FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/exr.c
Date: 2026-09-11 02:21:26
Exec Total Coverage
Lines: 867 1333 65.0%
Functions: 23 31 74.2%
Branches: 473 803 58.9%
Line Branch Exec Source
1 /*
2 * OpenEXR (.exr) image decoder
3 * Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
4 * Copyright (c) 2009 Jimmy Christensen
5 *
6 * B44/B44A, Tile, UINT32 added by Jokyo Images support by CNC - French National Center for Cinema
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file
27 * OpenEXR decoder
28 * @author Jimmy Christensen
29 *
30 * For more information on the OpenEXR format, visit:
31 * http://openexr.com/
32 */
33
34 #include <float.h>
35 #include <zlib.h>
36
37 #include "libavutil/avassert.h"
38 #include "libavutil/common.h"
39 #include "libavutil/imgutils.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/avstring.h"
42 #include "libavutil/mem.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/float2half.h"
45 #include "libavutil/half2float.h"
46
47 #include "avcodec.h"
48 #include "bytestream.h"
49
50 #if HAVE_BIGENDIAN
51 #include "bswapdsp.h"
52 #endif
53
54 #include "codec_internal.h"
55 #include "decode.h"
56 #include "exrdsp.h"
57 #include "get_bits.h"
58 #include "mathops.h"
59 #include "thread.h"
60
61 enum ExrCompr {
62 EXR_RAW,
63 EXR_RLE,
64 EXR_ZIP1,
65 EXR_ZIP16,
66 EXR_PIZ,
67 EXR_PXR24,
68 EXR_B44,
69 EXR_B44A,
70 EXR_DWAA,
71 EXR_DWAB,
72 EXR_UNKN,
73 };
74
75 enum ExrPixelType {
76 EXR_UINT,
77 EXR_HALF,
78 EXR_FLOAT,
79 EXR_UNKNOWN,
80 };
81
82 enum ExrTileLevelMode {
83 EXR_TILE_LEVEL_ONE,
84 EXR_TILE_LEVEL_MIPMAP,
85 EXR_TILE_LEVEL_RIPMAP,
86 EXR_TILE_LEVEL_UNKNOWN,
87 };
88
89 enum ExrTileLevelRound {
90 EXR_TILE_ROUND_UP,
91 EXR_TILE_ROUND_DOWN,
92 EXR_TILE_ROUND_UNKNOWN,
93 };
94
95 typedef struct HuffEntry {
96 uint8_t len;
97 uint16_t sym;
98 uint32_t code;
99 } HuffEntry;
100
101 typedef struct EXRChannel {
102 int xsub, ysub;
103 enum ExrPixelType pixel_type;
104 } EXRChannel;
105
106 typedef struct EXRTileAttribute {
107 int32_t xSize;
108 int32_t ySize;
109 enum ExrTileLevelMode level_mode;
110 enum ExrTileLevelRound level_round;
111 } EXRTileAttribute;
112
113 typedef struct EXRThreadData {
114 uint8_t *uncompressed_data;
115 int uncompressed_size;
116
117 uint8_t *tmp;
118 int tmp_size;
119
120 uint8_t *bitmap;
121 uint16_t *lut;
122
123 uint8_t *ac_data;
124 unsigned ac_size;
125
126 uint8_t *dc_data;
127 unsigned dc_size;
128
129 uint8_t *rle_data;
130 unsigned rle_size;
131
132 uint8_t *rle_raw_data;
133 unsigned rle_raw_size;
134
135 float block[3][64];
136
137 int ysize, xsize;
138
139 int channel_line_size;
140
141 int run_sym;
142 HuffEntry *he;
143 uint64_t *freq;
144 VLC vlc;
145 } EXRThreadData;
146
147 typedef struct EXRContext {
148 AVClass *class;
149 AVFrame *picture;
150 AVCodecContext *avctx;
151 ExrDSPContext dsp;
152
153 #if HAVE_BIGENDIAN
154 BswapDSPContext bbdsp;
155 #endif
156
157 enum ExrCompr compression;
158 enum ExrPixelType pixel_type;
159 int channel_offsets[4]; // 0 = red, 1 = green, 2 = blue and 3 = alpha
160 const AVPixFmtDescriptor *desc;
161
162 int w, h;
163 uint32_t sar;
164 int32_t xmax, xmin;
165 int32_t ymax, ymin;
166 uint32_t xdelta, ydelta;
167
168 int scan_lines_per_block;
169
170 EXRTileAttribute tile_attr; /* header data attribute of tile */
171 int is_tile; /* 0 if scanline, 1 if tile */
172 int is_multipart;
173 int current_part;
174
175 int is_luma;/* 1 if there is an Y plane */
176
177 #define M(chr) (1<<chr - 'A')
178 int has_channel; ///< combination of flags representing the channel codes A-Z
179
180 GetByteContext gb;
181 const uint8_t *buf;
182 int buf_size;
183
184 EXRChannel *channels;
185 int nb_channels;
186 int current_channel_offset;
187 uint32_t chunk_count;
188
189 EXRThreadData *thread_data;
190
191 const char *layer;
192 int selected_part;
193
194 uint8_t *offset_table;
195
196 Float2HalfTables f2h_tables;
197 Half2FloatTables h2f_tables;
198 } EXRContext;
199
200 12853 static int zip_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
201 int uncompressed_size, EXRThreadData *td)
202 {
203 12853 unsigned long dest_len = uncompressed_size;
204
205
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 12853 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK ||
206
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 12853 dest_len != uncompressed_size)
207 ✗ return AVERROR_INVALIDDATA;
208
209 av_assert1(uncompressed_size % 2 == 0);
210
211 12853 s->dsp.predictor(td->tmp, uncompressed_size);
212 12853 s->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
213
214 12853 return 0;
215 }
216
217 4848 static int rle(uint8_t *dst, const uint8_t *src,
218 int compressed_size, int uncompressed_size)
219 {
220 4848 uint8_t *d = dst;
221 4848 const int8_t *s = src;
222 4848 int ssize = compressed_size;
223 4848 int dsize = uncompressed_size;
224 4848 uint8_t *dend = d + dsize;
225 int count;
226
227
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 676771 while (ssize > 0) {
228 671923 count = *s++;
229
230
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 671923 if (count < 0) {
231 501696 count = -count;
232
233
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234
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 501696 (ssize -= count + 1) < 0)
235 ✗ return AVERROR_INVALIDDATA;
236
237
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 21708325 while (count--)
238 21206629 *d++ = *s++;
239 } else {
240 170227 count++;
241
242
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243
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244 ✗ return AVERROR_INVALIDDATA;
245
246
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 4913430 while (count--)
247 4743203 *d++ = *s;
248
249 170227 s++;
250 }
251 }
252
253
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 4848 if (dend != d)
254 ✗ return AVERROR_INVALIDDATA;
255
256 4848 return 0;
257 }
258
259 4848 static int rle_uncompress(const EXRContext *ctx, const uint8_t *src, int compressed_size,
260 int uncompressed_size, EXRThreadData *td)
261 {
262 4848 int ret = rle(td->tmp, src, compressed_size, uncompressed_size);
263
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 4848 if (ret < 0)
264 ✗ return ret;
265
266 av_assert1(uncompressed_size % 2 == 0);
267
268 4848 ctx->dsp.predictor(td->tmp, uncompressed_size);
269 4848 ctx->dsp.reorder_pixels(td->uncompressed_data, td->tmp, uncompressed_size);
270
271 4848 return 0;
272 }
273
274 #define USHORT_RANGE (1 << 16)
275 #define BITMAP_SIZE (1 << 13)
276
277 30 static uint16_t reverse_lut(const uint8_t *bitmap, uint16_t *lut)
278 {
279 30 int i, k = 0;
280
281
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282
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 1966080 if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7))))
283 15385 lut[k++] = i;
284
285 30 i = k - 1;
286
287 30 memset(lut + k, 0, (USHORT_RANGE - k) * 2);
288
289 30 return i;
290 }
291
292 30 static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
293 {
294 int i;
295
296
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 820752 for (i = 0; i < dsize; ++i)
297 820722 dst[i] = lut[dst[i]];
298 30 }
299
300 #define HUF_ENCBITS 16 // literal (value) bit length
301 #define HUF_ENCSIZE ((1 << HUF_ENCBITS) + 1) // encoding table size
302
303 30 static void huf_canonical_code_table(uint64_t *freq)
304 {
305 30 uint64_t c, n[59] = { 0 };
306 int i;
307
308
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 1966140 for (i = 0; i < HUF_ENCSIZE; i++)
309 1966110 n[freq[i]] += 1;
310
311 30 c = 0;
312
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 1770 for (i = 58; i > 0; --i) {
313 1740 uint64_t nc = ((c + n[i]) >> 1);
314 1740 n[i] = c;
315 1740 c = nc;
316 }
317
318
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 1966140 for (i = 0; i < HUF_ENCSIZE; ++i) {
319 1966110 int l = freq[i];
320
321
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 1966110 if (l > 0)
322 6417 freq[i] = l | (n[l]++ << 6);
323 }
324 30 }
325
326 #define SHORT_ZEROCODE_RUN 59
327 #define LONG_ZEROCODE_RUN 63
328 #define SHORTEST_LONG_RUN (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN)
329 #define LONGEST_LONG_RUN (255 + SHORTEST_LONG_RUN)
330
331 30 static int huf_unpack_enc_table(GetByteContext *gb,
332 int32_t im, int32_t iM, uint64_t *freq)
333 {
334 GetBitContext gbit;
335 30 int ret = init_get_bits8(&gbit, gb->buffer, bytestream2_get_bytes_left(gb));
336
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 30 if (ret < 0)
337 ✗ return ret;
338
339
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 16636 for (; im <= iM; im++) {
340 int l;
341
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 16606 if (get_bits_left(&gbit) < 6)
342 ✗ return AVERROR_INVALIDDATA;
343 16606 l = freq[im] = get_bits(&gbit, 6);
344
345
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 16606 if (l == LONG_ZEROCODE_RUN) {
346 8339 int zerun = get_bits(&gbit, 8) + SHORTEST_LONG_RUN;
347
348
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 8339 if (im + zerun > iM + 1)
349 ✗ return AVERROR_INVALIDDATA;
350
351
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 1963965 while (zerun--)
352 1955626 freq[im++] = 0;
353
354 8339 im--;
355
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 8267 } else if (l >= SHORT_ZEROCODE_RUN) {
356 1053 int zerun = l - SHORT_ZEROCODE_RUN + 2;
357
358
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 1053 if (im + zerun > iM + 1)
359 ✗ return AVERROR_INVALIDDATA;
360
361
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 4323 while (zerun--)
362 3270 freq[im++] = 0;
363
364 1053 im--;
365 }
366 }
367
368 30 bytestream2_skip(gb, (get_bits_count(&gbit) + 7) / 8);
369 30 huf_canonical_code_table(freq);
370
371 30 return 0;
372 }
373
374 30 static int huf_build_dec_table(const EXRContext *s,
375 EXRThreadData *td, int im, int iM)
376 {
377 30 int j = 0;
378
379 30 td->run_sym = -1;
380
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 1966110 for (int i = im; i < iM; i++) {
381 1966080 td->he[j].sym = i;
382 1966080 td->he[j].len = td->freq[i] & 63;
383 1966080 td->he[j].code = td->freq[i] >> 6;
384
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 1966080 if (td->he[j].len > 32) {
385 ✗ avpriv_request_sample(s->avctx, "Too big code length");
386 ✗ return AVERROR_PATCHWELCOME;
387 }
388
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 1966080 if (td->he[j].len > 0)
389 6387 j++;
390 else
391 1959693 td->run_sym = i;
392 }
393
394
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 30 if (im > 0)
395 ✗ td->run_sym = 0;
396
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 30 else if (iM < 65535)
397 ✗ td->run_sym = 65535;
398
399
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 30 if (td->run_sym == -1) {
400 ✗ avpriv_request_sample(s->avctx, "No place for run symbol");
401 ✗ return AVERROR_PATCHWELCOME;
402 }
403
404 30 td->he[j].sym = td->run_sym;
405 30 td->he[j].len = td->freq[iM] & 63;
406
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 30 if (td->he[j].len > 32) {
407 ✗ avpriv_request_sample(s->avctx, "Too big code length");
408 ✗ return AVERROR_PATCHWELCOME;
409 }
410 30 td->he[j].code = td->freq[iM] >> 6;
411 30 j++;
412
413 30 ff_vlc_free(&td->vlc);
414 30 return ff_vlc_init_sparse(&td->vlc, 12, j,
