FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/exr.c
Date: 2026-04-24 19:58:39
Exec Total Coverage
Lines: 871 1356 64.2%
Functions: 23 31 74.2%
Branches: 477 841 56.7%
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 #define M(chr) (1<<chr - 'A')
179 int has_channel; ///< combination of flags representing the channel codes A-Z
180
181 GetByteContext gb;
182 const uint8_t *buf;
183 int buf_size;
184
185 EXRChannel *channels;
186 int nb_channels;
187 int current_channel_offset;
188 uint32_t chunk_count;
189
190 EXRThreadData *thread_data;
191
192 const char *layer;
193 int selected_part;
194
195
196 uint8_t *offset_table;
197
198 #if FF_API_EXR_GAMMA
199 enum AVColorTransferCharacteristic apply_trc_type;
200 float gamma;
201 uint16_t gamma_table[65536];
202 #endif
203
204 Float2HalfTables f2h_tables;
205 Half2FloatTables h2f_tables;
206 } EXRContext;
207
208 12853 static int zip_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
209 int uncompressed_size, EXRThreadData *td)
210 {
211 12853 unsigned long dest_len = uncompressed_size;
212
213
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 12853 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK ||
214
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 12853 dest_len != uncompressed_size)
215 ✗ return AVERROR_INVALIDDATA;
216
217 av_assert1(uncompressed_size % 2 == 0);
218
219 12853 s->dsp.predictor(td->tmp, uncompressed_size);
220 12853 s->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
221
222 12853 return 0;
223 }
224
225 4848 static int rle(uint8_t *dst, const uint8_t *src,
226 int compressed_size, int uncompressed_size)
227 {
228 4848 uint8_t *d = dst;
229 4848 const int8_t *s = src;
230 4848 int ssize = compressed_size;
231 4848 int dsize = uncompressed_size;
232 4848 uint8_t *dend = d + dsize;
233 int count;
234
235
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 676771 while (ssize > 0) {
236 671923 count = *s++;
237
238
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 671923 if (count < 0) {
239 501696 count = -count;
240
241
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242
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 501696 (ssize -= count + 1) < 0)
243 ✗ return AVERROR_INVALIDDATA;
244
245
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 21708325 while (count--)
246 21206629 *d++ = *s++;
247 } else {
248 170227 count++;
249
250
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251
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 170227 (ssize -= 2) < 0)
252 ✗ return AVERROR_INVALIDDATA;
253
254
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 4913430 while (count--)
255 4743203 *d++ = *s;
256
257 170227 s++;
258 }
259 }
260
261
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 4848 if (dend != d)
262 ✗ return AVERROR_INVALIDDATA;
263
264 4848 return 0;
265 }
266
267 4848 static int rle_uncompress(const EXRContext *ctx, const uint8_t *src, int compressed_size,
268 int uncompressed_size, EXRThreadData *td)
269 {
270 4848 rle(td->tmp, src, compressed_size, uncompressed_size);
271
272 av_assert1(uncompressed_size % 2 == 0);
273
274 4848 ctx->dsp.predictor(td->tmp, uncompressed_size);
275 4848 ctx->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
276
277 4848 return 0;
278 }
279
280 #define USHORT_RANGE (1 << 16)
281 #define BITMAP_SIZE (1 << 13)
282
283 30 static uint16_t reverse_lut(const uint8_t *bitmap, uint16_t *lut)
284 {
285 30 int i, k = 0;
286
287
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288
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 1966080 if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7))))
289 15385 lut[k++] = i;
290
291 30 i = k - 1;
292
293 30 memset(lut + k, 0, (USHORT_RANGE - k) * 2);
294
295 30 return i;
296 }
297
298 30 static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
299 {
300 int i;
301
302
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 820752 for (i = 0; i < dsize; ++i)
303 820722 dst[i] = lut[dst[i]];
304 30 }
305
306 #define HUF_ENCBITS 16 // literal (value) bit length
307 #define HUF_ENCSIZE ((1 << HUF_ENCBITS) + 1) // encoding table size
308
309 30 static void huf_canonical_code_table(uint64_t *freq)
310 {
311 30 uint64_t c, n[59] = { 0 };
312 int i;
313
314
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 1966140 for (i = 0; i < HUF_ENCSIZE; i++)
315 1966110 n[freq[i]] += 1;
316
317 30 c = 0;
318
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 1770 for (i = 58; i > 0; --i) {
319 1740 uint64_t nc = ((c + n[i]) >> 1);
320 1740 n[i] = c;
321 1740 c = nc;
322 }
323
324
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 1966140 for (i = 0; i < HUF_ENCSIZE; ++i) {
325 1966110 int l = freq[i];
326
327
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 1966110 if (l > 0)
328 6417 freq[i] = l | (n[l]++ << 6);
329 }
330 30 }
331
332 #define SHORT_ZEROCODE_RUN 59
333 #define LONG_ZEROCODE_RUN 63
334 #define SHORTEST_LONG_RUN (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN)
335 #define LONGEST_LONG_RUN (255 + SHORTEST_LONG_RUN)
336
337 30 static int huf_unpack_enc_table(GetByteContext *gb,
338 int32_t im, int32_t iM, uint64_t *freq)
339 {
340 GetBitContext gbit;
341 30 int ret = init_get_bits8(&gbit, gb->buffer, bytestream2_get_bytes_left(gb));
342
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 30 if (ret < 0)
343 ✗ return ret;
344
345
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 16636 for (; im <= iM; im++) {
346 int l;
347
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 16606 if (get_bits_left(&gbit) < 6)
348 ✗ return AVERROR_INVALIDDATA;
349 16606 l = freq[im] = get_bits(&gbit, 6);
350
351
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 16606 if (l == LONG_ZEROCODE_RUN) {
352 8339 int zerun = get_bits(&gbit, 8) + SHORTEST_LONG_RUN;
353
354
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 8339 if (im + zerun > iM + 1)
355 ✗ return AVERROR_INVALIDDATA;
356
357
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 1963965 while (zerun--)
358 1955626 freq[im++] = 0;
359
360 8339 im--;
361
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 8267 } else if (l >= SHORT_ZEROCODE_RUN) {
362 1053 int zerun = l - SHORT_ZEROCODE_RUN + 2;
363
364
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 1053 if (im + zerun > iM + 1)
365 ✗ return AVERROR_INVALIDDATA;
366
367
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 4323 while (zerun--)
368 3270 freq[im++] = 0;
369
370 1053 im--;
371 }
372 }
373
374 30 bytestream2_skip(gb, (get_bits_count(&gbit) + 7) / 8);
375 30 huf_canonical_code_table(freq);
376
377 30 return 0;
378 }
379
380 30 static int huf_build_dec_table(const EXRContext *s,
381 EXRThreadData *td, int im, int iM)
382 {
383 30 int j = 0;
384
385 30 td->run_sym = -1;
386
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 1966110 for (int i = im; i < iM; i++) {
387 1966080 td->he[j].sym = i;
388 1966080 td->he[j].len = td->freq[i] & 63;
389 1966080 td->he[j].code = td->freq[i] >> 6;
390
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 1966080 if (td->he[j].len > 32) {
391 ✗ avpriv_request_sample(s->avctx, "Too big code length");
392 ✗ return AVERROR_PATCHWELCOME;
393 }
394
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 1966080 if (td->he[j].len > 0)
395 6387 j++;
396 else
397 1959693 td->run_sym = i;
398 }
399
400
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 30 if (im > 0)
401 ✗ td->run_sym = 0;
402
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 30 else if (iM < 65535)
403 ✗ td->run_sym = 65535;
404
405
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 30 if (td->run_sym == -1) {
406 ✗ avpriv_request_sample(s->avctx, "No place for run symbol");
407 ✗ return AVERROR_PATCHWELCOME;
408 }
409
410 30 td->he[j].sym = td->run_sym;
411 30 td->he[j].len = td->freq[iM] & 63;
412
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 30 if (td->he[j].len > 32) {
413 ✗ avpriv_request_sample(s->avctx, "Too big code length");
414 ✗ return AVERROR_PATCHWELCOME;
415 }
416 30 td->he[j].code = td->freq[iM] >> 6;
417 30 j++;
418
419 30 ff_vlc_free(&td->vlc);
420 30 return ff_vlc_init_sparse(&td->vlc, 12, j,
421 30 &td->he[0].len, sizeof(td->he[0]), sizeof(td->he[0].len),
422 30 &td->he[0].code, sizeof(td->he[0]), sizeof(td->he[0].code),
423 30 &td->he[0].sym, sizeof(td->he[0]), sizeof(td->he[0].sym), 0);
424 }
425
426 30 static int huf_decode(VLC *vlc, GetByteContext *gb, int nbits, int run_sym,
427 int no, uint16_t *out)
428 {
429 GetBitContext gbit;
430 30 int oe = 0;
431
432 30 init_get_bits(&gbit, gb->buffer, nbits);
433
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 213511 while (get_bits_left(&gbit) > 0 && oe < no) {
434 213481 uint16_t x = get_vlc2(&gbit, vlc->table, 12, 3);
435
436
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 213481 if (x == run_sym) {
437 3387 int run = get_bits(&gbit, 8);
438 uint16_t fill;
439
440
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 3387 if (oe == 0 || oe + run > no)
441 ✗ return AVERROR_INVALIDDATA;
442
443 3387 fill = out[oe - 1];
444
445
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 614015 while (run-- > 0)
446 610628 out[oe++] = fill;
447 } else {
448 210094 out[oe++] = x;
449 }
450 }
451
452 30 return 0;
453 }
454
455 30 static int huf_uncompress(const EXRContext *s,
456 EXRThreadData *td,
457 GetByteContext *gb,
458 uint16_t *dst, int dst_size)
459 {
460 int32_t im, iM;
461 uint32_t nBits;
462 int ret;
463
464 30 im = bytestream2_get_le32(gb);
465 30 iM = bytestream2_get_le32(gb);
466 30 bytestream2_skip(gb, 4);
467 30 nBits = bytestream2_get_le32(gb);
468
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 30 if (im < 0 || im >= HUF_ENCSIZE ||
469
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 30 iM < 0 || iM >= HUF_ENCSIZE)
470 ✗ return AVERROR_INVALIDDATA;
471
472 30 bytestream2_skip(gb, 4);
473
474
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 30 if (!td->freq)
475 7 td->freq = av_malloc_array(HUF_ENCSIZE, sizeof(*td->freq));
476
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 30 if (!td->he)
477 7 td->he = av_calloc(HUF_ENCSIZE, sizeof(*td->he));
478
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 30 if (!td->freq || !td->he) {
479 ✗ ret = AVERROR(ENOMEM);
480 ✗ return ret;
481 }
482
483 30 memset(td->freq, 0, sizeof(*td->freq) * HUF_ENCSIZE);
484
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 30 if ((ret = huf_unpack_enc_table(gb, im, iM, td->freq)) < 0)
485 ✗ return ret;
486
487
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 30 if (nBits > 8 * bytestream2_get_bytes_left(gb)) {
488 ✗ ret = AVERROR_INVALIDDATA;
489 ✗ return ret;
490 }
491
492
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 30 if ((ret = huf_build_dec_table(s, td, im, iM)) < 0)
493 ✗ return ret;
494 30 return huf_decode(&td->vlc, gb, nBits, td->run_sym, dst_size, dst);
495 }
496
497 1091709 static inline void wdec14(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
498 {
499 1091709 int16_t ls = l;
500 1091709 int16_t hs = h;
501 1091709 int hi = hs;
502 1091709 int ai = ls + (hi & 1) + (hi >> 1);
503 1091709 int16_t as = ai;
504 1091709 int16_t bs = ai - hi;
505
