4 * Copyright (c) 2011 Konstantin Shishkov
6 * This file is part of FFmpeg.
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.
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.
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
25 #include "libavutil/common.h"
26 #include "libavutil/intreadwrite.h"
28 #define BITSTREAM_READER_LE
30 #include "bytestream.h"
36 static int64_t get_raw_size(enum AVPixelFormat fmt, int width, int height)
39 case AV_PIX_FMT_RGB555LE:
40 case AV_PIX_FMT_RGB565LE:
41 return width * height * 2LL;
42 case AV_PIX_FMT_RGB24:
43 case AV_PIX_FMT_BGR24:
44 case AV_PIX_FMT_YUV444P:
45 return width * height * 3LL;
46 case AV_PIX_FMT_YUV420P:
47 return (int64_t)(width * height) + 2 * AV_CEIL_RSHIFT(width, 1) * AV_CEIL_RSHIFT(height, 1);
48 case AV_PIX_FMT_YUV410P:
49 return (int64_t)(width * height) + 2 * AV_CEIL_RSHIFT(width, 2) * AV_CEIL_RSHIFT(height, 2);
55 static void do_vflip(AVCodecContext *avctx, AVFrame *pic, int vflip)
60 switch (pic->format) {
61 case AV_PIX_FMT_YUV444P:
62 pic->data[1] += (avctx->height - 1) * pic->linesize[1];
63 pic->linesize[1] = -pic->linesize[1];
64 pic->data[2] += (avctx->height - 1) * pic->linesize[2];
65 pic->linesize[2] = -pic->linesize[2];
66 case AV_PIX_FMT_RGB555LE:
67 case AV_PIX_FMT_RGB565LE:
68 case AV_PIX_FMT_BGR24:
69 case AV_PIX_FMT_RGB24:
70 pic->data[0] += (avctx->height - 1) * pic->linesize[0];
71 pic->linesize[0] = -pic->linesize[0];
73 case AV_PIX_FMT_YUV410P:
74 pic->data[0] += (avctx->height - 1) * pic->linesize[0];
75 pic->linesize[0] = -pic->linesize[0];
76 pic->data[1] += (AV_CEIL_RSHIFT(avctx->height, 2) - 1) * pic->linesize[1];
77 pic->linesize[1] = -pic->linesize[1];
78 pic->data[2] += (AV_CEIL_RSHIFT(avctx->height, 2) - 1) * pic->linesize[2];
79 pic->linesize[2] = -pic->linesize[2];
81 case AV_PIX_FMT_YUV420P:
82 pic->data[0] += (avctx->height - 1) * pic->linesize[0];
83 pic->linesize[0] = -pic->linesize[0];
84 pic->data[1] += (AV_CEIL_RSHIFT(avctx->height, 1) - 1) * pic->linesize[1];
85 pic->linesize[1] = -pic->linesize[1];
86 pic->data[2] += (AV_CEIL_RSHIFT(avctx->height, 1) - 1) * pic->linesize[2];
87 pic->linesize[2] = -pic->linesize[2];
92 static int dxtory_decode_v1_rgb(AVCodecContext *avctx, AVFrame *pic,
93 const uint8_t *src, int src_size,
94 int id, int bpp, uint32_t vflipped)
96 ThreadFrame frame = { .f = pic };
101 if (src_size < get_raw_size(id, avctx->width, avctx->height)) {
102 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
103 return AVERROR_INVALIDDATA;
107 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
110 do_vflip(avctx, pic, vflipped);
113 for (h = 0; h < avctx->height; h++) {
114 memcpy(dst, src, avctx->width * bpp);
115 src += avctx->width * bpp;
116 dst += pic->linesize[0];
119 do_vflip(avctx, pic, vflipped);
124 static int dxtory_decode_v1_410(AVCodecContext *avctx, AVFrame *pic,
125 const uint8_t *src, int src_size,
128 ThreadFrame frame = { .f = pic };
130 uint8_t *Y1, *Y2, *Y3, *Y4, *U, *V;
131 int height, width, hmargin, vmargin;
135 if (src_size < get_raw_size(AV_PIX_FMT_YUV410P, avctx->width, avctx->height)) {
136 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
