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1 | /* | ||
2 | * Copyright (C) 2007 Marco Gerards <marco@gnu.org> | ||
3 | * Copyright (C) 2009 David Conrad | ||
4 | * Copyright (C) 2011 Jordi Ortiz | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @file | ||
25 | * Dirac Decoder | ||
26 | * @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com> | ||
27 | */ | ||
28 | |||
29 | #include "libavutil/mem.h" | ||
30 | #include "libavutil/mem_internal.h" | ||
31 | #include "libavutil/pixdesc.h" | ||
32 | #include "libavutil/thread.h" | ||
33 | #include "avcodec.h" | ||
34 | #include "get_bits.h" | ||
35 | #include "codec_internal.h" | ||
36 | #include "decode.h" | ||
37 | #include "golomb.h" | ||
38 | #include "dirac_arith.h" | ||
39 | #include "dirac_vlc.h" | ||
40 | #include "mpegvideoencdsp.h" | ||
41 | #include "dirac_dwt.h" | ||
42 | #include "dirac.h" | ||
43 | #include "diractab.h" | ||
44 | #include "diracdsp.h" | ||
45 | #include "videodsp.h" | ||
46 | |||
47 | #define EDGE_WIDTH 16 | ||
48 | |||
49 | /** | ||
50 | * The spec limits this to 3 for frame coding, but in practice can be as high as 6 | ||
51 | */ | ||
52 | #define MAX_REFERENCE_FRAMES 8 | ||
53 | #define MAX_DELAY 5 /* limit for main profile for frame coding (TODO: field coding) */ | ||
54 | #define MAX_FRAMES (MAX_REFERENCE_FRAMES + MAX_DELAY + 1) | ||
55 | #define MAX_QUANT 255 /* max quant for VC-2 */ | ||
56 | #define MAX_BLOCKSIZE 32 /* maximum xblen/yblen we support */ | ||
57 | |||
58 | /** | ||
59 | * DiracBlock->ref flags, if set then the block does MC from the given ref | ||
60 | */ | ||
61 | #define DIRAC_REF_MASK_REF1 1 | ||
62 | #define DIRAC_REF_MASK_REF2 2 | ||
63 | #define DIRAC_REF_MASK_GLOBAL 4 | ||
64 | |||
65 | /** | ||
66 | * Value of Picture.reference when Picture is not a reference picture, but | ||
67 | * is held for delayed output. | ||
68 | */ | ||
69 | #define DELAYED_PIC_REF 4 | ||
70 | |||
71 | #define CALC_PADDING(size, depth) \ | ||
72 | (((size + (1 << depth) - 1) >> depth) << depth) | ||
73 | |||
74 | #define DIVRNDUP(a, b) (((a) + (b) - 1) / (b)) | ||
75 | |||
76 | typedef struct { | ||
77 | AVFrame *avframe; | ||
78 | int interpolated[3]; /* 1 if hpel[] is valid */ | ||
79 | uint8_t *hpel[3][4]; | ||
80 | uint8_t *hpel_base[3][4]; | ||
81 | int reference; | ||
82 | unsigned picture_number; | ||
83 | } DiracFrame; | ||
84 | |||
85 | typedef struct { | ||
86 | union { | ||
87 | int16_t mv[2][2]; | ||
88 | int16_t dc[3]; | ||
89 | } u; /* anonymous unions aren't in C99 :( */ | ||
90 | uint8_t ref; | ||
91 | } DiracBlock; | ||
92 | |||
93 | typedef struct SubBand { | ||
94 | int level; | ||
95 | int orientation; | ||
96 | int stride; /* in bytes */ | ||
97 | int width; | ||
98 | int height; | ||
99 | int pshift; | ||
100 | int quant; | ||
101 | uint8_t *ibuf; | ||
102 | struct SubBand *parent; | ||
103 | |||
104 | /* for low delay */ | ||
105 | unsigned length; | ||
106 | const uint8_t *coeff_data; | ||
107 | } SubBand; | ||
108 | |||
109 | typedef struct Plane { | ||
110 | DWTPlane idwt; | ||
111 | |||
112 | int width; | ||
113 | int height; | ||
114 | ptrdiff_t stride; | ||
115 | |||
116 | /* block length */ | ||
117 | uint8_t xblen; | ||
118 | uint8_t yblen; | ||
119 | /* block separation (block n+1 starts after this many pixels in block n) */ | ||
120 | uint8_t xbsep; | ||
121 | uint8_t ybsep; | ||
122 | /* amount of overspill on each edge (half of the overlap between blocks) */ | ||
123 | uint8_t xoffset; | ||
124 | uint8_t yoffset; | ||
125 | |||
126 | SubBand band[MAX_DWT_LEVELS][4]; | ||
127 | } Plane; | ||
128 | |||
129 | /* Used by Low Delay and High Quality profiles */ | ||
130 | typedef struct DiracSlice { | ||
131 | GetBitContext gb; | ||
132 | int slice_x; | ||
133 | int slice_y; | ||
134 | int bytes; | ||
135 | } DiracSlice; | ||
136 | |||
137 | typedef struct DiracContext { | ||
138 | AVCodecContext *avctx; | ||
139 | MpegvideoEncDSPContext mpvencdsp; | ||
140 | VideoDSPContext vdsp; | ||
141 | DiracDSPContext diracdsp; | ||
142 | DiracVersionInfo version; | ||
143 | GetBitContext gb; | ||
144 | AVDiracSeqHeader seq; | ||
145 | int seen_sequence_header; | ||
146 | int64_t frame_number; /* number of the next frame to display */ | ||
147 | Plane plane[3]; | ||
148 | int chroma_x_shift; | ||
149 | int chroma_y_shift; | ||
150 | |||
151 | int bit_depth; /* bit depth */ | ||
152 | int pshift; /* pixel shift = bit_depth > 8 */ | ||
153 | |||
154 | int zero_res; /* zero residue flag */ | ||
155 | int is_arith; /* whether coeffs use arith or golomb coding */ | ||
156 | int core_syntax; /* use core syntax only */ | ||
157 | int low_delay; /* use the low delay syntax */ | ||
158 | int hq_picture; /* high quality picture, enables low_delay */ | ||
159 | int ld_picture; /* use low delay picture, turns on low_delay */ | ||
160 | int dc_prediction; /* has dc prediction */ | ||
161 | int globalmc_flag; /* use global motion compensation */ | ||
162 | int num_refs; /* number of reference pictures */ | ||
163 | |||
164 | /* wavelet decoding */ | ||
165 | unsigned wavelet_depth; /* depth of the IDWT */ | ||
166 | unsigned wavelet_idx; | ||
167 | |||
168 | /** | ||
169 | * schroedinger older than 1.0.8 doesn't store | ||
170 | * quant delta if only one codebook exists in a band | ||
171 | */ | ||
172 | unsigned old_delta_quant; | ||
173 | unsigned codeblock_mode; | ||
174 | |||
175 | unsigned num_x; /* number of horizontal slices */ | ||
176 | unsigned num_y; /* number of vertical slices */ | ||
177 | |||
178 | uint8_t *thread_buf; /* Per-thread buffer for coefficient storage */ | ||
179 | int threads_num_buf; /* Current # of buffers allocated */ | ||
180 | int thread_buf_size; /* Each thread has a buffer this size */ | ||
181 | |||
182 | DiracSlice *slice_params_buf; | ||
183 | int slice_params_num_buf; | ||
184 | |||
185 | struct { | ||
186 | unsigned width; | ||
187 | unsigned height; | ||
188 | } codeblock[MAX_DWT_LEVELS+1]; | ||
189 | |||
190 | struct { | ||
191 | AVRational bytes; /* average bytes per slice */ | ||
192 | uint8_t quant[MAX_DWT_LEVELS][4]; /* [DIRAC_STD] E.1 */ | ||
193 | } lowdelay; | ||
194 | |||
195 | struct { | ||
196 | unsigned prefix_bytes; | ||
197 | uint64_t size_scaler; | ||
198 | } highquality; | ||
199 | |||
200 | struct { | ||
201 | int pan_tilt[2]; /* pan/tilt vector */ | ||
202 | int zrs[2][2]; /* zoom/rotate/shear matrix */ | ||
203 | int perspective[2]; /* perspective vector */ | ||
204 | unsigned zrs_exp; | ||
205 | unsigned perspective_exp; | ||
206 | } globalmc[2]; | ||
207 | |||
208 | /* motion compensation */ | ||
209 | uint8_t mv_precision; /* [DIRAC_STD] REFS_WT_PRECISION */ | ||
210 | int16_t weight[2]; /* [DIRAC_STD] REF1_WT and REF2_WT */ | ||
211 | unsigned weight_log2denom; /* [DIRAC_STD] REFS_WT_PRECISION */ | ||
212 | |||
213 | int blwidth; /* number of blocks (horizontally) */ | ||
214 | int blheight; /* number of blocks (vertically) */ | ||
215 | int sbwidth; /* number of superblocks (horizontally) */ | ||
216 | int sbheight; /* number of superblocks (vertically) */ | ||
