FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/vc1dec.c
Date: 2025-03-08 20:38:41
Exec Total Coverage
Lines: 428 877 48.8%
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[0] = v->mb_type_base + s->b8_stride + 1;
400 34 v->mb_type[1] = v->mb_type_base + s->b8_stride * (mb_height * 2 + 1) + s->mb_stride + 1;
401 34 v->mb_type[2] = v->mb_type[1] + s->mb_stride * (mb_height + 1);
402
403 /* allocate memory to store block level MV info */
404 34 v->blk_mv_type_base = av_mallocz( s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
405
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 34 if (!v->blk_mv_type_base)
406 ✗ return AVERROR(ENOMEM);
407 34 v->blk_mv_type = v->blk_mv_type_base + s->b8_stride + 1;
408 34 v->mv_f_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2));
409
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 34 if (!v->mv_f_base)
410 ✗ return AVERROR(ENOMEM);
411 34 v->mv_f[0] = v->mv_f_base + s->b8_stride + 1;
412 34 v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
413 34 v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2));
414
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 34 if (!v->mv_f_next_base)
415 ✗ return AVERROR(ENOMEM);
416 34 v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1;
417 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);
418
419
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 34 if (s->avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || s->avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
420 ✗ for (i = 0; i < 4; i++)
421 ✗ if (!(v->sr_rows[i >> 1][i & 1] = av_malloc(v->output_width)))
422 ✗ return AVERROR(ENOMEM);
423 }
424
425 34 ret = ff_intrax8_common_init(s->avctx, &v->x8,
426 34 s->block, s->block_last_index,
427 s->mb_width, s->mb_height);
428
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 34 if (ret < 0)
429 ✗ return ret;
430
431 34 return 0;
432 }
433
434 34 static enum AVPixelFormat vc1_get_format(AVCodecContext *avctx)
435 {
436
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 34 if (avctx->codec_id == AV_CODEC_ID_MSS2)
437 12 return AV_PIX_FMT_YUV420P;
438
439 if (CONFIG_GRAY && (avctx->flags & AV_CODEC_FLAG_GRAY)) {
440 if (avctx->color_range == AVCOL_RANGE_UNSPECIFIED)
441 avctx->color_range = AVCOL_RANGE_MPEG;
442 return AV_PIX_FMT_GRAY8;
443 }
444
445
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 22 if (avctx->codec_id == AV_CODEC_ID_VC1IMAGE ||
446
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 22 avctx->codec_id == AV_CODEC_ID_WMV3IMAGE)
447 ✗ return AV_PIX_FMT_YUV420P;
448
449 22 return ff_get_format(avctx, vc1_hwaccel_pixfmt_list_420);
450 }
451
452 static void vc1_decode_reset(AVCodecContext *avctx);
453
454 34 av_cold int ff_vc1_decode_init(AVCodecContext *avctx)
455 {
456 34 VC1Context *const v = avctx->priv_data;
457 34 MpegEncContext *const s = &v->s;
458 int ret;
459
460 34 ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
461
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 34 if (ret < 0)
462 ✗ return ret;
463
464 34 ret = ff_mpv_decode_init(s, avctx);
465
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 34 if (ret < 0)
466 ✗ return ret;
467
468 34 avctx->pix_fmt = vc1_get_format(avctx);
469
470 34 ret = ff_mpv_common_init(s);
471
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 34 if (ret < 0)
472 ✗ return ret;
473
474 34 ff_permute_scantable(s->intra_scantable.permutated, ff_wmv1_scantable[1],
475 34 s->idsp.idct_permutation);
476
477 34 ret = vc1_decode_init_alloc_tables(v);
478
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 34 if (ret < 0) {
479 ✗ vc1_decode_reset(avctx);
480 ✗ return ret;
481 }
482 34 return 0;
483 }
484
485 34 av_cold void ff_vc1_init_transposed_scantables(VC1Context *v)
486 {
487 int i;
488
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 2210 for (i = 0; i < 64; i++) {
489 #define transpose(x) (((x) >> 3) | (((x) & 7) << 3))
490 2176 v->zz_8x8[0][i] = transpose(ff_wmv1_scantable[0][i]);
491 2176 v->zz_8x8[1][i] = transpose(ff_wmv1_scantable[1][i]);
492 2176 v->zz_8x8[2][i] = transpose(ff_wmv1_scantable[2][i]);
493 2176 v->zz_8x8[3][i] = transpose(ff_wmv1_scantable[3][i]);
494 2176 v->zzi_8x8[i] = transpose(ff_vc1_adv_interlaced_8x8_zz[i]);
495 }
496 34 v->left_blk_sh = 0;
497 34 v->top_blk_sh = 3;
498 34 }
499
500 18 static av_cold void vc1_init_static(void)
501 {
502 static VLCElem vlc_table[32372];
503 18 VLCInitState state = VLC_INIT_STATE(vlc_table);
504
505 18 VLC_INIT_STATIC_TABLE(ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
506 vc1_norm2_bits, 1, 1,
507 vc1_norm2_codes, 1, 1, 0);
