1 /*
2 * Flash Screen Video decoder
3 * Copyright (C) 2004 Alex Beregszaszi
4 * Copyright (C) 2006 Benjamin Larsson
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 /**
24 * @file
25 * Flash Screen Video decoder
26 * @author Alex Beregszaszi
27 * @author Benjamin Larsson
28 * @author Daniel Verkamp
29 * @author Konstantin Shishkov
30 *
31 * A description of the bitstream format for Flash Screen Video version 1/2
32 * is part of the SWF File Format Specification (version 10), which can be
33 * downloaded from http://www.adobe.com/devnet/swf.html.
34 */
35
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <zlib.h>
39
40 #include "libavutil/intreadwrite.h"
41 #include "avcodec.h"
42 #include "bytestream.h"
43 #include "get_bits.h"
44 #include "internal.h"
45
46 typedef struct BlockInfo {
47 uint8_t *pos;
48 int size;
49 } BlockInfo;
50
51 typedef struct FlashSVContext {
52 AVCodecContext *avctx;
53 AVFrame *frame;
54 int image_width, image_height;
55 int block_width, block_height;
56 uint8_t *tmpblock;
57 int block_size;
58 z_stream zstream;
59 int ver;
60 const uint32_t *pal;
61 int is_keyframe;
62 uint8_t *keyframedata;
63 uint8_t *keyframe;
64 BlockInfo *blocks;
65 uint8_t *deflate_block;
66 int deflate_block_size;
67 int color_depth;
68 int zlibprime_curr, zlibprime_prev;
69 int diff_start, diff_height;
70 } FlashSVContext;
71
decode_hybrid(const uint8_t * sptr,const uint8_t * sptr_end,uint8_t * dptr,int dx,int dy,int h,int w,int stride,const uint32_t * pal)72 static int decode_hybrid(const uint8_t *sptr, const uint8_t *sptr_end, uint8_t *dptr, int dx, int dy,
73 int h, int w, int stride, const uint32_t *pal)
74 {
75 int x, y;
76 const uint8_t *orig_src = sptr;
77
78 for (y = dx + h; y > dx; y--) {
79 uint8_t *dst = dptr + (y * stride) + dy * 3;
80 for (x = 0; x < w; x++) {
81 if (sptr >= sptr_end)
82 return AVERROR_INVALIDDATA;
83 if (*sptr & 0x80) {
84 /* 15-bit color */
85 unsigned c = AV_RB16(sptr) & ~0x8000;
86 unsigned b = c & 0x1F;
87 unsigned g = (c >> 5) & 0x1F;
88 unsigned r = c >> 10;
89 /* 000aaabb -> aaabbaaa */
90 *dst++ = (b << 3) | (b >> 2);
91 *dst++ = (g << 3) | (g >> 2);
92 *dst++ = (r << 3) | (r >> 2);
93 sptr += 2;
94 } else {
95 /* palette index */
96 uint32_t c = pal[*sptr++];
97 bytestream_put_le24(&dst, c);
98 }
99 }
100 }
101 return sptr - orig_src;
102 }
103
flashsv_decode_end(AVCodecContext * avctx)104 static av_cold int flashsv_decode_end(AVCodecContext *avctx)
105 {
106 FlashSVContext *s = avctx->priv_data;
107 inflateEnd(&s->zstream);
108 /* release the frame if needed */
109 av_frame_free(&s->frame);
110
111 /* free the tmpblock */
112 av_freep(&s->tmpblock);
113
114 return 0;
115 }
116
flashsv_decode_init(AVCodecContext * avctx)117 static av_cold int flashsv_decode_init(AVCodecContext *avctx)
118 {
119 FlashSVContext *s = avctx->priv_data;
120 int zret; // Zlib return code
121
122 s->avctx = avctx;
123 s->zstream.zalloc = Z_NULL;
124 s->zstream.zfree = Z_NULL;
125 s->zstream.opaque = Z_NULL;
126 zret = inflateInit(&s->zstream);
127 if (zret != Z_OK) {