137 return AVERROR_INVALIDDATA;
140 avctx->pix_fmt = AV_PIX_FMT_YUV410P;
141 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
144 do_vflip(avctx, pic, vflipped);
146 height = avctx->height & ~3;
147 width = avctx->width & ~3;
148 hmargin = avctx->width - width;
149 vmargin = avctx->height - height;
150 huvborder = AV_CEIL_RSHIFT(avctx->width, 2) - 1;
153 Y2 = pic->data[0] + pic->linesize[0];
154 Y3 = pic->data[0] + pic->linesize[0] * 2;
155 Y4 = pic->data[0] + pic->linesize[0] * 3;
158 for (h = 0; h < height; h += 4) {
159 for (w = 0; w < width; w += 4) {
160 AV_COPY32U(Y1 + w, src);
161 AV_COPY32U(Y2 + w, src + 4);
162 AV_COPY32U(Y3 + w, src + 8);
163 AV_COPY32U(Y4 + w, src + 12);
164 U[w >> 2] = src[16] + 0x80;
165 V[w >> 2] = src[17] + 0x80;
169 for (w = 0; w < hmargin; w++) {
170 Y1[width + w] = src[w];
171 Y2[width + w] = src[w + hmargin * 1];
172 Y3[width + w] = src[w + hmargin * 2];
173 Y4[width + w] = src[w + hmargin * 3];
176 U[huvborder] = src[0] + 0x80;
177 V[huvborder] = src[1] + 0x80;
180 Y1 += pic->linesize[0] * 4;
181 Y2 += pic->linesize[0] * 4;
182 Y3 += pic->linesize[0] * 4;
183 Y4 += pic->linesize[0] * 4;
184 U += pic->linesize[1];
185 V += pic->linesize[2];
189 for (w = 0; w < width; w += 4) {
190 AV_COPY32U(Y1 + w, src);
192 AV_COPY32U(Y2 + w, src + 4);
194 AV_COPY32U(Y3 + w, src + 8);
196 U[w >> 2] = src[0] + 0x80;
197 V[w >> 2] = src[1] + 0x80;
201 for (w = 0; w < hmargin; w++) {
202 AV_COPY32U(Y1 + w, src);
204 AV_COPY32U(Y2 + w, src + 4);
206 AV_COPY32U(Y3 + w, src + 8);
209 U[huvborder] = src[0] + 0x80;
210 V[huvborder] = src[1] + 0x80;
215 do_vflip(avctx, pic, vflipped);
220 static int dxtory_decode_v1_420(AVCodecContext *avctx, AVFrame *pic,
221 const uint8_t *src, int src_size,
224 ThreadFrame frame = { .f = pic };
226 uint8_t *Y1, *Y2, *U, *V;
227 int height, width, hmargin, vmargin;
231 if (src_size < get_raw_size(AV_PIX_FMT_YUV420P, avctx->width, avctx->height)) {
232 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
233 return AVERROR_INVALIDDATA;
236 avctx->pix_fmt = AV_PIX_FMT_YUV420P;
237 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
240 do_vflip(avctx, pic, vflipped);
242 height = avctx->height & ~1;
243 width = avctx->width & ~1;
244 hmargin = avctx->width - width;
245 vmargin = avctx->height - height;
246 huvborder = AV_CEIL_RSHIFT(avctx->width, 1) - 1;
249 Y2 = pic->data[0] + pic->linesize[0];
252 for (h = 0; h < height; h += 2) {
253 for (w = 0; w < width; w += 2) {
254 AV_COPY16(Y1 + w, src);
255 AV_COPY16(Y2 + w, src + 2);
256 U[w >> 1] = src[4] + 0x80;
257 V[w >> 1] = src[5] + 0x80;
261 Y1[width + 1] = src[0];
262 Y2[width + 1] = src[1];
263 U[huvborder] = src[2] + 0x80;
264 V[huvborder] = src[3] + 0x80;
267 Y1 += pic->linesize[0] * 2;
268 Y2 += pic->linesize[0] * 2;
269 U += pic->linesize[1];
270 V += pic->linesize[2];
274 for (w = 0; w < width; w += 2) {
275 AV_COPY16U(Y1 + w, src);
276 U[w >> 1] = src[0] + 0x80;
277 V[w >> 1] = src[1] + 0x80;
282 U[huvborder] = src[1] + 0x80;
283 V[huvborder] = src[2] + 0x80;
288 do_vflip(avctx, pic, vflipped);
293 static int dxtory_decode_v1_444(AVCodecContext *avctx, AVFrame *pic,
