GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/dxtory.c Lines: 33 315 10.5 %
Date: 2019-11-22 03:34:36 Branches: 9 121 7.4 %

Line Branch Exec Source
1
/*
2
 * Dxtory decoder
3
 *
4
 * Copyright (c) 2011 Konstantin Shishkov
5
 *
6
 * This file is part of FFmpeg.
7
 *
8
 * FFmpeg is free software; you can redistribute it and/or
9
 * modify it under the terms of the GNU Lesser General Public
10
 * License as published by the Free Software Foundation; either
11
 * version 2.1 of the License, or (at your option) any later version.
12
 *
13
 * FFmpeg is distributed in the hope that it will be useful,
14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * Lesser General Public License for more details.
17
 *
18
 * You should have received a copy of the GNU Lesser General Public
19
 * License along with FFmpeg; if not, write to the Free Software
20
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
 */
22
23
#include <inttypes.h>
24
25
#include "libavutil/common.h"
26
#include "libavutil/intreadwrite.h"
27
28
#define BITSTREAM_READER_LE
29
#include "avcodec.h"
30
#include "bytestream.h"
31
#include "get_bits.h"
32
#include "internal.h"
33
#include "unary.h"
34
35
static int dxtory_decode_v1_rgb(AVCodecContext *avctx, AVFrame *pic,
36
                                const uint8_t *src, int src_size,
37
                                int id, int bpp)
38
{
39
    int h;
40
    uint8_t *dst;
41
    int ret;
42
43
    if (src_size < avctx->width * avctx->height * (int64_t)bpp) {
44
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
45
        return AVERROR_INVALIDDATA;
46
    }
47
48
    avctx->pix_fmt = id;
49
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
50
        return ret;
51
52
    dst = pic->data[0];
53
    for (h = 0; h < avctx->height; h++) {
54
        memcpy(dst, src, avctx->width * bpp);
55
        src += avctx->width * bpp;
56
        dst += pic->linesize[0];
57
    }
58
59
    return 0;
60
}
61
62
static int dxtory_decode_v1_410(AVCodecContext *avctx, AVFrame *pic,
63
                                const uint8_t *src, int src_size)
64
{
65
    int h, w;
66
    uint8_t *Y1, *Y2, *Y3, *Y4, *U, *V;
67
    int ret;
68
69
    if (src_size < FFALIGN(avctx->width, 4) * FFALIGN(avctx->height, 4) * 9LL / 8) {
70
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
71
        return AVERROR_INVALIDDATA;
72
    }
73
74
    avctx->pix_fmt = AV_PIX_FMT_YUV410P;
75
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
76
        return ret;
77
78
    Y1 = pic->data[0];
79
    Y2 = pic->data[0] + pic->linesize[0];
80
    Y3 = pic->data[0] + pic->linesize[0] * 2;
81
    Y4 = pic->data[0] + pic->linesize[0] * 3;
82
    U  = pic->data[1];
83
    V  = pic->data[2];
84
    for (h = 0; h < avctx->height; h += 4) {
85
        for (w = 0; w < avctx->width; w += 4) {
86
            AV_COPY32U(Y1 + w, src);
87
            AV_COPY32U(Y2 + w, src + 4);
88
            AV_COPY32U(Y3 + w, src + 8);
89
            AV_COPY32U(Y4 + w, src + 12);
90
            U[w >> 2] = src[16] + 0x80;
91
            V[w >> 2] = src[17] + 0x80;
92
            src += 18;
93
        }
94
        Y1 += pic->linesize[0] << 2;
95
        Y2 += pic->linesize[0] << 2;
96
        Y3 += pic->linesize[0] << 2;
97
        Y4 += pic->linesize[0] << 2;
98
        U  += pic->linesize[1];
99
        V  += pic->linesize[2];
100
    }
101
102
    return 0;
103
}
104
105
2
static int dxtory_decode_v1_420(AVCodecContext *avctx, AVFrame *pic,
106
                                const uint8_t *src, int src_size)
107
{
108
    int h, w;
109
    uint8_t *Y1, *Y2, *U, *V;
