FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/vc1dec.c
Date: 2025-06-23 20:06:14
Exec Total Coverage
Lines: 425 874 48.6%
Functions: 10 16 62.5%
Branches: 212 558 38.0%
Line Branch Exec Source
1 /*
2 * VC-1 and WMV3 decoder
3 * Copyright (c) 2011 Mashiat Sarker Shakkhar
4 * Copyright (c) 2006-2007 Konstantin Shishkov
5 * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 /**
25 * @file
26 * VC-1 and WMV3 decoder
27 */
28
29 #include "config_components.h"
30
31 #include "avcodec.h"
32 #include "blockdsp.h"
33 #include "codec_internal.h"
34 #include "decode.h"
35 #include "get_bits.h"
36 #include "hwaccel_internal.h"
37 #include "hwconfig.h"
38 #include "mpeg_er.h"
39 #include "mpegutils.h"
40 #include "mpegvideo.h"
41 #include "mpegvideodec.h"
42 #include "msmpeg4_vc1_data.h"
43 #include "profiles.h"
44 #include "simple_idct.h"
45 #include "vc1.h"
46 #include "vc1data.h"
47 #include "vc1_vlc_data.h"
48 #include "libavutil/attributes.h"
49 #include "libavutil/avassert.h"
50 #include "libavutil/imgutils.h"
51 #include "libavutil/mem.h"
52 #include "libavutil/thread.h"
53
54
55 static const enum AVPixelFormat vc1_hwaccel_pixfmt_list_420[] = {
56 #if CONFIG_VC1_DXVA2_HWACCEL
57 AV_PIX_FMT_DXVA2_VLD,
58 #endif
59 #if CONFIG_VC1_D3D11VA_HWACCEL
60 AV_PIX_FMT_D3D11VA_VLD,
61 AV_PIX_FMT_D3D11,
62 #endif
63 #if CONFIG_VC1_D3D12VA_HWACCEL
64 AV_PIX_FMT_D3D12,
65 #endif
66 #if CONFIG_VC1_NVDEC_HWACCEL
67 AV_PIX_FMT_CUDA,
68 #endif
69 #if CONFIG_VC1_VAAPI_HWACCEL
70 AV_PIX_FMT_VAAPI,
71 #endif
72 #if CONFIG_VC1_VDPAU_HWACCEL
73 AV_PIX_FMT_VDPAU,
74 #endif
75 AV_PIX_FMT_YUV420P,
76 AV_PIX_FMT_NONE
77 };
78
79 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
80
81 typedef struct SpriteData {
82 /**
83 * Transform coefficients for both sprites in 16.16 fixed point format,
84 * in the order they appear in the bitstream:
85 * x scale
86 * rotation 1 (unused)
87 * x offset
88 * rotation 2 (unused)
89 * y scale
90 * y offset
91 * alpha
92 */
93 int coefs[2][7];
94
95 int effect_type, effect_flag;
96 int effect_pcount1, effect_pcount2; ///< amount of effect parameters stored in effect_params
97 int effect_params1[15], effect_params2[10]; ///< effect parameters in 16.16 fixed point format
98 } SpriteData;
99
100 ✗ static inline int get_fp_val(GetBitContext* gb)
101 {
102 ✗ return (get_bits_long(gb, 30) - (1 << 29)) << 1;
103 }
104
105 ✗ static void vc1_sprite_parse_transform(GetBitContext* gb, int c[7])
106 {
107 ✗ c[1] = c[3] = 0;
108
109 ✗ switch (get_bits(gb, 2)) {
110 ✗ case 0:
111 ✗ c[0] = 1 << 16;
112 ✗ c[2] = get_fp_val(gb);
113 ✗ c[4] = 1 << 16;
114 ✗ break;
115 ✗ case 1:
116 ✗ c[0] = c[4] = get_fp_val(gb);
117 ✗ c[2] = get_fp_val(gb);
118 ✗ break;
119 ✗ case 2:
120 ✗ c[0] = get_fp_val(gb);
121 ✗ c[2] = get_fp_val(gb);
122 ✗ c[4] = get_fp_val(gb);
123 ✗ break;
124 ✗ case 3:
125 ✗ c[0] = get_fp_val(gb);
126 ✗ c[1] = get_fp_val(gb);
127 ✗ c[2] = get_fp_val(gb);
128 ✗ c[3] = get_fp_val(gb);
129 ✗ c[4] = get_fp_val(gb);
130 ✗ break;
131 }
132 ✗ c[5] = get_fp_val(gb);
133 ✗ if (get_bits1(gb))
134 ✗ c[6] = get_fp_val(gb);
135 else
136 ✗ c[6] = 1 << 16;
137 ✗ }
138
139 ✗ static int vc1_parse_sprites(VC1Context *v, GetBitContext* gb, SpriteData* sd)
140 {
141 ✗ AVCodecContext *avctx = v->s.avctx;
142 int sprite, i;
143
144 ✗ for (sprite = 0; sprite <= v->two_sprites; sprite++) {
145 ✗ vc1_sprite_parse_transform(gb, sd->coefs[sprite]);
146 ✗ if (sd->coefs[sprite][1] || sd->coefs[sprite][3])
147 ✗ avpriv_request_sample(avctx, "Non-zero rotation coefficients");
148 ✗ av_log(avctx, AV_LOG_DEBUG, sprite ? "S2:" : "S1:");
149 ✗ for (i = 0; i < 7; i++)
150 ✗ av_log(avctx, AV_LOG_DEBUG, " %d.%.3d",
151 ✗ sd->coefs[sprite][i] / (1<<16),
152 ✗ (abs(sd->coefs[sprite][i]) & 0xFFFF) * 1000 / (1 << 16));
153 ✗ av_log(avctx, AV_LOG_DEBUG, "\n");
154 }
155
156 ✗ skip_bits(gb, 2);
157 ✗ if (sd->effect_type = get_bits_long(gb, 30)) {
158 ✗ switch (sd->effect_pcount1 = get_bits(gb, 4)) {
159 ✗ case 7:
160 ✗ vc1_sprite_parse_transform(gb, sd->effect_params1);
161 ✗ break;
162 ✗ case 14:
163 ✗ vc1_sprite_parse_transform(gb, sd->effect_params1);
164 ✗ vc1_sprite_parse_transform(gb, sd->effect_params1 + 7);
165 ✗ break;
166 ✗ default:
167 ✗ for (i = 0; i < sd->effect_pcount1; i++)
168 ✗ sd->effect_params1[i] = get_fp_val(gb);
169 }
170 ✗ if (sd->effect_type != 13 || sd->effect_params1[0] != sd->coefs[0][6]) {
171 // effect 13 is simple alpha blending and matches the opacity above
172 ✗ av_log(avctx, AV_LOG_DEBUG, "Effect: %d; params: ", sd->effect_type);
173 ✗ for (i = 0; i < sd->effect_pcount1; i++)
174 ✗ av_log(avctx, AV_LOG_DEBUG, " %d.%.2d",
175 ✗ sd->effect_params1[i] / (1 << 16),
176 ✗ (abs(sd->effect_params1[i]) & 0xFFFF) * 1000 / (1 << 16));
177 ✗ av_log(avctx, AV_LOG_DEBUG, "\n");
178 }
179
180 ✗ sd->effect_pcount2 = get_bits(gb, 16);
181 ✗ if (sd->effect_pcount2 > 10) {
182 ✗ av_log(avctx, AV_LOG_ERROR, "Too many effect parameters\n");
183 ✗ return AVERROR_INVALIDDATA;
184 ✗ } else if (sd->effect_pcount2) {
185 ✗ i = -1;
186 ✗ av_log(avctx, AV_LOG_DEBUG, "Effect params 2: ");
187 ✗ while (++i < sd->effect_pcount2) {
188 ✗ sd->effect_params2[i] = get_fp_val(gb);
189 ✗ av_log(avctx, AV_LOG_DEBUG, " %d.%.2d",
190 ✗ sd->effect_params2[i] / (1 << 16),