508 18 VLC_INIT_STATIC_TABLE(ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
509 vc1_norm6_bits, 1, 1,
510 vc1_norm6_codes, 2, 2, 0);
511 18 VLC_INIT_STATIC_TABLE(ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
512 vc1_imode_bits, 1, 1,
513 vc1_imode_codes, 1, 1, 0);
514
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 72 for (int i = 0; i < 3; i++) {
515 54 ff_vc1_ttmb_vlc[i] =
516 54 ff_vlc_init_tables(&state, VC1_TTMB_VLC_BITS, 16,
517 54 vc1_ttmb_bits[i], 1, 1,
518 54 vc1_ttmb_codes[i], 2, 2, 0);
519 54 ff_vc1_ttblk_vlc[i] =
520 54 ff_vlc_init_tables(&state, VC1_TTBLK_VLC_BITS, 8,
521 54 vc1_ttblk_bits[i], 1, 1,
522 54 vc1_ttblk_codes[i], 1, 1, 0);
523 54 ff_vc1_subblkpat_vlc[i] =
524 54 ff_vlc_init_tables(&state, VC1_SUBBLKPAT_VLC_BITS, 15,
525 54 vc1_subblkpat_bits[i], 1, 1,
526 54 vc1_subblkpat_codes[i], 1, 1, 0);
527 }
528
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 90 for (int i = 0; i < 4; i++) {
529 72 ff_vc1_4mv_block_pattern_vlc[i] =
530 72 ff_vlc_init_tables(&state, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
531 72 vc1_4mv_block_pattern_bits[i], 1, 1,
532 72 vc1_4mv_block_pattern_codes[i], 1, 1, 0);
533 72 ff_vc1_cbpcy_p_vlc[i] =
534 72 ff_vlc_init_tables(&state, VC1_CBPCY_P_VLC_BITS, 64,
535 72 vc1_cbpcy_p_bits[i], 1, 1,
536 72 vc1_cbpcy_p_codes[i], 2, 2, 0);
537 72 ff_vc1_mv_diff_vlc[i] =
538 72 ff_vlc_init_tables(&state, VC1_MV_DIFF_VLC_BITS, 73,
539 72 vc1_mv_diff_bits[i], 1, 1,
540 72 vc1_mv_diff_codes[i], 2, 2, 0);
541 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
542 72 ff_vc1_intfr_4mv_mbmode_vlc[i] =
543 72 ff_vlc_init_tables(&state, VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
544 72 vc1_intfr_4mv_mbmode_bits[i], 1, 1,
545 72 vc1_intfr_4mv_mbmode_codes[i], 2, 2, 0);
546 /* initialize NON-4MV MBMODE VLC tables for the same */
547 72 ff_vc1_intfr_non4mv_mbmode_vlc[i] =
548 72 ff_vlc_init_tables(&state, VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
549 72 vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
550 72 vc1_intfr_non4mv_mbmode_codes[i], 1, 1, 0);
551 /* initialize interlaced MVDATA tables (1-Ref) */
552 72 ff_vc1_1ref_mvdata_vlc[i] =
553 72 ff_vlc_init_tables(&state, VC1_1REF_MVDATA_VLC_BITS, 72,
554 72 vc1_1ref_mvdata_bits[i], 1, 1,
555 72 vc1_1ref_mvdata_codes[i], 4, 4, 0);
556 /* Initialize 2MV Block pattern VLC tables */
557 72 ff_vc1_2mv_block_pattern_vlc[i] =
558 72 ff_vlc_init_tables(&state, VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
559 72 vc1_2mv_block_pattern_bits[i], 1, 1,
560 72 vc1_2mv_block_pattern_codes[i], 1, 1, 0);
561 }
562
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 162 for (int i = 0; i < 8; i++) {
563 144 ff_vc1_ac_coeff_table[i] =
564 144 ff_vlc_init_tables(&state, AC_VLC_BITS, ff_vc1_ac_sizes[i],
565 144 &vc1_ac_tables[i][0][1], 8, 4,
566 144 &vc1_ac_tables[i][0][0], 8, 4, 0);
567 /* initialize interlaced MVDATA tables (2-Ref) */
568 144 ff_vc1_2ref_mvdata_vlc[i] =
569 144 ff_vlc_init_tables(&state, VC1_2REF_MVDATA_VLC_BITS, 126,
570 144 vc1_2ref_mvdata_bits[i], 1, 1,
571 144 vc1_2ref_mvdata_codes[i], 4, 4, 0);
572 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
573 144 ff_vc1_icbpcy_vlc[i] =
574 144 ff_vlc_init_tables(&state, VC1_ICBPCY_VLC_BITS, 63,
575 144 vc1_icbpcy_p_bits[i], 1, 1,
576 144 vc1_icbpcy_p_codes[i], 2, 2, 0);
577 /* Initialize interlaced field picture MBMODE VLC tables */
578 144 ff_vc1_if_mmv_mbmode_vlc[i] =
579 144 ff_vlc_init_tables(&state, VC1_IF_MMV_MBMODE_VLC_BITS, 8,
580 144 vc1_if_mmv_mbmode_bits[i], 1, 1,
581 144 vc1_if_mmv_mbmode_codes[i], 1, 1, 0);
582 144 ff_vc1_if_1mv_mbmode_vlc[i] =
583 144 ff_vlc_init_tables(&state, VC1_IF_1MV_MBMODE_VLC_BITS, 6,
584 144 vc1_if_1mv_mbmode_bits[i], 1, 1,
585 144 vc1_if_1mv_mbmode_codes[i], 1, 1, 0);
586 }
587 18 ff_msmp4_vc1_vlcs_init_once();
588 18 }
589
590 /**
591 * Init VC-1 specific tables and VC1Context members
592 * @param v The VC1Context to initialize
593 * @return Status
594 */
595 34 av_cold void ff_vc1_init_common(VC1Context *v)
596 {
597 static AVOnce init_static_once = AV_ONCE_INIT;
598 34 MpegEncContext *const s = &v->s;
599
600 /* defaults */
601 34 v->pq = -1;
602 34 v->mvrange = 0; /* 7.1.1.18, p80 */
603
604 34 s->avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
605 34 s->out_format = FMT_H263;
606
607 34 s->h263_pred = 1;
608 34 s->msmpeg4_version = MSMP4_VC1;
609
610 34 ff_vc1dsp_init(&v->vc1dsp);
611
612 /* For error resilience */
613 34 ff_qpeldsp_init(&s->qdsp);
614
615 /* VLC tables */
616 34 ff_thread_once(&init_static_once, vc1_init_static);
617 34 }
618
619 /** Initialize a VC1/WMV3 decoder
620 * @todo TODO: Handle VC-1 IDUs (Transport level?)
