| 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 "avcodec.h" |
| 30 | #include "blockdsp.h" |
| 31 | #include "get_bits.h" |
| 32 | #include "internal.h" |
| 33 | #include "mpeg_er.h" |
| 34 | #include "mpegvideo.h" |
| 35 | #include "msmpeg4data.h" |
| 36 | #include "vc1.h" |
| 37 | #include "vc1data.h" |
| 38 | #include "vdpau_internal.h" |
| 39 | #include "libavutil/avassert.h" |
| 40 | |
| 41 | |
| 42 | #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER |
| 43 | |
| 44 | typedef struct { |
| 45 | /** |
| 46 | * Transform coefficients for both sprites in 16.16 fixed point format, |
| 47 | * in the order they appear in the bitstream: |
| 48 | * x scale |
| 49 | * rotation 1 (unused) |
| 50 | * x offset |
| 51 | * rotation 2 (unused) |
| 52 | * y scale |
| 53 | * y offset |
| 54 | * alpha |
| 55 | */ |
| 56 | int coefs[2][7]; |
| 57 | |
| 58 | int effect_type, effect_flag; |
| 59 | int effect_pcount1, effect_pcount2; ///< amount of effect parameters stored in effect_params |
| 60 | int effect_params1[15], effect_params2[10]; ///< effect parameters in 16.16 fixed point format |
| 61 | } SpriteData; |
| 62 | |
| 63 | static inline int get_fp_val(GetBitContext* gb) |
| 64 | { |
| 65 | return (get_bits_long(gb, 30) - (1 << 29)) << 1; |
| 66 | } |
| 67 | |
| 68 | static void vc1_sprite_parse_transform(GetBitContext* gb, int c[7]) |
| 69 | { |
| 70 | c[1] = c[3] = 0; |
| 71 | |
| 72 | switch (get_bits(gb, 2)) { |
| 73 | case 0: |
| 74 | c[0] = 1 << 16; |
| 75 | c[2] = get_fp_val(gb); |
| 76 | c[4] = 1 << 16; |
| 77 | break; |
| 78 | case 1: |
| 79 | c[0] = c[4] = get_fp_val(gb); |
| 80 | c[2] = get_fp_val(gb); |
| 81 | break; |
| 82 | case 2: |
| 83 | c[0] = get_fp_val(gb); |
| 84 | c[2] = get_fp_val(gb); |
| 85 | c[4] = get_fp_val(gb); |
| 86 | break; |
| 87 | case 3: |
| 88 | c[0] = get_fp_val(gb); |
| 89 | c[1] = get_fp_val(gb); |
| 90 | c[2] = get_fp_val(gb); |
| 91 | c[3] = get_fp_val(gb); |
| 92 | c[4] = get_fp_val(gb); |
| 93 | break; |
| 94 | } |
| 95 | c[5] = get_fp_val(gb); |
| 96 | if (get_bits1(gb)) |
| 97 | c[6] = get_fp_val(gb); |
| 98 | else |
| 99 | c[6] = 1 << 16; |
| 100 | } |
| 101 | |
| 102 | static int vc1_parse_sprites(VC1Context *v, GetBitContext* gb, SpriteData* sd) |
| 103 | { |
| 104 | AVCodecContext *avctx = v->s.avctx; |
| 105 | int sprite, i; |
| 106 | |
| 107 | for (sprite = 0; sprite <= v->two_sprites; sprite++) { |
| 108 | vc1_sprite_parse_transform(gb, sd->coefs[sprite]); |
| 109 | if (sd->coefs[sprite][1] || sd->coefs[sprite][3]) |
| 110 | avpriv_request_sample(avctx, "Non-zero rotation coefficients"); |
| 111 | av_log(avctx, AV_LOG_DEBUG, sprite ? "S2:" : "S1:"); |
| 112 | for (i = 0; i < 7; i++) |
| 113 | av_log(avctx, AV_LOG_DEBUG, " %d.%.3d", |
| 114 | sd->coefs[sprite][i] / (1<<16), |
| 115 | (abs(sd->coefs[sprite][i]) & 0xFFFF) * 1000 / (1 << 16)); |
| 116 | av_log(avctx, AV_LOG_DEBUG, "\n"); |
| 117 | } |
| 118 | |
| 119 | skip_bits(gb, 2); |
| 120 | if (sd->effect_type = get_bits_long(gb, 30)) { |
| 121 | switch (sd->effect_pcount1 = get_bits(gb, 4)) { |
| 122 | case 7: |
| 123 | vc1_sprite_parse_transform(gb, sd->effect_params1); |
| 124 | break; |
| 125 | case 14: |
| 126 | vc1_sprite_parse_transform(gb, sd->effect_params1); |
| 127 | vc1_sprite_parse_transform(gb, sd->effect_params1 + 7); |
| 128 | break; |
| 129 | default: |
| 130 | for (i = 0; i < sd->effect_pcount1; i++) |
| 131 | sd->effect_params1[i] = get_fp_val(gb); |
| 132 | } |
| 133 | if (sd->effect_type != 13 || sd->effect_params1[0] != sd->coefs[0][6]) { |
| 134 | // effect 13 is simple alpha blending and matches the opacity above |
| 135 | av_log(avctx, AV_LOG_DEBUG, "Effect: %d; params: ", sd->effect_type); |
| 136 | for (i = 0; i < sd->effect_pcount1; i++) |
| 137 | av_log(avctx, AV_LOG_DEBUG, " %d.%.2d", |
| 138 | sd->effect_params1[i] / (1 << 16), |
| 139 | (abs(sd->effect_params1[i]) & 0xFFFF) * 1000 / (1 << 16)); |
| 140 | av_log(avctx, AV_LOG_DEBUG, "\n"); |
| 141 | } |
| 142 | |
| 143 | sd->effect_pcount2 = get_bits(gb, 16); |
| 144 | if (sd->effect_pcount2 > 10) { |
| 145 | av_log(avctx, AV_LOG_ERROR, "Too many effect parameters\n"); |
| 146 | return AVERROR_INVALIDDATA; |
| 147 | } else if (sd->effect_pcount2) { |
| 148 | i = -1; |
| 149 | av_log(avctx, AV_LOG_DEBUG, "Effect params 2: "); |
| 150 | while (++i < sd->effect_pcount2) { |
| 151 | sd->effect_params2[i] = get_fp_val(gb); |
| 152 | av_log(avctx, AV_LOG_DEBUG, " %d.%.2d", |
| 153 | sd->effect_params2[i] / (1 << 16), |
| 154 | (abs(sd->effect_params2[i]) & 0xFFFF) * 1000 / (1 << 16)); |
| 155 | } |
| 156 | av_log(avctx, AV_LOG_DEBUG, "\n"); |
| 157 | } |
| 158 | } |
| 159 | if (sd->effect_flag = get_bits1(gb)) |
| 160 | av_log(avctx, AV_LOG_DEBUG, "Effect flag set\n"); |
| 161 | |
| 162 | if (get_bits_count(gb) >= gb->size_in_bits + |
| 163 | (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE ? 64 : 0)) { |
| 164 | av_log(avctx, AV_LOG_ERROR, "Buffer overrun\n"); |
| 165 | return AVERROR_INVALIDDATA; |
| 166 | } |
| 167 | if (get_bits_count(gb) < gb->size_in_bits - 8) |
| 168 | av_log(avctx, AV_LOG_WARNING, "Buffer not fully read\n"); |
| 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | static void vc1_draw_sprites(VC1Context *v, SpriteData* sd) |
| 174 | { |
| 175 | int i, plane, row, sprite; |
| 176 | int sr_cache[2][2] = { { -1, -1 }, { -1, -1 } }; |
| 177 | uint8_t* src_h[2][2]; |
| 178 | int xoff[2], xadv[2], yoff[2], yadv[2], alpha; |
| 179 | int ysub[2]; |
| 180 | MpegEncContext *s = &v->s; |
| 181 | |
| 182 | for (i = 0; i <= v->two_sprites; i++) { |
| 183 | xoff[i] = av_clip(sd->coefs[i][2], 0, v->sprite_width-1 << 16); |
