FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/exr.c
Date: 2025-08-19 23:55:23
Exec Total Coverage
Lines: 854 1324 64.5%
Functions: 23 31 74.2%
Branches: 457 803 56.9%
Line Branch Exec Source
1 /*
2 * OpenEXR (.exr) image decoder
3 * Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
4 * Copyright (c) 2009 Jimmy Christensen
5 *
6 * B44/B44A, Tile, UINT32 added by Jokyo Images support by CNC - French National Center for Cinema
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file
27 * OpenEXR decoder
28 * @author Jimmy Christensen
29 *
30 * For more information on the OpenEXR format, visit:
31 * http://openexr.com/
32 */
33
34 #include <float.h>
35 #include <zlib.h>
36
37 #include "libavutil/avassert.h"
38 #include "libavutil/common.h"
39 #include "libavutil/csp.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/mem.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/float2half.h"
46 #include "libavutil/half2float.h"
47
48 #include "avcodec.h"
49 #include "bytestream.h"
50
51 #if HAVE_BIGENDIAN
52 #include "bswapdsp.h"
53 #endif
54
55 #include "codec_internal.h"
56 #include "decode.h"
57 #include "exrdsp.h"
58 #include "get_bits.h"
59 #include "mathops.h"
60 #include "thread.h"
61
62 enum ExrCompr {
63 EXR_RAW,
64 EXR_RLE,
65 EXR_ZIP1,
66 EXR_ZIP16,
67 EXR_PIZ,
68 EXR_PXR24,
69 EXR_B44,
70 EXR_B44A,
71 EXR_DWAA,
72 EXR_DWAB,
73 EXR_UNKN,
74 };
75
76 enum ExrPixelType {
77 EXR_UINT,
78 EXR_HALF,
79 EXR_FLOAT,
80 EXR_UNKNOWN,
81 };
82
83 enum ExrTileLevelMode {
84 EXR_TILE_LEVEL_ONE,
85 EXR_TILE_LEVEL_MIPMAP,
86 EXR_TILE_LEVEL_RIPMAP,
87 EXR_TILE_LEVEL_UNKNOWN,
88 };
89
90 enum ExrTileLevelRound {
91 EXR_TILE_ROUND_UP,
92 EXR_TILE_ROUND_DOWN,
93 EXR_TILE_ROUND_UNKNOWN,
94 };
95
96 typedef struct HuffEntry {
97 uint8_t len;
98 uint16_t sym;
99 uint32_t code;
100 } HuffEntry;
101
102 typedef struct EXRChannel {
103 int xsub, ysub;
104 enum ExrPixelType pixel_type;
105 } EXRChannel;
106
107 typedef struct EXRTileAttribute {
108 int32_t xSize;
109 int32_t ySize;
110 enum ExrTileLevelMode level_mode;
111 enum ExrTileLevelRound level_round;
112 } EXRTileAttribute;
113
114 typedef struct EXRThreadData {
115 uint8_t *uncompressed_data;
116 int uncompressed_size;
117
118 uint8_t *tmp;
119 int tmp_size;
120
121 uint8_t *bitmap;
122 uint16_t *lut;
123
124 uint8_t *ac_data;
125 unsigned ac_size;
126
127 uint8_t *dc_data;
128 unsigned dc_size;
129
130 uint8_t *rle_data;
131 unsigned rle_size;
132
133 uint8_t *rle_raw_data;
134 unsigned rle_raw_size;
135
136 float block[3][64];
137
138 int ysize, xsize;
139
140 int channel_line_size;
141
142 int run_sym;
143 HuffEntry *he;
144 uint64_t *freq;
145 VLC vlc;
146 } EXRThreadData;
147
148 typedef struct EXRContext {
149 AVClass *class;
150 AVFrame *picture;
151 AVCodecContext *avctx;
152 ExrDSPContext dsp;
153
154 #if HAVE_BIGENDIAN
155 BswapDSPContext bbdsp;
156 #endif
157
158 enum ExrCompr compression;
159 enum ExrPixelType pixel_type;
160 int channel_offsets[4]; // 0 = red, 1 = green, 2 = blue and 3 = alpha
161 const AVPixFmtDescriptor *desc;
162
163 int w, h;
164 uint32_t sar;
165 int32_t xmax, xmin;
166 int32_t ymax, ymin;
167 uint32_t xdelta, ydelta;
168
169 int scan_lines_per_block;
170
171 EXRTileAttribute tile_attr; /* header data attribute of tile */
172 int is_tile; /* 0 if scanline, 1 if tile */
173 int is_multipart;
174 int current_part;
175
176 int is_luma;/* 1 if there is an Y plane */
177
178 GetByteContext gb;
179 const uint8_t *buf;
180 int buf_size;
181
182 EXRChannel *channels;
183 int nb_channels;
184 int current_channel_offset;
185 uint32_t chunk_count;
186
187 EXRThreadData *thread_data;
188
189 const char *layer;
190 int selected_part;
191
192
193 uint8_t *offset_table;
194
195 #if FF_API_EXR_GAMMA
196 enum AVColorTransferCharacteristic apply_trc_type;
197 float gamma;
198 uint16_t gamma_table[65536];
199 Float2HalfTables f2h_tables;
200 #endif
201
202 Half2FloatTables h2f_tables;
203 } EXRContext;
204
205 12853 static int zip_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
206 int uncompressed_size, EXRThreadData *td)
207 {
208 12853 unsigned long dest_len = uncompressed_size;
209
210
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 12853 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK ||
211
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 12853 dest_len != uncompressed_size)
212 ✗ return AVERROR_INVALIDDATA;
213
214 av_assert1(uncompressed_size % 2 == 0);
215
216 12853 s->dsp.predictor(td->tmp, uncompressed_size);
217 12853 s->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
218
219 12853 return 0;
220 }
221
222 4848 static int rle(uint8_t *dst, const uint8_t *src,
223 int compressed_size, int uncompressed_size)
224 {
225 4848 uint8_t *d = dst;
226 4848 const int8_t *s = src;
227 4848 int ssize = compressed_size;
228 4848 int dsize = uncompressed_size;
229 4848 uint8_t *dend = d + dsize;
230 int count;
231
232
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 676771 while (ssize > 0) {
233 671923 count = *s++;
234
235
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 671923 if (count < 0) {
236 501696 count = -count;
237
238
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239
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 501696 (ssize -= count + 1) < 0)
240 ✗ return AVERROR_INVALIDDATA;
241
242
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 21708325 while (count--)
243 21206629 *d++ = *s++;
244 } else {
245 170227 count++;
246
247
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248
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249 ✗ return AVERROR_INVALIDDATA;
250
251
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 4913430 while (count--)
252 4743203 *d++ = *s;
253
254 170227 s++;
255 }
256 }
257
258
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 4848 if (dend != d)
259 ✗ return AVERROR_INVALIDDATA;
260
261 4848 return 0;
262 }
263
264 4848 static int rle_uncompress(const EXRContext *ctx, const uint8_t *src, int compressed_size,
265 int uncompressed_size, EXRThreadData *td)
266 {
267 4848 rle(td->tmp, src, compressed_size, uncompressed_size);
268
269 av_assert1(uncompressed_size % 2 == 0);
270
271 4848 ctx->dsp.predictor(td->tmp, uncompressed_size);
272 4848 ctx->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
273
274 4848 return 0;
275 }
276
277 #define USHORT_RANGE (1 << 16)
278 #define BITMAP_SIZE (1 << 13)
279
280 30 static uint16_t reverse_lut(const uint8_t *bitmap, uint16_t *lut)
281 {
282 30 int i, k = 0;
283
284
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285
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 1966080 if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7))))
286 15385 lut[k++] = i;
287
288 30 i = k - 1;
289
290 30 memset(lut + k, 0, (USHORT_RANGE - k) * 2);
291
292 30 return i;
293 }
294
295 30 static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
296 {
297 int i;
298
299
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 820752 for (i = 0; i < dsize; ++i)
300 820722 dst[i] = lut[dst[i]];
301 30 }
302
303 #define HUF_ENCBITS 16 // literal (value) bit length
304 #define HUF_ENCSIZE ((1 << HUF_ENCBITS) + 1) // encoding table size
305
306 30 static void huf_canonical_code_table(uint64_t *freq)
307 {
308 30 uint64_t c, n[59] = { 0 };
309 int i;
310
311
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 1966140 for (i = 0; i < HUF_ENCSIZE; i++)
312 1966110 n[freq[i]] += 1;
313
314 30 c = 0;
315
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 1770 for (i = 58; i > 0; --i) {
316 1740 uint64_t nc = ((c + n[i]) >> 1);
317 1740 n[i] = c;
318 1740 c = nc;
319 }
320
321
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 1966140 for (i = 0; i < HUF_ENCSIZE; ++i) {
322 1966110 int l = freq[i];
323
324
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 1966110 if (l > 0)
325 6417 freq[i] = l | (n[l]++ << 6);
326 }
327 30 }
328
329 #define SHORT_ZEROCODE_RUN 59
330 #define LONG_ZEROCODE_RUN 63
331 #define SHORTEST_LONG_RUN (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN)
332 #define LONGEST_LONG_RUN (255 + SHORTEST_LONG_RUN)
333
334 30 static int huf_unpack_enc_table(GetByteContext *gb,
335 int32_t im, int32_t iM, uint64_t *freq)
336 {
337 GetBitContext gbit;
338 30 int ret = init_get_bits8(&gbit, gb->buffer, bytestream2_get_bytes_left(gb));
339
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 30 if (ret < 0)
340 ✗ return ret;
341
342
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 16636 for (; im <= iM; im++) {
343 int l;
344
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 16606 if (get_bits_left(&gbit) < 6)
345 ✗ return AVERROR_INVALIDDATA;
346 16606 l = freq[im] = get_bits(&gbit, 6);
347
348
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 16606 if (l == LONG_ZEROCODE_RUN) {
349 8339 int zerun = get_bits(&gbit, 8) + SHORTEST_LONG_RUN;
350
351
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 8339 if (im + zerun > iM + 1)
352 ✗ return AVERROR_INVALIDDATA;
353
354
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 1963965 while (zerun--)
355 1955626 freq[im++] = 0;
356
357 8339 im--;
358
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 8267 } else if (l >= SHORT_ZEROCODE_RUN) {
359 1053 int zerun = l - SHORT_ZEROCODE_RUN + 2;
360
361
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 1053 if (im + zerun > iM + 1)
362 ✗ return AVERROR_INVALIDDATA;
363
364
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 4323 while (zerun--)
365 3270 freq[im++] = 0;
366
367 1053 im--;
368 }
369 }
370
371 30 bytestream2_skip(gb, (get_bits_count(&gbit) + 7) / 8);
372 30 huf_canonical_code_table(freq);
373
374 30 return 0;
375 }
376
377 30 static int huf_build_dec_table(const EXRContext *s,
378 EXRThreadData *td, int im, int iM)
379 {
380 30 int j = 0;
381
382 30 td->run_sym = -1;
383
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 1966110 for (int i = im; i < iM; i++) {
384 1966080 td->he[j].sym = i;
385 1966080 td->he[j].len = td->freq[i] & 63;
386 1966080 td->he[j].code = td->freq[i] >> 6;
387
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 1966080 if (td->he[j].len > 32) {
388 ✗ avpriv_request_sample(s->avctx, "Too big code length");
389 ✗ return AVERROR_PATCHWELCOME;
390 }
391
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 1966080 if (td->he[j].len > 0)
392 6387 j++;
393 else
394 1959693 td->run_sym = i;
395 }
396
397
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 30 if (im > 0)
398 ✗ td->run_sym = 0;
399
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 30 else if (iM < 65535)
400 ✗ td->run_sym = 65535;
401
402
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 30 if (td->run_sym == -1) {
403 ✗ avpriv_request_sample(s->avctx, "No place for run symbol");
404 ✗ return AVERROR_PATCHWELCOME;
405 }
406
407 30 td->he[j].sym = td->run_sym;
408 30 td->he[j].len = td->freq[iM] & 63;
409
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 30 if (td->he[j].len > 32) {
410 ✗ avpriv_request_sample(s->avctx, "Too big code length");
