1 /*
2 * TIFF image encoder
3 * Copyright (c) 2007 Bartlomiej Wolowiec
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 /**
23 * @file
24 * TIFF image encoder
25 * @author Bartlomiej Wolowiec
26 */
27
28 #include "config.h"
29 #if CONFIG_ZLIB
30 #include <zlib.h>
31 #endif
32
33 #include "libavutil/imgutils.h"
34 #include "libavutil/log.h"
35 #include "libavutil/opt.h"
36 #include "libavutil/pixdesc.h"
37 #include "avcodec.h"
38 #include "bytestream.h"
39 #include "internal.h"
40 #include "lzw.h"
41 #include "put_bits.h"
42 #include "rle.h"
43 #include "tiff.h"
44
45 #define TIFF_MAX_ENTRY 32
46
47 /** sizes of various TIFF field types (string size = 1)*/
48 static const uint8_t type_sizes2[14] = {
49 0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8, 4
50 };
51
52 typedef struct TiffEncoderContext {
53 AVClass *class; ///< for private options
54 AVCodecContext *avctx;
55
56 int width; ///< picture width
57 int height; ///< picture height
58 unsigned int bpp; ///< bits per pixel
59 int compr; ///< compression level
60 int bpp_tab_size; ///< bpp_tab size
61 enum TiffPhotometric photometric_interpretation; ///< photometric interpretation
62 int strips; ///< number of strips
63 uint32_t *strip_sizes;
64 unsigned int strip_sizes_size;
65 uint32_t *strip_offsets;
66 unsigned int strip_offsets_size;
67 uint8_t *yuv_line;
68 unsigned int yuv_line_size;
69 int rps; ///< row per strip
70 uint8_t entries[TIFF_MAX_ENTRY * 12]; ///< entries in header
71 int num_entries; ///< number of entries
72 uint8_t **buf; ///< actual position in buffer
73 uint8_t *buf_start; ///< pointer to first byte in buffer
74 int buf_size; ///< buffer size
75 uint16_t subsampling[2]; ///< YUV subsampling factors
76 struct LZWEncodeState *lzws; ///< LZW encode state
77 uint32_t dpi; ///< image resolution in DPI
78 } TiffEncoderContext;
79
80 /**
81 * Check free space in buffer.
82 *
83 * @param s Tiff context
84 * @param need Needed bytes
85 * @return 0 - ok, 1 - no free space
86 */
check_size(TiffEncoderContext * s,uint64_t need)87 static inline int check_size(TiffEncoderContext *s, uint64_t need)
88 {
89 if (s->buf_size < *s->buf - s->buf_start + need) {
90 *s->buf = s->buf_start + s->buf_size + 1;
91 av_log(s->avctx, AV_LOG_ERROR, "Buffer is too small\n");
92 return 1;
93 }
94 return 0;
95 }
96
97 /**
98 * Put n values to buffer.
99 *
100 * @param p pointer to pointer to output buffer
101 * @param n number of values
102 * @param val pointer to values
103 * @param type type of values
104 * @param flip = 0 - normal copy, >0 - flip
105 */
tnput(uint8_t ** p,int n,const uint8_t * val,enum TiffTypes type,int flip)106 static void tnput(uint8_t **p, int n, const uint8_t *val, enum TiffTypes type,
107 int flip)
108 {
109 int i;
110 #if HAVE_BIGENDIAN
111 flip ^= ((int[]) { 0, 0, 0, 1, 3, 3 })[type];
112 #endif
113 for (i = 0; i < n * type_sizes2[type]; i++)
114 *(*p)++ = val[i ^ flip];
115 }
116
117 /**
118 * Add entry to directory in tiff header.