| 184 | xadv[i] = sd->coefs[i][0]; |
| 185 | if (xadv[i] != 1<<16 || (v->sprite_width << 16) - (v->output_width << 16) - xoff[i]) |
| 186 | xadv[i] = av_clip(xadv[i], 0, ((v->sprite_width<<16) - xoff[i] - 1) / v->output_width); |
| 187 | |
| 188 | yoff[i] = av_clip(sd->coefs[i][5], 0, v->sprite_height-1 << 16); |
| 189 | yadv[i] = av_clip(sd->coefs[i][4], 0, ((v->sprite_height << 16) - yoff[i]) / v->output_height); |
| 190 | } |
| 191 | alpha = av_clip(sd->coefs[1][6], 0, (1<<16) - 1); |
| 192 | |
| 193 | for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++) { |
| 194 | int width = v->output_width>>!!plane; |
| 195 | |
| 196 | for (row = 0; row < v->output_height>>!!plane; row++) { |
| 197 | uint8_t *dst = v->sprite_output_frame->data[plane] + |
| 198 | v->sprite_output_frame->linesize[plane] * row; |
| 199 | |
| 200 | for (sprite = 0; sprite <= v->two_sprites; sprite++) { |
| 201 | uint8_t *iplane = s->current_picture.f->data[plane]; |
| 202 | int iline = s->current_picture.f->linesize[plane]; |
| 203 | int ycoord = yoff[sprite] + yadv[sprite] * row; |
| 204 | int yline = ycoord >> 16; |
| 205 | int next_line; |
| 206 | ysub[sprite] = ycoord & 0xFFFF; |
| 207 | if (sprite) { |
| 208 | iplane = s->last_picture.f->data[plane]; |
| 209 | iline = s->last_picture.f->linesize[plane]; |
| 210 | } |
| 211 | next_line = FFMIN(yline + 1, (v->sprite_height >> !!plane) - 1) * iline; |
| 212 | if (!(xoff[sprite] & 0xFFFF) && xadv[sprite] == 1 << 16) { |
| 213 | src_h[sprite][0] = iplane + (xoff[sprite] >> 16) + yline * iline; |
| 214 | if (ysub[sprite]) |
| 215 | src_h[sprite][1] = iplane + (xoff[sprite] >> 16) + next_line; |
| 216 | } else { |
| 217 | if (sr_cache[sprite][0] != yline) { |
| 218 | if (sr_cache[sprite][1] == yline) { |
| 219 | FFSWAP(uint8_t*, v->sr_rows[sprite][0], v->sr_rows[sprite][1]); |
| 220 | FFSWAP(int, sr_cache[sprite][0], sr_cache[sprite][1]); |
| 221 | } else { |
| 222 | v->vc1dsp.sprite_h(v->sr_rows[sprite][0], iplane + yline * iline, xoff[sprite], xadv[sprite], width); |
| 223 | sr_cache[sprite][0] = yline; |
| 224 | } |
| 225 | } |
| 226 | if (ysub[sprite] && sr_cache[sprite][1] != yline + 1) { |
| 227 | v->vc1dsp.sprite_h(v->sr_rows[sprite][1], |
| 228 | iplane + next_line, xoff[sprite], |
| 229 | xadv[sprite], width); |
| 230 | sr_cache[sprite][1] = yline + 1; |
| 231 | } |
| 232 | src_h[sprite][0] = v->sr_rows[sprite][0]; |
| 233 | src_h[sprite][1] = v->sr_rows[sprite][1]; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | if (!v->two_sprites) { |
| 238 | if (ysub[0]) { |
| 239 | v->vc1dsp.sprite_v_single(dst, src_h[0][0], src_h[0][1], ysub[0], width); |
| 240 | } else { |
| 241 | memcpy(dst, src_h[0][0], width); |
| 242 | } |
| 243 | } else { |
| 244 | if (ysub[0] && ysub[1]) { |
| 245 | v->vc1dsp.sprite_v_double_twoscale(dst, src_h[0][0], src_h[0][1], ysub[0], |
| 246 | src_h[1][0], src_h[1][1], ysub[1], alpha, width); |
| 247 | } else if (ysub[0]) { |
| 248 | v->vc1dsp.sprite_v_double_onescale(dst, src_h[0][0], src_h[0][1], ysub[0], |
| 249 | src_h[1][0], alpha, width); |
| 250 | } else if (ysub[1]) { |
| 251 | v->vc1dsp.sprite_v_double_onescale(dst, src_h[1][0], src_h[1][1], ysub[1], |
| 252 | src_h[0][0], (1<<16)-1-alpha, width); |
| 253 | } else { |
| 254 | v->vc1dsp.sprite_v_double_noscale(dst, src_h[0][0], src_h[1][0], alpha, width); |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | if (!plane) { |
| 260 | for (i = 0; i <= v->two_sprites; i++) { |
| 261 | xoff[i] >>= 1; |
| 262 | yoff[i] >>= 1; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | |
| 270 | static int vc1_decode_sprites(VC1Context *v, GetBitContext* gb) |
| 271 | { |
| 272 | int ret; |
| 273 | MpegEncContext *s = &v->s; |
| 274 | AVCodecContext *avctx = s->avctx; |
| 275 | SpriteData sd; |
| 276 | |
| 277 | memset(&sd, 0, sizeof(sd)); |
| 278 | |
| 279 | ret = vc1_parse_sprites(v, gb, &sd); |
| 280 | if (ret < 0) |
| 281 | return ret; |
| 282 | |
| 283 | if (!s->current_picture.f || !s->current_picture.f->data[0]) { |
| 284 | av_log(avctx, AV_LOG_ERROR, "Got no sprites\n"); |
| 285 | return -1; |
| 286 | } |
| 287 | |
| 288 | if (v->two_sprites && (!s->last_picture_ptr || !s->last_picture.f->data[0])) { |
| 289 | av_log(avctx, AV_LOG_WARNING, "Need two sprites, only got one\n"); |
| 290 | v->two_sprites = 0; |
| 291 | } |
| 292 | |
| 293 | av_frame_unref(v->sprite_output_frame); |
| 294 | if ((ret = ff_get_buffer(avctx, v->sprite_output_frame, 0)) < 0) |
| 295 | return ret; |
| 296 | |
| 297 | vc1_draw_sprites(v, &sd); |
| 298 | |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | static void vc1_sprite_flush(AVCodecContext *avctx) |
| 303 | { |
| 304 | VC1Context *v = avctx->priv_data; |
| 305 | MpegEncContext *s = &v->s; |
| 306 | AVFrame *f = s->current_picture.f; |
| 307 | int plane, i; |
| 308 | |
| 309 | /* Windows Media Image codecs have a convergence interval of two keyframes. |
| 310 | Since we can't enforce it, clear to black the missing sprite. This is |
| 311 | wrong but it looks better than doing nothing. */ |
| 312 | |
| 313 | if (f && f->data[0]) |
| 314 | for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++) |
| 315 | for (i = 0; i < v->sprite_height>>!!plane; i++) |
| 316 | memset(f->data[plane] + i * f->linesize[plane], |
| 317 | plane ? 128 : 0, f->linesize[plane]); |
| 318 | } |
| 319 | |
| 320 | #endif |
| 321 | |
| 322 | av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v) |
| 323 | { |
| 324 | MpegEncContext *s = &v->s; |
| 325 | int i; |
| 326 | int mb_height = FFALIGN(s->mb_height, 2); |
| 327 | |