110
    int ret;
111
112
2
    if (src_size < FFALIGN(avctx->width, 2) * FFALIGN(avctx->height, 2) * 3LL / 2) {
113
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
114
        return AVERROR_INVALIDDATA;
115
    }
116
117
2
    avctx->pix_fmt = AV_PIX_FMT_YUV420P;
118
2
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
119
        return ret;
120
121
2
    Y1 = pic->data[0];
122
2
    Y2 = pic->data[0] + pic->linesize[0];
123
2
    U  = pic->data[1];
124
2
    V  = pic->data[2];
125
722
    for (h = 0; h < avctx->height; h += 2) {
126
461520
        for (w = 0; w < avctx->width; w += 2) {
127
460800
            AV_COPY16(Y1 + w, src);
128
460800
            AV_COPY16(Y2 + w, src + 2);
129
460800
            U[w >> 1] = src[4] + 0x80;
130
460800
            V[w >> 1] = src[5] + 0x80;
131
460800
            src += 6;
132
        }
133
720
        Y1 += pic->linesize[0] << 1;
134
720
        Y2 += pic->linesize[0] << 1;
135
720
        U  += pic->linesize[1];
136
720
        V  += pic->linesize[2];
137
    }
138
139
2
    return 0;
140
}
141
142
static int dxtory_decode_v1_444(AVCodecContext *avctx, AVFrame *pic,
143
                                const uint8_t *src, int src_size)
144
{
145
    int h, w;
146
    uint8_t *Y, *U, *V;
147
    int ret;
148
149
    if (src_size < avctx->width * avctx->height * 3LL) {
150
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
151
        return AVERROR_INVALIDDATA;
152
    }
153
154
    avctx->pix_fmt = AV_PIX_FMT_YUV444P;
155
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
156
        return ret;
157
158
    Y = pic->data[0];
159
    U = pic->data[1];
160
    V = pic->data[2];
161
    for (h = 0; h < avctx->height; h++) {
162
        for (w = 0; w < avctx->width; w++) {
163
            Y[w] = *src++;
164
            U[w] = *src++ ^ 0x80;
165
            V[w] = *src++ ^ 0x80;
166
        }
167
        Y += pic->linesize[0];
168
        U += pic->linesize[1];
169
        V += pic->linesize[2];
170
    }
171
172
    return 0;
173
}
174
175
static const uint8_t def_lru[8] = { 0x00, 0x20, 0x40, 0x60, 0x80, 0xA0, 0xC0, 0xFF };
176
static const uint8_t def_lru_555[8] = { 0x00, 0x08, 0x10, 0x18, 0x1F };
177
static const uint8_t def_lru_565[8] = { 0x00, 0x08, 0x10, 0x20, 0x30, 0x3F };
178
179
static inline uint8_t decode_sym(GetBitContext *gb, uint8_t lru[8])
180
{
181
    uint8_t c, val;
182
183
    c = get_unary(gb, 0, 8);
184
    if (!c) {
185
        val = get_bits(gb, 8);
186
        memmove(lru + 1, lru, sizeof(*lru) * (8 - 1));
187
    } else {
188
        val = lru[c - 1];
189
        memmove(lru + 1, lru, sizeof(*lru) * (c - 1));
190
    }
191
    lru[0] = val;
192
193
    return val;
194
}
195
196
static int check_slice_size(AVCodecContext *avctx,
197
                            const uint8_t *src, int src_size,
198
                            int slice_size, int off)
199
{
200
    int cur_slice_size;
201
202
    if (slice_size > src_size - off) {
203
        av_log(avctx, AV_LOG_ERROR,
204
               "invalid slice size %d (only %d bytes left)\n",
205
               slice_size, src_size - off);
206
        return AVERROR_INVALIDDATA;
207
    }
208
    if (slice_size <= 16) {
209
        av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n",
210
               slice_size);
211
        return AVERROR_INVALIDDATA;
212
    }
213
214
    cur_slice_size = AV_RL32(src + off);
215
    if (cur_slice_size != slice_size - 16) {
216
        av_log(avctx, AV_LOG_ERROR,
217
               "Slice sizes mismatch: got %d instead of %d\n",
218