119 *
120 * @param s Tiff context
121 * @param tag tag that identifies the entry
122 * @param type entry type
123 * @param count the number of values
124 * @param ptr_val pointer to values
125 */
add_entry(TiffEncoderContext * s,enum TiffTags tag,enum TiffTypes type,int count,const void * ptr_val)126 static int add_entry(TiffEncoderContext *s, enum TiffTags tag,
127 enum TiffTypes type, int count, const void *ptr_val)
128 {
129 uint8_t *entries_ptr = s->entries + 12 * s->num_entries;
130
131 av_assert0(s->num_entries < TIFF_MAX_ENTRY);
132
133 bytestream_put_le16(&entries_ptr, tag);
134 bytestream_put_le16(&entries_ptr, type);
135 bytestream_put_le32(&entries_ptr, count);
136
137 if (type_sizes[type] * (int64_t)count <= 4) {
138 tnput(&entries_ptr, count, ptr_val, type, 0);
139 } else {
140 bytestream_put_le32(&entries_ptr, *s->buf - s->buf_start);
141 if (check_size(s, count * (int64_t)type_sizes2[type]))
142 return AVERROR_INVALIDDATA;
143 tnput(s->buf, count, ptr_val, type, 0);
144 }
145
146 s->num_entries++;
147 return 0;
148 }
149
add_entry1(TiffEncoderContext * s,enum TiffTags tag,enum TiffTypes type,int val)150 static int add_entry1(TiffEncoderContext *s,
151 enum TiffTags tag, enum TiffTypes type, int val)
152 {
153 uint16_t w = val;
154 uint32_t dw = val;
155 return add_entry(s, tag, type, 1,
156 type == TIFF_SHORT ? (void *)&w : (void *)&dw);
157 }
158
159 /**
160 * Encode one strip in tiff file.
161 *
162 * @param s Tiff context
163 * @param src input buffer
164 * @param dst output buffer
165 * @param n size of input buffer
166 * @param compr compression method
167 * @return number of output bytes. If an output error is encountered, a negative
168 * value corresponding to an AVERROR error code is returned.
169 */
encode_strip(TiffEncoderContext * s,const int8_t * src,uint8_t * dst,int n,int compr)170 static int encode_strip(TiffEncoderContext *s, const int8_t *src,
171 uint8_t *dst, int n, int compr)
172 {
173 switch (compr) {
174 #if CONFIG_ZLIB
175 case TIFF_DEFLATE:
176 case TIFF_ADOBE_DEFLATE:
177 {
178 unsigned long zlen = s->buf_size - (*s->buf - s->buf_start);
179 if (compress(dst, &zlen, src, n) != Z_OK) {
180 av_log(s->avctx, AV_LOG_ERROR, "Compressing failed\n");
181 return AVERROR_EXTERNAL;
182 }
183 return zlen;
184 }
185 #endif
186 case TIFF_RAW:
187 if (check_size(s, n))
188 return AVERROR(EINVAL);
189 memcpy(dst, src, n);
190 return n;
191 case TIFF_PACKBITS:
192 return ff_rle_encode(dst, s->buf_size - (*s->buf - s->buf_start),
193 src, 1, n, 2, 0xff, -1, 0);
194 case TIFF_LZW:
195 return ff_lzw_encode(s->lzws, src, n);
196 default:
197 av_log(s->avctx, AV_LOG_ERROR, "Unsupported compression method: %d\n",
198 compr);
199 return AVERROR(EINVAL);
200 }
201 }
202
pack_yuv(TiffEncoderContext * s,const AVFrame * p,uint8_t * dst,int lnum)203 static void pack_yuv(TiffEncoderContext *s, const AVFrame *p,
204 uint8_t *dst, int lnum)
205 {
206 int i, j, k;
207 int w = (s->width - 1) / s->subsampling[0] + 1;
208 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
209 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