| 328 | /* Allocate mb bitplanes */ |
| 329 | v->mv_type_mb_plane = av_malloc (s->mb_stride * mb_height); |
| 330 | v->direct_mb_plane = av_malloc (s->mb_stride * mb_height); |
| 331 | v->forward_mb_plane = av_malloc (s->mb_stride * mb_height); |
| 332 | v->fieldtx_plane = av_mallocz(s->mb_stride * mb_height); |
| 333 | v->acpred_plane = av_malloc (s->mb_stride * mb_height); |
| 334 | v->over_flags_plane = av_malloc (s->mb_stride * mb_height); |
| 335 | |
| 336 | v->n_allocated_blks = s->mb_width + 2; |
| 337 | v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks); |
| 338 | v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride); |
| 339 | v->cbp = v->cbp_base + s->mb_stride; |
| 340 | v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride); |
| 341 | v->ttblk = v->ttblk_base + s->mb_stride; |
| 342 | v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride); |
| 343 | v->is_intra = v->is_intra_base + s->mb_stride; |
| 344 | v->luma_mv_base = av_mallocz(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride); |
| 345 | v->luma_mv = v->luma_mv_base + s->mb_stride; |
| 346 | |
| 347 | /* allocate block type info in that way so it could be used with s->block_index[] */ |
| 348 | v->mb_type_base = av_malloc(s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); |
| 349 | v->mb_type[0] = v->mb_type_base + s->b8_stride + 1; |
| 350 | v->mb_type[1] = v->mb_type_base + s->b8_stride * (mb_height * 2 + 1) + s->mb_stride + 1; |
| 351 | v->mb_type[2] = v->mb_type[1] + s->mb_stride * (mb_height + 1); |
| 352 | |
| 353 | /* allocate memory to store block level MV info */ |
| 354 | v->blk_mv_type_base = av_mallocz( s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); |
| 355 | v->blk_mv_type = v->blk_mv_type_base + s->b8_stride + 1; |
| 356 | v->mv_f_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2)); |
| 357 | v->mv_f[0] = v->mv_f_base + s->b8_stride + 1; |
| 358 | v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); |
| 359 | v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2)); |
| 360 | v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1; |
| 361 | v->mv_f_next[1] = v->mv_f_next[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); |
| 362 | |
| 363 | /* Init coded blocks info */ |
| 364 | if (v->profile == PROFILE_ADVANCED) { |
| 365 | // if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0) |
| 366 | // return -1; |
| 367 | // if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0) |
| 368 | // return -1; |
| 369 | } |
| 370 | |
| 371 | ff_intrax8_common_init(&v->x8,s); |
| 372 | |
| 373 | if (s->avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || s->avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
| 374 | for (i = 0; i < 4; i++) |
| 375 | if (!(v->sr_rows[i >> 1][i & 1] = av_malloc(v->output_width))) |
| 376 | return AVERROR(ENOMEM); |
| 377 | } |
| 378 | |
| 379 | if (!v->mv_type_mb_plane || !v->direct_mb_plane || !v->acpred_plane || !v->over_flags_plane || |
| 380 | !v->block || !v->cbp_base || !v->ttblk_base || !v->is_intra_base || !v->luma_mv_base || |
| 381 | !v->mb_type_base) { |
| 382 | av_freep(&v->mv_type_mb_plane); |
| 383 | av_freep(&v->direct_mb_plane); |
| 384 | av_freep(&v->acpred_plane); |
| 385 | av_freep(&v->over_flags_plane); |
| 386 | av_freep(&v->block); |
| 387 | av_freep(&v->cbp_base); |
| 388 | av_freep(&v->ttblk_base); |
| 389 | av_freep(&v->is_intra_base); |
| 390 | av_freep(&v->luma_mv_base); |
| 391 | av_freep(&v->mb_type_base); |
| 392 | return AVERROR(ENOMEM); |
| 393 | } |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | av_cold void ff_vc1_init_transposed_scantables(VC1Context *v) |
| 399 | { |
| 400 | int i; |
| 401 | for (i = 0; i < 64; i++) { |
| 402 | #define transpose(x) (((x) >> 3) | (((x) & 7) << 3)) |
| 403 | v->zz_8x8[0][i] = transpose(ff_wmv1_scantable[0][i]); |
| 404 | v->zz_8x8[1][i] = transpose(ff_wmv1_scantable[1][i]); |
| 405 | v->zz_8x8[2][i] = transpose(ff_wmv1_scantable[2][i]); |
| 406 | v->zz_8x8[3][i] = transpose(ff_wmv1_scantable[3][i]); |
| 407 | v->zzi_8x8[i] = transpose(ff_vc1_adv_interlaced_8x8_zz[i]); |
| 408 | } |
| 409 | v->left_blk_sh = 0; |
| 410 | v->top_blk_sh = 3; |
| 411 | } |
| 412 | |
| 413 | /** Initialize a VC1/WMV3 decoder |
| 414 | * @todo TODO: Handle VC-1 IDUs (Transport level?) |
| 415 | * @todo TODO: Decypher remaining bits in extra_data |
| 416 | */ |
| 417 | static av_cold int vc1_decode_init(AVCodecContext *avctx) |
| 418 | { |
| 419 | VC1Context *v = avctx->priv_data; |
| 420 | MpegEncContext *s = &v->s; |
| 421 | GetBitContext gb; |
| 422 | int ret; |
| 423 | |
| 424 | /* save the container output size for WMImage */ |
| 425 | v->output_width = avctx->width; |
| 426 | v->output_height = avctx->height; |
| 427 | |
| 428 | if (!avctx->extradata_size || !avctx->extradata) |
| 429 | return -1; |
| 430 | if (!(avctx->flags & CODEC_FLAG_GRAY)) |
| 431 | avctx->pix_fmt = ff_get_format(avctx, avctx->codec->pix_fmts); |
| 432 | else |
| 433 | avctx->pix_fmt = AV_PIX_FMT_GRAY8; |
| 434 | v->s.avctx = avctx; |
| 435 | |
| 436 | if ((ret = ff_vc1_init_common(v)) < 0) |
| 437 | return ret; |
| 438 | // ensure static VLC tables are initialized |
| 439 | if ((ret = ff_msmpeg4_decode_init(avctx)) < 0) |
| 440 | return ret; |
| 441 | if ((ret = ff_vc1_decode_init_alloc_tables(v)) < 0) |
| 442 | return ret; |
| 443 | // Hack to ensure the above functions will be called |
| 444 | // again once we know all necessary settings. |
| 445 | // That this is necessary might indicate a bug. |
| 446 | ff_vc1_decode_end(avctx); |
| 447 | |
| 448 | ff_blockdsp_init(&s->bdsp, avctx); |
