cfhd.h:125
process_alpha
static void process_alpha(int16_t *alpha, int width)
Definition: cfhd.c:137
AV_CODEC_ID_CFHD
@ AV_CODEC_ID_CFHD
Definition: codec_id.h:266
CLOSE_READER
#define CLOSE_READER(name, gb)
Definition: get_bits.h:150
decode
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
width
#define width
intreadwrite.h
Version
@ Version
Definition: cfhd.h:87
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:412
ALPHA_COMPAND_GAIN
#define ALPHA_COMPAND_GAIN
Definition: cfhd.c:41
TransformType
TransformType
Definition: webp.c:110
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
g
const char * g
Definition: vf_curves.c:117
PeakOffsetHigh
@ PeakOffsetHigh
Definition: cfhd.h:86
GetByteContext::buffer
const uint8_t * buffer
Definition: bytestream.h:34
VersionMinor
@ VersionMinor
Definition: cfhd.h:37
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AVCodecContext::bits_per_raw_sample
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1425
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
get_bits.h
DisplayHeight
@ DisplayHeight
Definition: cfhd.h:91
ff_free_vlc
void ff_free_vlc(VLC *vlc)
Definition: bitstream.c:431
process_bayer
static void process_bayer(AVFrame *frame, int bpc)
Definition: cfhd.c:151
FrameType
FrameType
G723.1 frame types.
Definition: g723_1.h:63
if
if(ret)
Definition: filter_design.txt:179
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:113
FrameIndex
@ FrameIndex
Definition: cfhd.h:51
InputFormat
@ InputFormat
Definition: cfhd.h:82
dequant_and_decompand
static int dequant_and_decompand(CFHDContext *s, int level, int quantisation, int codebook)
Definition: cfhd.c:109
NULL
#define NULL
Definition: coverity.c:32
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:64
run
uint8_t run
Definition: svq3.c:203
CFHDContext::planes
int planes
Definition: cfhd.h:153
CFHDDSPContext::vert_filter
void(* vert_filter)(int16_t *output, ptrdiff_t out_stride, const int16_t *low, ptrdiff_t low_stride, const int16_t *high, ptrdiff_t high_stride, int width, int height)
Definition: cfhddsp.h:31
AVCodecContext::internal
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:418
CFHDDSPContext::horiz_filter
void(* horiz_filter)(int16_t *output, ptrdiff_t out_stride, const int16_t *low, ptrdiff_t low_stride, const int16_t *high, ptrdiff_t high_stride, int width, int height)
Definition: cfhddsp.h:26
src
#define src
Definition: vp8dsp.c:255
ff_cfhd_decoder
const AVCodec ff_cfhd_decoder
Definition: cfhd.c:1461
Peak
Definition: cfhd.h:134
ONLY_IF_THREADS_ENABLED
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:156
abs
#define abs(x)
Definition: cuda_runtime.h:35
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:392
VLC_BITS
#define VLC_BITS
Definition: cfhd.h:96
HighpassHeight
@ HighpassHeight
Definition: cfhd.h:64
free_buffers
static void free_buffers(CFHDContext *s)
Definition: cfhd.c:219
bytestream2_get_bytes_left
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
bytestream2_tell
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:192
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
SUBBAND_COUNT
#define SUBBAND_COUNT
Definition: cfhd.h:97
alloc_buffers
static int alloc_buffers(AVCodecContext *avctx)
Definition: cfhd.c:246
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
Peak::base
GetByteContext base
Definition: cfhd.h:137
AVPacket::size
int size
Definition: packet.h:374
VersionRevision
@ VersionRevision
Definition: cfhd.h:38
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
BitstreamMarker
@ BitstreamMarker
Definition: cfhd.h:35
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
buffer.h
OPEN_READER
#define OPEN_READER(name, gb)
Definition: get_bits.h:139
height
#define height
CFHDContext::a_width
int a_width
Definition: cfhd.h:164
CFHDContext::coded_height
int coded_height
Definition: cfhd.h:159
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
attributes.h
VersionEdit
@ VersionEdit
Definition: cfhd.h:39
AVFrame::interlaced_frame
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:452
CFHDContext::coded_format
enum AVPixelFormat coded_format
Definition: cfhd.h:161
CFHDContext::transform_type
int transform_type
Definition: cfhd.h:157
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
SubbandCount
@ SubbandCount
Definition: cfhd.h:44
CFHDContext::plane
Plane plane[4]
Definition: cfhd.h:184
FF_CODEC_CAP_INIT_CLEANUP
#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:50
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:408
