FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/dpx.c
Date: 2024-04-20 14:10:07
Exec Total Coverage
Lines: 239 469 51.0%
Functions: 4 6 66.7%
Branches: 108 248 43.5%

Line Branch Exec Source
1 /*
2 * DPX (.dpx) image decoder
3 * Copyright (c) 2009 Jimmy Christensen
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/avstring.h"
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/intfloat.h"
25 #include "libavutil/imgutils.h"
26 #include "libavutil/timecode.h"
27 #include "avcodec.h"
28 #include "codec_internal.h"
29 #include "decode.h"
30
31 enum DPX_TRC {
32 DPX_TRC_USER_DEFINED = 0,
33 DPX_TRC_PRINTING_DENSITY = 1,
34 DPX_TRC_LINEAR = 2,
35 DPX_TRC_LOGARITHMIC = 3,
36 DPX_TRC_UNSPECIFIED_VIDEO = 4,
37 DPX_TRC_SMPTE_274 = 5,
38 DPX_TRC_ITU_R_709_4 = 6,
39 DPX_TRC_ITU_R_601_625 = 7,
40 DPX_TRC_ITU_R_601_525 = 8,
41 DPX_TRC_SMPTE_170 = 9,
42 DPX_TRC_ITU_R_624_4_PAL = 10,
43 DPX_TRC_Z_LINEAR = 11,
44 DPX_TRC_Z_HOMOGENEOUS = 12,
45 };
46
47 enum DPX_COL_SPEC {
48 DPX_COL_SPEC_USER_DEFINED = 0,
49 DPX_COL_SPEC_PRINTING_DENSITY = 1,
50 /* 2 = N/A */
51 /* 3 = N/A */
52 DPX_COL_SPEC_UNSPECIFIED_VIDEO = 4,
53 DPX_COL_SPEC_SMPTE_274 = 5,
54 DPX_COL_SPEC_ITU_R_709_4 = 6,
55 DPX_COL_SPEC_ITU_R_601_625 = 7,
56 DPX_COL_SPEC_ITU_R_601_525 = 8,
57 DPX_COL_SPEC_SMPTE_170 = 9,
58 DPX_COL_SPEC_ITU_R_624_4_PAL = 10,
59 /* 11 = N/A */
60 /* 12 = N/A */
61 };
62
63 4257978 static unsigned int read16(const uint8_t **ptr, int is_big)
64 {
65 unsigned int temp;
66
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4257978 if (is_big) {
67 4 temp = AV_RB16(*ptr);
68 } else {
69 4257974 temp = AV_RL16(*ptr);
70 }
71 4257978 *ptr += 2;
72 4257978 return temp;
73 }
74
75 3044637 static unsigned int read32(const uint8_t **ptr, int is_big)
76 {
77 unsigned int temp;
78
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3044637 if (is_big) {
79 22 temp = AV_RB32(*ptr);
80 } else {
81 3044615 temp = AV_RL32(*ptr);
82 }
83 3044637 *ptr += 4;
84 3044637 return temp;
85 }
86
87 static uint16_t read10in32_gray(const uint8_t **ptr, uint32_t *lbuf,
88 int *n_datum, int is_big, int shift)
89 {
90 uint16_t temp;
91
92 if (*n_datum)
93 (*n_datum)--;
94 else {
95 *lbuf = read32(ptr, is_big);
96 *n_datum = 2;
97 }
98
99 temp = *lbuf >> shift & 0x3FF;
100 *lbuf = *lbuf >> 10;
101
102 return temp;
103 }
104
105 9131904 static uint16_t read10in32(const uint8_t **ptr, uint32_t *lbuf,
106 int *n_datum, int is_big, int shift)
107 {
108
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9131904 if (*n_datum)
109 6087936 (*n_datum)--;
110 else {
111 3043968 *lbuf = read32(ptr, is_big);
112 3043968 *n_datum = 2;
113 }
114
115 9131904 *lbuf = *lbuf << 10 | *lbuf >> shift & 0x3FFFFF;
116
117 9131904 return *lbuf & 0x3FF;
118 }
119
120 static uint16_t read12in32(const uint8_t **ptr, uint32_t *lbuf,
121 int *n_datum, int is_big)
122 {
123 if (*n_datum)
124 (*n_datum)--;
125 else {
126 *lbuf = read32(ptr, is_big);
127 *n_datum = 7;
128 }
129
130 switch (*n_datum){
131 case 7: return *lbuf & 0xFFF;
132 case 6: return (*lbuf >> 12) & 0xFFF;
133 case 5: {
134 uint32_t c = *lbuf >> 24;
135 *lbuf = read32(ptr, is_big);
136 c |= *lbuf << 8;
137 return c & 0xFFF;
138 }
139 case 4: return (*lbuf >> 4) & 0xFFF;
140 case 3: return (*lbuf >> 16) & 0xFFF;
141 case 2: {
142 uint32_t c = *lbuf >> 28;
143 *lbuf = read32(ptr, is_big);
144 c |= *lbuf << 4;
145 return c & 0xFFF;
146 }
147 case 1: return (*lbuf >> 8) & 0xFFF;
148 default: return *lbuf >> 20;