| 449 | ff_h264chroma_init(&v->h264chroma, 8); |
| 450 | ff_qpeldsp_init(&s->qdsp); |
| 451 | |
| 452 | if (avctx->codec_id == AV_CODEC_ID_WMV3 || avctx->codec_id == AV_CODEC_ID_WMV3IMAGE) { |
| 453 | int count = 0; |
| 454 | |
| 455 | // looks like WMV3 has a sequence header stored in the extradata |
| 456 | // advanced sequence header may be before the first frame |
| 457 | // the last byte of the extradata is a version number, 1 for the |
| 458 | // samples we can decode |
| 459 | |
| 460 | init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8); |
| 461 | |
| 462 | if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) |
| 463 | return ret; |
| 464 | |
| 465 | count = avctx->extradata_size*8 - get_bits_count(&gb); |
| 466 | if (count > 0) { |
| 467 | av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n", |
| 468 | count, get_bits(&gb, count)); |
| 469 | } else if (count < 0) { |
| 470 | av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count); |
| 471 | } |
| 472 | } else { // VC1/WVC1/WVP2 |
| 473 | const uint8_t *start = avctx->extradata; |
| 474 | uint8_t *end = avctx->extradata + avctx->extradata_size; |
| 475 | const uint8_t *next; |
| 476 | int size, buf2_size; |
| 477 | uint8_t *buf2 = NULL; |
| 478 | int seq_initialized = 0, ep_initialized = 0; |
| 479 | |
| 480 | if (avctx->extradata_size < 16) { |
| 481 | av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size); |
| 482 | return -1; |
| 483 | } |
| 484 | |
| 485 | buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 486 | start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv |
| 487 | next = start; |
| 488 | for (; next < end; start = next) { |
| 489 | next = find_next_marker(start + 4, end); |
| 490 | size = next - start - 4; |
| 491 | if (size <= 0) |
| 492 | continue; |
| 493 | buf2_size = vc1_unescape_buffer(start + 4, size, buf2); |
| 494 | init_get_bits(&gb, buf2, buf2_size * 8); |
| 495 | switch (AV_RB32(start)) { |
| 496 | case VC1_CODE_SEQHDR: |
| 497 | if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) { |
| 498 | av_free(buf2); |
| 499 | return ret; |
| 500 | } |
| 501 | seq_initialized = 1; |
| 502 | break; |
| 503 | case VC1_CODE_ENTRYPOINT: |
| 504 | if ((ret = ff_vc1_decode_entry_point(avctx, v, &gb)) < 0) { |
| 505 | av_free(buf2); |
| 506 | return ret; |
| 507 | } |
| 508 | ep_initialized = 1; |
| 509 | break; |
| 510 | } |
| 511 | } |
| 512 | av_free(buf2); |
| 513 | if (!seq_initialized || !ep_initialized) { |
| 514 | av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n"); |
| 515 | return -1; |
| 516 | } |
| 517 | v->res_sprite = (avctx->codec_id == AV_CODEC_ID_VC1IMAGE); |
| 518 | } |
| 519 | |
| 520 | v->sprite_output_frame = av_frame_alloc(); |
| 521 | if (!v->sprite_output_frame) |
| 522 | return AVERROR(ENOMEM); |
| 523 | |
| 524 | avctx->profile = v->profile; |
| 525 | if (v->profile == PROFILE_ADVANCED) |
| 526 | avctx->level = v->level; |
| 527 | |
| 528 | avctx->has_b_frames = !!avctx->max_b_frames; |
| 529 | |
| 530 | if (v->color_prim == 1 || v->color_prim == 5 || v->color_prim == 6) |
| 531 | avctx->color_primaries = v->color_prim; |
| 532 | if (v->transfer_char == 1 || v->transfer_char == 7) |
| 533 | avctx->color_trc = v->transfer_char; |
| 534 | if (v->matrix_coef == 1 || v->matrix_coef == 6 || v->matrix_coef == 7) |
| 535 | avctx->colorspace = v->matrix_coef; |
| 536 | |
| 537 | s->mb_width = (avctx->coded_width + 15) >> 4; |
| 538 | s->mb_height = (avctx->coded_height + 15) >> 4; |
| 539 | |
| 540 | if (v->profile == PROFILE_ADVANCED || v->res_fasttx) { |
| 541 | ff_vc1_init_transposed_scantables(v); |
| 542 | } else { |
| 543 | memcpy(v->zz_8x8, ff_wmv1_scantable, 4*64); |
| 544 | v->left_blk_sh = 3; |
| 545 | v->top_blk_sh = 0; |
| 546 | } |
| 547 | |
| 548 | if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
| 549 | v->sprite_width = avctx->coded_width; |
| 550 | v->sprite_height = avctx->coded_height; |
| 551 | |
| 552 | avctx->coded_width = avctx->width = v->output_width; |
| 553 | avctx->coded_height = avctx->height = v->output_height; |
| 554 | |
| 555 | // prevent 16.16 overflows |
| 556 | if (v->sprite_width > 1 << 14 || |
| 557 | v->sprite_height > 1 << 14 || |
| 558 | v->output_width > 1 << 14 || |
| 559 | v->output_height > 1 << 14) return -1; |
| 560 | |
| 561 | if ((v->sprite_width&1) || (v->sprite_height&1)) { |
| 562 | avpriv_request_sample(avctx, "odd sprites support"); |
| 563 | return AVERROR_PATCHWELCOME; |
| 564 | } |
| 565 | } |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | /** Close a VC1/WMV3 decoder |
| 570 | * @warning Initial try at using MpegEncContext stuff |
| 571 | */ |
| 572 | av_cold int ff_vc1_decode_end(AVCodecContext *avctx) |
| 573 | { |
| 574 | VC1Context *v = avctx->priv_data; |
| 575 | int i; |
| 576 | |
| 577 | av_frame_free(&v->sprite_output_frame); |
| 578 | |
| 579 | for (i = 0; i < 4; i++) |
| 580 | av_freep(&v->sr_rows[i >> 1][i & 1]); |
| 581 | av_freep(&v->hrd_rate); |
| 582 | av_freep(&v->hrd_buffer); |
| 583 | ff_mpv_common_end(&v->s); |
| 584 | av_freep(&v->mv_type_mb_plane); |
| 585 | av_freep(&v->direct_mb_plane); |
| 586 | av_freep(&v->forward_mb_plane); |
| 587 | av_freep(&v->fieldtx_plane); |
| 588 | av_freep(&v->acpred_plane); |
| 589 | av_freep(&v->over_flags_plane); |
| 590 | av_freep(&v->mb_type_base); |
| 591 | av_freep(&v->blk_mv_type_base); |
| 592 | av_freep(&v->mv_f_base); |
| 593 | av_freep(&v->mv_f_next_base); |
| 594 | av_freep(&v->block); |
| 595 | av_freep(&v->cbp_base); |
| 596 | av_freep(&v->ttblk_base); |
| 597 | av_freep(&v->is_intra_base); // FIXME use v->mb_type[] |
| 598 | av_freep(&v->luma_mv_base); |