411 ✗ return AVERROR_PATCHWELCOME;
412 }
413 30 td->he[j].code = td->freq[iM] >> 6;
414 30 j++;
415
416 30 ff_vlc_free(&td->vlc);
417 30 return ff_vlc_init_sparse(&td->vlc, 12, j,
418 30 &td->he[0].len, sizeof(td->he[0]), sizeof(td->he[0].len),
419 30 &td->he[0].code, sizeof(td->he[0]), sizeof(td->he[0].code),
420 30 &td->he[0].sym, sizeof(td->he[0]), sizeof(td->he[0].sym), 0);
421 }
422
423 30 static int huf_decode(VLC *vlc, GetByteContext *gb, int nbits, int run_sym,
424 int no, uint16_t *out)
425 {
426 GetBitContext gbit;
427 30 int oe = 0;
428
429 30 init_get_bits(&gbit, gb->buffer, nbits);
430
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 213511 while (get_bits_left(&gbit) > 0 && oe < no) {
431 213481 uint16_t x = get_vlc2(&gbit, vlc->table, 12, 3);
432
433
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 213481 if (x == run_sym) {
434 3387 int run = get_bits(&gbit, 8);
435 uint16_t fill;
436
437
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 3387 if (oe == 0 || oe + run > no)
438 ✗ return AVERROR_INVALIDDATA;
439
440 3387 fill = out[oe - 1];
441
442
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 614015 while (run-- > 0)
443 610628 out[oe++] = fill;
444 } else {
445 210094 out[oe++] = x;
446 }
447 }
448
449 30 return 0;
450 }
451
452 30 static int huf_uncompress(const EXRContext *s,
453 EXRThreadData *td,
454 GetByteContext *gb,
455 uint16_t *dst, int dst_size)
456 {
457 int32_t im, iM;
458 uint32_t nBits;
459 int ret;
460
461 30 im = bytestream2_get_le32(gb);
462 30 iM = bytestream2_get_le32(gb);
463 30 bytestream2_skip(gb, 4);
464 30 nBits = bytestream2_get_le32(gb);
465
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 30 if (im < 0 || im >= HUF_ENCSIZE ||
466
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 30 iM < 0 || iM >= HUF_ENCSIZE)
467 ✗ return AVERROR_INVALIDDATA;
468
469 30 bytestream2_skip(gb, 4);
470
471
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 30 if (!td->freq)
472 7 td->freq = av_malloc_array(HUF_ENCSIZE, sizeof(*td->freq));
473
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 30 if (!td->he)
474 7 td->he = av_calloc(HUF_ENCSIZE, sizeof(*td->he));
475
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 30 if (!td->freq || !td->he) {
476 ✗ ret = AVERROR(ENOMEM);
477 ✗ return ret;
478 }
479
480 30 memset(td->freq, 0, sizeof(*td->freq) * HUF_ENCSIZE);
481
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 30 if ((ret = huf_unpack_enc_table(gb, im, iM, td->freq)) < 0)
482 ✗ return ret;
483
484
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 30 if (nBits > 8 * bytestream2_get_bytes_left(gb)) {
485 ✗ ret = AVERROR_INVALIDDATA;
486 ✗ return ret;
487 }
488
489
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 30 if ((ret = huf_build_dec_table(s, td, im, iM)) < 0)
490 ✗ return ret;
491 30 return huf_decode(&td->vlc, gb, nBits, td->run_sym, dst_size, dst);
492 }
493
494 1091709 static inline void wdec14(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
495 {
496 1091709 int16_t ls = l;
497 1091709 int16_t hs = h;
498 1091709 int hi = hs;
499 1091709 int ai = ls + (hi & 1) + (hi >> 1);
500 1091709 int16_t as = ai;
501 1091709 int16_t bs = ai - hi;
502
503 1091709 *a = as;
504 1091709 *b = bs;
505 1091709 }
506
507 #define NBITS 16
508 #define A_OFFSET (1 << (NBITS - 1))
509 #define MOD_MASK ((1 << NBITS) - 1)
510
511 ✗ static inline void wdec16(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
512 {
513 ✗ int m = l;
514 ✗ int d = h;
515 ✗ int bb = (m - (d >> 1)) & MOD_MASK;
516 ✗ int aa = (d + bb - A_OFFSET) & MOD_MASK;
517 ✗ *b = bb;
518 ✗ *a = aa;
519 ✗ }
520
521 102 static void wav_decode(uint16_t *in, int nx, int ox,
522 int ny, int oy, uint16_t mx)
523 {
524 102 int w14 = (mx < (1 << 14));
525 102 int n = (nx > ny) ? ny : nx;
526 102 int p = 1;
527 int p2;
528
529
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 693 while (p <= n)
530 591 p <<= 1;
531
532 102 p >>= 1;
533 102 p2 = p;
534 102 p >>= 1;
535
536
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 591 while (p >= 1) {
537 489 uint16_t *py = in;
538 489 uint16_t *ey = in + oy * (ny - p2);
539 uint16_t i00, i01, i10, i11;
540 489 int oy1 = oy * p;
541 489 int oy2 = oy * p2;
542 489 int ox1 = ox * p;
543 489 int ox2 = ox * p2;
544
545
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 3429 for (; py <= ey; py += oy2) {
546 2940 uint16_t *px = py;
547 2940 uint16_t *ex = py + ox * (nx - p2);
548
549
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 275691 for (; px <= ex; px += ox2) {
550 272751 uint16_t *p01 = px + ox1;
551 272751 uint16_t *p10 = px + oy1;
552 272751 uint16_t *p11 = p10 + ox1;
553
554
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 272751 if (w14) {
555 272751 wdec14(*px, *p10, &i00, &i10);
556 272751 wdec14(*p01, *p11, &i01, &i11);
557 272751 wdec14(i00, i01, px, p01);
558 272751 wdec14(i10, i11, p10, p11);
559 } else {
560 ✗ wdec16(*px, *p10, &i00, &i10);
561 ✗ wdec16(*p01, *p11, &i01, &i11);
562 ✗ wdec16(i00, i01, px, p01);
563 ✗ wdec16(i10, i11, p10, p11);
564 }
565 }
566
567
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 2940 if (nx & p) {
568 324 uint16_t *p10 = px + oy1;
569
570
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 324 if (w14)
571 324 wdec14(*px, *p10, &i00, p10);
572 else
573 ✗ wdec16(*px, *p10, &i00, p10);
574
575 324 *px = i00;
576 }
577 }
578
579
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 489 if (ny & p) {
580 15 uint16_t *px = py;
581 15 uint16_t *ex = py + ox * (nx - p2);
582
583
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 396 for (; px <= ex; px += ox2) {
584 381 uint16_t *p01 = px + ox1;
585
586
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 381 if (w14)
587 381 wdec14(*px, *p01, &i00, p01);
588 else
589 ✗ wdec16(*px, *p01, &i00, p01);
590
591 381 *px = i00;
592 }
593 }
594
595 489 p2 = p;
596 489 p >>= 1;
597 }
598 102 }
599
600 30 static int piz_uncompress(const EXRContext *s, const uint8_t *src, int ssize,
601 int dsize, EXRThreadData *td)
602 {
603 GetByteContext gb;
604 uint16_t maxval, min_non_zero, max_non_zero;
605 uint16_t *ptr;
606 30 uint16_t *tmp = (uint16_t *)td->tmp;
607 uint16_t *out;
608 uint16_t *in;
609 int ret, i, j;
610 int pixel_half_size;/* 1 for half, 2 for float and uint32 */
611 EXRChannel *channel;
612 int tmp_offset;
613
614
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 30 if (!td->bitmap)
615 7 td->bitmap = av_malloc(BITMAP_SIZE);
616
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 30 if (!td->lut)
617 7 td->lut = av_malloc(1 << 17);
618
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 30 if (!td->bitmap || !td->lut) {
619 ✗ av_freep(&td->bitmap);
620 ✗ av_freep(&td->lut);
621 ✗ return AVERROR(ENOMEM);
622 }
623
624 30 bytestream2_init(&gb, src, ssize);
625 30 min_non_zero = bytestream2_get_le16(&gb);
626 30 max_non_zero = bytestream2_get_le16(&gb);
627
628
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 30 if (max_non_zero >= BITMAP_SIZE)
629 ✗ return AVERROR_INVALIDDATA;
630
631 30 memset(td->bitmap, 0, FFMIN(min_non_zero, BITMAP_SIZE));
632
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 30 if (min_non_zero <= max_non_zero)
633 30 bytestream2_get_buffer(&gb, td->bitmap + min_non_zero,
634 30 max_non_zero - min_non_zero + 1);
635 30 memset(td->bitmap + max_non_zero + 1, 0, BITMAP_SIZE - max_non_zero - 1);
636
637 30 maxval = reverse_lut(td->bitmap, td->lut);
638
639 30 bytestream2_skip(&gb, 4);
640 30 ret = huf_uncompress(s, td, &gb, tmp, dsize / sizeof(uint16_t));
641
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 30 if (ret)
642 ✗ return ret;
643
644 30 ptr = tmp;
645
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 120 for (i = 0; i < s->nb_channels; i++) {
646 90 channel = &s->channels[i];
647
648
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 90 if (channel->pixel_type == EXR_HALF)
649 78 pixel_half_size = 1;
650 else
651 12 pixel_half_size = 2;
652
653
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 192 for (j = 0; j < pixel_half_size; j++)
654 102 wav_decode(ptr + j, td->xsize, pixel_half_size, td->ysize,
655 102 td->xsize * pixel_half_size, maxval);
656 90 ptr += td->xsize * td->ysize * pixel_half_size;
657 }
658
659 30 apply_lut(td->lut, tmp, dsize / sizeof(uint16_t));
660
661 30 out = (uint16_t *)td->uncompressed_data;
662
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 921 for (i = 0; i < td->ysize; i++) {
663 891 tmp_offset = 0;
664
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 3564 for (j = 0; j < s->nb_channels; j++) {
665 2673 channel = &s->channels[j];
666
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 2673 if (channel->pixel_type == EXR_HALF)
667 2289 pixel_half_size = 1;
668 else
669 384 pixel_half_size = 2;
670
671 2673 in = tmp + tmp_offset * td->xsize * td->ysize + i * td->xsize * pixel_half_size;
672 2673 tmp_offset += pixel_half_size;
673
674 #if HAVE_BIGENDIAN
675 s->bbdsp.bswap16_buf(out, in, td->xsize * pixel_half_size);
676 #else
677 2673 memcpy(out, in, td->xsize * 2 * pixel_half_size);
678 #endif
679 2673 out += td->xsize * pixel_half_size;
680 }
681 }
682
683 30 return 0;
684 }
685
686 61 static int pxr24_uncompress(const EXRContext *s, const uint8_t *src,
687 int compressed_size, int uncompressed_size,
688 EXRThreadData *td)
689 {
690 61 unsigned long dest_len, expected_len = 0;
691 61 const uint8_t *in = td->tmp;
692 uint8_t *out;
693 int c, i, j;
694
695
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 279 for (i = 0; i < s->nb_channels; i++) {
696
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 218 if (s->channels[i].pixel_type == EXR_FLOAT) {
697 31 expected_len += (td->xsize * td->ysize * 3);/* PRX 24 store float in 24 bit instead of 32 */
698
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 187 } else if (s->channels[i].pixel_type == EXR_HALF) {
699 181 expected_len += (td->xsize * td->ysize * 2);
700 } else {//UINT 32
701 6 expected_len += (td->xsize * td->ysize * 4);
702 }
703 }
704
705 61 dest_len = expected_len;
706
707
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 61 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK) {
708 ✗ return AVERROR_INVALIDDATA;
709
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 61 } else if (dest_len != expected_len) {
710 ✗ return AVERROR_INVALIDDATA;
711 }
712
713 61 out = td->uncompressed_data;
714
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 950 for (i = 0; i < td->ysize; i++)
715
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 3839 for (c = 0; c < s->nb_channels; c++) {
716 2950 EXRChannel *channel = &s->channels[c];
717 const uint8_t *ptr[4];
718 2950 uint32_t pixel = 0;
719
720
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 2950 switch (channel->pixel_type) {
721 248 case EXR_FLOAT:
722 248 ptr[0] = in;
723 248 ptr[1] = ptr[0] + td->xsize;
724 248 ptr[2] = ptr[1] + td->xsize;
725 248 in = ptr[2] + td->xsize;
726
727
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 3224 for (j = 0; j < td->xsize; ++j) {