506 1091709 *a = as;
507 1091709 *b = bs;
508 1091709 }
509
510 #define NBITS 16
511 #define A_OFFSET (1 << (NBITS - 1))
512 #define MOD_MASK ((1 << NBITS) - 1)
513
514 ✗ static inline void wdec16(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
515 {
516 ✗ int m = l;
517 ✗ int d = h;
518 ✗ int bb = (m - (d >> 1)) & MOD_MASK;
519 ✗ int aa = (d + bb - A_OFFSET) & MOD_MASK;
520 ✗ *b = bb;
521 ✗ *a = aa;
522 ✗ }
523
524 102 static void wav_decode(uint16_t *in, int nx, int ox,
525 int ny, int oy, uint16_t mx)
526 {
527 102 int w14 = (mx < (1 << 14));
528 102 int n = (nx > ny) ? ny : nx;
529 102 int p = 1;
530 int p2;
531
532
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 693 while (p <= n)
533 591 p <<= 1;
534
535 102 p >>= 1;
536 102 p2 = p;
537 102 p >>= 1;
538
539
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 591 while (p >= 1) {
540 489 uint16_t *py = in;
541 489 uint16_t *ey = in + oy * (ny - p2);
542 uint16_t i00, i01, i10, i11;
543 489 int oy1 = oy * p;
544 489 int oy2 = oy * p2;
545 489 int ox1 = ox * p;
546 489 int ox2 = ox * p2;
547
548
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 3429 for (; py <= ey; py += oy2) {
549 2940 uint16_t *px = py;
550 2940 uint16_t *ex = py + ox * (nx - p2);
551
552
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 275691 for (; px <= ex; px += ox2) {
553 272751 uint16_t *p01 = px + ox1;
554 272751 uint16_t *p10 = px + oy1;
555 272751 uint16_t *p11 = p10 + ox1;
556
557
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 272751 if (w14) {
558 272751 wdec14(*px, *p10, &i00, &i10);
559 272751 wdec14(*p01, *p11, &i01, &i11);
560 272751 wdec14(i00, i01, px, p01);
561 272751 wdec14(i10, i11, p10, p11);
562 } else {
563 ✗ wdec16(*px, *p10, &i00, &i10);
564 ✗ wdec16(*p01, *p11, &i01, &i11);
565 ✗ wdec16(i00, i01, px, p01);
566 ✗ wdec16(i10, i11, p10, p11);
567 }
568 }
569
570
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 2940 if (nx & p) {
571 324 uint16_t *p10 = px + oy1;
572
573
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 324 if (w14)
574 324 wdec14(*px, *p10, &i00, p10);
575 else
576 ✗ wdec16(*px, *p10, &i00, p10);
577
578 324 *px = i00;
579 }
580 }
581
582
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 489 if (ny & p) {
583 15 uint16_t *px = py;
584 15 uint16_t *ex = py + ox * (nx - p2);
585
586
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 396 for (; px <= ex; px += ox2) {
587 381 uint16_t *p01 = px + ox1;
588
589
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 381 if (w14)
590 381 wdec14(*px, *p01, &i00, p01);
591 else
592 ✗ wdec16(*px, *p01, &i00, p01);
593
594 381 *px = i00;
595 }
596 }
597
598 489 p2 = p;
599 489 p >>= 1;
600 }
601 102 }
602
603 30 static int piz_uncompress(const EXRContext *s, const uint8_t *src, int ssize,
604 int dsize, EXRThreadData *td)
605 {
606 GetByteContext gb;
607 uint16_t maxval, min_non_zero, max_non_zero;
608 uint16_t *ptr;
609 30 uint16_t *tmp = (uint16_t *)td->tmp;
610 uint16_t *out;
611 uint16_t *in;
612 int ret, i, j;
613 int pixel_half_size;/* 1 for half, 2 for float and uint32 */
614 EXRChannel *channel;
615 int tmp_offset;
616
617
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 30 if (!td->bitmap)
618 7 td->bitmap = av_malloc(BITMAP_SIZE);
619
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 30 if (!td->lut)
620 7 td->lut = av_malloc(1 << 17);
621
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 30 if (!td->bitmap || !td->lut) {
622 ✗ av_freep(&td->bitmap);
623 ✗ av_freep(&td->lut);
624 ✗ return AVERROR(ENOMEM);
625 }
626
627 30 bytestream2_init(&gb, src, ssize);
628 30 min_non_zero = bytestream2_get_le16(&gb);
629 30 max_non_zero = bytestream2_get_le16(&gb);
630
631
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 30 if (max_non_zero >= BITMAP_SIZE)
632 ✗ return AVERROR_INVALIDDATA;
633
634 30 memset(td->bitmap, 0, FFMIN(min_non_zero, BITMAP_SIZE));
635
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 30 if (min_non_zero <= max_non_zero)
636 30 bytestream2_get_buffer(&gb, td->bitmap + min_non_zero,
637 30 max_non_zero - min_non_zero + 1);
638 30 memset(td->bitmap + max_non_zero + 1, 0, BITMAP_SIZE - max_non_zero - 1);
639
640
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 30 if (bytestream2_get_bytes_left(&gb) < 4)
641 ✗ return AVERROR_INVALIDDATA;
642
643 30 maxval = reverse_lut(td->bitmap, td->lut);
644
645 30 bytestream2_skip(&gb, 4);
646 30 ret = huf_uncompress(s, td, &gb, tmp, dsize / sizeof(uint16_t));
647
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 30 if (ret)
648 ✗ return ret;
649
650 30 ptr = tmp;
651
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 120 for (i = 0; i < s->nb_channels; i++) {
652 90 channel = &s->channels[i];
653
654
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 90 if (channel->pixel_type == EXR_HALF)
655 78 pixel_half_size = 1;
656 else
657 12 pixel_half_size = 2;
658
659
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 192 for (j = 0; j < pixel_half_size; j++)
660 102 wav_decode(ptr + j, td->xsize, pixel_half_size, td->ysize,
661 102 td->xsize * pixel_half_size, maxval);
662 90 ptr += td->xsize * td->ysize * pixel_half_size;
663 }
664
665 30 apply_lut(td->lut, tmp, dsize / sizeof(uint16_t));
666
667 30 out = (uint16_t *)td->uncompressed_data;
668
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 921 for (i = 0; i < td->ysize; i++) {
669 891 tmp_offset = 0;
670
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 3564 for (j = 0; j < s->nb_channels; j++) {
671 2673 channel = &s->channels[j];
672
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 2673 if (channel->pixel_type == EXR_HALF)
673 2289 pixel_half_size = 1;
674 else
675 384 pixel_half_size = 2;
676
677 2673 in = tmp + tmp_offset * td->xsize * td->ysize + i * td->xsize * pixel_half_size;
678 2673 tmp_offset += pixel_half_size;
679
680 #if HAVE_BIGENDIAN
681 s->bbdsp.bswap16_buf(out, in, td->xsize * pixel_half_size);
682 #else
683 2673 memcpy(out, in, td->xsize * 2 * pixel_half_size);
684 #endif
685 2673 out += td->xsize * pixel_half_size;
686 }
687 }
688
689 30 return 0;
690 }
691
692 61 static int pxr24_uncompress(const EXRContext *s, const uint8_t *src,
693 int compressed_size, int uncompressed_size,
694 EXRThreadData *td)
695 {
696 61 unsigned long dest_len, expected_len = 0;
697 61 const uint8_t *in = td->tmp;
698 uint8_t *out;
699 int c, i, j;
700
701
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 279 for (i = 0; i < s->nb_channels; i++) {
702
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 218 if (s->channels[i].pixel_type == EXR_FLOAT) {
703 31 expected_len += (td->xsize * td->ysize * 3);/* PRX 24 store float in 24 bit instead of 32 */
704
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 187 } else if (s->channels[i].pixel_type == EXR_HALF) {
705 181 expected_len += (td->xsize * td->ysize * 2);
706 } else {//UINT 32
707 6 expected_len += (td->xsize * td->ysize * 4);
708 }
709 }
710
711 61 dest_len = expected_len;
712
713
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 61 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK) {
714 ✗ return AVERROR_INVALIDDATA;
715
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 61 } else if (dest_len != expected_len) {
716 ✗ return AVERROR_INVALIDDATA;
717 }
718
719 61 out = td->uncompressed_data;
720
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 950 for (i = 0; i < td->ysize; i++)
721
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 3839 for (c = 0; c < s->nb_channels; c++) {
722 2950 EXRChannel *channel = &s->channels[c];
723 const uint8_t *ptr[4];
724 2950 uint32_t pixel = 0;
725
726
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 2950 switch (channel->pixel_type) {
727 248 case EXR_FLOAT:
728 248 ptr[0] = in;
729 248 ptr[1] = ptr[0] + td->xsize;
730 248 ptr[2] = ptr[1] + td->xsize;
731 248 in = ptr[2] + td->xsize;
732
733
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 3224 for (j = 0; j < td->xsize; ++j) {
734 2976 uint32_t diff = ((unsigned)*(ptr[0]++) << 24) |
735 2976 (*(ptr[1]++) << 16) |
736 2976 (*(ptr[2]++) << 8);
737 2976 pixel += diff;
738 2976 bytestream_put_le32(&out, pixel);
739 }
740 248 break;
741 2651 case EXR_HALF:
742 2651 ptr[0] = in;
743 2651 ptr[1] = ptr[0] + td->xsize;
744 2651 in = ptr[1] + td->xsize;
745
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 1925690 for (j = 0; j < td->xsize; j++) {
746 1923039 uint32_t diff = (*(ptr[0]++) << 8) | *(ptr[1]++);
747
748 1923039 pixel += diff;
749 1923039 bytestream_put_le16(&out, pixel);
750 }
751 2651 break;
752 51 case EXR_UINT:
753 51 ptr[0] = in;
754 51 ptr[1] = ptr[0] + td->xsize;
755 51 ptr[2] = ptr[1] + td->xsize;
756 51 ptr[3] = ptr[2] + td->xsize;
757 51 in = ptr[3] + td->xsize;
758
759
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 690 for (j = 0; j < td->xsize; ++j) {
760 639 uint32_t diff = ((uint32_t)*(ptr[0]++) << 24) |
761 639 (*(ptr[1]++) << 16) |
762 639 (*(ptr[2]++) << 8 ) |
763 639 (*(ptr[3]++));
764 639 pixel += diff;
765 639 bytestream_put_le32(&out, pixel);
766 }
767 51 break;
768 ✗ default:
769 ✗ return AVERROR_INVALIDDATA;
770 }
771 }
772
773 61 return 0;
774 }
775
776 59279 static void unpack_14(const uint8_t b[14], uint16_t s[16])
777 {
778 59279 uint16_t shift = (b[ 2] >> 2) & 15;
779 59279 uint16_t bias = (0x20 << shift);
780 int i;
781
782 59279 s[ 0] = (b[0] << 8) | b[1];
783
784 59279 s[ 4] = s[ 0] + ((((b[ 2] << 4) | (b[ 3] >> 4)) & 0x3f) << shift) - bias;
785 59279 s[ 8] = s[ 4] + ((((b[ 3] << 2) | (b[ 4] >> 6)) & 0x3f) << shift) - bias;
786 59279 s[12] = s[ 8] + ((b[ 4] & 0x3f) << shift) - bias;
787
788 59279 s[ 1] = s[ 0] + ((b[ 5] >> 2) << shift) - bias;
789 59279 s[ 5] = s[ 4] + ((((b[ 5] << 4) | (b[ 6] >> 4)) & 0x3f) << shift) - bias;
790 59279 s[ 9] = s[ 8] + ((((b[ 6] << 2) | (b[ 7] >> 6)) & 0x3f) << shift) - bias;
791 59279 s[13] = s[12] + ((b[ 7] & 0x3f) << shift) - bias;
792
793 59279 s[ 2] = s[ 1] + ((b[ 8] >> 2) << shift) - bias;
794 59279 s[ 6] = s[ 5] + ((((b[ 8] << 4) | (b[ 9] >> 4)) & 0x3f) << shift) - bias;
795 59279 s[10] = s[ 9] + ((((b[ 9] << 2) | (b[10] >> 6)) & 0x3f) << shift) - bias;
796 59279 s[14] = s[13] + ((b[10] & 0x3f) << shift) - bias;
797
798 59279 s[ 3] = s[ 2] + ((b[11] >> 2) << shift) - bias;
799 59279 s[ 7] = s[ 6] + ((((b[11] << 4) | (b[12] >> 4)) & 0x3f) << shift) - bias;
800 59279 s[11] = s[10] + ((((b[12] << 2) | (b[13] >> 6)) & 0x3f) << shift) - bias;
801 59279 s[15] = s[14] + ((b[13] & 0x3f) << shift) - bias;
802
803
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 1007743 for (i = 0; i < 16; ++i) {
804
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 948464 if (s[i] & 0x8000)
805 942347 s[i] &= 0x7fff;
806 else
807 6117 s[i] = ~s[i];
808 }
809 59279 }
810
811 106 static void unpack_3(const uint8_t b[3], uint16_t s[16])
812 {
813 int i;
814
815 106 s[0] = (b[0] << 8) | b[1];
816
817
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 106 if (s[0] & 0x8000)
818 105 s[0] &= 0x7fff;
819 else
820 1 s[0] = ~s[0];
821
822
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 1696 for (i = 1; i < 16; i++)
823 1590 s[i] = s[0];
824 106 }
825
826
827 23 static int b44_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