191 ✗ (abs(sd->effect_params2[i]) & 0xFFFF) * 1000 / (1 << 16));
192 }
193 ✗ av_log(avctx, AV_LOG_DEBUG, "\n");
194 }
195 }
196 ✗ if (sd->effect_flag = get_bits1(gb))
197 ✗ av_log(avctx, AV_LOG_DEBUG, "Effect flag set\n");
198
199 ✗ if (get_bits_count(gb) >= gb->size_in_bits +
200 ✗ (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE ? 64 : 0)) {
201 ✗ av_log(avctx, AV_LOG_ERROR, "Buffer overrun\n");
202 ✗ return AVERROR_INVALIDDATA;
203 }
204 ✗ if (get_bits_count(gb) < gb->size_in_bits - 8)
205 ✗ av_log(avctx, AV_LOG_WARNING, "Buffer not fully read\n");
206
207 ✗ return 0;
208 }
209
210 ✗ static void vc1_draw_sprites(VC1Context *v, SpriteData* sd)
211 {
212 int i, plane, row, sprite;
213 ✗ int sr_cache[2][2] = { { -1, -1 }, { -1, -1 } };
214 const uint8_t *src_h[2][2];
215 int xoff[2], xadv[2], yoff[2], yadv[2], alpha;
216 int ysub[2];
217 ✗ MpegEncContext *s = &v->s;
218
219 ✗ for (i = 0; i <= v->two_sprites; i++) {
220 ✗ xoff[i] = av_clip(sd->coefs[i][2], 0, v->sprite_width-1 << 16);
221 ✗ xadv[i] = sd->coefs[i][0];
222 ✗ if (xadv[i] != 1<<16 || (v->sprite_width << 16) - (v->output_width << 16) - xoff[i])
223 ✗ xadv[i] = av_clip(xadv[i], 0, ((v->sprite_width<<16) - xoff[i] - 1) / v->output_width);
224
225 ✗ yoff[i] = av_clip(sd->coefs[i][5], 0, v->sprite_height-1 << 16);
226 ✗ yadv[i] = av_clip(sd->coefs[i][4], 0, ((v->sprite_height << 16) - yoff[i]) / v->output_height);
227 }
228 ✗ alpha = av_clip_uint16(sd->coefs[1][6]);
229
230 ✗ for (plane = 0; plane < (CONFIG_GRAY && s->avctx->flags & AV_CODEC_FLAG_GRAY ? 1 : 3); plane++) {
231 ✗ int width = v->output_width>>!!plane;
232
233 ✗ for (row = 0; row < v->output_height>>!!plane; row++) {
234 ✗ uint8_t *dst = v->sprite_output_frame->data[plane] +
235 ✗ v->sprite_output_frame->linesize[plane] * row;
236
237 ✗ for (sprite = 0; sprite <= v->two_sprites; sprite++) {
238 ✗ const uint8_t *iplane = s->cur_pic.data[plane];
239 ✗ int iline = s->cur_pic.linesize[plane];
240 ✗ int ycoord = yoff[sprite] + yadv[sprite] * row;
241 ✗ int yline = ycoord >> 16;
242 int next_line;
243 ✗ ysub[sprite] = ycoord & 0xFFFF;
244 ✗ if (sprite) {
245 ✗ iplane = s->last_pic.data[plane];
246 ✗ iline = s->last_pic.linesize[plane];
247 }
248 ✗ next_line = FFMIN(yline + 1, (v->sprite_height >> !!plane) - 1) * iline;
249 ✗ if (!(xoff[sprite] & 0xFFFF) && xadv[sprite] == 1 << 16) {
250 ✗ src_h[sprite][0] = iplane + (xoff[sprite] >> 16) + yline * iline;
251 ✗ if (ysub[sprite])
252 ✗ src_h[sprite][1] = iplane + (xoff[sprite] >> 16) + next_line;
253 } else {
254 ✗ if (sr_cache[sprite][0] != yline) {
255 ✗ if (sr_cache[sprite][1] == yline) {
256 ✗ FFSWAP(uint8_t*, v->sr_rows[sprite][0], v->sr_rows[sprite][1]);
257 ✗ FFSWAP(int, sr_cache[sprite][0], sr_cache[sprite][1]);
258 } else {
259 ✗ v->vc1dsp.sprite_h(v->sr_rows[sprite][0], iplane + yline * iline, xoff[sprite], xadv[sprite], width);
260 ✗ sr_cache[sprite][0] = yline;
261 }
262 }
263 ✗ if (ysub[sprite] && sr_cache[sprite][1] != yline + 1) {
264 ✗ v->vc1dsp.sprite_h(v->sr_rows[sprite][1],
265 iplane + next_line, xoff[sprite],
266 xadv[sprite], width);
267 ✗ sr_cache[sprite][1] = yline + 1;
268 }
269 ✗ src_h[sprite][0] = v->sr_rows[sprite][0];
270 ✗ src_h[sprite][1] = v->sr_rows[sprite][1];
271 }
272 }
273
274 ✗ if (!v->two_sprites) {
275 ✗ if (ysub[0]) {
276 ✗ v->vc1dsp.sprite_v_single(dst, src_h[0][0], src_h[0][1], ysub[0], width);
277 } else {
278 ✗ memcpy(dst, src_h[0][0], width);
279 }
280 } else {
281 ✗ if (ysub[0] && ysub[1]) {
282 ✗ v->vc1dsp.sprite_v_double_twoscale(dst, src_h[0][0], src_h[0][1], ysub[0],
283 src_h[1][0], src_h[1][1], ysub[1], alpha, width);
284 ✗ } else if (ysub[0]) {
285 ✗ v->vc1dsp.sprite_v_double_onescale(dst, src_h[0][0], src_h[0][1], ysub[0],
286 src_h[1][0], alpha, width);
287 ✗ } else if (ysub[1]) {
288 ✗ v->vc1dsp.sprite_v_double_onescale(dst, src_h[1][0], src_h[1][1], ysub[1],
289 src_h[0][0], (1<<16)-1-alpha, width);
290 } else {
291 ✗ v->vc1dsp.sprite_v_double_noscale(dst, src_h[0][0], src_h[1][0], alpha, width);
292 }
293 }
294 }
295
296 ✗ if (!plane) {
297 ✗ for (i = 0; i <= v->two_sprites; i++) {
298 ✗ xoff[i] >>= 1;
299 ✗ yoff[i] >>= 1;
300 }
301 }
302
303 }
304 ✗ }
305
306
307 ✗ static int vc1_decode_sprites(VC1Context *v, GetBitContext* gb)
308 {
309 int ret;
310 ✗ MpegEncContext *s = &v->s;
311 ✗ AVCodecContext *avctx = s->avctx;
312 SpriteData sd;
313
314 ✗ memset(&sd, 0, sizeof(sd));
315
316 ✗ ret = vc1_parse_sprites(v, gb, &sd);
317 ✗ if (ret < 0)
318 ✗ return ret;
319
320 ✗ if (!s->cur_pic.data[0]) {
321 ✗ av_log(avctx, AV_LOG_ERROR, "Got no sprites\n");
322 ✗ return AVERROR_UNKNOWN;
323 }
324
325 ✗ if (v->two_sprites && (!s->last_pic.ptr || !s->last_pic.data[0])) {
326 ✗ av_log(avctx, AV_LOG_WARNING, "Need two sprites, only got one\n");
327 ✗ v->two_sprites = 0;
328 }
329
330 ✗ av_frame_unref(v->sprite_output_frame);
331 ✗ if ((ret = ff_get_buffer(avctx, v->sprite_output_frame, 0)) < 0)
332 ✗ return ret;
333
334 ✗ vc1_draw_sprites(v, &sd);
335
336 ✗ return 0;
337 }
338
339 ✗ static void vc1_sprite_flush(AVCodecContext *avctx)
340 {
341 ✗ VC1Context *v = avctx->priv_data;
342 ✗ MpegEncContext *s = &v->s;
343 ✗ MPVWorkPicture *f = &s->cur_pic;
344 int plane, i;
345
346 /* Windows Media Image codecs have a convergence interval of two keyframes.