128 av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
129 return 1;
130 }
131 avctx->pix_fmt = AV_PIX_FMT_BGR24;
132
133 s->frame = av_frame_alloc();
134 if (!s->frame) {
135 return AVERROR(ENOMEM);
136 }
137
138 return 0;
139 }
140
flashsv2_prime(FlashSVContext * s,uint8_t * src,int size)141 static int flashsv2_prime(FlashSVContext *s, uint8_t *src, int size)
142 {
143 z_stream zs;
144 int zret; // Zlib return code
145
146 if (!src)
147 return AVERROR_INVALIDDATA;
148
149 zs.zalloc = NULL;
150 zs.zfree = NULL;
151 zs.opaque = NULL;
152
153 s->zstream.next_in = src;
154 s->zstream.avail_in = size;
155 s->zstream.next_out = s->tmpblock;
156 s->zstream.avail_out = s->block_size * 3;
157 inflate(&s->zstream, Z_SYNC_FLUSH);
158
159 if (deflateInit(&zs, 0) != Z_OK)
160 return -1;
161 zs.next_in = s->tmpblock;
162 zs.avail_in = s->block_size * 3 - s->zstream.avail_out;
163 zs.next_out = s->deflate_block;
164 zs.avail_out = s->deflate_block_size;
165 deflate(&zs, Z_SYNC_FLUSH);
166 deflateEnd(&zs);
167
168 if ((zret = inflateReset(&s->zstream)) != Z_OK) {
169 av_log(s->avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);
170 return AVERROR_UNKNOWN;
171 }
172
173 s->zstream.next_in = s->deflate_block;
174 s->zstream.avail_in = s->deflate_block_size - zs.avail_out;
175 s->zstream.next_out = s->tmpblock;
176 s->zstream.avail_out = s->block_size * 3;
177 inflate(&s->zstream, Z_SYNC_FLUSH);
178
179 return 0;
180 }
181
flashsv_decode_block(AVCodecContext * avctx,const AVPacket * avpkt,GetBitContext * gb,int block_size,int width,int height,int x_pos,int y_pos,int blk_idx)182 static int flashsv_decode_block(AVCodecContext *avctx, const AVPacket *avpkt,
183 GetBitContext *gb, int block_size,
184 int width, int height, int x_pos, int y_pos,
185 int blk_idx)
186 {
187 struct FlashSVContext *s = avctx->priv_data;
188 uint8_t *line = s->tmpblock;
189 int k;
190 int ret = inflateReset(&s->zstream);
191 if (ret != Z_OK) {
192 av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", ret);
193 return AVERROR_UNKNOWN;
194 }
195 if (s->zlibprime_curr || s->zlibprime_prev) {
196 ret = flashsv2_prime(s,
197 s->blocks[blk_idx].pos,
198 s->blocks[blk_idx].size);
199 if (ret < 0)
200 return ret;
201 }
202 s->zstream.next_in = avpkt->data + get_bits_count(gb) / 8;
203 s->zstream.avail_in = block_size;
204 s->zstream.next_out = s->tmpblock;
205 s->zstream.avail_out = s->block_size * 3;
206 ret = inflate(&s->zstream, Z_FINISH);
207 if (ret == Z_DATA_ERROR) {
208 av_log(avctx, AV_LOG_ERROR, "Zlib resync occurred\n");
209 inflateSync(&s->zstream);
210 ret = inflate(&s->zstream, Z_FINISH);
211 }
212
213 if (ret != Z_OK && ret != Z_STREAM_END) {
214 //return -1;
215 }
216
217 if (s->is_keyframe) {
218 s->blocks[blk_idx].pos = s->keyframedata + (get_bits_count(gb) / 8);
219 s->blocks[blk_idx].size = block_size;
220 }
221
222 y_pos += s->diff_start;
223
224 if (!s->color_depth) {
225 /* Flash Screen Video stores the image upside down, so copy
226 * lines to destination in reverse order. */