294 const uint8_t *src, int src_size,
297 ThreadFrame frame = { .f = pic };
302 if (src_size < get_raw_size(AV_PIX_FMT_YUV444P, avctx->width, avctx->height)) {
303 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
304 return AVERROR_INVALIDDATA;
307 avctx->pix_fmt = AV_PIX_FMT_YUV444P;
308 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
311 do_vflip(avctx, pic, vflipped);
316 for (h = 0; h < avctx->height; h++) {
317 for (w = 0; w < avctx->width; w++) {
319 U[w] = *src++ ^ 0x80;
320 V[w] = *src++ ^ 0x80;
322 Y += pic->linesize[0];
323 U += pic->linesize[1];
324 V += pic->linesize[2];
327 do_vflip(avctx, pic, vflipped);
332 static const uint8_t def_lru[8] = { 0x00, 0x20, 0x40, 0x60, 0x80, 0xA0, 0xC0, 0xFF };
333 static const uint8_t def_lru_555[8] = { 0x00, 0x08, 0x10, 0x18, 0x1F };
334 static const uint8_t def_lru_565[8] = { 0x00, 0x08, 0x10, 0x20, 0x30, 0x3F };
336 static inline uint8_t decode_sym(GetBitContext *gb, uint8_t lru[8])
340 c = get_unary(gb, 0, 8);
342 val = get_bits(gb, 8);
343 memmove(lru + 1, lru, sizeof(*lru) * (8 - 1));
346 memmove(lru + 1, lru, sizeof(*lru) * (c - 1));
353 static int check_slice_size(AVCodecContext *avctx,
354 const uint8_t *src, int src_size,
355 int slice_size, int off)
359 if (slice_size > src_size - off) {
360 av_log(avctx, AV_LOG_ERROR,
361 "invalid slice size %d (only %d bytes left)\n",
362 slice_size, src_size - off);
363 return AVERROR_INVALIDDATA;
365 if (slice_size <= 16) {
366 av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n",
368 return AVERROR_INVALIDDATA;
371 cur_slice_size = AV_RL32(src + off);
372 if (cur_slice_size != slice_size - 16) {
373 av_log(avctx, AV_LOG_ERROR,
374 "Slice sizes mismatch: got %d instead of %d\n",
375 cur_slice_size, slice_size - 16);
381 static int load_buffer(AVCodecContext *avctx,
382 const uint8_t *src, int src_size,
384 int *nslices, int *off)
386 bytestream2_init(gb, src, src_size);
387 *nslices = bytestream2_get_le16(gb);
388 *off = FFALIGN(*nslices * 4 + 2, 16);
389 if (src_size < *off) {
390 av_log(avctx, AV_LOG_ERROR, "no slice data\n");
391 return AVERROR_INVALIDDATA;
395 avpriv_request_sample(avctx, "%d slices for %dx%d", *nslices,
396 avctx->width, avctx->height);
397 return AVERROR_PATCHWELCOME;
403 static inline uint8_t decode_sym_565(GetBitContext *gb, uint8_t lru[8],
408 c = get_unary(gb, 0, bits);
410 val = get_bits(gb, bits);
411 memmove(lru + 1, lru, sizeof(*lru) * (6 - 1));
414 memmove(lru + 1, lru, sizeof(*lru) * (c - 1));
421 typedef int (*decode_slice_func)(GetBitContext *gb, AVFrame *frame,
422 int line, int height, uint8_t lru[3][8]);
424 typedef void (*setup_lru_func)(uint8_t lru[3][8]);
426 static int dxtory_decode_v2(AVCodecContext *avctx, AVFrame *pic,
427 const uint8_t *src, int src_size,
428 decode_slice_func decode_slice,
429 setup_lru_func setup_lru,
430 enum AVPixelFormat fmt,
433 ThreadFrame frame = { .f = pic };
434 GetByteContext gb, gb_check;
436 int nslices, slice, line = 0;
437 uint32_t off, slice_size;
442 ret = load_buffer(avctx, src, src_size, &gb, &nslices, &off);
448 for (slice = 0; slice < nslices; slice++) {
449 slice_size = bytestream2_get_le32(&gb_check);