               cur_slice_size, slice_size - 16);
219
    }
220
221
    return 0;
222
}
223
224
static int load_buffer(AVCodecContext *avctx,
225
                       const uint8_t *src, int src_size,
226
                       GetByteContext *gb,
227
                       int *nslices, int *off)
228
{
229
    bytestream2_init(gb, src, src_size);
230
    *nslices = bytestream2_get_le16(gb);
231
    *off = FFALIGN(*nslices * 4 + 2, 16);
232
    if (src_size < *off) {
233
        av_log(avctx, AV_LOG_ERROR, "no slice data\n");
234
        return AVERROR_INVALIDDATA;
235
    }
236
237
    if (!*nslices) {
238
        avpriv_request_sample(avctx, "%d slices for %dx%d", *nslices,
239
                              avctx->width, avctx->height);
240
        return AVERROR_PATCHWELCOME;
241
    }
242
243
    return 0;
244
}
245
246
static inline uint8_t decode_sym_565(GetBitContext *gb, uint8_t lru[8],
247
                                     int bits)
248
{
249
    uint8_t c, val;
250
251
    c = get_unary(gb, 0, bits);
252
    if (!c) {
253
        val = get_bits(gb, bits);
254
        memmove(lru + 1, lru, sizeof(*lru) * (6 - 1));
255
    } else {
256
        val = lru[c - 1];
257
        memmove(lru + 1, lru, sizeof(*lru) * (c - 1));
258
    }
259
    lru[0] = val;
260
261
    return val;
262
}
263
264
typedef int (*decode_slice_func)(GetBitContext *gb, AVFrame *frame,
265
                                 int line, int height, uint8_t lru[3][8]);
266
267
typedef void (*setup_lru_func)(uint8_t lru[3][8]);
268
269
static int dxtory_decode_v2(AVCodecContext *avctx, AVFrame *pic,
270
                            const uint8_t *src, int src_size,
271
                            decode_slice_func decode_slice,
272
                            setup_lru_func setup_lru,
273
                            enum AVPixelFormat fmt)
274
{
275
    GetByteContext gb, gb_check;
276
    GetBitContext  gb2;
277
    int nslices, slice, line = 0;
278
    uint32_t off, slice_size;
279
    uint64_t off_check;
280
    uint8_t lru[3][8];
281
    int ret;
282
283
    ret = load_buffer(avctx, src, src_size, &gb, &nslices, &off);
284
    if (ret < 0)
285
        return ret;
286
287
    off_check = off;
288
    gb_check = gb;
289
    for (slice = 0; slice < nslices; slice++) {
290
        slice_size = bytestream2_get_le32(&gb_check);
291
292
        if (slice_size <= 16 + (avctx->height * avctx->width / (8 * nslices)))
293
            return AVERROR_INVALIDDATA;
294
        off_check += slice_size;
295
    }
296
297
    if (off_check - avctx->discard_damaged_percentage*off_check/100 > src_size)
298
        return AVERROR_INVALIDDATA;
299
300
    avctx->pix_fmt = fmt;
301
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
302
        return ret;
303
304
    for (slice = 0; slice < nslices; slice++) {
305
        slice_size = bytestream2_get_le32(&gb);
306
307
        setup_lru(lru);
308
309
        ret = check_slice_size(avctx, src, src_size, slice_size, off);
310
        if (ret < 0)
311
            return ret;
312
313
        if ((ret = init_get_bits8(&gb2, src + off + 16, slice_size - 16)) < 0)
314
            return ret;
315
316
        line += decode_slice(&gb2, pic, line, avctx->height - line, lru);
317
318
        off += slice_size;
319
    }
320
321
    if (avctx->height - line) {
322
        avpriv_request_sample(avctx, "Not enough slice data available");
323
    }
324
325
    return 0;
326
}
327
328
av_always_inline
329
static int dx2_decode_slice_5x5(GetBitContext *gb, AVFrame *frame,
330
                                int line, int left, uint8_t lru[3][8],
331