621 * @todo TODO: Decipher remaining bits in extra_data
622 */
623 28 static av_cold int vc1_decode_init(AVCodecContext *avctx)
624 {
625 28 VC1Context *v = avctx->priv_data;
626 28 MpegEncContext *s = &v->s;
627 GetBitContext gb;
628 int ret;
629
630 /* save the container output size for WMImage */
631 28 v->output_width = avctx->width;
632 28 v->output_height = avctx->height;
633
634
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 28 if (!avctx->extradata_size || !avctx->extradata)
635 6 return AVERROR_INVALIDDATA;
636 22 v->s.avctx = avctx;
637
638 22 ff_vc1_init_common(v);
639
640
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 29 if (avctx->codec_id == AV_CODEC_ID_WMV3 || avctx->codec_id == AV_CODEC_ID_WMV3IMAGE) {
641 7 int count = 0;
642
643 // looks like WMV3 has a sequence header stored in the extradata
644 // advanced sequence header may be before the first frame
645 // the last byte of the extradata is a version number, 1 for the
646 // samples we can decode
647
648 7 ret = init_get_bits8(&gb, avctx->extradata, avctx->extradata_size);
649
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 7 if (ret < 0)
650 ✗ return ret;
651
652
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 7 if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0)
653 ✗ return ret;
654
655
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 7 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE && !v->res_sprite) {
656 ✗ avpriv_request_sample(avctx, "Non sprite WMV3IMAGE");
657 ✗ return AVERROR_PATCHWELCOME;
658 }
659
660 7 count = avctx->extradata_size*8 - get_bits_count(&gb);
661
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 7 if (count > 0) {
662 ✗ av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
663 count, get_bits_long(&gb, FFMIN(count, 32)));
664
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 7 } else if (count < 0) {
665 ✗ av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
666 }
667 } else { // VC1/WVC1/WVP2
668 15 const uint8_t *start = avctx->extradata;
669 15 const uint8_t *end = avctx->extradata + avctx->extradata_size;
670 const uint8_t *next;
671 int size, buf2_size;
672 15 uint8_t *buf2 = NULL;
673 15 int seq_initialized = 0, ep_initialized = 0;
674
675
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 15 if (avctx->extradata_size < 16) {
676 ✗ av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
677 ✗ return AVERROR_INVALIDDATA;
678 }
679
680 15 buf2 = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
681
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 15 if (!buf2)
682 ✗ return AVERROR(ENOMEM);
683
684 15 start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv
685 15 next = start;
686
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 55 for (; next < end; start = next) {
687 40 next = find_next_marker(start + 4, end);
688 40 size = next - start - 4;
689
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 40 if (size <= 0)
690 ✗ continue;
691 40 buf2_size = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
692 40 init_get_bits(&gb, buf2, buf2_size * 8);
693
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 40 switch (AV_RB32(start)) {
694 15 case VC1_CODE_SEQHDR:
695
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 15 if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) {
696 ✗ av_free(buf2);
697 ✗ return ret;
698 }
699 15 seq_initialized = 1;
700 15 break;
701 25 case VC1_CODE_ENTRYPOINT:
702
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 25 if ((ret = ff_vc1_decode_entry_point(avctx, v, &gb)) < 0) {
703 ✗ av_free(buf2);
704 ✗ return ret;
705 }
706 25 ep_initialized = 1;
707 25 break;
708 }
709 }
710 15 av_free(buf2);
711
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 15 if (!seq_initialized || !ep_initialized) {
712 ✗ av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n");
713 ✗ return AVERROR_INVALIDDATA;
714 }
715 15 v->res_sprite = (avctx->codec_id == AV_CODEC_ID_VC1IMAGE);
716 }
717
718 22 avctx->profile = v->profile;
719
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 22 if (v->profile == PROFILE_ADVANCED)
720 15 avctx->level = v->level;
721
722 22 ff_blockdsp_init(&s->bdsp);
723 22 ff_h264chroma_init(&v->h264chroma, 8);
724
725 22 avctx->has_b_frames = !!avctx->max_b_frames;
726
727
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 22 if (v->color_prim == 1 || v->color_prim == 5 || v->color_prim == 6)
728 ✗ avctx->color_primaries = v->color_prim;
729
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 22 if (v->transfer_char == 1 || v->transfer_char == 7)
730 ✗ avctx->color_trc = v->transfer_char;
731
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 22 if (v->matrix_coef == 1 || v->matrix_coef == 6 || v->matrix_coef == 7)
732 ✗ avctx->colorspace = v->matrix_coef;
733
734 22 s->mb_width = (avctx->coded_width + 15) >> 4;
735 22 s->mb_height = (avctx->coded_height + 15) >> 4;
736
737
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 22 if (v->profile == PROFILE_ADVANCED || v->res_fasttx) {
738 22 ff_vc1_init_transposed_scantables(v);
739 } else {
740 ✗ memcpy(v->zz_8x8, ff_wmv1_scantable, 4*64);
741 ✗ v->left_blk_sh = 3;
742 ✗ v->top_blk_sh = 0;
743 ✗ v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_int16_8bit;
744 ✗ v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
745 ✗ v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
746 ✗ v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
747 ✗ v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_int16_8bit;
748 ✗ v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
749 ✗ v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
750 ✗ v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
751 }
752
753
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 22 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
754 ✗ v->sprite_width = avctx->coded_width;
755 ✗ v->sprite_height = avctx->coded_height;
756
757 ✗ avctx->coded_width = avctx->width = v->output_width;
758 ✗ avctx->coded_height = avctx->height = v->output_height;
759
760 // prevent 16.16 overflows
761 ✗ if (v->sprite_width > 1 << 14 ||
762 ✗ v->sprite_height > 1 << 14 ||
763 ✗ v->output_width > 1 << 14 ||
764 ✗ v->output_height > 1 << 14) {
765 ✗ return AVERROR_INVALIDDATA;
766 }
767
768 ✗ if ((v->sprite_width&1) || (v->sprite_height&1)) {
769 ✗ avpriv_request_sample(avctx, "odd sprites support");
770 ✗ return AVERROR_PATCHWELCOME;
771 }
772 }
773 22 return 0;
774 }
775
776 34 static av_cold void vc1_decode_reset(AVCodecContext *avctx)
777 {
778 34 VC1Context *v = avctx->priv_data;
779 int i;
780
781 34 av_frame_free(&v->sprite_output_frame);
782
783
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 170 for (i = 0; i < 4; i++)
784 136 av_freep(&v->sr_rows[i >> 1][i & 1]);
785 34 ff_mpv_common_end(&v->s);
786 34 memset(v->s.block_index, 0, sizeof(v->s.block_index));
787 34 av_freep(&v->mv_type_mb_plane);
788 34 av_freep(&v->direct_mb_plane);
789 34 av_freep(&v->forward_mb_plane);
790 34 av_freep(&v->fieldtx_plane);
791 34 av_freep(&v->acpred_plane);
792 34 av_freep(&v->over_flags_plane);
793 34 av_freep(&v->mb_type_base);
794 34 av_freep(&v->blk_mv_type_base);
795 34 av_freep(&v->mv_f_base);
796 34 av_freep(&v->mv_f_next_base);
797 34 av_freep(&v->block);
798 34 av_freep(&v->cbp_base);
799 34 av_freep(&v->ttblk_base);
800 34 av_freep(&v->is_intra_base); // FIXME use v->mb_type[]
801 34 av_freep(&v->luma_mv_base);
802 34 ff_intrax8_common_end(&v->x8);
803 34 }
804
805 /**
806 * Close a MSS2/VC1/WMV3 decoder
807 */
808 34 av_cold int ff_vc1_decode_end(AVCodecContext *avctx)
809 {
810 34 vc1_decode_reset(avctx);
811 34 return ff_mpv_decode_close(avctx);
812 }
813
814 /** Decode a VC1/WMV3 frame
815 * @todo TODO: Handle VC-1 IDUs (Transport level?)