| 599 | ff_intrax8_common_end(&v->x8); |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | |
| 604 | /** Decode a VC1/WMV3 frame |
| 605 | * @todo TODO: Handle VC-1 IDUs (Transport level?) |
| 606 | */ |
| 607 | static int vc1_decode_frame(AVCodecContext *avctx, void *data, |
| 608 | int *got_frame, AVPacket *avpkt) |
| 609 | { |
| 610 | const uint8_t *buf = avpkt->data; |
| 611 | int buf_size = avpkt->size, n_slices = 0, i, ret; |
| 612 | VC1Context *v = avctx->priv_data; |
| 613 | MpegEncContext *s = &v->s; |
| 614 | AVFrame *pict = data; |
| 615 | uint8_t *buf2 = NULL; |
| 616 | const uint8_t *buf_start = buf, *buf_start_second_field = NULL; |
| 617 | int mb_height, n_slices1=-1; |
| 618 | struct { |
| 619 | uint8_t *buf; |
| 620 | GetBitContext gb; |
| 621 | int mby_start; |
| 622 | } *slices = NULL, *tmp; |
| 623 | |
| 624 | v->second_field = 0; |
| 625 | |
| 626 | if(s->flags & CODEC_FLAG_LOW_DELAY) |
| 627 | s->low_delay = 1; |
| 628 | |
| 629 | /* no supplementary picture */ |
| 630 | if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) { |
| 631 | /* special case for last picture */ |
| 632 | if (s->low_delay == 0 && s->next_picture_ptr) { |
| 633 | if ((ret = av_frame_ref(pict, s->next_picture_ptr->f)) < 0) |
| 634 | return ret; |
| 635 | s->next_picture_ptr = NULL; |
| 636 | |
| 637 | *got_frame = 1; |
| 638 | } |
| 639 | |
| 640 | return buf_size; |
| 641 | } |
| 642 | |
| 643 | if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) { |
| 644 | if (v->profile < PROFILE_ADVANCED) |
| 645 | avctx->pix_fmt = AV_PIX_FMT_VDPAU_WMV3; |
| 646 | else |
| 647 | avctx->pix_fmt = AV_PIX_FMT_VDPAU_VC1; |
| 648 | } |
| 649 | |
| 650 | //for advanced profile we may need to parse and unescape data |
| 651 | if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
| 652 | int buf_size2 = 0; |
| 653 | buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 654 | if (!buf2) |
| 655 | return AVERROR(ENOMEM); |
| 656 | |
| 657 | if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */ |
| 658 | const uint8_t *start, *end, *next; |
| 659 | int size; |
| 660 | |
| 661 | next = buf; |
| 662 | for (start = buf, end = buf + buf_size; next < end; start = next) { |
| 663 | next = find_next_marker(start + 4, end); |
| 664 | size = next - start - 4; |
| 665 | if (size <= 0) continue; |
| 666 | switch (AV_RB32(start)) { |
| 667 | case VC1_CODE_FRAME: |
| 668 | if (avctx->hwaccel || |
| 669 | s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
| 670 | buf_start = start; |
| 671 | buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); |
| 672 | break; |
| 673 | case VC1_CODE_FIELD: { |
| 674 | int buf_size3; |
| 675 | if (avctx->hwaccel || |
| 676 | s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
| 677 | buf_start_second_field = start; |
| 678 | tmp = av_realloc_array(slices, sizeof(*slices), (n_slices+1)); |
| 679 | if (!tmp) |
| 680 | goto err; |
| 681 | slices = tmp; |
| 682 | slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 683 | if (!slices[n_slices].buf) |
| 684 | goto err; |
| 685 | buf_size3 = vc1_unescape_buffer(start + 4, size, |
| 686 | slices[n_slices].buf); |
| 687 | init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
| 688 | buf_size3 << 3); |
| 689 | /* assuming that the field marker is at the exact middle, |
| 690 | hope it's correct */ |
| 691 | slices[n_slices].mby_start = s->mb_height + 1 >> 1; |
| 692 | n_slices1 = n_slices - 1; // index of the last slice of the first field |
| 693 | n_slices++; |
| 694 | break; |
| 695 | } |
| 696 | case VC1_CODE_ENTRYPOINT: /* it should be before frame data */ |
| 697 | buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); |
| 698 | init_get_bits(&s->gb, buf2, buf_size2 * 8); |
| 699 | ff_vc1_decode_entry_point(avctx, v, &s->gb); |
| 700 | break; |
| 701 | case VC1_CODE_SLICE: { |
| 702 | int buf_size3; |
| 703 | tmp = av_realloc_array(slices, sizeof(*slices), (n_slices+1)); |
| 704 | if (!tmp) |
| 705 | goto err; |
| 706 | slices = tmp; |
| 707 | slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 708 | if (!slices[n_slices].buf) |
| 709 | goto err; |
| 710 | buf_size3 = vc1_unescape_buffer(start + 4, size, |
| 711 | slices[n_slices].buf); |
| 712 | init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
| 713 | buf_size3 << 3); |
| 714 | slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9); |
| 715 | n_slices++; |
| 716 | break; |
| 717 | } |
| 718 | } |
| 719 | } |
| 720 | } else if (v->interlace && ((buf[0] & 0xC0) == 0xC0)) { /* WVC1 interlaced stores both fields divided by marker */ |
| 721 | const uint8_t *divider; |
| 722 | int buf_size3; |
| 723 | |
| 724 | divider = find_next_marker(buf, buf + buf_size); |
| 725 | if ((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD) { |
| 726 | av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n"); |
| 727 | goto err; |
| 728 | } else { // found field marker, unescape second field |
| 729 | if (avctx->hwaccel || |
| 730 | s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
| 731 | buf_start_second_field = divider; |
| 732 | tmp = av_realloc_array(slices, sizeof(*slices), (n_slices+1)); |
| 733 | if (!tmp) |
| 734 | goto err; |
| 735 | slices = tmp; |
| 736 | slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 737 | if (!slices[n_slices].buf) |
| 738 | goto err; |
| 739 | buf_size3 = vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf); |
| 740 | init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
| 741 | buf_size3 << 3); |
| 742 | slices[n_slices].mby_start = s->mb_height + 1 >> 1; |
| 743 | n_slices1 = n_slices - 1; |