728 2976 uint32_t diff = ((unsigned)*(ptr[0]++) << 24) |
729 2976 (*(ptr[1]++) << 16) |
730 2976 (*(ptr[2]++) << 8);
731 2976 pixel += diff;
732 2976 bytestream_put_le32(&out, pixel);
733 }
734 248 break;
735 2651 case EXR_HALF:
736 2651 ptr[0] = in;
737 2651 ptr[1] = ptr[0] + td->xsize;
738 2651 in = ptr[1] + td->xsize;
739
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 1925690 for (j = 0; j < td->xsize; j++) {
740 1923039 uint32_t diff = (*(ptr[0]++) << 8) | *(ptr[1]++);
741
742 1923039 pixel += diff;
743 1923039 bytestream_put_le16(&out, pixel);
744 }
745 2651 break;
746 51 case EXR_UINT:
747 51 ptr[0] = in;
748 51 ptr[1] = ptr[0] + s->xdelta;
749 51 ptr[2] = ptr[1] + s->xdelta;
750 51 ptr[3] = ptr[2] + s->xdelta;
751 51 in = ptr[3] + s->xdelta;
752
753
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 690 for (j = 0; j < s->xdelta; ++j) {
754 639 uint32_t diff = ((uint32_t)*(ptr[0]++) << 24) |
755 639 (*(ptr[1]++) << 16) |
756 639 (*(ptr[2]++) << 8 ) |
757 639 (*(ptr[3]++));
758 639 pixel += diff;
759 639 bytestream_put_le32(&out, pixel);
760 }
761 51 break;
762 ✗ default:
763 ✗ return AVERROR_INVALIDDATA;
764 }
765 }
766
767 61 return 0;
768 }
769
770 59279 static void unpack_14(const uint8_t b[14], uint16_t s[16])
771 {
772 59279 uint16_t shift = (b[ 2] >> 2) & 15;
773 59279 uint16_t bias = (0x20 << shift);
774 int i;
775
776 59279 s[ 0] = (b[0] << 8) | b[1];
777
778 59279 s[ 4] = s[ 0] + ((((b[ 2] << 4) | (b[ 3] >> 4)) & 0x3f) << shift) - bias;
779 59279 s[ 8] = s[ 4] + ((((b[ 3] << 2) | (b[ 4] >> 6)) & 0x3f) << shift) - bias;
780 59279 s[12] = s[ 8] + ((b[ 4] & 0x3f) << shift) - bias;
781
782 59279 s[ 1] = s[ 0] + ((b[ 5] >> 2) << shift) - bias;
783 59279 s[ 5] = s[ 4] + ((((b[ 5] << 4) | (b[ 6] >> 4)) & 0x3f) << shift) - bias;
784 59279 s[ 9] = s[ 8] + ((((b[ 6] << 2) | (b[ 7] >> 6)) & 0x3f) << shift) - bias;
785 59279 s[13] = s[12] + ((b[ 7] & 0x3f) << shift) - bias;
786
787 59279 s[ 2] = s[ 1] + ((b[ 8] >> 2) << shift) - bias;
788 59279 s[ 6] = s[ 5] + ((((b[ 8] << 4) | (b[ 9] >> 4)) & 0x3f) << shift) - bias;
789 59279 s[10] = s[ 9] + ((((b[ 9] << 2) | (b[10] >> 6)) & 0x3f) << shift) - bias;
790 59279 s[14] = s[13] + ((b[10] & 0x3f) << shift) - bias;
791
792 59279 s[ 3] = s[ 2] + ((b[11] >> 2) << shift) - bias;
793 59279 s[ 7] = s[ 6] + ((((b[11] << 4) | (b[12] >> 4)) & 0x3f) << shift) - bias;
794 59279 s[11] = s[10] + ((((b[12] << 2) | (b[13] >> 6)) & 0x3f) << shift) - bias;
795 59279 s[15] = s[14] + ((b[13] & 0x3f) << shift) - bias;
796
797
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 1007743 for (i = 0; i < 16; ++i) {
798
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 948464 if (s[i] & 0x8000)
799 942347 s[i] &= 0x7fff;
800 else
801 6117 s[i] = ~s[i];
802 }
803 59279 }
804
805 106 static void unpack_3(const uint8_t b[3], uint16_t s[16])
806 {
807 int i;
808
809 106 s[0] = (b[0] << 8) | b[1];
810
811
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 106 if (s[0] & 0x8000)
812 105 s[0] &= 0x7fff;
813 else
814 1 s[0] = ~s[0];
815
816
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 1696 for (i = 1; i < 16; i++)
817 1590 s[i] = s[0];
818 106 }
819
820
821 23 static int b44_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
822 int uncompressed_size, EXRThreadData *td) {
823 23 const int8_t *sr = src;
824 23 int stay_to_uncompress = compressed_size;
825 int nb_b44_block_w, nb_b44_block_h;
826 int index_tl_x, index_tl_y, index_out, index_tmp;
827 uint16_t tmp_buffer[16]; /* B44 use 4x4 half float pixel */
828 int c, iY, iX, y, x;
829 23 int target_channel_offset = 0;
830
831 /* calc B44 block count */
832 23 nb_b44_block_w = td->xsize / 4;
833
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 23 if ((td->xsize % 4) != 0)
834 13 nb_b44_block_w++;
835
836 23 nb_b44_block_h = td->ysize / 4;
837
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 23 if ((td->ysize % 4) != 0)
838 6 nb_b44_block_h++;
839
840
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 156 for (c = 0; c < s->nb_channels; c++) {
841
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 133 if (s->channels[c].pixel_type == EXR_HALF) {/* B44 only compress half float data */
842
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 459 for (iY = 0; iY < nb_b44_block_h; iY++) {
843
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 59759 for (iX = 0; iX < nb_b44_block_w; iX++) {/* For each B44 block */
844
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 59385 if (stay_to_uncompress < 3)
845 ✗ return AVERROR_INVALIDDATA;
846
847
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 59385 if (src[compressed_size - stay_to_uncompress + 2] == 0xfc) { /* B44A block */
848 106 unpack_3(sr, tmp_buffer);
849 106 sr += 3;
850 106 stay_to_uncompress -= 3;
851 } else {/* B44 Block */
852
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 59279 if (stay_to_uncompress < 14)
853 ✗ return AVERROR_INVALIDDATA;
854 59279 unpack_14(sr, tmp_buffer);
855 59279 sr += 14;
856 59279 stay_to_uncompress -= 14;
857 }
858
859 /* copy data to uncompress buffer (B44 block can exceed target resolution)*/
860 59385 index_tl_x = iX * 4;
861 59385 index_tl_y = iY * 4;
862
863
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 295761 for (y = index_tl_y; y < FFMIN(index_tl_y + 4, td->ysize); y++) {
864
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 1180363 for (x = index_tl_x; x < FFMIN(index_tl_x + 4, td->xsize); x++) {
865 943987 index_out = target_channel_offset * td->xsize + y * td->channel_line_size + 2 * x;
866 943987 index_tmp = (y-index_tl_y) * 4 + (x-index_tl_x);
867 943987 td->uncompressed_data[index_out] = tmp_buffer[index_tmp] & 0xff;
868 943987 td->uncompressed_data[index_out + 1] = tmp_buffer[index_tmp] >> 8;
869 }
870 }
871 }
872 }
873 85 target_channel_offset += 2;
874 } else {/* Float or UINT 32 channel */
875
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 48 if (stay_to_uncompress < td->ysize * td->xsize * 4)
876 ✗ return AVERROR_INVALIDDATA;
877
878
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 448 for (y = 0; y < td->ysize; y++) {
879 400 index_out = target_channel_offset * td->xsize + y * td->channel_line_size;
880 400 memcpy(&td->uncompressed_data[index_out], sr, td->xsize * 4);
881 400 sr += td->xsize * 4;
882 }
883 48 target_channel_offset += 4;
884
885 48 stay_to_uncompress -= td->ysize * td->xsize * 4;
886 }
887 }
888
889 23 return 0;
890 }
891
892 ✗ static int ac_uncompress(const EXRContext *s, GetByteContext *gb, float *block)
893 {
894 ✗ int ret = 0, n = 1;
895
896 ✗ while (n < 64) {
897 ✗ uint16_t val = bytestream2_get_ne16(gb);
898
899 ✗ if (val == 0xff00) {
900 ✗ n = 64;
901 ✗ } else if ((val >> 8) == 0xff) {
902 ✗ n += val & 0xff;
903 } else {
904 ✗ ret = n;
905 ✗ block[ff_zigzag_direct[n]] = av_int2float(half2float(val, &s->h2f_tables));
906 ✗ n++;
907 }
908 }
909
910 ✗ return ret;
911 }
912
913 ✗ static void idct_1d(float *blk, int step)
914 {
915 ✗ const float a = .5f * cosf( M_PI / 4.f);
916 ✗ const float b = .5f * cosf( M_PI / 16.f);
917 ✗ const float c = .5f * cosf( M_PI / 8.f);
918 ✗ const float d = .5f * cosf(3.f*M_PI / 16.f);
919 ✗ const float e = .5f * cosf(5.f*M_PI / 16.f);
920 ✗ const float f = .5f * cosf(3.f*M_PI / 8.f);
921 ✗ const float g = .5f * cosf(7.f*M_PI / 16.f);
922
923 float alpha[4], beta[4], theta[4], gamma[4];
924
925 ✗ alpha[0] = c * blk[2 * step];
926 ✗ alpha[1] = f * blk[2 * step];
927 ✗ alpha[2] = c * blk[6 * step];
928 ✗ alpha[3] = f * blk[6 * step];
929
930 ✗ beta[0] = b * blk[1 * step] + d * blk[3 * step] + e * blk[5 * step] + g * blk[7 * step];
931 ✗ beta[1] = d * blk[1 * step] - g * blk[3 * step] - b * blk[5 * step] - e * blk[7 * step];
932 ✗ beta[2] = e * blk[1 * step] - b * blk[3 * step] + g * blk[5 * step] + d * blk[7 * step];
933 ✗ beta[3] = g * blk[1 * step] - e * blk[3 * step] + d * blk[5 * step] - b * blk[7 * step];
934
935 ✗ theta[0] = a * (blk[0 * step] + blk[4 * step]);
936 ✗ theta[3] = a * (blk[0 * step] - blk[4 * step]);
937
938 ✗ theta[1] = alpha[0] + alpha[3];
939 ✗ theta[2] = alpha[1] - alpha[2];
940
941 ✗ gamma[0] = theta[0] + theta[1];
942 ✗ gamma[1] = theta[3] + theta[2];
943 ✗ gamma[2] = theta[3] - theta[2];
944 ✗ gamma[3] = theta[0] - theta[1];
945
946 ✗ blk[0 * step] = gamma[0] + beta[0];
947 ✗ blk[1 * step] = gamma[1] + beta[1];
948 ✗ blk[2 * step] = gamma[2] + beta[2];
949 ✗ blk[3 * step] = gamma[3] + beta[3];
950
951 ✗ blk[4 * step] = gamma[3] - beta[3];
952 ✗ blk[5 * step] = gamma[2] - beta[2];
953 ✗ blk[6 * step] = gamma[1] - beta[1];
954 ✗ blk[7 * step] = gamma[0] - beta[0];
955 ✗ }
956
957 ✗ static void dct_inverse(float *block)
958 {
959 ✗ for (int i = 0; i < 8; i++)
960 ✗ idct_1d(block + i, 8);
961
962 ✗ for (int i = 0; i < 8; i++) {
963 ✗ idct_1d(block, 1);
964 ✗ block += 8;
965 }
966 ✗ }
967
968 ✗ static void convert(float y, float u, float v,
969 float *b, float *g, float *r)
970 {
971 ✗ *r = y + 1.5747f * v;
972 ✗ *g = y - 0.1873f * u - 0.4682f * v;
973 ✗ *b = y + 1.8556f * u;
974 ✗ }
975
976 ✗ static float to_linear(float x, float scale)
977 {
978 ✗ float ax = fabsf(x);
979
980 ✗ if (ax <= 1.f) {
981 ✗ return FFSIGN(x) * powf(ax, 2.2f * scale);
982 } else {
983 ✗ const float log_base = expf(2.2f * scale);
984
985 ✗ return FFSIGN(x) * powf(log_base, ax - 1.f);
986 }
987 }
988
989 ✗ static int dwa_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
990 int uncompressed_size, EXRThreadData *td)
991 {
992 int64_t version, lo_usize, lo_size;
993 int64_t ac_size, dc_size, rle_usize, rle_csize, rle_raw_size;
994 int64_t ac_count, dc_count, ac_compression;
995 ✗ const int dc_w = td->xsize >> 3;
996 ✗ const int dc_h = td->ysize >> 3;
997 GetByteContext gb, agb;
998 int skip, ret;
999 ✗ int have_rle = 0;
1000
1001 ✗ if (compressed_size <= 88)
1002 ✗ return AVERROR_INVALIDDATA;
1003
1004 ✗ version = AV_RL64(src + 0);
1005 ✗ if (version != 2)
1006 ✗ return AVERROR_INVALIDDATA;
1007
1008 ✗ lo_usize = AV_RL64(src + 8);
1009 ✗ lo_size = AV_RL64(src + 16);
1010 ✗ ac_size = AV_RL64(src + 24);
1011 ✗ dc_size = AV_RL64(src + 32);
1012 ✗ rle_csize = AV_RL64(src + 40);
1013 ✗ rle_usize = AV_RL64(src + 48);
1014 ✗ rle_raw_size = AV_RL64(src + 56);
1015 ✗ ac_count = AV_RL64(src + 64);
1016 ✗ dc_count = AV_RL64(src + 72);
1017 ✗ ac_compression = AV_RL64(src + 80);
1018
1019 ✗ if ( compressed_size < (uint64_t)(lo_size | ac_size | dc_size | rle_csize) || compressed_size < 88LL + lo_size + ac_size + dc_size + rle_csize
1020 ✗ || ac_count > (uint64_t)INT_MAX/2
1021 )
1022 ✗ return AVERROR_INVALIDDATA;
1023
1024 ✗ if ((uint64_t)rle_raw_size > INT_MAX) {
1025 ✗ avpriv_request_sample(s->avctx, "Too big rle_raw_size");
1026 ✗ return AVERROR_INVALIDDATA;
1027 }
1028
1029 ✗ bytestream2_init(&gb, src + 88, compressed_size - 88);
1030 ✗ skip = bytestream2_get_le16(&gb);
1031 ✗ if (skip < 2)
1032 ✗ return AVERROR_INVALIDDATA;
1033
1034 ✗ bytestream2_skip(&gb, skip - 2);
1035
1036 ✗ if (lo_size > 0) {
1037 ✗ if (lo_usize > uncompressed_size)
1038 ✗ return AVERROR_INVALIDDATA;