816 */
817 507 static int vc1_decode_frame(AVCodecContext *avctx, AVFrame *pict,
818 int *got_frame, AVPacket *avpkt)
819 {
820 507 const uint8_t *buf = avpkt->data;
821 507 int buf_size = avpkt->size, n_slices = 0, i, ret;
822 507 VC1Context *v = avctx->priv_data;
823 507 MpegEncContext *s = &v->s;
824 507 uint8_t *buf2 = NULL;
825 507 const uint8_t *buf_start = buf, *buf_start_second_field = NULL;
826 507 int mb_height, n_slices1=-1;
827 struct {
828 uint8_t *buf;
829 GetBitContext gb;
830 int mby_start;
831 const uint8_t *rawbuf;
832 int raw_size;
833 507 } *slices = NULL, *tmp;
834 507 unsigned slices_allocated = 0;
835
836 507 v->second_field = 0;
837
838
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 507 if(s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY)
839 ✗ s->low_delay = 1;
840
841 /* no supplementary picture */
842
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 507 if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) {
843 /* special case for last picture */
844
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 18 if (s->low_delay == 0 && s->next_pic.ptr) {
845
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 8 if ((ret = av_frame_ref(pict, s->next_pic.ptr->f)) < 0)
846 ✗ return ret;
847 8 ff_mpv_unref_picture(&s->next_pic);
848
849 8 *got_frame = 1;
850 }
851
852 18 return buf_size;
853 }
854
855 //for advanced profile we may need to parse and unescape data
856
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 795 if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
857 306 int buf_size2 = 0;
858 306 size_t next_allocated = 0;
859 306 buf2 = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
860
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 306 if (!buf2)
861 ✗ return AVERROR(ENOMEM);
862
863
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 306 if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */
864 const uint8_t *start, *end, *next;
865 int size;
866
867 306 next = buf;
868
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 1294 for (start = buf, end = buf + buf_size; next < end; start = next) {
869 988 next = find_next_marker(start + 4, end);
870 988 size = next - start - 4;
871
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 988 if (size <= 0) continue;
872
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 988 switch (AV_RB32(start)) {
873 306 case VC1_CODE_FRAME:
874 306 buf_start = start;
875 306 buf_size2 = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
876 306 break;
877 37 case VC1_CODE_FIELD: {
878 int buf_size3;
879 37 buf_start_second_field = start;
880 37 av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
881
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 37 tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
882
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 37 if (!tmp) {
883 ✗ ret = AVERROR(ENOMEM);
884 ✗ goto err;
885 }
886 37 slices = tmp;
887 37 slices[n_slices].buf = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
888
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 37 if (!slices[n_slices].buf) {
889 ✗ ret = AVERROR(ENOMEM);
890 ✗ goto err;
891 }
892 37 buf_size3 = v->vc1dsp.vc1_unescape_buffer(start + 4, size,
893 37 slices[n_slices].buf);
894 37 init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
895 buf_size3 << 3);
896 37 slices[n_slices].mby_start = avctx->coded_height + 31 >> 5;
897 37 slices[n_slices].rawbuf = start;
898 37 slices[n_slices].raw_size = size + 4;
899 37 n_slices1 = n_slices - 1; // index of the last slice of the first field
900 37 n_slices++;
901 37 break;
902 }
903 26 case VC1_CODE_ENTRYPOINT: /* it should be before frame data */
904 26 buf_size2 = v->vc1dsp.vc1_unescape_buffer(start + 4, size, buf2);
905 26 init_get_bits(&s->gb, buf2, buf_size2 * 8);
906 26 ff_vc1_decode_entry_point(avctx, v, &s->gb);
907 26 break;
908 603 case VC1_CODE_SLICE: {
909 int buf_size3;
910 603 av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
911
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 603 tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
912
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 603 if (!tmp) {
913 ✗ ret = AVERROR(ENOMEM);
914 ✗ goto err;
915 }
916 603 slices = tmp;
917 603 slices[n_slices].buf = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
918
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 603 if (!slices[n_slices].buf) {
919 ✗ ret = AVERROR(ENOMEM);
920 ✗ goto err;
921 }
922 603 buf_size3 = v->vc1dsp.vc1_unescape_buffer(start + 4, size,
923 603 slices[n_slices].buf);
924 603 init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
925 buf_size3 << 3);
926 603 slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9);
927 603 slices[n_slices].rawbuf = start;
928 603 slices[n_slices].raw_size = size + 4;
929 603 n_slices++;
930 603 break;
931 }
932 }
933 }
934 ✗ } else if (v->interlace && ((buf[0] & 0xC0) == 0xC0)) { /* WVC1 interlaced stores both fields divided by marker */
935 const uint8_t *divider;
936 int buf_size3;
937
938 ✗ divider = find_next_marker(buf, buf + buf_size);
939 ✗ if ((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD) {
940 ✗ av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
941 ✗ ret = AVERROR_INVALIDDATA;
942 ✗ goto err;
943 } else { // found field marker, unescape second field
944 ✗ buf_start_second_field = divider;