347 Since we can't enforce it, clear to black the missing sprite. This is
348 wrong but it looks better than doing nothing. */
349
350 ✗ if (f->data[0])
351 ✗ for (plane = 0; plane < (CONFIG_GRAY && s->avctx->flags & AV_CODEC_FLAG_GRAY ? 1 : 3); plane++)
352 ✗ for (i = 0; i < v->sprite_height>>!!plane; i++)
353 ✗ memset(f->data[plane] + i * f->linesize[plane],
354 ✗ plane ? 128 : 0, f->linesize[plane]);
355 ✗ }
356
357 #endif
358
359 34 static av_cold int vc1_decode_init_alloc_tables(VC1Context *v)
360 {
361 34 MpegEncContext *s = &v->s;
362 int i, ret;
363 34 int mb_height = FFALIGN(s->mb_height, 2);
364
365 /* Allocate mb bitplanes */
366 34 v->mv_type_mb_plane = av_malloc (s->mb_stride * mb_height);
367 34 v->direct_mb_plane = av_malloc (s->mb_stride * mb_height);
368 34 v->forward_mb_plane = av_malloc (s->mb_stride * mb_height);
369 34 v->fieldtx_plane = av_mallocz(s->mb_stride * mb_height);
370 34 v->acpred_plane = av_malloc (s->mb_stride * mb_height);
371 34 v->over_flags_plane = av_malloc (s->mb_stride * mb_height);
372
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 34 if (!v->mv_type_mb_plane || !v->direct_mb_plane || !v->forward_mb_plane ||
373
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 34 !v->fieldtx_plane || !v->acpred_plane || !v->over_flags_plane)
374 ✗ return AVERROR(ENOMEM);
375
376 34 v->n_allocated_blks = s->mb_width + 2;
377 34 v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks);
378 34 v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 3 * s->mb_stride);
379
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 34 if (!v->block || !v->cbp_base)
380 ✗ return AVERROR(ENOMEM);
381 34 v->cbp = v->cbp_base + 2 * s->mb_stride;
382 34 v->ttblk_base = av_mallocz(sizeof(v->ttblk_base[0]) * 3 * s->mb_stride);
383
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 34 if (!v->ttblk_base)
384 ✗ return AVERROR(ENOMEM);
385 34 v->ttblk = v->ttblk_base + 2 * s->mb_stride;
386 34 v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 3 * s->mb_stride);
387
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 34 if (!v->is_intra_base)
388 ✗ return AVERROR(ENOMEM);
389 34 v->is_intra = v->is_intra_base + 2 * s->mb_stride;
390 34 v->luma_mv_base = av_mallocz(sizeof(v->luma_mv_base[0]) * 3 * s->mb_stride);
391
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 34 if (!v->luma_mv_base)
392 ✗ return AVERROR(ENOMEM);
393 34 v->luma_mv = v->luma_mv_base + 2 * s->mb_stride;
394
395 /* allocate block type info in that way so it could be used with s->block_index[] */
396 34 v->mb_type_base = av_mallocz(s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
397
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 34 if (!v->mb_type_base)
398 ✗ return AVERROR(ENOMEM);
399 34 v->mb_type = v->mb_type_base + s->b8_stride + 1;
400
401 /* allocate memory to store block level MV info */
402 34 v->blk_mv_type_base = av_mallocz( s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
403
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 34 if (!v->blk_mv_type_base)
404 ✗ return AVERROR(ENOMEM);
405 34 v->blk_mv_type = v->blk_mv_type_base + s->b8_stride + 1;
406 34 v->mv_f_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2));
407
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 34 if (!v->mv_f_base)
408 ✗ return AVERROR(ENOMEM);
409 34 v->mv_f[0] = v->mv_f_base + s->b8_stride + 1;
410 34 v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
411 34 v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2));
412
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 34 if (!v->mv_f_next_base)
413 ✗ return AVERROR(ENOMEM);
414 34 v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1;
415 34 v->mv_f_next[1] = v->mv_f_next[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
416
417
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 34 if (s->avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || s->avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
418 ✗ for (i = 0; i < 4; i++)
419 ✗ if (!(v->sr_rows[i >> 1][i & 1] = av_malloc(v->output_width)))
420 ✗ return AVERROR(ENOMEM);
421 }
422
423 34 ret = ff_intrax8_common_init(s->avctx, &v->x8, s->block,
424 s->mb_width, s->mb_height);
425
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 34 if (ret < 0)
426 ✗ return ret;
427
428 34 return 0;
429 }
430
431 34 static enum AVPixelFormat vc1_get_format(AVCodecContext *avctx)
432 {
433
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 34 if (avctx->codec_id == AV_CODEC_ID_MSS2)
434 12 return AV_PIX_FMT_YUV420P;
435
436 if (CONFIG_GRAY && (avctx->flags & AV_CODEC_FLAG_GRAY)) {
437 if (avctx->color_range == AVCOL_RANGE_UNSPECIFIED)
438 avctx->color_range = AVCOL_RANGE_MPEG;
439 return AV_PIX_FMT_GRAY8;
440 }
441
442
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 22 if (avctx->codec_id == AV_CODEC_ID_VC1IMAGE ||
443
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 22 avctx->codec_id == AV_CODEC_ID_WMV3IMAGE)
444 ✗ return AV_PIX_FMT_YUV420P;
445
446 22 return ff_get_format(avctx, vc1_hwaccel_pixfmt_list_420);
447 }
448
449 static void vc1_decode_reset(AVCodecContext *avctx);
450
451 34 av_cold int ff_vc1_decode_init(AVCodecContext *avctx)
452 {
453 34 VC1Context *const v = avctx->priv_data;
454 34 MpegEncContext *const s = &v->s;
455 int ret;
456
457 34 ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
458
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 34 if (ret < 0)
459 ✗ return ret;
460
461 34 ret = ff_mpv_decode_init(s, avctx);
462
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 34 if (ret < 0)
463 ✗ return ret;
464
465 34 avctx->pix_fmt = vc1_get_format(avctx);
466
467 34 ret = ff_mpv_common_init(s);
468
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 34 if (ret < 0)
469 ✗ return ret;
470
471 34 ff_permute_scantable(s->intra_scantable.permutated, ff_wmv1_scantable[1],
472 34 s->idsp.idct_permutation);
473
474 34 ret = vc1_decode_init_alloc_tables(v);
475
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 34 if (ret < 0) {
476 ✗ vc1_decode_reset(avctx);
477 ✗ return ret;
478 }
479 34 return 0;
480 }
481
482 34 av_cold void ff_vc1_init_transposed_scantables(VC1Context *v)
483 {
484 int i;
485
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 2210 for (i = 0; i < 64; i++) {
486 #define transpose(x) (((x) >> 3) | (((x) & 7) << 3))
487 2176 v->zz_8x8[0][i] = transpose(ff_wmv1_scantable[0][i]);
488 2176 v->zz_8x8[1][i] = transpose(ff_wmv1_scantable[1][i]);
489 2176 v->zz_8x8[2][i] = transpose(ff_wmv1_scantable[2][i]);
490 2176 v->zz_8x8[3][i] = transpose(ff_wmv1_scantable[3][i]);
491 2176 v->zzi_8x8[i] = transpose(ff_vc1_adv_interlaced_8x8_zz[i]);
492 }
493 34 v->left_blk_sh = 0;
494 34 v->top_blk_sh = 3;
495 34 }
496
497 18 static av_cold void vc1_init_static(void)
498 {
499 static VLCElem vlc_table[32372];
500 18 VLCInitState state = VLC_INIT_STATE(vlc_table);
501
502 18 VLC_INIT_STATIC_TABLE(ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
503 vc1_norm2_bits, 1, 1,
504 vc1_norm2_codes, 1, 1, 0);
505 18 VLC_INIT_STATIC_TABLE(ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
506 vc1_norm6_bits, 1, 1,
507 vc1_norm6_codes, 2, 2, 0);
508 18 VLC_INIT_STATIC_TABLE(ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
509 vc1_imode_bits, 1, 1,
510 vc1_imode_codes, 1, 1, 0);
511
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 72 for (int i = 0; i < 3; i++) {
512 54 ff_vc1_ttmb_vlc[i] =
513 54 ff_vlc_init_tables(&state, VC1_TTMB_VLC_BITS, 16,
514 54 vc1_ttmb_bits[i], 1, 1,
515 54 vc1_ttmb_codes[i], 2, 2, 0);
516 54 ff_vc1_ttblk_vlc[i] =
517 54 ff_vlc_init_tables(&state, VC1_TTBLK_VLC_BITS, 8,
518 54 vc1_ttblk_bits[i], 1, 1,
519 54 vc1_ttblk_codes[i], 1, 1, 0);
520 54 ff_vc1_subblkpat_vlc[i] =
521 54 ff_vlc_init_tables(&state, VC1_SUBBLKPAT_VLC_BITS, 15,