1039 ✗ bytestream2_skip(&gb, lo_size);
1040 }
1041
1042 ✗ if (ac_size > 0) {
1043 unsigned long dest_len;
1044 ✗ GetByteContext agb = gb;
1045
1046 ✗ if (ac_count > 3LL * td->xsize * s->scan_lines_per_block)
1047 ✗ return AVERROR_INVALIDDATA;
1048
1049 ✗ dest_len = ac_count * 2LL;
1050
1051 ✗ av_fast_padded_malloc(&td->ac_data, &td->ac_size, dest_len);
1052 ✗ if (!td->ac_data)
1053 ✗ return AVERROR(ENOMEM);
1054
1055 ✗ switch (ac_compression) {
1056 ✗ case 0:
1057 ✗ ret = huf_uncompress(s, td, &agb, (int16_t *)td->ac_data, ac_count);
1058 ✗ if (ret < 0)
1059 ✗ return ret;
1060 ✗ break;
1061 ✗ case 1:
1062 ✗ if (uncompress(td->ac_data, &dest_len, agb.buffer, ac_size) != Z_OK ||
1063 ✗ dest_len != ac_count * 2LL)
1064 ✗ return AVERROR_INVALIDDATA;
1065 ✗ break;
1066 ✗ default:
1067 ✗ return AVERROR_INVALIDDATA;
1068 }
1069
1070 ✗ bytestream2_skip(&gb, ac_size);
1071 }
1072
1073 {
1074 unsigned long dest_len;
1075 ✗ GetByteContext agb = gb;
1076
1077 ✗ if (dc_count != dc_w * dc_h * 3)
1078 ✗ return AVERROR_INVALIDDATA;
1079
1080 ✗ dest_len = dc_count * 2LL;
1081
1082 ✗ av_fast_padded_malloc(&td->dc_data, &td->dc_size, FFALIGN(dest_len, 64) * 2);
1083 ✗ if (!td->dc_data)
1084 ✗ return AVERROR(ENOMEM);
1085
1086 ✗ if (uncompress(td->dc_data + FFALIGN(dest_len, 64), &dest_len, agb.buffer, dc_size) != Z_OK ||
1087 ✗ (dest_len != dc_count * 2LL))
1088 ✗ return AVERROR_INVALIDDATA;
1089
1090 ✗ s->dsp.predictor(td->dc_data + FFALIGN(dest_len, 64), dest_len);
1091 ✗ s->dsp.reorder_pixels(td->dc_data, td->dc_data + FFALIGN(dest_len, 64), dest_len);
1092
1093 ✗ bytestream2_skip(&gb, dc_size);
1094 }
1095
1096 ✗ if (rle_raw_size > 0 && rle_csize > 0 && rle_usize > 0) {
1097 ✗ unsigned long dest_len = rle_usize;
1098
1099 ✗ if (2LL * td->xsize * td->ysize > rle_raw_size)
1100 ✗ return AVERROR_INVALIDDATA;
1101
1102 ✗ av_fast_padded_malloc(&td->rle_data, &td->rle_size, rle_usize);
1103 ✗ if (!td->rle_data)
1104 ✗ return AVERROR(ENOMEM);
1105
1106 ✗ av_fast_padded_malloc(&td->rle_raw_data, &td->rle_raw_size, rle_raw_size);
1107 ✗ if (!td->rle_raw_data)
1108 ✗ return AVERROR(ENOMEM);
1109
1110 ✗ if (uncompress(td->rle_data, &dest_len, gb.buffer, rle_csize) != Z_OK ||
1111 ✗ (dest_len != rle_usize))
1112 ✗ return AVERROR_INVALIDDATA;
1113
1114 ✗ ret = rle(td->rle_raw_data, td->rle_data, rle_usize, rle_raw_size);
1115 ✗ if (ret < 0)
1116 ✗ return ret;
1117 ✗ bytestream2_skip(&gb, rle_csize);
1118
1119 ✗ have_rle = 1;
1120 }
1121
1122 ✗ bytestream2_init(&agb, td->ac_data, ac_count * 2);
1123
1124 ✗ for (int y = 0; y < td->ysize; y += 8) {
1125 ✗ for (int x = 0; x < td->xsize; x += 8) {
1126 ✗ const int o = s->nb_channels == 4;
1127 ✗ float *yb = td->block[0];
1128 ✗ float *ub = td->block[1];
1129 ✗ float *vb = td->block[2];
1130 ✗ int bw = FFMIN(8, td->xsize - x);
1131 ✗ int bh = FFMIN(8, td->ysize - y);
1132
1133 ✗ memset(td->block, 0, sizeof(td->block));
1134
1135 ✗ for (int j = 0; j < 3; j++) {
1136 ✗ float *block = td->block[j];
1137 ✗ const int idx = (x >> 3) + (y >> 3) * dc_w + dc_w * dc_h * j;
1138 ✗ uint16_t *dc = (uint16_t *)td->dc_data;
1139 union av_intfloat32 dc_val;
1140
1141 ✗ dc_val.i = half2float(dc[idx], &s->h2f_tables);
1142
1143 ✗ block[0] = dc_val.f;
1144 ✗ ac_uncompress(s, &agb, block);
1145 ✗ dct_inverse(block);
1146 }
1147
1148 ✗ if (s->pixel_type == EXR_HALF) {
1149 ✗ uint16_t *bo = ((uint16_t *)td->uncompressed_data) +
1150 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1151 ✗ uint16_t *go = ((uint16_t *)td->uncompressed_data) +
1152 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1153 ✗ uint16_t *ro = ((uint16_t *)td->uncompressed_data) +
1154 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1155
1156 ✗ for (int yy = 0; yy < bh; yy++) {
1157 ✗ for (int xx = 0; xx < bw; xx++) {
1158 ✗ const int idx = xx + yy * 8;
1159 float b, g, r;
1160
1161 ✗ convert(yb[idx], ub[idx], vb[idx], &b, &g, &r);
1162
1163 ✗ bo[xx] = float2half(av_float2int(to_linear(b, 1.f)), &s->f2h_tables);
1164 ✗ go[xx] = float2half(av_float2int(to_linear(g, 1.f)), &s->f2h_tables);
1165 ✗ ro[xx] = float2half(av_float2int(to_linear(r, 1.f)), &s->f2h_tables);
1166 }
1167
1168 ✗ bo += td->xsize * s->nb_channels;
1169 ✗ go += td->xsize * s->nb_channels;
1170 ✗ ro += td->xsize * s->nb_channels;
1171 }
1172 } else {
1173 ✗ float *bo = ((float *)td->uncompressed_data) +
1174 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1175 ✗ float *go = ((float *)td->uncompressed_data) +
1176 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1177 ✗ float *ro = ((float *)td->uncompressed_data) +
1178 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1179
1180 ✗ for (int yy = 0; yy < bh; yy++) {
1181 ✗ for (int xx = 0; xx < bw; xx++) {
1182 ✗ const int idx = xx + yy * 8;
1183
1184 ✗ convert(yb[idx], ub[idx], vb[idx], &bo[xx], &go[xx], &ro[xx]);
1185
1186 ✗ bo[xx] = to_linear(bo[xx], 1.f);
1187 ✗ go[xx] = to_linear(go[xx], 1.f);
1188 ✗ ro[xx] = to_linear(ro[xx], 1.f);
1189 }
1190
1191 ✗ bo += td->xsize * s->nb_channels;
1192 ✗ go += td->xsize * s->nb_channels;
1193 ✗ ro += td->xsize * s->nb_channels;
1194 }
1195 }
1196 }
1197 }
1198
1199 ✗ if (s->nb_channels < 4)
1200 ✗ return 0;
1201
1202 ✗ if (s->pixel_type == EXR_HALF) {
1203 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1204 ✗ uint16_t *ao = ((uint16_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1205 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1206 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1207
1208 ✗ for (int x = 0; x < td->xsize; x++)
1209 ✗ ao[x] = ai0[x] | (ai1[x] << 8);
1210 }
1211 } else {
1212 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1213 ✗ uint32_t *ao = ((uint32_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1214 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1215 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1216
1217 ✗ for (int x = 0; x < td->xsize; x++) {
1218 ✗ uint16_t ha = ai0[x] | (ai1[x] << 8);
1219
1220 ✗ ao[x] = half2float(ha, &s->h2f_tables);
1221 }
1222 }
1223 }
1224
1225 ✗ return 0;
1226 }
1227
1228 37267 static int decode_block(AVCodecContext *avctx, void *tdata,
1229 int jobnr, int threadnr)
1230 {
1231 37267 const EXRContext *s = avctx->priv_data;
1232 37267 AVFrame *const p = s->picture;
1233 37267 EXRThreadData *td = &s->thread_data[threadnr];
1234 37267 const uint8_t *channel_buffer[4] = { 0 };
1235 37267 const uint8_t *buf = s->buf;
1236 uint64_t line_offset, uncompressed_size;
1237 uint8_t *ptr;
1238 uint32_t data_size;
1239 37267 int line, col = 0;
1240 uint64_t tile_x, tile_y, tile_level_x, tile_level_y;
1241 const uint8_t *src;
1242 37267 int step = s->desc->comp[0].step;
1243 37267 int bxmin = 0, axmax = 0, window_xoffset = 0;
1244 int window_xmin, window_xmax, window_ymin, window_ymax;
1245 int data_xoffset, data_yoffset, data_window_offset, xsize, ysize;
1246 37267 int i, x, buf_size = s->buf_size;
1247 int c, rgb_channel_count;
1248 #if FF_API_EXR_GAMMA
1249 37267 float one_gamma = 1.0f / s->gamma;
1250 37267 av_csp_trc_function trc_func = av_csp_trc_func_from_id(s->apply_trc_type);
1251 #endif
1252 int ret;
1253
1254 37267 line_offset = AV_RL64(s->gb.buffer + jobnr * 8);
1255
1256
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 37267 if (s->is_tile) {
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 104 if (buf_size < 20 || line_offset > buf_size - 20)
1258 ✗ return AVERROR_INVALIDDATA;
1259
1260 104 src = buf + line_offset + 20;
1261
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 104 if (s->is_multipart)
1262 ✗ src += 4;
1263
1264 104 tile_x = AV_RL32(src - 20);
1265 104 tile_y = AV_RL32(src - 16);
1266 104 tile_level_x = AV_RL32(src - 12);
1267 104 tile_level_y = AV_RL32(src - 8);
1268
1269 104 data_size = AV_RL32(src - 4);
1270
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 104 if (data_size <= 0 || data_size > buf_size - line_offset - 20)
1271 ✗ return AVERROR_INVALIDDATA;
1272
1273
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 104 if (tile_level_x || tile_level_y) { /* tile level, is not the full res level */
1274 ✗ avpriv_report_missing_feature(s->avctx, "Subres tile before full res tile");
1275 ✗ return AVERROR_PATCHWELCOME;
1276 }
1277
1278
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 104 if (tile_x && s->tile_attr.xSize + (int64_t)FFMAX(s->xmin, 0) >= INT_MAX / tile_x )
1279 ✗ return AVERROR_INVALIDDATA;
1280
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 104 if (tile_y && s->tile_attr.ySize + (int64_t)FFMAX(s->ymin, 0) >= INT_MAX / tile_y )
1281 ✗ return AVERROR_INVALIDDATA;
1282
1283 104 line = s->ymin + s->tile_attr.ySize * tile_y;
1284 104 col = s->tile_attr.xSize * tile_x;
1285
1286
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 104 if (line < s->ymin || line > s->ymax ||
1287
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 104 s->xmin + col < s->xmin || s->xmin + col > s->xmax)
1288 ✗ return AVERROR_INVALIDDATA;
1289
1290 104 td->ysize = FFMIN(s->tile_attr.ySize, s->ydelta - tile_y * s->tile_attr.ySize);
1291 104 td->xsize = FFMIN(s->tile_attr.xSize, s->xdelta - tile_x * s->tile_attr.xSize);
1292
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 208 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1294 104 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1295 ✗ return AVERROR_INVALIDDATA;
1296
1297 104 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1298 104 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1299 } else {
1300
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 37163 if (buf_size < 8 || line_offset > buf_size - 8)
1301 ✗ return AVERROR_INVALIDDATA;
1302
1303 37163 src = buf + line_offset + 8;
1304
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 37163 if (s->is_multipart)
1305 ✗ src += 4;
1306 37163 line = AV_RL32(src - 8);
1307
1308
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 37163 if (line < s->ymin || line > s->ymax)
1309 ✗ return AVERROR_INVALIDDATA;
1310
1311 37163 data_size = AV_RL32(src - 4);
1312
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 37163 if (data_size <= 0 || data_size > buf_size - line_offset - 8)
1313 ✗ return AVERROR_INVALIDDATA;
1314
1315 37163 td->ysize = FFMIN(s->scan_lines_per_block, s->ymax - line + 1); /* s->ydelta - line ?? */
1316 37163 td->xsize = s->xdelta;
1317
1318
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 74326 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1319 37163 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1320 ✗ return AVERROR_INVALIDDATA;
1321
1322 37163 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1323 37163 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1324
1325
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 37163 if ((s->compression == EXR_RAW && (data_size != uncompressed_size ||
1326
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 11927 line_offset > buf_size - uncompressed_size)) ||
1327
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 37163 (s->compression != EXR_RAW && (data_size > uncompressed_size ||
1328