945 ✗ av_size_mult(sizeof(*slices), n_slices+1, &next_allocated);
946 ✗ tmp = next_allocated ? av_fast_realloc(slices, &slices_allocated, next_allocated) : NULL;
947 ✗ if (!tmp) {
948 ✗ ret = AVERROR(ENOMEM);
949 ✗ goto err;
950 }
951 ✗ slices = tmp;
952 ✗ slices[n_slices].buf = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
953 ✗ if (!slices[n_slices].buf) {
954 ✗ ret = AVERROR(ENOMEM);
955 ✗ goto err;
956 }
957 ✗ buf_size3 = v->vc1dsp.vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf);
958 ✗ init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
959 buf_size3 << 3);
960 ✗ slices[n_slices].mby_start = s->mb_height + 1 >> 1;
961 ✗ slices[n_slices].rawbuf = divider;
962 ✗ slices[n_slices].raw_size = buf + buf_size - divider;
963 ✗ n_slices1 = n_slices - 1;
964 ✗ n_slices++;
965 }
966 ✗ buf_size2 = v->vc1dsp.vc1_unescape_buffer(buf, divider - buf, buf2);
967 } else {
968 ✗ buf_size2 = v->vc1dsp.vc1_unescape_buffer(buf, buf_size, buf2);
969 }
970 306 init_get_bits(&s->gb, buf2, buf_size2*8);
971 } else{
972 183 ret = init_get_bits8(&s->gb, buf, buf_size);
973
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 183 if (ret < 0)
974 ✗ return ret;
975 }
976
977
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 489 if (v->res_sprite) {
978 ✗ v->new_sprite = !get_bits1(&s->gb);
979 ✗ v->two_sprites = get_bits1(&s->gb);
980 /* res_sprite means a Windows Media Image stream, AV_CODEC_ID_*IMAGE means
981 we're using the sprite compositor. These are intentionally kept separate
982 so you can get the raw sprites by using the wmv3 decoder for WMVP or
983 the vc1 one for WVP2 */
984 ✗ if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
985 ✗ if (v->new_sprite) {
986 // switch AVCodecContext parameters to those of the sprites
987 ✗ avctx->width = avctx->coded_width = v->sprite_width;
988 ✗ avctx->height = avctx->coded_height = v->sprite_height;
989 } else {
990 ✗ goto image;
991 }
992 }
993 }
994
995
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 489 if (s->context_initialized &&
996
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 467 (s->width != avctx->coded_width ||
997
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 467 s->height != avctx->coded_height)) {
998 ✗ vc1_decode_reset(avctx);
999 }
1000
1001
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 489 if (!s->context_initialized) {
1002 22 ret = ff_vc1_decode_init(avctx);
1003
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 22 if (ret < 0)
1004 ✗ goto err;
1005
1006
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 22 s->low_delay = !avctx->has_b_frames || v->res_sprite;
1007
1008
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 22 if (v->profile == PROFILE_ADVANCED) {
1009
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 15 if(avctx->coded_width<=1 || avctx->coded_height<=1) {
1010 ✗ ret = AVERROR_INVALIDDATA;
1011 ✗ goto err;
1012 }
1013 15 s->h_edge_pos = avctx->coded_width;
1014 15 s->v_edge_pos = avctx->coded_height;
1015 }
1016 }
1017
1018 // do parse frame header
1019 489 v->pic_header_flag = 0;
1020 489 v->first_pic_header_flag = 1;
1021
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 489 if (v->profile < PROFILE_ADVANCED) {
1022
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 183 if ((ret = ff_vc1_parse_frame_header(v, &s->gb)) < 0) {
1023 ✗ goto err;
1024 }
1025 } else {
1026
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 306 if ((ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1027 ✗ goto err;
1028 }
1029 }
1030 489 v->first_pic_header_flag = 0;
1031
1032
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 489 if (avctx->debug & FF_DEBUG_PICT_INFO)
1033 ✗ av_log(v->s.avctx, AV_LOG_DEBUG, "pict_type: %c\n", av_get_picture_type_char(s->pict_type));
1034
1035
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 489 if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE)
1036 ✗ && s->pict_type != AV_PICTURE_TYPE_I) {
1037 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected I-frame\n");
1038 ✗ ret = AVERROR_INVALIDDATA;
1039 ✗ goto err;
1040 }
1041
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 489 if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE)
1042 ✗ && v->field_mode) {
1043 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected Frames not Fields\n");
1044 ✗ ret = AVERROR_INVALIDDATA;
1045 ✗ goto err;
1046 }
1047
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 489 if ((s->mb_height >> v->field_mode) == 0) {
1048 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "image too short\n");
1049 ✗ ret = AVERROR_INVALIDDATA;
1050 ✗ goto err;
1051 }
1052
1053 /* skip B-frames if we don't have reference frames */
1054
3/4
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 489 if (!s->last_pic.ptr && s->pict_type == AV_PICTURE_TYPE_B) {
1055 ✗ av_log(v->s.avctx, AV_LOG_DEBUG, "Skipping B frame without reference frames\n");
1056 ✗ goto end;
1057 }
1058
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 489 if ((avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) ||
1059
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 489 (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) ||
1060
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 489 avctx->skip_frame >= AVDISCARD_ALL) {
1061 ✗ goto end;
1062 }
1063
1064
1/2
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✓ Branch 2 taken 489 times.