828 int uncompressed_size, EXRThreadData *td) {
829 23 const int8_t *sr = src;
830 23 int stay_to_uncompress = compressed_size;
831 int nb_b44_block_w, nb_b44_block_h;
832 int index_tl_x, index_tl_y, index_out, index_tmp;
833 uint16_t tmp_buffer[16]; /* B44 use 4x4 half float pixel */
834 int c, iY, iX, y, x;
835 23 int target_channel_offset = 0;
836
837 /* calc B44 block count */
838 23 nb_b44_block_w = td->xsize / 4;
839
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 23 if ((td->xsize % 4) != 0)
840 13 nb_b44_block_w++;
841
842 23 nb_b44_block_h = td->ysize / 4;
843
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 23 if ((td->ysize % 4) != 0)
844 6 nb_b44_block_h++;
845
846
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 156 for (c = 0; c < s->nb_channels; c++) {
847
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 133 if (s->channels[c].pixel_type == EXR_HALF) {/* B44 only compress half float data */
848
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 459 for (iY = 0; iY < nb_b44_block_h; iY++) {
849
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 59759 for (iX = 0; iX < nb_b44_block_w; iX++) {/* For each B44 block */
850
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 59385 if (stay_to_uncompress < 3)
851 ✗ return AVERROR_INVALIDDATA;
852
853
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 59385 if (src[compressed_size - stay_to_uncompress + 2] == 0xfc) { /* B44A block */
854 106 unpack_3(sr, tmp_buffer);
855 106 sr += 3;
856 106 stay_to_uncompress -= 3;
857 } else {/* B44 Block */
858
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 59279 if (stay_to_uncompress < 14)
859 ✗ return AVERROR_INVALIDDATA;
860 59279 unpack_14(sr, tmp_buffer);
861 59279 sr += 14;
862 59279 stay_to_uncompress -= 14;
863 }
864
865 /* copy data to uncompress buffer (B44 block can exceed target resolution)*/
866 59385 index_tl_x = iX * 4;
867 59385 index_tl_y = iY * 4;
868
869
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 295761 for (y = index_tl_y; y < FFMIN(index_tl_y + 4, td->ysize); y++) {
870
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 1180363 for (x = index_tl_x; x < FFMIN(index_tl_x + 4, td->xsize); x++) {
871 943987 index_out = target_channel_offset * td->xsize + y * td->channel_line_size + 2 * x;
872 943987 index_tmp = (y-index_tl_y) * 4 + (x-index_tl_x);
873 943987 td->uncompressed_data[index_out] = tmp_buffer[index_tmp] & 0xff;
874 943987 td->uncompressed_data[index_out + 1] = tmp_buffer[index_tmp] >> 8;
875 }
876 }
877 }
878 }
879 85 target_channel_offset += 2;
880 } else {/* Float or UINT 32 channel */
881
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 48 if (stay_to_uncompress < td->ysize * td->xsize * 4)
882 ✗ return AVERROR_INVALIDDATA;
883
884
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 448 for (y = 0; y < td->ysize; y++) {
885 400 index_out = target_channel_offset * td->xsize + y * td->channel_line_size;
886 400 memcpy(&td->uncompressed_data[index_out], sr, td->xsize * 4);
887 400 sr += td->xsize * 4;
888 }
889 48 target_channel_offset += 4;
890
891 48 stay_to_uncompress -= td->ysize * td->xsize * 4;
892 }
893 }
894
895 23 return 0;
896 }
897
898 ✗ static int ac_uncompress(const EXRContext *s, GetByteContext *gb, float *block)
899 {
900 ✗ int ret = 0, n = 1;
901
902 ✗ while (n < 64) {
903 ✗ uint16_t val = bytestream2_get_ne16(gb);
904
905 ✗ if (val == 0xff00) {
906 ✗ n = 64;
907 ✗ } else if ((val >> 8) == 0xff) {
908 ✗ n += val & 0xff;
909 } else {
910 ✗ ret = n;
911 ✗ block[ff_zigzag_direct[n]] = av_int2float(half2float(val, &s->h2f_tables));
912 ✗ n++;
913 }
914 }
915
916 ✗ return ret;
917 }
918
919 ✗ static void idct_1d(float *blk, int step)
920 {
921 ✗ const float a = .5f * cosf( M_PI / 4.f);
922 ✗ const float b = .5f * cosf( M_PI / 16.f);
923 ✗ const float c = .5f * cosf( M_PI / 8.f);
924 ✗ const float d = .5f * cosf(3.f*M_PI / 16.f);
925 ✗ const float e = .5f * cosf(5.f*M_PI / 16.f);
926 ✗ const float f = .5f * cosf(3.f*M_PI / 8.f);
927 ✗ const float g = .5f * cosf(7.f*M_PI / 16.f);
928
929 float alpha[4], beta[4], theta[4], gamma[4];
930
931 ✗ alpha[0] = c * blk[2 * step];
932 ✗ alpha[1] = f * blk[2 * step];
933 ✗ alpha[2] = c * blk[6 * step];
934 ✗ alpha[3] = f * blk[6 * step];
935
936 ✗ beta[0] = b * blk[1 * step] + d * blk[3 * step] + e * blk[5 * step] + g * blk[7 * step];
937 ✗ beta[1] = d * blk[1 * step] - g * blk[3 * step] - b * blk[5 * step] - e * blk[7 * step];
938 ✗ beta[2] = e * blk[1 * step] - b * blk[3 * step] + g * blk[5 * step] + d * blk[7 * step];
939 ✗ beta[3] = g * blk[1 * step] - e * blk[3 * step] + d * blk[5 * step] - b * blk[7 * step];
940
941 ✗ theta[0] = a * (blk[0 * step] + blk[4 * step]);
942 ✗ theta[3] = a * (blk[0 * step] - blk[4 * step]);
943
944 ✗ theta[1] = alpha[0] + alpha[3];
945 ✗ theta[2] = alpha[1] - alpha[2];
946
947 ✗ gamma[0] = theta[0] + theta[1];
948 ✗ gamma[1] = theta[3] + theta[2];
949 ✗ gamma[2] = theta[3] - theta[2];
950 ✗ gamma[3] = theta[0] - theta[1];
951
952 ✗ blk[0 * step] = gamma[0] + beta[0];
953 ✗ blk[1 * step] = gamma[1] + beta[1];
954 ✗ blk[2 * step] = gamma[2] + beta[2];
955 ✗ blk[3 * step] = gamma[3] + beta[3];
956
957 ✗ blk[4 * step] = gamma[3] - beta[3];
958 ✗ blk[5 * step] = gamma[2] - beta[2];
959 ✗ blk[6 * step] = gamma[1] - beta[1];
960 ✗ blk[7 * step] = gamma[0] - beta[0];
961 ✗ }
962
963 ✗ static void dct_inverse(float *block)
964 {
965 ✗ for (int i = 0; i < 8; i++)
966 ✗ idct_1d(block + i, 8);
967
968 ✗ for (int i = 0; i < 8; i++) {
969 ✗ idct_1d(block, 1);
970 ✗ block += 8;
971 }
972 ✗ }
973
974 ✗ static void convert(float y, float u, float v,
975 float *b, float *g, float *r)
976 {
977 ✗ *r = y + 1.5747f * v;
978 ✗ *g = y - 0.1873f * u - 0.4682f * v;
979 ✗ *b = y + 1.8556f * u;
980 ✗ }
981
982 ✗ static float to_linear(float x, float scale)
983 {
984 ✗ float ax = fabsf(x);
985
986 ✗ if (ax <= 1.f) {
987 ✗ return FFSIGN(x) * powf(ax, 2.2f * scale);
988 } else {
989 ✗ const float log_base = expf(2.2f * scale);
990
991 ✗ return FFSIGN(x) * powf(log_base, ax - 1.f);
992 }
993 }
994
995 ✗ static int dwa_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
996 int uncompressed_size, EXRThreadData *td)
997 {
998 int64_t version, lo_usize, lo_size;
999 int64_t ac_size, dc_size, rle_usize, rle_csize, rle_raw_size;
1000 int64_t ac_count, dc_count, ac_compression;
1001 ✗ const int dc_w = (td->xsize + 7) >> 3;
1002 ✗ const int dc_h = (td->ysize + 7) >> 3;
1003 GetByteContext gb, agb;
1004 int skip, ret;
1005 ✗ int have_rle = 0;
1006
1007 ✗ if (compressed_size <= 88)
1008 ✗ return AVERROR_INVALIDDATA;
1009
1010 ✗ version = AV_RL64(src + 0);
1011 ✗ if (version != 2)
1012 ✗ return AVERROR_INVALIDDATA;
1013
1014 ✗ if (s->nb_channels < 3) {
1015 ✗ avpriv_request_sample(s->avctx, "Gray DWA");
1016 ✗ return AVERROR_PATCHWELCOME;
1017 }
1018
1019 ✗ lo_usize = AV_RL64(src + 8);
1020 ✗ lo_size = AV_RL64(src + 16);
1021 ✗ ac_size = AV_RL64(src + 24);
1022 ✗ dc_size = AV_RL64(src + 32);
1023 ✗ rle_csize = AV_RL64(src + 40);
1024 ✗ rle_usize = AV_RL64(src + 48);
1025 ✗ rle_raw_size = AV_RL64(src + 56);
1026 ✗ ac_count = AV_RL64(src + 64);
1027 ✗ dc_count = AV_RL64(src + 72);
1028 ✗ ac_compression = AV_RL64(src + 80);
1029
1030 ✗ if ( compressed_size < (uint64_t)(lo_size | ac_size | dc_size | rle_csize) || compressed_size < 88LL + lo_size + ac_size + dc_size + rle_csize
1031 ✗ || ac_count > (uint64_t)INT_MAX/2
1032 )
1033 ✗ return AVERROR_INVALIDDATA;
1034
1035 ✗ if (ac_size <= 0) {
1036 ✗ avpriv_request_sample(s->avctx, "Zero ac_size");
1037 ✗ return AVERROR_INVALIDDATA;
1038 }
1039
1040 ✗ if ((uint64_t)rle_raw_size > INT_MAX) {
1041 ✗ avpriv_request_sample(s->avctx, "Too big rle_raw_size");
1042 ✗ return AVERROR_INVALIDDATA;
1043 }
1044
1045 ✗ if (td->xsize % 8 || td->ysize % 8) {
1046 ✗ avpriv_request_sample(s->avctx, "odd dimensions DWA");
1047 }
1048
1049 ✗ bytestream2_init(&gb, src + 88, compressed_size - 88);
1050 ✗ skip = bytestream2_get_le16(&gb);
1051 ✗ if (skip < 2)
1052 ✗ return AVERROR_INVALIDDATA;
1053
1054 ✗ bytestream2_skip(&gb, skip - 2);
1055
1056 ✗ if (lo_size > 0) {
1057 ✗ if (lo_usize > uncompressed_size)
1058 ✗ return AVERROR_INVALIDDATA;
1059 ✗ bytestream2_skip(&gb, lo_size);
1060 }
1061
1062 ✗ if (ac_size > 0) {
1063 unsigned long dest_len;
1064 ✗ GetByteContext agb = gb;
1065
1066 ✗ if (ac_count > 3LL * td->xsize * s->scan_lines_per_block)
1067 ✗ return AVERROR_INVALIDDATA;
1068
1069 ✗ dest_len = ac_count * 2LL;
1070
1071 ✗ av_fast_padded_malloc(&td->ac_data, &td->ac_size, dest_len);
1072 ✗ if (!td->ac_data)
1073 ✗ return AVERROR(ENOMEM);
1074
1075 ✗ switch (ac_compression) {
1076 ✗ case 0:
1077 ✗ ret = huf_uncompress(s, td, &agb, (int16_t *)td->ac_data, ac_count);
1078 ✗ if (ret < 0)
1079 ✗ return ret;
1080 ✗ break;
1081 ✗ case 1:
1082 ✗ if (uncompress(td->ac_data, &dest_len, agb.buffer, ac_size) != Z_OK ||
1083 ✗ dest_len != ac_count * 2LL)
1084 ✗ return AVERROR_INVALIDDATA;
1085 ✗ break;
1086 ✗ default:
1087 ✗ return AVERROR_INVALIDDATA;
1088 }
1089
1090 ✗ bytestream2_skip(&gb, ac_size);
1091 }
1092
1093 {
1094 unsigned long dest_len;
1095 ✗ GetByteContext agb = gb;
1096
1097 ✗ if (dc_count != dc_w * dc_h * 3)
1098 ✗ return AVERROR_INVALIDDATA;
1099
1100 ✗ dest_len = dc_count * 2LL;
1101
1102 ✗ av_fast_padded_malloc(&td->dc_data, &td->dc_size, FFALIGN(dest_len, 64) * 2);
1103 ✗ if (!td->dc_data)
1104 ✗ return AVERROR(ENOMEM);
1105
1106 ✗ if (uncompress(td->dc_data + FFALIGN(dest_len, 64), &dest_len, agb.buffer, dc_size) != Z_OK ||
1107 ✗ (dest_len != dc_count * 2LL))
1108 ✗ return AVERROR_INVALIDDATA;
1109
1110 ✗ s->dsp.predictor(td->dc_data + FFALIGN(dest_len, 64), dest_len);
1111 ✗ s->dsp.reorder_pixels(td->dc_data, td->dc_data + FFALIGN(dest_len, 64), dest_len);
1112
1113 ✗ bytestream2_skip(&gb, dc_size);
1114 }
1115
1116 ✗ if (rle_raw_size > 0 && rle_csize > 0 && rle_usize > 0) {
1117 ✗ unsigned long dest_len = rle_usize;
1118
1119 ✗ if (2LL * td->xsize * td->ysize > rle_raw_size)
1120 ✗ return AVERROR_INVALIDDATA;
1121
1122 ✗ av_fast_padded_malloc(&td->rle_data, &td->rle_size, rle_usize);
1123 ✗ if (!td->rle_data)
1124 ✗ return AVERROR(ENOMEM);
1125
1126 ✗ av_fast_padded_malloc(&td->rle_raw_data, &td->rle_raw_size, rle_raw_size);
1127 ✗ if (!td->rle_raw_data)
1128 ✗ return AVERROR(ENOMEM);
1129
1130 ✗ if (uncompress(td->rle_data, &dest_len, gb.buffer, rle_csize) != Z_OK ||
1131 ✗ (dest_len != rle_usize))
1132 ✗ return AVERROR_INVALIDDATA;
1133
1134 ✗ ret = rle(td->rle_raw_data, td->rle_data, rle_usize, rle_raw_size);
1135 ✗ if (ret < 0)
1136 ✗ return ret;
1137 ✗ bytestream2_skip(&gb, rle_csize);
1138
1139 ✗ have_rle = 1;
1140 }
1141
1142 ✗ bytestream2_init(&agb, td->ac_data, ac_count * 2);
1143
1144 ✗ for (int y = 0; y < td->ysize; y += 8) {
1145 ✗ for (int x = 0; x < td->xsize; x += 8) {
1146 ✗ const int o = s->nb_channels == 4;
1147 ✗ float *yb = td->block[0];
1148 ✗ float *ub = td->block[1];
1149 ✗ float *vb = td->block[2];
1150 ✗ int bw = FFMIN(8, td->xsize - x);
1151 ✗ int bh = FFMIN(8, td->ysize - y);
1152
1153 ✗ memset(td->block, 0, sizeof(td->block));
1154
1155 ✗ for (int j = 0; j < 3; j++) {
1156 ✗ float *block = td->block[j];