210 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
211 for (i = 0; i < w; i++) {
212 for (j = 0; j < s->subsampling[1]; j++)
213 for (k = 0; k < s->subsampling[0]; k++)
214 *dst++ = p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
215 FFMIN(i * s->subsampling[0] + k, s->width-1)];
216 *dst++ = *pu++;
217 *dst++ = *pv++;
218 }
219 }else{
220 for (i = 0; i < w; i++) {
221 for (j = 0; j < s->subsampling[1]; j++)
222 for (k = 0; k < s->subsampling[0]; k++)
223 *dst++ = p->data[0][(lnum + j) * p->linesize[0] +
224 i * s->subsampling[0] + k];
225 *dst++ = *pu++;
226 *dst++ = *pv++;
227 }
228 }
229 }
230
231 #define ADD_ENTRY(s, tag, type, count, ptr_val) \
232 do { \
233 ret = add_entry(s, tag, type, count, ptr_val); \
234 if (ret < 0) \
235 goto fail; \
236 } while (0)
237
238 #define ADD_ENTRY1(s, tag, type, val) \
239 do { \
240 ret = add_entry1(s, tag, type, val); \
241 if (ret < 0) \
242 goto fail; \
243 } while (0)
244
encode_frame(AVCodecContext * avctx,AVPacket * pkt,const AVFrame * pict,int * got_packet)245 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
246 const AVFrame *pict, int *got_packet)
247 {
248 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
249 TiffEncoderContext *s = avctx->priv_data;
250 const AVFrame *const p = pict;
251 int i;
252 uint8_t *ptr;
253 uint8_t *offset;
254 uint32_t strips;
255 int bytes_per_row;
256 uint32_t res[2] = { s->dpi, 1 }; // image resolution (72/1)
257 uint16_t bpp_tab[4];
258 int ret = 0;
259 int is_yuv = 0, alpha = 0;
260 int shift_h, shift_v;
261 int packet_size;
262
263 s->width = avctx->width;
264 s->height = avctx->height;
265 s->subsampling[0] = 1;
266 s->subsampling[1] = 1;
267
268 if (!desc)
269 return AVERROR(EINVAL);
270
271 avctx->bits_per_coded_sample =
272 s->bpp = av_get_bits_per_pixel(desc);
273 s->bpp_tab_size = desc->nb_components;
274
275 switch (avctx->pix_fmt) {
276 case AV_PIX_FMT_RGBA64LE:
277 case AV_PIX_FMT_RGBA:
278 alpha = 1;
279 case AV_PIX_FMT_RGB48LE:
280 case AV_PIX_FMT_RGB24:
281 s->photometric_interpretation = TIFF_PHOTOMETRIC_RGB;
282 break;
283 case AV_PIX_FMT_GRAY8:
284 avctx->bits_per_coded_sample = 0x28;
285 case AV_PIX_FMT_GRAY8A:
286 case AV_PIX_FMT_YA16LE:
287 alpha = avctx->pix_fmt == AV_PIX_FMT_GRAY8A || avctx->pix_fmt == AV_PIX_FMT_YA16LE;
288 case AV_PIX_FMT_GRAY16LE:
289 case AV_PIX_FMT_MONOBLACK:
290 s->photometric_interpretation = TIFF_PHOTOMETRIC_BLACK_IS_ZERO;
291 break;
292 case AV_PIX_FMT_PAL8:
293 s->photometric_interpretation = TIFF_PHOTOMETRIC_PALETTE;
294 break;
295 case AV_PIX_FMT_MONOWHITE:
296 s->photometric_interpretation = TIFF_PHOTOMETRIC_WHITE_IS_ZERO;
297 break;
298 case AV_PIX_FMT_YUV420P:
299 case AV_PIX_FMT_YUV422P:
300 case AV_PIX_FMT_YUV440P:
301 case AV_PIX_FMT_YUV444P:
302 case AV_PIX_FMT_YUV410P:
303 case AV_PIX_FMT_YUV411P:
304 av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &shift_h, &shift_v);
305 s->photometric_interpretation = TIFF_PHOTOMETRIC_YCBCR;
306 s->subsampling[0] = 1 << shift_h;
307 s->subsampling[1] = 1 << shift_v;
308 is_yuv = 1;
309 break;
310 default:
311 av_log(s->avctx, AV_LOG_ERROR,
312 "This colors format is not supported\n");