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 25236 line_offset > buf_size - data_size))) {
1329 ✗ return AVERROR_INVALIDDATA;
1330 }
1331 }
1332
1333 37267 window_xmin = FFMIN(avctx->width, FFMAX(0, s->xmin + col));
1334 37267 window_xmax = FFMIN(avctx->width, FFMAX(0, s->xmin + col + td->xsize));
1335 37267 window_ymin = FFMIN(avctx->height, FFMAX(0, line ));
1336 37267 window_ymax = FFMIN(avctx->height, FFMAX(0, line + td->ysize));
1337 37267 xsize = window_xmax - window_xmin;
1338 37267 ysize = window_ymax - window_ymin;
1339
1340 /* tile or scanline not visible skip decoding */
1341
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 37267 if (xsize <= 0 || ysize <= 0)
1342 433 return 0;
1343
1344 /* is the first tile or is a scanline */
1345
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 36834 if(col == 0) {
1346 36794 window_xmin = 0;
1347 /* pixels to add at the left of the display window */
1348 36794 window_xoffset = FFMAX(0, s->xmin);
1349 /* bytes to add at the left of the display window */
1350 36794 bxmin = window_xoffset * step;
1351 }
1352
1353 /* is the last tile or is a scanline */
1354
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 36834 if(col + td->xsize == s->xdelta) {
1355 36794 window_xmax = avctx->width;
1356 /* bytes to add at the right of the display window */
1357 36794 axmax = FFMAX(0, (avctx->width - (s->xmax + 1))) * step;
1358 }
1359
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 36834 if (avctx->max_pixels && uncompressed_size > avctx->max_pixels * 16LL)
1361 ✗ return AVERROR_INVALIDDATA;
1362
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 36834 if (data_size < uncompressed_size || s->is_tile) { /* td->tmp is use for tile reorganization */
1364 17828 av_fast_padded_malloc(&td->tmp, &td->tmp_size, uncompressed_size);
1365
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 17828 if (!td->tmp)
1366 ✗ return AVERROR(ENOMEM);
1367 }
1368
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 36834 if (data_size < uncompressed_size) {
1370 17815 av_fast_padded_malloc(&td->uncompressed_data,
1371 17815 &td->uncompressed_size, uncompressed_size + 64);/* Force 64 padding for AVX2 reorder_pixels dst */
1372
1373
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 17815 if (!td->uncompressed_data)
1374 ✗ return AVERROR(ENOMEM);
1375
1376 17815 ret = AVERROR_INVALIDDATA;
1377
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 17815 switch (s->compression) {
1378 12853 case EXR_ZIP1:
1379 case EXR_ZIP16:
1380 12853 ret = zip_uncompress(s, src, data_size, uncompressed_size, td);
1381 12853 break;
1382 30 case EXR_PIZ:
1383 30 ret = piz_uncompress(s, src, data_size, uncompressed_size, td);
1384 30 break;
1385 61 case EXR_PXR24:
1386 61 ret = pxr24_uncompress(s, src, data_size, uncompressed_size, td);
1387 61 break;
1388 4848 case EXR_RLE:
1389 4848 ret = rle_uncompress(s, src, data_size, uncompressed_size, td);
1390 4848 break;
1391 23 case EXR_B44:
1392 case EXR_B44A:
1393 23 ret = b44_uncompress(s, src, data_size, uncompressed_size, td);
1394 23 break;
1395 ✗ case EXR_DWAA:
1396 case EXR_DWAB:
1397 ✗ ret = dwa_uncompress(s, src, data_size, uncompressed_size, td);
1398 ✗ break;
1399 }
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 17815 if (ret < 0) {
1401 ✗ av_log(avctx, AV_LOG_ERROR, "decode_block() failed.\n");
1402 ✗ return ret;
1403 }
1404 17815 src = td->uncompressed_data;
1405 }
1406
1407 /* offsets to crop data outside display window */
1408
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 36834 data_xoffset = FFABS(FFMIN(0, s->xmin + col)) * (s->pixel_type == EXR_HALF ? 2 : 4);
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 36834 data_yoffset = FFABS(FFMIN(0, line));
1410 36834 data_window_offset = (data_yoffset * td->channel_line_size) + data_xoffset;
1411
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 36834 if (s->channel_offsets[3] >= 0)
1413 13595 channel_buffer[3] = src + (td->xsize * s->channel_offsets[3]) + data_window_offset;
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 36834 if (!s->is_luma) {
1415 25358 channel_buffer[0] = src + (td->xsize * s->channel_offsets[0]) + data_window_offset;
1416 25358 channel_buffer[1] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1417 25358 channel_buffer[2] = src + (td->xsize * s->channel_offsets[2]) + data_window_offset;
1418 25358 rgb_channel_count = 3;
1419 } else { /* put y data in the first channel_buffer and if needed, alpha in the second */
1420 11476 channel_buffer[0] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1421
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 11476 if (!(s->desc->flags & AV_PIX_FMT_FLAG_PLANAR))
1422 11476 channel_buffer[1] = channel_buffer[3];
1423 11476 rgb_channel_count = 1;
1424 }
1425
1426
2/2
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 36834 if (s->desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
1427
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 137939 for (c = 0; c < s->desc->nb_components; c++) {
1428 101115 int plane = s->desc->comp[c].plane;
1429 101115 ptr = p->data[plane] + window_ymin * p->linesize[plane] + (window_xmin * step) + s->desc->comp[c].offset;
1430
1431
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 247623 for (i = 0; i < ysize; i++, ptr += p->linesize[plane]) {
1432 146508 const uint8_t *src = channel_buffer[c];
1433 146508 uint8_t *ptr_x = ptr + window_xoffset * step;
1434
1435 // Zero out the start if xmin is not 0
1436
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 146508 if (s->desc->flags & AV_PIX_FMT_FLAG_PLANAR || !c)
1437 146500 memset(ptr, 0, bxmin);
1438
1439
2/2
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 146508 if (s->pixel_type == EXR_FLOAT) {
1440 // 32-bit
1441 #if FF_API_EXR_GAMMA
1442
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 121876 if (trc_func && (!c || (c < 3 && s->desc->flags & AV_PIX_FMT_FLAG_PLANAR))) {
1443 ✗ for (int x = 0; x < xsize; x++, ptr_x += step) {
1444 ✗ float f = av_int2float(bytestream_get_le32(&src));
1445 ✗ AV_WN32A(ptr_x, av_float2int(trc_func(f)));
1446 }
1447
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 121876 } else if (one_gamma != 1.f) {
1448 ✗ for (int x = 0; x < xsize; x++, ptr_x += step) {
1449 ✗ float f = av_int2float(bytestream_get_le32(&src));
1450 ✗ if (f > 0.0f && c < 3) /* avoid negative values */
1451 ✗ f = powf(f, one_gamma);
1452 ✗ AV_WN32A(ptr_x, av_float2int(f));
1453 }
1454 } else
1455 #endif
1456
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 42372700 for (int x = 0; x < xsize; x++, ptr_x += step)
1457 42250824 AV_WN32A(ptr_x, bytestream_get_le32(&src));
1458
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 24632 } else if (s->pixel_type == EXR_HALF) {
1459 // 16-bit
1460 #if FF_API_EXR_GAMMA
1461
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 24632 if (one_gamma != 1.f || (trc_func && (!c || (c < 3 && s->desc->flags & AV_PIX_FMT_FLAG_PLANAR)))) {
1462 ✗ for (int x = 0; x < xsize; x++, ptr_x += step)
1463 ✗ AV_WN16A(ptr_x, s->gamma_table[bytestream_get_le16(&src)]);
1464 } else
1465 #endif
1466
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 10538537 for (int x = 0; x < xsize; x++, ptr_x += step)
1467 10513905 AV_WN16A(ptr_x, bytestream_get_le16(&src));
1468 }
1469
1470 // Zero out the end if xmax+1 is not w
1471 146508 memset(ptr_x, 0, axmax);
1472 146508 channel_buffer[c] += td->channel_line_size;
1473 }
1474 }
1475 } else {
1476
1477 av_assert1(s->pixel_type == EXR_UINT);
1478 10 ptr = p->data[0] + window_ymin * p->linesize[0] + (window_xmin * s->desc->nb_components * 2);
1479
1480
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 185 for (i = 0; i < ysize; i++, ptr += p->linesize[0]) {
1481
1482 const uint8_t * a;
1483 const uint8_t *rgb[3];
1484 uint16_t *ptr_x;
1485
1486
2/2
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 700 for (c = 0; c < rgb_channel_count; c++) {
1487 525 rgb[c] = channel_buffer[c];
1488 }
1489
1490
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 175 if (channel_buffer[3])
1491 ✗ a = channel_buffer[3];
1492
1493 175 ptr_x = (uint16_t *) ptr;
1494
1495 // Zero out the start if xmin is not 0
1496 175 memset(ptr_x, 0, bxmin);
1497 175 ptr_x += window_xoffset * s->desc->nb_components;
1498
1499
2/2
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 5484 for (x = 0; x < xsize; x++) {
1500
2/2
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 21236 for (c = 0; c < rgb_channel_count; c++) {
1501 15927 *ptr_x++ = bytestream_get_le32(&rgb[c]) >> 16;
1502 }
1503
1504
1/2
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✓ Branch 1 taken 5309 times.
 5309 if (channel_buffer[3])
1505 ✗ *ptr_x++ = bytestream_get_le32(&a) >> 16;
1506 }
1507
1508 // Zero out the end if xmax+1 is not w
1509 175 memset(ptr_x, 0, axmax);
1510
1511 175 channel_buffer[0] += td->channel_line_size;
1512 175 channel_buffer[1] += td->channel_line_size;
1513 175 channel_buffer[2] += td->channel_line_size;
1514
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 175 if (channel_buffer[3])
1515 ✗ channel_buffer[3] += td->channel_line_size;
1516 }
1517 }
1518
1519 36834 return 0;
1520 }
1521
1522 ✗ static void skip_header_chunk(EXRContext *s)
1523 {
1524 ✗ GetByteContext *gb = &s->gb;
1525
1526 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1527 ✗ if (!bytestream2_peek_byte(gb))
1528 ✗ break;
1529
1530 // Process unknown variables
1531 ✗ for (int i = 0; i < 2; i++) // value_name and value_type
1532 ✗ while (bytestream2_get_byte(gb) != 0);
1533
1534 // Skip variable length
1535 ✗ bytestream2_skip(gb, bytestream2_get_le32(gb));
1536 }
1537 ✗ }
1538
1539 /**
1540 * Check if the variable name corresponds to its data type.
1541 *
1542 * @param s the EXRContext
1543 * @param value_name name of the variable to check
1544 * @param value_type type of the variable to check
1545 * @param minimum_length minimum length of the variable data
1546 *
1547 * @return bytes to read containing variable data
1548 * -1 if variable is not found
1549 * 0 if buffer ended prematurely
1550 */
1551 32478 static int check_header_variable(EXRContext *s,
1552 const char *value_name,
1553 const char *value_type,
1554 unsigned int minimum_length)
1555 {
1556 32478 GetByteContext *gb = &s->gb;
1557 32478 int var_size = -1;
1558
1559
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✗ Branch 2 not taken.
 32478 if (bytestream2_get_bytes_left(gb) >= minimum_length &&
1560
2/2
✓ Branch 0 taken 2166 times.
✓ Branch 1 taken 30312 times.
 32478 !strcmp(gb->buffer, value_name)) {
1561 // found value_name, jump to value_type (null terminated strings)
1562 2166 gb->buffer += strlen(value_name) + 1;
1563
1/2
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✗ Branch 1 not taken.
 2166 if (!strcmp(gb->buffer, value_type)) {
1564 2166 gb->buffer += strlen(value_type) + 1;
1565 2166 var_size = bytestream2_get_le32(gb);
1566 // don't go read past boundaries
1567
1/2
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✓ Branch 2 taken 2166 times.