| 744 | n_slices++; |
| 745 | } |
| 746 | buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2); |
| 747 | } else { |
| 748 | buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2); |
| 749 | } |
| 750 | init_get_bits(&s->gb, buf2, buf_size2*8); |
| 751 | } else |
| 752 | init_get_bits(&s->gb, buf, buf_size*8); |
| 753 | |
| 754 | if (v->res_sprite) { |
| 755 | v->new_sprite = !get_bits1(&s->gb); |
| 756 | v->two_sprites = get_bits1(&s->gb); |
| 757 | /* res_sprite means a Windows Media Image stream, AV_CODEC_ID_*IMAGE means |
| 758 | we're using the sprite compositor. These are intentionally kept separate |
| 759 | so you can get the raw sprites by using the wmv3 decoder for WMVP or |
| 760 | the vc1 one for WVP2 */ |
| 761 | if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
| 762 | if (v->new_sprite) { |
| 763 | // switch AVCodecContext parameters to those of the sprites |
| 764 | avctx->width = avctx->coded_width = v->sprite_width; |
| 765 | avctx->height = avctx->coded_height = v->sprite_height; |
| 766 | } else { |
| 767 | goto image; |
| 768 | } |
| 769 | } |
| 770 | } |
| 771 | |
| 772 | if (s->context_initialized && |
| 773 | (s->width != avctx->coded_width || |
| 774 | s->height != avctx->coded_height)) { |
| 775 | ff_vc1_decode_end(avctx); |
| 776 | } |
| 777 | |
| 778 | if (!s->context_initialized) { |
| 779 | if (ff_msmpeg4_decode_init(avctx) < 0) |
| 780 | goto err; |
| 781 | if (ff_vc1_decode_init_alloc_tables(v) < 0) { |
| 782 | ff_mpv_common_end(s); |
| 783 | goto err; |
| 784 | } |
| 785 | |
| 786 | s->low_delay = !avctx->has_b_frames || v->res_sprite; |
| 787 | |
| 788 | if (v->profile == PROFILE_ADVANCED) { |
| 789 | if(avctx->coded_width<=1 || avctx->coded_height<=1) |
| 790 | goto err; |
| 791 | s->h_edge_pos = avctx->coded_width; |
| 792 | s->v_edge_pos = avctx->coded_height; |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | // do parse frame header |
| 797 | v->pic_header_flag = 0; |
| 798 | v->first_pic_header_flag = 1; |
| 799 | if (v->profile < PROFILE_ADVANCED) { |
| 800 | if (ff_vc1_parse_frame_header(v, &s->gb) < 0) { |
| 801 | goto err; |
| 802 | } |
| 803 | } else { |
| 804 | if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) { |
| 805 | goto err; |
| 806 | } |
| 807 | } |
| 808 | v->first_pic_header_flag = 0; |
| 809 | |
| 810 | if (avctx->debug & FF_DEBUG_PICT_INFO) |
| 811 | av_log(v->s.avctx, AV_LOG_DEBUG, "pict_type: %c\n", av_get_picture_type_char(s->pict_type)); |
| 812 | |
| 813 | if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) |
| 814 | && s->pict_type != AV_PICTURE_TYPE_I) { |
| 815 | av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected I-frame\n"); |
| 816 | goto err; |
| 817 | } |
| 818 | |
| 819 | if ((s->mb_height >> v->field_mode) == 0) { |
| 820 | av_log(v->s.avctx, AV_LOG_ERROR, "image too short\n"); |
| 821 | goto err; |
| 822 | } |
| 823 | |
| 824 | // for skipping the frame |
| 825 | s->current_picture.f->pict_type = s->pict_type; |
| 826 | s->current_picture.f->key_frame = s->pict_type == AV_PICTURE_TYPE_I; |
| 827 | |
| 828 | /* skip B-frames if we don't have reference frames */ |
| 829 | if (!s->last_picture_ptr && (s->pict_type == AV_PICTURE_TYPE_B || s->droppable)) { |
| 830 | av_log(v->s.avctx, AV_LOG_DEBUG, "Skipping B frame without reference frames\n"); |
| 831 | goto end; |
| 832 | } |
| 833 | if ((avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) || |
| 834 | (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) || |
| 835 | avctx->skip_frame >= AVDISCARD_ALL) { |
| 836 | goto end; |
| 837 | } |
| 838 | |
| 839 | if (s->next_p_frame_damaged) { |
| 840 | if (s->pict_type == AV_PICTURE_TYPE_B) |
| 841 | goto end; |
| 842 | else |
| 843 | s->next_p_frame_damaged = 0; |
| 844 | } |
| 845 | |
| 846 | if (ff_mpv_frame_start(s, avctx) < 0) { |
| 847 | goto err; |
| 848 | } |
| 849 | |
| 850 | v->s.current_picture_ptr->field_picture = v->field_mode; |
| 851 | v->s.current_picture_ptr->f->interlaced_frame = (v->fcm != PROGRESSIVE); |
| 852 | v->s.current_picture_ptr->f->top_field_first = v->tff; |
| 853 | |
| 854 | // process pulldown flags |
| 855 | s->current_picture_ptr->f->repeat_pict = 0; |
| 856 | // Pulldown flags are only valid when 'broadcast' has been set. |
| 857 | // So ticks_per_frame will be 2 |
| 858 | if (v->rff) { |
| 859 | // repeat field |
| 860 | s->current_picture_ptr->f->repeat_pict = 1; |
| 861 | } else if (v->rptfrm) { |
| 862 | // repeat frames |
| 863 | s->current_picture_ptr->f->repeat_pict = v->rptfrm * 2; |
| 864 | } |
| 865 | |
| 866 | s->me.qpel_put = s->qdsp.put_qpel_pixels_tab; |
| 867 | s->me.qpel_avg = s->qdsp.avg_qpel_pixels_tab; |
| 868 | |
| 869 | if ((CONFIG_VC1_VDPAU_DECODER) |
| 870 | &&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) { |
| 871 | if (v->field_mode && buf_start_second_field) { |
| 872 | ff_vdpau_vc1_decode_picture(s, buf_start, buf_start_second_field - buf_start); |
| 873 | ff_vdpau_vc1_decode_picture(s, buf_start_second_field, (buf + buf_size) - buf_start_second_field); |
| 874 | } else { |
| 875 | ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start); |
| 876 | } |
| 877 | } else if (avctx->hwaccel) { |
| 878 | if (v->field_mode && buf_start_second_field) { |
| 879 | // decode first field |
| 880 | s->picture_structure = PICT_BOTTOM_FIELD - v->tff; |
| 881 | if (avctx->hwaccel->start_frame(avctx, buf_start, buf_start_second_field - buf_start) < 0) |
| 882 | goto err; |
| 883 | if (avctx->hwaccel->decode_slice(avctx, buf_start, buf_start_second_field - buf_start) < 0) |
| 884 | goto err; |
| 885 | if (avctx->hwaccel->end_frame(avctx) < 0) |