 489 if ((ret = ff_mpv_frame_start(s, avctx)) < 0) {
1065 ✗ goto err;
1066 }
1067
1068 489 v->s.cur_pic.ptr->field_picture = v->field_mode;
1069
2/2
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 489 v->s.cur_pic.ptr->f->flags |= AV_FRAME_FLAG_INTERLACED * (v->fcm != PROGRESSIVE);
1070
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 489 v->s.cur_pic.ptr->f->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST * !!v->tff;
1071
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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;
1072
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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;
1073
1074 // process pulldown flags
1075 489 s->cur_pic.ptr->f->repeat_pict = 0;
1076 // Pulldown flags are only valid when 'broadcast' has been set.
1077
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 489 if (v->rff) {
1078 // repeat field
1079 ✗ s->cur_pic.ptr->f->repeat_pict = 1;
1080
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 489 } else if (v->rptfrm) {
1081 // repeat frames
1082 ✗ s->cur_pic.ptr->f->repeat_pict = v->rptfrm * 2;
1083 }
1084
1085
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 489 if (avctx->hwaccel) {
1086 ✗ const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel);
1087 ✗ s->mb_y = 0;
1088 ✗ if (v->field_mode && buf_start_second_field) {
1089 // decode first field
1090 ✗ s->picture_structure = PICT_BOTTOM_FIELD - v->tff;
1091 ✗ ret = hwaccel->start_frame(avctx, buf_start,
1092 ✗ buf_start_second_field - buf_start);
1093 ✗ if (ret < 0)
1094 ✗ goto err;
1095
1096 ✗ if (n_slices1 == -1) {
1097 // no slices, decode the field as-is
1098 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1099 ✗ buf_start_second_field - buf_start);
1100 ✗ if (ret < 0)
1101 ✗ goto err;
1102 } else {
1103 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1104 ✗ slices[0].rawbuf - buf_start);
1105 ✗ if (ret < 0)
1106 ✗ goto err;
1107
1108 ✗ for (i = 0 ; i < n_slices1 + 1; i++) {
1109 ✗ s->gb = slices[i].gb;
1110 ✗ s->mb_y = slices[i].mby_start;
1111
1112 ✗ v->pic_header_flag = get_bits1(&s->gb);
1113 ✗ if (v->pic_header_flag) {
1114 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1115 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1116 ✗ ret = AVERROR_INVALIDDATA;
1117 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1118 ✗ goto err;
1119 ✗ continue;
1120 }
1121 }
1122
1123 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1124 ✗ slices[i].raw_size);
1125 ✗ if (ret < 0)
1126 ✗ goto err;
1127 }
1128 }
1129
1130 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1131 ✗ goto err;
1132
1133 // decode second field
1134 ✗ s->gb = slices[n_slices1 + 1].gb;
1135 ✗ s->mb_y = slices[n_slices1 + 1].mby_start;
1136 ✗ s->picture_structure = PICT_TOP_FIELD + v->tff;
1137 ✗ v->second_field = 1;
1138 ✗ v->pic_header_flag = 0;
1139 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1140 ✗ av_log(avctx, AV_LOG_ERROR, "parsing header for second field failed");
1141 ✗ ret = AVERROR_INVALIDDATA;
1142 ✗ goto err;
1143 }
1144 ✗ v->s.cur_pic.ptr->f->pict_type = v->s.pict_type;
1145
1146 ✗ ret = hwaccel->start_frame(avctx, buf_start_second_field,
1147 ✗ (buf + buf_size) - buf_start_second_field);
1148 ✗ if (ret < 0)
1149 ✗ goto err;
1150
1151 ✗ if (n_slices - n_slices1 == 2) {
1152 // no slices, decode the field as-is
1153 ✗ ret = hwaccel->decode_slice(avctx, buf_start_second_field,
1154 ✗ (buf + buf_size) - buf_start_second_field);
1155 ✗ if (ret < 0)
1156 ✗ goto err;
1157 } else {
1158 ✗ ret = hwaccel->decode_slice(avctx, buf_start_second_field,
1159 ✗ slices[n_slices1 + 2].rawbuf - buf_start_second_field);
1160 ✗ if (ret < 0)
1161 ✗ goto err;
1162
1163 ✗ for (i = n_slices1 + 2; i < n_slices; i++) {
1164 ✗ s->gb = slices[i].gb;
1165 ✗ s->mb_y = slices[i].mby_start;
1166
1167 ✗ v->pic_header_flag = get_bits1(&s->gb);
1168 ✗ if (v->pic_header_flag) {
1169 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1170 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1171 ✗ ret = AVERROR_INVALIDDATA;
1172 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1173 ✗ goto err;
1174 ✗ continue;
1175 }
1176 }
1177
1178 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1179 ✗ slices[i].raw_size);
1180 ✗ if (ret < 0)
1181 ✗ goto err;
1182 }
1183 }
1184
1185 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1186 ✗ goto err;
1187 } else {
1188 ✗ s->picture_structure = PICT_FRAME;
1189 ✗ ret = hwaccel->start_frame(avctx, buf_start,
1190 ✗ (buf + buf_size) - buf_start);
1191 ✗ if (ret < 0)
1192 ✗ goto err;
1193
1194 ✗ if (n_slices == 0) {
1195 // no slices, decode the frame as-is
1196 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1197 ✗ (buf + buf_size) - buf_start);
1198 ✗ if (ret < 0)
1199 ✗ goto err;
1200 } else {
1201 // decode the frame part as the first slice
1202 ✗ ret = hwaccel->decode_slice(avctx, buf_start,
1203 ✗ slices[0].rawbuf - buf_start);
1204 ✗ if (ret < 0)
1205 ✗ goto err;
1206
1207 // and process the slices as additional slices afterwards
1208 ✗ for (i = 0 ; i < n_slices; i++) {
1209 ✗ s->gb = slices[i].gb;
1210 ✗ s->mb_y = slices[i].mby_start;
1211
1212 ✗ v->pic_header_flag = get_bits1(&s->gb);
1213 ✗ if (v->pic_header_flag) {
1214 ✗ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
1215 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1216 ✗ ret = AVERROR_INVALIDDATA;
1217 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1218 ✗ goto err;
1219 ✗ continue;
1220 }
1221 }
1222
1223 ✗ ret = hwaccel->decode_slice(avctx, slices[i].rawbuf,
1224 ✗ slices[i].raw_size);
1225 ✗ if (ret < 0)
1226 ✗ goto err;
1227 }
1228 }
1229 ✗ if ((ret = hwaccel->end_frame(avctx)) < 0)
1230 ✗ goto err;
1231 }
1232 } else {
1233 489 int header_ret = 0;
1234
1235 489 ff_mpeg_er_frame_start(s);
1236
1237 489 v->end_mb_x = s->mb_width;
1238
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 489 if (v->field_mode) {
1239 37 s->cur_pic.linesize[0] <<= 1;
1240 37 s->cur_pic.linesize[1] <<= 1;
1241 37 s->cur_pic.linesize[2] <<= 1;
1242 37 s->linesize <<= 1;
1243 37 s->uvlinesize <<= 1;
1244 }
1245 489 mb_height = s->mb_height >> v->field_mode;
1246
1247
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 489 av_assert0 (mb_height > 0);
1248
1249
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 1618 for (i = 0; i <= n_slices; i++) {
1250
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✓ Branch 3 taken 603 times.