149 }
150 }
151
152 93 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
153 int *got_frame, AVPacket *avpkt)
154 {
155 93 const uint8_t *buf = avpkt->data;
156 93 int buf_size = avpkt->size;
157 uint8_t *ptr[AV_NUM_DATA_POINTERS];
158 93 uint32_t header_version, version = 0;
159 93 char creator[101] = { 0 };
160 93 char input_device[33] = { 0 };
161
162 unsigned int offset;
163 int magic_num, endian;
164 int x, y, stride, i, j, ret;
165 int w, h, bits_per_color, descriptor, elements, packing;
166 int yuv, color_trc, color_spec;
167 93 int encoding, need_align = 0, unpadded_10bit = 0;
168
169 93 unsigned int rgbBuffer = 0;
170 93 int n_datum = 0;
171
172
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93 if (avpkt->size <= 1634) {
173 av_log(avctx, AV_LOG_ERROR, "Packet too small for DPX header\n");
174 return AVERROR_INVALIDDATA;
175 }
176
177 93 magic_num = AV_RB32(buf);
178 93 buf += 4;
179
180 /* Check if the files "magic number" is "SDPX" which means it uses
181 * big-endian or XPDS which is for little-endian files */
182
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93 if (magic_num == AV_RL32("SDPX")) {
183 91 endian = 0;
184
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2 } else if (magic_num == AV_RB32("SDPX")) {
185 2 endian = 1;
186 } else {
187 av_log(avctx, AV_LOG_ERROR, "DPX marker not found\n");
188 return AVERROR_INVALIDDATA;
189 }
190
191 93 offset = read32(&buf, endian);
192
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93 if (avpkt->size <= offset) {
193 av_log(avctx, AV_LOG_ERROR, "Invalid data start offset\n");
194 return AVERROR_INVALIDDATA;
195 }
196
197 93 header_version = read32(&buf, 0);
198
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93 if (header_version == MKTAG('V','1','.','0'))
199 89 version = 1;
200
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93 if (header_version == MKTAG('V','2','.','0'))
201 4 version = 2;
202
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93 if (!version)
203 av_log(avctx, AV_LOG_WARNING, "Unknown header format version %s.\n",
204 av_fourcc2str(header_version));
205
206 // Check encryption
207 93 buf = avpkt->data + 660;
208 93 ret = read32(&buf, endian);
209
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93 if (ret != 0xFFFFFFFF) {
210 avpriv_report_missing_feature(avctx, "Encryption");
211 av_log(avctx, AV_LOG_WARNING, "The image is encrypted and may "
212 "not properly decode.\n");
213 }
214
215 // Need to end in 0x304 offset from start of file
216 93 buf = avpkt->data + 0x304;
217 93 w = read32(&buf, endian);
218 93 h = read32(&buf, endian);
219
220
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93 if ((ret = ff_set_dimensions(avctx, w, h)) < 0)
221 return ret;
222
223 // Need to end in 0x320 to read the descriptor
224 93 buf += 20;
225 93 descriptor = buf[0];
226 93 color_trc = buf[1];
227 93 color_spec = buf[2];
228
229 // Need to end in 0x323 to read the bits per color
230 93 buf += 3;
231 93 avctx->bits_per_raw_sample =
232 93 bits_per_color = buf[0];
233 93 buf++;
234 93 packing = read16(&buf, endian);
235 93 encoding = read16(&buf, endian);
236
237
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93 if (encoding) {
238 avpriv_report_missing_feature(avctx, "Encoding %d", encoding);
239 return AVERROR_PATCHWELCOME;
240 }
241
242
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93 if (bits_per_color > 31)
243 return AVERROR_INVALIDDATA;
244
245 93 buf += 820;