415 30 &td->he[0].len, sizeof(td->he[0]), sizeof(td->he[0].len),
416 30 &td->he[0].code, sizeof(td->he[0]), sizeof(td->he[0].code),
417 30 &td->he[0].sym, sizeof(td->he[0]), sizeof(td->he[0].sym), 0);
418 }
419
420 30 static int huf_decode(VLC *vlc, GetByteContext *gb, int nbits, int run_sym,
421 int no, uint16_t *out)
422 {
423 GetBitContext gbit;
424 30 int oe = 0;
425
426 30 init_get_bits(&gbit, gb->buffer, nbits);
427
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 213511 while (get_bits_left(&gbit) > 0 && oe < no) {
428 213481 uint16_t x = get_vlc2(&gbit, vlc->table, 12, 3);
429
430
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 213481 if (x == run_sym) {
431 3387 int run = get_bits(&gbit, 8);
432 uint16_t fill;
433
434
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 3387 if (oe == 0 || oe + run > no)
435 ✗ return AVERROR_INVALIDDATA;
436
437 3387 fill = out[oe - 1];
438
439
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 614015 while (run-- > 0)
440 610628 out[oe++] = fill;
441 } else {
442 210094 out[oe++] = x;
443 }
444 }
445
446 30 return 0;
447 }
448
449 30 static int huf_uncompress(const EXRContext *s,
450 EXRThreadData *td,
451 GetByteContext *gb,
452 uint16_t *dst, int dst_size)
453 {
454 int32_t im, iM;
455 uint32_t nBits;
456 int ret;
457
458 30 im = bytestream2_get_le32(gb);
459 30 iM = bytestream2_get_le32(gb);
460 30 bytestream2_skip(gb, 4);
461 30 nBits = bytestream2_get_le32(gb);
462
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 30 if (im < 0 || im >= HUF_ENCSIZE ||
463
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 30 iM < 0 || iM >= HUF_ENCSIZE)
464 ✗ return AVERROR_INVALIDDATA;
465
466 30 bytestream2_skip(gb, 4);
467
468
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 30 if (!td->freq)
469 7 td->freq = av_malloc_array(HUF_ENCSIZE, sizeof(*td->freq));
470
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 30 if (!td->he)
471 7 td->he = av_calloc(HUF_ENCSIZE, sizeof(*td->he));
472
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 30 if (!td->freq || !td->he) {
473 ✗ ret = AVERROR(ENOMEM);
474 ✗ return ret;
475 }
476
477 30 memset(td->freq, 0, sizeof(*td->freq) * HUF_ENCSIZE);
478
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 30 if ((ret = huf_unpack_enc_table(gb, im, iM, td->freq)) < 0)
479 ✗ return ret;
480
481
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 30 if (nBits > 8 * bytestream2_get_bytes_left(gb)) {
482 ✗ ret = AVERROR_INVALIDDATA;
483 ✗ return ret;
484 }
485
486
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 30 if ((ret = huf_build_dec_table(s, td, im, iM)) < 0)
487 ✗ return ret;
488 30 return huf_decode(&td->vlc, gb, nBits, td->run_sym, dst_size, dst);
489 }
490
491 1091709 static inline void wdec14(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
492 {
493 1091709 int16_t ls = l;
494 1091709 int16_t hs = h;
495 1091709 int hi = hs;
496 1091709 int ai = ls + (hi & 1) + (hi >> 1);
497 1091709 int16_t as = ai;
498 1091709 int16_t bs = ai - hi;
499
500 1091709 *a = as;
501 1091709 *b = bs;
502 1091709 }
503
504 #define NBITS 16
505 #define A_OFFSET (1 << (NBITS - 1))
506 #define MOD_MASK ((1 << NBITS) - 1)
507
508 ✗ static inline void wdec16(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
509 {
510 ✗ int m = l;
511 ✗ int d = h;
512 ✗ int bb = (m - (d >> 1)) & MOD_MASK;
513 ✗ int aa = (d + bb - A_OFFSET) & MOD_MASK;
514 ✗ *b = bb;
515 ✗ *a = aa;
516 ✗ }
517
518 102 static void wav_decode(uint16_t *in, int nx, int ox,
519 int ny, int oy, uint16_t mx)
520 {
521 102 int w14 = (mx < (1 << 14));
522 102 int n = (nx > ny) ? ny : nx;
523 102 int p = 1;
524 int p2;
525
526
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 693 while (p <= n)
527 591 p <<= 1;
528
529 102 p >>= 1;
530 102 p2 = p;
531 102 p >>= 1;
532
533
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 591 while (p >= 1) {
534 489 uint16_t *py = in;
535 489 uint16_t *ey = in + oy * (ny - p2);
536 uint16_t i00, i01, i10, i11;
537 489 int oy1 = oy * p;
538 489 int oy2 = oy * p2;
539 489 int ox1 = ox * p;
540 489 int ox2 = ox * p2;
541
542
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 3429 for (; py <= ey; py += oy2) {
543 2940 uint16_t *px = py;
544 2940 uint16_t *ex = py + ox * (nx - p2);
545
546
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 275691 for (; px <= ex; px += ox2) {
547 272751 uint16_t *p01 = px + ox1;
548 272751 uint16_t *p10 = px + oy1;
549 272751 uint16_t *p11 = p10 + ox1;
550
551
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 272751 if (w14) {
552 272751 wdec14(*px, *p10, &i00, &i10);
553 272751 wdec14(*p01, *p11, &i01, &i11);
554 272751 wdec14(i00, i01, px, p01);
555 272751 wdec14(i10, i11, p10, p11);
556 } else {
557 ✗ wdec16(*px, *p10, &i00, &i10);
558 ✗ wdec16(*p01, *p11, &i01, &i11);
559 ✗ wdec16(i00, i01, px, p01);
560 ✗ wdec16(i10, i11, p10, p11);
561 }
562 }
563
564
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 2940 if (nx & p) {
565 324 uint16_t *p10 = px + oy1;
566
567
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 324 if (w14)
568 324 wdec14(*px, *p10, &i00, p10);
569 else
570 ✗ wdec16(*px, *p10, &i00, p10);
571
572 324 *px = i00;
573 }
574 }
575
576
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 489 if (ny & p) {
577 15 uint16_t *px = py;
578 15 uint16_t *ex = py + ox * (nx - p2);
579
580
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 396 for (; px <= ex; px += ox2) {
581 381 uint16_t *p01 = px + ox1;
582
583
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 381 if (w14)
584 381 wdec14(*px, *p01, &i00, p01);
585 else
586 ✗ wdec16(*px, *p01, &i00, p01);
587
588 381 *px = i00;
589 }
590 }
591
592 489 p2 = p;
593 489 p >>= 1;
594 }
595 102 }
596
597 30 static int piz_uncompress(const EXRContext *s, const uint8_t *src, int ssize,
598 int dsize, EXRThreadData *td)
599 {
600 GetByteContext gb;
601 uint16_t maxval, min_non_zero, max_non_zero;
602 uint16_t *ptr;
603 30 uint16_t *tmp = (uint16_t *)td->tmp;
604 uint16_t *out;
605 uint16_t *in;
606 int ret, i, j;
607 int pixel_half_size;/* 1 for half, 2 for float and uint32 */
608 EXRChannel *channel;
609 int tmp_offset;
610
611
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 30 if (!td->bitmap)
612 7 td->bitmap = av_malloc(BITMAP_SIZE);
613
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 30 if (!td->lut)
614 7 td->lut = av_malloc(1 << 17);
615
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 30 if (!td->bitmap || !td->lut) {
616 ✗ av_freep(&td->bitmap);
617 ✗ av_freep(&td->lut);
618 ✗ return AVERROR(ENOMEM);
619 }
620
621 30 bytestream2_init(&gb, src, ssize);
622 30 min_non_zero = bytestream2_get_le16(&gb);
623 30 max_non_zero = bytestream2_get_le16(&gb);
624
625
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 30 if (max_non_zero >= BITMAP_SIZE)
626 ✗ return AVERROR_INVALIDDATA;
627
628 30 memset(td->bitmap, 0, FFMIN(min_non_zero, BITMAP_SIZE));
629
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 30 if (min_non_zero <= max_non_zero)
630 30 bytestream2_get_buffer(&gb, td->bitmap + min_non_zero,
631 30 max_non_zero - min_non_zero + 1);
632 30 memset(td->bitmap + max_non_zero + 1, 0, BITMAP_SIZE - max_non_zero - 1);
633
634
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 30 if (bytestream2_get_bytes_left(&gb) < 4)
635 ✗ return AVERROR_INVALIDDATA;
636
637 30 maxval = reverse_lut(td->bitmap, td->lut);
638
639 30 bytestream2_skip(&gb, 4);
640 30 ret = huf_uncompress(s, td, &gb, tmp, dsize / sizeof(uint16_t));
641
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 30 if (ret)
642 ✗ return ret;
643
644 30 ptr = tmp;
645
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 120 for (i = 0; i < s->nb_channels; i++) {
646 90 channel = &s->channels[i];
647
648
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 90 if (channel->pixel_type == EXR_HALF)
649 78 pixel_half_size = 1;
650 else
651 12 pixel_half_size = 2;
652
653
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 192 for (j = 0; j < pixel_half_size; j++)
654 102 wav_decode(ptr + j, td->xsize, pixel_half_size, td->ysize,
655 102 td->xsize * pixel_half_size, maxval);
656 90 ptr += td->xsize * td->ysize * pixel_half_size;
657 }
658
659 30 apply_lut(td->lut, tmp, dsize / sizeof(uint16_t));
660
661 30 out = (uint16_t *)td->uncompressed_data;
662
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 921 for (i = 0; i < td->ysize; i++) {
663 891 tmp_offset = 0;
664
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 3564 for (j = 0; j < s->nb_channels; j++) {
665 2673 channel = &s->channels[j];
666
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 2673 if (channel->pixel_type == EXR_HALF)
667 2289 pixel_half_size = 1;
668 else
669 384 pixel_half_size = 2;
670
671 2673 in = tmp + tmp_offset * td->xsize * td->ysize + i * td->xsize * pixel_half_size;
672 2673 tmp_offset += pixel_half_size;
673
674 #if HAVE_BIGENDIAN
675 s->bbdsp.bswap16_buf(out, in, td->xsize * pixel_half_size);
676 #else
677 2673 memcpy(out, in, td->xsize * 2 * pixel_half_size);
678 #endif
679 2673 out += td->xsize * pixel_half_size;
680 }
681 }
682
683 30 return 0;
684 }
685
686 61 static int pxr24_uncompress(const EXRContext *s, const uint8_t *src,
687 int compressed_size, int uncompressed_size,
688 EXRThreadData *td)
689 {
690 61 unsigned long dest_len, expected_len = 0;
691 61 const uint8_t *in = td->tmp;
692 uint8_t *out;
693 int c, i, j;
694
695
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 279 for (i = 0; i < s->nb_channels; i++) {
696
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 218 if (s->channels[i].pixel_type == EXR_FLOAT) {
697 31 expected_len += (td->xsize * td->ysize * 3);/* PRX 24 store float in 24 bit instead of 32 */
698
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 187 } else if (s->channels[i].pixel_type == EXR_HALF) {
699 181 expected_len += (td->xsize * td->ysize * 2);
700 } else {//UINT 32
701 6 expected_len += (td->xsize * td->ysize * 4);
702 }
703 }
704
705 61 dest_len = expected_len;
706
707
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 61 if (uncompress(td->tmp, &dest_len, src, compressed_size) != Z_OK) {
708 ✗ return AVERROR_INVALIDDATA;
709
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 61 } else if (dest_len != expected_len) {
710 ✗ return AVERROR_INVALIDDATA;
711 }
712
713 61 out = td->uncompressed_data;
714
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 950 for (i = 0; i < td->ysize; i++)
715
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 3839 for (c = 0; c < s->nb_channels; c++) {
716 2950 EXRChannel *channel = &s->channels[c];
717 const uint8_t *ptr[4];
718 2950 uint32_t pixel = 0;
719
720
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 2950 switch (channel->pixel_type) {
721 248 case EXR_FLOAT:
722 248 ptr[0] = in;
723 248 ptr[1] = ptr[0] + td->xsize;
724 248 ptr[2] = ptr[1] + td->xsize;
725 248 in = ptr[2] + td->xsize;
726
727
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 3224 for (j = 0; j < td->xsize; ++j) {
728 2976 uint32_t diff = ((unsigned)*(ptr[0]++) << 24) |
729 2976 (*(ptr[1]++) << 16) |
730 2976 (*(ptr[2]++) << 8);
731 2976 pixel += diff;
732 2976 bytestream_put_le32(&out, pixel);
733 }
734 248 break;
735 2651 case EXR_HALF:
736 2651 ptr[0] = in;
737 2651 ptr[1] = ptr[0] + td->xsize;