| 886 | goto err; |
| 887 | |
| 888 | // decode second field |
| 889 | s->gb = slices[n_slices1 + 1].gb; |
| 890 | s->picture_structure = PICT_TOP_FIELD + v->tff; |
| 891 | v->second_field = 1; |
| 892 | v->pic_header_flag = 0; |
| 893 | if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) { |
| 894 | av_log(avctx, AV_LOG_ERROR, "parsing header for second field failed"); |
| 895 | goto err; |
| 896 | } |
| 897 | v->s.current_picture_ptr->f->pict_type = v->s.pict_type; |
| 898 | |
| 899 | if (avctx->hwaccel->start_frame(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0) |
| 900 | goto err; |
| 901 | if (avctx->hwaccel->decode_slice(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0) |
| 902 | goto err; |
| 903 | if (avctx->hwaccel->end_frame(avctx) < 0) |
| 904 | goto err; |
| 905 | } else { |
| 906 | s->picture_structure = PICT_FRAME; |
| 907 | if (avctx->hwaccel->start_frame(avctx, buf_start, (buf + buf_size) - buf_start) < 0) |
| 908 | goto err; |
| 909 | if (avctx->hwaccel->decode_slice(avctx, buf_start, (buf + buf_size) - buf_start) < 0) |
| 910 | goto err; |
| 911 | if (avctx->hwaccel->end_frame(avctx) < 0) |
| 912 | goto err; |
| 913 | } |
| 914 | } else { |
| 915 | int header_ret = 0; |
| 916 | |
| 917 | ff_mpeg_er_frame_start(s); |
| 918 | |
| 919 | v->bits = buf_size * 8; |
| 920 | v->end_mb_x = s->mb_width; |
| 921 | if (v->field_mode) { |
| 922 | s->current_picture.f->linesize[0] <<= 1; |
| 923 | s->current_picture.f->linesize[1] <<= 1; |
| 924 | s->current_picture.f->linesize[2] <<= 1; |
| 925 | s->linesize <<= 1; |
| 926 | s->uvlinesize <<= 1; |
| 927 | } |
| 928 | mb_height = s->mb_height >> v->field_mode; |
| 929 | |
| 930 | av_assert0 (mb_height > 0); |
| 931 | |
| 932 | for (i = 0; i <= n_slices; i++) { |
| 933 | if (i > 0 && slices[i - 1].mby_start >= mb_height) { |
| 934 | if (v->field_mode <= 0) { |
| 935 | av_log(v->s.avctx, AV_LOG_ERROR, "Slice %d starts beyond " |
| 936 | "picture boundary (%d >= %d)\n", i, |
| 937 | slices[i - 1].mby_start, mb_height); |
| 938 | continue; |
| 939 | } |
| 940 | v->second_field = 1; |
| 941 | av_assert0((s->mb_height & 1) == 0); |
| 942 | v->blocks_off = s->b8_stride * (s->mb_height&~1); |
| 943 | v->mb_off = s->mb_stride * s->mb_height >> 1; |
| 944 | } else { |
| 945 | v->second_field = 0; |
| 946 | v->blocks_off = 0; |
| 947 | v->mb_off = 0; |
| 948 | } |
| 949 | if (i) { |
| 950 | v->pic_header_flag = 0; |
| 951 | if (v->field_mode && i == n_slices1 + 2) { |
| 952 | if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) { |
| 953 | av_log(v->s.avctx, AV_LOG_ERROR, "Field header damaged\n"); |
| 954 | if (avctx->err_recognition & AV_EF_EXPLODE) |
| 955 | goto err; |
| 956 | continue; |
| 957 | } |
| 958 | } else if (get_bits1(&s->gb)) { |
| 959 | v->pic_header_flag = 1; |
| 960 | if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) { |
| 961 | av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n"); |
| 962 | if (avctx->err_recognition & AV_EF_EXPLODE) |
| 963 | goto err; |
| 964 | continue; |
| 965 | } |
| 966 | } |
| 967 | } |
| 968 | if (header_ret < 0) |
| 969 | continue; |
| 970 | s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start % mb_height); |
| 971 | if (!v->field_mode || v->second_field) |
| 972 | s->end_mb_y = (i == n_slices ) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height); |
| 973 | else { |
| 974 | if (i >= n_slices) { |
| 975 | av_log(v->s.avctx, AV_LOG_ERROR, "first field slice count too large\n"); |
| 976 | continue; |
| 977 | } |
| 978 | s->end_mb_y = (i <= n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height); |
| 979 | } |
| 980 | if (s->end_mb_y <= s->start_mb_y) { |
| 981 | av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y); |
| 982 | continue; |
| 983 | } |
| 984 | if (!v->p_frame_skipped && s->pict_type != AV_PICTURE_TYPE_I && !v->cbpcy_vlc) { |
| 985 | av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n"); |
| 986 | continue; |
| 987 | } |
| 988 | ff_vc1_decode_blocks(v); |
| 989 | if (i != n_slices) |
| 990 | s->gb = slices[i].gb; |
| 991 | } |
| 992 | if (v->field_mode) { |
| 993 | v->second_field = 0; |
| 994 | s->current_picture.f->linesize[0] >>= 1; |
| 995 | s->current_picture.f->linesize[1] >>= 1; |
| 996 | s->current_picture.f->linesize[2] >>= 1; |
| 997 | s->linesize >>= 1; |
| 998 | s->uvlinesize >>= 1; |
| 999 | if (v->s.pict_type != AV_PICTURE_TYPE_BI && v->s.pict_type != AV_PICTURE_TYPE_B) { |
| 1000 | FFSWAP(uint8_t *, v->mv_f_next[0], v->mv_f[0]); |
| 1001 | FFSWAP(uint8_t *, v->mv_f_next[1], v->mv_f[1]); |
| 1002 | } |
| 1003 | } |
| 1004 | av_dlog(s->avctx, "Consumed %i/%i bits\n", |
| 1005 | get_bits_count(&s->gb), s->gb.size_in_bits); |
| 1006 | // if (get_bits_count(&s->gb) > buf_size * 8) |
| 1007 | // return -1; |
| 1008 | if(s->er.error_occurred && s->pict_type == AV_PICTURE_TYPE_B) |
| 1009 | goto err; |
| 1010 | if (!v->field_mode) |
| 1011 | ff_er_frame_end(&s->er); |
| 1012 | } |
| 1013 | |
| 1014 | ff_mpv_frame_end(s); |
| 1015 | |
| 1016 | if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
| 1017 | image: |
| 1018 | avctx->width = avctx->coded_width = v->output_width; |
| 1019 | avctx->height = avctx->coded_height = v->output_height; |
| 1020 | if (avctx->skip_frame >= AVDISCARD_NONREF) |
| 1021 | goto end; |
| 1022 | #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER |
| 1023 | if (vc1_decode_sprites(v, &s->gb)) |
| 1024 | goto err; |
| 1025 | #endif |
| 1026 | if ((ret = av_frame_ref(pict, v->sprite_output_frame)) < 0) |
| 1027 | goto err; |
| 1028 | *got_frame = 1; |
| 1029 | } else { |