246 93 avctx->sample_aspect_ratio.num = read32(&buf, endian);
247 93 avctx->sample_aspect_ratio.den = read32(&buf, endian);
248
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93 if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0)
249 2 av_reduce(&avctx->sample_aspect_ratio.num, &avctx->sample_aspect_ratio.den,
250 2 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den,
251 0x10000);
252 else
253 91 avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
254
255 /* preferred frame rate from Motion-picture film header */
256
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93 if (offset >= 1724 + 4) {
257 4 buf = avpkt->data + 1724;
258 4 i = read32(&buf, endian);
259
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4 if(i && i != 0xFFFFFFFF) {
260 2 AVRational q = av_d2q(av_int2float(i), 4096);
261
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2 if (q.num > 0 && q.den > 0)
262 2 avctx->framerate = q;
263 }
264 }
265
266 /* alternative frame rate from television header */
267
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93 if (offset >= 1940 + 4 &&
268
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4 !(avctx->framerate.num && avctx->framerate.den)) {
269 2 buf = avpkt->data + 1940;
270 2 i = read32(&buf, endian);
271
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2 if(i && i != 0xFFFFFFFF) {
272 AVRational q = av_d2q(av_int2float(i), 4096);
273 if (q.num > 0 && q.den > 0)
274 avctx->framerate = q;
275 }
276 }
277
278 /* SMPTE TC from television header */
279
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93 if (offset >= 1920 + 4) {
280 uint32_t tc;
281 uint32_t *tc_sd;
282 char tcbuf[AV_TIMECODE_STR_SIZE];
283
284 4 buf = avpkt->data + 1920;
285 // read32 to native endian, av_bswap32 to opposite of native for
286 // compatibility with av_timecode_make_smpte_tc_string2 etc
287 4 tc = av_bswap32(read32(&buf, endian));
288
289
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4 if (i != 0xFFFFFFFF) {
290 AVFrameSideData *tcside;
291 4 ret = ff_frame_new_side_data(avctx, p, AV_FRAME_DATA_S12M_TIMECODE,
292 sizeof(uint32_t) * 4, &tcside);
293
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4 if (ret < 0)
294 return ret;
295
296
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4 if (tcside) {
297 4 tc_sd = (uint32_t*)tcside->data;
298 4 tc_sd[0] = 1;
299 4 tc_sd[1] = tc;
300
301 4 av_timecode_make_smpte_tc_string2(tcbuf, avctx->framerate,
302 4 tc_sd[1], 0, 0);
303 4 av_dict_set(&p->metadata, "timecode", tcbuf, 0);
304 }
305 }
306 }
307
308 /* color range from television header */
309
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93 if (offset >= 1964 + 4) {
310 4 buf = avpkt->data + 1952;
311 4 i = read32(&buf, endian);
312
313 4 buf = avpkt->data + 1964;
314 4 j = read32(&buf, endian);
315
316
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4 if (i != 0xFFFFFFFF && j != 0xFFFFFFFF) {
317 float minCV, maxCV;
318 4 minCV = av_int2float(i);
319 4 maxCV = av_int2float(j);
320
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4 if (bits_per_color >= 1 &&
321
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4 minCV == 0.0f && maxCV == ((1U<<bits_per_color) - 1)) {
322 2 avctx->color_range = AVCOL_RANGE_JPEG;
323
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2 } else if (bits_per_color >= 8 &&
324
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2 minCV == (1 <<(bits_per_color - 4)) &&
325 maxCV == (235<<(bits_per_color - 8))) {