217 | |||
218 | uint8_t *sbsplit; | ||
219 | DiracBlock *blmotion; | ||
220 | |||
221 | uint8_t *edge_emu_buffer[4]; | ||
222 | uint8_t *edge_emu_buffer_base; | ||
223 | |||
224 | uint16_t *mctmp; /* buffer holding the MC data multiplied by OBMC weights */ | ||
225 | uint8_t *mcscratch; | ||
226 | int buffer_stride; | ||
227 | |||
228 | DECLARE_ALIGNED(16, uint8_t, obmc_weight)[3][MAX_BLOCKSIZE*MAX_BLOCKSIZE]; | ||
229 | |||
230 | void (*put_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h); | ||
231 | void (*avg_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h); | ||
232 | void (*add_obmc)(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen); | ||
233 | dirac_weight_func weight_func; | ||
234 | dirac_biweight_func biweight_func; | ||
235 | |||
236 | DiracFrame *current_picture; | ||
237 | DiracFrame *ref_pics[2]; | ||
238 | |||
239 | DiracFrame *ref_frames[MAX_REFERENCE_FRAMES+1]; | ||
240 | DiracFrame *delay_frames[MAX_DELAY+1]; | ||
241 | DiracFrame all_frames[MAX_FRAMES]; | ||
242 | } DiracContext; | ||
243 | |||
244 | enum dirac_subband { | ||
245 | subband_ll = 0, | ||
246 | subband_hl = 1, | ||
247 | subband_lh = 2, | ||
248 | subband_hh = 3, | ||
249 | subband_nb, | ||
250 | }; | ||
251 | |||
252 | /* magic number division by 3 from schroedinger */ | ||
253 | 55371 | static inline int divide3(int x) | |
254 | { | ||
255 | 55371 | return (int)((x+1U)*21845 + 10922) >> 16; | |
256 | } | ||
257 | |||
258 | 14 | static DiracFrame *remove_frame(DiracFrame *framelist[], unsigned picnum) | |
259 | { | ||
260 | 14 | DiracFrame *remove_pic = NULL; | |
261 | 14 | int i, remove_idx = -1; | |
262 | |||
263 |
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39 | for (i = 0; framelist[i]; i++) |
264 |
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25 | if (framelist[i]->picture_number == picnum) { |
265 | 13 | remove_pic = framelist[i]; | |
266 | 13 | remove_idx = i; | |
267 | } | ||
268 | |||
269 |
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14 | if (remove_pic) |
270 |
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32 | for (i = remove_idx; framelist[i]; i++) |
271 | 19 | framelist[i] = framelist[i+1]; | |
272 | |||
273 | 14 | return remove_pic; | |
274 | } | ||
275 | |||
276 | 18 | static int add_frame(DiracFrame *framelist[], int maxframes, DiracFrame *frame) | |
277 | { | ||
278 | int i; | ||
279 |
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33 | for (i = 0; i < maxframes; i++) |
280 |
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33 | if (!framelist[i]) { |
281 | 18 | framelist[i] = frame; | |
282 | 18 | return 0; | |
283 | } | ||
284 | ✗ | return -1; | |
285 | } | ||
286 | |||
287 | 70 | static int alloc_sequence_buffers(DiracContext *s) | |
288 | { | ||
289 | 70 | int sbwidth = DIVRNDUP(s->seq.width, 4); | |
290 | 70 | int sbheight = DIVRNDUP(s->seq.height, 4); | |
291 | int i, w, h, top_padding; | ||
292 | |||
293 | /* todo: think more about this / use or set Plane here */ | ||
294 |
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280 | for (i = 0; i < 3; i++) { |
295 |
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210 | int max_xblen = MAX_BLOCKSIZE >> (i ? s->chroma_x_shift : 0); |
296 |
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210 | int max_yblen = MAX_BLOCKSIZE >> (i ? s->chroma_y_shift : 0); |
297 |
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210 | w = s->seq.width >> (i ? s->chroma_x_shift : 0); |
298 |
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210 | h = s->seq.height >> (i ? s->chroma_y_shift : 0); |
299 | |||
300 | /* we allocate the max we support here since num decompositions can | ||
301 | * change from frame to frame. Stride is aligned to 16 for SIMD, and | ||
302 | * 1<<MAX_DWT_LEVELS top padding to avoid if(y>0) in arith decoding | ||
303 | * MAX_BLOCKSIZE padding for MC: blocks can spill up to half of that | ||
304 | * on each side */ | ||
305 |
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210 | top_padding = FFMAX(1<<MAX_DWT_LEVELS, max_yblen/2); |
306 | 210 | w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); /* FIXME: Should this be 16 for SSE??? */ | |
307 | 210 | h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2; | |
308 | |||
309 | 210 | s->plane[i].idwt.buf_base = av_calloc(w + max_xblen, h * (2 << s->pshift)); | |
310 | 210 | s->plane[i].idwt.tmp = av_malloc_array((w+16), 2 << s->pshift); | |
311 | 210 | s->plane[i].idwt.buf = s->plane[i].idwt.buf_base + (top_padding*w)*(2 << s->pshift); | |
312 |
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210 | if (!s->plane[i].idwt.buf_base || !s->plane[i].idwt.tmp) |
313 | ✗ | return AVERROR(ENOMEM); | |
314 | } | ||
315 | |||
316 | /* fixme: allocate using real stride here */ | ||
317 | 70 | s->sbsplit = av_malloc_array(sbwidth, sbheight); | |
318 | 70 | s->blmotion = av_malloc_array(sbwidth, sbheight * 16 * sizeof(*s->blmotion)); | |
319 | |||
320 |
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70 | if (!s->sbsplit || !s->blmotion) |
321 | ✗ | return AVERROR(ENOMEM); | |
322 | 70 | return 0; | |
323 | } | ||
324 | |||
325 | 260 | static int alloc_buffers(DiracContext *s, int stride) | |
326 | { | ||
327 | 260 | int w = s->seq.width; | |
328 | 260 | int h = s->seq.height; | |
329 | |||
330 |
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260 | av_assert0(stride >= w); |
331 | 260 | stride += 64; | |
332 | |||
333 |
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260 | if (s->buffer_stride >= stride) |
334 | 190 | return 0; | |
335 | 70 | s->buffer_stride = 0; | |
336 | |||
337 | 70 | av_freep(&s->edge_emu_buffer_base); | |
338 | 70 | memset(s->edge_emu_buffer, 0, sizeof(s->edge_emu_buffer)); | |
339 | 70 | av_freep(&s->mctmp); | |
340 | 70 | av_freep(&s->mcscratch); | |
341 | |||
342 | 70 | s->edge_emu_buffer_base = av_malloc_array(stride, MAX_BLOCKSIZE); | |
343 | |||
344 | 70 | s->mctmp = av_malloc_array((stride+MAX_BLOCKSIZE), (h+MAX_BLOCKSIZE) * sizeof(*s->mctmp)); | |
345 | 70 | s->mcscratch = av_malloc_array(stride, MAX_BLOCKSIZE); | |
346 | |||
347 |
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70 | if (!s->edge_emu_buffer_base || !s->mctmp || !s->mcscratch) |
348 | ✗ | return AVERROR(ENOMEM); | |
349 | |||
350 | 70 | s->buffer_stride = stride; | |
351 | 70 | return 0; | |
352 | } | ||
353 | |||
354 | 70 | static av_cold void free_sequence_buffers(DiracContext *s) | |
355 | { | ||
356 | int i, j, k; | ||
357 | |||
358 |
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1050 | for (i = 0; i < MAX_FRAMES; i++) { |
359 |
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980 | if (s->all_frames[i].avframe->data[0]) { |
360 | 38 | av_frame_unref(s->all_frames[i].avframe); | |
361 | 38 | memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated)); | |
362 | } | ||
363 | |||
364 |
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3920 | for (j = 0; j < 3; j++) |
365 |
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11760 | for (k = 1; k < 4; k++) |