227 for (k = 1; k <= s->diff_height; k++) {
228 memcpy(s->frame->data[0] + x_pos * 3 +
229 (s->image_height - y_pos - k) * s->frame->linesize[0],
230 line, width * 3);
231 /* advance source pointer to next line */
232 line += width * 3;
233 }
234 } else {
235 /* hybrid 15-bit/palette mode */
236 ret = decode_hybrid(s->tmpblock, s->zstream.next_out,
237 s->frame->data[0],
238 s->image_height - (y_pos + 1 + s->diff_height),
239 x_pos, s->diff_height, width,
240 s->frame->linesize[0], s->pal);
241 if (ret < 0) {
242 av_log(avctx, AV_LOG_ERROR, "decode_hybrid failed\n");
243 return ret;
244 }
245 }
246 skip_bits_long(gb, 8 * block_size); /* skip the consumed bits */
247 return 0;
248 }
249
calc_deflate_block_size(int tmpblock_size)250 static int calc_deflate_block_size(int tmpblock_size)
251 {
252 z_stream zstream;
253 int size;
254
255 zstream.zalloc = Z_NULL;
256 zstream.zfree = Z_NULL;
257 zstream.opaque = Z_NULL;
258 if (deflateInit(&zstream, 0) != Z_OK)
259 return -1;
260 size = deflateBound(&zstream, tmpblock_size);
261 deflateEnd(&zstream);
262
263 return size;
264 }
265
flashsv_decode_frame(AVCodecContext * avctx,void * data,int * got_frame,AVPacket * avpkt)266 static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
267 int *got_frame, AVPacket *avpkt)
268 {
269 int buf_size = avpkt->size;
270 FlashSVContext *s = avctx->priv_data;
271 int h_blocks, v_blocks, h_part, v_part, i, j, ret;
272 GetBitContext gb;
273 int last_blockwidth = s->block_width;
274 int last_blockheight= s->block_height;
275
276 /* no supplementary picture */
277 if (buf_size == 0)
278 return 0;
279 if (buf_size < 4)
280 return -1;
281
282 if ((ret = init_get_bits8(&gb, avpkt->data, buf_size)) < 0)
283 return ret;
284
285 /* start to parse the bitstream */
286 s->block_width = 16 * (get_bits(&gb, 4) + 1);
287 s->image_width = get_bits(&gb, 12);
288 s->block_height = 16 * (get_bits(&gb, 4) + 1);
289 s->image_height = get_bits(&gb, 12);
290
291 if ( last_blockwidth != s->block_width
292 || last_blockheight!= s->block_height)
293 av_freep(&s->blocks);
294
295 if (s->ver == 2) {
296 skip_bits(&gb, 6);
297 if (get_bits1(&gb)) {
298 avpriv_request_sample(avctx, "iframe");
299 return AVERROR_PATCHWELCOME;
300 }
301 if (get_bits1(&gb)) {
302 avpriv_request_sample(avctx, "Custom palette");
303 return AVERROR_PATCHWELCOME;
304 }
305 }
306
307 /* calculate number of blocks and size of border (partial) blocks */
308 h_blocks = s->image_width / s->block_width;
309 h_part = s->image_width % s->block_width;
310 v_blocks = s->image_height / s->block_height;
311 v_part = s->image_height % s->block_height;
312
313 /* the block size could change between frames, make sure the buffer
314 * is large enough, if not, get a larger one */
315 if (s->block_size < s->block_width * s->block_height) {
316 int tmpblock_size = 3 * s->block_width * s->block_height, err;
317
318 if ((err = av_reallocp(&s->tmpblock, tmpblock_size)) < 0) {
319 s->block_size = 0;
320 av_log(avctx, AV_LOG_ERROR,
321 "Cannot allocate decompression buffer.\n");
322 return err;
323 }