326 avctx->color_range = AVCOL_RANGE_MPEG;
327 }
328 }
329 }
330
331
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93 switch (descriptor) {
332 case 1: // R
333 case 2: // G
334 case 3: // B
335 case 4: // A
336 case 6: // Y
337 elements = 1;
338 yuv = 1;
339 break;
340 79 case 50: // RGB
341 79 elements = 3;
342 79 yuv = 0;
343 79 break;
344 14 case 52: // ABGR
345 case 51: // RGBA
346 14 elements = 4;
347 14 yuv = 0;
348 14 break;
349 case 100: // UYVY422
350 elements = 2;
351 yuv = 1;
352 break;
353 case 102: // UYV444
354 elements = 3;
355 yuv = 1;
356 break;
357 case 103: // UYVA4444
358 elements = 4;
359 yuv = 1;
360 break;
361 default:
362 avpriv_report_missing_feature(avctx, "Descriptor %d", descriptor);
363 return AVERROR_PATCHWELCOME;
364 }
365
366
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93 switch (bits_per_color) {
367 19 case 8:
368 19 stride = avctx->width * elements;
369 19 break;
370 30 case 10:
371
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30 if (!packing) {
372 av_log(avctx, AV_LOG_ERROR, "Packing to 32bit required\n");
373 return -1;
374 }
375 30 stride = (avctx->width * elements + 2) / 3 * 4;
376 30 break;
377 14 case 12:
378 14 stride = avctx->width * elements;
379
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14 if (packing) {
380 14 stride *= 2;
381 } else {
382 stride *= 3;
383 if (stride % 8) {
384 stride /= 8;
385 stride++;
386 stride *= 8;
387 }
388 stride /= 2;
389 }
390 14 break;
391 30 case 16:
392 30 stride = 2 * avctx->width * elements;
393 30 break;
394 case 32:
395 stride = 4 * avctx->width * elements;
396 break;
397 case 1:
398 case 64:
399 avpriv_report_missing_feature(avctx, "Depth %d", bits_per_color);
400 return AVERROR_PATCHWELCOME;
401 default:
402 return AVERROR_INVALIDDATA;
403 }
404
405
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93 switch (color_trc) {
406 89 case DPX_TRC_LINEAR:
407 89 avctx->color_trc = AVCOL_TRC_LINEAR;
408 89 break;
409 case DPX_TRC_SMPTE_274:
410 case DPX_TRC_ITU_R_709_4:
411 avctx->color_trc = AVCOL_TRC_BT709;
412 break;
413 case DPX_TRC_ITU_R_601_625:
414 case DPX_TRC_ITU_R_601_525:
415 case DPX_TRC_SMPTE_170:
416 avctx->color_trc = AVCOL_TRC_SMPTE170M;
417 break;
418 case DPX_TRC_ITU_R_624_4_PAL:
419 avctx->color_trc = AVCOL_TRC_GAMMA28;
420 break;
421 2 case DPX_TRC_USER_DEFINED:
422 case DPX_TRC_UNSPECIFIED_VIDEO:
423 /* Nothing to do */
424 2 break;
425 2 default:
426 2 av_log(avctx, AV_LOG_VERBOSE, "Cannot map DPX transfer characteristic "
427 "%d to color_trc.\n", color_trc);
428 2 break;
429 }
430
431
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93 switch (color_spec) {
432 2 case DPX_COL_SPEC_SMPTE_274:
433 case DPX_COL_SPEC_ITU_R_709_4:
434 2 avctx->color_primaries = AVCOL_PRI_BT709;
435 2 break;
436 case DPX_COL_SPEC_ITU_R_601_625:
437 case DPX_COL_SPEC_ITU_R_624_4_PAL:
438 avctx->color_primaries = AVCOL_PRI_BT470BG;
439 break;
440 case DPX_COL_SPEC_ITU_R_601_525:
441 case DPX_COL_SPEC_SMPTE_170:
442 avctx->color_primaries = AVCOL_PRI_SMPTE170M;
443 break;
444 2 case DPX_COL_SPEC_USER_DEFINED:
445 case DPX_COL_SPEC_UNSPECIFIED_VIDEO:
446 /* Nothing to do */
447 2 break;
448 89 default:
449 89 av_log(avctx, AV_LOG_VERBOSE, "Cannot map DPX color specification "
450 "%d to color_primaries.\n", color_spec);
451 89 break;
452 }
453
454
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93 if (yuv) {
455 switch (color_spec) {
456 case DPX_COL_SPEC_SMPTE_274:
457 case DPX_COL_SPEC_ITU_R_709_4:
458 avctx->colorspace = AVCOL_SPC_BT709;
459 break;
460 case DPX_COL_SPEC_ITU_R_601_625:
461 case DPX_COL_SPEC_ITU_R_624_4_PAL:
462 avctx->colorspace = AVCOL_SPC_BT470BG;
463 break;
464 case DPX_COL_SPEC_ITU_R_601_525:
465 case DPX_COL_SPEC_SMPTE_170:
466 avctx->colorspace = AVCOL_SPC_SMPTE170M;
467 break;
468 case DPX_COL_SPEC_USER_DEFINED:
469 case DPX_COL_SPEC_UNSPECIFIED_VIDEO:
470 /* Nothing to do */
471 break;
472 default:
473 av_log(avctx, AV_LOG_INFO, "Cannot map DPX color specification "
474 "%d to colorspace.\n", color_spec);
475 break;
476 }
477 } else {
478 93 avctx->colorspace = AVCOL_SPC_RGB;
479 }
480
481 93 av_strlcpy(creator, avpkt->data + 160, 100);
482 93 creator[100] = '\0';
483 93 av_dict_set(&p->metadata, "Creator", creator, 0);
484
485 93 av_strlcpy(input_device, avpkt->data + 1556, 32);
486 93 input_device[32] = '\0';
487 93 av_dict_set(&p->metadata, "Input Device", input_device, 0);
488
489 // Some devices do not pad 10bit samples to whole 32bit words per row
490
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93 if (!memcmp(input_device, "Scanity", 7) ||
491
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93 !memcmp(creator, "Lasergraphics Inc.", 18)) {
492 if (bits_per_color == 10)
493 unpadded_10bit = 1;
494 }
495
496 // Table 3c: Runs will always break at scan line boundaries. Packing
497 // will always break to the next 32-bit word at scan-line boundaries.
498 // Unfortunately, the encoder produced invalid files, so attempt
499 // to detect it
500 // Also handle special case with unpadded content
501 93 need_align = FFALIGN(stride, 4);
502
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93 if (need_align*avctx->height + (int64_t)offset > avpkt->size &&
503 (!unpadded_10bit || (avctx->width * avctx->height * elements + 2) / 3 * 4 + (int64_t)offset > avpkt->size)) {
504 // Alignment seems unappliable, try without
505 if (stride*avctx->height + (int64_t)offset > avpkt->size || unpadded_10bit) {
506 av_log(avctx, AV_LOG_ERROR, "Overread buffer. Invalid header?\n");
507 return AVERROR_INVALIDDATA;
508 } else {
509 av_log(avctx, AV_LOG_INFO, "Decoding DPX without scanline "
510 "alignment.\n");
511 need_align = 0;
512 }
513 } else {
514 93 need_align -= stride;
515 93 stride = FFALIGN(stride, 4);
516 }
517
518
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93 switch (1000 * descriptor + 10 * bits_per_color + endian) {
519 case 1081:
520 case 1080:
521 case 2081:
522 case 2080:
523 case 3081:
524 case 3080:
525 case 4081:
526 case 4080:
527 case 6081:
528 case 6080:
529 avctx->pix_fmt = AV_PIX_FMT_GRAY8;
530 break;
531 case 6121:
532 case 6120:
533 avctx->pix_fmt = AV_PIX_FMT_GRAY12;
534 break;
535 case 1320:
536 case 2320:
537 case 3320:
538 case 4320:
539 case 6320:
540 avctx->pix_fmt = AV_PIX_FMT_GRAYF32LE;
541 break;
542 case 1321:
543 case 2321:
544 case 3321:
545 case 4321:
546 case 6321:
547 avctx->pix_fmt = AV_PIX_FMT_GRAYF32BE;
548 break;
549 19 case 50081:
550 case 50080:
551 19 avctx->pix_fmt = AV_PIX_FMT_RGB24;
552 19 break;
553 case 52081:
554 case 52080:
555 avctx->pix_fmt = AV_PIX_FMT_ABGR;
556 break;
557 case 51081:
558 case 51080:
559 avctx->pix_fmt = AV_PIX_FMT_RGBA;
560 break;
561 30 case 50100:
562 case 50101:
563 30 avctx->pix_fmt = AV_PIX_FMT_GBRP10;
564 30 break;
565 case 51100:
566 case 51101:
567 avctx->pix_fmt = AV_PIX_FMT_GBRAP10;
568 break;
569 14 case 50120:
570 case 50121:
571 14 avctx->pix_fmt = AV_PIX_FMT_GBRP12;