366 | 8820 | av_freep(&s->all_frames[i].hpel_base[j][k]); | |
367 | } | ||
368 | |||
369 | 70 | memset(s->ref_frames, 0, sizeof(s->ref_frames)); | |
370 | 70 | memset(s->delay_frames, 0, sizeof(s->delay_frames)); | |
371 | |||
372 |
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280 | for (i = 0; i < 3; i++) { |
373 | 210 | av_freep(&s->plane[i].idwt.buf_base); | |
374 | 210 | av_freep(&s->plane[i].idwt.tmp); | |
375 | } | ||
376 | |||
377 | 70 | s->buffer_stride = 0; | |
378 | 70 | av_freep(&s->sbsplit); | |
379 | 70 | av_freep(&s->blmotion); | |
380 | 70 | av_freep(&s->edge_emu_buffer_base); | |
381 | |||
382 | 70 | av_freep(&s->mctmp); | |
383 | 70 | av_freep(&s->mcscratch); | |
384 | 70 | } | |
385 | |||
386 | static AVOnce dirac_arith_init = AV_ONCE_INIT; | ||
387 | |||
388 | 70 | static av_cold int dirac_decode_init(AVCodecContext *avctx) | |
389 | { | ||
390 | 70 | DiracContext *s = avctx->priv_data; | |
391 | int i, ret; | ||
392 | |||
393 | 70 | s->avctx = avctx; | |
394 | 70 | s->frame_number = -1; | |
395 | |||
396 | 70 | s->thread_buf = NULL; | |
397 | 70 | s->threads_num_buf = -1; | |
398 | 70 | s->thread_buf_size = -1; | |
399 | |||
400 | 70 | ff_diracdsp_init(&s->diracdsp); | |
401 | 70 | ff_mpegvideoencdsp_init(&s->mpvencdsp, avctx); | |
402 | 70 | ff_videodsp_init(&s->vdsp, 8); | |
403 | |||
404 |
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1050 | for (i = 0; i < MAX_FRAMES; i++) { |
405 | 980 | s->all_frames[i].avframe = av_frame_alloc(); | |
406 |
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980 | if (!s->all_frames[i].avframe) |
407 | ✗ | return AVERROR(ENOMEM); | |
408 | } | ||
409 | 70 | ret = ff_thread_once(&dirac_arith_init, ff_dirac_init_arith_tables); | |
410 |
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70 | if (ret != 0) |
411 | ✗ | return AVERROR_UNKNOWN; | |
412 | |||
413 | 70 | return 0; | |
414 | } | ||
415 | |||
416 | ✗ | static av_cold void dirac_decode_flush(AVCodecContext *avctx) | |
417 | { | ||
418 | ✗ | DiracContext *s = avctx->priv_data; | |
419 | ✗ | free_sequence_buffers(s); | |
420 | ✗ | s->seen_sequence_header = 0; | |
421 | ✗ | s->frame_number = -1; | |
422 | ✗ | } | |
423 | |||
424 | 70 | static av_cold int dirac_decode_end(AVCodecContext *avctx) | |
425 | { | ||
426 | 70 | DiracContext *s = avctx->priv_data; | |
427 | int i; | ||
428 | |||
429 | // Necessary in case dirac_decode_init() failed | ||
430 |
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70 | if (s->all_frames[MAX_FRAMES - 1].avframe) |
431 | 70 | free_sequence_buffers(s); | |
432 |
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1050 | for (i = 0; i < MAX_FRAMES; i++) |
433 | 980 | av_frame_free(&s->all_frames[i].avframe); | |
434 | |||
435 | 70 | av_freep(&s->thread_buf); | |
436 | 70 | av_freep(&s->slice_params_buf); | |
437 | |||
438 | 70 | return 0; | |
439 | } | ||
440 | |||
441 | 1949239 | static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset) | |
442 | { | ||
443 | 1949239 | int coeff = dirac_get_se_golomb(gb); | |
444 |
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1949239 | const unsigned sign = FFSIGN(coeff); |
445 |
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1949239 | if (coeff) |
446 | 336797 | coeff = sign*((sign * coeff * qfactor + qoffset) >> 2); | |
447 | 1949239 | return coeff; | |
448 | } | ||
449 | |||
450 | #define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0)) | ||
451 | |||
452 | #define UNPACK_ARITH(n, type) \ | ||
453 | static inline void coeff_unpack_arith_##n(DiracArith *c, int qfactor, int qoffset, \ | ||
454 | SubBand *b, type *buf, int x, int y) \ | ||
455 | { \ | ||
456 | int sign, sign_pred = 0, pred_ctx = CTX_ZPZN_F1; \ | ||
457 | unsigned coeff; \ | ||
458 | const int mstride = -(b->stride >> (1+b->pshift)); \ | ||
459 | if (b->parent) { \ | ||
460 | const type *pbuf = (type *)b->parent->ibuf; \ | ||
461 | const int stride = b->parent->stride >> (1+b->parent->pshift); \ | ||
462 | pred_ctx += !!pbuf[stride * (y>>1) + (x>>1)] << 1; \ | ||
463 | } \ | ||
464 | if (b->orientation == subband_hl) \ | ||
465 | sign_pred = buf[mstride]; \ | ||
466 | if (x) { \ | ||
467 | pred_ctx += !(buf[-1] | buf[mstride] | buf[-1 + mstride]); \ | ||
468 | if (b->orientation == subband_lh) \ | ||
469 | sign_pred = buf[-1]; \ | ||
470 | } else { \ | ||
471 | pred_ctx += !buf[mstride]; \ | ||
472 | } \ | ||
473 | coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA); \ | ||
474 | if (coeff) { \ | ||
475 | coeff = (coeff * qfactor + qoffset) >> 2; \ | ||
476 | sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred)); \ | ||
477 | coeff = (coeff ^ -sign) + sign; \ | ||
478 | } \ | ||
479 | *buf = coeff; \ | ||
480 | } \ | ||
481 | |||
482 |
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337100 | UNPACK_ARITH(8, int16_t) |
483 | ✗ | UNPACK_ARITH(10, int32_t) | |
484 | |||
485 | /** | ||
486 | * Decode the coeffs in the rectangle defined by left, right, top, bottom | ||
487 | * [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock() | ||
488 | */ | ||
489 | 82699 | static inline int codeblock(const DiracContext *s, SubBand *b, | |
490 | GetBitContext *gb, DiracArith *c, | ||
491 | int left, int right, int top, int bottom, | ||
492 | int blockcnt_one, int is_arith) | ||
493 | { | ||
494 | int x, y, zero_block; | ||
495 | int qoffset, qfactor; | ||
496 | uint8_t *buf; | ||
497 | |||
498 | /* check for any coded coefficients in this codeblock */ | ||
499 |
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82699 | if (!blockcnt_one) { |
500 |
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82635 | if (is_arith) |
501 | 82635 | zero_block = dirac_get_arith_bit(c, CTX_ZERO_BLOCK); | |
502 | else | ||
503 | ✗ | zero_block = get_bits1(gb); | |
504 | |||
505 |
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82635 | if (zero_block) |
506 | 77258 | return 0; | |
507 | } | ||
508 | |||
509 |
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5441 | if (s->codeblock_mode && !(s->old_delta_quant && blockcnt_one)) { |
510 | int quant; | ||
511 | ✗ | if (is_arith) | |
512 | ✗ | quant = dirac_get_arith_int(c, CTX_DELTA_Q_F, CTX_DELTA_Q_DATA); | |
513 | else | ||
514 | ✗ | quant = dirac_get_se_golomb(gb); | |
515 | ✗ | if (quant > INT_MAX - b->quant || b->quant + quant < 0) { | |
516 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid quant\n"); | |
517 | ✗ | return AVERROR_INVALIDDATA; | |
518 | } | ||
519 | ✗ | b->quant += quant; | |
520 | } | ||
521 | |||
522 |
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5441 | if (b->quant > (DIRAC_MAX_QUANT_INDEX - 1)) { |
523 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Unsupported quant %d\n", b->quant); | |
524 | ✗ | b->quant = 0; | |
525 | ✗ | return AVERROR_INVALIDDATA; | |
526 | } | ||
527 | |||
528 | 5441 | qfactor = ff_dirac_qscale_tab[b->quant]; | |
529 | /* TODO: context pointer? */ | ||
530 |
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5441 | if (!s->num_refs) |
531 | 1700 | qoffset = ff_dirac_qoffset_intra_tab[b->quant] + 2; | |