324 if (s->ver == 2) {
325 s->deflate_block_size = calc_deflate_block_size(tmpblock_size);
326 if (s->deflate_block_size <= 0) {
327 av_log(avctx, AV_LOG_ERROR,
328 "Cannot determine deflate buffer size.\n");
329 return -1;
330 }
331 if ((err = av_reallocp(&s->deflate_block, s->deflate_block_size)) < 0) {
332 s->block_size = 0;
333 av_log(avctx, AV_LOG_ERROR, "Cannot allocate deflate buffer.\n");
334 return err;
335 }
336 }
337 }
338 s->block_size = s->block_width * s->block_height;
339
340 /* initialize the image size once */
341 if (avctx->width == 0 && avctx->height == 0) {
342 if ((ret = ff_set_dimensions(avctx, s->image_width, s->image_height)) < 0)
343 return ret;
344 }
345
346 /* check for changes of image width and image height */
347 if (avctx->width != s->image_width || avctx->height != s->image_height) {
348 av_log(avctx, AV_LOG_ERROR,
349 "Frame width or height differs from first frame!\n");
350 av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d vs ch = %d, cv = %d\n",
351 avctx->height, avctx->width, s->image_height, s->image_width);
352 return AVERROR_INVALIDDATA;
353 }
354
355 /* we care for keyframes only in Screen Video v2 */
356 s->is_keyframe = (avpkt->flags & AV_PKT_FLAG_KEY) && (s->ver == 2);
357 if (s->is_keyframe) {
358 int err;
359 if ((err = av_reallocp(&s->keyframedata, avpkt->size)) < 0)
360 return err;
361 memcpy(s->keyframedata, avpkt->data, avpkt->size);
362 }
363 if(s->ver == 2 && !s->blocks)
364 s->blocks = av_mallocz((v_blocks + !!v_part) * (h_blocks + !!h_part) *
365 sizeof(s->blocks[0]));
366
367 ff_dlog(avctx, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
368 s->image_width, s->image_height, s->block_width, s->block_height,
369 h_blocks, v_blocks, h_part, v_part);
370
371 if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
372 return ret;
373
374 /* loop over all block columns */
375 for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) {
376
377 int y_pos = j * s->block_height; // vertical position in frame
378 int cur_blk_height = (j < v_blocks) ? s->block_height : v_part;
379
380 /* loop over all block rows */
381 for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
382 int x_pos = i * s->block_width; // horizontal position in frame
383 int cur_blk_width = (i < h_blocks) ? s->block_width : h_part;
384 int has_diff = 0;
385
386 /* get the size of the compressed zlib chunk */
387 int size = get_bits(&gb, 16);
388
389 s->color_depth = 0;
390 s->zlibprime_curr = 0;
391 s->zlibprime_prev = 0;
392 s->diff_start = 0;
393 s->diff_height = cur_blk_height;
394
395 if (8 * size > get_bits_left(&gb)) {
396 av_frame_unref(s->frame);
397 return AVERROR_INVALIDDATA;
398 }
399
400 if (s->ver == 2 && size) {
401 skip_bits(&gb, 3);
402 s->color_depth = get_bits(&gb, 2);
403 has_diff = get_bits1(&gb);
404 s->zlibprime_curr = get_bits1(&gb);
405 s->zlibprime_prev = get_bits1(&gb);
406
407 if (s->color_depth != 0 && s->color_depth != 2) {
408 av_log(avctx, AV_LOG_ERROR,
409 "%dx%d invalid color depth %d\n",
410 i, j, s->color_depth);