1157 ✗ const int idx = (x >> 3) + (y >> 3) * dc_w + dc_w * dc_h * j;
1158 ✗ uint16_t *dc = (uint16_t *)td->dc_data;
1159 union av_intfloat32 dc_val;
1160
1161 ✗ dc_val.i = half2float(dc[idx], &s->h2f_tables);
1162
1163 ✗ block[0] = dc_val.f;
1164 ✗ ac_uncompress(s, &agb, block);
1165 ✗ dct_inverse(block);
1166 }
1167
1168 ✗ if (s->pixel_type == EXR_HALF) {
1169 ✗ uint16_t *bo = ((uint16_t *)td->uncompressed_data) +
1170 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1171 ✗ uint16_t *go = ((uint16_t *)td->uncompressed_data) +
1172 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1173 ✗ uint16_t *ro = ((uint16_t *)td->uncompressed_data) +
1174 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1175
1176 ✗ for (int yy = 0; yy < bh; yy++) {
1177 ✗ for (int xx = 0; xx < bw; xx++) {
1178 ✗ const int idx = xx + yy * 8;
1179 float b, g, r;
1180
1181 ✗ convert(yb[idx], ub[idx], vb[idx], &b, &g, &r);
1182
1183 ✗ bo[xx] = float2half(av_float2int(to_linear(b, 1.f)), &s->f2h_tables);
1184 ✗ go[xx] = float2half(av_float2int(to_linear(g, 1.f)), &s->f2h_tables);
1185 ✗ ro[xx] = float2half(av_float2int(to_linear(r, 1.f)), &s->f2h_tables);
1186 }
1187
1188 ✗ bo += td->xsize * s->nb_channels;
1189 ✗ go += td->xsize * s->nb_channels;
1190 ✗ ro += td->xsize * s->nb_channels;
1191 }
1192 } else {
1193 ✗ float *bo = ((float *)td->uncompressed_data) +
1194 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1195 ✗ float *go = ((float *)td->uncompressed_data) +
1196 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1197 ✗ float *ro = ((float *)td->uncompressed_data) +
1198 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1199
1200 ✗ for (int yy = 0; yy < bh; yy++) {
1201 ✗ for (int xx = 0; xx < bw; xx++) {
1202 ✗ const int idx = xx + yy * 8;
1203
1204 ✗ convert(yb[idx], ub[idx], vb[idx], &bo[xx], &go[xx], &ro[xx]);
1205
1206 ✗ bo[xx] = to_linear(bo[xx], 1.f);
1207 ✗ go[xx] = to_linear(go[xx], 1.f);
1208 ✗ ro[xx] = to_linear(ro[xx], 1.f);
1209 }
1210
1211 ✗ bo += td->xsize * s->nb_channels;
1212 ✗ go += td->xsize * s->nb_channels;
1213 ✗ ro += td->xsize * s->nb_channels;
1214 }
1215 }
1216 }
1217 }
1218
1219 ✗ if (s->nb_channels < 4)
1220 ✗ return 0;
1221
1222 ✗ if (s->pixel_type == EXR_HALF) {
1223 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1224 ✗ uint16_t *ao = ((uint16_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1225 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1226 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1227
1228 ✗ for (int x = 0; x < td->xsize; x++)
1229 ✗ ao[x] = ai0[x] | (ai1[x] << 8);
1230 }
1231 } else {
1232 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1233 ✗ uint32_t *ao = ((uint32_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1234 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1235 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1236
1237 ✗ for (int x = 0; x < td->xsize; x++) {
1238 ✗ uint16_t ha = ai0[x] | (ai1[x] << 8);
1239
1240 ✗ ao[x] = half2float(ha, &s->h2f_tables);
1241 }
1242 }
1243 }
1244
1245 ✗ return 0;
1246 }
1247
1248 37267 static int decode_block(AVCodecContext *avctx, void *tdata,
1249 int jobnr, int threadnr)
1250 {
1251 37267 const EXRContext *s = avctx->priv_data;
1252 37267 AVFrame *const p = s->picture;
1253 37267 EXRThreadData *td = &s->thread_data[threadnr];
1254 37267 const uint8_t *channel_buffer[4] = { 0 };
1255 37267 const uint8_t *buf = s->buf;
1256 uint64_t line_offset, uncompressed_size;
1257 uint8_t *ptr;
1258 uint32_t data_size;
1259 37267 int line, col = 0;
1260 uint64_t tile_x, tile_y, tile_level_x, tile_level_y;
1261 const uint8_t *src;
1262 37267 int step = s->desc->comp[0].step;
1263 37267 int bxmin = 0, axmax = 0, window_xoffset = 0;
1264 int window_xmin, window_xmax, window_ymin, window_ymax;
1265 int data_xoffset, data_yoffset, data_window_offset, xsize, ysize;
1266 37267 int i, x, buf_size = s->buf_size;
1267 int c, rgb_channel_count;
1268 #if FF_API_EXR_GAMMA
1269 37267 float one_gamma = 1.0f / s->gamma;
1270 37267 av_csp_trc_function trc_func = av_csp_trc_func_from_id(s->apply_trc_type);
1271 #endif
1272 int ret;
1273
1274 37267 line_offset = AV_RL64(s->gb.buffer + jobnr * 8);
1275
1276
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 37267 if (s->is_tile) {
1277
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 104 if (buf_size < 20 || line_offset > buf_size - 20)
1278 ✗ return AVERROR_INVALIDDATA;
1279
1280 104 src = buf + line_offset + 20;
1281
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 104 if (s->is_multipart)
1282 ✗ src += 4;
1283
1284 104 tile_x = AV_RL32(src - 20);
1285 104 tile_y = AV_RL32(src - 16);
1286 104 tile_level_x = AV_RL32(src - 12);
1287 104 tile_level_y = AV_RL32(src - 8);
1288
1289 104 data_size = AV_RL32(src - 4);
1290
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 104 if (data_size <= 0 || data_size > buf_size - line_offset - 20)
1291 ✗ return AVERROR_INVALIDDATA;
1292
1293
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 104 if (tile_level_x || tile_level_y) { /* tile level, is not the full res level */
1294 ✗ avpriv_report_missing_feature(s->avctx, "Subres tile before full res tile");
1295 ✗ return AVERROR_PATCHWELCOME;
1296 }
1297
1298
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 104 if (tile_x && s->tile_attr.xSize + (int64_t)FFMAX(s->xmin, 0) >= INT_MAX / tile_x )
1299 ✗ return AVERROR_INVALIDDATA;
1300
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 104 if (tile_y && s->tile_attr.ySize + (int64_t)FFMAX(s->ymin, 0) >= INT_MAX / tile_y )
1301 ✗ return AVERROR_INVALIDDATA;
1302
1303 104 line = s->ymin + s->tile_attr.ySize * tile_y;
1304 104 col = s->tile_attr.xSize * tile_x;
1305
1306
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 104 if (line < s->ymin || line > s->ymax ||
1307
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 104 s->xmin + col < s->xmin || s->xmin + col > s->xmax)
1308 ✗ return AVERROR_INVALIDDATA;
1309
1310 104 td->ysize = FFMIN(s->tile_attr.ySize, s->ydelta - tile_y * s->tile_attr.ySize);
1311 104 td->xsize = FFMIN(s->tile_attr.xSize, s->xdelta - tile_x * s->tile_attr.xSize);
1312
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 208 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1314 104 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1315 ✗ return AVERROR_INVALIDDATA;
1316
1317 104 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1318 104 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1319 } else {
1320
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 37163 if (buf_size < 8 || line_offset > buf_size - 8)
1321 ✗ return AVERROR_INVALIDDATA;
1322
1323 37163 src = buf + line_offset + 8;
1324
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 37163 if (s->is_multipart)
1325 ✗ src += 4;
1326 37163 line = AV_RL32(src - 8);
1327
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 37163 if (line < s->ymin || line > s->ymax)
1329 ✗ return AVERROR_INVALIDDATA;
1330
1331 37163 data_size = AV_RL32(src - 4);
1332
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 37163 if (data_size <= 0 || data_size > buf_size - line_offset - 8)
1333 ✗ return AVERROR_INVALIDDATA;
1334
1335 37163 td->ysize = FFMIN(s->scan_lines_per_block, s->ymax - line + 1); /* s->ydelta - line ?? */
1336 37163 td->xsize = s->xdelta;
1337
1338
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 74326 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1339 37163 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1340 ✗ return AVERROR_INVALIDDATA;
1341
1342 37163 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1343 37163 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1344
1345
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 37163 if ((s->compression == EXR_RAW && (data_size != uncompressed_size ||
1346
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 11927 line_offset > buf_size - uncompressed_size)) ||
1347
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 37163 (s->compression != EXR_RAW && (data_size > uncompressed_size ||
1348
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 25236 line_offset > buf_size - data_size))) {
1349 ✗ return AVERROR_INVALIDDATA;
1350 }
1351 }
1352
1353 37267 window_xmin = FFMIN(avctx->width, FFMAX(0, s->xmin + col));
1354 37267 window_xmax = FFMIN(avctx->width, FFMAX(0, s->xmin + col + td->xsize));
1355 37267 window_ymin = FFMIN(avctx->height, FFMAX(0, line ));
1356 37267 window_ymax = FFMIN(avctx->height, FFMAX(0, line + td->ysize));
1357 37267 xsize = window_xmax - window_xmin;
1358 37267 ysize = window_ymax - window_ymin;
1359
1360 /* tile or scanline not visible skip decoding */
1361
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 37267 if (xsize <= 0 || ysize <= 0)
1362 433 return 0;
1363
1364 /* is the first tile or is a scanline */
1365
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 36834 if(col == 0) {
1366 36794 window_xmin = 0;
1367 /* pixels to add at the left of the display window */
1368 36794 window_xoffset = FFMAX(0, s->xmin);
1369 /* bytes to add at the left of the display window */
1370 36794 bxmin = window_xoffset * step;
1371 }
1372
1373 /* is the last tile or is a scanline */
1374
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 36834 if(col + td->xsize == s->xdelta) {
1375 36794 window_xmax = avctx->width;
1376 /* bytes to add at the right of the display window */
1377 36794 axmax = FFMAX(0, (avctx->width - (s->xmax + 1))) * step;
1378 }
1379
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 36834 if (avctx->max_pixels && uncompressed_size > avctx->max_pixels * 16LL)
1381 ✗ return AVERROR_INVALIDDATA;
1382
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 36834 if (data_size < uncompressed_size || s->is_tile) { /* td->tmp is use for tile reorganization */
1384 17828 av_fast_padded_malloc(&td->tmp, &td->tmp_size, uncompressed_size);
1385
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 17828 if (!td->tmp)
1386 ✗ return AVERROR(ENOMEM);
1387 }
1388
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 36834 if (data_size < uncompressed_size) {
1390 17815 av_fast_padded_malloc(&td->uncompressed_data,
1391 17815 &td->uncompressed_size, uncompressed_size + 64);/* Force 64 padding for AVX2 reorder_pixels dst */
1392
1393
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 17815 if (!td->uncompressed_data)
1394 ✗ return AVERROR(ENOMEM);
1395
1396 17815 ret = AVERROR_INVALIDDATA;
1397
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 17815 switch (s->compression) {
1398 12853 case EXR_ZIP1:
1399 case EXR_ZIP16:
1400 12853 ret = zip_uncompress(s, src, data_size, uncompressed_size, td);
1401 12853 break;
1402 30 case EXR_PIZ:
1403 30 ret = piz_uncompress(s, src, data_size, uncompressed_size, td);
1404 30 break;
1405 61 case EXR_PXR24:
1406 61 ret = pxr24_uncompress(s, src, data_size, uncompressed_size, td);
1407 61 break;
1408 4848 case EXR_RLE:
1409 4848 ret = rle_uncompress(s, src, data_size, uncompressed_size, td);
1410 4848 break;
1411 23 case EXR_B44:
1412 case EXR_B44A:
1413 23 ret = b44_uncompress(s, src, data_size, uncompressed_size, td);
1414 23 break;
1415 ✗ case EXR_DWAA:
1416 case EXR_DWAB:
1417 ✗ ret = dwa_uncompress(s, src, data_size, uncompressed_size, td);
1418 ✗ break;
1419 }
1420
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 17815 if (ret < 0) {
1421 ✗ av_log(avctx, AV_LOG_ERROR, "decode_block() failed.\n");
1422 ✗ return ret;
1423 }
1424 17815 src = td->uncompressed_data;
1425 }
1426
1427 /* offsets to crop data outside display window */
1428
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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));
1430 36834 data_window_offset = (data_yoffset * td->channel_line_size) + data_xoffset;
1431
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 36834 if (s->channel_offsets[3] >= 0)
1433 13595 channel_buffer[3] = src + (td->xsize * s->channel_offsets[3]) + data_window_offset;
1434
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 36834 if (!s->is_luma) {
1435 25358 channel_buffer[0] = src + (td->xsize * s->channel_offsets[0]) + data_window_offset;
1436 25358 channel_buffer[1] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1437 25358 channel_buffer[2] = src + (td->xsize * s->channel_offsets[2]) + data_window_offset;
1438 25358 rgb_channel_count = 3;
1439 } else { /* put y data in the first channel_buffer and if needed, alpha in the second */
1440 11476 channel_buffer[0] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1441
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 11476 if (!(s->desc->flags & AV_PIX_FMT_FLAG_PLANAR))
1442 11476 channel_buffer[1] = channel_buffer[3];
1443 11476 rgb_channel_count = 1;
1444 }
1445
1446
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 36834 if (s->desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
1447
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 137939 for (c = 0; c < s->desc->nb_components; c++) {
1448 101115 int plane = s->desc->comp[c].plane;
1449 101115 ptr = p->data[plane] + window_ymin * p->linesize[plane] + (window_xmin * step) + s->desc->comp[c].offset;
1450
1451
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 247623 for (i = 0; i < ysize; i++, ptr += p->linesize[plane]) {
1452 146508 const uint8_t *src = channel_buffer[c];
1453 146508 uint8_t *ptr_x = ptr + window_xoffset * step;
1454
1455 // Zero out the start if xmin is not 0
1456
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 146508 if (s->desc->flags & AV_PIX_FMT_FLAG_PLANAR || !c)
1457 146500 memset(ptr, 0, bxmin);
1458
1459
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 146508 if (s->pixel_type == EXR_FLOAT) {
1460 // 32-bit
1461 #if FF_API_EXR_GAMMA
1462
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 121876 if (trc_func && (!c || (c < 3 && s->desc->flags & AV_PIX_FMT_FLAG_PLANAR))) {
1463 ✗ for (int x = 0; x < xsize; x++, ptr_x += step) {
1464 ✗ float f = av_int2float(bytestream_get_le32(&src));
1465 ✗ AV_WN32A(ptr_x, av_float2int(trc_func(f)));
1466 }
1467
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 121876 } else if (one_gamma != 1.f) {
1468 ✗ for (int x = 0; x < xsize; x++, ptr_x += step) {
1469 ✗ float f = av_int2float(bytestream_get_le32(&src));
1470 ✗ if (f > 0.0f && c < 3) /* avoid negative values */
1471 ✗ f = powf(f, one_gamma);
1472 ✗ AV_WN32A(ptr_x, av_float2int(f));
1473 }
1474 } else
1475 #endif
1476
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 42372700 for (int x = 0; x < xsize; x++, ptr_x += step)
1477 42250824 AV_WN32A(ptr_x, bytestream_get_le32(&src));
1478
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 24632 } else if (s->pixel_type == EXR_HALF) {
1479 // 16-bit
1480 #if FF_API_EXR_GAMMA
1481
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 24632 if (one_gamma != 1.f || (trc_func && (!c || (c < 3 && s->desc->flags & AV_PIX_FMT_FLAG_PLANAR)))) {
1482 ✗ for (int x = 0; x < xsize; x++, ptr_x += step)
1483 ✗ AV_WN16A(ptr_x, s->gamma_table[bytestream_get_le16(&src)]);
1484 } else
1485 #endif
1486
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 10538537 for (int x = 0; x < xsize; x++, ptr_x += step)
1487 10513905 AV_WN16A(ptr_x, bytestream_get_le16(&src));
1488 }
1489
1490 // Zero out the end if xmax+1 is not w
1491
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 146508 if (s->desc->flags & AV_PIX_FMT_FLAG_PLANAR || !c)
1492 146500 memset(ptr_x, 0, axmax);
1493 146508 channel_buffer[c] += td->channel_line_size;
1494 }
1495 }
1496 } else {
1497
1498 av_assert1(s->pixel_type == EXR_UINT);
1499 10 ptr = p->data[0] + window_ymin * p->linesize[0] + (window_xmin * s->desc->nb_components * 2);
1500
1501
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 185 for (i = 0; i < ysize; i++, ptr += p->linesize[0]) {
1502
1503 const uint8_t * a;
1504 const uint8_t *rgb[3];
1505 uint16_t *ptr_x;
1506
1507
2/2
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 700 for (c = 0; c < rgb_channel_count; c++) {
1508 525 rgb[c] = channel_buffer[c];
1509 }
1510
1511
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 175 if (channel_buffer[3])
1512 ✗ a = channel_buffer[3];
1513
1514 175 ptr_x = (uint16_t *) ptr;
1515
1516 // Zero out the start if xmin is not 0
1517 175 memset(ptr_x, 0, bxmin);
1518 175 ptr_x += window_xoffset * s->desc->nb_components;
1519
1520
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 5484 for (x = 0; x < xsize; x++) {
1521
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 21236 for (c = 0; c < rgb_channel_count; c++) {
1522 15927 *ptr_x++ = bytestream_get_le32(&rgb[c]) >> 16;
1523 }
1524
1525
1/2
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✓ Branch 1 taken 5309 times.
 5309 if (channel_buffer[3])
1526 ✗ *ptr_x++ = bytestream_get_le32(&a) >> 16;
1527 }
1528
1529 // Zero out the end if xmax+1 is not w
1530 175 memset(ptr_x, 0, axmax);
1531
1532 175 channel_buffer[0] += td->channel_line_size;
1533 175 channel_buffer[1] += td->channel_line_size;
1534 175 channel_buffer[2] += td->channel_line_size;
1535
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 175 if (channel_buffer[3])
1536 ✗ channel_buffer[3] += td->channel_line_size;
1537 }
1538 }
1539
1540 36834 return 0;
1541 }
1542
1543 ✗ static void skip_header_chunk(EXRContext *s)
1544 {
1545 ✗ GetByteContext *gb = &s->gb;
1546
1547 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1548 ✗ if (!bytestream2_peek_byte(gb))
1549 ✗ break;
1550
1551 // Process unknown variables
1552 ✗ for (int i = 0; i < 2; i++) // value_name and value_type
1553 ✗ while (bytestream2_get_byte(gb) != 0);
1554
1555 // Skip variable length
1556 ✗ bytestream2_skip(gb, bytestream2_get_le32(gb));
1557 }
1558 ✗ }
1559
1560 /**
1561 * Check if the variable name corresponds to its data type.
1562 *
1563 * @param s the EXRContext
1564 * @param value_name name of the variable to check
1565 * @param value_type type of the variable to check
1566 * @param minimum_length minimum length of the variable data
1567 *
1568 * @return bytes to read containing variable data
1569 * -1 if variable is not found
1570 * 0 if buffer ended prematurely
1571 */
1572 32478 static int check_header_variable(EXRContext *s,
1573 const char *value_name,
1574 const char *value_type,
1575 unsigned int minimum_length)
1576 {
1577 32478 GetByteContext *gb = &s->gb;
1578 32478 int var_size = -1;
1579
1580
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✗ Branch 2 not taken.
 32478 if (bytestream2_get_bytes_left(gb) >= minimum_length &&
1581
2/2
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✓ Branch 1 taken 30312 times.
 32478 !strcmp(gb->buffer, value_name)) {
1582 // found value_name, jump to value_type (null terminated strings)
1583 2166 gb->buffer += strlen(value_name) + 1;
1584
1/2
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✗ Branch 1 not taken.
 2166 if (!strcmp(gb->buffer, value_type)) {
1585 2166 gb->buffer += strlen(value_type) + 1;
1586 2166 var_size = bytestream2_get_le32(gb);
1587 // don't go read past boundaries
1588
1/2
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 2166 if (var_size > bytestream2_get_bytes_left(gb))
1589 ✗ var_size = 0;
1590 } else {
1591 // value_type not found, reset the buffer
1592 ✗ gb->buffer -= strlen(value_name) + 1;
1593 ✗ av_log(s->avctx, AV_LOG_WARNING,
1594 "Unknown data type %s for header variable %s.\n",
1595 value_type, value_name);
1596 }
1597 }
1598
1599 32478 return var_size;
1600 }
1601
1602 316 static int decode_header(EXRContext *s, AVFrame *frame)
1603 {
1604 316 AVDictionary *metadata = NULL;
1605 316 GetByteContext *gb = &s->gb;
1606 int magic_number, version, flags;
1607 316 int layer_match = 0;
1608 int ret;
1609 316 int dup_channels = 0;
1610
1611 316 s->current_channel_offset = 0;
1612 316 s->xmin = ~0;
1613 316 s->xmax = ~0;
1614 316 s->ymin = ~0;
1615 316 s->ymax = ~0;
1616 316 s->xdelta = ~0;
1617 316 s->ydelta = ~0;
1618 316 s->channel_offsets[0] = -1;
1619 316 s->channel_offsets[1] = -1;
1620 316 s->channel_offsets[2] = -1;
1621 316 s->channel_offsets[3] = -1;
1622 316 s->pixel_type = EXR_UNKNOWN;
1623 316 s->compression = EXR_UNKN;
1624 316 s->nb_channels = 0;
1625 316 s->w = 0;
1626 316 s->h = 0;
1627 316 s->tile_attr.xSize = -1;
1628 316 s->tile_attr.ySize = -1;
1629 316 s->is_tile = 0;
1630 316 s->is_multipart = 0;
1631 316 s->is_luma = 0;
1632 316 s->has_channel = 0;
1633 316 s->current_part = 0;
1634
1635
1/2
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✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) < 10) {
1636 ✗ av_log(s->avctx, AV_LOG_ERROR, "Header too short to parse.\n");
1637 ✗ return AVERROR_INVALIDDATA;
1638 }
1639
1640 316 magic_number = bytestream2_get_le32(gb);
1641
1/2
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 316 if (magic_number != 20000630) {
1642 /* As per documentation of OpenEXR, it is supposed to be
1643 * int 20000630 little-endian */
1644 ✗ av_log(s->avctx, AV_LOG_ERROR, "Wrong magic number %d.\n", magic_number);
1645 ✗ return AVERROR_INVALIDDATA;
1646 }
1647
1648 316 version = bytestream2_get_byte(gb);
1649
1/2
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 316 if (version != 2) {
1650 ✗ avpriv_report_missing_feature(s->avctx, "Version %d", version);
1651 ✗ return AVERROR_PATCHWELCOME;
1652 }
1653
1654 316 flags = bytestream2_get_le24(gb);
1655
1656
2/2
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 316 if (flags & 0x02)
1657 44 s->is_tile = 1;
1658
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 316 if (flags & 0x10)
1659 ✗ s->is_multipart = 1;
1660
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 316 if (flags & 0x08) {
1661 ✗ avpriv_report_missing_feature(s->avctx, "deep data");
1662 ✗ return AVERROR_PATCHWELCOME;
1663 }
1664
1665 // Parse the header
1666
1/2
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 4396 while (bytestream2_get_bytes_left(gb) > 0) {
1667 int var_size;
1668
1669
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 4396 while (s->is_multipart && s->current_part < s->selected_part &&
1670 ✗ bytestream2_get_bytes_left(gb) > 0) {
1671 ✗ if (bytestream2_peek_byte(gb)) {
1672 ✗ skip_header_chunk(s);
1673 } else {
1674 ✗ bytestream2_skip(gb, 1);
1675 ✗ if (!bytestream2_peek_byte(gb))
1676 ✗ break;
1677 }
1678 ✗ bytestream2_skip(gb, 1);
1679 ✗ s->current_part++;
1680 }
1681
1682
2/2
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✓ Branch 2 taken 4080 times.