532 | else | ||
533 | 3741 | qoffset = ff_dirac_qoffset_inter_tab[b->quant] + 2; | |
534 | |||
535 | 5441 | buf = b->ibuf + top * b->stride; | |
536 |
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5441 | if (is_arith) { |
537 |
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46055 | for (y = top; y < bottom; y++) { |
538 |
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40614 | if (c->error) |
539 | ✗ | return c->error; | |
540 |
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377714 | for (x = left; x < right; x++) { |
541 |
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337100 | if (b->pshift) { |
542 | ✗ | coeff_unpack_arith_10(c, qfactor, qoffset, b, (int32_t*)(buf)+x, x, y); | |
543 | } else { | ||
544 | 337100 | coeff_unpack_arith_8(c, qfactor, qoffset, b, (int16_t*)(buf)+x, x, y); | |
545 | } | ||
546 | } | ||
547 | 40614 | buf += b->stride; | |
548 | } | ||
549 | } else { | ||
550 | ✗ | for (y = top; y < bottom; y++) { | |
551 | ✗ | if (get_bits_left(gb) < 1) | |
552 | ✗ | return AVERROR_INVALIDDATA; | |
553 | ✗ | for (x = left; x < right; x++) { | |
554 | ✗ | int val = coeff_unpack_golomb(gb, qfactor, qoffset); | |
555 | ✗ | if (b->pshift) { | |
556 | ✗ | AV_WN32(&buf[4*x], val); | |
557 | } else { | ||
558 | ✗ | AV_WN16(&buf[2*x], val); | |
559 | } | ||
560 | } | ||
561 | ✗ | buf += b->stride; | |
562 | } | ||
563 | } | ||
564 | 5441 | return 0; | |
565 | } | ||
566 | |||
567 | /** | ||
568 | * Dirac Specification -> | ||
569 | * 13.3 intra_dc_prediction(band) | ||
570 | */ | ||
571 | #define INTRA_DC_PRED(n, type) \ | ||
572 | static inline void intra_dc_prediction_##n(SubBand *b) \ | ||
573 | { \ | ||
574 | type *buf = (type*)b->ibuf; \ | ||
575 | int x, y; \ | ||
576 | \ | ||
577 | for (x = 1; x < b->width; x++) \ | ||
578 | buf[x] += buf[x-1]; \ | ||
579 | buf += (b->stride >> (1+b->pshift)); \ | ||
580 | \ | ||
581 | for (y = 1; y < b->height; y++) { \ | ||
582 | buf[0] += buf[-(b->stride >> (1+b->pshift))]; \ | ||
583 | \ | ||
584 | for (x = 1; x < b->width; x++) { \ | ||
585 | int pred = buf[x - 1] + buf[x - (b->stride >> (1+b->pshift))] + buf[x - (b->stride >> (1+b->pshift))-1]; \ | ||
586 | buf[x] += divide3(pred); \ | ||
587 | } \ | ||
588 | buf += (b->stride >> (1+b->pshift)); \ | ||
589 | } \ | ||
590 | } \ | ||
591 | |||
592 |
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59400 | INTRA_DC_PRED(8, int16_t) |
593 | ✗ | INTRA_DC_PRED(10, uint32_t) | |
594 | |||
595 | /** | ||
596 | * Dirac Specification -> | ||
597 | * 13.4.2 Non-skipped subbands. subband_coeffs() | ||
598 | */ | ||
599 | 930 | static av_always_inline int decode_subband_internal(const DiracContext *s, | |
600 | SubBand *b, int is_arith) | ||
601 | { | ||
602 | int cb_x, cb_y, left, right, top, bottom; | ||
603 | DiracArith c; | ||
604 | GetBitContext gb; | ||
605 | 930 | int cb_width = s->codeblock[b->level + (b->orientation != subband_ll)].width; | |
606 | 930 | int cb_height = s->codeblock[b->level + (b->orientation != subband_ll)].height; | |
607 | 930 | int blockcnt_one = (cb_width + cb_height) == 2; | |
608 | int ret; | ||
609 | |||
610 |
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930 | if (!b->length) |
611 | 263 | return 0; | |
612 | |||
613 | 667 | init_get_bits8(&gb, b->coeff_data, b->length); | |
614 | |||
615 |
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667 | if (is_arith) |
616 | 667 | ff_dirac_init_arith_decoder(&c, &gb, b->length); | |
617 | |||
618 | 667 | top = 0; | |
619 |
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5972 | for (cb_y = 0; cb_y < cb_height; cb_y++) { |
620 | 5305 | bottom = (b->height * (cb_y+1LL)) / cb_height; | |
621 | 5305 | left = 0; | |
622 |
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88004 | for (cb_x = 0; cb_x < cb_width; cb_x++) { |
623 | 82699 | right = (b->width * (cb_x+1LL)) / cb_width; | |
624 | 82699 | ret = codeblock(s, b, &gb, &c, left, right, top, bottom, blockcnt_one, is_arith); | |
625 |
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82699 | if (ret < 0) |
626 | ✗ | return ret; | |
627 | 82699 | left = right; | |
628 | } | ||
629 | 5305 | top = bottom; | |
630 | } | ||
631 | |||
632 |
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667 | if (b->orientation == subband_ll && s->num_refs == 0) { |
633 |
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6 | if (s->pshift) { |
634 | ✗ | intra_dc_prediction_10(b); | |
635 | } else { | ||
636 | 6 | intra_dc_prediction_8(b); | |
637 | } | ||
638 | } | ||
639 | 667 | return 0; | |
640 | } | ||
641 | |||
642 | 930 | static int decode_subband_arith(AVCodecContext *avctx, void *b) | |
643 | { | ||
644 | 930 | const DiracContext *s = avctx->priv_data; | |
645 | 930 | return decode_subband_internal(s, b, 1); | |
646 | } | ||
647 | |||
648 | ✗ | static int decode_subband_golomb(AVCodecContext *avctx, void *arg) | |
649 | { | ||
650 | ✗ | const DiracContext *s = avctx->priv_data; | |
651 | ✗ | SubBand **b = arg; | |
652 | ✗ | return decode_subband_internal(s, *b, 0); | |
653 | } | ||
654 | |||
655 | /** | ||
656 | * Dirac Specification -> | ||
657 | * [DIRAC_STD] 13.4.1 core_transform_data() | ||
658 | */ | ||
659 | 93 | static int decode_component(DiracContext *s, int comp) | |
660 | { | ||
661 | 93 | AVCodecContext *avctx = s->avctx; | |
662 | SubBand *bands[3*MAX_DWT_LEVELS+1]; | ||
663 | enum dirac_subband orientation; | ||
664 | 93 | int level, num_bands = 0; | |
665 | int ret[3*MAX_DWT_LEVELS+1]; | ||
666 | int i; | ||
667 | 93 | int damaged_count = 0; | |
668 | |||
669 | /* Unpack all subbands at all levels. */ | ||
670 |
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372 | for (level = 0; level < s->wavelet_depth; level++) { |
671 |
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1209 | for (orientation = !!level; orientation < 4; orientation++) { |
672 | 930 | SubBand *b = &s->plane[comp].band[level][orientation]; | |
673 | 930 | bands[num_bands++] = b; | |
674 | |||
675 | 930 | align_get_bits(&s->gb); | |
676 | /* [DIRAC_STD] 13.4.2 subband() */ | ||
677 | 930 | b->length = get_interleaved_ue_golomb(&s->gb); | |
678 |
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930 | if (b->length) { |
679 | 667 | b->quant = get_interleaved_ue_golomb(&s->gb); | |
680 |
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667 | if (b->quant > (DIRAC_MAX_QUANT_INDEX - 1)) { |
681 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Unsupported quant %d\n", b->quant); | |
682 | ✗ | b->quant = 0; | |
683 | ✗ | return AVERROR_INVALIDDATA; | |
684 | } | ||
685 | 667 | align_get_bits(&s->gb); | |
686 | 667 | b->coeff_data = s->gb.buffer + get_bits_count(&s->gb)/8; | |
687 |
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667 | if (b->length > FFMAX(get_bits_left(&s->gb)/8, 0)) { |
688 | ✗ | b->length = FFMAX(get_bits_left(&s->gb)/8, 0); | |
689 | ✗ | damaged_count ++; | |
690 | } | ||
691 | 667 | skip_bits_long(&s->gb, b->length*8); | |
692 | } | ||
693 | } | ||
694 | /* arithmetic coding has inter-level dependencies, so we can only execute one level at a time */ | ||