411 return AVERROR_INVALIDDATA;
412 }
413
414 if (has_diff) {
415 if (size < 3) {
416 av_log(avctx, AV_LOG_ERROR, "size too small for diff\n");
417 return AVERROR_INVALIDDATA;
418 }
419 if (!s->keyframe) {
420 av_log(avctx, AV_LOG_ERROR,
421 "Inter frame without keyframe\n");
422 return AVERROR_INVALIDDATA;
423 }
424 s->diff_start = get_bits(&gb, 8);
425 s->diff_height = get_bits(&gb, 8);
426 if (s->diff_start + s->diff_height > cur_blk_height) {
427 av_log(avctx, AV_LOG_ERROR,
428 "Block parameters invalid: %d + %d > %d\n",
429 s->diff_start, s->diff_height, cur_blk_height);
430 return AVERROR_INVALIDDATA;
431 }
432 av_log(avctx, AV_LOG_DEBUG,
433 "%dx%d diff start %d height %d\n",
434 i, j, s->diff_start, s->diff_height);
435 size -= 2;
436 }
437
438 if (s->zlibprime_prev)
439 av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_prev\n", i, j);
440
441 if (s->zlibprime_curr) {
442 int col = get_bits(&gb, 8);
443 int row = get_bits(&gb, 8);
444 av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_curr %dx%d\n",
445 i, j, col, row);
446 if (size < 3) {
447 av_log(avctx, AV_LOG_ERROR, "size too small for zlibprime_curr\n");
448 return AVERROR_INVALIDDATA;
449 }
450 size -= 2;
451 avpriv_request_sample(avctx, "zlibprime_curr");
452 return AVERROR_PATCHWELCOME;
453 }
454 if (!s->blocks && (s->zlibprime_curr || s->zlibprime_prev)) {
455 av_log(avctx, AV_LOG_ERROR,
456 "no data available for zlib priming\n");
457 return AVERROR_INVALIDDATA;
458 }
459 size--; // account for flags byte
460 }
461
462 if (has_diff) {
463 int k;
464 int off = (s->image_height - y_pos - 1) * s->frame->linesize[0];
465
466 for (k = 0; k < cur_blk_height; k++) {
467 int x = off - k * s->frame->linesize[0] + x_pos * 3;
468 memcpy(s->frame->data[0] + x, s->keyframe + x,
469 cur_blk_width * 3);
470 }
471 }
472
473 /* skip unchanged blocks, which have size 0 */
474 if (size) {
475 if (flashsv_decode_block(avctx, avpkt, &gb, size,
476 cur_blk_width, cur_blk_height,
477 x_pos, y_pos,
478 i + j * (h_blocks + !!h_part)))
479 av_log(avctx, AV_LOG_ERROR,
480 "error in decompression of block %dx%d\n", i, j);
481 }
482 }
483 }
484 if (s->is_keyframe && s->ver == 2) {
485 if (!s->keyframe) {
486 s->keyframe = av_malloc(s->frame->linesize[0] * avctx->height);
487 if (!s->keyframe) {
488 av_log(avctx, AV_LOG_ERROR, "Cannot allocate image data\n");
489 return AVERROR(ENOMEM);
490 }
491 }
492 memcpy(s->keyframe, s->frame->data[0],
493 s->frame->linesize[0] * avctx->height);
494 }
495
496 if ((ret = av_frame_ref(data, s->frame)) < 0)
497 return ret;
498
499 *got_frame = 1;
500
501 if ((get_bits_count(&gb) / 8) != buf_size)
502 av_log(avctx, AV_LOG_ERROR, "buffer not fully consumed (%d != %d)\n",
503 buf_size, (get_bits_count(&gb) / 8));
504
505 /* report that the buffer was completely consumed */
506 return buf_size;
507 }
508
509 #if CONFIG_FLASHSV_DECODER
510 AVCodec ff_flashsv_decoder = {
511 .name = "flashsv",
512 .long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"),
513 .type = AVMEDIA_TYPE_VIDEO,
514 .id = AV_CODEC_ID_FLASHSV,