 2166 if (var_size > bytestream2_get_bytes_left(gb))
1568 ✗ var_size = 0;
1569 } else {
1570 // value_type not found, reset the buffer
1571 ✗ gb->buffer -= strlen(value_name) + 1;
1572 ✗ av_log(s->avctx, AV_LOG_WARNING,
1573 "Unknown data type %s for header variable %s.\n",
1574 value_type, value_name);
1575 }
1576 }
1577
1578 32478 return var_size;
1579 }
1580
1581 316 static int decode_header(EXRContext *s, AVFrame *frame)
1582 {
1583 316 AVDictionary *metadata = NULL;
1584 316 GetByteContext *gb = &s->gb;
1585 int magic_number, version, flags;
1586 316 int layer_match = 0;
1587 int ret;
1588 316 int dup_channels = 0;
1589
1590 316 s->current_channel_offset = 0;
1591 316 s->xmin = ~0;
1592 316 s->xmax = ~0;
1593 316 s->ymin = ~0;
1594 316 s->ymax = ~0;
1595 316 s->xdelta = ~0;
1596 316 s->ydelta = ~0;
1597 316 s->channel_offsets[0] = -1;
1598 316 s->channel_offsets[1] = -1;
1599 316 s->channel_offsets[2] = -1;
1600 316 s->channel_offsets[3] = -1;
1601 316 s->pixel_type = EXR_UNKNOWN;
1602 316 s->compression = EXR_UNKN;
1603 316 s->nb_channels = 0;
1604 316 s->w = 0;
1605 316 s->h = 0;
1606 316 s->tile_attr.xSize = -1;
1607 316 s->tile_attr.ySize = -1;
1608 316 s->is_tile = 0;
1609 316 s->is_multipart = 0;
1610 316 s->is_luma = 0;
1611 316 s->current_part = 0;
1612
1613
1/2
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✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) < 10) {
1614 ✗ av_log(s->avctx, AV_LOG_ERROR, "Header too short to parse.\n");
1615 ✗ return AVERROR_INVALIDDATA;
1616 }
1617
1618 316 magic_number = bytestream2_get_le32(gb);
1619
1/2
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 316 if (magic_number != 20000630) {
1620 /* As per documentation of OpenEXR, it is supposed to be
1621 * int 20000630 little-endian */
1622 ✗ av_log(s->avctx, AV_LOG_ERROR, "Wrong magic number %d.\n", magic_number);
1623 ✗ return AVERROR_INVALIDDATA;
1624 }
1625
1626 316 version = bytestream2_get_byte(gb);
1627
1/2
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 316 if (version != 2) {
1628 ✗ avpriv_report_missing_feature(s->avctx, "Version %d", version);
1629 ✗ return AVERROR_PATCHWELCOME;
1630 }
1631
1632 316 flags = bytestream2_get_le24(gb);
1633
1634
2/2
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 316 if (flags & 0x02)
1635 44 s->is_tile = 1;
1636
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 316 if (flags & 0x10)
1637 ✗ s->is_multipart = 1;
1638
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 316 if (flags & 0x08) {
1639 ✗ avpriv_report_missing_feature(s->avctx, "deep data");
1640 ✗ return AVERROR_PATCHWELCOME;
1641 }
1642
1643 // Parse the header
1644
1/2
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 4396 while (bytestream2_get_bytes_left(gb) > 0) {
1645 int var_size;
1646
1647
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 4396 while (s->is_multipart && s->current_part < s->selected_part &&
1648 ✗ bytestream2_get_bytes_left(gb) > 0) {
1649 ✗ if (bytestream2_peek_byte(gb)) {
1650 ✗ skip_header_chunk(s);
1651 } else {
1652 ✗ bytestream2_skip(gb, 1);
1653 ✗ if (!bytestream2_peek_byte(gb))
1654 ✗ break;
1655 }
1656 ✗ bytestream2_skip(gb, 1);
1657 ✗ s->current_part++;
1658 }
1659
1660
2/2
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✓ Branch 2 taken 4080 times.
 4396 if (!bytestream2_peek_byte(gb)) {
1661
1/2
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✗ Branch 1 not taken.
 316 if (!s->is_multipart)
1662 316 break;
1663 ✗ bytestream2_skip(gb, 1);
1664 ✗ if (s->current_part == s->selected_part) {
1665 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1666 ✗ if (bytestream2_peek_byte(gb)) {
1667 ✗ skip_header_chunk(s);
1668 } else {
1669 ✗ bytestream2_skip(gb, 1);
1670 ✗ if (!bytestream2_peek_byte(gb))
1671 ✗ break;
1672 }
1673 }
1674 }
1675 ✗ if (!bytestream2_peek_byte(gb))
1676 ✗ break;
1677 ✗ s->current_part++;
1678 }
1679
1680
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3764 times.
 4080 if ((var_size = check_header_variable(s, "channels",
1681 316 "chlist", 38)) >= 0) {
1682 GetByteContext ch_gb;
1683
1/2
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 316 if (!var_size) {
1684 ✗ ret = AVERROR_INVALIDDATA;
1685 ✗ goto fail;
1686 }
1687
1688 316 bytestream2_init(&ch_gb, gb->buffer, var_size);
1689
1690
2/2
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✓ Branch 2 taken 316 times.
 1528 while (bytestream2_get_bytes_left(&ch_gb) >= 19) {
1691 EXRChannel *channel;
1692 enum ExrPixelType current_pixel_type;
1693 1212 int channel_index = -1;
1694 int xsub, ysub;
1695
1696
2/2
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✓ Branch 1 taken 940 times.
 1212 if (strcmp(s->layer, "") != 0) {
1697
2/2
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✓ Branch 1 taken 122 times.
 272 if (strncmp(ch_gb.buffer, s->layer, strlen(s->layer)) == 0) {
1698 150 layer_match = 1;
1699 150 av_log(s->avctx, AV_LOG_INFO,
1700 "Channel match layer : %s.\n", ch_gb.buffer);
1701 150 ch_gb.buffer += strlen(s->layer);
1702
1/2
✓ Branch 0 taken 150 times.
✗ Branch 1 not taken.
 150 if (*ch_gb.buffer == '.')
1703 150 ch_gb.buffer++; /* skip dot if not given */
1704 } else {
1705 122 layer_match = 0;
1706 122 av_log(s->avctx, AV_LOG_INFO,
1707 "Channel doesn't match layer : %s.\n", ch_gb.buffer);
1708 }
1709 } else {
1710 940 layer_match = 1;
1711 }
1712
1713
2/2
✓ Branch 0 taken 1090 times.
✓ Branch 1 taken 122 times.
 1212 if (layer_match) { /* only search channel if the layer match is valid */
1714
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✗ Branch 4 not taken.
 1926 if (!av_strcasecmp(ch_gb.buffer, "R") ||
1715
1/2
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 1672 !av_strcasecmp(ch_gb.buffer, "X") ||
1716 836 !av_strcasecmp(ch_gb.buffer, "U")) {
1717 254 channel_index = 0;
1718 254 s->is_luma = 0;
1719
3/4
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✗ Branch 3 not taken.
✓ Branch 4 taken 582 times.
 1418 } else if (!av_strcasecmp(ch_gb.buffer, "G") ||
1720 582 !av_strcasecmp(ch_gb.buffer, "V")) {
1721 254 channel_index = 1;
1722 254 s->is_luma = 0;
1723
2/2
✓ Branch 1 taken 62 times.
✓ Branch 2 taken 520 times.
 582 } else if (!av_strcasecmp(ch_gb.buffer, "Y")) {
1724 62 channel_index = 1;
1725 62 s->is_luma = 1;
1726
3/4
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✓ Branch 3 taken 266 times.
✗ Branch 4 not taken.
 786 } else if (!av_strcasecmp(ch_gb.buffer, "B") ||
1727
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 532 !av_strcasecmp(ch_gb.buffer, "Z") ||
1728 266 !av_strcasecmp(ch_gb.buffer, "W")) {
1729 254 channel_index = 2;
1730 254 s->is_luma = 0;
1731
2/2
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✓ Branch 2 taken 152 times.
 266 } else if (!av_strcasecmp(ch_gb.buffer, "A")) {
1732 114 channel_index = 3;
1733 } else {
1734 152 av_log(s->avctx, AV_LOG_WARNING,
1735 "Unsupported channel %.256s.\n", ch_gb.buffer);
1736 }
1737 }
1738
1739 /* skip until you get a 0 */
1740
3/4
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✓ Branch 3 taken 3644 times.
✓ Branch 4 taken 1212 times.
 9712 while (bytestream2_get_bytes_left(&ch_gb) > 0 &&
1741 4856 bytestream2_get_byte(&ch_gb))
1742 3644 continue;
1743
1744
1/2
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✓ Branch 2 taken 1212 times.
 1212 if (bytestream2_get_bytes_left(&ch_gb) < 4) {
1745 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header.\n");
1746 ✗ ret = AVERROR_INVALIDDATA;
1747 ✗ goto fail;
1748 }
1749
1750 1212 current_pixel_type = bytestream2_get_le32(&ch_gb);
1751
1/2
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✓ Branch 1 taken 1212 times.
 1212 if (current_pixel_type >= EXR_UNKNOWN) {
1752 ✗ avpriv_report_missing_feature(s->avctx, "Pixel type %d",
1753 current_pixel_type);
1754 ✗ ret = AVERROR_PATCHWELCOME;
1755 ✗ goto fail;
1756 }
1757
1758 1212 bytestream2_skip(&ch_gb, 4);
1759 1212 xsub = bytestream2_get_le32(&ch_gb);
1760 1212 ysub = bytestream2_get_le32(&ch_gb);
1761
1762
2/4
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✓ Branch 3 taken 1212 times.
 1212 if (xsub != 1 || ysub != 1) {
1763 ✗ avpriv_report_missing_feature(s->avctx,
1764 "Subsampling %dx%d",
1765 xsub, ysub);
1766 ✗ ret = AVERROR_PATCHWELCOME;
1767 ✗ goto fail;
1768 }
1769
1770
3/4
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✓ Branch 1 taken 274 times.
✓ Branch 2 taken 938 times.
✗ Branch 3 not taken.
 1212 if (channel_index >= 0 && s->channel_offsets[channel_index] == -1) { /* channel has not been previously assigned */
1771
2/2
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✓ Branch 1 taken 316 times.
 938 if (s->pixel_type != EXR_UNKNOWN &&
1772
1/2
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✓ Branch 1 taken 622 times.
 622 s->pixel_type != current_pixel_type) {
1773 ✗ av_log(s->avctx, AV_LOG_ERROR,
1774 "RGB channels not of the same depth.\n");
1775 ✗ ret = AVERROR_INVALIDDATA;
1776 ✗ goto fail;
1777 }
1778 938 s->pixel_type = current_pixel_type;
1779 938 s->channel_offsets[channel_index] = s->current_channel_offset;
1780
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✓ Branch 1 taken 274 times.
 274 } else if (channel_index >= 0) {
1781 ✗ av_log(s->avctx, AV_LOG_WARNING,
1782 "Multiple channels with index %d.\n", channel_index);
1783 ✗ if (++dup_channels > 10) {
1784 ✗ ret = AVERROR_INVALIDDATA;
1785 ✗ goto fail;
1786 }
1787 }
1788
1789 2424 s->channels = av_realloc(s->channels,
1790 1212 ++s->nb_channels * sizeof(EXRChannel));
1791
1/2
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✓ Branch 1 taken 1212 times.
 1212 if (!s->channels) {
1792 ✗ ret = AVERROR(ENOMEM);
1793 ✗ goto fail;
1794 }
1795 1212 channel = &s->channels[s->nb_channels - 1];
1796 1212 channel->pixel_type = current_pixel_type;
1797 1212 channel->xsub = xsub;
1798 1212 channel->ysub = ysub;
1799
1800
2/2
✓ Branch 0 taken 404 times.
✓ Branch 1 taken 808 times.
 1212 if (current_pixel_type == EXR_HALF) {
1801 404 s->current_channel_offset += 2;
1802 } else {/* Float or UINT32 */
1803 808 s->current_channel_offset += 4;
1804 }
1805 }
1806
1807 /* Check if all channels are set with an offset or if the channels
1808 * are causing an overflow */
1809
2/2
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✓ Branch 1 taken 62 times.
 316 if (!s->is_luma) {/* if we expected to have at least 3 channels */
1810
1/2
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✓ Branch 1 taken 254 times.
 254 if (FFMIN3(s->channel_offsets[0],
1811 s->channel_offsets[1],
1812 s->channel_offsets[2]) < 0) {
1813 ✗ if (s->channel_offsets[0] < 0)
1814 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing red channel.\n");
1815 ✗ if (s->channel_offsets[1] < 0)
1816 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing green channel.\n");
1817 ✗ if (s->channel_offsets[2] < 0)
1818 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing blue channel.\n");
1819 ✗ ret = AVERROR_INVALIDDATA;
1820 ✗ goto fail;
1821 }
1822 }
1823
1824 // skip one last byte and update main gb
1825 316 gb->buffer = ch_gb.buffer + 1;
1826 316 continue;
1827
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3448 times.
 3764 } else if ((var_size = check_header_variable(s, "dataWindow", "box2i",
1828 316 31)) >= 0) {
1829 int xmin, ymin, xmax, ymax;
1830
1/2
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✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1831 ✗ ret = AVERROR_INVALIDDATA;
1832 ✗ goto fail;
1833 }
1834
1835 316 xmin = bytestream2_get_le32(gb);
1836 316 ymin = bytestream2_get_le32(gb);
1837 316 xmax = bytestream2_get_le32(gb);
1838 316 ymax = bytestream2_get_le32(gb);
1839
1840
3/6
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✗ Branch 3 not taken.
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 316 if (xmin > xmax || ymin > ymax ||
1841
1/2
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✗ Branch 1 not taken.
 316 ymax == INT_MAX || xmax == INT_MAX ||
1842
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 316 (unsigned)xmax - xmin >= INT_MAX ||
1843
1/2
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 316 (unsigned)ymax - ymin >= INT_MAX) {
1844 ✗ ret = AVERROR_INVALIDDATA;
1845 ✗ goto fail;
1846 }
1847 316 s->xmin = xmin;
1848 316 s->xmax = xmax;
1849 316 s->ymin = ymin;
1850 316 s->ymax = ymax;
1851 316 s->xdelta = (s->xmax - s->xmin) + 1;
1852 316 s->ydelta = (s->ymax - s->ymin) + 1;
1853
1854 316 continue;
1855
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3132 times.
 3448 } else if ((var_size = check_header_variable(s, "displayWindow",
1856 316 "box2i", 34)) >= 0) {
1857 int32_t sx, sy, dx, dy;
1858
1859
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1860 ✗ ret = AVERROR_INVALIDDATA;
1861 ✗ goto fail;
1862 }
1863
1864 316 sx = bytestream2_get_le32(gb);
1865 316 sy = bytestream2_get_le32(gb);
1866 316 dx = bytestream2_get_le32(gb);
1867 316 dy = bytestream2_get_le32(gb);
1868
1869 316 s->w = (unsigned)dx - sx + 1;
1870 316 s->h = (unsigned)dy - sy + 1;
1871
1872 316 continue;
1873
2/2
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✓ Branch 2 taken 2816 times.