                                int is_565)
332
{
333
    int x, y;
334
    int r, g, b;
335
    int width    = frame->width;
336
    int stride   = frame->linesize[0];
337
    uint8_t *dst = frame->data[0] + stride * line;
338
339
    for (y = 0; y < left && get_bits_left(gb) > 6 * width; y++) {
340
        for (x = 0; x < width; x++) {
341
            b = decode_sym_565(gb, lru[0], 5);
342
            g = decode_sym_565(gb, lru[1], is_565 ? 6 : 5);
343
            r = decode_sym_565(gb, lru[2], 5);
344
            dst[x * 3 + 0] = (r << 3) | (r >> 2);
345
            dst[x * 3 + 1] = is_565 ? (g << 2) | (g >> 4) : (g << 3) | (g >> 2);
346
            dst[x * 3 + 2] = (b << 3) | (b >> 2);
347
        }
348
349
        dst += stride;
350
    }
351
352
    return y;
353
}
354
355
static void setup_lru_555(uint8_t lru[3][8])
356
{
357
    memcpy(lru[0], def_lru_555, 8 * sizeof(*def_lru));
358
    memcpy(lru[1], def_lru_555, 8 * sizeof(*def_lru));
359
    memcpy(lru[2], def_lru_555, 8 * sizeof(*def_lru));
360
}
361
362
static void setup_lru_565(uint8_t lru[3][8])
363
{
364
    memcpy(lru[0], def_lru_555, 8 * sizeof(*def_lru));
365
    memcpy(lru[1], def_lru_565, 8 * sizeof(*def_lru));
366
    memcpy(lru[2], def_lru_555, 8 * sizeof(*def_lru));
367
}
368
369
static int dx2_decode_slice_555(GetBitContext *gb, AVFrame *frame,
370
                                int line, int left, uint8_t lru[3][8])
371
{
372
    return dx2_decode_slice_5x5(gb, frame, line, left, lru, 0);
373
}
374
375
static int dx2_decode_slice_565(GetBitContext *gb, AVFrame *frame,
376
                                int line, int left, uint8_t lru[3][8])
377
{
378
    return dx2_decode_slice_5x5(gb, frame, line, left, lru, 1);
379
}
380
381
static int dxtory_decode_v2_565(AVCodecContext *avctx, AVFrame *pic,
382
                                const uint8_t *src, int src_size, int is_565)
383
{
384
    enum AVPixelFormat fmt = AV_PIX_FMT_RGB24;
385
    if (is_565)
386
        return dxtory_decode_v2(avctx, pic, src, src_size,
387
                                dx2_decode_slice_565,
388
                                setup_lru_565,
389
                                fmt);
390
    else
391
        return dxtory_decode_v2(avctx, pic, src, src_size,
392
                                dx2_decode_slice_555,
393
                                setup_lru_555,
394
                                fmt);
395
}
396
397
static int dx2_decode_slice_rgb(GetBitContext *gb, AVFrame *frame,
398
                                int line, int left, uint8_t lru[3][8])
399
{
400
    int x, y;
401
    int width    = frame->width;
402
    int stride   = frame->linesize[0];
403
    uint8_t *dst = frame->data[0] + stride * line;
404
405
    for (y = 0; y < left && get_bits_left(gb) > 6 * width; y++) {
406
        for (x = 0; x < width; x++) {
407
            dst[x * 3 + 0] = decode_sym(gb, lru[0]);
408
            dst[x * 3 + 1] = decode_sym(gb, lru[1]);
409
            dst[x * 3 + 2] = decode_sym(gb, lru[2]);
410
        }
411
412
        dst += stride;
413
    }
414
415
    return y;
416
}
417
418
static void default_setup_lru(uint8_t lru[3][8])
419
{
420
    int i;
421
422
    for (i = 0; i < 3; i++)
423
        memcpy(lru[i], def_lru, 8 * sizeof(*def_lru));
424
}
425
426
static int dxtory_decode_v2_rgb(AVCodecContext *avctx, AVFrame *pic,
427
                                const uint8_t *src, int src_size)
428
{
429
    return dxtory_decode_v2(avctx, pic, src, src_size,
430
                            dx2_decode_slice_rgb,
431
                            default_setup_lru,
432