695 |
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279 | if (s->is_arith) |
696 |
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279 | avctx->execute(avctx, decode_subband_arith, &s->plane[comp].band[level][!!level], |
697 |
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279 | ret + 3*level + !!level, 4-!!level, sizeof(SubBand)); |
698 | } | ||
699 | /* golomb coding has no inter-level dependencies, so we can execute all subbands in parallel */ | ||
700 |
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93 | if (!s->is_arith) |
701 | ✗ | avctx->execute(avctx, decode_subband_golomb, bands, ret, num_bands, sizeof(SubBand*)); | |
702 | |||
703 |
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1023 | for (i = 0; i < s->wavelet_depth * 3 + 1; i++) { |
704 |
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930 | if (ret[i] < 0) |
705 | ✗ | damaged_count++; | |
706 | } | ||
707 |
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93 | if (damaged_count > (s->wavelet_depth * 3 + 1) /2) |
708 | ✗ | return AVERROR_INVALIDDATA; | |
709 | |||
710 | 93 | return 0; | |
711 | } | ||
712 | |||
713 | #define PARSE_VALUES(type, x, gb, ebits, buf1, buf2) \ | ||
714 | type *buf = (type *)buf1; \ | ||
715 | buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \ | ||
716 | if (get_bits_count(gb) >= ebits) \ | ||
717 | return; \ | ||
718 | if (buf2) { \ | ||
719 | buf = (type *)buf2; \ | ||
720 | buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset); \ | ||
721 | if (get_bits_count(gb) >= ebits) \ | ||
722 | return; \ | ||
723 | } \ | ||
724 | |||
725 | 186000 | static void decode_subband(const DiracContext *s, GetBitContext *gb, int quant, | |
726 | int slice_x, int slice_y, int bits_end, | ||
727 | const SubBand *b1, const SubBand *b2) | ||
728 | { | ||
729 | 186000 | int left = b1->width * slice_x / s->num_x; | |
730 | 186000 | int right = b1->width *(slice_x+1) / s->num_x; | |
731 | 186000 | int top = b1->height * slice_y / s->num_y; | |
732 | 186000 | int bottom = b1->height *(slice_y+1) / s->num_y; | |
733 | |||
734 | int qfactor, qoffset; | ||
735 | |||
736 | 186000 | uint8_t *buf1 = b1->ibuf + top * b1->stride; | |
737 |
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186000 | uint8_t *buf2 = b2 ? b2->ibuf + top * b2->stride: NULL; |
738 | int x, y; | ||
739 | |||
740 |
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186000 | if (quant > (DIRAC_MAX_QUANT_INDEX - 1)) { |
741 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Unsupported quant %d\n", quant); | |
742 | ✗ | return; | |
743 | } | ||
744 | 186000 | qfactor = ff_dirac_qscale_tab[quant]; | |
745 | 186000 | qoffset = ff_dirac_qoffset_intra_tab[quant] + 2; | |
746 | /* we have to constantly check for overread since the spec explicitly | ||
747 | requires this, with the meaning that all remaining coeffs are set to 0 */ | ||
748 |
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186000 | if (get_bits_count(gb) >= bits_end) |
749 | 38746 | return; | |
750 | |||
751 |
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147254 | if (s->pshift) { |
752 | ✗ | for (y = top; y < bottom; y++) { | |
753 | ✗ | for (x = left; x < right; x++) { | |
754 | ✗ | PARSE_VALUES(int32_t, x, gb, bits_end, buf1, buf2); | |
755 | } | ||
756 | ✗ | buf1 += b1->stride; | |
757 | ✗ | if (buf2) | |
758 | ✗ | buf2 += b2->stride; | |
759 | } | ||
760 | } | ||
761 | else { | ||
762 |
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518899 | for (y = top; y < bottom; y++) { |
763 |
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1836007 | for (x = left; x < right; x++) { |
764 |
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1464362 | PARSE_VALUES(int16_t, x, gb, bits_end, buf1, buf2); |
765 | } | ||
766 | 371645 | buf1 += b1->stride; | |
767 |
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371645 | if (buf2) |
768 | 173605 | buf2 += b2->stride; | |
769 | } | ||
770 | } | ||
771 | } | ||
772 | |||
773 | /** | ||
774 | * Dirac Specification -> | ||
775 | * 13.5.2 Slices. slice(sx,sy) | ||
776 | */ | ||
777 | 9300 | static int decode_lowdelay_slice(AVCodecContext *avctx, void *arg) | |
778 | { | ||
779 | 9300 | const DiracContext *s = avctx->priv_data; | |
780 | 9300 | DiracSlice *slice = arg; | |
781 | 9300 | GetBitContext *gb = &slice->gb; | |
782 | enum dirac_subband orientation; | ||
783 | int level, quant, chroma_bits, chroma_end; | ||
784 | |||
785 | 9300 | int quant_base = get_bits(gb, 7); /*[DIRAC_STD] qindex */ | |
786 | 9300 | int length_bits = av_log2(8 * slice->bytes)+1; | |
787 | 9300 | int luma_bits = get_bits_long(gb, length_bits); | |
788 |
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9300 | int luma_end = get_bits_count(gb) + FFMIN(luma_bits, get_bits_left(gb)); |
789 | |||
790 | /* [DIRAC_STD] 13.5.5.2 luma_slice_band */ | ||
791 |
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37200 | for (level = 0; level < s->wavelet_depth; level++) |
792 |
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120900 | for (orientation = !!level; orientation < 4; orientation++) { |
793 | 93000 | quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0); | |
794 | 93000 | decode_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end, | |
795 | &s->plane[0].band[level][orientation], NULL); | ||
796 | } | ||
797 | |||
798 | /* consume any unused bits from luma */ | ||
799 | 9300 | skip_bits_long(gb, get_bits_count(gb) - luma_end); | |
800 | |||
801 | 9300 | chroma_bits = 8*slice->bytes - 7 - length_bits - luma_bits; | |
802 |
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9300 | chroma_end = get_bits_count(gb) + FFMIN(chroma_bits, get_bits_left(gb)); |
803 | /* [DIRAC_STD] 13.5.5.3 chroma_slice_band */ | ||
804 |
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37200 | for (level = 0; level < s->wavelet_depth; level++) |
805 |
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120900 | for (orientation = !!level; orientation < 4; orientation++) { |
806 | 93000 | quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0); | |
807 | 93000 | decode_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end, | |
808 | &s->plane[1].band[level][orientation], | ||
809 | &s->plane[2].band[level][orientation]); | ||
810 | } | ||
811 | |||
812 | 9300 | return 0; | |
813 | } | ||
814 | |||
815 | typedef struct SliceCoeffs { | ||
816 | int left; | ||
817 | int top; | ||
818 | int tot_h; | ||
819 | int tot_v; | ||
820 | int tot; | ||
821 | } SliceCoeffs; | ||
822 | |||
823 | 117841 | static int subband_coeffs(const DiracContext *s, int x, int y, int p, | |
824 | SliceCoeffs c[MAX_DWT_LEVELS]) | ||
825 | { | ||
826 | 117841 | int level, coef = 0; | |
827 |
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589174 | for (level = 0; level < s->wavelet_depth; level++) { |
828 | 471333 | SliceCoeffs *o = &c[level]; | |
829 | 471333 | const SubBand *b = &s->plane[p].band[level][3]; /* orientation doens't matter */ | |
830 | 471333 | o->top = b->height * y / s->num_y; | |