 4396 if (!bytestream2_peek_byte(gb)) {
1683
1/2
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✗ Branch 1 not taken.
 316 if (!s->is_multipart)
1684 316 break;
1685 ✗ bytestream2_skip(gb, 1);
1686 ✗ if (s->current_part == s->selected_part) {
1687 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1688 ✗ if (bytestream2_peek_byte(gb)) {
1689 ✗ skip_header_chunk(s);
1690 } else {
1691 ✗ bytestream2_skip(gb, 1);
1692 ✗ if (!bytestream2_peek_byte(gb))
1693 ✗ break;
1694 }
1695 }
1696 }
1697 ✗ if (!bytestream2_peek_byte(gb))
1698 ✗ break;
1699 ✗ s->current_part++;
1700 }
1701
1702
2/2
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✓ Branch 2 taken 3764 times.
 4080 if ((var_size = check_header_variable(s, "channels",
1703 316 "chlist", 38)) >= 0) {
1704 GetByteContext ch_gb;
1705
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 316 if (!var_size) {
1706 ✗ ret = AVERROR_INVALIDDATA;
1707 ✗ goto fail;
1708 }
1709
1710 316 bytestream2_init(&ch_gb, gb->buffer, var_size);
1711
1712
2/2
✓ Branch 1 taken 1212 times.
✓ Branch 2 taken 316 times.
 1528 while (bytestream2_get_bytes_left(&ch_gb) >= 19) {
1713 EXRChannel *channel;
1714 enum ExrPixelType current_pixel_type;
1715 1212 int channel_index = -1;
1716 int xsub, ysub;
1717
1718
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 1212 if (strcmp(s->layer, "") != 0) {
1719
2/2
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 272 if (strncmp(ch_gb.buffer, s->layer, strlen(s->layer)) == 0) {
1720 150 layer_match = 1;
1721 150 av_log(s->avctx, AV_LOG_INFO,
1722 "Channel match layer : %s.\n", ch_gb.buffer);
1723 150 ch_gb.buffer += strlen(s->layer);
1724
1/2
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✗ Branch 1 not taken.
 150 if (*ch_gb.buffer == '.')
1725 150 ch_gb.buffer++; /* skip dot if not given */
1726 } else {
1727 122 layer_match = 0;
1728 122 av_log(s->avctx, AV_LOG_INFO,
1729 "Channel doesn't match layer : %s.\n", ch_gb.buffer);
1730 }
1731 } else {
1732 940 layer_match = 1;
1733 }
1734
1735
2/2
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 1212 if (layer_match) { /* only search channel if the layer match is valid */
1736
2/2
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✓ Branch 1 taken 152 times.
 1090 if (strlen(ch_gb.buffer) == 1) {
1737 938 int ch_chr = av_toupper(*ch_gb.buffer);
1738
2/4
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 938 if (ch_chr >= 'A' && ch_chr <= 'Z')
1739 938 s->has_channel |= M(ch_chr);
1740 938 av_log(s->avctx, AV_LOG_DEBUG, "%c\n", ch_chr);
1741 }
1742
1743
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 1926 if (!av_strcasecmp(ch_gb.buffer, "R") ||
1744
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 1672 !av_strcasecmp(ch_gb.buffer, "X") ||
1745 836 !av_strcasecmp(ch_gb.buffer, "U")) {
1746 254 channel_index = 0;
1747
3/4
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✓ Branch 4 taken 582 times.
 1418 } else if (!av_strcasecmp(ch_gb.buffer, "G") ||
1748 582 !av_strcasecmp(ch_gb.buffer, "V")) {
1749 254 channel_index = 1;
1750
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 582 } else if (!av_strcasecmp(ch_gb.buffer, "Y")) {
1751 62 channel_index = 1;
1752
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✓ Branch 3 taken 266 times.
✗ Branch 4 not taken.
 786 } else if (!av_strcasecmp(ch_gb.buffer, "B") ||
1753
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 532 !av_strcasecmp(ch_gb.buffer, "Z") ||
1754 266 !av_strcasecmp(ch_gb.buffer, "W")) {
1755 254 channel_index = 2;
1756
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 266 } else if (!av_strcasecmp(ch_gb.buffer, "A")) {
1757 114 channel_index = 3;
1758 } else {
1759 152 av_log(s->avctx, AV_LOG_WARNING,
1760 "Unsupported channel %.256s.\n", ch_gb.buffer);
1761 }
1762 }
1763
1764 /* skip until you get a 0 */
1765
3/4
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✓ Branch 3 taken 3644 times.
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 9712 while (bytestream2_get_bytes_left(&ch_gb) > 0 &&
1766 4856 bytestream2_get_byte(&ch_gb))
1767 3644 continue;
1768
1769
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 1212 if (bytestream2_get_bytes_left(&ch_gb) < 4) {
1770 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header.\n");
1771 ✗ ret = AVERROR_INVALIDDATA;
1772 ✗ goto fail;
1773 }
1774
1775 1212 current_pixel_type = bytestream2_get_le32(&ch_gb);
1776
1/2
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✓ Branch 1 taken 1212 times.
 1212 if (current_pixel_type >= EXR_UNKNOWN) {
1777 ✗ avpriv_report_missing_feature(s->avctx, "Pixel type %d",
1778 current_pixel_type);
1779 ✗ ret = AVERROR_PATCHWELCOME;
1780 ✗ goto fail;
1781 }
1782
1783 1212 bytestream2_skip(&ch_gb, 4);
1784 1212 xsub = bytestream2_get_le32(&ch_gb);
1785 1212 ysub = bytestream2_get_le32(&ch_gb);
1786
1787
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 1212 if (xsub != 1 || ysub != 1) {
1788 ✗ avpriv_report_missing_feature(s->avctx,
1789 "Subsampling %dx%d",
1790 xsub, ysub);
1791 ✗ ret = AVERROR_PATCHWELCOME;
1792 ✗ goto fail;
1793 }
1794
1795
3/4
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 1212 if (channel_index >= 0 && s->channel_offsets[channel_index] == -1) { /* channel has not been previously assigned */
1796
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 938 if (s->pixel_type != EXR_UNKNOWN &&
1797
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 622 s->pixel_type != current_pixel_type) {
1798 ✗ av_log(s->avctx, AV_LOG_ERROR,
1799 "RGB channels not of the same depth.\n");
1800 ✗ ret = AVERROR_INVALIDDATA;
1801 ✗ goto fail;
1802 }
1803 938 s->pixel_type = current_pixel_type;
1804 938 s->channel_offsets[channel_index] = s->current_channel_offset;
1805
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 274 } else if (channel_index >= 0) {
1806 ✗ av_log(s->avctx, AV_LOG_WARNING,
1807 "Multiple channels with index %d.\n", channel_index);
1808 ✗ if (++dup_channels > 10) {
1809 ✗ ret = AVERROR_INVALIDDATA;
1810 ✗ goto fail;
1811 }
1812 }
1813
1814
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 1212 av_assert0(s->nb_channels < INT_MAX); // Impossible due to size of the bitstream
1815 1212 EXRChannel *new_channels = av_realloc_array(s->channels,
1816 1212 s->nb_channels + 1,
1817 sizeof(EXRChannel));
1818
1/2
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 1212 if (!new_channels) {
1819 ✗ ret = AVERROR(ENOMEM);
1820 ✗ goto fail;
1821 }
1822 1212 s->nb_channels ++;
1823 1212 s->channels = new_channels;
1824
1825 1212 channel = &s->channels[s->nb_channels - 1];
1826 1212 channel->pixel_type = current_pixel_type;
1827 1212 channel->xsub = xsub;
1828 1212 channel->ysub = ysub;
1829
1830
2/2
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✓ Branch 1 taken 808 times.
 1212 if (current_pixel_type == EXR_HALF) {
1831 404 s->current_channel_offset += 2;
1832 } else {/* Float or UINT32 */
1833 808 s->current_channel_offset += 4;
1834 }
1835 }
1836
2/2
✓ Branch 0 taken 254 times.
✓ Branch 1 taken 62 times.
 316 if (!((M('R') + M('G') + M('B')) & ~s->has_channel)) {
1837 254 s->is_luma = 0;
1838
1/2
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✓ Branch 1 taken 62 times.
 62 } else if (!((M('X') + M('Y') + M('Z')) & ~s->has_channel)) {
1839 ✗ s->is_luma = 0;
1840
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 62 times.
 62 } else if (!((M('Y') + M('U') + M('V')) & ~s->has_channel)) {
1841 ✗ s->is_luma = 0;
1842
1/2
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✗ Branch 1 not taken.
 62 } else if (!((M('Y') ) & ~s->has_channel) &&
1843
1/2
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✗ Branch 1 not taken.
 62 !((M('R') + M('G') + M('B') + M('U') + M('V') + M('X') + M('Z')) & s->has_channel)) {
1844 62 s->is_luma = 1;
1845 } else {
1846 ✗ avpriv_request_sample(s->avctx, "Uncommon channel combination");
1847 ✗ ret = AVERROR_PATCHWELCOME;
1848 ✗ goto fail;
1849 }
1850
1851 /* Check if all channels are set with an offset or if the channels
1852 * are causing an overflow */
1853
2/2
✓ Branch 0 taken 254 times.
✓ Branch 1 taken 62 times.
 316 if (!s->is_luma) {/* if we expected to have at least 3 channels */
1854
1/2
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✓ Branch 1 taken 254 times.
 254 if (FFMIN3(s->channel_offsets[0],
1855 s->channel_offsets[1],
1856 s->channel_offsets[2]) < 0) {
1857 ✗ if (s->channel_offsets[0] < 0)
1858 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing red channel.\n");
1859 ✗ if (s->channel_offsets[1] < 0)
1860 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing green channel.\n");
1861 ✗ if (s->channel_offsets[2] < 0)
1862 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing blue channel.\n");
1863 ✗ ret = AVERROR_INVALIDDATA;
1864 ✗ goto fail;
1865 }
1866 }
1867
1868 // skip one last byte and update main gb
1869 316 gb->buffer = ch_gb.buffer + 1;
1870 316 continue;
1871
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3448 times.
 3764 } else if ((var_size = check_header_variable(s, "dataWindow", "box2i",
1872 316 31)) >= 0) {
1873 int xmin, ymin, xmax, ymax;
1874
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1875 ✗ ret = AVERROR_INVALIDDATA;
1876 ✗ goto fail;
1877 }
1878
1879 316 xmin = bytestream2_get_le32(gb);
1880 316 ymin = bytestream2_get_le32(gb);
1881 316 xmax = bytestream2_get_le32(gb);
1882 316 ymax = bytestream2_get_le32(gb);
1883
1884
3/6
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✗ Branch 3 not taken.
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✗ Branch 5 not taken.
 316 if (xmin > xmax || ymin > ymax ||
1885
1/2
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✗ Branch 1 not taken.
 316 ymax == INT_MAX || xmax == INT_MAX ||
1886
1/2
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✗ Branch 1 not taken.
 316 (unsigned)xmax - xmin >= INT_MAX ||
1887
1/2
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✓ Branch 1 taken 316 times.
 316 (unsigned)ymax - ymin >= INT_MAX) {
1888 ✗ ret = AVERROR_INVALIDDATA;
1889 ✗ goto fail;
1890 }
1891 316 s->xmin = xmin;
1892 316 s->xmax = xmax;
1893 316 s->ymin = ymin;
1894 316 s->ymax = ymax;
1895 316 s->xdelta = (s->xmax - s->xmin) + 1;
1896 316 s->ydelta = (s->ymax - s->ymin) + 1;
1897
1898 316 continue;
1899
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3132 times.
 3448 } else if ((var_size = check_header_variable(s, "displayWindow",
1900 316 "box2i", 34)) >= 0) {
1901 int32_t sx, sy, dx, dy;
1902
1903
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1904 ✗ ret = AVERROR_INVALIDDATA;
1905 ✗ goto fail;
1906 }
1907
1908 316 sx = bytestream2_get_le32(gb);
1909 316 sy = bytestream2_get_le32(gb);
1910 316 dx = bytestream2_get_le32(gb);
1911 316 dy = bytestream2_get_le32(gb);
1912
1913 316 s->w = (unsigned)dx - sx + 1;
1914 316 s->h = (unsigned)dy - sy + 1;
1915
1916 316 continue;
1917
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 2816 times.