738 2651 in = ptr[1] + td->xsize;
739
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 1925690 for (j = 0; j < td->xsize; j++) {
740 1923039 uint32_t diff = (*(ptr[0]++) << 8) | *(ptr[1]++);
741
742 1923039 pixel += diff;
743 1923039 bytestream_put_le16(&out, pixel);
744 }
745 2651 break;
746 51 case EXR_UINT:
747 51 ptr[0] = in;
748 51 ptr[1] = ptr[0] + td->xsize;
749 51 ptr[2] = ptr[1] + td->xsize;
750 51 ptr[3] = ptr[2] + td->xsize;
751 51 in = ptr[3] + td->xsize;
752
753
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 690 for (j = 0; j < td->xsize; ++j) {
754 639 uint32_t diff = ((uint32_t)*(ptr[0]++) << 24) |
755 639 (*(ptr[1]++) << 16) |
756 639 (*(ptr[2]++) << 8 ) |
757 639 (*(ptr[3]++));
758 639 pixel += diff;
759 639 bytestream_put_le32(&out, pixel);
760 }
761 51 break;
762 ✗ default:
763 ✗ return AVERROR_INVALIDDATA;
764 }
765 }
766
767 61 return 0;
768 }
769
770 59279 static void unpack_14(const uint8_t b[14], uint16_t s[16])
771 {
772 59279 uint16_t shift = (b[ 2] >> 2) & 15;
773 59279 uint16_t bias = (0x20 << shift);
774 int i;
775
776 59279 s[ 0] = (b[0] << 8) | b[1];
777
778 59279 s[ 4] = s[ 0] + ((((b[ 2] << 4) | (b[ 3] >> 4)) & 0x3f) << shift) - bias;
779 59279 s[ 8] = s[ 4] + ((((b[ 3] << 2) | (b[ 4] >> 6)) & 0x3f) << shift) - bias;
780 59279 s[12] = s[ 8] + ((b[ 4] & 0x3f) << shift) - bias;
781
782 59279 s[ 1] = s[ 0] + ((b[ 5] >> 2) << shift) - bias;
783 59279 s[ 5] = s[ 4] + ((((b[ 5] << 4) | (b[ 6] >> 4)) & 0x3f) << shift) - bias;
784 59279 s[ 9] = s[ 8] + ((((b[ 6] << 2) | (b[ 7] >> 6)) & 0x3f) << shift) - bias;
785 59279 s[13] = s[12] + ((b[ 7] & 0x3f) << shift) - bias;
786
787 59279 s[ 2] = s[ 1] + ((b[ 8] >> 2) << shift) - bias;
788 59279 s[ 6] = s[ 5] + ((((b[ 8] << 4) | (b[ 9] >> 4)) & 0x3f) << shift) - bias;
789 59279 s[10] = s[ 9] + ((((b[ 9] << 2) | (b[10] >> 6)) & 0x3f) << shift) - bias;
790 59279 s[14] = s[13] + ((b[10] & 0x3f) << shift) - bias;
791
792 59279 s[ 3] = s[ 2] + ((b[11] >> 2) << shift) - bias;
793 59279 s[ 7] = s[ 6] + ((((b[11] << 4) | (b[12] >> 4)) & 0x3f) << shift) - bias;
794 59279 s[11] = s[10] + ((((b[12] << 2) | (b[13] >> 6)) & 0x3f) << shift) - bias;
795 59279 s[15] = s[14] + ((b[13] & 0x3f) << shift) - bias;
796
797
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 1007743 for (i = 0; i < 16; ++i) {
798
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 948464 if (s[i] & 0x8000)
799 942347 s[i] &= 0x7fff;
800 else
801 6117 s[i] = ~s[i];
802 }
803 59279 }
804
805 106 static void unpack_3(const uint8_t b[3], uint16_t s[16])
806 {
807 int i;
808
809 106 s[0] = (b[0] << 8) | b[1];
810
811
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 106 if (s[0] & 0x8000)
812 105 s[0] &= 0x7fff;
813 else
814 1 s[0] = ~s[0];
815
816
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 1696 for (i = 1; i < 16; i++)
817 1590 s[i] = s[0];
818 106 }
819
820
821 23 static int b44_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
822 int uncompressed_size, EXRThreadData *td) {
823 23 const int8_t *sr = src;
824 23 int stay_to_uncompress = compressed_size;
825 int nb_b44_block_w, nb_b44_block_h;
826 int index_tl_x, index_tl_y, index_out, index_tmp;
827 uint16_t tmp_buffer[16]; /* B44 use 4x4 half float pixel */
828 int c, iY, iX, y, x;
829 23 int target_channel_offset = 0;
830
831 /* calc B44 block count */
832 23 nb_b44_block_w = td->xsize / 4;
833
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 23 if ((td->xsize % 4) != 0)
834 13 nb_b44_block_w++;
835
836 23 nb_b44_block_h = td->ysize / 4;
837
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 23 if ((td->ysize % 4) != 0)
838 6 nb_b44_block_h++;
839
840
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 156 for (c = 0; c < s->nb_channels; c++) {
841
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 133 if (s->channels[c].pixel_type == EXR_HALF) {/* B44 only compress half float data */
842
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 459 for (iY = 0; iY < nb_b44_block_h; iY++) {
843
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 59759 for (iX = 0; iX < nb_b44_block_w; iX++) {/* For each B44 block */
844
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 59385 if (stay_to_uncompress < 3)
845 ✗ return AVERROR_INVALIDDATA;
846
847
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 59385 if (src[compressed_size - stay_to_uncompress + 2] == 0xfc) { /* B44A block */
848 106 unpack_3(sr, tmp_buffer);
849 106 sr += 3;
850 106 stay_to_uncompress -= 3;
851 } else {/* B44 Block */
852
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 59279 if (stay_to_uncompress < 14)
853 ✗ return AVERROR_INVALIDDATA;
854 59279 unpack_14(sr, tmp_buffer);
855 59279 sr += 14;
856 59279 stay_to_uncompress -= 14;
857 }
858
859 /* copy data to uncompress buffer (B44 block can exceed target resolution)*/
860 59385 index_tl_x = iX * 4;
861 59385 index_tl_y = iY * 4;
862
863
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 295761 for (y = index_tl_y; y < FFMIN(index_tl_y + 4, td->ysize); y++) {
864
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 1180363 for (x = index_tl_x; x < FFMIN(index_tl_x + 4, td->xsize); x++) {
865 943987 index_out = target_channel_offset * td->xsize + y * td->channel_line_size + 2 * x;
866 943987 index_tmp = (y-index_tl_y) * 4 + (x-index_tl_x);
867 943987 td->uncompressed_data[index_out] = tmp_buffer[index_tmp] & 0xff;
868 943987 td->uncompressed_data[index_out + 1] = tmp_buffer[index_tmp] >> 8;
869 }
870 }
871 }
872 }
873 85 target_channel_offset += 2;
874 } else {/* Float or UINT 32 channel */
875
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 48 if (stay_to_uncompress < td->ysize * td->xsize * 4)
876 ✗ return AVERROR_INVALIDDATA;
877
878
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 448 for (y = 0; y < td->ysize; y++) {
879 400 index_out = target_channel_offset * td->xsize + y * td->channel_line_size;
880 400 memcpy(&td->uncompressed_data[index_out], sr, td->xsize * 4);
881 400 sr += td->xsize * 4;
882 }
883 48 target_channel_offset += 4;
884
885 48 stay_to_uncompress -= td->ysize * td->xsize * 4;
886 }
887 }
888
889 23 return 0;
890 }
891
892 ✗ static int ac_uncompress(const EXRContext *s, GetByteContext *gb, float *block)
893 {
894 ✗ int ret = 0, n = 1;
895
896 ✗ while (n < 64) {
897 ✗ uint16_t val = bytestream2_get_ne16(gb);
898
899 ✗ if (val == 0xff00) {
900 ✗ n = 64;
901 ✗ } else if ((val >> 8) == 0xff) {
902 ✗ n += val & 0xff;
903 } else {
904 ✗ ret = n;
905 ✗ block[ff_zigzag_direct[n]] = av_int2float(half2float(val, &s->h2f_tables));
906 ✗ n++;
907 }
908 }
909
910 ✗ return ret;
911 }
912
913 ✗ static void idct_1d(float *blk, int step)
914 {
915 ✗ const float a = .5f * cosf( M_PI / 4.f);
916 ✗ const float b = .5f * cosf( M_PI / 16.f);
917 ✗ const float c = .5f * cosf( M_PI / 8.f);
918 ✗ const float d = .5f * cosf(3.f*M_PI / 16.f);
919 ✗ const float e = .5f * cosf(5.f*M_PI / 16.f);
920 ✗ const float f = .5f * cosf(3.f*M_PI / 8.f);
921 ✗ const float g = .5f * cosf(7.f*M_PI / 16.f);
922
923 float alpha[4], beta[4], theta[4], gamma[4];
924
925 ✗ alpha[0] = c * blk[2 * step];
926 ✗ alpha[1] = f * blk[2 * step];
927 ✗ alpha[2] = c * blk[6 * step];
928 ✗ alpha[3] = f * blk[6 * step];
929
930 ✗ beta[0] = b * blk[1 * step] + d * blk[3 * step] + e * blk[5 * step] + g * blk[7 * step];
931 ✗ beta[1] = d * blk[1 * step] - g * blk[3 * step] - b * blk[5 * step] - e * blk[7 * step];
932 ✗ beta[2] = e * blk[1 * step] - b * blk[3 * step] + g * blk[5 * step] + d * blk[7 * step];
933 ✗ beta[3] = g * blk[1 * step] - e * blk[3 * step] + d * blk[5 * step] - b * blk[7 * step];
934
935 ✗ theta[0] = a * (blk[0 * step] + blk[4 * step]);
936 ✗ theta[3] = a * (blk[0 * step] - blk[4 * step]);
937
938 ✗ theta[1] = alpha[0] + alpha[3];
939 ✗ theta[2] = alpha[1] - alpha[2];
940
941 ✗ gamma[0] = theta[0] + theta[1];
942 ✗ gamma[1] = theta[3] + theta[2];
943 ✗ gamma[2] = theta[3] - theta[2];
944 ✗ gamma[3] = theta[0] - theta[1];
945
946 ✗ blk[0 * step] = gamma[0] + beta[0];
947 ✗ blk[1 * step] = gamma[1] + beta[1];
948 ✗ blk[2 * step] = gamma[2] + beta[2];
949 ✗ blk[3 * step] = gamma[3] + beta[3];
950
951 ✗ blk[4 * step] = gamma[3] - beta[3];
952 ✗ blk[5 * step] = gamma[2] - beta[2];
953 ✗ blk[6 * step] = gamma[1] - beta[1];
954 ✗ blk[7 * step] = gamma[0] - beta[0];
955 ✗ }
956
957 ✗ static void dct_inverse(float *block)
958 {
959 ✗ for (int i = 0; i < 8; i++)
960 ✗ idct_1d(block + i, 8);
961
962 ✗ for (int i = 0; i < 8; i++) {
963 ✗ idct_1d(block, 1);
964 ✗ block += 8;
965 }
966 ✗ }
967
968 ✗ static void convert(float y, float u, float v,
969 float *b, float *g, float *r)
970 {
971 ✗ *r = y + 1.5747f * v;
972 ✗ *g = y - 0.1873f * u - 0.4682f * v;
973 ✗ *b = y + 1.8556f * u;
974 ✗ }
975
976 ✗ static float to_linear(float x, float scale)
977 {
978 ✗ float ax = fabsf(x);
979
980 ✗ if (ax <= 1.f) {
981 ✗ return FFSIGN(x) * powf(ax, 2.2f * scale);
982 } else {
983 ✗ const float log_base = expf(2.2f * scale);
984
985 ✗ return FFSIGN(x) * powf(log_base, ax - 1.f);
986 }
987 }
988
989 ✗ static int dwa_uncompress(const EXRContext *s, const uint8_t *src, int compressed_size,
990 int uncompressed_size, EXRThreadData *td)
991 {
992 int64_t version, lo_usize, lo_size;
993 int64_t ac_size, dc_size, rle_usize, rle_csize, rle_raw_size;
994 int64_t ac_count, dc_count, ac_compression;
995 ✗ const int dc_w = (td->xsize + 7) >> 3;
996 ✗ const int dc_h = (td->ysize + 7) >> 3;
997 GetByteContext gb, agb;
998 int skip, ret;
999 ✗ int have_rle = 0;
1000
1001 ✗ if (compressed_size <= 88)
1002 ✗ return AVERROR_INVALIDDATA;
1003
1004 ✗ version = AV_RL64(src + 0);
1005 ✗ if (version != 2)
1006 ✗ return AVERROR_INVALIDDATA;
1007
1008 ✗ if (s->nb_channels < 3) {
1009 ✗ avpriv_request_sample(s->avctx, "Gray DWA");
1010 ✗ return AVERROR_PATCHWELCOME;
1011 }
1012
1013 ✗ lo_usize = AV_RL64(src + 8);
1014 ✗ lo_size = AV_RL64(src + 16);
1015 ✗ ac_size = AV_RL64(src + 24);
1016 ✗ dc_size = AV_RL64(src + 32);
1017 ✗ rle_csize = AV_RL64(src + 40);
1018 ✗ rle_usize = AV_RL64(src + 48);
1019 ✗ rle_raw_size = AV_RL64(src + 56);
1020 ✗ ac_count = AV_RL64(src + 64);
1021 ✗ dc_count = AV_RL64(src + 72);
1022 ✗ ac_compression = AV_RL64(src + 80);
1023
1024 ✗ if ( compressed_size < (uint64_t)(lo_size | ac_size | dc_size | rle_csize) || compressed_size < 88LL + lo_size + ac_size + dc_size + rle_csize
1025 ✗ || ac_count > (uint64_t)INT_MAX/2
1026 )
1027 ✗ return AVERROR_INVALIDDATA;
1028
1029 ✗ if (ac_size <= 0) {
1030 ✗ avpriv_request_sample(s->avctx, "Zero ac_size");
1031 ✗ return AVERROR_INVALIDDATA;
1032 }
1033
1034 ✗ if ((uint64_t)rle_raw_size > INT_MAX) {
1035 ✗ avpriv_request_sample(s->avctx, "Too big rle_raw_size");
1036 ✗ return AVERROR_INVALIDDATA;
1037 }
1038
1039 ✗ if (td->xsize % 8 || td->ysize % 8) {
1040 ✗ avpriv_request_sample(s->avctx, "odd dimensions DWA");
1041 }
1042
1043 ✗ bytestream2_init(&gb, src + 88, compressed_size - 88);
1044 ✗ skip = bytestream2_get_le16(&gb);
1045 ✗ if (skip < 2)
1046 ✗ return AVERROR_INVALIDDATA;
1047
1048 ✗ bytestream2_skip(&gb, skip - 2);
1049
1050 ✗ if (lo_size > 0) {
1051 ✗ if (lo_usize > uncompressed_size)
1052 ✗ return AVERROR_INVALIDDATA;
1053 ✗ bytestream2_skip(&gb, lo_size);
1054 }
1055
1056 ✗ if (ac_size > 0) {
1057 unsigned long dest_len;
1058 ✗ GetByteContext agb = gb;
1059
1060 ✗ if (ac_count > 3LL * td->xsize * s->scan_lines_per_block)