831 | 471333 | o->left = b->width * x / s->num_x; | |
832 | 471333 | o->tot_h = ((b->width * (x + 1)) / s->num_x) - o->left; | |
833 | 471333 | o->tot_v = ((b->height * (y + 1)) / s->num_y) - o->top; | |
834 | 471333 | o->tot = o->tot_h*o->tot_v; | |
835 |
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471333 | coef += o->tot * (4 - !!level); |
836 | } | ||
837 | 117841 | return coef; | |
838 | } | ||
839 | |||
840 | /** | ||
841 | * VC-2 Specification -> | ||
842 | * 13.5.3 hq_slice(sx,sy) | ||
843 | */ | ||
844 | 39204 | static int decode_hq_slice(const DiracContext *s, DiracSlice *slice, uint8_t *tmp_buf) | |
845 | { | ||
846 | int i, level, orientation, quant_idx; | ||
847 | int qfactor[MAX_DWT_LEVELS][4], qoffset[MAX_DWT_LEVELS][4]; | ||
848 | 39204 | GetBitContext *gb = &slice->gb; | |
849 | SliceCoeffs coeffs_num[MAX_DWT_LEVELS]; | ||
850 | |||
851 | 39204 | skip_bits_long(gb, 8*s->highquality.prefix_bytes); | |
852 | 39204 | quant_idx = get_bits(gb, 8); | |
853 | |||
854 |
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39204 | if (quant_idx > DIRAC_MAX_QUANT_INDEX - 1) { |
855 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid quantization index - %i\n", quant_idx); | |
856 | ✗ | return AVERROR_INVALIDDATA; | |
857 | } | ||
858 | |||
859 | /* Slice quantization (slice_quantizers() in the specs) */ | ||
860 |
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196020 | for (level = 0; level < s->wavelet_depth; level++) { |
861 |
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666468 | for (orientation = !!level; orientation < 4; orientation++) { |
862 | 509652 | const int quant = FFMAX(quant_idx - s->lowdelay.quant[level][orientation], 0); | |
863 | 509652 | qfactor[level][orientation] = ff_dirac_qscale_tab[quant]; | |
864 | 509652 | qoffset[level][orientation] = ff_dirac_qoffset_intra_tab[quant] + 2; | |
865 | } | ||
866 | } | ||
867 | |||
868 | /* Luma + 2 Chroma planes */ | ||
869 |
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156816 | for (i = 0; i < 3; i++) { |
870 | 117612 | int coef_num, coef_par, off = 0; | |
871 | 117612 | int64_t length = s->highquality.size_scaler*get_bits(gb, 8); | |
872 | 117612 | int64_t bits_end = get_bits_count(gb) + 8*length; | |
873 | 117612 | const uint8_t *addr = align_get_bits(gb); | |
874 | |||
875 |
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117612 | if (length*8 > get_bits_left(gb)) { |
876 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "end too far away\n"); | |
877 | ✗ | return AVERROR_INVALIDDATA; | |
878 | } | ||
879 | |||
880 | 117612 | coef_num = subband_coeffs(s, slice->slice_x, slice->slice_y, i, coeffs_num); | |
881 | |||
882 |
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117612 | if (s->pshift) |
883 | 85536 | coef_par = ff_dirac_golomb_read_32bit(addr, length, | |
884 | tmp_buf, coef_num); | ||
885 | else | ||
886 | 32076 | coef_par = ff_dirac_golomb_read_16bit(addr, length, | |
887 | tmp_buf, coef_num); | ||
888 | |||
889 |
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117612 | if (coef_num > coef_par) { |
890 | ✗ | const int start_b = coef_par * (1 << (s->pshift + 1)); | |
891 | ✗ | const int end_b = coef_num * (1 << (s->pshift + 1)); | |
892 | ✗ | memset(&tmp_buf[start_b], 0, end_b - start_b); | |
893 | } | ||
894 | |||
895 |
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588060 | for (level = 0; level < s->wavelet_depth; level++) { |
896 | 470448 | const SliceCoeffs *c = &coeffs_num[level]; | |
897 |
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1999404 | for (orientation = !!level; orientation < 4; orientation++) { |
898 | 1528956 | const SubBand *b1 = &s->plane[i].band[level][orientation]; | |
899 | 1528956 | uint8_t *buf = b1->ibuf + c->top * b1->stride + (c->left << (s->pshift + 1)); | |
900 | |||
901 | /* Change to c->tot_h <= 4 for AVX2 dequantization */ | ||
902 |
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1528956 | const int qfunc = s->pshift + 2*(c->tot_h <= 2); |
903 | 1528956 | s->diracdsp.dequant_subband[qfunc](&tmp_buf[off], buf, b1->stride, | |
904 | qfactor[level][orientation], | ||
905 | qoffset[level][orientation], | ||
906 | 1528956 | c->tot_v, c->tot_h); | |
907 | |||
908 | 1528956 | off += c->tot << (s->pshift + 1); | |
909 | } | ||
910 | } | ||
911 | |||
912 | 117612 | skip_bits_long(gb, bits_end - get_bits_count(gb)); | |
913 | } | ||
914 | |||
915 | 39204 | return 0; | |
916 | } | ||
917 | |||
918 | 3564 | static int decode_hq_slice_row(AVCodecContext *avctx, void *arg, int jobnr, int threadnr) | |
919 | { | ||
920 | int i; | ||
921 | 3564 | const DiracContext *s = avctx->priv_data; | |
922 | 3564 | DiracSlice *slices = ((DiracSlice *)arg) + s->num_x*jobnr; | |
923 | 3564 | uint8_t *thread_buf = &s->thread_buf[s->thread_buf_size*threadnr]; | |
924 |
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42768 | for (i = 0; i < s->num_x; i++) |
925 | 39204 | decode_hq_slice(s, &slices[i], thread_buf); | |
926 | 3564 | return 0; | |
927 | } | ||
928 | |||
929 | /** | ||
930 | * Dirac Specification -> | ||
931 | * 13.5.1 low_delay_transform_data() | ||
932 | */ | ||
933 | 229 | static int decode_lowdelay(DiracContext *s) | |
934 | { | ||
935 | 229 | AVCodecContext *avctx = s->avctx; | |
936 | int slice_x, slice_y, bufsize; | ||
937 | 229 | int64_t coef_buf_size, bytes = 0; | |
938 | const uint8_t *buf; | ||
939 | DiracSlice *slices; | ||
940 | SliceCoeffs tmp[MAX_DWT_LEVELS]; | ||
941 | 229 | int slice_num = 0; | |
942 | |||
943 |
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229 | if (s->slice_params_num_buf != (s->num_x * s->num_y)) { |
944 | 68 | s->slice_params_buf = av_realloc_f(s->slice_params_buf, s->num_x * s->num_y, sizeof(DiracSlice)); | |
945 |
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68 | if (!s->slice_params_buf) { |
946 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "slice params buffer allocation failure\n"); | |
947 | ✗ | s->slice_params_num_buf = 0; | |
948 | ✗ | return AVERROR(ENOMEM); | |
949 | } | ||
950 | 68 | s->slice_params_num_buf = s->num_x * s->num_y; | |
951 | } | ||
952 | 229 | slices = s->slice_params_buf; | |
953 | |||
954 | /* 8 becacuse that's how much the golomb reader could overread junk data | ||
955 | * from another plane/slice at most, and 512 because SIMD */ | ||
956 | 229 | coef_buf_size = subband_coeffs(s, s->num_x - 1, s->num_y - 1, 0, tmp) + 8; | |
957 | 229 | coef_buf_size = (coef_buf_size << (1 + s->pshift)) + 512; | |
958 | |||
959 |
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229 | if (s->threads_num_buf != avctx->thread_count || |
960 |
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161 | s->thread_buf_size != coef_buf_size) { |
961 | 68 | s->threads_num_buf = avctx->thread_count; | |
962 | 68 | s->thread_buf_size = coef_buf_size; | |
963 | 68 | s->thread_buf = av_realloc_f(s->thread_buf, avctx->thread_count, s->thread_buf_size); | |
964 |
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68 | if (!s->thread_buf) { |