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
CFHDContext
Definition: cfhd.h:140
common.h
SubbandBand
@ SubbandBand
Definition: cfhd.h:72
SubBand::read_ok
int8_t read_ok
Definition: cfhd.h:115
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:209
update_thread_context
the pkt_dts and pkt_pts fields in AVFrame will work as usual Restrictions on codec whose streams don t reset across will not work because their bitstreams cannot be decoded in parallel *The contents of buffers must not be read before as well as code calling up to before the decode process starts Call have update_thread_context() run it in the next thread. Add AV_CODEC_CAP_FRAME_THREADS to the codec capabilities. There will be very little speed gain at this point but it should work. If there are inter-frame dependencies
SUBBAND_COUNT_3D
#define SUBBAND_COUNT_3D
Definition: cfhd.h:98
AVCodecContext::height
int height
Definition: avcodec.h:556
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:593
ImageWidth
@ ImageWidth
Definition: cfhd.h:49
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:271
avcodec.h
GET_RL_VLC
#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)
Definition: get_bits.h:739
tag
uint32_t tag
Definition: movenc.c:1595
ret
ret
Definition: filter_design.txt:187
CFHDContext::coded_width
int coded_width
Definition: cfhd.h:158
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
inverse_temporal_filter
static void inverse_temporal_filter(int16_t *low, int16_t *high, int width)
Definition: cfhd.c:208
ff_thread_finish_setup
the pkt_dts and pkt_pts fields in AVFrame will work as usual Restrictions on codec whose streams don t reset across will not work because their bitstreams cannot be decoded in parallel *The contents of buffers must not be read before as well as code calling up to before the decode process starts Call ff_thread_finish_setup() afterwards. If some code can 't be moved
PeakLevel
@ PeakLevel
Definition: cfhd.h:84
BandCodingFlags
@ BandCodingFlags
Definition: cfhd.h:83
interlaced_vertical_filter
static void interlaced_vertical_filter(int16_t *output, int16_t *low, int16_t *high, int width, int linesize, int plane)
Definition: cfhd.c:195
EncodedFormat
@ EncodedFormat
Definition: cfhd.h:90
B
#define B
Definition: huffyuvdsp.h:32
AVCodecContext
main external API structure.
Definition: avcodec.h:383
ThreadFrame
Definition: thread.h:34
init_plane_defaults
static void init_plane_defaults(CFHDContext *s)
Definition: cfhd.c:73
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
CFHDContext::a_transform_type
int a_transform_type
Definition: cfhd.h:167
ff_cfhddsp_init
av_cold void ff_cfhddsp_init(CFHDDSPContext *c, int depth, int bayer)
Definition: cfhddsp.c:105
ImageHeight
@ ImageHeight
Definition: cfhd.h:50
Plane
Definition: cfhd.h:118
BandWidth
@ BandWidth
Definition: cfhd.h:70
factor
static const int factor[16]
Definition: vf_pp7.c:76
SampleFlags
@ SampleFlags
Definition: cfhd.h:79
AVCodecContext::coded_width
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:571
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
Plane::idwt_buf
int16_t * idwt_buf
Definition: cfhd.h:123
DWT_LEVELS_3D
#define DWT_LEVELS_3D
Definition: cfhd.h:107
ff_set_dimensions
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:86
Plane::band
SubBand band[DWT_LEVELS_3D][4]
Definition: cfhd.h:131
LowpassHeight
@ LowpassHeight
Definition: cfhd.h:55
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
alpha
static const int16_t alpha[]
Definition: ilbcdata.h:55
AVPacket
This structure stores compressed data.
Definition: packet.h:350
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:410
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
bytestream.h
imgutils.h
bytestream2_init
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:353
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:78
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AV_PIX_FMT_BAYER_RGGB16
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:416
SampleIndexTable
@ SampleIndexTable
Definition: cfhd.h:34
cfhd_close
static av_cold int cfhd_close(AVCodecContext *avctx)
Definition: cfhd.c:1404
init_frame_defaults
static void init_frame_defaults(CFHDContext *s)
Definition: cfhd.c:87
channel
channel
Definition: ebur128.h:39
PeakOffsetLow
@ PeakOffsetLow
Definition: cfhd.h:85
codebook
static const unsigned codebook[256][2]
Definition: cfhdenc.c:42
CFHDContext::a_height
int a_height
Definition: cfhd.h:165
re
float re
Definition: fft.c:78
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