1061 ✗ return AVERROR_INVALIDDATA;
1062
1063 ✗ dest_len = ac_count * 2LL;
1064
1065 ✗ av_fast_padded_malloc(&td->ac_data, &td->ac_size, dest_len);
1066 ✗ if (!td->ac_data)
1067 ✗ return AVERROR(ENOMEM);
1068
1069 ✗ switch (ac_compression) {
1070 ✗ case 0:
1071 ✗ ret = huf_uncompress(s, td, &agb, (int16_t *)td->ac_data, ac_count);
1072 ✗ if (ret < 0)
1073 ✗ return ret;
1074 ✗ break;
1075 ✗ case 1:
1076 ✗ if (uncompress(td->ac_data, &dest_len, agb.buffer, ac_size) != Z_OK ||
1077 ✗ dest_len != ac_count * 2LL)
1078 ✗ return AVERROR_INVALIDDATA;
1079 ✗ break;
1080 ✗ default:
1081 ✗ return AVERROR_INVALIDDATA;
1082 }
1083
1084 ✗ bytestream2_skip(&gb, ac_size);
1085 }
1086
1087 {
1088 unsigned long dest_len;
1089 ✗ GetByteContext agb = gb;
1090
1091 ✗ if (dc_count != dc_w * dc_h * 3)
1092 ✗ return AVERROR_INVALIDDATA;
1093
1094 ✗ dest_len = dc_count * 2LL;
1095
1096 ✗ av_fast_padded_malloc(&td->dc_data, &td->dc_size, FFALIGN(dest_len, 64) * 2);
1097 ✗ if (!td->dc_data)
1098 ✗ return AVERROR(ENOMEM);
1099
1100 ✗ if (uncompress(td->dc_data + FFALIGN(dest_len, 64), &dest_len, agb.buffer, dc_size) != Z_OK ||
1101 ✗ (dest_len != dc_count * 2LL))
1102 ✗ return AVERROR_INVALIDDATA;
1103
1104 ✗ s->dsp.predictor(td->dc_data + FFALIGN(dest_len, 64), dest_len);
1105 ✗ s->dsp.reorder_pixels(td->dc_data, td->dc_data + FFALIGN(dest_len, 64), dest_len);
1106
1107 ✗ bytestream2_skip(&gb, dc_size);
1108 }
1109
1110 ✗ if (rle_raw_size > 0 && rle_csize > 0 && rle_usize > 0) {
1111 ✗ unsigned long dest_len = rle_usize;
1112
1113 ✗ if (2LL * td->xsize * td->ysize > rle_raw_size)
1114 ✗ return AVERROR_INVALIDDATA;
1115
1116 ✗ av_fast_padded_malloc(&td->rle_data, &td->rle_size, rle_usize);
1117 ✗ if (!td->rle_data)
1118 ✗ return AVERROR(ENOMEM);
1119
1120 ✗ av_fast_padded_malloc(&td->rle_raw_data, &td->rle_raw_size, rle_raw_size);
1121 ✗ if (!td->rle_raw_data)
1122 ✗ return AVERROR(ENOMEM);
1123
1124 ✗ if (uncompress(td->rle_data, &dest_len, gb.buffer, rle_csize) != Z_OK ||
1125 ✗ (dest_len != rle_usize))
1126 ✗ return AVERROR_INVALIDDATA;
1127
1128 ✗ ret = rle(td->rle_raw_data, td->rle_data, rle_usize, rle_raw_size);
1129 ✗ if (ret < 0)
1130 ✗ return ret;
1131 ✗ bytestream2_skip(&gb, rle_csize);
1132
1133 ✗ have_rle = 1;
1134 }
1135
1136 ✗ bytestream2_init(&agb, td->ac_data, ac_count * 2);
1137
1138 ✗ for (int y = 0; y < td->ysize; y += 8) {
1139 ✗ for (int x = 0; x < td->xsize; x += 8) {
1140 ✗ const int o = s->nb_channels == 4;
1141 ✗ float *yb = td->block[0];
1142 ✗ float *ub = td->block[1];
1143 ✗ float *vb = td->block[2];
1144 ✗ int bw = FFMIN(8, td->xsize - x);
1145 ✗ int bh = FFMIN(8, td->ysize - y);
1146
1147 ✗ memset(td->block, 0, sizeof(td->block));
1148
1149 ✗ for (int j = 0; j < 3; j++) {
1150 ✗ float *block = td->block[j];
1151 ✗ const int idx = (x >> 3) + (y >> 3) * dc_w + dc_w * dc_h * j;
1152 ✗ uint16_t *dc = (uint16_t *)td->dc_data;
1153 union av_intfloat32 dc_val;
1154
1155 ✗ dc_val.i = half2float(dc[idx], &s->h2f_tables);
1156
1157 ✗ block[0] = dc_val.f;
1158 ✗ ac_uncompress(s, &agb, block);
1159 ✗ dct_inverse(block);
1160 }
1161
1162 ✗ if (s->pixel_type == EXR_HALF) {
1163 ✗ uint16_t *bo = ((uint16_t *)td->uncompressed_data) +
1164 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1165 ✗ uint16_t *go = ((uint16_t *)td->uncompressed_data) +
1166 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1167 ✗ uint16_t *ro = ((uint16_t *)td->uncompressed_data) +
1168 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1169
1170 ✗ for (int yy = 0; yy < bh; yy++) {
1171 ✗ for (int xx = 0; xx < bw; xx++) {
1172 ✗ const int idx = xx + yy * 8;
1173 float b, g, r;
1174
1175 ✗ convert(yb[idx], ub[idx], vb[idx], &b, &g, &r);
1176
1177 ✗ bo[xx] = float2half(av_float2int(to_linear(b, 1.f)), &s->f2h_tables);
1178 ✗ go[xx] = float2half(av_float2int(to_linear(g, 1.f)), &s->f2h_tables);
1179 ✗ ro[xx] = float2half(av_float2int(to_linear(r, 1.f)), &s->f2h_tables);
1180 }
1181
1182 ✗ bo += td->xsize * s->nb_channels;
1183 ✗ go += td->xsize * s->nb_channels;
1184 ✗ ro += td->xsize * s->nb_channels;
1185 }
1186 } else {
1187 ✗ float *bo = ((float *)td->uncompressed_data) +
1188 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 0) + x;
1189 ✗ float *go = ((float *)td->uncompressed_data) +
1190 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 1) + x;
1191 ✗ float *ro = ((float *)td->uncompressed_data) +
1192 ✗ y * td->xsize * s->nb_channels + td->xsize * (o + 2) + x;
1193
1194 ✗ for (int yy = 0; yy < bh; yy++) {
1195 ✗ for (int xx = 0; xx < bw; xx++) {
1196 ✗ const int idx = xx + yy * 8;
1197
1198 ✗ convert(yb[idx], ub[idx], vb[idx], &bo[xx], &go[xx], &ro[xx]);
1199
1200 ✗ bo[xx] = to_linear(bo[xx], 1.f);
1201 ✗ go[xx] = to_linear(go[xx], 1.f);
1202 ✗ ro[xx] = to_linear(ro[xx], 1.f);
1203 }
1204
1205 ✗ bo += td->xsize * s->nb_channels;
1206 ✗ go += td->xsize * s->nb_channels;
1207 ✗ ro += td->xsize * s->nb_channels;
1208 }
1209 }
1210 }
1211 }
1212
1213 ✗ if (s->nb_channels < 4)
1214 ✗ return 0;
1215
1216 ✗ if (s->pixel_type == EXR_HALF) {
1217 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1218 ✗ uint16_t *ao = ((uint16_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1219 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1220 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1221
1222 ✗ for (int x = 0; x < td->xsize; x++)
1223 ✗ ao[x] = ai0[x] | (ai1[x] << 8);
1224 }
1225 } else {
1226 ✗ for (int y = 0; y < td->ysize && have_rle; y++) {
1227 ✗ uint32_t *ao = ((uint32_t *)td->uncompressed_data) + y * td->xsize * s->nb_channels;
1228 ✗ uint8_t *ai0 = td->rle_raw_data + y * td->xsize;
1229 ✗ uint8_t *ai1 = td->rle_raw_data + y * td->xsize + rle_raw_size / 2;
1230
1231 ✗ for (int x = 0; x < td->xsize; x++) {
1232 ✗ uint16_t ha = ai0[x] | (ai1[x] << 8);
1233
1234 ✗ ao[x] = half2float(ha, &s->h2f_tables);
1235 }
1236 }
1237 }
1238
1239 ✗ return 0;
1240 }
1241
1242 37267 static int decode_block(AVCodecContext *avctx, void *tdata,
1243 int jobnr, int threadnr)
1244 {
1245 37267 const EXRContext *s = avctx->priv_data;
1246 37267 AVFrame *const p = s->picture;
1247 37267 EXRThreadData *td = &s->thread_data[threadnr];
1248 37267 const uint8_t *channel_buffer[4] = { 0 };
1249 37267 const uint8_t *buf = s->buf;
1250 uint64_t line_offset, uncompressed_size;
1251 uint8_t *ptr;
1252 uint32_t data_size;
1253 37267 int line, col = 0;
1254 uint64_t tile_x, tile_y, tile_level_x, tile_level_y;
1255 const uint8_t *src;
1256 37267 int step = s->desc->comp[0].step;
1257 37267 int bxmin = 0, axmax = 0, window_xoffset = 0;
1258 int window_xmin, window_xmax, window_ymin, window_ymax;
1259 int data_xoffset, data_yoffset, data_window_offset, xsize, ysize;
1260 37267 int i, x, buf_size = s->buf_size;
1261 int c, rgb_channel_count;
1262 int ret;
1263
1264 37267 line_offset = AV_RL64(s->gb.buffer + jobnr * 8);
1265
1266
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 37267 if (s->is_tile) {
1267
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 104 if (buf_size < 20 || line_offset > buf_size - 20)
1268 ✗ return AVERROR_INVALIDDATA;
1269
1270 104 src = buf + line_offset + 20;
1271
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 104 if (s->is_multipart)
1272 ✗ src += 4;
1273
1274 104 tile_x = AV_RL32(src - 20);
1275 104 tile_y = AV_RL32(src - 16);
1276 104 tile_level_x = AV_RL32(src - 12);
1277 104 tile_level_y = AV_RL32(src - 8);
1278
1279 104 data_size = AV_RL32(src - 4);
1280
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 104 if (data_size <= 0 || data_size > buf_size - line_offset - 20)
1281 ✗ return AVERROR_INVALIDDATA;
1282
1283
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 104 if (tile_level_x || tile_level_y) { /* tile level, is not the full res level */
1284 ✗ avpriv_report_missing_feature(s->avctx, "Subres tile before full res tile");
1285 ✗ return AVERROR_PATCHWELCOME;
1286 }
1287
1288
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 104 if (tile_x && s->tile_attr.xSize + (int64_t)FFMAX(s->xmin, 0) >= INT_MAX / tile_x )
1289 ✗ return AVERROR_INVALIDDATA;
1290
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 104 if (tile_y && s->tile_attr.ySize + (int64_t)FFMAX(s->ymin, 0) >= INT_MAX / tile_y )
1291 ✗ return AVERROR_INVALIDDATA;
1292
1293 104 line = s->ymin + s->tile_attr.ySize * tile_y;
1294 104 col = s->tile_attr.xSize * tile_x;
1295
1296
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 104 if (line < s->ymin || line > s->ymax ||
1297
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 104 s->xmin + col < s->xmin || s->xmin + col > s->xmax)
1298 ✗ return AVERROR_INVALIDDATA;
1299
1300 104 td->ysize = FFMIN(s->tile_attr.ySize, s->ydelta - tile_y * s->tile_attr.ySize);
1301 104 td->xsize = FFMIN(s->tile_attr.xSize, s->xdelta - tile_x * s->tile_attr.xSize);
1302
1303
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 208 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1304 104 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1305 ✗ return AVERROR_INVALIDDATA;
1306
1307 104 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1308 104 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1309 } else {
1310
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 37163 if (buf_size < 8 || line_offset > buf_size - 8)
1311 ✗ return AVERROR_INVALIDDATA;
1312
1313 37163 src = buf + line_offset + 8;
1314
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 37163 if (s->is_multipart)
1315 ✗ src += 4;
1316 37163 line = AV_RL32(src - 8);
1317
1318
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 37163 if (line < s->ymin || line > s->ymax)
1319 ✗ return AVERROR_INVALIDDATA;
1320
1321 37163 data_size = AV_RL32(src - 4);
1322
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 37163 if (data_size <= 0 || data_size > buf_size - line_offset - 8)
1323 ✗ return AVERROR_INVALIDDATA;
1324
1325 37163 td->ysize = FFMIN(s->scan_lines_per_block, s->ymax - line + 1); /* s->ydelta - line ?? */
1326 37163 td->xsize = s->xdelta;
1327
1328
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 74326 if (td->xsize * (uint64_t)s->current_channel_offset > INT_MAX ||
1329 37163 av_image_check_size2(td->xsize, td->ysize, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx) < 0)
1330 ✗ return AVERROR_INVALIDDATA;
1331
1332 37163 td->channel_line_size = td->xsize * s->current_channel_offset;/* uncompress size of one line */
1333 37163 uncompressed_size = td->channel_line_size * (uint64_t)td->ysize;/* uncompress size of the block */
1334
1335
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 37163 if ((s->compression == EXR_RAW && (data_size != uncompressed_size ||
1336
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 11927 line_offset > buf_size - uncompressed_size)) ||
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 37163 (s->compression != EXR_RAW && (data_size > uncompressed_size ||
1338
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 25236 line_offset > buf_size - data_size))) {
1339 ✗ return AVERROR_INVALIDDATA;
1340 }
1341 }
1342
1343 37267 window_xmin = FFMIN(avctx->width, FFMAX(0, s->xmin + col));
1344 37267 window_xmax = FFMIN(avctx->width, FFMAX(0, s->xmin + col + td->xsize));
1345 37267 window_ymin = FFMIN(avctx->height, FFMAX(0, line ));
1346 37267 window_ymax = FFMIN(avctx->height, FFMAX(0, line + td->ysize));
1347 37267 xsize = window_xmax - window_xmin;