 3132 } else if ((var_size = check_header_variable(s, "lineOrder",
1874 316 "lineOrder", 25)) >= 0) {
1875 int line_order;
1876
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1877 ✗ ret = AVERROR_INVALIDDATA;
1878 ✗ goto fail;
1879 }
1880
1881 316 line_order = bytestream2_get_byte(gb);
1882 316 av_log(s->avctx, AV_LOG_DEBUG, "line order: %d.\n", line_order);
1883
1/2
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✓ Branch 1 taken 316 times.
 316 if (line_order > 2) {
1884 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown line order.\n");
1885 ✗ ret = AVERROR_INVALIDDATA;
1886 ✗ goto fail;
1887 }
1888
1889 316 continue;
1890
2/2
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✓ Branch 2 taken 2668 times.
 2816 } else if ((var_size = check_header_variable(s, "pixelAspectRatio",
1891 "float", 31)) >= 0) {
1892
1/2
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✓ Branch 1 taken 148 times.
 148 if (!var_size) {
1893 ✗ ret = AVERROR_INVALIDDATA;
1894 ✗ goto fail;
1895 }
1896
1897 148 s->sar = bytestream2_get_le32(gb);
1898
1899 148 continue;
1900
2/2
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✓ Branch 2 taken 2352 times.
 2668 } else if ((var_size = check_header_variable(s, "compression",
1901 "compression", 29)) >= 0) {
1902
1/2
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✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1903 ✗ ret = AVERROR_INVALIDDATA;
1904 ✗ goto fail;
1905 }
1906
1907
1/2
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✗ Branch 1 not taken.
 316 if (s->compression == EXR_UNKN)
1908 316 s->compression = bytestream2_get_byte(gb);
1909 else {
1910 ✗ bytestream2_skip(gb, 1);
1911 ✗ av_log(s->avctx, AV_LOG_WARNING,
1912 "Found more than one compression attribute.\n");
1913 }
1914
1915 316 continue;
1916
2/2
✓ Branch 1 taken 44 times.
✓ Branch 2 taken 2308 times.
 2352 } else if ((var_size = check_header_variable(s, "tiles",
1917 44 "tiledesc", 22)) >= 0) {
1918 uint8_t tileLevel;
1919
1920
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (!s->is_tile)
1921 ✗ av_log(s->avctx, AV_LOG_WARNING,
1922 "Found tile attribute and scanline flags. Exr will be interpreted as scanline.\n");
1923
1924 44 s->tile_attr.xSize = bytestream2_get_le32(gb);
1925 44 s->tile_attr.ySize = bytestream2_get_le32(gb);
1926
1927 44 tileLevel = bytestream2_get_byte(gb);
1928 44 s->tile_attr.level_mode = tileLevel & 0x0f;
1929 44 s->tile_attr.level_round = (tileLevel >> 4) & 0x0f;
1930
1931
1/2
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✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_mode >= EXR_TILE_LEVEL_UNKNOWN) {
1932 ✗ avpriv_report_missing_feature(s->avctx, "Tile level mode %d",
1933 ✗ s->tile_attr.level_mode);
1934 ✗ ret = AVERROR_PATCHWELCOME;
1935 ✗ goto fail;
1936 }
1937
1938
1/2
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✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_round >= EXR_TILE_ROUND_UNKNOWN) {
1939 ✗ avpriv_report_missing_feature(s->avctx, "Tile level round %d",
1940 ✗ s->tile_attr.level_round);
1941 ✗ ret = AVERROR_PATCHWELCOME;
1942 ✗ goto fail;
1943 }
1944
1945 44 continue;
1946
2/2
✓ Branch 1 taken 184 times.
✓ Branch 2 taken 2124 times.
 2308 } else if ((var_size = check_header_variable(s, "writer",
1947 184 "string", 1)) >= 0) {
1948 184 uint8_t key[256] = { 0 };
1949
1950 184 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
1951 184 av_dict_set(&metadata, "writer", key, 0);
1952
1953 184 continue;
1954
2/2
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✓ Branch 2 taken 1940 times.
 2124 } else if ((var_size = check_header_variable(s, "framesPerSecond",
1955 "rational", 33)) >= 0) {
1956
1/2
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✓ Branch 1 taken 184 times.
 184 if (!var_size) {
1957 ✗ ret = AVERROR_INVALIDDATA;
1958 ✗ goto fail;
1959 }
1960
1961 184 s->avctx->framerate.num = bytestream2_get_le32(gb);
1962 184 s->avctx->framerate.den = bytestream2_get_le32(gb);
1963
1964 184 continue;
1965
2/2
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 1932 times.
 1940 } else if ((var_size = check_header_variable(s, "chunkCount",
1966 "int", 23)) >= 0) {
1967
1968 8 s->chunk_count = bytestream2_get_le32(gb);
1969
1970 8 continue;
1971
2/2
✓ Branch 1 taken 18 times.
✓ Branch 2 taken 1914 times.
 1932 } else if ((var_size = check_header_variable(s, "type",
1972 18 "string", 16)) >= 0) {
1973 18 uint8_t key[256] = { 0 };
1974
1975 18 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
1976
2/2
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✓ Branch 1 taken 10 times.
 18 if (strncmp("scanlineimage", key, var_size) &&
1977
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
 8 strncmp("tiledimage", key, var_size)) {
1978 ✗ ret = AVERROR_PATCHWELCOME;
1979 ✗ goto fail;
1980 }
1981
1982 18 continue;
1983
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 } else if ((var_size = check_header_variable(s, "preview",
1984 ✗ "preview", 16)) >= 0) {
1985 ✗ uint32_t pw = bytestream2_get_le32(gb);
1986 ✗ uint32_t ph = bytestream2_get_le32(gb);
1987 ✗ uint64_t psize = pw * (uint64_t)ph;
1988 ✗ if (psize > INT64_MAX / 4) {
1989 ✗ ret = AVERROR_INVALIDDATA;
1990 ✗ goto fail;
1991 }
1992 ✗ psize *= 4;
1993
1994 ✗ if ((int64_t)psize >= bytestream2_get_bytes_left(gb)) {
1995 ✗ ret = AVERROR_INVALIDDATA;
1996 ✗ goto fail;
1997 }
1998
1999 ✗ bytestream2_skip(gb, psize);
2000
2001 ✗ continue;
2002 }
2003
2004 // Check if there are enough bytes for a header
2005
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 if (bytestream2_get_bytes_left(gb) <= 9) {
2006 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header\n");
2007 ✗ ret = AVERROR_INVALIDDATA;
2008 ✗ goto fail;
2009 }
2010
2011 // Process unknown variables
2012 {
2013 1914 uint8_t name[256] = { 0 };
2014 1914 uint8_t type[256] = { 0 };
2015 1914 uint8_t value[8192] = { 0 };
2016 1914 int i = 0, size;
2017
2018
2/2
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✓ Branch 2 taken 1914 times.
 57680 while (bytestream2_get_bytes_left(gb) > 0 &&
2019
2/4
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✗ Branch 1 not taken.
✓ Branch 3 taken 26926 times.
✗ Branch 4 not taken.
 55766 bytestream2_peek_byte(gb) && i < 255) {
2020 26926 name[i++] = bytestream2_get_byte(gb);
2021 }
2022
2023 1914 bytestream2_skip(gb, 1);
2024 1914 i = 0;
2025
2/2
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✓ Branch 2 taken 1914 times.
 21376 while (bytestream2_get_bytes_left(gb) > 0 &&
2026
2/4
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✗ Branch 1 not taken.
✓ Branch 3 taken 8774 times.
✗ Branch 4 not taken.
 19462 bytestream2_peek_byte(gb) && i < 255) {
2027 8774 type[i++] = bytestream2_get_byte(gb);
2028 }
2029 1914 bytestream2_skip(gb, 1);
2030 1914 size = bytestream2_get_le32(gb);
2031
2032 1914 bytestream2_get_buffer(gb, value, FFMIN(sizeof(value) - 1, size));
2033
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1914 times.
 1914 if (size > sizeof(value) - 1)
2034 ✗ bytestream2_skip(gb, size - (sizeof(value) - 1));
2035
2/2
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✓ Branch 1 taken 1754 times.
 1914 if (!strcmp(type, "string"))
2036 160 av_dict_set(&metadata, name, value, 0);
2037 }
2038 }
2039
2040
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (s->compression == EXR_UNKN) {
2041 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing compression attribute.\n");
2042 ✗ ret = AVERROR_INVALIDDATA;
2043 ✗ goto fail;
2044 }
2045
2046
2/2
✓ Branch 0 taken 44 times.
✓ Branch 1 taken 272 times.
 316 if (s->is_tile) {
2047
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 44 times.
 44 if (s->tile_attr.xSize < 1 || s->tile_attr.ySize < 1) {
2048 ✗ av_log(s->avctx, AV_LOG_ERROR, "Invalid tile attribute.\n");
2049 ✗ ret = AVERROR_INVALIDDATA;
2050 ✗ goto fail;
2051 }
2052 }
2053
2054
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) <= 0) {
2055 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete frame.\n");
2056 ✗ ret = AVERROR_INVALIDDATA;
2057 ✗ goto fail;
2058 }
2059
2060 316 frame->metadata = metadata;
2061
2062 // aaand we are done
2063 316 bytestream2_skip(gb, 1);
2064 316 return 0;
2065 ✗ fail:
2066 ✗ av_dict_free(&metadata);
2067 ✗ return ret;
2068 }
2069
2070 316 static int decode_frame(AVCodecContext *avctx, AVFrame *picture,
2071 int *got_frame, AVPacket *avpkt)
2072 {
2073 316 EXRContext *s = avctx->priv_data;
2074 316 GetByteContext *gb = &s->gb;
2075 uint8_t *ptr;
2076
2077 int i, y, ret, ymax;
2078 int planes;
2079 int out_line_size;
2080 int nb_blocks; /* nb scanline or nb tile */
2081 uint64_t start_offset_table;
2082 uint64_t start_next_scanline;
2083
2084 316 bytestream2_init(gb, avpkt->data, avpkt->size);
2085
2086
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = decode_header(s, picture)) < 0)
2087 ✗ return ret;
2088
2089
1/2
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
 316 if (s->compression == EXR_DWAA ||
2090
1/2
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✓ Branch 1 taken 316 times.
 316 s->compression == EXR_DWAB) {
2091 ✗ for (int i = 0; i<s->nb_channels; i++) {
2092 ✗ EXRChannel *channel = &s->channels[i];
2093 ✗ if (channel->pixel_type != s->pixel_type) {
2094 ✗ avpriv_request_sample(s->avctx, "mixed pixel type DWA");
2095 ✗ return AVERROR_PATCHWELCOME;
2096 }
2097 }
2098 }
2099
2100
3/4
✓ Branch 0 taken 88 times.
✓ Branch 1 taken 218 times.
✓ Branch 2 taken 10 times.
✗ Branch 3 not taken.
 316 switch (s->pixel_type) {
2101 88 case EXR_HALF:
2102
2/2
✓ Branch 0 taken 26 times.
✓ Branch 1 taken 62 times.
 88 if (s->channel_offsets[3] >= 0) {
2103
2/2
✓ Branch 0 taken 24 times.
✓ Branch 1 taken 2 times.
 26 if (!s->is_luma) {
2104 24 avctx->pix_fmt = AV_PIX_FMT_GBRAPF16;
2105 } else {
2106 2 avctx->pix_fmt = AV_PIX_FMT_YAF16;
2107 }
2108 } else {
2109
2/2
✓ Branch 0 taken 58 times.
✓ Branch 1 taken 4 times.
 62 if (!s->is_luma) {
2110 58 avctx->pix_fmt = AV_PIX_FMT_GBRPF16;
2111 } else {
2112 4 avctx->pix_fmt = AV_PIX_FMT_GRAYF16;
2113 }
2114 }
2115 88 break;
2116 218 case EXR_FLOAT:
2117
2/2
✓ Branch 0 taken 88 times.
✓ Branch 1 taken 130 times.
 218 if (s->channel_offsets[3] >= 0) {
2118
1/2
✓ Branch 0 taken 88 times.
✗ Branch 1 not taken.
 88 if (!s->is_luma) {
2119 88 avctx->pix_fmt = AV_PIX_FMT_GBRAPF32;
2120 } else {
2121 ✗ avctx->pix_fmt = AV_PIX_FMT_YAF32;
2122 }
2123 } else {
2124
2/2
✓ Branch 0 taken 74 times.
✓ Branch 1 taken 56 times.