 3132 } else if ((var_size = check_header_variable(s, "lineOrder",
1918 316 "lineOrder", 25)) >= 0) {
1919 int line_order;
1920
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1921 ✗ ret = AVERROR_INVALIDDATA;
1922 ✗ goto fail;
1923 }
1924
1925 316 line_order = bytestream2_get_byte(gb);
1926 316 av_log(s->avctx, AV_LOG_DEBUG, "line order: %d.\n", line_order);
1927
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (line_order > 2) {
1928 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown line order.\n");
1929 ✗ ret = AVERROR_INVALIDDATA;
1930 ✗ goto fail;
1931 }
1932
1933 316 continue;
1934
2/2
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✓ Branch 2 taken 2668 times.
 2816 } else if ((var_size = check_header_variable(s, "pixelAspectRatio",
1935 "float", 31)) >= 0) {
1936
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 148 times.
 148 if (!var_size) {
1937 ✗ ret = AVERROR_INVALIDDATA;
1938 ✗ goto fail;
1939 }
1940
1941 148 s->sar = bytestream2_get_le32(gb);
1942
1943 148 continue;
1944
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 2352 times.
 2668 } else if ((var_size = check_header_variable(s, "compression",
1945 "compression", 29)) >= 0) {
1946
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1947 ✗ ret = AVERROR_INVALIDDATA;
1948 ✗ goto fail;
1949 }
1950
1951
1/2
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
 316 if (s->compression == EXR_UNKN)
1952 316 s->compression = bytestream2_get_byte(gb);
1953 else {
1954 ✗ bytestream2_skip(gb, 1);
1955 ✗ av_log(s->avctx, AV_LOG_WARNING,
1956 "Found more than one compression attribute.\n");
1957 }
1958
1959 316 continue;
1960
2/2
✓ Branch 1 taken 44 times.
✓ Branch 2 taken 2308 times.
 2352 } else if ((var_size = check_header_variable(s, "tiles",
1961 44 "tiledesc", 22)) >= 0) {
1962 uint8_t tileLevel;
1963
1964
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (!s->is_tile)
1965 ✗ av_log(s->avctx, AV_LOG_WARNING,
1966 "Found tile attribute and scanline flags. Exr will be interpreted as scanline.\n");
1967
1968 44 s->tile_attr.xSize = bytestream2_get_le32(gb);
1969 44 s->tile_attr.ySize = bytestream2_get_le32(gb);
1970
1971 44 tileLevel = bytestream2_get_byte(gb);
1972 44 s->tile_attr.level_mode = tileLevel & 0x0f;
1973 44 s->tile_attr.level_round = (tileLevel >> 4) & 0x0f;
1974
1975
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_mode >= EXR_TILE_LEVEL_UNKNOWN) {
1976 ✗ avpriv_report_missing_feature(s->avctx, "Tile level mode %d",
1977 ✗ s->tile_attr.level_mode);
1978 ✗ ret = AVERROR_PATCHWELCOME;
1979 ✗ goto fail;
1980 }
1981
1982
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_round >= EXR_TILE_ROUND_UNKNOWN) {
1983 ✗ avpriv_report_missing_feature(s->avctx, "Tile level round %d",
1984 ✗ s->tile_attr.level_round);
1985 ✗ ret = AVERROR_PATCHWELCOME;
1986 ✗ goto fail;
1987 }
1988
1989 44 continue;
1990
2/2
✓ Branch 1 taken 184 times.
✓ Branch 2 taken 2124 times.
 2308 } else if ((var_size = check_header_variable(s, "writer",
1991 184 "string", 1)) >= 0) {
1992 184 uint8_t key[256] = { 0 };
1993
1994 184 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
1995 184 av_dict_set(&metadata, "writer", key, 0);
1996
1997 184 continue;
1998
2/2
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✓ Branch 2 taken 1940 times.
 2124 } else if ((var_size = check_header_variable(s, "framesPerSecond",
1999 "rational", 33)) >= 0) {
2000
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 184 times.
 184 if (!var_size) {
2001 ✗ ret = AVERROR_INVALIDDATA;
2002 ✗ goto fail;
2003 }
2004
2005 184 s->avctx->framerate.num = bytestream2_get_le32(gb);
2006 184 s->avctx->framerate.den = bytestream2_get_le32(gb);
2007
2008 184 continue;
2009
2/2
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 1932 times.
 1940 } else if ((var_size = check_header_variable(s, "chunkCount",
2010 "int", 23)) >= 0) {
2011
2012 8 s->chunk_count = bytestream2_get_le32(gb);
2013
2014 8 continue;
2015
2/2
✓ Branch 1 taken 18 times.
✓ Branch 2 taken 1914 times.
 1932 } else if ((var_size = check_header_variable(s, "type",
2016 18 "string", 16)) >= 0) {
2017 18 uint8_t key[256] = { 0 };
2018
2019 18 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
2020
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 10 times.
 18 if (strncmp("scanlineimage", key, var_size) &&
2021
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
 8 strncmp("tiledimage", key, var_size)) {
2022 ✗ ret = AVERROR_PATCHWELCOME;
2023 ✗ goto fail;
2024 }
2025
2026 18 continue;
2027
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 } else if ((var_size = check_header_variable(s, "preview",
2028 ✗ "preview", 16)) >= 0) {
2029 ✗ uint32_t pw = bytestream2_get_le32(gb);
2030 ✗ uint32_t ph = bytestream2_get_le32(gb);
2031 ✗ uint64_t psize = pw * (uint64_t)ph;
2032 ✗ if (psize > INT64_MAX / 4) {
2033 ✗ ret = AVERROR_INVALIDDATA;
2034 ✗ goto fail;
2035 }
2036 ✗ psize *= 4;
2037
2038 ✗ if ((int64_t)psize >= bytestream2_get_bytes_left(gb)) {
2039 ✗ ret = AVERROR_INVALIDDATA;
2040 ✗ goto fail;
2041 }
2042
2043 ✗ bytestream2_skip(gb, psize);
2044
2045 ✗ continue;
2046 }
2047
2048 // Check if there are enough bytes for a header
2049
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 if (bytestream2_get_bytes_left(gb) <= 9) {
2050 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header\n");
2051 ✗ ret = AVERROR_INVALIDDATA;
2052 ✗ goto fail;
2053 }
2054
2055 // Process unknown variables
2056 {
2057 1914 uint8_t name[256] = { 0 };
2058 1914 uint8_t type[256] = { 0 };
2059 1914 uint8_t value[8192] = { 0 };
2060 1914 int i = 0, size;
2061
2062
2/2
✓ Branch 1 taken 26926 times.
✓ Branch 2 taken 1914 times.
 57680 while (bytestream2_get_bytes_left(gb) > 0 &&
2063
2/4
✓ Branch 0 taken 28840 times.
✗ Branch 1 not taken.
✓ Branch 3 taken 26926 times.
✗ Branch 4 not taken.
 55766 bytestream2_peek_byte(gb) && i < 255) {
2064 26926 name[i++] = bytestream2_get_byte(gb);
2065 }
2066
2067 1914 bytestream2_skip(gb, 1);
2068 1914 i = 0;
2069
2/2
✓ Branch 1 taken 8774 times.
✓ Branch 2 taken 1914 times.
 21376 while (bytestream2_get_bytes_left(gb) > 0 &&
2070
2/4
✓ Branch 0 taken 10688 times.
✗ Branch 1 not taken.
✓ Branch 3 taken 8774 times.
✗ Branch 4 not taken.
 19462 bytestream2_peek_byte(gb) && i < 255) {
2071 8774 type[i++] = bytestream2_get_byte(gb);
2072 }
2073 1914 bytestream2_skip(gb, 1);
2074 1914 size = bytestream2_get_le32(gb);
2075
2076 1914 bytestream2_get_buffer(gb, value, FFMIN(sizeof(value) - 1, size));
2077
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1914 times.
 1914 if (size > sizeof(value) - 1)
2078 ✗ bytestream2_skip(gb, size - (sizeof(value) - 1));
2079
2/2
✓ Branch 0 taken 160 times.
✓ Branch 1 taken 1754 times.
 1914 if (!strcmp(type, "string"))
2080 160 av_dict_set(&metadata, name, value, 0);
2081 }
2082 }
2083
2084
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (s->compression == EXR_UNKN) {
2085 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing compression attribute.\n");
2086 ✗ ret = AVERROR_INVALIDDATA;
2087 ✗ goto fail;
2088 }
2089
2090
2/2
✓ Branch 0 taken 44 times.
✓ Branch 1 taken 272 times.
 316 if (s->is_tile) {
2091
2/4
✓ Branch 0 taken 44 times.
✗ 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) {
2092 ✗ av_log(s->avctx, AV_LOG_ERROR, "Invalid tile attribute.\n");
2093 ✗ ret = AVERROR_INVALIDDATA;
2094 ✗ goto fail;
2095 }
2096 }
2097
2098
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) <= 0) {
2099 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete frame.\n");
2100 ✗ ret = AVERROR_INVALIDDATA;
2101 ✗ goto fail;
2102 }
2103
2104 316 frame->metadata = metadata;
2105
2106 // aaand we are done
2107 316 bytestream2_skip(gb, 1);
2108 316 return 0;
2109 ✗ fail:
2110 ✗ av_dict_free(&metadata);
2111 ✗ return ret;
2112 }
2113
2114 316 static int decode_frame(AVCodecContext *avctx, AVFrame *picture,
2115 int *got_frame, AVPacket *avpkt)
2116 {
2117 316 EXRContext *s = avctx->priv_data;
2118 316 GetByteContext *gb = &s->gb;
2119 uint8_t *ptr;
2120
2121 int i, y, ret, ymax;
2122 int planes;
2123 int out_line_size;
2124 int nb_blocks; /* nb scanline or nb tile */
2125 uint64_t start_offset_table;
2126 uint64_t start_next_scanline;
2127
2128 316 bytestream2_init(gb, avpkt->data, avpkt->size);
2129
2130
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = decode_header(s, picture)) < 0)
2131 ✗ return ret;
2132
2133
1/2
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
 316 if (s->compression == EXR_DWAA ||
2134
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 s->compression == EXR_DWAB) {
2135 ✗ for (int i = 0; i<s->nb_channels; i++) {
2136 ✗ EXRChannel *channel = &s->channels[i];
2137 ✗ if (channel->pixel_type != s->pixel_type) {
2138 ✗ avpriv_request_sample(s->avctx, "mixed pixel type DWA");
2139 ✗ return AVERROR_PATCHWELCOME;
2140 }
2141 }
2142 }
2143
2144
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) {
2145 88 case EXR_HALF:
2146
2/2
✓ Branch 0 taken 26 times.
✓ Branch 1 taken 62 times.
 88 if (s->channel_offsets[3] >= 0) {
2147
2/2
✓ Branch 0 taken 24 times.
✓ Branch 1 taken 2 times.
 26 if (!s->is_luma) {
2148 24 avctx->pix_fmt = AV_PIX_FMT_GBRAPF16;
2149 } else {
2150 2 avctx->pix_fmt = AV_PIX_FMT_YAF16;
2151 }
2152 } else {
2153
2/2
✓ Branch 0 taken 58 times.
✓ Branch 1 taken 4 times.
 62 if (!s->is_luma) {
2154 58 avctx->pix_fmt = AV_PIX_FMT_GBRPF16;
2155 } else {
2156 4 avctx->pix_fmt = AV_PIX_FMT_GRAYF16;
2157 }
2158 }
2159 88 break;
2160 218 case EXR_FLOAT:
2161
2/2
✓ Branch 0 taken 88 times.
✓ Branch 1 taken 130 times.
 218 if (s->channel_offsets[3] >= 0) {
2162
1/2
✓ Branch 0 taken 88 times.
✗ Branch 1 not taken.
 88 if (!s->is_luma) {
2163 88 avctx->pix_fmt = AV_PIX_FMT_GBRAPF32;
2164 } else {
2165 ✗ avctx->pix_fmt = AV_PIX_FMT_YAF32;
2166 }
2167 } else {
2168
2/2
✓ Branch 0 taken 74 times.
✓ Branch 1 taken 56 times.
 130 if (!s->is_luma) {
2169 74 avctx->pix_fmt = AV_PIX_FMT_GBRPF32;
2170 } else {
2171 56 avctx->pix_fmt = AV_PIX_FMT_GRAYF32;
2172 }
2173 }
2174 218 break;
2175 10 case EXR_UINT:
2176
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
 10 if (s->channel_offsets[3] >= 0) {
2177 ✗ if (!s->is_luma) {
2178 ✗ avctx->pix_fmt = AV_PIX_FMT_RGBA64;
2179 } else {
2180 ✗ avctx->pix_fmt = AV_PIX_FMT_YA16;
2181 }
2182 } else {
2183
1/2
✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
 10 if (!s->is_luma) {
2184 10 avctx->pix_fmt = AV_PIX_FMT_RGB48;
2185 } else {
2186 ✗ avctx->pix_fmt = AV_PIX_FMT_GRAY16;
2187 }
2188 }
2189 10 break;
2190 ✗ default:
2191 ✗ av_log(avctx, AV_LOG_ERROR, "Missing channel list.\n");
2192 ✗ return AVERROR_INVALIDDATA;
2193 }
2194
2195
2/2
✓ Branch 0 taken 114 times.