 1129 if (i > 0 && slices[i - 1].mby_start >= mb_height) {
1251
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 37 if (v->field_mode <= 0) {
1252 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice %d starts beyond "
1253 "picture boundary (%d >= %d)\n", i,
1254 ✗ slices[i - 1].mby_start, mb_height);
1255 ✗ continue;
1256 }
1257 37 v->second_field = 1;
1258
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 37 av_assert0((s->mb_height & 1) == 0);
1259 37 v->blocks_off = s->b8_stride * (s->mb_height&~1);
1260 37 v->mb_off = s->mb_stride * s->mb_height >> 1;
1261 } else {
1262 1092 v->second_field = 0;
1263 1092 v->blocks_off = 0;
1264 1092 v->mb_off = 0;
1265 }
1266
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 1129 if (i) {
1267 640 v->pic_header_flag = 0;
1268
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 640 if (v->field_mode && i == n_slices1 + 2) {
1269
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 37 if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1270 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Field header damaged\n");
1271 ✗ ret = AVERROR_INVALIDDATA;
1272 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1273 ✗ goto err;
1274 ✗ continue;
1275 }
1276
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 603 } else if (get_bits1(&s->gb)) {
1277 273 v->pic_header_flag = 1;
1278
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 273 if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) {
1279 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
1280 ✗ ret = AVERROR_INVALIDDATA;
1281 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
1282 ✗ goto err;
1283 ✗ continue;
1284 }
1285 }
1286 }
1287
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 1129 if (header_ret < 0)
1288 ✗ continue;
1289
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 1129 s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start % mb_height);
1290
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 1129 if (!v->field_mode || v->second_field)
1291
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 1092 s->end_mb_y = (i == n_slices ) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
1292 else {
1293
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 37 if (i >= n_slices) {
1294 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "first field slice count too large\n");
1295 ✗ continue;
1296 }
1297
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 37 s->end_mb_y = (i == n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
1298 }
1299
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 1129 if (s->end_mb_y <= s->start_mb_y) {
1300 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y);
1301 ✗ continue;
1302 }
1303
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 1129 if (((s->pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
1304
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 212 (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)) &&
1305
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 1026 !v->cbpcy_vlc) {
1306 ✗ av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n");
1307 ✗ continue;
1308 }
1309 1129 ff_vc1_decode_blocks(v);
1310
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 1129 if (i != n_slices) {
1311 640 s->gb = slices[i].gb;
1312 }
1313 }
1314
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 489 if (v->field_mode) {
1315 37 v->second_field = 0;
1316 37 s->cur_pic.linesize[0] >>= 1;
1317 37 s->cur_pic.linesize[1] >>= 1;
1318 37 s->cur_pic.linesize[2] >>= 1;
1319 37 s->linesize >>= 1;
1320 37 s->uvlinesize >>= 1;
1321
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 37 if (v->s.pict_type != AV_PICTURE_TYPE_BI && v->s.pict_type != AV_PICTURE_TYPE_B) {
1322 19 FFSWAP(uint8_t *, v->mv_f_next[0], v->mv_f[0]);
1323 19 FFSWAP(uint8_t *, v->mv_f_next[1], v->mv_f[1]);
1324 }
1325 }
1326 ff_dlog(s->avctx, "Consumed %i/%i bits\n",
1327 get_bits_count(&s->gb), s->gb.size_in_bits);
1328 // if (get_bits_count(&s->gb) > buf_size * 8)
1329 // return -1;
1330
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 489 if(s->er.error_occurred && s->pict_type == AV_PICTURE_TYPE_B) {
1331 ✗ ret = AVERROR_INVALIDDATA;
1332 ✗ goto err;
1333 }
1334
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 489 if ( !v->field_mode
1335
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 452 && avctx->codec_id != AV_CODEC_ID_WMV3IMAGE
1336
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 452 && avctx->codec_id != AV_CODEC_ID_VC1IMAGE)
1337 452 ff_er_frame_end(&s->er, NULL);
1338 }
1339
1340 489 ff_mpv_frame_end(s);
1341
1342
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 489 if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
1343 ✗ image:
1344 ✗ avctx->width = avctx->coded_width = v->output_width;