572 14 break;
573 case 51120:
574 case 51121:
575 avctx->pix_fmt = AV_PIX_FMT_GBRAP12;
576 break;
577 case 6100:
578 case 6101:
579 avctx->pix_fmt = AV_PIX_FMT_GRAY10;
580 break;
581 case 6161:
582 avctx->pix_fmt = AV_PIX_FMT_GRAY16BE;
583 break;
584 case 6160:
585 avctx->pix_fmt = AV_PIX_FMT_GRAY16LE;
586 break;
587 2 case 50161:
588 2 avctx->pix_fmt = AV_PIX_FMT_RGB48BE;
589 2 break;
590 14 case 50160:
591 14 avctx->pix_fmt = AV_PIX_FMT_RGB48LE;
592 14 break;
593 case 51161:
594 avctx->pix_fmt = AV_PIX_FMT_RGBA64BE;
595 break;
596 14 case 51160:
597 14 avctx->pix_fmt = AV_PIX_FMT_RGBA64LE;
598 14 break;
599 case 50320:
600 avctx->pix_fmt = AV_PIX_FMT_GBRPF32LE;
601 break;
602 case 50321:
603 avctx->pix_fmt = AV_PIX_FMT_GBRPF32BE;
604 break;
605 case 51320:
606 avctx->pix_fmt = AV_PIX_FMT_GBRAPF32LE;
607 break;
608 case 51321:
609 avctx->pix_fmt = AV_PIX_FMT_GBRAPF32BE;
610 break;
611 case 100081:
612 avctx->pix_fmt = AV_PIX_FMT_UYVY422;
613 break;
614 case 102081:
615 avctx->pix_fmt = AV_PIX_FMT_YUV444P;
616 break;
617 case 103081:
618 avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
619 break;
620 default:
621 av_log(avctx, AV_LOG_ERROR, "Unsupported format %d\n",
622 1000 * descriptor + 10 * bits_per_color + endian);
623 return AVERROR_PATCHWELCOME;
624 }
625
626 93 ff_set_sar(avctx, avctx->sample_aspect_ratio);
627
628
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93 if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
629 return ret;
630
631 // Move pointer to offset from start of file
632 93 buf = avpkt->data + offset;
633
634
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837 for (i=0; i<AV_NUM_DATA_POINTERS; i++)
635 744 ptr[i] = p->data[i];
636
637
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93 switch (bits_per_color) {
638 30 case 10:
639
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8574 for (x = 0; x < avctx->height; x++) {
640 8544 uint16_t *dst[4] = {(uint16_t*)ptr[0],
641 8544 (uint16_t*)ptr[1],
642 8544 (uint16_t*)ptr[2],
643 8544 (uint16_t*)ptr[3]};
644
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8544 int shift = elements > 1 ? packing == 1 ? 22 : 20 : packing == 1 ? 2 : 0;
645
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3052512 for (y = 0; y < avctx->width; y++) {
646
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3043968 if (elements >= 3)
647 3043968 *dst[2]++ = read10in32(&buf, &rgbBuffer,
648 &n_datum, endian, shift);
649
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3043968 if (elements == 1)
650 *dst[0]++ = read10in32_gray(&buf, &rgbBuffer,
651 &n_datum, endian, shift);
652 else
653 3043968 *dst[0]++ = read10in32(&buf, &rgbBuffer,
654 &n_datum, endian, shift);
655
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3043968 if (elements >= 2)
656 3043968 *dst[1]++ = read10in32(&buf, &rgbBuffer,
657 &n_datum, endian, shift);
658
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3043968 if (elements == 4)
659 *dst[3]++ =
660 read10in32(&buf, &rgbBuffer,
661 &n_datum, endian, shift);
662 }
663
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8544 if (!unpadded_10bit)
664 8544 n_datum = 0;
665
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34176 for (i = 0; i < elements; i++)
666 25632 ptr[i] += p->linesize[i];
667 }
668 30 break;
669 14 case 12:
670
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4046 for (x = 0; x < avctx->height; x++) {
671 4032 uint16_t *dst[4] = {(uint16_t*)ptr[0],