313 return AVERROR(EINVAL);
314 }
315
316 for (i = 0; i < s->bpp_tab_size; i++)
317 bpp_tab[i] = desc->comp[i].depth;
318
319 if (s->compr == TIFF_DEFLATE ||
320 s->compr == TIFF_ADOBE_DEFLATE ||
321 s->compr == TIFF_LZW)
322 // best choice for DEFLATE
323 s->rps = s->height;
324 else
325 // suggest size of strip
326 s->rps = FFMAX(8192 / (((s->width * s->bpp) >> 3) + 1), 1);
327 // round rps up
328 s->rps = ((s->rps - 1) / s->subsampling[1] + 1) * s->subsampling[1];
329
330 strips = (s->height - 1) / s->rps + 1;
331
332 bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
333 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
334 packet_size = avctx->height * bytes_per_row * 2 +
335 avctx->height * 4 + AV_INPUT_BUFFER_MIN_SIZE;
336
337 if ((ret = ff_alloc_packet2(avctx, pkt, packet_size, 0)) < 0)
338 return ret;
339 ptr = pkt->data;
340 s->buf_start = pkt->data;
341 s->buf = &ptr;
342 s->buf_size = pkt->size;
343
344 if (check_size(s, 8)) {
345 ret = AVERROR(EINVAL);
346 goto fail;
347 }
348
349 // write header
350 bytestream_put_le16(&ptr, 0x4949);
351 bytestream_put_le16(&ptr, 42);
352
353 offset = ptr;
354 bytestream_put_le32(&ptr, 0);
355
356 if (strips > INT_MAX / FFMAX(sizeof(s->strip_sizes[0]), sizeof(s->strip_offsets[0]))) {
357 ret = AVERROR(ENOMEM);
358 goto fail;
359 }
360 av_fast_padded_mallocz(&s->strip_sizes , &s->strip_sizes_size , sizeof(s->strip_sizes [0]) * strips);
361 av_fast_padded_mallocz(&s->strip_offsets, &s->strip_offsets_size, sizeof(s->strip_offsets[0]) * strips);
362
363 if (!s->strip_sizes || !s->strip_offsets) {
364 ret = AVERROR(ENOMEM);
365 goto fail;
366 }
367
368 if (is_yuv) {
369 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
370 if (s->yuv_line == NULL) {
371 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
372 ret = AVERROR(ENOMEM);
373 goto fail;
374 }
375 }
376
377 #if CONFIG_ZLIB
378 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
379 uint8_t *zbuf;
380 int zlen, zn;
381 int j;
382
383 zlen = bytes_per_row * s->rps;
384 zbuf = av_malloc(zlen);
385 if (!zbuf) {
386 ret = AVERROR(ENOMEM);
387 goto fail;
388 }
389 s->strip_offsets[0] = ptr - pkt->data;
390 zn = 0;
391 for (j = 0; j < s->rps; j++) {
392 if (is_yuv) {
393 pack_yuv(s, p, s->yuv_line, j);
394 memcpy(zbuf + zn, s->yuv_line, bytes_per_row);
395 j += s->subsampling[1] - 1;
396 } else
397 memcpy(zbuf + j * bytes_per_row,
398 p->data[0] + j * p->linesize[0], bytes_per_row);
399 zn += bytes_per_row;
400 }
401 ret = encode_strip(s, zbuf, ptr, zn, s->compr);
402 av_free(zbuf);
403 if (ret < 0) {
404 av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
405 goto fail;
406 }
407 ptr += ret;
408 s->strip_sizes[0] = ptr - pkt->data - s->strip_offsets[0];
409 } else
410 #endif
411 {
412 if (s->compr == TIFF_LZW) {
413 s->lzws = av_malloc(ff_lzw_encode_state_size);
414 if (!s->lzws) {
415 ret = AVERROR(ENOMEM);
416 goto fail;
417 }
418 }
419 for (i = 0; i < s->height; i++) {
420 if (s->strip_sizes[i / s->rps] == 0) {
421 if (s->compr == TIFF_LZW) {
422 ff_lzw_encode_init(s->lzws, ptr,
423 s->buf_size - (*s->buf - s->buf_start),