965 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "thread buffer allocation failure\n"); | |
966 | ✗ | return AVERROR(ENOMEM); | |
967 | } | ||
968 | } | ||
969 | |||
970 | 229 | align_get_bits(&s->gb); | |
971 | /*[DIRAC_STD] 13.5.2 Slices. slice(sx,sy) */ | ||
972 | 229 | buf = s->gb.buffer + get_bits_count(&s->gb)/8; | |
973 | 229 | bufsize = get_bits_left(&s->gb); | |
974 | |||
975 |
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229 | if (s->hq_picture) { |
976 | int i; | ||
977 | |||
978 |
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3762 | for (slice_y = 0; bufsize > 0 && slice_y < s->num_y; slice_y++) { |
979 |
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42768 | for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) { |
980 | 39204 | bytes = s->highquality.prefix_bytes + 1; | |
981 |
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156816 | for (i = 0; i < 3; i++) { |
982 |
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117612 | if (bytes <= bufsize/8) |
983 | 117612 | bytes += buf[bytes] * s->highquality.size_scaler + 1; | |
984 | } | ||
985 |
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39204 | if (bytes >= INT_MAX || bytes*8 > bufsize) { |
986 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "too many bytes\n"); | |
987 | ✗ | return AVERROR_INVALIDDATA; | |
988 | } | ||
989 | |||
990 | 39204 | slices[slice_num].bytes = bytes; | |
991 | 39204 | slices[slice_num].slice_x = slice_x; | |
992 | 39204 | slices[slice_num].slice_y = slice_y; | |
993 | 39204 | init_get_bits(&slices[slice_num].gb, buf, bufsize); | |
994 | 39204 | slice_num++; | |
995 | |||
996 | 39204 | buf += bytes; | |
997 |
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39204 | if (bufsize/8 >= bytes) |
998 | 39204 | bufsize -= bytes*8; | |
999 | else | ||
1000 | ✗ | bufsize = 0; | |
1001 | } | ||
1002 | } | ||
1003 | |||
1004 |
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198 | if (s->num_x*s->num_y != slice_num) { |
1005 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "too few slices\n"); | |
1006 | ✗ | return AVERROR_INVALIDDATA; | |
1007 | } | ||
1008 | |||
1009 | 198 | avctx->execute2(avctx, decode_hq_slice_row, slices, NULL, s->num_y); | |
1010 | } else { | ||
1011 |
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496 | for (slice_y = 0; bufsize > 0 && slice_y < s->num_y; slice_y++) { |
1012 |
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9765 | for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) { |
1013 | 9300 | bytes = (slice_num+1) * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den | |
1014 | 9300 | - slice_num * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den; | |
1015 |
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9300 | if (bytes >= INT_MAX || bytes*8 > bufsize) { |
1016 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "too many bytes\n"); | |
1017 | ✗ | return AVERROR_INVALIDDATA; | |
1018 | } | ||
1019 | 9300 | slices[slice_num].bytes = bytes; | |
1020 | 9300 | slices[slice_num].slice_x = slice_x; | |
1021 | 9300 | slices[slice_num].slice_y = slice_y; | |
1022 | 9300 | init_get_bits(&slices[slice_num].gb, buf, bufsize); | |
1023 | 9300 | slice_num++; | |
1024 | |||
1025 | 9300 | buf += bytes; | |
1026 |
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9300 | if (bufsize/8 >= bytes) |
1027 | 9300 | bufsize -= bytes*8; | |
1028 | else | ||
1029 | ✗ | bufsize = 0; | |
1030 | } | ||
1031 | } | ||
1032 | 31 | avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num, | |
1033 | sizeof(DiracSlice)); /* [DIRAC_STD] 13.5.2 Slices */ | ||
1034 | } | ||
1035 | |||
1036 |
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229 | if (s->dc_prediction) { |
1037 |
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31 | if (s->pshift) { |
1038 | ✗ | intra_dc_prediction_10(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */ | |
1039 | ✗ | intra_dc_prediction_10(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */ | |
1040 | ✗ | intra_dc_prediction_10(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */ | |
1041 | } else { | ||
1042 | 31 | intra_dc_prediction_8(&s->plane[0].band[0][0]); | |
1043 | 31 | intra_dc_prediction_8(&s->plane[1].band[0][0]); | |
1044 | 31 | intra_dc_prediction_8(&s->plane[2].band[0][0]); | |
1045 | } | ||
1046 | } | ||
1047 | |||
1048 | 229 | return 0; | |
1049 | } | ||
1050 | |||
1051 | 260 | static void init_planes(DiracContext *s) | |
1052 | { | ||
1053 | int i, w, h, level, orientation; | ||
1054 | |||
1055 |
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1040 | for (i = 0; i < 3; i++) { |
1056 | 780 | Plane *p = &s->plane[i]; | |
1057 | |||
1058 |
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780 | p->width = s->seq.width >> (i ? s->chroma_x_shift : 0); |
1059 |
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780 | p->height = s->seq.height >> (i ? s->chroma_y_shift : 0); |
1060 | 780 | p->idwt.width = w = CALC_PADDING(p->width , s->wavelet_depth); | |
1061 | 780 | p->idwt.height = h = CALC_PADDING(p->height, s->wavelet_depth); | |
1062 | 780 | p->idwt.stride = FFALIGN(p->idwt.width, 8) << (1 + s->pshift); | |
1063 | |||
1064 |
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3714 | for (level = s->wavelet_depth-1; level >= 0; level--) { |
1065 | 2934 | w = w>>1; | |
1066 | 2934 | h = h>>1; | |
1067 |
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12516 | for (orientation = !!level; orientation < 4; orientation++) { |
1068 | 9582 | SubBand *b = &p->band[level][orientation]; | |
1069 | |||
1070 | 9582 | b->pshift = s->pshift; | |
1071 | 9582 | b->ibuf = p->idwt.buf; | |
1072 | 9582 | b->level = level; | |
1073 | 9582 | b->stride = p->idwt.stride << (s->wavelet_depth - level); | |
1074 | 9582 | b->width = w; | |
1075 | 9582 | b->height = h; | |
1076 | 9582 | b->orientation = orientation; | |
1077 | |||
1078 |
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9582 | if (orientation & 1) |
1079 | 5868 | b->ibuf += w << (1+b->pshift); | |
1080 |
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9582 | if (orientation > 1) |
1081 | 5868 | b->ibuf += (b->stride>>1); | |
1082 | |||
1083 |
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9582 | if (level) |
1084 | 6462 | b->parent = &p->band[level-1][orientation]; | |
1085 | } | ||
1086 | } | ||
1087 | |||
1088 |
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780 | if (i > 0) { |
1089 | 520 | p->xblen = s->plane[0].xblen >> s->chroma_x_shift; | |
1090 | 520 | p->yblen = s->plane[0].yblen >> s->chroma_y_shift; | |
1091 | 520 | p->xbsep = s->plane[0].xbsep >> s->chroma_x_shift; | |
1092 | 520 | p->ybsep = s->plane[0].ybsep >> s->chroma_y_shift; | |
1093 | } | ||
1094 | |||
1095 | 780 | p->xoffset = (p->xblen - p->xbsep)/2; | |
1096 | 780 | p->yoffset = (p->yblen - p->ybsep)/2; | |
1097 | } | ||
1098 | 260 | } | |
1099 | |||
1100 | /** | ||
1101 | * Unpack the motion compensation parameters | ||
1102 | * Dirac Specification -> | ||
1103 | * 11.2 Picture prediction data. picture_prediction() | ||
1104 | */ | ||