515 .priv_data_size = sizeof(FlashSVContext),
516 .init = flashsv_decode_init,
517 .close = flashsv_decode_end,
518 .decode = flashsv_decode_frame,
519 .capabilities = AV_CODEC_CAP_DR1,
520 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
521 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
522 };
523 #endif /* CONFIG_FLASHSV_DECODER */
524
525 #if CONFIG_FLASHSV2_DECODER
526 static const uint32_t ff_flashsv2_default_palette[128] = {
527 0x000000, 0x333333, 0x666666, 0x999999, 0xCCCCCC, 0xFFFFFF,
528 0x330000, 0x660000, 0x990000, 0xCC0000, 0xFF0000, 0x003300,
529 0x006600, 0x009900, 0x00CC00, 0x00FF00, 0x000033, 0x000066,
530 0x000099, 0x0000CC, 0x0000FF, 0x333300, 0x666600, 0x999900,
531 0xCCCC00, 0xFFFF00, 0x003333, 0x006666, 0x009999, 0x00CCCC,
532 0x00FFFF, 0x330033, 0x660066, 0x990099, 0xCC00CC, 0xFF00FF,
533 0xFFFF33, 0xFFFF66, 0xFFFF99, 0xFFFFCC, 0xFF33FF, 0xFF66FF,
534 0xFF99FF, 0xFFCCFF, 0x33FFFF, 0x66FFFF, 0x99FFFF, 0xCCFFFF,
535 0xCCCC33, 0xCCCC66, 0xCCCC99, 0xCCCCFF, 0xCC33CC, 0xCC66CC,
536 0xCC99CC, 0xCCFFCC, 0x33CCCC, 0x66CCCC, 0x99CCCC, 0xFFCCCC,
537 0x999933, 0x999966, 0x9999CC, 0x9999FF, 0x993399, 0x996699,
538 0x99CC99, 0x99FF99, 0x339999, 0x669999, 0xCC9999, 0xFF9999,
539 0x666633, 0x666699, 0x6666CC, 0x6666FF, 0x663366, 0x669966,
540 0x66CC66, 0x66FF66, 0x336666, 0x996666, 0xCC6666, 0xFF6666,
541 0x333366, 0x333399, 0x3333CC, 0x3333FF, 0x336633, 0x339933,
542 0x33CC33, 0x33FF33, 0x663333, 0x993333, 0xCC3333, 0xFF3333,
543 0x003366, 0x336600, 0x660033, 0x006633, 0x330066, 0x663300,
544 0x336699, 0x669933, 0x993366, 0x339966, 0x663399, 0x996633,
545 0x6699CC, 0x99CC66, 0xCC6699, 0x66CC99, 0x9966CC, 0xCC9966,
546 0x99CCFF, 0xCCFF99, 0xFF99CC, 0x99FFCC, 0xCC99FF, 0xFFCC99,
547 0x111111, 0x222222, 0x444444, 0x555555, 0xAAAAAA, 0xBBBBBB,
548 0xDDDDDD, 0xEEEEEE
549 };
550
flashsv2_decode_init(AVCodecContext * avctx)551 static av_cold int flashsv2_decode_init(AVCodecContext *avctx)
552 {
553 FlashSVContext *s = avctx->priv_data;
554 int ret;
555
556 ret = flashsv_decode_init(avctx);
557 if (ret < 0)
558 return ret;
559 s->pal = ff_flashsv2_default_palette;
560 s->ver = 2;
561
562 return 0;
563 }
564
flashsv2_decode_end(AVCodecContext * avctx)565 static av_cold int flashsv2_decode_end(AVCodecContext *avctx)
566 {
567 FlashSVContext *s = avctx->priv_data;
568
569 av_freep(&s->keyframedata);
570 av_freep(&s->blocks);
571 av_freep(&s->keyframe);
572 av_freep(&s->deflate_block);
573 flashsv_decode_end(avctx);
574
575 return 0;
576 }
577
578 AVCodec ff_flashsv2_decoder = {
579 .name = "flashsv2",
580 .long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v2"),
581 .type = AVMEDIA_TYPE_VIDEO,
582 .id = AV_CODEC_ID_FLASHSV2,
583 .priv_data_size = sizeof(FlashSVContext),
584 .init = flashsv2_decode_init,
585 .close = flashsv2_decode_end,
586 .decode = flashsv_decode_frame,
587 .capabilities = AV_CODEC_CAP_DR1,
588 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
589 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
590 };
591 #endif /* CONFIG_FLASHSV2_DECODER */
592