                            AV_PIX_FMT_BGR24);
433
}
434
435
static int dx2_decode_slice_410(GetBitContext *gb, AVFrame *frame,
436
                                int line, int left,
437
                                uint8_t lru[3][8])
438
{
439
    int x, y, i, j;
440
    int width   = frame->width;
441
442
    int ystride = frame->linesize[0];
443
    int ustride = frame->linesize[1];
444
    int vstride = frame->linesize[2];
445
446
    uint8_t *Y  = frame->data[0] + ystride * line;
447
    uint8_t *U  = frame->data[1] + (ustride >> 2) * line;
448
    uint8_t *V  = frame->data[2] + (vstride >> 2) * line;
449
450
    for (y = 0; y < left - 3 && get_bits_left(gb) > 9 * width; y += 4) {
451
        for (x = 0; x < width; x += 4) {
452
            for (j = 0; j < 4; j++)
453
                for (i = 0; i < 4; i++)
454
                    Y[x + i + j * ystride] = decode_sym(gb, lru[0]);
455
            U[x >> 2] = decode_sym(gb, lru[1]) ^ 0x80;
456
            V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80;
457
        }
458
459
        Y += ystride << 2;
460
        U += ustride;
461
        V += vstride;
462
    }
463
464
    return y;
465
}
466
467
468
static int dxtory_decode_v2_410(AVCodecContext *avctx, AVFrame *pic,
469
                                const uint8_t *src, int src_size)
470
{
471
    return dxtory_decode_v2(avctx, pic, src, src_size,
472
                            dx2_decode_slice_410,
473
                            default_setup_lru,
474
                            AV_PIX_FMT_YUV410P);
475
}
476
477
static int dx2_decode_slice_420(GetBitContext *gb, AVFrame *frame,
478
                                int line, int left,
479
                                uint8_t lru[3][8])
480
{
481
    int x, y;
482
483
    int width    = frame->width;
484
485
    int ystride = frame->linesize[0];
486
    int ustride = frame->linesize[1];
487
    int vstride = frame->linesize[2];
488
489
    uint8_t *Y  = frame->data[0] + ystride * line;
490
    uint8_t *U  = frame->data[1] + (ustride >> 1) * line;
491
    uint8_t *V  = frame->data[2] + (vstride >> 1) * line;
492
493
494
    for (y = 0; y < left - 1 && get_bits_left(gb) > 6 * width; y += 2) {
495
        for (x = 0; x < width; x += 2) {
496
            Y[x + 0 + 0 * ystride] = decode_sym(gb, lru[0]);
497
            Y[x + 1 + 0 * ystride] = decode_sym(gb, lru[0]);
498
            Y[x + 0 + 1 * ystride] = decode_sym(gb, lru[0]);
499
            Y[x + 1 + 1 * ystride] = decode_sym(gb, lru[0]);
500
            U[x >> 1] = decode_sym(gb, lru[1]) ^ 0x80;
501
            V[x >> 1] = decode_sym(gb, lru[2]) ^ 0x80;
502
        }
503
504
        Y += ystride << 1;
505
        U += ustride;
506
        V += vstride;
507
    }
508
509
    return y;
510
}
511
512
static int dxtory_decode_v2_420(AVCodecContext *avctx, AVFrame *pic,
513
                                const uint8_t *src, int src_size)
514
{
515
    return dxtory_decode_v2(avctx, pic, src, src_size,
516
                            dx2_decode_slice_420,
517
                            default_setup_lru,
518
                            AV_PIX_FMT_YUV420P);
519
}
520
521
static int dx2_decode_slice_444(GetBitContext *gb, AVFrame *frame,
522
                                int line, int left,
523
                                uint8_t lru[3][8])
524
{
525
    int x, y;
526
527
    int width   = frame->width;
528
529
    int ystride = frame->linesize[0];
530
    int ustride = frame->linesize[1];
531
    int vstride = frame->linesize[2];
532
533
    uint8_t *Y  = frame->data[0] + ystride * line;
534