1348 37267 ysize = window_ymax - window_ymin;
1349
1350 /* tile or scanline not visible skip decoding */
1351
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 37267 if (xsize <= 0 || ysize <= 0)
1352 433 return 0;
1353
1354 /* is the first tile or is a scanline */
1355
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 36834 if(col == 0) {
1356 36794 window_xmin = 0;
1357 /* pixels to add at the left of the display window */
1358 36794 window_xoffset = FFMAX(0, s->xmin);
1359 /* bytes to add at the left of the display window */
1360 36794 bxmin = window_xoffset * step;
1361 }
1362
1363 /* is the last tile or is a scanline */
1364
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 36834 if(col + td->xsize == s->xdelta) {
1365 36794 window_xmax = avctx->width;
1366 /* bytes to add at the right of the display window */
1367 36794 axmax = FFMAX(0, (avctx->width - (s->xmax + 1))) * step;
1368 }
1369
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 36834 if (avctx->max_pixels && uncompressed_size > avctx->max_pixels * 16LL)
1371 ✗ return AVERROR_INVALIDDATA;
1372
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 36834 if (data_size < uncompressed_size || s->is_tile) { /* td->tmp is use for tile reorganization */
1374 17828 av_fast_padded_malloc(&td->tmp, &td->tmp_size, uncompressed_size);
1375
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 17828 if (!td->tmp)
1376 ✗ return AVERROR(ENOMEM);
1377 }
1378
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 36834 if (data_size < uncompressed_size) {
1380 17815 av_fast_padded_malloc(&td->uncompressed_data,
1381 17815 &td->uncompressed_size, uncompressed_size + 64);/* Force 64 padding for AVX2 reorder_pixels dst */
1382
1383
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 17815 if (!td->uncompressed_data)
1384 ✗ return AVERROR(ENOMEM);
1385
1386 17815 ret = AVERROR_INVALIDDATA;
1387
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 17815 switch (s->compression) {
1388 12853 case EXR_ZIP1:
1389 case EXR_ZIP16:
1390 12853 ret = zip_uncompress(s, src, data_size, uncompressed_size, td);
1391 12853 break;
1392 30 case EXR_PIZ:
1393 30 ret = piz_uncompress(s, src, data_size, uncompressed_size, td);
1394 30 break;
1395 61 case EXR_PXR24:
1396 61 ret = pxr24_uncompress(s, src, data_size, uncompressed_size, td);
1397 61 break;
1398 4848 case EXR_RLE:
1399 4848 ret = rle_uncompress(s, src, data_size, uncompressed_size, td);
1400 4848 break;
1401 23 case EXR_B44:
1402 case EXR_B44A:
1403 23 ret = b44_uncompress(s, src, data_size, uncompressed_size, td);
1404 23 break;
1405 ✗ case EXR_DWAA:
1406 case EXR_DWAB:
1407 ✗ ret = dwa_uncompress(s, src, data_size, uncompressed_size, td);
1408 ✗ break;
1409 }
1410
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 17815 if (ret < 0) {
1411 ✗ av_log(avctx, AV_LOG_ERROR, "decode_block() failed.\n");
1412 ✗ return ret;
1413 }
1414 17815 src = td->uncompressed_data;
1415 }
1416
1417 /* offsets to crop data outside display window */
1418
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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));
1420 36834 data_window_offset = (data_yoffset * td->channel_line_size) + data_xoffset;
1421
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 36834 if (s->channel_offsets[3] >= 0)
1423 13595 channel_buffer[3] = src + (td->xsize * s->channel_offsets[3]) + data_window_offset;
1424
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 36834 if (!s->is_luma) {
1425 25358 channel_buffer[0] = src + (td->xsize * s->channel_offsets[0]) + data_window_offset;
1426 25358 channel_buffer[1] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1427 25358 channel_buffer[2] = src + (td->xsize * s->channel_offsets[2]) + data_window_offset;
1428 25358 rgb_channel_count = 3;
1429 } else { /* put y data in the first channel_buffer and if needed, alpha in the second */
1430 11476 channel_buffer[0] = src + (td->xsize * s->channel_offsets[1]) + data_window_offset;
1431
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 11476 if (!(s->desc->flags & AV_PIX_FMT_FLAG_PLANAR))
1432 11476 channel_buffer[1] = channel_buffer[3];
1433 11476 rgb_channel_count = 1;
1434 }
1435
1436
2/2
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 36834 if (s->desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
1437
2/2
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 137939 for (c = 0; c < s->desc->nb_components; c++) {
1438 101115 int plane = s->desc->comp[c].plane;
1439 101115 ptr = p->data[plane] + window_ymin * p->linesize[plane] + (window_xmin * step) + s->desc->comp[c].offset;
1440
1441
2/2
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 247623 for (i = 0; i < ysize; i++, ptr += p->linesize[plane]) {
1442 146508 const uint8_t *src = channel_buffer[c];
1443 146508 uint8_t *ptr_x = ptr + window_xoffset * step;
1444
1445 // Zero out the start if xmin is not 0
1446
4/4
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✓ Branch 3 taken 8 times.
 146508 if (s->desc->flags & AV_PIX_FMT_FLAG_PLANAR || !c)
1447 146500 memset(ptr, 0, bxmin);
1448
1449
2/2
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 146508 if (s->pixel_type == EXR_FLOAT) {
1450 // 32-bit
1451
2/2
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✓ Branch 1 taken 121876 times.
 42372700 for (int x = 0; x < xsize; x++, ptr_x += step)
1452 42250824 AV_WN32A(ptr_x, bytestream_get_le32(&src));
1453
1/2
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 24632 } else if (s->pixel_type == EXR_HALF) {
1454 // 16-bit
1455
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 10538537 for (int x = 0; x < xsize; x++, ptr_x += step)
1456 10513905 AV_WN16A(ptr_x, bytestream_get_le16(&src));
1457 }
1458
1459 // Zero out the end if xmax+1 is not w
1460
4/4
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 146508 if (s->desc->flags & AV_PIX_FMT_FLAG_PLANAR || !c)
1461 146500 memset(ptr_x, 0, axmax);
1462 146508 channel_buffer[c] += td->channel_line_size;
1463 }
1464 }
1465 } else {
1466
1467 av_assert1(s->pixel_type == EXR_UINT);
1468 10 ptr = p->data[0] + window_ymin * p->linesize[0] + (window_xmin * s->desc->nb_components * 2);
1469
1470
2/2
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 185 for (i = 0; i < ysize; i++, ptr += p->linesize[0]) {
1471
1472 const uint8_t * a;
1473 const uint8_t *rgb[3];
1474 uint16_t *ptr_x;
1475
1476
2/2
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 700 for (c = 0; c < rgb_channel_count; c++) {
1477 525 rgb[c] = channel_buffer[c];
1478 }
1479
1480
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✓ Branch 1 taken 175 times.
 175 if (channel_buffer[3])
1481 ✗ a = channel_buffer[3];
1482
1483 175 ptr_x = (uint16_t *) ptr;
1484
1485 // Zero out the start if xmin is not 0
1486 175 memset(ptr_x, 0, bxmin);
1487 175 ptr_x += window_xoffset * s->desc->nb_components;
1488
1489
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 5484 for (x = 0; x < xsize; x++) {
1490
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 21236 for (c = 0; c < rgb_channel_count; c++) {
1491 15927 *ptr_x++ = bytestream_get_le32(&rgb[c]) >> 16;
1492 }
1493
1494
1/2
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✓ Branch 1 taken 5309 times.
 5309 if (channel_buffer[3])
1495 ✗ *ptr_x++ = bytestream_get_le32(&a) >> 16;
1496 }
1497
1498 // Zero out the end if xmax+1 is not w
1499 175 memset(ptr_x, 0, axmax);
1500
1501 175 channel_buffer[0] += td->channel_line_size;
1502 175 channel_buffer[1] += td->channel_line_size;
1503 175 channel_buffer[2] += td->channel_line_size;
1504
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 175 if (channel_buffer[3])
1505 ✗ channel_buffer[3] += td->channel_line_size;
1506 }
1507 }
1508
1509 36834 return 0;
1510 }
1511
1512 ✗ static void skip_header_chunk(EXRContext *s)
1513 {
1514 ✗ GetByteContext *gb = &s->gb;
1515
1516 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1517 ✗ if (!bytestream2_peek_byte(gb))
1518 ✗ break;
1519
1520 // Process unknown variables
1521 ✗ for (int i = 0; i < 2; i++) // value_name and value_type
1522 ✗ while (bytestream2_get_byte(gb) != 0);
1523
1524 // Skip variable length
1525 ✗ bytestream2_skip(gb, bytestream2_get_le32(gb));
1526 }
1527 ✗ }
1528
1529 /**
1530 * Check if the variable name corresponds to its data type.
1531 *
1532 * @param s the EXRContext
1533 * @param value_name name of the variable to check
1534 * @param value_type type of the variable to check
1535 * @param minimum_length minimum length of the variable data
1536 *
1537 * @return bytes to read containing variable data
1538 * -1 if variable is not found
1539 * 0 if buffer ended prematurely
1540 */
1541 32478 static int check_header_variable(EXRContext *s,
1542 const char *value_name,
1543 const char *value_type,
1544 unsigned int minimum_length)
1545 {
1546 32478 GetByteContext *gb = &s->gb;
1547 32478 int var_size = -1;
1548
1549
1/2
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✗ Branch 2 not taken.
 32478 if (bytestream2_get_bytes_left(gb) >= minimum_length &&
1550
2/2
✓ Branch 0 taken 2166 times.
✓ Branch 1 taken 30312 times.
 32478 !strcmp(gb->buffer, value_name)) {
1551 // found value_name, jump to value_type (null terminated strings)
1552 2166 gb->buffer += strlen(value_name) + 1;
1553
1/2
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✗ Branch 1 not taken.
 2166 if (!strcmp(gb->buffer, value_type)) {
1554 2166 gb->buffer += strlen(value_type) + 1;
1555 2166 var_size = bytestream2_get_le32(gb);
1556 // don't go read past boundaries
1557
1/2
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✓ Branch 2 taken 2166 times.
 2166 if (var_size > bytestream2_get_bytes_left(gb))
1558 ✗ var_size = 0;
1559 } else {
1560 // value_type not found, reset the buffer
1561 ✗ gb->buffer -= strlen(value_name) + 1;
1562 ✗ av_log(s->avctx, AV_LOG_WARNING,
1563 "Unknown data type %s for header variable %s.\n",
1564 value_type, value_name);
1565 }
1566 }
1567
1568 32478 return var_size;
1569 }
1570
1571 316 static int decode_header(EXRContext *s, AVFrame *frame)
1572 {
1573 316 AVDictionary *metadata = NULL;
1574 316 GetByteContext *gb = &s->gb;
1575 int magic_number, version, flags;
1576 316 int layer_match = 0;
1577 int ret;
1578 316 int dup_channels = 0;
1579
1580 316 s->current_channel_offset = 0;
1581 316 s->xmin = ~0;
1582 316 s->xmax = ~0;
1583 316 s->ymin = ~0;
1584 316 s->ymax = ~0;
1585 316 s->xdelta = ~0;
1586 316 s->ydelta = ~0;
1587 316 s->channel_offsets[0] = -1;
1588 316 s->channel_offsets[1] = -1;
1589 316 s->channel_offsets[2] = -1;
1590 316 s->channel_offsets[3] = -1;
1591 316 s->pixel_type = EXR_UNKNOWN;
1592 316 s->compression = EXR_UNKN;
1593 316 s->nb_channels = 0;
1594 316 s->w = 0;
1595 316 s->h = 0;
1596 316 s->tile_attr.xSize = -1;
1597 316 s->tile_attr.ySize = -1;
1598 316 s->is_tile = 0;
1599 316 s->is_multipart = 0;
1600 316 s->is_luma = 0;
1601 316 s->has_channel = 0;
1602 316 s->current_part = 0;
1603
1604
1/2
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✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) < 10) {
1605 ✗ av_log(s->avctx, AV_LOG_ERROR, "Header too short to parse.\n");
1606 ✗ return AVERROR_INVALIDDATA;
1607 }
1608
1609 316 magic_number = bytestream2_get_le32(gb);
1610
1/2
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✓ Branch 1 taken 316 times.