522 54 vc1_subblkpat_bits[i], 1, 1,
523 54 vc1_subblkpat_codes[i], 1, 1, 0);
524 }
525
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 90 for (int i = 0; i < 4; i++) {
526 72 ff_vc1_4mv_block_pattern_vlc[i] =
527 72 ff_vlc_init_tables(&state, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
528 72 vc1_4mv_block_pattern_bits[i], 1, 1,
529 72 vc1_4mv_block_pattern_codes[i], 1, 1, 0);
530 72 ff_vc1_cbpcy_p_vlc[i] =
531 72 ff_vlc_init_tables(&state, VC1_CBPCY_P_VLC_BITS, 64,
532 72 vc1_cbpcy_p_bits[i], 1, 1,
533 72 vc1_cbpcy_p_codes[i], 2, 2, 0);
534 72 ff_vc1_mv_diff_vlc[i] =
535 72 ff_vlc_init_tables(&state, VC1_MV_DIFF_VLC_BITS, 73,
536 72 vc1_mv_diff_bits[i], 1, 1,
537 72 vc1_mv_diff_codes[i], 2, 2, 0);
538 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
539 72 ff_vc1_intfr_4mv_mbmode_vlc[i] =
540 72 ff_vlc_init_tables(&state, VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
541 72 vc1_intfr_4mv_mbmode_bits[i], 1, 1,
542 72 vc1_intfr_4mv_mbmode_codes[i], 2, 2, 0);
543 /* initialize NON-4MV MBMODE VLC tables for the same */
544 72 ff_vc1_intfr_non4mv_mbmode_vlc[i] =
545 72 ff_vlc_init_tables(&state, VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
546 72 vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
547 72 vc1_intfr_non4mv_mbmode_codes[i], 1, 1, 0);
548 /* initialize interlaced MVDATA tables (1-Ref) */
549 72 ff_vc1_1ref_mvdata_vlc[i] =
550 72 ff_vlc_init_tables(&state, VC1_1REF_MVDATA_VLC_BITS, 72,
551 72 vc1_1ref_mvdata_bits[i], 1, 1,
552 72 vc1_1ref_mvdata_codes[i], 4, 4, 0);
553 /* Initialize 2MV Block pattern VLC tables */
554 72 ff_vc1_2mv_block_pattern_vlc[i] =
555 72 ff_vlc_init_tables(&state, VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
556 72 vc1_2mv_block_pattern_bits[i], 1, 1,
557 72 vc1_2mv_block_pattern_codes[i], 1, 1, 0);
558 }
559
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 162 for (int i = 0; i < 8; i++) {
560 144 ff_vc1_ac_coeff_table[i] =
561 144 ff_vlc_init_tables(&state, AC_VLC_BITS, ff_vc1_ac_sizes[i],
562 144 &vc1_ac_tables[i][0][1], 8, 4,
563 144 &vc1_ac_tables[i][0][0], 8, 4, 0);
564 /* initialize interlaced MVDATA tables (2-Ref) */
565 144 ff_vc1_2ref_mvdata_vlc[i] =
566 144 ff_vlc_init_tables(&state, VC1_2REF_MVDATA_VLC_BITS, 126,
567 144 vc1_2ref_mvdata_bits[i], 1, 1,
568 144 vc1_2ref_mvdata_codes[i], 4, 4, 0);
569 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
570 144 ff_vc1_icbpcy_vlc[i] =
571 144 ff_vlc_init_tables(&state, VC1_ICBPCY_VLC_BITS, 63,
572 144 vc1_icbpcy_p_bits[i], 1, 1,
573 144 vc1_icbpcy_p_codes[i], 2, 2, 0);
574 /* Initialize interlaced field picture MBMODE VLC tables */
575 144 ff_vc1_if_mmv_mbmode_vlc[i] =
576 144 ff_vlc_init_tables(&state, VC1_IF_MMV_MBMODE_VLC_BITS, 8,
577 144 vc1_if_mmv_mbmode_bits[i], 1, 1,
578 144 vc1_if_mmv_mbmode_codes[i], 1, 1, 0);
579 144 ff_vc1_if_1mv_mbmode_vlc[i] =
580 144 ff_vlc_init_tables(&state, VC1_IF_1MV_MBMODE_VLC_BITS, 6,
581 144 vc1_if_1mv_mbmode_bits[i], 1, 1,
582 144 vc1_if_1mv_mbmode_codes[i], 1, 1, 0);
583 }
584 18 ff_msmp4_vc1_vlcs_init_once();
585 18 }
586
587 /**
588 * Init VC-1 specific tables and VC1Context members
589 * @param v The VC1Context to initialize
590 * @return Status
591 */
592 34 av_cold void ff_vc1_init_common(VC1Context *v)
593 {
594 static AVOnce init_static_once = AV_ONCE_INIT;
595 34 MpegEncContext *const s = &v->s;
596
597 /* defaults */
598 34 v->pq = -1;
599 34 v->mvrange = 0; /* 7.1.1.18, p80 */
600
601 34 s->avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
602 34 s->out_format = FMT_H263;
603
604 34 s->h263_pred = 1;
605 34 s->msmpeg4_version = MSMP4_VC1;
606
607 34 ff_vc1dsp_init(&v->vc1dsp);
608
609 /* For error resilience */
610 34 ff_qpeldsp_init(&s->qdsp);
611
612 /* VLC tables */
613 34 ff_thread_once(&init_static_once, vc1_init_static);
614 34 }
615
616 /** Initialize a VC1/WMV3 decoder
617 * @todo TODO: Handle VC-1 IDUs (Transport level?)
618 * @todo TODO: Decipher remaining bits in extra_data
619 */
620 28 static av_cold int vc1_decode_init(AVCodecContext *avctx)
621 {
622 28 VC1Context *v = avctx->priv_data;
623 28 MpegEncContext *s = &v->s;
624 GetBitContext gb;
625 int ret;
626
627 /* save the container output size for WMImage */
628 28 v->output_width = avctx->width;
629 28 v->output_height = avctx->height;
630
631
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 28 if (!avctx->extradata_size || !avctx->extradata)
632 6 return AVERROR_INVALIDDATA;
633 22 v->s.avctx = avctx;
634
635 22 ff_vc1_init_common(v);
636
637
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 29 if (avctx->codec_id == AV_CODEC_ID_WMV3 || avctx->codec_id == AV_CODEC_ID_WMV3IMAGE) {
638 7 int count = 0;
639
640 // looks like WMV3 has a sequence header stored in the extradata
641 // advanced sequence header may be before the first frame
642 // the last byte of the extradata is a version number, 1 for the
643 // samples we can decode
644
645 7 ret = init_get_bits8(&gb, avctx->extradata, avctx->extradata_size);
646
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 7 if (ret < 0)
647 ✗ return ret;
648
649
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 7 if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0)
650 ✗ return ret;
651
652
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 7 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE && !v->res_sprite) {
653 ✗ avpriv_request_sample(avctx, "Non sprite WMV3IMAGE");
654 ✗ return AVERROR_PATCHWELCOME;
655 }
656
657 7 count = avctx->extradata_size*8 - get_bits_count(&gb);
658
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 7 if (count > 0) {
659 ✗ av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
660 count, get_bits_long(&gb, FFMIN(count, 32)));
661
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 7 } else if (count < 0) {
662 ✗ av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
663 }
664 } else { // VC1/WVC1/WVP2
665 15 const uint8_t *start = avctx->extradata;
666 15 const uint8_t *end = avctx->extradata + avctx->extradata_size;
667 const uint8_t *next;
668 int size, buf2_size;
669 15 uint8_t *buf2 = NULL;
670 15 int seq_initialized = 0, ep_initialized = 0;
671
672
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 15 if (avctx->extradata_size < 16) {
673 ✗ av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
674 ✗ return AVERROR_INVALIDDATA;
675 }
676
677 15 buf2 = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
678
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 15 if (!buf2)
679 ✗ return AVERROR(ENOMEM);
680
681 15 start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv
682 15 next = start;
683
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 55 for (; next < end; start = next) {
684 40 next = find_next_marker(start + 4, end);
685 40 size = next - start - 4;
686
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 40 if (size <= 0)
687 ✗ continue;
688 40 buf2_size = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
689 40 init_get_bits(&gb, buf2, buf2_size * 8);
690
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 40 switch (AV_RB32(start)) {
691 15 case VC1_CODE_SEQHDR:
692
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 15 if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) {
693 ✗ av_free(buf2);
694 ✗ return ret;
695 }
696 15 seq_initialized = 1;
697 15 break;
698 25 case VC1_CODE_ENTRYPOINT:
699
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 25 if ((ret = ff_vc1_decode_entry_point(avctx, v, &gb)) < 0) {
700 ✗ av_free(buf2);
701 ✗ return ret;
702 }
703 25 ep_initialized = 1;
704 25 break;
705 }
706 }
707 15 av_free(buf2);
708
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 15 if (!seq_initialized || !ep_initialized) {
709 ✗ av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n");