451 if (slice_size <= 16 + (avctx->height * avctx->width / (8 * nslices)))
452 return AVERROR_INVALIDDATA;
453 off_check += slice_size;
456 if (off_check - avctx->discard_damaged_percentage*off_check/100 > src_size)
457 return AVERROR_INVALIDDATA;
459 avctx->pix_fmt = fmt;
460 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
463 do_vflip(avctx, pic, vflipped);
465 for (slice = 0; slice < nslices; slice++) {
466 slice_size = bytestream2_get_le32(&gb);
470 ret = check_slice_size(avctx, src, src_size, slice_size, off);
474 if ((ret = init_get_bits8(&gb2, src + off + 16, slice_size - 16)) < 0)
477 line += decode_slice(&gb2, pic, line, avctx->height - line, lru);
482 if (avctx->height - line) {
483 avpriv_request_sample(avctx, "Not enough slice data available");
486 do_vflip(avctx, pic, vflipped);
492 static int dx2_decode_slice_5x5(GetBitContext *gb, AVFrame *frame,
493 int line, int left, uint8_t lru[3][8],
498 int width = frame->width;
499 int stride = frame->linesize[0];
500 uint8_t *dst = frame->data[0] + stride * line;
502 for (y = 0; y < left && get_bits_left(gb) >= 3 * width; y++) {
503 for (x = 0; x < width; x++) {
504 b = decode_sym_565(gb, lru[0], 5);
505 g = decode_sym_565(gb, lru[1], is_565 ? 6 : 5);
506 r = decode_sym_565(gb, lru[2], 5);
507 dst[x * 3 + 0] = (r << 3) | (r >> 2);
508 dst[x * 3 + 1] = is_565 ? (g << 2) | (g >> 4) : (g << 3) | (g >> 2);
509 dst[x * 3 + 2] = (b << 3) | (b >> 2);
518 static void setup_lru_555(uint8_t lru[3][8])
520 memcpy(lru[0], def_lru_555, 8 * sizeof(*def_lru));
521 memcpy(lru[1], def_lru_555, 8 * sizeof(*def_lru));
522 memcpy(lru[2], def_lru_555, 8 * sizeof(*def_lru));
525 static void setup_lru_565(uint8_t lru[3][8])
527 memcpy(lru[0], def_lru_555, 8 * sizeof(*def_lru));
528 memcpy(lru[1], def_lru_565, 8 * sizeof(*def_lru));
529 memcpy(lru[2], def_lru_555, 8 * sizeof(*def_lru));
532 static int dx2_decode_slice_555(GetBitContext *gb, AVFrame *frame,
533 int line, int left, uint8_t lru[3][8])
535 return dx2_decode_slice_5x5(gb, frame, line, left, lru, 0);
538 static int dx2_decode_slice_565(GetBitContext *gb, AVFrame *frame,
539 int line, int left, uint8_t lru[3][8])
541 return dx2_decode_slice_5x5(gb, frame, line, left, lru, 1);
544 static int dxtory_decode_v2_565(AVCodecContext *avctx, AVFrame *pic,
545 const uint8_t *src, int src_size, int is_565,
548 enum AVPixelFormat fmt = AV_PIX_FMT_RGB24;
550 return dxtory_decode_v2(avctx, pic, src, src_size,
551 dx2_decode_slice_565,
555 return dxtory_decode_v2(avctx, pic, src, src_size,
556 dx2_decode_slice_555,
561 static int dx2_decode_slice_rgb(GetBitContext *gb, AVFrame *frame,
562 int line, int left, uint8_t lru[3][8])
565 int width = frame->width;
566 int stride = frame->linesize[0];
567 uint8_t *dst = frame->data[0] + stride * line;
569 for (y = 0; y < left && get_bits_left(gb) >= 3 * width; y++) {
570 for (x = 0; x < width; x++) {
571 dst[x * 3 + 0] = decode_sym(gb, lru[0]);
572 dst[x * 3 + 1] = decode_sym(gb, lru[1]);
573 dst[x * 3 + 2] = decode_sym(gb, lru[2]);
582 static void default_setup_lru(uint8_t lru[3][8])
586 for (i = 0; i < 3; i++)
587 memcpy(lru[i], def_lru, 8 * sizeof(*def_lru));