 316 if (magic_number != 20000630) {
1611 /* As per documentation of OpenEXR, it is supposed to be
1612 * int 20000630 little-endian */
1613 ✗ av_log(s->avctx, AV_LOG_ERROR, "Wrong magic number %d.\n", magic_number);
1614 ✗ return AVERROR_INVALIDDATA;
1615 }
1616
1617 316 version = bytestream2_get_byte(gb);
1618
1/2
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✓ Branch 1 taken 316 times.
 316 if (version != 2) {
1619 ✗ avpriv_report_missing_feature(s->avctx, "Version %d", version);
1620 ✗ return AVERROR_PATCHWELCOME;
1621 }
1622
1623 316 flags = bytestream2_get_le24(gb);
1624
1625
2/2
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✓ Branch 1 taken 272 times.
 316 if (flags & 0x02)
1626 44 s->is_tile = 1;
1627
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 316 if (flags & 0x10)
1628 ✗ s->is_multipart = 1;
1629
1/2
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 316 if (flags & 0x08) {
1630 ✗ avpriv_report_missing_feature(s->avctx, "deep data");
1631 ✗ return AVERROR_PATCHWELCOME;
1632 }
1633
1634 // Parse the header
1635
1/2
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✗ Branch 2 not taken.
 4396 while (bytestream2_get_bytes_left(gb) > 0) {
1636 int var_size;
1637
1638
1/6
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 4396 while (s->is_multipart && s->current_part < s->selected_part &&
1639 ✗ bytestream2_get_bytes_left(gb) > 0) {
1640 ✗ if (bytestream2_peek_byte(gb)) {
1641 ✗ skip_header_chunk(s);
1642 } else {
1643 ✗ bytestream2_skip(gb, 1);
1644 ✗ if (!bytestream2_peek_byte(gb))
1645 ✗ break;
1646 }
1647 ✗ bytestream2_skip(gb, 1);
1648 ✗ s->current_part++;
1649 }
1650
1651
2/2
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✓ Branch 2 taken 4080 times.
 4396 if (!bytestream2_peek_byte(gb)) {
1652
1/2
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✗ Branch 1 not taken.
 316 if (!s->is_multipart)
1653 316 break;
1654 ✗ bytestream2_skip(gb, 1);
1655 ✗ if (s->current_part == s->selected_part) {
1656 ✗ while (bytestream2_get_bytes_left(gb) > 0) {
1657 ✗ if (bytestream2_peek_byte(gb)) {
1658 ✗ skip_header_chunk(s);
1659 } else {
1660 ✗ bytestream2_skip(gb, 1);
1661 ✗ if (!bytestream2_peek_byte(gb))
1662 ✗ break;
1663 }
1664 }
1665 }
1666 ✗ if (!bytestream2_peek_byte(gb))
1667 ✗ break;
1668 ✗ s->current_part++;
1669 }
1670
1671
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3764 times.
 4080 if ((var_size = check_header_variable(s, "channels",
1672 316 "chlist", 38)) >= 0) {
1673 GetByteContext ch_gb;
1674
1/2
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✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1675 ✗ ret = AVERROR_INVALIDDATA;
1676 ✗ goto fail;
1677 }
1678
1679 316 bytestream2_init(&ch_gb, gb->buffer, var_size);
1680
1681
2/2
✓ Branch 1 taken 1212 times.
✓ Branch 2 taken 316 times.
 1528 while (bytestream2_get_bytes_left(&ch_gb) >= 19) {
1682 EXRChannel *channel;
1683 enum ExrPixelType current_pixel_type;
1684 1212 int channel_index = -1;
1685 int xsub, ysub;
1686
1687
2/2
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✓ Branch 1 taken 940 times.
 1212 if (strcmp(s->layer, "") != 0) {
1688
2/2
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✓ Branch 1 taken 122 times.
 272 if (strncmp(ch_gb.buffer, s->layer, strlen(s->layer)) == 0) {
1689 150 layer_match = 1;
1690 150 av_log(s->avctx, AV_LOG_INFO,
1691 "Channel match layer : %s.\n", ch_gb.buffer);
1692 150 ch_gb.buffer += strlen(s->layer);
1693
1/2
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✗ Branch 1 not taken.
 150 if (*ch_gb.buffer == '.')
1694 150 ch_gb.buffer++; /* skip dot if not given */
1695 } else {
1696 122 layer_match = 0;
1697 122 av_log(s->avctx, AV_LOG_INFO,
1698 "Channel doesn't match layer : %s.\n", ch_gb.buffer);
1699 }
1700 } else {
1701 940 layer_match = 1;
1702 }
1703
1704
2/2
✓ Branch 0 taken 1090 times.
✓ Branch 1 taken 122 times.
 1212 if (layer_match) { /* only search channel if the layer match is valid */
1705
2/2
✓ Branch 0 taken 938 times.
✓ Branch 1 taken 152 times.
 1090 if (strlen(ch_gb.buffer) == 1) {
1706 938 int ch_chr = av_toupper(*ch_gb.buffer);
1707
2/4
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✗ Branch 1 not taken.
✓ Branch 2 taken 938 times.
✗ Branch 3 not taken.
 938 if (ch_chr >= 'A' && ch_chr <= 'Z')
1708 938 s->has_channel |= M(ch_chr);
1709 938 av_log(s->avctx, AV_LOG_DEBUG, "%c\n", ch_chr);
1710 }
1711
1712
3/4
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✓ Branch 3 taken 836 times.
✗ Branch 4 not taken.
 1926 if (!av_strcasecmp(ch_gb.buffer, "R") ||
1713
1/2
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✓ Branch 2 taken 836 times.
 1672 !av_strcasecmp(ch_gb.buffer, "X") ||
1714 836 !av_strcasecmp(ch_gb.buffer, "U")) {
1715 254 channel_index = 0;
1716
3/4
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✗ Branch 3 not taken.
✓ Branch 4 taken 582 times.
 1418 } else if (!av_strcasecmp(ch_gb.buffer, "G") ||
1717 582 !av_strcasecmp(ch_gb.buffer, "V")) {
1718 254 channel_index = 1;
1719
2/2
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✓ Branch 2 taken 520 times.
 582 } else if (!av_strcasecmp(ch_gb.buffer, "Y")) {
1720 62 channel_index = 1;
1721
3/4
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✓ Branch 3 taken 266 times.
✗ Branch 4 not taken.
 786 } else if (!av_strcasecmp(ch_gb.buffer, "B") ||
1722
1/2
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 532 !av_strcasecmp(ch_gb.buffer, "Z") ||
1723 266 !av_strcasecmp(ch_gb.buffer, "W")) {
1724 254 channel_index = 2;
1725
2/2
✓ Branch 1 taken 114 times.
✓ Branch 2 taken 152 times.
 266 } else if (!av_strcasecmp(ch_gb.buffer, "A")) {
1726 114 channel_index = 3;
1727 } else {
1728 152 av_log(s->avctx, AV_LOG_WARNING,
1729 "Unsupported channel %.256s.\n", ch_gb.buffer);
1730 }
1731 }
1732
1733 /* skip until you get a 0 */
1734
3/4
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✗ Branch 2 not taken.
✓ Branch 3 taken 3644 times.
✓ Branch 4 taken 1212 times.
 9712 while (bytestream2_get_bytes_left(&ch_gb) > 0 &&
1735 4856 bytestream2_get_byte(&ch_gb))
1736 3644 continue;
1737
1738
1/2
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✓ Branch 2 taken 1212 times.
 1212 if (bytestream2_get_bytes_left(&ch_gb) < 4) {
1739 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header.\n");
1740 ✗ ret = AVERROR_INVALIDDATA;
1741 ✗ goto fail;
1742 }
1743
1744 1212 current_pixel_type = bytestream2_get_le32(&ch_gb);
1745
1/2
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✓ Branch 1 taken 1212 times.
 1212 if (current_pixel_type >= EXR_UNKNOWN) {
1746 ✗ avpriv_report_missing_feature(s->avctx, "Pixel type %d",
1747 current_pixel_type);
1748 ✗ ret = AVERROR_PATCHWELCOME;
1749 ✗ goto fail;
1750 }
1751
1752 1212 bytestream2_skip(&ch_gb, 4);
1753 1212 xsub = bytestream2_get_le32(&ch_gb);
1754 1212 ysub = bytestream2_get_le32(&ch_gb);
1755
1756
2/4
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✓ Branch 3 taken 1212 times.
 1212 if (xsub != 1 || ysub != 1) {
1757 ✗ avpriv_report_missing_feature(s->avctx,
1758 "Subsampling %dx%d",
1759 xsub, ysub);
1760 ✗ ret = AVERROR_PATCHWELCOME;
1761 ✗ goto fail;
1762 }
1763
1764
3/4
✓ Branch 0 taken 938 times.
✓ Branch 1 taken 274 times.
✓ Branch 2 taken 938 times.
✗ Branch 3 not taken.
 1212 if (channel_index >= 0 && s->channel_offsets[channel_index] == -1) { /* channel has not been previously assigned */
1765
2/2
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✓ Branch 1 taken 316 times.
 938 if (s->pixel_type != EXR_UNKNOWN &&
1766
1/2
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✓ Branch 1 taken 622 times.
 622 s->pixel_type != current_pixel_type) {
1767 ✗ av_log(s->avctx, AV_LOG_ERROR,
1768 "RGB channels not of the same depth.\n");
1769 ✗ ret = AVERROR_INVALIDDATA;
1770 ✗ goto fail;
1771 }
1772 938 s->pixel_type = current_pixel_type;
1773 938 s->channel_offsets[channel_index] = s->current_channel_offset;
1774
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 274 times.
 274 } else if (channel_index >= 0) {
1775 ✗ av_log(s->avctx, AV_LOG_WARNING,
1776 "Multiple channels with index %d.\n", channel_index);
1777 ✗ if (++dup_channels > 10) {
1778 ✗ ret = AVERROR_INVALIDDATA;
1779 ✗ goto fail;
1780 }
1781 }
1782
1783
1/2
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✓ Branch 1 taken 1212 times.
 1212 av_assert0(s->nb_channels < INT_MAX); // Impossible due to size of the bitstream
1784 1212 EXRChannel *new_channels = av_realloc_array(s->channels,
1785 1212 s->nb_channels + 1,
1786 sizeof(EXRChannel));
1787
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1212 times.
 1212 if (!new_channels) {
1788 ✗ ret = AVERROR(ENOMEM);
1789 ✗ goto fail;
1790 }
1791 1212 s->nb_channels ++;
1792 1212 s->channels = new_channels;
1793
1794 1212 channel = &s->channels[s->nb_channels - 1];
1795 1212 channel->pixel_type = current_pixel_type;
1796 1212 channel->xsub = xsub;
1797 1212 channel->ysub = ysub;
1798
1799
2/2
✓ Branch 0 taken 404 times.
✓ Branch 1 taken 808 times.
 1212 if (current_pixel_type == EXR_HALF) {
1800 404 s->current_channel_offset += 2;
1801 } else {/* Float or UINT32 */
1802 808 s->current_channel_offset += 4;
1803 }
1804 }
1805
2/2
✓ Branch 0 taken 254 times.
✓ Branch 1 taken 62 times.
 316 if (!((M('R') + M('G') + M('B')) & ~s->has_channel)) {
1806 254 s->is_luma = 0;
1807
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✓ Branch 1 taken 62 times.
 62 } else if (!((M('X') + M('Y') + M('Z')) & ~s->has_channel)) {
1808 ✗ s->is_luma = 0;
1809
1/2
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✓ Branch 1 taken 62 times.
 62 } else if (!((M('Y') + M('U') + M('V')) & ~s->has_channel)) {
1810 ✗ s->is_luma = 0;
1811
1/2
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✗ Branch 1 not taken.
 62 } else if (!((M('Y') ) & ~s->has_channel) &&
1812
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)) {
1813 62 s->is_luma = 1;
1814 } else {
1815 ✗ avpriv_request_sample(s->avctx, "Uncommon channel combination");
1816 ✗ ret = AVERROR_PATCHWELCOME;
1817 ✗ goto fail;
1818 }
1819
1820 /* Check if all channels are set with an offset or if the channels
1821 * are causing an overflow */
1822
2/2
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✓ Branch 1 taken 62 times.