 130 if (!s->is_luma) {
2125 74 avctx->pix_fmt = AV_PIX_FMT_GBRPF32;
2126 } else {
2127 56 avctx->pix_fmt = AV_PIX_FMT_GRAYF32;
2128 }
2129 }
2130 218 break;
2131 10 case EXR_UINT:
2132
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
 10 if (s->channel_offsets[3] >= 0) {
2133 ✗ if (!s->is_luma) {
2134 ✗ avctx->pix_fmt = AV_PIX_FMT_RGBA64;
2135 } else {
2136 ✗ avctx->pix_fmt = AV_PIX_FMT_YA16;
2137 }
2138 } else {
2139
1/2
✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
 10 if (!s->is_luma) {
2140 10 avctx->pix_fmt = AV_PIX_FMT_RGB48;
2141 } else {
2142 ✗ avctx->pix_fmt = AV_PIX_FMT_GRAY16;
2143 }
2144 }
2145 10 break;
2146 ✗ default:
2147 ✗ av_log(avctx, AV_LOG_ERROR, "Missing channel list.\n");
2148 ✗ return AVERROR_INVALIDDATA;
2149 }
2150
2151 #if FF_API_EXR_GAMMA
2152
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (s->apply_trc_type != AVCOL_TRC_UNSPECIFIED)
2153 ✗ avctx->color_trc = s->apply_trc_type;
2154
2/4
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
✗ Branch 3 not taken.
 316 else if (s->gamma > 0.9999f && s->gamma < 1.0001f)
2155 #endif
2156 316 avctx->color_trc = AVCOL_TRC_LINEAR;
2157
2158
3/5
✓ Branch 0 taken 174 times.
✓ Branch 1 taken 92 times.
✓ Branch 2 taken 50 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
 316 switch (s->compression) {
2159 174 case EXR_RAW:
2160 case EXR_RLE:
2161 case EXR_ZIP1:
2162 174 s->scan_lines_per_block = 1;
2163 174 break;
2164 92 case EXR_PXR24:
2165 case EXR_ZIP16:
2166 92 s->scan_lines_per_block = 16;
2167 92 break;
2168 50 case EXR_PIZ:
2169 case EXR_B44:
2170 case EXR_B44A:
2171 case EXR_DWAA:
2172 50 s->scan_lines_per_block = 32;
2173 50 break;
2174 ✗ case EXR_DWAB:
2175 ✗ s->scan_lines_per_block = 256;
2176 ✗ break;
2177 ✗ default:
2178 ✗ avpriv_report_missing_feature(avctx, "Compression %d", s->compression);
2179 ✗ return AVERROR_PATCHWELCOME;
2180 }
2181
2182 /* Verify the xmin, xmax, ymin and ymax before setting the actual image size.
2183 * It's possible for the data window can larger or outside the display window */
2184
2/4
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✗ Branch 3 not taken.
 316 if (s->xmin > s->xmax || s->ymin > s->ymax ||
2185
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 316 times.
 316 s->ydelta == 0xFFFFFFFF || s->xdelta == 0xFFFFFFFF) {
2186 ✗ av_log(avctx, AV_LOG_ERROR, "Wrong or missing size information.\n");
2187 ✗ return AVERROR_INVALIDDATA;
2188 }
2189
2190
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = ff_set_dimensions(avctx, s->w, s->h)) < 0)
2191 ✗ return ret;
2192
2193 316 ff_set_sar(s->avctx, av_d2q(av_int2float(s->sar), 255));
2194
2195
2/2
✓ Branch 0 taken 86 times.
✓ Branch 1 taken 230 times.
 316 if (avctx->skip_frame >= AVDISCARD_ALL)
2196 86 return avpkt->size;
2197
2198 230 s->desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2199
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 230 times.
 230 if (!s->desc)
2200 ✗ return AVERROR_INVALIDDATA;
2201
2202 230 planes = av_pix_fmt_count_planes(avctx->pix_fmt);
2203 230 out_line_size = avctx->width * s->desc->comp[0].step;
2204
2205
2/2
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 208 times.
 230 if (s->is_tile) {
2206 22 nb_blocks = ((s->xdelta + s->tile_attr.xSize - 1) / s->tile_attr.xSize) *
2207 22 ((s->ydelta + s->tile_attr.ySize - 1) / s->tile_attr.ySize);
2208 } else { /* scanline */
2209 208 nb_blocks = (s->ydelta + s->scan_lines_per_block - 1) /
2210 208 s->scan_lines_per_block;
2211 }
2212
2213
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 230 times.
 230 if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
2214 ✗ return ret;
2215
2216
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 230 times.
 230 if (bytestream2_get_bytes_left(gb)/8 < nb_blocks)
2217 ✗ return AVERROR_INVALIDDATA;
2218
2219 // check offset table and recreate it if need
2220
4/4
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✓ Branch 1 taken 22 times.
✓ Branch 3 taken 1 times.
✓ Branch 4 taken 207 times.
 230 if (!s->is_tile && bytestream2_peek_le64(gb) == 0) {
2221 PutByteContext offset_table_writer;
2222
2223 1 av_log(s->avctx, AV_LOG_DEBUG, "recreating invalid scanline offset table\n");
2224
2225 1 s->offset_table = av_realloc_f(s->offset_table, nb_blocks, 8);
2226
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!s->offset_table)
2227 ✗ return AVERROR(ENOMEM);
2228
2229 1 start_offset_table = bytestream2_tell(gb);
2230 1 start_next_scanline = start_offset_table + nb_blocks * 8;
2231 1 bytestream2_init_writer(&offset_table_writer, s->offset_table, nb_blocks * 8);
2232
2233
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 1 times.
 9 for (y = 0; y < nb_blocks; y++) {
2234 /* write offset of prev scanline in offset table */
2235 8 bytestream2_put_le64(&offset_table_writer, start_next_scanline);
2236
2237 /* get len of next scanline */
2238 8 bytestream2_seek(gb, start_next_scanline + 4, SEEK_SET);/* skip line number */
2239 8 start_next_scanline += (bytestream2_get_le32(gb) + 8);
2240 }
2241 1 bytestream2_init(gb, s->offset_table, nb_blocks * 8);
2242 }
2243
2244 // save pointer we are going to use in decode_block
2245 230 s->buf = avpkt->data;
2246 230 s->buf_size = avpkt->size;
2247
2248 // Zero out the start if ymin is not 0
2249
2/2
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✓ Branch 1 taken 230 times.
 880 for (i = 0; i < planes; i++) {
2250 650 ptr = picture->data[i];
2251
2/2
✓ Branch 0 taken 240 times.
✓ Branch 1 taken 650 times.
 890 for (y = 0; y < FFMIN(s->ymin, s->h); y++) {
2252 240 memset(ptr, 0, out_line_size);
2253 240 ptr += picture->linesize[i];
2254 }
2255 }
2256
2257 230 s->picture = picture;
2258
2259 230 avctx->execute2(avctx, decode_block, s->thread_data, NULL, nb_blocks);
2260
2261 230 ymax = FFMAX(0, s->ymax + 1);
2262 // Zero out the end if ymax+1 is not h
2263
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 226 times.
 230 if (ymax < avctx->height)
2264
2/2
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✓ Branch 1 taken 4 times.
 16 for (i = 0; i < planes; i++) {
2265 12 ptr = picture->data[i] + (ymax * picture->linesize[i]);
2266
2/2
✓ Branch 0 taken 2772 times.
✓ Branch 1 taken 12 times.
 2784 for (y = ymax; y < avctx->height; y++) {
2267 2772 memset(ptr, 0, out_line_size);
2268 2772 ptr += picture->linesize[i];
2269 }
2270 }
2271
2272 230 picture->pict_type = AV_PICTURE_TYPE_I;
2273 230 *got_frame = 1;
2274
2275 230 return avpkt->size;
2276 }
2277
2278 172 static av_cold int decode_init(AVCodecContext *avctx)
2279 {
2280 172 EXRContext *s = avctx->priv_data;
2281 #if FF_API_EXR_GAMMA
2282 uint32_t i;
2283 union av_intfloat32 t;
2284 172 float one_gamma = 1.0f / s->gamma;
2285 172 av_csp_trc_function trc_func = NULL;
2286 172 ff_init_float2half_tables(&s->f2h_tables);
2287 #endif
2288
2289 172 ff_init_half2float_tables(&s->h2f_tables);
2290
2291 172 s->avctx = avctx;
2292
2293 172 ff_exrdsp_init(&s->dsp);
2294
2295 #if HAVE_BIGENDIAN
2296 ff_bswapdsp_init(&s->bbdsp);
2297 #endif
2298
2299 #if FF_API_EXR_GAMMA
2300 172 trc_func = av_csp_trc_func_from_id(s->apply_trc_type);
2301
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 172 if (trc_func) {
2302 ✗ for (i = 0; i < 65536; ++i) {
2303 ✗ t.i = half2float(i, &s->h2f_tables);
2304 ✗ t.f = trc_func(t.f);
2305 ✗ s->gamma_table[i] = float2half(av_float2int(t.f), &s->f2h_tables);
2306 }
2307
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 172 } else if (one_gamma != 1.0f) {
2308 ✗ for (i = 0; i < 65536; ++i) {
2309 ✗ t.i = half2float(i, &s->h2f_tables);
2310 /* If negative value we reuse half value */
2311 ✗ if (t.f <= 0.0f) {
2312 ✗ s->gamma_table[i] = i;
2313 } else {
2314 ✗ t.f = powf(t.f, one_gamma);
2315 ✗ s->gamma_table[i] = float2half(t.i, &s->f2h_tables);
2316 }
2317 }
2318 }
2319 #endif
2320
2321 // allocate thread data, used for non EXR_RAW compression types
2322 172 s->thread_data = av_calloc(avctx->thread_count, sizeof(*s->thread_data));
2323
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 172 if (!s->thread_data)
2324 ✗ return AVERROR(ENOMEM);
2325
2326 172 return 0;
2327 }
2328
2329 172 static av_cold int decode_end(AVCodecContext *avctx)
2330 {
2331 172 EXRContext *s = avctx->priv_data;
2332 int i;
2333
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 344 for (i = 0; i < avctx->thread_count; i++) {
2334 172 EXRThreadData *td = &s->thread_data[i];
2335 172 av_freep(&td->uncompressed_data);
2336 172 av_freep(&td->tmp);
2337 172 av_freep(&td->bitmap);
2338 172 av_freep(&td->lut);
2339 172 av_freep(&td->he);
2340 172 av_freep(&td->freq);
2341 172 av_freep(&td->ac_data);
2342 172 av_freep(&td->dc_data);
2343 172 av_freep(&td->rle_data);
2344 172 av_freep(&td->rle_raw_data);
2345 172 ff_vlc_free(&td->vlc);
2346 }
2347
2348 172 av_freep(&s->thread_data);
2349 172 av_freep(&s->channels);
2350 172 av_freep(&s->offset_table);
2351
2352 172 return 0;
2353 }
2354
2355 #define OFFSET(x) offsetof(EXRContext, x)
2356 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
2357 static const AVOption options[] = {
2358 { "layer", "Set the decoding layer", OFFSET(layer),
2359 AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
2360 { "part", "Set the decoding part", OFFSET(selected_part),
2361 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
2362 #if FF_API_EXR_GAMMA
2363 { "gamma", "Set the float gamma value when decoding (deprecated, use a scaler)", OFFSET(gamma),
2364 AV_OPT_TYPE_FLOAT, { .dbl = 1.0f }, 0.001, FLT_MAX, VD | AV_OPT_FLAG_DEPRECATED },
2365
2366 // XXX: Note the abuse of the enum using AVCOL_TRC_UNSPECIFIED to subsume the existing gamma option
2367 { "apply_trc", "color transfer characteristics to apply to EXR linear input (deprecated, use a scaler)", OFFSET(apply_trc_type),
2368 AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, VD | AV_OPT_FLAG_DEPRECATED, .unit = "apply_trc_type"},
2369 { "bt709", "BT.709", 0,
2370 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2371 { "gamma", "gamma", 0,
2372 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2373 { "gamma22", "BT.470 M", 0,
2374 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2375 { "gamma28", "BT.470 BG", 0,
2376 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2377 { "smpte170m", "SMPTE 170 M", 0,
2378 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2379 { "smpte240m", "SMPTE 240 M", 0,
2380 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2381 { "linear", "Linear", 0,
2382 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2383 { "log", "Log", 0,
2384 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2385 { "log_sqrt", "Log square root", 0,
2386 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2387 { "iec61966_2_4", "IEC 61966-2-4", 0,
2388 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2389 { "bt1361", "BT.1361", 0,
2390 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2391 { "iec61966_2_1", "IEC 61966-2-1", 0,
2392 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2393 { "bt2020_10bit", "BT.2020 - 10 bit", 0,
2394 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2395 { "bt2020_12bit", "BT.2020 - 12 bit", 0,
2396 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2397 { "smpte2084", "SMPTE ST 2084", 0,
2398 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTEST2084 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2399 { "smpte428_1", "SMPTE ST 428-1", 0,
2400 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTEST428_1 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2401 #endif
2402
2403 { NULL },
2404 };
2405
2406 static const AVClass exr_class = {
2407 .class_name = "EXR",
2408 .item_name = av_default_item_name,
2409 .option = options,
2410 .version = LIBAVUTIL_VERSION_INT,
2411 };
2412
2413 const FFCodec ff_exr_decoder = {
2414 .p.name = "exr",
2415 CODEC_LONG_NAME("OpenEXR image"),
2416 .p.type = AVMEDIA_TYPE_VIDEO,
2417 .p.id = AV_CODEC_ID_EXR,
2418 .priv_data_size = sizeof(EXRContext),
2419 .init = decode_init,
2420 .close = decode_end,
2421 FF_CODEC_DECODE_CB(decode_frame),
2422 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
2423 AV_CODEC_CAP_SLICE_THREADS,
2424 .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2425 .p.priv_class = &exr_class,
2426 };
2427