710 ✗ return AVERROR_INVALIDDATA;
711 }
712 15 v->res_sprite = (avctx->codec_id == AV_CODEC_ID_VC1IMAGE);
713 }
714
715 22 avctx->profile = v->profile;
716
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 22 if (v->profile == PROFILE_ADVANCED)
717 15 avctx->level = v->level;
718
719 22 ff_blockdsp_init(&s->bdsp);
720 22 ff_h264chroma_init(&v->h264chroma, 8);
721
722 22 avctx->has_b_frames = !!avctx->max_b_frames;
723
724
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 22 if (v->color_prim == 1 || v->color_prim == 5 || v->color_prim == 6)
725 ✗ avctx->color_primaries = v->color_prim;
726
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 22 if (v->transfer_char == 1 || v->transfer_char == 7)
727 ✗ avctx->color_trc = v->transfer_char;
728
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 22 if (v->matrix_coef == 1 || v->matrix_coef == 6 || v->matrix_coef == 7)
729 ✗ avctx->colorspace = v->matrix_coef;
730
731 22 s->mb_width = (avctx->coded_width + 15) >> 4;
732 22 s->mb_height = (avctx->coded_height + 15) >> 4;
733
734
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 22 if (v->profile == PROFILE_ADVANCED || v->res_fasttx) {
735 22 ff_vc1_init_transposed_scantables(v);
736 } else {
737 ✗ memcpy(v->zz_8x8, ff_wmv1_scantable, 4*64);
738 ✗ v->left_blk_sh = 3;
739 ✗ v->top_blk_sh = 0;
740 ✗ v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_int16_8bit;
741 ✗ v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
742 ✗ v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
743 ✗ v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
744 ✗ v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_int16_8bit;
745 ✗ v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
746 ✗ v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
747 ✗ v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
748 }
749
750
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 22 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
751 ✗ v->sprite_width = avctx->coded_width;
752 ✗ v->sprite_height = avctx->coded_height;
753
754 ✗ avctx->coded_width = avctx->width = v->output_width;
755 ✗ avctx->coded_height = avctx->height = v->output_height;
756
757 // prevent 16.16 overflows
758 ✗ if (v->sprite_width > 1 << 14 ||
759 ✗ v->sprite_height > 1 << 14 ||
760 ✗ v->output_width > 1 << 14 ||
761 ✗ v->output_height > 1 << 14) {
762 ✗ return AVERROR_INVALIDDATA;
763 }
764
765 ✗ if ((v->sprite_width&1) || (v->sprite_height&1)) {
766 ✗ avpriv_request_sample(avctx, "odd sprites support");
767 ✗ return AVERROR_PATCHWELCOME;
768 }
769 }
770 22 return 0;
771 }
772
773 34 static av_cold void vc1_decode_reset(AVCodecContext *avctx)
774 {
775 34 VC1Context *v = avctx->priv_data;
776 int i;
777
778 34 av_frame_free(&v->sprite_output_frame);
779
780
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 170 for (i = 0; i < 4; i++)
781 136 av_freep(&v->sr_rows[i >> 1][i & 1]);
782 34 ff_mpv_common_end(&v->s);
783 34 memset(v->s.block_index, 0, sizeof(v->s.block_index));
784 34 av_freep(&v->mv_type_mb_plane);
785 34 av_freep(&v->direct_mb_plane);
786 34 av_freep(&v->forward_mb_plane);
787 34 av_freep(&v->fieldtx_plane);
788 34 av_freep(&v->acpred_plane);
789 34 av_freep(&v->over_flags_plane);
790 34 av_freep(&v->mb_type_base);
791 34 av_freep(&v->blk_mv_type_base);
792 34 av_freep(&v->mv_f_base);
793 34 av_freep(&v->mv_f_next_base);
794 34 av_freep(&v->block);
795 34 av_freep(&v->cbp_base);
796 34 av_freep(&v->ttblk_base);
797 34 av_freep(&v->is_intra_base); // FIXME use v->mb_type[]
798 34 av_freep(&v->luma_mv_base);
799 34 ff_intrax8_common_end(&v->x8);
800 34 }
801
802 /**
803 * Close a MSS2/VC1/WMV3 decoder
804 */
805 34 av_cold int ff_vc1_decode_end(AVCodecContext *avctx)
806 {
807 34 vc1_decode_reset(avctx);
808 34 return ff_mpv_decode_close(avctx);
809 }
810
811 /** Decode a VC1/WMV3 frame
812 * @todo TODO: Handle VC-1 IDUs (Transport level?)
813 */
814 506 static int vc1_decode_frame(AVCodecContext *avctx, AVFrame *pict,
815 int *got_frame, AVPacket *avpkt)
816 {
817 506 const uint8_t *buf = avpkt->data;
818 506 int buf_size = avpkt->size, n_slices = 0, i, ret;
819 506 VC1Context *v = avctx->priv_data;
820 506 MpegEncContext *s = &v->s;
821 506 uint8_t *buf2 = NULL;
822 506 const uint8_t *buf_start = buf, *buf_start_second_field = NULL;
823 506 int mb_height, n_slices1=-1;
824 struct {
825 uint8_t *buf;
826 GetBitContext gb;
827 int mby_start;
828 const uint8_t *rawbuf;
829 int raw_size;
830 506 } *slices = NULL, *tmp;
831 506 unsigned slices_allocated = 0;
832
833 506 v->second_field = 0;
834
835
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 506 if(s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY)
836 ✗ s->low_delay = 1;
837
838 /* no supplementary picture */
839
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 506 if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) {
840 /* special case for last picture */
841
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 17 if (s->low_delay == 0 && s->next_pic.ptr) {
842
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 8 if ((ret = av_frame_ref(pict, s->next_pic.ptr->f)) < 0)
843 ✗ return ret;
844 8 ff_mpv_unref_picture(&s->next_pic);
845
846 8 *got_frame = 1;
847 }
848
849 17 return buf_size;
850 }
851
852 //for advanced profile we may need to parse and unescape data
853
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 795 if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
854 306 int buf_size2 = 0;
855 306 size_t next_allocated = 0;
856 306 buf2 = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
857
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 306 if (!buf2)
858 ✗ return AVERROR(ENOMEM);
859
860
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 306 if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */
861 const uint8_t *start, *end, *next;
862 int size;
863
864 306 next = buf;
865
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 1294 for (start = buf, end = buf + buf_size; next < end; start = next) {
866 988 next = find_next_marker(start + 4, end);
867 988 size = next - start - 4;
868
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 988 if (size <= 0) continue;
869
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 988 switch (AV_RB32(start)) {
870 306 case VC1_CODE_FRAME:
871 306 buf_start = start;
872 306 buf_size2 = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
873 306 break;
874 37 case VC1_CODE_FIELD: {
875 int buf_size3;
876 37 buf_start_second_field = start;
877 37 av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
878
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 37 tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
879
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 37 if (!tmp) {
880 ✗ ret = AVERROR(ENOMEM);
881 ✗ goto err;
882 }
883 37 slices = tmp;
884 37 slices[n_slices].buf = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
885
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 37 if (!slices[n_slices].buf) {
886 ✗ ret = AVERROR(ENOMEM);
887 ✗ goto err;
888 }
889 37 buf_size3 = v->vc1dsp.vc1_unescape_buffer(start + 4, size,
890 37 slices[n_slices].buf);
891 37 init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
892 buf_size3 << 3);
893 37 slices[n_slices].mby_start = avctx->coded_height + 31 >> 5;
894 37 slices[n_slices].rawbuf = start;
895 37 slices[n_slices].raw_size = size + 4;
896 37 n_slices1 = n_slices - 1; // index of the last slice of the first field
897 37 n_slices++;
898 37 break;
899 }
900 26 case VC1_CODE_ENTRYPOINT: /* it should be before frame data */
901 26 buf_size2 = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
902 26 init_get_bits(&s->gb, buf2, buf_size2 * 8);
903 26 ff_vc1_decode_entry_point(avctx, v, &s->gb);
904 26 break;
905 603 case VC1_CODE_SLICE: {