 316 if (!s->is_luma) {/* if we expected to have at least 3 channels */
1823
1/2
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 254 if (FFMIN3(s->channel_offsets[0],
1824 s->channel_offsets[1],
1825 s->channel_offsets[2]) < 0) {
1826 ✗ if (s->channel_offsets[0] < 0)
1827 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing red channel.\n");
1828 ✗ if (s->channel_offsets[1] < 0)
1829 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing green channel.\n");
1830 ✗ if (s->channel_offsets[2] < 0)
1831 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing blue channel.\n");
1832 ✗ ret = AVERROR_INVALIDDATA;
1833 ✗ goto fail;
1834 }
1835 }
1836
1837 // skip one last byte and update main gb
1838 316 gb->buffer = ch_gb.buffer + 1;
1839 316 continue;
1840
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3448 times.
 3764 } else if ((var_size = check_header_variable(s, "dataWindow", "box2i",
1841 316 31)) >= 0) {
1842 int xmin, ymin, xmax, ymax;
1843
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1844 ✗ ret = AVERROR_INVALIDDATA;
1845 ✗ goto fail;
1846 }
1847
1848 316 xmin = bytestream2_get_le32(gb);
1849 316 ymin = bytestream2_get_le32(gb);
1850 316 xmax = bytestream2_get_le32(gb);
1851 316 ymax = bytestream2_get_le32(gb);
1852
1853
3/6
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✗ Branch 3 not taken.
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✗ Branch 5 not taken.
 316 if (xmin > xmax || ymin > ymax ||
1854
1/2
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✗ Branch 1 not taken.
 316 ymax == INT_MAX || xmax == INT_MAX ||
1855
1/2
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✗ Branch 1 not taken.
 316 (unsigned)xmax - xmin >= INT_MAX ||
1856
1/2
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✓ Branch 1 taken 316 times.
 316 (unsigned)ymax - ymin >= INT_MAX) {
1857 ✗ ret = AVERROR_INVALIDDATA;
1858 ✗ goto fail;
1859 }
1860 316 s->xmin = xmin;
1861 316 s->xmax = xmax;
1862 316 s->ymin = ymin;
1863 316 s->ymax = ymax;
1864 316 s->xdelta = (s->xmax - s->xmin) + 1;
1865 316 s->ydelta = (s->ymax - s->ymin) + 1;
1866
1867 316 continue;
1868
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 3132 times.
 3448 } else if ((var_size = check_header_variable(s, "displayWindow",
1869 316 "box2i", 34)) >= 0) {
1870 int32_t sx, sy, dx, dy;
1871
1872
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1873 ✗ ret = AVERROR_INVALIDDATA;
1874 ✗ goto fail;
1875 }
1876
1877 316 sx = bytestream2_get_le32(gb);
1878 316 sy = bytestream2_get_le32(gb);
1879 316 dx = bytestream2_get_le32(gb);
1880 316 dy = bytestream2_get_le32(gb);
1881
1882 316 s->w = (unsigned)dx - sx + 1;
1883 316 s->h = (unsigned)dy - sy + 1;
1884
1885 316 continue;
1886
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 2816 times.
 3132 } else if ((var_size = check_header_variable(s, "lineOrder",
1887 316 "lineOrder", 25)) >= 0) {
1888 int line_order;
1889
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1890 ✗ ret = AVERROR_INVALIDDATA;
1891 ✗ goto fail;
1892 }
1893
1894 316 line_order = bytestream2_get_byte(gb);
1895 316 av_log(s->avctx, AV_LOG_DEBUG, "line order: %d.\n", line_order);
1896
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (line_order > 2) {
1897 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown line order.\n");
1898 ✗ ret = AVERROR_INVALIDDATA;
1899 ✗ goto fail;
1900 }
1901
1902 316 continue;
1903
2/2
✓ Branch 1 taken 148 times.
✓ Branch 2 taken 2668 times.
 2816 } else if ((var_size = check_header_variable(s, "pixelAspectRatio",
1904 "float", 31)) >= 0) {
1905
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 148 times.
 148 if (!var_size) {
1906 ✗ ret = AVERROR_INVALIDDATA;
1907 ✗ goto fail;
1908 }
1909
1910 148 s->sar = bytestream2_get_le32(gb);
1911
1912 148 continue;
1913
2/2
✓ Branch 1 taken 316 times.
✓ Branch 2 taken 2352 times.
 2668 } else if ((var_size = check_header_variable(s, "compression",
1914 "compression", 29)) >= 0) {
1915
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (!var_size) {
1916 ✗ ret = AVERROR_INVALIDDATA;
1917 ✗ goto fail;
1918 }
1919
1920
1/2
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
 316 if (s->compression == EXR_UNKN)
1921 316 s->compression = bytestream2_get_byte(gb);
1922 else {
1923 ✗ bytestream2_skip(gb, 1);
1924 ✗ av_log(s->avctx, AV_LOG_WARNING,
1925 "Found more than one compression attribute.\n");
1926 }
1927
1928 316 continue;
1929
2/2
✓ Branch 1 taken 44 times.
✓ Branch 2 taken 2308 times.
 2352 } else if ((var_size = check_header_variable(s, "tiles",
1930 44 "tiledesc", 22)) >= 0) {
1931 uint8_t tileLevel;
1932
1933
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (!s->is_tile)
1934 ✗ av_log(s->avctx, AV_LOG_WARNING,
1935 "Found tile attribute and scanline flags. Exr will be interpreted as scanline.\n");
1936
1937 44 s->tile_attr.xSize = bytestream2_get_le32(gb);
1938 44 s->tile_attr.ySize = bytestream2_get_le32(gb);
1939
1940 44 tileLevel = bytestream2_get_byte(gb);
1941 44 s->tile_attr.level_mode = tileLevel & 0x0f;
1942 44 s->tile_attr.level_round = (tileLevel >> 4) & 0x0f;
1943
1944
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_mode >= EXR_TILE_LEVEL_UNKNOWN) {
1945 ✗ avpriv_report_missing_feature(s->avctx, "Tile level mode %d",
1946 ✗ s->tile_attr.level_mode);
1947 ✗ ret = AVERROR_PATCHWELCOME;
1948 ✗ goto fail;
1949 }
1950
1951
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 44 times.
 44 if (s->tile_attr.level_round >= EXR_TILE_ROUND_UNKNOWN) {
1952 ✗ avpriv_report_missing_feature(s->avctx, "Tile level round %d",
1953 ✗ s->tile_attr.level_round);
1954 ✗ ret = AVERROR_PATCHWELCOME;
1955 ✗ goto fail;
1956 }
1957
1958 44 continue;
1959
2/2
✓ Branch 1 taken 184 times.
✓ Branch 2 taken 2124 times.
 2308 } else if ((var_size = check_header_variable(s, "writer",
1960 184 "string", 1)) >= 0) {
1961 184 uint8_t key[256] = { 0 };
1962
1963 184 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
1964 184 av_dict_set(&metadata, "writer", key, 0);
1965
1966 184 continue;
1967
2/2
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✓ Branch 2 taken 1940 times.
 2124 } else if ((var_size = check_header_variable(s, "framesPerSecond",
1968 "rational", 33)) >= 0) {
1969
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 184 times.
 184 if (!var_size) {
1970 ✗ ret = AVERROR_INVALIDDATA;
1971 ✗ goto fail;
1972 }
1973
1974 184 s->avctx->framerate.num = bytestream2_get_le32(gb);
1975 184 s->avctx->framerate.den = bytestream2_get_le32(gb);
1976
1977 184 continue;
1978
2/2
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 1932 times.
 1940 } else if ((var_size = check_header_variable(s, "chunkCount",
1979 "int", 23)) >= 0) {
1980
1981 8 s->chunk_count = bytestream2_get_le32(gb);
1982
1983 8 continue;
1984
2/2
✓ Branch 1 taken 18 times.
✓ Branch 2 taken 1914 times.
 1932 } else if ((var_size = check_header_variable(s, "type",
1985 18 "string", 16)) >= 0) {
1986 18 uint8_t key[256] = { 0 };
1987
1988 18 bytestream2_get_buffer(gb, key, FFMIN(sizeof(key) - 1, var_size));
1989
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 10 times.
 18 if (strncmp("scanlineimage", key, var_size) &&
1990
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
 8 strncmp("tiledimage", key, var_size)) {
1991 ✗ ret = AVERROR_PATCHWELCOME;
1992 ✗ goto fail;
1993 }
1994
1995 18 continue;
1996
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 } else if ((var_size = check_header_variable(s, "preview",
1997 ✗ "preview", 16)) >= 0) {
1998 ✗ uint32_t pw = bytestream2_get_le32(gb);
1999 ✗ uint32_t ph = bytestream2_get_le32(gb);
2000 ✗ uint64_t psize = pw * (uint64_t)ph;
2001 ✗ if (psize > INT64_MAX / 4) {
2002 ✗ ret = AVERROR_INVALIDDATA;
2003 ✗ goto fail;
2004 }
2005 ✗ psize *= 4;
2006
2007 ✗ if ((int64_t)psize >= bytestream2_get_bytes_left(gb)) {
2008 ✗ ret = AVERROR_INVALIDDATA;
2009 ✗ goto fail;
2010 }
2011
2012 ✗ bytestream2_skip(gb, psize);
2013
2014 ✗ continue;
2015 }
2016
2017 // Check if there are enough bytes for a header
2018
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1914 times.
 1914 if (bytestream2_get_bytes_left(gb) <= 9) {
2019 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete header\n");
2020 ✗ ret = AVERROR_INVALIDDATA;
2021 ✗ goto fail;
2022 }
2023
2024 // Process unknown variables
2025 {
2026 1914 uint8_t name[256] = { 0 };
2027 1914 uint8_t type[256] = { 0 };
2028 1914 uint8_t value[8192] = { 0 };
2029 1914 int i = 0, size;
2030
2031
2/2
✓ Branch 1 taken 26926 times.
✓ Branch 2 taken 1914 times.
 57680 while (bytestream2_get_bytes_left(gb) > 0 &&
2032
2/4
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✗ Branch 1 not taken.
✓ Branch 3 taken 26926 times.
✗ Branch 4 not taken.
 55766 bytestream2_peek_byte(gb) && i < 255) {
2033 26926 name[i++] = bytestream2_get_byte(gb);
2034 }
2035
2036 1914 bytestream2_skip(gb, 1);
2037 1914 i = 0;
2038
2/2
✓ Branch 1 taken 8774 times.
✓ Branch 2 taken 1914 times.
 21376 while (bytestream2_get_bytes_left(gb) > 0 &&
2039
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) {
2040 8774 type[i++] = bytestream2_get_byte(gb);
2041 }
2042 1914 bytestream2_skip(gb, 1);
2043 1914 size = bytestream2_get_le32(gb);
2044
2045 1914 bytestream2_get_buffer(gb, value, FFMIN(sizeof(value) - 1, size));
2046
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1914 times.
 1914 if (size > sizeof(value) - 1)
2047 ✗ bytestream2_skip(gb, size - (sizeof(value) - 1));
2048
2/2
✓ Branch 0 taken 160 times.
✓ Branch 1 taken 1754 times.
 1914 if (!strcmp(type, "string"))
2049 160 av_dict_set(&metadata, name, value, 0);
2050 }
2051 }
2052
2053
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 if (s->compression == EXR_UNKN) {
2054 ✗ av_log(s->avctx, AV_LOG_ERROR, "Missing compression attribute.\n");
2055 ✗ ret = AVERROR_INVALIDDATA;
2056 ✗ goto fail;
2057 }
2058
2059
2/2
✓ Branch 0 taken 44 times.
✓ Branch 1 taken 272 times.
 316 if (s->is_tile) {
2060
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) {
2061 ✗ av_log(s->avctx, AV_LOG_ERROR, "Invalid tile attribute.\n");
2062 ✗ ret = AVERROR_INVALIDDATA;
2063 ✗ goto fail;
2064 }
2065 }
2066
2067
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if (bytestream2_get_bytes_left(gb) <= 0) {
2068 ✗ av_log(s->avctx, AV_LOG_ERROR, "Incomplete frame.\n");
2069 ✗ ret = AVERROR_INVALIDDATA;
2070 ✗ goto fail;
2071 }
2072
2073 316 frame->metadata = metadata;
2074
2075 // aaand we are done
2076 316 bytestream2_skip(gb, 1);
2077 316 return 0;
2078 ✗ fail:
2079 ✗ av_dict_free(&metadata);
2080 ✗ return ret;
2081 }
2082
2083 316 static int decode_frame(AVCodecContext *avctx, AVFrame *picture,
2084 int *got_frame, AVPacket *avpkt)
2085 {
2086 316 EXRContext *s = avctx->priv_data;
2087 316 GetByteContext *gb = &s->gb;
2088 uint8_t *ptr;
2089
2090 int i, y, ret, ymax;
2091 int planes;
2092 int out_line_size;
2093 int nb_blocks; /* nb scanline or nb tile */
2094 uint64_t start_offset_table;
2095 uint64_t start_next_scanline;
2096
2097 316 bytestream2_init(gb, avpkt->data, avpkt->size);
2098
2099
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = decode_header(s, picture)) < 0)
2100 ✗ return ret;
2101
2102
1/2
✓ Branch 0 taken 316 times.