424 12, FF_LZW_TIFF, 0);
425 }
426 s->strip_offsets[i / s->rps] = ptr - pkt->data;
427 }
428 if (is_yuv) {
429 pack_yuv(s, p, s->yuv_line, i);
430 ret = encode_strip(s, s->yuv_line, ptr, bytes_per_row, s->compr);
431 i += s->subsampling[1] - 1;
432 } else
433 ret = encode_strip(s, p->data[0] + i * p->linesize[0],
434 ptr, bytes_per_row, s->compr);
435 if (ret < 0) {
436 av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
437 goto fail;
438 }
439 s->strip_sizes[i / s->rps] += ret;
440 ptr += ret;
441 if (s->compr == TIFF_LZW &&
442 (i == s->height - 1 || i % s->rps == s->rps - 1)) {
443 ret = ff_lzw_encode_flush(s->lzws);
444 s->strip_sizes[(i / s->rps)] += ret;
445 ptr += ret;
446 }
447 }
448 if (s->compr == TIFF_LZW)
449 av_freep(&s->lzws);
450 }
451
452 s->num_entries = 0;
453
454 ADD_ENTRY1(s, TIFF_SUBFILE, TIFF_LONG, 0);
455 ADD_ENTRY1(s, TIFF_WIDTH, TIFF_LONG, s->width);
456 ADD_ENTRY1(s, TIFF_HEIGHT, TIFF_LONG, s->height);
457
458 if (s->bpp_tab_size)
459 ADD_ENTRY(s, TIFF_BPP, TIFF_SHORT, s->bpp_tab_size, bpp_tab);
460
461 ADD_ENTRY1(s, TIFF_COMPR, TIFF_SHORT, s->compr);
462 ADD_ENTRY1(s, TIFF_PHOTOMETRIC, TIFF_SHORT, s->photometric_interpretation);
463 ADD_ENTRY(s, TIFF_STRIP_OFFS, TIFF_LONG, strips, s->strip_offsets);
464
465 if (s->bpp_tab_size)
466 ADD_ENTRY1(s, TIFF_SAMPLES_PER_PIXEL, TIFF_SHORT, s->bpp_tab_size);
467
468 ADD_ENTRY1(s, TIFF_ROWSPERSTRIP, TIFF_LONG, s->rps);
469 ADD_ENTRY(s, TIFF_STRIP_SIZE, TIFF_LONG, strips, s->strip_sizes);
470 ADD_ENTRY(s, TIFF_XRES, TIFF_RATIONAL, 1, res);
471 if (avctx->sample_aspect_ratio.num > 0 &&
472 avctx->sample_aspect_ratio.den > 0) {
473 AVRational y = av_mul_q(av_make_q(s->dpi, 1),
474 avctx->sample_aspect_ratio);
475 res[0] = y.num;
476 res[1] = y.den;
477 }
478 ADD_ENTRY(s, TIFF_YRES, TIFF_RATIONAL, 1, res);
479 ADD_ENTRY1(s, TIFF_RES_UNIT, TIFF_SHORT, 2);
480
481 if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT))
482 ADD_ENTRY(s, TIFF_SOFTWARE_NAME, TIFF_STRING,
483 strlen(LIBAVCODEC_IDENT) + 1, LIBAVCODEC_IDENT);
484
485 if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
486 uint16_t pal[256 * 3];
487 for (i = 0; i < 256; i++) {
488 uint32_t rgb = *(uint32_t *) (p->data[1] + i * 4);
489 pal[i] = ((rgb >> 16) & 0xff) * 257;
490 pal[i + 256] = ((rgb >> 8) & 0xff) * 257;
491 pal[i + 512] = (rgb & 0xff) * 257;
492 }
493 ADD_ENTRY(s, TIFF_PAL, TIFF_SHORT, 256 * 3, pal);
494 }
495 if (alpha)
496 ADD_ENTRY1(s,TIFF_EXTRASAMPLES, TIFF_SHORT, 2);
497 if (is_yuv) {
498 /** according to CCIR Recommendation 601.1 */
499 uint32_t refbw[12] = { 15, 1, 235, 1, 128, 1, 240, 1, 128, 1, 240, 1 };
500 ADD_ENTRY(s, TIFF_YCBCR_SUBSAMPLING, TIFF_SHORT, 2, s->subsampling);
501 if (avctx->chroma_sample_location == AVCHROMA_LOC_TOPLEFT)
502 ADD_ENTRY1(s, TIFF_YCBCR_POSITIONING, TIFF_SHORT, 2);
503 ADD_ENTRY(s, TIFF_REFERENCE_BW, TIFF_RATIONAL, 6, refbw);
504 }
505 // write offset to dir
506 bytestream_put_le32(&offset, ptr - pkt->data);
507
508 if (check_size(s, 6 + s->num_entries * 12)) {
509 ret = AVERROR(EINVAL);
510 goto fail;
511 }
512 bytestream_put_le16(&ptr, s->num_entries); // write tag count