590 static int dxtory_decode_v2_rgb(AVCodecContext *avctx, AVFrame *pic,
591 const uint8_t *src, int src_size,
594 return dxtory_decode_v2(avctx, pic, src, src_size,
595 dx2_decode_slice_rgb,
597 AV_PIX_FMT_BGR24, vflipped);
600 static int dx2_decode_slice_410(GetBitContext *gb, AVFrame *frame,
605 int width = frame->width;
607 int ystride = frame->linesize[0];
608 int ustride = frame->linesize[1];
609 int vstride = frame->linesize[2];
611 uint8_t *Y = frame->data[0] + ystride * line;
612 uint8_t *U = frame->data[1] + (ustride >> 2) * line;
613 uint8_t *V = frame->data[2] + (vstride >> 2) * line;
615 int h, w, hmargin, vmargin;
618 h = frame->height & ~3;
619 w = frame->width & ~3;
620 hmargin = frame->width - w;
621 vmargin = frame->height - h;
622 huvborder = AV_CEIL_RSHIFT(frame->width, 2) - 1;
624 for (y = 0; y < left - 3 && get_bits_left(gb) >= 18 * w / 4 + hmargin * 4 + (!!hmargin * 2); y += 4) {
625 for (x = 0; x < w; x += 4) {
626 for (j = 0; j < 4; j++)
627 for (i = 0; i < 4; i++)
628 Y[x + i + j * ystride] = decode_sym(gb, lru[0]);
629 U[x >> 2] = decode_sym(gb, lru[1]) ^ 0x80;
630 V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80;
633 for (j = 0; j < 4; j++)
634 for (i = 0; i < hmargin; i++)
635 Y[x + i + j * ystride] = decode_sym(gb, lru[0]);
636 U[huvborder] = decode_sym(gb, lru[1]) ^ 0x80;
637 V[huvborder] = decode_sym(gb, lru[2]) ^ 0x80;
645 if (vmargin && y + vmargin == left) {
646 for (x = 0; x < width; x += 4) {
647 for (j = 0; j < vmargin; j++)
648 for (i = 0; i < 4; i++)
649 Y[x + i + j * ystride] = decode_sym(gb, lru[0]);
650 U[x >> 2] = decode_sym(gb, lru[1]) ^ 0x80;
651 V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80;
654 for (j = 0; j < vmargin; j++) {
655 for (i = 0; i < hmargin; i++)
656 Y[x + i + j * ystride] = decode_sym(gb, lru[0]);
658 U[huvborder] = decode_sym(gb, lru[1]) ^ 0x80;
659 V[huvborder] = decode_sym(gb, lru[2]) ^ 0x80;
669 static int dxtory_decode_v2_410(AVCodecContext *avctx, AVFrame *pic,
670 const uint8_t *src, int src_size,
673 return dxtory_decode_v2(avctx, pic, src, src_size,
674 dx2_decode_slice_410,
676 AV_PIX_FMT_YUV410P, vflipped);
679 static int dx2_decode_slice_420(GetBitContext *gb, AVFrame *frame,
685 int width = frame->width;
687 int ystride = frame->linesize[0];
688 int ustride = frame->linesize[1];
689 int vstride = frame->linesize[2];
691 uint8_t *Y = frame->data[0] + ystride * line;
692 uint8_t *U = frame->data[1] + (ustride >> 1) * line;
693 uint8_t *V = frame->data[2] + (vstride >> 1) * line;
695 int h, w, hmargin, vmargin;
698 h = frame->height & ~1;
699 w = frame->width & ~1;
700 hmargin = frame->width - w;
701 vmargin = frame->height - h;
702 huvborder = AV_CEIL_RSHIFT(frame->width, 1) - 1;
704 for (y = 0; y < left - 1 && get_bits_left(gb) >= 3 * w + hmargin * 4; y += 2) {
705 for (x = 0; x < w; x += 2) {
706 Y[x + 0 + 0 * ystride] = decode_sym(gb, lru[0]);
707 Y[x + 1 + 0 * ystride] = decode_sym(gb, lru[0]);
708 Y[x + 0 + 1 * ystride] = decode_sym(gb, lru[0]);
709 Y[x + 1 + 1 * ystride] = decode_sym(gb, lru[0]);
710 U[x >> 1] = decode_sym(gb, lru[1]) ^ 0x80;
711 V[x >> 1] = decode_sym(gb, lru[2]) ^ 0x80;