906 int buf_size3;
907 603 av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
908
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 603 tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
909
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 603 if (!tmp) {
910 ✗ ret = AVERROR(ENOMEM);
911 ✗ goto err;
912 }
913 603 slices = tmp;
914 603 slices[n_slices].buf = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
915
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 603 if (!slices[n_slices].buf) {
916 ✗ ret = AVERROR(ENOMEM);
917 ✗ goto err;
918 }
919 603 buf_size3 = v->vc1dsp.vc1_unescape_buffer(start + 4, size,
920 603 slices[n_slices].buf);
921 603 init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
922 buf_size3 << 3);
923 603 slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9);
924 603 slices[n_slices].rawbuf = start;
925 603 slices[n_slices].raw_size = size + 4;
926 603 n_slices++;
927 603 break;
928 }
929 }
930 }
931 ✗ } else if (v->interlace && ((buf[0] & 0xC0) == 0xC0)) { /* WVC1 interlaced stores both fields divided by marker */
932 const uint8_t *divider;
933 int buf_size3;
934
935 ✗ divider = find_next_marker(buf, buf + buf_size);
936 ✗ if ((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD) {
937 ✗ av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
938 ✗ ret = AVERROR_INVALIDDATA;
939 ✗ goto err;
940 } else { // found field marker, unescape second field
941 ✗ buf_start_second_field = divider;
942 ✗ av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
943 ✗ tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
944 ✗ if (!tmp) {
945 ✗ ret = AVERROR(ENOMEM);
946 ✗ goto err;
947 }
948 ✗ slices = tmp;
949 ✗ slices[n_slices].buf = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
950 ✗ if (!slices[n_slices].buf) {
951 ✗ ret = AVERROR(ENOMEM);
952 ✗ goto err;
953 }
954 ✗ buf_size3 = v->vc1dsp.vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf);
955 ✗ init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
956 buf_size3 << 3);
957 ✗ slices[n_slices].mby_start = s->mb_height + 1 >> 1;
958 ✗ slices[n_slices].rawbuf = divider;
959 ✗ slices[n_slices].raw_size = buf + buf_size - divider;
960 ✗ n_slices1 = n_slices - 1;
961 ✗ n_slices++;
962 }
963 ✗ buf_size2 = v->vc1dsp.vc1_unescape_buffer(buf, divider - buf, buf2);
964 } else {
965 ✗ buf_size2 = v->vc1dsp.vc1_unescape_buffer(buf, buf_size, buf2);
966 }
967 306 init_get_bits(&s->gb, buf2, buf_size2*8);
968 } else{
969 183 ret = init_get_bits8(&s->gb, buf, buf_size);
970
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 183 if (ret < 0)
971 ✗ return ret;
972 }
973
974
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 489 if (v->res_sprite) {
975 ✗ v->new_sprite = !get_bits1(&s->gb);
976 ✗ v->two_sprites = get_bits1(&s->gb);
977 /* res_sprite means a Windows Media Image stream, AV_CODEC_ID_*IMAGE means
978 we're using the sprite compositor. These are intentionally kept separate
979 so you can get the raw sprites by using the wmv3 decoder for WMVP or
980 the vc1 one for WVP2 */
981 ✗ if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
982 ✗ if (v->new_sprite) {
983 // switch AVCodecContext parameters to those of the sprites
984 ✗ avctx->width = avctx->coded_width = v->sprite_width;
985 ✗ avctx->height = avctx->coded_height = v->sprite_height;
986 } else {
987 ✗ goto image;
988 }
989 }
990 }
991
992
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 489 if (s->context_initialized &&
993
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 467 (s->width != avctx->coded_width ||
994
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 467 s->height != avctx->coded_height)) {
995 ✗ vc1_decode_reset(avctx);
996 }
997
998
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 489 if (!s->context_initialized) {
999 22 ret = ff_vc1_decode_init(avctx);
1000
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 22 if (ret < 0)
1001 ✗ goto err;
1002
1003
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 22 s->low_delay = !avctx->has_b_frames || v->res_sprite;
1004
1005
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 22 if (v->profile == PROFILE_ADVANCED) {
1006
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 15 if(avctx->coded_width<=1 || avctx->coded_height<=1) {
1007 ✗ ret = AVERROR_INVALIDDATA;
1008 ✗ goto err;
1009 }
1010 15 s->h_edge_pos = avctx->coded_width;
1011 15 s->v_edge_pos = avctx->coded_height;
1012 }
1013 }
1014
1015 // do parse frame header
1016 489 v->pic_header_flag = 0;
1017 489 v->first_pic_header_flag = 1;
1018
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 489 if (v->profile < PROFILE_ADVANCED) {
1019
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 183 if ((ret = ff_vc1_parse_frame_header(v, &s->gb)) < 0) {
1020 ✗ goto err;
1021 }
1022 } else {
1023
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 306 if ((ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1024 ✗ goto err;
1025 }
1026 }
1027 489 v->first_pic_header_flag = 0;
1028
1029
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 489 if (avctx->debug & FF_DEBUG_PICT_INFO)
1030 ✗ av_log(v->s.avctx, AV_LOG_DEBUG, "pict_type: %c\n", av_get_picture_type_char(s->pict_type));
1031
1032
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 489 if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE)
1033 ✗ && s->pict_type != AV_PICTURE_TYPE_I) {
1034 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected I-frame\n");
1035 ✗ ret = AVERROR_INVALIDDATA;
1036 ✗ goto err;
1037 }
1038
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 489 if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE)
1039 ✗ && v->field_mode) {
1040 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected Frames not Fields\n");
1041 ✗ ret = AVERROR_INVALIDDATA;
1042 ✗ goto err;
1043 }
1044
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 489 if ((s->mb_height >> v->field_mode) == 0) {
1045 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "image too short\n");
1046 ✗ ret = AVERROR_INVALIDDATA;
1047 ✗ goto err;
1048 }
1049
1050 /* skip B-frames if we don't have reference frames */
1051
3/4
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 489 if (!s->last_pic.ptr && s->pict_type == AV_PICTURE_TYPE_B) {
1052 ✗ av_log(v->s.avctx, AV_LOG_DEBUG, "Skipping B frame without reference frames\n");
1053 ✗ goto end;
1054 }
1055
1/4
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 489 if ((avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) ||
1056
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 489 (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) ||
1057
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 489 avctx->skip_frame >= AVDISCARD_ALL) {
1058 ✗ goto end;
1059 }
1060
1061
1/2
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✓ Branch 2 taken 489 times.
 489 if ((ret = ff_mpv_frame_start(s, avctx)) < 0) {
1062 ✗ goto err;
1063 }
1064
1065 489 v->s.cur_pic.ptr->field_picture = v->field_mode;
1066
2/2
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 489 v->s.cur_pic.ptr->f->flags |= AV_FRAME_FLAG_INTERLACED * (v->fcm != PROGRESSIVE);
1067
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 489 v->s.cur_pic.ptr->f->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST * !!v->tff;
1068
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 489 v->last_interlaced = v->s.last_pic.ptr ? v->s.last_pic.ptr->f->flags & AV_FRAME_FLAG_INTERLACED : 0;
1069
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✗ Branch 1 not taken.
 489 v->next_interlaced = v->s.next_pic.ptr ? v->s.next_pic.ptr->f->flags & AV_FRAME_FLAG_INTERLACED : 0;
1070
1071 // process pulldown flags
1072 489 s->cur_pic.ptr->f->repeat_pict = 0;
1073 // Pulldown flags are only valid when 'broadcast' has been set.