    uint8_t *U  = frame->data[1] + ustride * line;
535
    uint8_t *V  = frame->data[2] + vstride * line;
536
537
    for (y = 0; y < left && get_bits_left(gb) > 6 * width; y++) {
538
        for (x = 0; x < width; x++) {
539
            Y[x] = decode_sym(gb, lru[0]);
540
            U[x] = decode_sym(gb, lru[1]) ^ 0x80;
541
            V[x] = decode_sym(gb, lru[2]) ^ 0x80;
542
        }
543
544
        Y += ystride;
545
        U += ustride;
546
        V += vstride;
547
    }
548
549
    return y;
550
}
551
552
static int dxtory_decode_v2_444(AVCodecContext *avctx, AVFrame *pic,
553
                                const uint8_t *src, int src_size)
554
{
555
    return dxtory_decode_v2(avctx, pic, src, src_size,
556
                            dx2_decode_slice_444,
557
                            default_setup_lru,
558
                            AV_PIX_FMT_YUV444P);
559
}
560
561
2
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
562
                        AVPacket *avpkt)
563
{
564
2
    AVFrame *pic = data;
565
2
    const uint8_t *src = avpkt->data;
566
    int ret;
567
568
2
    if (avpkt->size < 16) {
569
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
570
        return AVERROR_INVALIDDATA;
571
    }
572
573



2
    switch (AV_RB32(src)) {
574
    case 0x01000001:
575
        ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
576
                                   AV_PIX_FMT_BGR24, 3);
577
        break;
578
    case 0x01000009:
579
        ret = dxtory_decode_v2_rgb(avctx, pic, src + 16, avpkt->size - 16);
580
        break;
581
2
    case 0x02000001:
582
2
        ret = dxtory_decode_v1_420(avctx, pic, src + 16, avpkt->size - 16);
583
2
        break;
584
    case 0x02000009:
585
        ret = dxtory_decode_v2_420(avctx, pic, src + 16, avpkt->size - 16);
586
        break;
587
    case 0x03000001:
588
        ret = dxtory_decode_v1_410(avctx, pic, src + 16, avpkt->size - 16);
589
        break;
590
    case 0x03000009:
591
        ret = dxtory_decode_v2_410(avctx, pic, src + 16, avpkt->size - 16);
592
        break;
593
    case 0x04000001:
594
        ret = dxtory_decode_v1_444(avctx, pic, src + 16, avpkt->size - 16);
595
        break;
596
    case 0x04000009:
597
        ret = dxtory_decode_v2_444(avctx, pic, src + 16, avpkt->size - 16);
598
        break;
599
    case 0x17000001:
600
        ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
601
                                   AV_PIX_FMT_RGB565LE, 2);
602
        break;
603
    case 0x17000009:
604
        ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 1);
605
        break;
606
    case 0x18000001:
607
    case 0x19000001:
608
        ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
609
                                   AV_PIX_FMT_RGB555LE, 2);
610
        break;
611
    case 0x18000009:
612
    case 0x19000009:
613
        ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 0);
614
        break;
615
    default:
616
        avpriv_request_sample(avctx, "Frame header %"PRIX32, AV_RB32(src));
617
        return AVERROR_PATCHWELCOME;
618
    }
619
620
2
    if (ret)
621
        return ret;
622
623
2
    pic->pict_type = AV_PICTURE_TYPE_I;
624
2
    pic->key_frame = 1;
625
2
    *got_frame = 1;
626
627
2
    return avpkt->size;
628
}
629
630
AVCodec ff_dxtory_decoder = {
631
    .name           = "dxtory",
632
    .long_name      = NULL_IF_CONFIG_SMALL("Dxtory"),
633
    .type           = AVMEDIA_TYPE_VIDEO,
634
    .id             = AV_CODEC_ID_DXTORY,
635
    .decode         = decode_frame,
636
    .capabilities   = AV_CODEC_CAP_DR1,
637
};