✓ Branch 1 taken 202 times.
 316 if (s->channel_offsets[3] >= 0)
2196 114 avctx->alpha_mode = AVALPHA_MODE_PREMULTIPLIED;
2197
2198 #if FF_API_EXR_GAMMA
2199
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (s->apply_trc_type != AVCOL_TRC_UNSPECIFIED)
2200 ✗ avctx->color_trc = s->apply_trc_type;
2201
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)
2202 #endif
2203 316 avctx->color_trc = AVCOL_TRC_LINEAR;
2204
2205
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) {
2206 174 case EXR_RAW:
2207 case EXR_RLE:
2208 case EXR_ZIP1:
2209 174 s->scan_lines_per_block = 1;
2210 174 break;
2211 92 case EXR_PXR24:
2212 case EXR_ZIP16:
2213 92 s->scan_lines_per_block = 16;
2214 92 break;
2215 50 case EXR_PIZ:
2216 case EXR_B44:
2217 case EXR_B44A:
2218 case EXR_DWAA:
2219 50 s->scan_lines_per_block = 32;
2220 50 break;
2221 ✗ case EXR_DWAB:
2222 ✗ s->scan_lines_per_block = 256;
2223 ✗ break;
2224 ✗ default:
2225 ✗ avpriv_report_missing_feature(avctx, "Compression %d", s->compression);
2226 ✗ return AVERROR_PATCHWELCOME;
2227 }
2228
2229 /* Verify the xmin, xmax, ymin and ymax before setting the actual image size.
2230 * It's possible for the data window can larger or outside the display window */
2231
2/4
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
✗ Branch 3 not taken.
 316 if (s->xmin > s->xmax || s->ymin > s->ymax ||
2232
2/4
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 316 times.
 316 s->ydelta == 0xFFFFFFFF || s->xdelta == 0xFFFFFFFF) {
2233 ✗ av_log(avctx, AV_LOG_ERROR, "Wrong or missing size information.\n");
2234 ✗ return AVERROR_INVALIDDATA;
2235 }
2236
2237
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = ff_set_dimensions(avctx, s->w, s->h)) < 0)
2238 ✗ return ret;
2239
2240 316 ff_set_sar(s->avctx, av_d2q(av_int2float(s->sar), 255));
2241
2242
2/2
✓ Branch 0 taken 86 times.
✓ Branch 1 taken 230 times.
 316 if (avctx->skip_frame >= AVDISCARD_ALL)
2243 86 return avpkt->size;
2244
2245 230 s->desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2246
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 230 times.
 230 if (!s->desc)
2247 ✗ return AVERROR_INVALIDDATA;
2248
2249 230 planes = av_pix_fmt_count_planes(avctx->pix_fmt);
2250 230 out_line_size = avctx->width * s->desc->comp[0].step;
2251
2252
2/2
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 208 times.
 230 if (s->is_tile) {
2253
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 22 times.
 22 if (s->tile_attr.ySize <= 0 || s->tile_attr.xSize <= 0)
2254 ✗ return AVERROR_INVALIDDATA;
2255 22 nb_blocks = ((s->xdelta + s->tile_attr.xSize - 1) / s->tile_attr.xSize) *
2256 22 ((s->ydelta + s->tile_attr.ySize - 1) / s->tile_attr.ySize);
2257 } else { /* scanline */
2258 208 nb_blocks = (s->ydelta + s->scan_lines_per_block - 1) /
2259 208 s->scan_lines_per_block;
2260 }
2261
2262
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 230 if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
2263 ✗ return ret;
2264
2265
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 230 if (bytestream2_get_bytes_left(gb)/8 < nb_blocks)
2266 ✗ return AVERROR_INVALIDDATA;
2267
2268 // check offset table and recreate it if need
2269
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 230 if (!s->is_tile && bytestream2_peek_le64(gb) == 0) {
2270 PutByteContext offset_table_writer;
2271
2272 1 av_log(s->avctx, AV_LOG_DEBUG, "recreating invalid scanline offset table\n");
2273
2274 1 s->offset_table = av_realloc_f(s->offset_table, nb_blocks, 8);
2275
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 1 if (!s->offset_table)
2276 ✗ return AVERROR(ENOMEM);
2277
2278 1 start_offset_table = bytestream2_tell(gb);
2279 1 start_next_scanline = start_offset_table + nb_blocks * 8;
2280 1 bytestream2_init_writer(&offset_table_writer, s->offset_table, nb_blocks * 8);
2281
2282
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 9 for (y = 0; y < nb_blocks; y++) {
2283 /* write offset of prev scanline in offset table */
2284 8 bytestream2_put_le64(&offset_table_writer, start_next_scanline);
2285
2286 /* get len of next scanline */
2287 8 bytestream2_seek(gb, start_next_scanline + 4, SEEK_SET);/* skip line number */
2288 8 start_next_scanline += (bytestream2_get_le32(gb) + 8);
2289 }
2290 1 bytestream2_init(gb, s->offset_table, nb_blocks * 8);
2291 }
2292
2293 // save pointer we are going to use in decode_block
2294 230 s->buf = avpkt->data;
2295 230 s->buf_size = avpkt->size;
2296
2297 // Zero out the start if ymin is not 0
2298
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 880 for (i = 0; i < planes; i++) {
2299 650 ptr = picture->data[i];
2300
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 890 for (y = 0; y < FFMIN(s->ymin, s->h); y++) {
2301 240 memset(ptr, 0, out_line_size);
2302 240 ptr += picture->linesize[i];
2303 }
2304 }
2305
2306 230 s->picture = picture;
2307
2308 230 avctx->execute2(avctx, decode_block, s->thread_data, NULL, nb_blocks);
2309
2310 230 ymax = FFMAX(0, s->ymax + 1);
2311 // Zero out the end if ymax+1 is not h
2312
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 230 if (ymax < avctx->height)
2313
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 16 for (i = 0; i < planes; i++) {
2314 12 ptr = picture->data[i] + (ymax * picture->linesize[i]);
2315
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 2784 for (y = ymax; y < avctx->height; y++) {
2316 2772 memset(ptr, 0, out_line_size);
2317 2772 ptr += picture->linesize[i];
2318 }
2319 }
2320
2321 230 picture->pict_type = AV_PICTURE_TYPE_I;
2322 230 *got_frame = 1;
2323
2324 230 return avpkt->size;
2325 }
2326
2327 172 static av_cold int decode_init(AVCodecContext *avctx)
2328 {
2329 172 EXRContext *s = avctx->priv_data;
2330 #if FF_API_EXR_GAMMA
2331 uint32_t i;
2332 union av_intfloat32 t;
2333 172 float one_gamma = 1.0f / s->gamma;
2334 172 av_csp_trc_function trc_func = NULL;
2335 #endif
2336
2337 172 ff_init_float2half_tables(&s->f2h_tables);
2338 172 ff_init_half2float_tables(&s->h2f_tables);
2339
2340 172 s->avctx = avctx;
2341
2342 172 ff_exrdsp_init(&s->dsp);
2343
2344 #if HAVE_BIGENDIAN
2345 ff_bswapdsp_init(&s->bbdsp);
2346 #endif
2347
2348 #if FF_API_EXR_GAMMA
2349 172 trc_func = av_csp_trc_func_from_id(s->apply_trc_type);
2350
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 172 if (trc_func) {
2351 ✗ for (i = 0; i < 65536; ++i) {
2352 ✗ t.i = half2float(i, &s->h2f_tables);
2353 ✗ t.f = trc_func(t.f);
2354 ✗ s->gamma_table[i] = float2half(av_float2int(t.f), &s->f2h_tables);
2355 }
2356
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 172 } else if (one_gamma != 1.0f) {
2357 ✗ for (i = 0; i < 65536; ++i) {
2358 ✗ t.i = half2float(i, &s->h2f_tables);
2359 /* If negative value we reuse half value */
2360 ✗ if (t.f <= 0.0f) {
2361 ✗ s->gamma_table[i] = i;
2362 } else {
2363 ✗ t.f = powf(t.f, one_gamma);
2364 ✗ s->gamma_table[i] = float2half(t.i, &s->f2h_tables);
2365 }
2366 }
2367 }
2368 #endif
2369
2370 // allocate thread data, used for non EXR_RAW compression types
2371 172 s->thread_data = av_calloc(avctx->thread_count, sizeof(*s->thread_data));
2372
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 172 if (!s->thread_data)
2373 ✗ return AVERROR(ENOMEM);
2374
2375 172 return 0;
2376 }
2377
2378 172 static av_cold int decode_end(AVCodecContext *avctx)
2379 {
2380 172 EXRContext *s = avctx->priv_data;
2381 int i;
2382
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 344 for (i = 0; i < avctx->thread_count; i++) {
2383 172 EXRThreadData *td = &s->thread_data[i];
2384 172 av_freep(&td->uncompressed_data);
2385 172 av_freep(&td->tmp);
2386 172 av_freep(&td->bitmap);
2387 172 av_freep(&td->lut);
2388 172 av_freep(&td->he);
2389 172 av_freep(&td->freq);
2390 172 av_freep(&td->ac_data);
2391 172 av_freep(&td->dc_data);
2392 172 av_freep(&td->rle_data);
2393 172 av_freep(&td->rle_raw_data);
2394 172 ff_vlc_free(&td->vlc);
2395 }
2396
2397 172 av_freep(&s->thread_data);
2398 172 av_freep(&s->channels);
2399 172 av_freep(&s->offset_table);
2400
2401 172 return 0;
2402 }
2403
2404 #define OFFSET(x) offsetof(EXRContext, x)
2405 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
2406 static const AVOption options[] = {
2407 { "layer", "Set the decoding layer", OFFSET(layer),
2408 AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
2409 { "part", "Set the decoding part", OFFSET(selected_part),
2410 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
2411 #if FF_API_EXR_GAMMA
2412 { "gamma", "Set the float gamma value when decoding (deprecated, use a scaler)", OFFSET(gamma),
2413 AV_OPT_TYPE_FLOAT, { .dbl = 1.0f }, 0.001, FLT_MAX, VD | AV_OPT_FLAG_DEPRECATED },
2414
2415 // XXX: Note the abuse of the enum using AVCOL_TRC_UNSPECIFIED to subsume the existing gamma option
2416 { "apply_trc", "color transfer characteristics to apply to EXR linear input (deprecated, use a scaler)", OFFSET(apply_trc_type),
2417 AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, VD | AV_OPT_FLAG_DEPRECATED, .unit = "apply_trc_type"},
2418 { "bt709", "BT.709", 0,
2419 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2420 { "gamma", "gamma", 0,
2421 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2422 { "gamma22", "BT.470 M", 0,
2423 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2424 { "gamma28", "BT.470 BG", 0,
2425 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2426 { "smpte170m", "SMPTE 170 M", 0,
2427 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2428 { "smpte240m", "SMPTE 240 M", 0,
2429 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2430 { "linear", "Linear", 0,
2431 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2432 { "log", "Log", 0,
2433 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2434 { "log_sqrt", "Log square root", 0,
2435 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2436 { "iec61966_2_4", "IEC 61966-2-4", 0,
2437 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2438 { "bt1361", "BT.1361", 0,
2439 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2440 { "iec61966_2_1", "IEC 61966-2-1", 0,
2441 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2442 { "bt2020_10bit", "BT.2020 - 10 bit", 0,
2443 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2444 { "bt2020_12bit", "BT.2020 - 12 bit", 0,
2445 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2446 { "smpte2084", "SMPTE ST 2084", 0,
2447 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTEST2084 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2448 { "smpte428_1", "SMPTE ST 428-1", 0,
2449 AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTEST428_1 }, INT_MIN, INT_MAX, VD, .unit = "apply_trc_type"},
2450 #endif
2451
2452 { NULL },
2453 };
2454
2455 static const AVClass exr_class = {
2456 .class_name = "EXR",
2457 .item_name = av_default_item_name,
2458 .option = options,
2459 .version = LIBAVUTIL_VERSION_INT,
2460 };
2461
2462 const FFCodec ff_exr_decoder = {
2463 .p.name = "exr",
2464 CODEC_LONG_NAME("OpenEXR image"),
2465 .p.type = AVMEDIA_TYPE_VIDEO,
2466 .p.id = AV_CODEC_ID_EXR,
2467 .priv_data_size = sizeof(EXRContext),
2468 .init = decode_init,
2469 .close = decode_end,
2470 FF_CODEC_DECODE_CB(decode_frame),
2471 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
2472 AV_CODEC_CAP_SLICE_THREADS,
2473 .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2474 .p.priv_class = &exr_class,
2475 };
2476