1074
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 489 if (v->rff) {
1075 // repeat field
1076 ✗ s->cur_pic.ptr->f->repeat_pict = 1;
1077
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 489 } else if (v->rptfrm) {
1078 // repeat frames
1079 ✗ s->cur_pic.ptr->f->repeat_pict = v->rptfrm * 2;
1080 }
1081
1082
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 489 if (avctx->hwaccel) {
1083 ✗ const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel);
1084 ✗ s->mb_y = 0;
1085 ✗ if (v->field_mode && buf_start_second_field) {
1086 // decode first field
1087 ✗ s->picture_structure = PICT_BOTTOM_FIELD - v->tff;
1088 ✗ ret = hwaccel->start_frame(avctx, avpkt->buf, buf_start,
1089 ✗ buf_start_second_field - buf_start);
1090 ✗ if (ret < 0)
1091 ✗ goto err;
1092
1093 ✗ if (n_slices1 == -1) {
1094 // no slices, decode the field as-is
1095 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1096 ✗ buf_start_second_field - buf_start);
1097 ✗ if (ret < 0)
1098 ✗ goto err;
1099 } else {
1100 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1101 ✗ slices[0].rawbuf - buf_start);
1102 ✗ if (ret < 0)
1103 ✗ goto err;
1104
1105 ✗ for (i = 0 ; i < n_slices1 + 1; i++) {
1106 ✗ s->gb = slices[i].gb;
1107 ✗ s->mb_y = slices[i].mby_start;
1108
1109 ✗ v->pic_header_flag = get_bits1(&s->gb);
1110 ✗ if (v->pic_header_flag) {
1111 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1112 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1113 ✗ ret = AVERROR_INVALIDDATA;
1114 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1115 ✗ goto err;
1116 ✗ continue;
1117 }
1118 }
1119
1120 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1121 ✗ slices[i].raw_size);
1122 ✗ if (ret < 0)
1123 ✗ goto err;
1124 }
1125 }
1126
1127 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1128 ✗ goto err;
1129
1130 // decode second field
1131 ✗ s->gb = slices[n_slices1 + 1].gb;
1132 ✗ s->mb_y = slices[n_slices1 + 1].mby_start;
1133 ✗ s->picture_structure = PICT_TOP_FIELD + v->tff;
1134 ✗ v->second_field = 1;
1135 ✗ v->pic_header_flag = 0;
1136 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1137 ✗ av_log(avctx, AV_LOG_ERROR, "parsing header for second field failed");
1138 ✗ ret = AVERROR_INVALIDDATA;
1139 ✗ goto err;
1140 }
1141 ✗ v->s.cur_pic.ptr->f->pict_type = v->s.pict_type;
1142
1143 ✗ ret = hwaccel->start_frame(avctx, avpkt->buf, buf_start_second_field,
1144 ✗ (buf + buf_size) - buf_start_second_field);
1145 ✗ if (ret < 0)
1146 ✗ goto err;
1147
1148 ✗ if (n_slices - n_slices1 == 2) {
1149 // no slices, decode the field as-is
1150 ✗ ret = hwaccel->decode_slice(avctx, buf_start_second_field,
1151 ✗ (buf + buf_size) - buf_start_second_field);
1152 ✗ if (ret < 0)
1153 ✗ goto err;
1154 } else {
1155 ✗ ret = hwaccel->decode_slice(avctx, buf_start_second_field,
1156 ✗ slices[n_slices1 + 2].rawbuf - buf_start_second_field);
1157 ✗ if (ret < 0)
1158 ✗ goto err;
1159
1160 ✗ for (i = n_slices1 + 2; i < n_slices; i++) {
1161 ✗ s->gb = slices[i].gb;
1162 ✗ s->mb_y = slices[i].mby_start;
1163
1164 ✗ v->pic_header_flag = get_bits1(&s->gb);
1165 ✗ if (v->pic_header_flag) {
1166 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1167 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1168 ✗ ret = AVERROR_INVALIDDATA;
1169 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1170 ✗ goto err;
1171 ✗ continue;
1172 }
1173 }
1174
1175 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1176 ✗ slices[i].raw_size);
1177 ✗ if (ret < 0)
1178 ✗ goto err;
1179 }
1180 }
1181
1182 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1183 ✗ goto err;
1184 } else {
1185 ✗ s->picture_structure = PICT_FRAME;
1186 ✗ ret = hwaccel->start_frame(avctx, avpkt->buf, buf_start,
1187 ✗ (buf + buf_size) - buf_start);
1188 ✗ if (ret < 0)
1189 ✗ goto err;
1190
1191 ✗ if (n_slices == 0) {
1192 // no slices, decode the frame as-is
1193 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1194 ✗ (buf + buf_size) - buf_start);
1195 ✗ if (ret < 0)
1196 ✗ goto err;
1197 } else {
1198 // decode the frame part as the first slice
1199 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1200 ✗ slices[0].rawbuf - buf_start);
1201 ✗ if (ret < 0)
1202 ✗ goto err;
1203
1204 // and process the slices as additional slices afterwards
1205 ✗ for (i = 0 ; i < n_slices; i++) {
1206 ✗ s->gb = slices[i].gb;
1207 ✗ s->mb_y = slices[i].mby_start;
1208
1209 ✗ v->pic_header_flag = get_bits1(&s->gb);
1210 ✗ if (v->pic_header_flag) {
1211 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1212 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1213 ✗ ret = AVERROR_INVALIDDATA;
1214 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1215 ✗ goto err;
1216 ✗ continue;
1217 }
1218 }
1219
1220 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1221 ✗ slices[i].raw_size);
1222 ✗ if (ret < 0)
1223 ✗ goto err;
1224 }
1225 }
1226 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1227 ✗ goto err;
1228 }
1229 } else {
1230 489 int header_ret = 0;
1231
1232 489 ff_mpeg_er_frame_start(s);
1233
1234 489 v->end_mb_x = s->mb_width;
1235
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 489 if (v->field_mode) {
1236 37 s->cur_pic.linesize[0] <<= 1;
1237 37 s->cur_pic.linesize[1] <<= 1;
1238 37 s->cur_pic.linesize[2] <<= 1;
1239 37 s->linesize <<= 1;
1240 37 s->uvlinesize <<= 1;
1241 }
1242 489 mb_height = s->mb_height >> v->field_mode;
1243
1244
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 489 av_assert0 (mb_height > 0);
1245
1246
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 1618 for (i = 0; i <= n_slices; i++) {
1247
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 1129 if (i > 0 && slices[i - 1].mby_start >= mb_height) {
1248
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 37 if (v->field_mode <= 0) {
1249 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice %d starts beyond "
1250 "picture boundary (%d >= %d)\n", i,
1251 ✗ slices[i - 1].mby_start, mb_height);
1252 ✗ continue;
1253 }
1254 37 v->second_field = 1;
1255
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 37 av_assert0((s->mb_height & 1) == 0);
1256 37 v->blocks_off = s->b8_stride * (s->mb_height&~1);
1257 37 v->mb_off = s->mb_stride * s->mb_height >> 1;
1258 } else {
1259 1092 v->second_field = 0;
1260 1092 v->blocks_off = 0;
1261 1092 v->mb_off = 0;
1262 }
1263
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 1129 if (i) {
1264 640 v->pic_header_flag = 0;
1265
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 640 if (v->field_mode && i == n_slices1 + 2) {
1266
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 37 if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1267 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Field header damaged\n");
1268 ✗ ret = AVERROR_INVALIDDATA;
1269 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1270 ✗ goto err;
1271 ✗ continue;
1272 }
1273
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 603 } else if (get_bits1(&s->gb)) {
1274 273 v->pic_header_flag = 1;
1275
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 273 if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1276 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1277 ✗ ret = AVERROR_INVALIDDATA;
1278 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1279 ✗ goto err;
1280 ✗ continue;
1281 }
1282 }
1283 }
1284
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 1129 if (header_ret < 0)
1285 ✗ continue;
1286
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 1129 s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start % mb_height);
1287