✗ Branch 1 not taken.
 316 if (s->compression == EXR_DWAA ||
2103
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 316 times.
 316 s->compression == EXR_DWAB) {
2104 ✗ for (int i = 0; i<s->nb_channels; i++) {
2105 ✗ EXRChannel *channel = &s->channels[i];
2106 ✗ if (channel->pixel_type != s->pixel_type) {
2107 ✗ avpriv_request_sample(s->avctx, "mixed pixel type DWA");
2108 ✗ return AVERROR_PATCHWELCOME;
2109 }
2110 }
2111 }
2112
2113
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) {
2114 88 case EXR_HALF:
2115
2/2
✓ Branch 0 taken 26 times.
✓ Branch 1 taken 62 times.
 88 if (s->channel_offsets[3] >= 0) {
2116
2/2
✓ Branch 0 taken 24 times.
✓ Branch 1 taken 2 times.
 26 if (!s->is_luma) {
2117 24 avctx->pix_fmt = AV_PIX_FMT_GBRAPF16;
2118 } else {
2119 2 avctx->pix_fmt = AV_PIX_FMT_YAF16;
2120 }
2121 } else {
2122
2/2
✓ Branch 0 taken 58 times.
✓ Branch 1 taken 4 times.
 62 if (!s->is_luma) {
2123 58 avctx->pix_fmt = AV_PIX_FMT_GBRPF16;
2124 } else {
2125 4 avctx->pix_fmt = AV_PIX_FMT_GRAYF16;
2126 }
2127 }
2128 88 break;
2129 218 case EXR_FLOAT:
2130
2/2
✓ Branch 0 taken 88 times.
✓ Branch 1 taken 130 times.
 218 if (s->channel_offsets[3] >= 0) {
2131
1/2
✓ Branch 0 taken 88 times.
✗ Branch 1 not taken.
 88 if (!s->is_luma) {
2132 88 avctx->pix_fmt = AV_PIX_FMT_GBRAPF32;
2133 } else {
2134 ✗ avctx->pix_fmt = AV_PIX_FMT_YAF32;
2135 }
2136 } else {
2137
2/2
✓ Branch 0 taken 74 times.
✓ Branch 1 taken 56 times.
 130 if (!s->is_luma) {
2138 74 avctx->pix_fmt = AV_PIX_FMT_GBRPF32;
2139 } else {
2140 56 avctx->pix_fmt = AV_PIX_FMT_GRAYF32;
2141 }
2142 }
2143 218 break;
2144 10 case EXR_UINT:
2145
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
 10 if (s->channel_offsets[3] >= 0) {
2146 ✗ if (!s->is_luma) {
2147 ✗ avctx->pix_fmt = AV_PIX_FMT_RGBA64;
2148 } else {
2149 ✗ avctx->pix_fmt = AV_PIX_FMT_YA16;
2150 }
2151 } else {
2152
1/2
✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
 10 if (!s->is_luma) {
2153 10 avctx->pix_fmt = AV_PIX_FMT_RGB48;
2154 } else {
2155 ✗ avctx->pix_fmt = AV_PIX_FMT_GRAY16;
2156 }
2157 }
2158 10 break;
2159 ✗ default:
2160 ✗ av_log(avctx, AV_LOG_ERROR, "Missing channel list.\n");
2161 ✗ return AVERROR_INVALIDDATA;
2162 }
2163
2164
2/2
✓ Branch 0 taken 114 times.
✓ Branch 1 taken 202 times.
 316 if (s->channel_offsets[3] >= 0)
2165 114 avctx->alpha_mode = AVALPHA_MODE_PREMULTIPLIED;
2166
2167 316 avctx->color_trc = AVCOL_TRC_LINEAR;
2168
2169
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) {
2170 174 case EXR_RAW:
2171 case EXR_RLE:
2172 case EXR_ZIP1:
2173 174 s->scan_lines_per_block = 1;
2174 174 break;
2175 92 case EXR_PXR24:
2176 case EXR_ZIP16:
2177 92 s->scan_lines_per_block = 16;
2178 92 break;
2179 50 case EXR_PIZ:
2180 case EXR_B44:
2181 case EXR_B44A:
2182 case EXR_DWAA:
2183 50 s->scan_lines_per_block = 32;
2184 50 break;
2185 ✗ case EXR_DWAB:
2186 ✗ s->scan_lines_per_block = 256;
2187 ✗ break;
2188 ✗ default:
2189 ✗ avpriv_report_missing_feature(avctx, "Compression %d", s->compression);
2190 ✗ return AVERROR_PATCHWELCOME;
2191 }
2192
2193 /* Verify the xmin, xmax, ymin and ymax before setting the actual image size.
2194 * It's possible for the data window can larger or outside the display window */
2195
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 ||
2196
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 316 times.
 316 s->ydelta == 0xFFFFFFFF || s->xdelta == 0xFFFFFFFF) {
2197 ✗ av_log(avctx, AV_LOG_ERROR, "Wrong or missing size information.\n");
2198 ✗ return AVERROR_INVALIDDATA;
2199 }
2200
2201
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 316 times.
 316 if ((ret = ff_set_dimensions(avctx, s->w, s->h)) < 0)
2202 ✗ return ret;
2203
2204 316 ff_set_sar(s->avctx, av_d2q(av_int2float(s->sar), 255));
2205
2206
2/2
✓ Branch 0 taken 86 times.
✓ Branch 1 taken 230 times.
 316 if (avctx->skip_frame >= AVDISCARD_ALL)
2207 86 return avpkt->size;
2208
2209 230 s->desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2210
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 230 times.
 230 if (!s->desc)
2211 ✗ return AVERROR_INVALIDDATA;
2212
2213 230 planes = av_pix_fmt_count_planes(avctx->pix_fmt);
2214 230 out_line_size = avctx->width * s->desc->comp[0].step;
2215
2216
2/2
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 208 times.
 230 if (s->is_tile) {
2217
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)
2218 ✗ return AVERROR_INVALIDDATA;
2219 22 nb_blocks = ((s->xdelta + s->tile_attr.xSize - 1) / s->tile_attr.xSize) *
2220 22 ((s->ydelta + s->tile_attr.ySize - 1) / s->tile_attr.ySize);
2221 } else { /* scanline */
2222 208 nb_blocks = (s->ydelta + s->scan_lines_per_block - 1) /
2223 208 s->scan_lines_per_block;
2224 }
2225
2226
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 230 times.
 230 if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
2227 ✗ return ret;
2228
2229
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 230 times.
 230 if (bytestream2_get_bytes_left(gb)/8 < nb_blocks)
2230 ✗ return AVERROR_INVALIDDATA;
2231
2232
1/2
✓ Branch 0 taken 230 times.
✗ Branch 1 not taken.
 230 if (avctx->max_pixels) {
2233 460 int64_t block_pixels = s->is_tile
2234 22 ? (int64_t)FFMIN(s->tile_attr.xSize, s->xdelta) *
2235 22 FFMIN(s->tile_attr.ySize, s->ydelta)
2236
2/2
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 208 times.
 230 : (int64_t)s->xdelta *
2237 208 FFMIN(s->scan_lines_per_block, s->ydelta);
2238
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 230 times.
 230 if (nb_blocks > avctx->max_pixels / FFMAX(block_pixels, 1))
2239 ✗ return AVERROR_INVALIDDATA;
2240 }
2241
2242 // check offset table and recreate it if need
2243
4/4
✓ Branch 0 taken 208 times.
✓ Branch 1 taken 22 times.
✓ Branch 3 taken 1 times.
✓ Branch 4 taken 207 times.
 230 if (!s->is_tile && bytestream2_peek_le64(gb) == 0) {
2244 PutByteContext offset_table_writer;
2245
2246 1 av_log(s->avctx, AV_LOG_DEBUG, "recreating invalid scanline offset table\n");
2247
2248 1 s->offset_table = av_realloc_f(s->offset_table, nb_blocks, 8);
2249
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!s->offset_table)
2250 ✗ return AVERROR(ENOMEM);
2251
2252 1 start_offset_table = bytestream2_tell(gb);
2253 1 start_next_scanline = start_offset_table + nb_blocks * 8;
2254 1 bytestream2_init_writer(&offset_table_writer, s->offset_table, nb_blocks * 8);
2255
2256
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 1 times.
 9 for (y = 0; y < nb_blocks; y++) {
2257 /* write offset of prev scanline in offset table */
2258 8 bytestream2_put_le64(&offset_table_writer, start_next_scanline);
2259
2260 /* get len of next scanline */
2261 8 bytestream2_seek(gb, start_next_scanline + 4, SEEK_SET);/* skip line number */
2262 8 start_next_scanline += (bytestream2_get_le32(gb) + 8);
2263 }
2264 1 bytestream2_init(gb, s->offset_table, nb_blocks * 8);
2265 }
2266
2267 // save pointer we are going to use in decode_block
2268 230 s->buf = avpkt->data;
2269 230 s->buf_size = avpkt->size;
2270
2271 // Zero out the start if ymin is not 0
2272
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 880 for (i = 0; i < planes; i++) {
2273 650 ptr = picture->data[i];
2274
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 890 for (y = 0; y < FFMIN(s->ymin, s->h); y++) {
2275 240 memset(ptr, 0, out_line_size);
2276 240 ptr += picture->linesize[i];
2277 }
2278 }
2279
2280 230 s->picture = picture;
2281
2282 230 avctx->execute2(avctx, decode_block, s->thread_data, NULL, nb_blocks);
2283
2284 230 ymax = FFMAX(0, s->ymax + 1);
2285 // Zero out the end if ymax+1 is not h
2286
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 230 if (ymax < avctx->height)
2287
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 16 for (i = 0; i < planes; i++) {
2288 12 ptr = picture->data[i] + (ymax * picture->linesize[i]);
2289
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 2784 for (y = ymax; y < avctx->height; y++) {
2290 2772 memset(ptr, 0, out_line_size);
2291 2772 ptr += picture->linesize[i];
2292 }
2293 }
2294
2295 230 picture->pict_type = AV_PICTURE_TYPE_I;
2296 230 *got_frame = 1;
2297
2298 230 return avpkt->size;
2299 }
2300
2301 172 static av_cold int decode_init(AVCodecContext *avctx)
2302 {
2303 172 EXRContext *s = avctx->priv_data;
2304
2305 172 ff_init_float2half_tables(&s->f2h_tables);
2306 172 ff_init_half2float_tables(&s->h2f_tables);
2307
2308 172 s->avctx = avctx;
2309
2310 172 ff_exrdsp_init(&s->dsp);
2311
2312 #if HAVE_BIGENDIAN
2313 ff_bswapdsp_init(&s->bbdsp);
2314 #endif
2315
2316 // allocate thread data, used for non EXR_RAW compression types
2317 172 s->thread_data = av_calloc(avctx->thread_count, sizeof(*s->thread_data));
2318
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 172 if (!s->thread_data)
2319 ✗ return AVERROR(ENOMEM);
2320
2321 172 return 0;
2322 }
2323
2324 172 static av_cold int decode_end(AVCodecContext *avctx)
2325 {
2326 172 EXRContext *s = avctx->priv_data;
2327 int i;
2328
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 344 for (i = 0; i < avctx->thread_count; i++) {
2329 172 EXRThreadData *td = &s->thread_data[i];
2330 172 av_freep(&td->uncompressed_data);
2331 172 av_freep(&td->tmp);
2332 172 av_freep(&td->bitmap);
2333 172 av_freep(&td->lut);
2334 172 av_freep(&td->he);
2335 172 av_freep(&td->freq);
2336 172 av_freep(&td->ac_data);
2337 172 av_freep(&td->dc_data);
2338 172 av_freep(&td->rle_data);
2339 172 av_freep(&td->rle_raw_data);
2340 172 ff_vlc_free(&td->vlc);
2341 }
2342
2343 172 av_freep(&s->thread_data);
2344 172 av_freep(&s->channels);
2345 172 av_freep(&s->offset_table);
2346
2347 172 return 0;
2348 }
2349
2350 #define OFFSET(x) offsetof(EXRContext, x)
2351 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
2352 static const AVOption options[] = {
2353 { "layer", "Set the decoding layer", OFFSET(layer),
2354 AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
2355 { "part", "Set the decoding part", OFFSET(selected_part),
2356 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
2357 { NULL },
2358 };
2359
2360 static const AVClass exr_class = {
2361 .class_name = "EXR",
2362 .item_name = av_default_item_name,
2363 .option = options,
2364 .version = LIBAVUTIL_VERSION_INT,
2365 };
2366
2367 const FFCodec ff_exr_decoder = {
2368 .p.name = "exr",
2369 CODEC_LONG_NAME("OpenEXR image"),
2370 .p.type = AVMEDIA_TYPE_VIDEO,
2371 .p.id = AV_CODEC_ID_EXR,
2372 .priv_data_size = sizeof(EXRContext),
2373 .init = decode_init,
2374 .close = decode_end,
2375 FF_CODEC_DECODE_CB(decode_frame),
2376 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
2377 AV_CODEC_CAP_SLICE_THREADS,
2378 .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2379 .p.priv_class = &exr_class,
2380 };
2381