libavcodec/tiffenc.c

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