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 1129 if (!v->field_mode || v->second_field)
1288
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 1092 s->end_mb_y = (i == n_slices ) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
1289 else {
1290
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 37 if (i >= n_slices) {
1291 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "first field slice count too large\n");
1292 ✗ continue;
1293 }
1294
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 37 s->end_mb_y = (i == n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
1295 }
1296
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 1129 if (s->end_mb_y <= s->start_mb_y) {
1297 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y);
1298 ✗ continue;
1299 }
1300
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 1129 if (((s->pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
1301
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 212 (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)) &&
1302
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 1026 !v->cbpcy_vlc) {
1303 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n");
1304 ✗ continue;
1305 }
1306 1129 ff_vc1_decode_blocks(v);
1307
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 1129 if (i != n_slices) {
1308 640 s->gb = slices[i].gb;
1309 }
1310 }
1311
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 489 if (v->field_mode) {
1312 37 v->second_field = 0;
1313 37 s->cur_pic.linesize[0] >>= 1;
1314 37 s->cur_pic.linesize[1] >>= 1;
1315 37 s->cur_pic.linesize[2] >>= 1;
1316 37 s->linesize >>= 1;
1317 37 s->uvlinesize >>= 1;
1318
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 37 if (v->s.pict_type != AV_PICTURE_TYPE_BI && v->s.pict_type != AV_PICTURE_TYPE_B) {
1319 19 FFSWAP(uint8_t *, v->mv_f_next[0], v->mv_f[0]);
1320 19 FFSWAP(uint8_t *, v->mv_f_next[1], v->mv_f[1]);
1321 }
1322 }
1323 ff_dlog(s->avctx, "Consumed %i/%i bits\n",
1324 get_bits_count(&s->gb), s->gb.size_in_bits);
1325 // if (get_bits_count(&s->gb) > buf_size * 8)
1326 // return -1;
1327
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 489 if(s->er.error_occurred && s->pict_type == AV_PICTURE_TYPE_B) {
1328 ✗ ret = AVERROR_INVALIDDATA;
1329 ✗ goto err;
1330 }
1331
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 489 if ( !v->field_mode
1332
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 452 && avctx->codec_id != AV_CODEC_ID_WMV3IMAGE
1333
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 452 && avctx->codec_id != AV_CODEC_ID_VC1IMAGE)
1334 452 ff_er_frame_end(&s->er, NULL);
1335 }
1336
1337 489 ff_mpv_frame_end(s);
1338
1339
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 489 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
1340 ✗ image:
1341 ✗ avctx->width = avctx->coded_width = v->output_width;
1342 ✗ avctx->height = avctx->coded_height = v->output_height;
1343 ✗ if (avctx->skip_frame >= AVDISCARD_NONREF)
1344 ✗ goto end;
1345 ✗ if (!v->sprite_output_frame &&
1346 ✗ !(v->sprite_output_frame = av_frame_alloc())) {
1347 ✗ ret = AVERROR(ENOMEM);
1348 ✗ goto err;
1349 }
1350 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
1351 ✗ if ((ret = vc1_decode_sprites(v, &s->gb)) < 0)
1352 ✗ goto err;
1353 #endif
1354 ✗ if ((ret = av_frame_ref(pict, v->sprite_output_frame)) < 0)
1355 ✗ goto err;
1356 ✗ *got_frame = 1;
1357 } else {
1358
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 489 if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
1359
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 249 if ((ret = av_frame_ref(pict, s->cur_pic.ptr->f)) < 0)
1360 ✗ goto err;
1361 249 ff_print_debug_info(s, s->cur_pic.ptr, pict);
1362 249 *got_frame = 1;
1363
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 240 } else if (s->last_pic.ptr) {
1364
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 223 if ((ret = av_frame_ref(pict, s->last_pic.ptr->f)) < 0)
1365 ✗ goto err;
1366 223 ff_print_debug_info(s, s->last_pic.ptr, pict);
1367 223 *got_frame = 1;
1368 }
1369 }
1370
1371 17 end:
1372 489 av_free(buf2);
1373
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 1129 for (i = 0; i < n_slices; i++)
1374 640 av_free(slices[i].buf);
1375 489 av_free(slices);
1376 489 return buf_size;
1377
1378 ✗ err:
1379 ✗ av_free(buf2);
1380 ✗ for (i = 0; i < n_slices; i++)
1381 ✗ av_free(slices[i].buf);
1382 ✗ av_free(slices);
1383 ✗ return ret;
1384 }
1385
1386
1387 const FFCodec ff_vc1_decoder = {
1388 .p.name = "vc1",
1389 CODEC_LONG_NAME("SMPTE VC-1"),
1390 .p.type = AVMEDIA_TYPE_VIDEO,
1391 .p.id = AV_CODEC_ID_VC1,
1392 .priv_data_size = sizeof(VC1Context),
1393 .init = vc1_decode_init,
1394 .close = ff_vc1_decode_end,
1395 FF_CODEC_DECODE_CB(vc1_decode_frame),
1396 .flush = ff_mpeg_flush,
1397 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
1398 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1399 #if CONFIG_VC1_DXVA2_HWACCEL
1400 HWACCEL_DXVA2(vc1),
1401 #endif
1402 #if CONFIG_VC1_D3D11VA_HWACCEL
1403 HWACCEL_D3D11VA(vc1),
1404 #endif
1405 #if CONFIG_VC1_D3D11VA2_HWACCEL
1406 HWACCEL_D3D11VA2(vc1),
1407 #endif
1408 #if CONFIG_VC1_D3D12VA_HWACCEL
1409 HWACCEL_D3D12VA(vc1),
1410 #endif
1411 #if CONFIG_VC1_NVDEC_HWACCEL
1412 HWACCEL_NVDEC(vc1),
1413 #endif
1414 #if CONFIG_VC1_VAAPI_HWACCEL
1415 HWACCEL_VAAPI(vc1),
1416 #endif
1417 #if CONFIG_VC1_VDPAU_HWACCEL
1418 HWACCEL_VDPAU(vc1),
1419 #endif
1420 NULL
1421 },
1422 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vc1_profiles)
1423 };
1424
1425 #if CONFIG_WMV3_DECODER
1426 const FFCodec ff_wmv3_decoder = {
1427 .p.name = "wmv3",
1428 CODEC_LONG_NAME("Windows Media Video 9"),
1429 .p.type = AVMEDIA_TYPE_VIDEO,
1430 .p.id = AV_CODEC_ID_WMV3,
1431 .priv_data_size = sizeof(VC1Context),
1432 .init = vc1_decode_init,
1433 .close = ff_vc1_decode_end,
1434 FF_CODEC_DECODE_CB(vc1_decode_frame),
1435 .flush = ff_mpeg_flush,
1436 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
1437 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1438 #if CONFIG_WMV3_DXVA2_HWACCEL
1439 HWACCEL_DXVA2(wmv3),
1440 #endif
1441 #if CONFIG_WMV3_D3D11VA_HWACCEL
1442 HWACCEL_D3D11VA(wmv3),
1443 #endif
1444 #if CONFIG_WMV3_D3D11VA2_HWACCEL
1445 HWACCEL_D3D11VA2(wmv3),
1446 #endif
1447 #if CONFIG_WMV3_D3D12VA_HWACCEL
1448 HWACCEL_D3D12VA(wmv3),
1449 #endif
1450 #if CONFIG_WMV3_NVDEC_HWACCEL
1451 HWACCEL_NVDEC(wmv3),
1452 #endif
1453 #if CONFIG_WMV3_VAAPI_HWACCEL
1454 HWACCEL_VAAPI(wmv3),
1455 #endif
1456 #if CONFIG_WMV3_VDPAU_HWACCEL
1457 HWACCEL_VDPAU(wmv3),
1458 #endif
1459 NULL
1460 },
1461 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vc1_profiles)
1462 };
1463 #endif
1464
1465 #if CONFIG_WMV3IMAGE_DECODER
1466 const FFCodec ff_wmv3image_decoder = {
1467 .p.name = "wmv3image",
1468 CODEC_LONG_NAME("Windows Media Video 9 Image"),
1469 .p.type = AVMEDIA_TYPE_VIDEO,
1470 .p.id = AV_CODEC_ID_WMV3IMAGE,
1471 .priv_data_size = sizeof(VC1Context),
1472 .init = vc1_decode_init,
1473 .close = ff_vc1_decode_end,
1474 FF_CODEC_DECODE_CB(vc1_decode_frame),
1475 .p.capabilities = AV_CODEC_CAP_DR1,
1476 .flush = vc1_sprite_flush,
1477 };
1478 #endif
1479
1480 #if CONFIG_VC1IMAGE_DECODER
1481 const FFCodec ff_vc1image_decoder = {
1482 .p.name = "vc1image",
1483 CODEC_LONG_NAME("Windows Media Video 9 Image v2"),
1484 .p.type = AVMEDIA_TYPE_VIDEO,
1485 .p.id = AV_CODEC_ID_VC1IMAGE,
1486 .priv_data_size = sizeof(VC1Context),
1487 .init = vc1_decode_init,
1488 .close = ff_vc1_decode_end,
1489 FF_CODEC_DECODE_CB(vc1_decode_frame),
1490 .p.capabilities = AV_CODEC_CAP_DR1,
1491 .flush = vc1_sprite_flush,
1492 };
1493 #endif
1494