1345 ✗ avctx->height = avctx->coded_height = v->output_height;
1346 ✗ if (avctx->skip_frame >= AVDISCARD_NONREF)
1347 ✗ goto end;
1348 ✗ if (!v->sprite_output_frame &&
1349 ✗ !(v->sprite_output_frame = av_frame_alloc())) {
1350 ✗ ret = AVERROR(ENOMEM);
1351 ✗ goto err;
1352 }
1353 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
1354 ✗ if ((ret = vc1_decode_sprites(v, &s->gb)) < 0)
1355 ✗ goto err;
1356 #endif
1357 ✗ if ((ret = av_frame_ref(pict, v->sprite_output_frame)) < 0)
1358 ✗ goto err;
1359 ✗ *got_frame = 1;
1360 } else {
1361
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 489 if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
1362
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 249 if ((ret = av_frame_ref(pict, s->cur_pic.ptr->f)) < 0)
1363 ✗ goto err;
1364 249 ff_print_debug_info(s, s->cur_pic.ptr, pict);
1365 249 *got_frame = 1;
1366
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 240 } else if (s->last_pic.ptr) {
1367
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 223 if ((ret = av_frame_ref(pict, s->last_pic.ptr->f)) < 0)
1368 ✗ goto err;
1369 223 ff_print_debug_info(s, s->last_pic.ptr, pict);
1370 223 *got_frame = 1;
1371 }
1372 }
1373
1374 17 end:
1375 489 av_free(buf2);
1376
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 1129 for (i = 0; i < n_slices; i++)
1377 640 av_free(slices[i].buf);
1378 489 av_free(slices);
1379 489 return buf_size;
1380
1381 ✗ err:
1382 ✗ av_free(buf2);
1383 ✗ for (i = 0; i < n_slices; i++)
1384 ✗ av_free(slices[i].buf);
1385 ✗ av_free(slices);
1386 ✗ return ret;
1387 }
1388
1389
1390 const FFCodec ff_vc1_decoder = {
1391 .p.name = "vc1",
1392 CODEC_LONG_NAME("SMPTE VC-1"),
1393 .p.type = AVMEDIA_TYPE_VIDEO,
1394 .p.id = AV_CODEC_ID_VC1,
1395 .priv_data_size = sizeof(VC1Context),
1396 .init = vc1_decode_init,
1397 .close = ff_vc1_decode_end,
1398 FF_CODEC_DECODE_CB(vc1_decode_frame),
1399 .flush = ff_mpeg_flush,
1400 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
1401 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1402 #if CONFIG_VC1_DXVA2_HWACCEL
1403 HWACCEL_DXVA2(vc1),
1404 #endif
1405 #if CONFIG_VC1_D3D11VA_HWACCEL
1406 HWACCEL_D3D11VA(vc1),
1407 #endif
1408 #if CONFIG_VC1_D3D11VA2_HWACCEL
1409 HWACCEL_D3D11VA2(vc1),
1410 #endif
1411 #if CONFIG_VC1_D3D12VA_HWACCEL
1412 HWACCEL_D3D12VA(vc1),
1413 #endif
1414 #if CONFIG_VC1_NVDEC_HWACCEL
1415 HWACCEL_NVDEC(vc1),
1416 #endif
1417 #if CONFIG_VC1_VAAPI_HWACCEL
1418 HWACCEL_VAAPI(vc1),
1419 #endif
1420 #if CONFIG_VC1_VDPAU_HWACCEL
1421 HWACCEL_VDPAU(vc1),
1422 #endif
1423 NULL
1424 },
1425 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vc1_profiles)
1426 };
1427
1428 #if CONFIG_WMV3_DECODER
1429 const FFCodec ff_wmv3_decoder = {
1430 .p.name = "wmv3",
1431 CODEC_LONG_NAME("Windows Media Video 9"),
1432 .p.type = AVMEDIA_TYPE_VIDEO,
1433 .p.id = AV_CODEC_ID_WMV3,
1434 .priv_data_size = sizeof(VC1Context),
1435 .init = vc1_decode_init,
1436 .close = ff_vc1_decode_end,
1437 FF_CODEC_DECODE_CB(vc1_decode_frame),
1438 .flush = ff_mpeg_flush,
1439 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
1440 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1441 #if CONFIG_WMV3_DXVA2_HWACCEL
1442 HWACCEL_DXVA2(wmv3),
1443 #endif
1444 #if CONFIG_WMV3_D3D11VA_HWACCEL
1445 HWACCEL_D3D11VA(wmv3),
1446 #endif
1447 #if CONFIG_WMV3_D3D11VA2_HWACCEL
1448 HWACCEL_D3D11VA2(wmv3),
1449 #endif
1450 #if CONFIG_WMV3_D3D12VA_HWACCEL
1451 HWACCEL_D3D12VA(wmv3),
1452 #endif
1453 #if CONFIG_WMV3_NVDEC_HWACCEL
1454 HWACCEL_NVDEC(wmv3),
1455 #endif
1456 #if CONFIG_WMV3_VAAPI_HWACCEL
1457 HWACCEL_VAAPI(wmv3),
1458 #endif
1459 #if CONFIG_WMV3_VDPAU_HWACCEL
1460 HWACCEL_VDPAU(wmv3),
1461 #endif
1462 NULL
1463 },
1464 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vc1_profiles)
1465 };
1466 #endif
1467
1468 #if CONFIG_WMV3IMAGE_DECODER
1469 const FFCodec ff_wmv3image_decoder = {
1470 .p.name = "wmv3image",
1471 CODEC_LONG_NAME("Windows Media Video 9 Image"),
1472 .p.type = AVMEDIA_TYPE_VIDEO,
1473 .p.id = AV_CODEC_ID_WMV3IMAGE,
1474 .priv_data_size = sizeof(VC1Context),
1475 .init = vc1_decode_init,
1476 .close = ff_vc1_decode_end,
1477 FF_CODEC_DECODE_CB(vc1_decode_frame),
1478 .p.capabilities = AV_CODEC_CAP_DR1,
1479 .flush = vc1_sprite_flush,
1480 };
1481 #endif
1482
1483 #if CONFIG_VC1IMAGE_DECODER
1484 const FFCodec ff_vc1image_decoder = {
1485 .p.name = "vc1image",
1486 CODEC_LONG_NAME("Windows Media Video 9 Image v2"),
1487 .p.type = AVMEDIA_TYPE_VIDEO,
1488 .p.id = AV_CODEC_ID_VC1IMAGE,
1489 .priv_data_size = sizeof(VC1Context),
1490 .init = vc1_decode_init,
1491 .close = ff_vc1_decode_end,
1492 FF_CODEC_DECODE_CB(vc1_decode_frame),
1493 .p.capabilities = AV_CODEC_CAP_DR1,
1494 .flush = vc1_sprite_flush,
1495 };
1496 #endif
1497