513 bytestream_put_buffer(&ptr, s->entries, s->num_entries * 12);
514 bytestream_put_le32(&ptr, 0);
515
516 pkt->size = ptr - pkt->data;
517 pkt->flags |= AV_PKT_FLAG_KEY;
518 *got_packet = 1;
519
520 fail:
521 return ret < 0 ? ret : 0;
522 }
523
encode_init(AVCodecContext * avctx)524 static av_cold int encode_init(AVCodecContext *avctx)
525 {
526 TiffEncoderContext *s = avctx->priv_data;
527
528 #if !CONFIG_ZLIB
529 if (s->compr == TIFF_DEFLATE) {
530 av_log(avctx, AV_LOG_ERROR,
531 "Deflate compression needs zlib compiled in\n");
532 return AVERROR(ENOSYS);
533 }
534 #endif
535
536 #if FF_API_CODED_FRAME
537 FF_DISABLE_DEPRECATION_WARNINGS
538 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
539 avctx->coded_frame->key_frame = 1;
540 FF_ENABLE_DEPRECATION_WARNINGS
541 #endif
542 s->avctx = avctx;
543
544 return 0;
545 }
546
encode_close(AVCodecContext * avctx)547 static av_cold int encode_close(AVCodecContext *avctx)
548 {
549 TiffEncoderContext *s = avctx->priv_data;
550
551 av_freep(&s->strip_sizes);
552 av_freep(&s->strip_offsets);
553 av_freep(&s->yuv_line);
554
555 return 0;
556 }
557
558 #define OFFSET(x) offsetof(TiffEncoderContext, x)
559 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
560 static const AVOption options[] = {
561 {"dpi", "set the image resolution (in dpi)", OFFSET(dpi), AV_OPT_TYPE_INT, {.i64 = 72}, 1, 0x10000, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_ENCODING_PARAM},
562 { "compression_algo", NULL, OFFSET(compr), AV_OPT_TYPE_INT, { .i64 = TIFF_PACKBITS }, TIFF_RAW, TIFF_DEFLATE, VE, "compression_algo" },
563 { "packbits", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_PACKBITS }, 0, 0, VE, "compression_algo" },
564 { "raw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_RAW }, 0, 0, VE, "compression_algo" },
565 { "lzw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_LZW }, 0, 0, VE, "compression_algo" },
566 { "deflate", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_DEFLATE }, 0, 0, VE, "compression_algo" },
567 { NULL },
568 };
569
570 static const AVClass tiffenc_class = {
571 .class_name = "TIFF encoder",
572 .item_name = av_default_item_name,
573 .option = options,
574 .version = LIBAVUTIL_VERSION_INT,
575 };
576
577 AVCodec ff_tiff_encoder = {
578 .name = "tiff",
579 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
580 .type = AVMEDIA_TYPE_VIDEO,
581 .id = AV_CODEC_ID_TIFF,
582 .priv_data_size = sizeof(TiffEncoderContext),
583 .init = encode_init,
584 .close = encode_close,
585 .capabilities = AV_CODEC_CAP_FRAME_THREADS,
586 .encode2 = encode_frame,
587 .pix_fmts = (const enum AVPixelFormat[]) {
588 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48LE, AV_PIX_FMT_PAL8,
589 AV_PIX_FMT_RGBA, AV_PIX_FMT_RGBA64LE,
590 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY8A, AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_YA16LE,
591 AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_MONOWHITE,
592 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
593 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
594 AV_PIX_FMT_NONE
595 },
596 .priv_class = &tiffenc_class,
597 };
598