672 4032 (uint16_t*)ptr[1],
673 4032 (uint16_t*)ptr[2],
674 4032 (uint16_t*)ptr[3]};
675
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4032 int shift = packing == 1 ? 4 : 0;
676
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1423296 for (y = 0; y < avctx->width; y++) {
677
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1419264 if (packing) {
678
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1419264 if (elements >= 3)
679 1419264 *dst[2]++ = read16(&buf, endian) >> shift & 0xFFF;
680 1419264 *dst[0]++ = read16(&buf, endian) >> shift & 0xFFF;
681
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1419264 if (elements >= 2)
682 1419264 *dst[1]++ = read16(&buf, endian) >> shift & 0xFFF;
683
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1419264 if (elements == 4)
684 *dst[3]++ = read16(&buf, endian) >> shift & 0xFFF;
685 } else {
686 if (elements >= 3)
687 *dst[2]++ = read12in32(&buf, &rgbBuffer,
688 &n_datum, endian);
689 *dst[0]++ = read12in32(&buf, &rgbBuffer,
690 &n_datum, endian);
691 if (elements >= 2)
692 *dst[1]++ = read12in32(&buf, &rgbBuffer,
693 &n_datum, endian);
694 if (elements == 4)
695 *dst[3]++ = read12in32(&buf, &rgbBuffer,
696 &n_datum, endian);
697 }
698 }
699 4032 n_datum = 0;
700
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16128 for (i = 0; i < elements; i++)
701 12096 ptr[i] += p->linesize[i];
702 // Jump to next aligned position
703 4032 buf += need_align;
704 }
705 14 break;
706 case 32:
707 if (elements == 1) {
708 av_image_copy_plane(ptr[0], p->linesize[0],
709 buf, stride,
710 elements * avctx->width * 4, avctx->height);
711 } else {
712 for (y = 0; y < avctx->height; y++) {
713 ptr[0] = p->data[0] + y * p->linesize[0];
714 ptr[1] = p->data[1] + y * p->linesize[1];
715 ptr[2] = p->data[2] + y * p->linesize[2];
716 ptr[3] = p->data[3] + y * p->linesize[3];
717 for (x = 0; x < avctx->width; x++) {
718 AV_WN32(ptr[2], AV_RN32(buf));
719 AV_WN32(ptr[0], AV_RN32(buf + 4));
720 AV_WN32(ptr[1], AV_RN32(buf + 8));
721 if (avctx->pix_fmt == AV_PIX_FMT_GBRAPF32BE ||
722 avctx->pix_fmt == AV_PIX_FMT_GBRAPF32LE) {
723 AV_WN32(ptr[3], AV_RN32(buf + 12));
724 buf += 4;
725 ptr[3] += 4;
726 }
727
728 buf += 12;
729 ptr[2] += 4;
730 ptr[0] += 4;
731 ptr[1] += 4;
732 }
733 }
734 }
735 break;
736 30 case 16:
737 30 elements *= 2;
738 49 case 8:
739
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49 if ( avctx->pix_fmt == AV_PIX_FMT_YUVA444P
740
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49 || avctx->pix_fmt == AV_PIX_FMT_YUV444P) {
741 for (x = 0; x < avctx->height; x++) {
742 ptr[0] = p->data[0] + x * p->linesize[0];
743 ptr[1] = p->data[1] + x * p->linesize[1];
744 ptr[2] = p->data[2] + x * p->linesize[2];
745 ptr[3] = p->data[3] + x * p->linesize[3];
746 for (y = 0; y < avctx->width; y++) {
747 *ptr[1]++ = *buf++;
748 *ptr[0]++ = *buf++;
749 *ptr[2]++ = *buf++;
750 if (avctx->pix_fmt == AV_PIX_FMT_YUVA444P)
751 *ptr[3]++ = *buf++;
752 }
753 }
754 } else {
755 49 av_image_copy_plane(ptr[0], p->linesize[0],
756 buf, stride,
757 49 elements * avctx->width, avctx->height);
758 }
759 49 break;
760 }
761
762 93 *got_frame = 1;
763
764 93 return buf_size;
765 }
766
767 const FFCodec ff_dpx_decoder = {
768 .p.name = "dpx",
769 CODEC_LONG_NAME("DPX (Digital Picture Exchange) image"),
770 .p.type = AVMEDIA_TYPE_VIDEO,
771 .p.id = AV_CODEC_ID_DPX,
772 FF_CODEC_DECODE_CB(decode_frame),
773 .p.capabilities = AV_CODEC_CAP_DR1,
774 };
775