714 Y[x + 0 * ystride] = decode_sym(gb, lru[0]);
715 Y[x + 1 * ystride] = decode_sym(gb, lru[0]);
716 U[huvborder] = decode_sym(gb, lru[1]) ^ 0x80;
717 V[huvborder] = decode_sym(gb, lru[2]) ^ 0x80;
726 for (x = 0; x < width; x += 2) {
727 Y[x + 0] = decode_sym(gb, lru[0]);
728 U[x >> 1] = decode_sym(gb, lru[1]) ^ 0x80;
729 V[x >> 1] = decode_sym(gb, lru[2]) ^ 0x80;
732 Y[x] = decode_sym(gb, lru[0]);
733 U[huvborder] = decode_sym(gb, lru[1]) ^ 0x80;
734 V[huvborder] = decode_sym(gb, lru[2]) ^ 0x80;
741 static int dxtory_decode_v2_420(AVCodecContext *avctx, AVFrame *pic,
742 const uint8_t *src, int src_size,
745 return dxtory_decode_v2(avctx, pic, src, src_size,
746 dx2_decode_slice_420,
748 AV_PIX_FMT_YUV420P, vflipped);
751 static int dx2_decode_slice_444(GetBitContext *gb, AVFrame *frame,
757 int width = frame->width;
759 int ystride = frame->linesize[0];
760 int ustride = frame->linesize[1];
761 int vstride = frame->linesize[2];
763 uint8_t *Y = frame->data[0] + ystride * line;
764 uint8_t *U = frame->data[1] + ustride * line;
765 uint8_t *V = frame->data[2] + vstride * line;
767 for (y = 0; y < left && get_bits_left(gb) >= 3 * width; y++) {
768 for (x = 0; x < width; x++) {
769 Y[x] = decode_sym(gb, lru[0]);
770 U[x] = decode_sym(gb, lru[1]) ^ 0x80;
771 V[x] = decode_sym(gb, lru[2]) ^ 0x80;
782 static int dxtory_decode_v2_444(AVCodecContext *avctx, AVFrame *pic,
783 const uint8_t *src, int src_size,
786 return dxtory_decode_v2(avctx, pic, src, src_size,
787 dx2_decode_slice_444,
789 AV_PIX_FMT_YUV444P, vflipped);
792 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
796 const uint8_t *src = avpkt->data;
800 if (avpkt->size < 16) {
801 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
802 return AVERROR_INVALIDDATA;
806 vflipped = !!(type & 0x20);
811 ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
812 AV_PIX_FMT_BGR24, 3, vflipped);
816 ret = dxtory_decode_v2_rgb(avctx, pic, src + 16, avpkt->size - 16, vflipped);
820 ret = dxtory_decode_v1_420(avctx, pic, src + 16, avpkt->size - 16, vflipped);
824 ret = dxtory_decode_v2_420(avctx, pic, src + 16, avpkt->size - 16, vflipped);
828 ret = dxtory_decode_v1_410(avctx, pic, src + 16, avpkt->size - 16, vflipped);
832 ret = dxtory_decode_v2_410(avctx, pic, src + 16, avpkt->size - 16, vflipped);
836 ret = dxtory_decode_v1_444(avctx, pic, src + 16, avpkt->size - 16, vflipped);
840 ret = dxtory_decode_v2_444(avctx, pic, src + 16, avpkt->size - 16, vflipped);
844 ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
845 AV_PIX_FMT_RGB565LE, 2, vflipped);
849 ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 1, vflipped);
855 ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
856 AV_PIX_FMT_RGB555LE, 2, vflipped);
862 ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 0, vflipped);
865 avpriv_request_sample(avctx, "Frame header %"PRIX32, type);
866 return AVERROR_PATCHWELCOME;
872 pic->pict_type = AV_PICTURE_TYPE_I;
879 const AVCodec ff_dxtory_decoder = {
881 .long_name = NULL_IF_CONFIG_SMALL("Dxtory"),
882 .type = AVMEDIA_TYPE_VIDEO,
883 .id = AV_CODEC_ID_DXTORY,
884 .decode = decode_frame,
885 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,