| 1030 | if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) { |
| 1031 | if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0) |
| 1032 | goto err; |
| 1033 | ff_print_debug_info(s, s->current_picture_ptr, pict); |
| 1034 | *got_frame = 1; |
| 1035 | } else if (s->last_picture_ptr) { |
| 1036 | if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0) |
| 1037 | goto err; |
| 1038 | ff_print_debug_info(s, s->last_picture_ptr, pict); |
| 1039 | *got_frame = 1; |
| 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | end: |
| 1044 | av_free(buf2); |
| 1045 | for (i = 0; i < n_slices; i++) |
| 1046 | av_free(slices[i].buf); |
| 1047 | av_free(slices); |
| 1048 | return buf_size; |
| 1049 | |
| 1050 | err: |
| 1051 | av_free(buf2); |
| 1052 | for (i = 0; i < n_slices; i++) |
| 1053 | av_free(slices[i].buf); |
| 1054 | av_free(slices); |
| 1055 | return -1; |
| 1056 | } |
| 1057 | |
| 1058 | |
| 1059 | static const AVProfile profiles[] = { |
| 1060 | { FF_PROFILE_VC1_SIMPLE, "Simple" }, |
| 1061 | { FF_PROFILE_VC1_MAIN, "Main" }, |
| 1062 | { FF_PROFILE_VC1_COMPLEX, "Complex" }, |
| 1063 | { FF_PROFILE_VC1_ADVANCED, "Advanced" }, |
| 1064 | { FF_PROFILE_UNKNOWN }, |
| 1065 | }; |
| 1066 | |
| 1067 | static const enum AVPixelFormat vc1_hwaccel_pixfmt_list_420[] = { |
| 1068 | #if CONFIG_VC1_DXVA2_HWACCEL |
| 1069 | AV_PIX_FMT_DXVA2_VLD, |
| 1070 | #endif |
| 1071 | #if CONFIG_VC1_VAAPI_HWACCEL |
| 1072 | AV_PIX_FMT_VAAPI_VLD, |
| 1073 | #endif |
| 1074 | #if CONFIG_VC1_VDPAU_HWACCEL |
| 1075 | AV_PIX_FMT_VDPAU, |
| 1076 | #endif |
| 1077 | AV_PIX_FMT_YUV420P, |
| 1078 | AV_PIX_FMT_NONE |
| 1079 | }; |
| 1080 | |
| 1081 | AVCodec ff_vc1_decoder = { |
| 1082 | .name = "vc1", |
| 1083 | .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"), |
| 1084 | .type = AVMEDIA_TYPE_VIDEO, |
| 1085 | .id = AV_CODEC_ID_VC1, |
| 1086 | .priv_data_size = sizeof(VC1Context), |
| 1087 | .init = vc1_decode_init, |
| 1088 | .close = ff_vc1_decode_end, |
| 1089 | .decode = vc1_decode_frame, |
| 1090 | .flush = ff_mpeg_flush, |
| 1091 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY, |
| 1092 | .pix_fmts = vc1_hwaccel_pixfmt_list_420, |
| 1093 | .profiles = NULL_IF_CONFIG_SMALL(profiles) |
| 1094 | }; |
| 1095 | |
| 1096 | #if CONFIG_WMV3_DECODER |
| 1097 | AVCodec ff_wmv3_decoder = { |
| 1098 | .name = "wmv3", |
| 1099 | .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"), |
| 1100 | .type = AVMEDIA_TYPE_VIDEO, |
| 1101 | .id = AV_CODEC_ID_WMV3, |
| 1102 | .priv_data_size = sizeof(VC1Context), |
| 1103 | .init = vc1_decode_init, |
| 1104 | .close = ff_vc1_decode_end, |
| 1105 | .decode = vc1_decode_frame, |
| 1106 | .flush = ff_mpeg_flush, |
| 1107 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY, |
| 1108 | .pix_fmts = vc1_hwaccel_pixfmt_list_420, |
| 1109 | .profiles = NULL_IF_CONFIG_SMALL(profiles) |
| 1110 | }; |
| 1111 | #endif |
| 1112 | |
| 1113 | #if CONFIG_WMV3_VDPAU_DECODER |
| 1114 | AVCodec ff_wmv3_vdpau_decoder = { |
| 1115 | .name = "wmv3_vdpau", |
| 1116 | .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 VDPAU"), |
| 1117 | .type = AVMEDIA_TYPE_VIDEO, |
| 1118 | .id = AV_CODEC_ID_WMV3, |
| 1119 | .priv_data_size = sizeof(VC1Context), |
| 1120 | .init = vc1_decode_init, |
| 1121 | .close = ff_vc1_decode_end, |
| 1122 | .decode = vc1_decode_frame, |
| 1123 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
| 1124 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU_WMV3, AV_PIX_FMT_NONE }, |
| 1125 | .profiles = NULL_IF_CONFIG_SMALL(profiles) |
| 1126 | }; |
| 1127 | #endif |
| 1128 | |
| 1129 | #if CONFIG_VC1_VDPAU_DECODER |
| 1130 | AVCodec ff_vc1_vdpau_decoder = { |
| 1131 | .name = "vc1_vdpau", |
| 1132 | .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 VDPAU"), |
| 1133 | .type = AVMEDIA_TYPE_VIDEO, |
| 1134 | .id = AV_CODEC_ID_VC1, |
| 1135 | .priv_data_size = sizeof(VC1Context), |
| 1136 | .init = vc1_decode_init, |
| 1137 | .close = ff_vc1_decode_end, |
| 1138 | .decode = vc1_decode_frame, |
| 1139 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
| 1140 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU_VC1, AV_PIX_FMT_NONE }, |
| 1141 | .profiles = NULL_IF_CONFIG_SMALL(profiles) |
| 1142 | }; |
| 1143 | #endif |
| 1144 | |
| 1145 | #if CONFIG_WMV3IMAGE_DECODER |
| 1146 | AVCodec ff_wmv3image_decoder = { |
| 1147 | .name = "wmv3image", |
| 1148 | .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image"), |
| 1149 | .type = AVMEDIA_TYPE_VIDEO, |
| 1150 | .id = AV_CODEC_ID_WMV3IMAGE, |
| 1151 | .priv_data_size = sizeof(VC1Context), |
| 1152 | .init = vc1_decode_init, |
| 1153 | .close = ff_vc1_decode_end, |
| 1154 | .decode = vc1_decode_frame, |
| 1155 | .capabilities = CODEC_CAP_DR1, |
| 1156 | .flush = vc1_sprite_flush, |
| 1157 | .pix_fmts = (const enum AVPixelFormat[]) { |
| 1158 | AV_PIX_FMT_YUV420P, |
| 1159 | AV_PIX_FMT_NONE |
| 1160 | }, |
| 1161 | }; |
| 1162 | #endif |
| 1163 | |
| 1164 | #if CONFIG_VC1IMAGE_DECODER |
| 1165 | AVCodec ff_vc1image_decoder = { |
| 1166 | .name = "vc1image", |
| 1167 | .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image v2"), |
| 1168 | .type = AVMEDIA_TYPE_VIDEO, |
| 1169 | .id = AV_CODEC_ID_VC1IMAGE, |
| 1170 | .priv_data_size = sizeof(VC1Context), |
| 1171 | .init = vc1_decode_init, |
| 1172 | .close = ff_vc1_decode_end, |
| 1173 | .decode = vc1_decode_frame, |
| 1174 | .capabilities = CODEC_CAP_DR1, |
| 1175 | .flush = vc1_sprite_flush, |
| 1176 | .pix_fmts = (const enum AVPixelFormat[]) { |
| 1177 | AV_PIX_FMT_YUV420P, |
| 1178 | AV_PIX_FMT_NONE |
| 1179 | }, |
| 1180 | }; |
| 1181 | #endif |