1105 | 29 | static int dirac_unpack_prediction_parameters(DiracContext *s) | |
1106 | { | ||
1107 | static const uint8_t default_blen[] = { 4, 12, 16, 24 }; | ||
1108 | |||
1109 | 29 | GetBitContext *gb = &s->gb; | |
1110 | unsigned idx, ref; | ||
1111 | |||
1112 | 29 | align_get_bits(gb); | |
1113 | /* [DIRAC_STD] 11.2.2 Block parameters. block_parameters() */ | ||
1114 | /* Luma and Chroma are equal. 11.2.3 */ | ||
1115 | 29 | idx = get_interleaved_ue_golomb(gb); /* [DIRAC_STD] index */ | |
1116 | |||
1117 |
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29 | if (idx > 4) { |
1118 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Block prediction index too high\n"); | |
1119 | ✗ | return AVERROR_INVALIDDATA; | |
1120 | } | ||
1121 | |||
1122 |
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29 | if (idx == 0) { |
1123 | 29 | s->plane[0].xblen = get_interleaved_ue_golomb(gb); | |
1124 | 29 | s->plane[0].yblen = get_interleaved_ue_golomb(gb); | |
1125 | 29 | s->plane[0].xbsep = get_interleaved_ue_golomb(gb); | |
1126 | 29 | s->plane[0].ybsep = get_interleaved_ue_golomb(gb); | |
1127 | } else { | ||
1128 | /*[DIRAC_STD] preset_block_params(index). Table 11.1 */ | ||
1129 | ✗ | s->plane[0].xblen = default_blen[idx-1]; | |
1130 | ✗ | s->plane[0].yblen = default_blen[idx-1]; | |
1131 | ✗ | s->plane[0].xbsep = 4 * idx; | |
1132 | ✗ | s->plane[0].ybsep = 4 * idx; | |
1133 | } | ||
1134 | /*[DIRAC_STD] 11.2.4 motion_data_dimensions() | ||
1135 | Calculated in function dirac_unpack_block_motion_data */ | ||
1136 | |||
1137 |
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29 | if (s->plane[0].xblen % (1 << s->chroma_x_shift) != 0 || |
1138 |
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29 | s->plane[0].yblen % (1 << s->chroma_y_shift) != 0 || |
1139 |
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29 | !s->plane[0].xblen || !s->plane[0].yblen) { |
1140 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
1141 | "invalid x/y block length (%d/%d) for x/y chroma shift (%d/%d)\n", | ||
1142 | ✗ | s->plane[0].xblen, s->plane[0].yblen, s->chroma_x_shift, s->chroma_y_shift); | |
1143 | ✗ | return AVERROR_INVALIDDATA; | |
1144 | } | ||
1145 |
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29 | if (!s->plane[0].xbsep || !s->plane[0].ybsep || s->plane[0].xbsep < s->plane[0].xblen/2 || s->plane[0].ybsep < s->plane[0].yblen/2) { |
1146 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Block separation too small\n"); | |
1147 | ✗ | return AVERROR_INVALIDDATA; | |
1148 | } | ||
1149 |
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29 | if (s->plane[0].xbsep > s->plane[0].xblen || s->plane[0].ybsep > s->plane[0].yblen) { |
1150 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Block separation greater than size\n"); | |
1151 | ✗ | return AVERROR_INVALIDDATA; | |
1152 | } | ||
1153 |
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29 | if (FFMAX(s->plane[0].xblen, s->plane[0].yblen) > MAX_BLOCKSIZE) { |
1154 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Unsupported large block size\n"); | |
1155 | ✗ | return AVERROR_PATCHWELCOME; | |
1156 | } | ||
1157 | |||
1158 | /*[DIRAC_STD] 11.2.5 Motion vector precision. motion_vector_precision() | ||
1159 | Read motion vector precision */ | ||
1160 | 29 | s->mv_precision = get_interleaved_ue_golomb(gb); | |
1161 |
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29 | if (s->mv_precision > 3) { |
1162 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "MV precision finer than eighth-pel\n"); | |
1163 | ✗ | return AVERROR_INVALIDDATA; | |
1164 | } | ||
1165 | |||
1166 | /*[DIRAC_STD] 11.2.6 Global motion. global_motion() | ||
1167 | Read the global motion compensation parameters */ | ||
1168 | 29 | s->globalmc_flag = get_bits1(gb); | |
1169 |
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29 | if (s->globalmc_flag) { |
1170 | ✗ | memset(s->globalmc, 0, sizeof(s->globalmc)); | |
1171 | /* [DIRAC_STD] pan_tilt(gparams) */ | ||
1172 | ✗ | for (ref = 0; ref < s->num_refs; ref++) { | |
1173 | ✗ | if (get_bits1(gb)) { | |
1174 | ✗ | s->globalmc[ref].pan_tilt[0] = dirac_get_se_golomb(gb); | |
1175 | ✗ | s->globalmc[ref].pan_tilt[1] = dirac_get_se_golomb(gb); | |
1176 | } | ||
1177 | /* [DIRAC_STD] zoom_rotate_shear(gparams) | ||
1178 | zoom/rotation/shear parameters */ | ||
1179 | ✗ | if (get_bits1(gb)) { | |
1180 | ✗ | s->globalmc[ref].zrs_exp = get_interleaved_ue_golomb(gb); | |
1181 | ✗ | s->globalmc[ref].zrs[0][0] = dirac_get_se_golomb(gb); | |
1182 | ✗ | s->globalmc[ref].zrs[0][1] = dirac_get_se_golomb(gb); | |
1183 | ✗ | s->globalmc[ref].zrs[1][0] = dirac_get_se_golomb(gb); | |
1184 | ✗ | s->globalmc[ref].zrs[1][1] = dirac_get_se_golomb(gb); | |
1185 | } else { | ||
1186 | ✗ | s->globalmc[ref].zrs[0][0] = 1; | |
1187 | ✗ | s->globalmc[ref].zrs[1][1] = 1; | |
1188 | } | ||
1189 | /* [DIRAC_STD] perspective(gparams) */ | ||
1190 | ✗ | if (get_bits1(gb)) { | |
1191 | ✗ | s->globalmc[ref].perspective_exp = get_interleaved_ue_golomb(gb); | |
1192 | ✗ | s->globalmc[ref].perspective[0] = dirac_get_se_golomb(gb); | |
1193 | ✗ | s->globalmc[ref].perspective[1] = dirac_get_se_golomb(gb); | |
1194 | } | ||
1195 | ✗ | if (s->globalmc[ref].perspective_exp + (uint64_t)s->globalmc[ref].zrs_exp > 30) { | |
1196 | ✗ | return AVERROR_INVALIDDATA; | |
1197 | } | ||
1198 | |||
1199 | } | ||
1200 | } | ||
1201 | |||
1202 | /*[DIRAC_STD] 11.2.7 Picture prediction mode. prediction_mode() | ||
1203 | Picture prediction mode, not currently used. */ | ||
1204 |
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29 | if (get_interleaved_ue_golomb(gb)) { |
1205 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Unknown picture prediction mode\n"); | |
1206 | ✗ | return AVERROR_INVALIDDATA; | |
1207 | } | ||
1208 | |||
1209 | /* [DIRAC_STD] 11.2.8 Reference picture weight. reference_picture_weights() | ||
1210 | just data read, weight calculation will be done later on. */ | ||
1211 | 29 | s->weight_log2denom = 1; | |
1212 | 29 | s->weight[0] = 1; | |
1213 | 29 | s->weight[1] = 1; | |
1214 | |||
1215 |
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29 | if (get_bits1(gb)) { |
1216 | ✗ | s->weight_log2denom = get_interleaved_ue_golomb(gb); | |
1217 | ✗ | if (s->weight_log2denom < 1 || s->weight_log2denom > 8) { | |
1218 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "weight_log2denom unsupported or invalid\n"); | |
1219 | ✗ | s->weight_log2denom = 1; | |
1220 | ✗ | return AVERROR_INVALIDDATA; | |
1221 | } | ||
1222 | ✗ | s->weight[0] = dirac_get_se_golomb(gb); | |
1223 | ✗ | if (s->num_refs == 2) | |
1224 | ✗ | s->weight[1] = dirac_get_se_golomb(gb); | |
1225 | } | ||
1226 | 29 | return 0; | |
1227 | } | ||
1228 | |||
1229 | /** | ||
1230 | * Dirac Specification -> | ||
1231 | * 11.3 Wavelet transform data. wavelet_transform() | ||
1232 | */ | ||
1233 | 260 | static int dirac_unpack_idwt_params(DiracContext *s) | |
1234 | { | ||
1235 | 260 | GetBitContext *gb = &s->gb; | |
1236 | int i, level; | ||
1237 | unsigned tmp; | ||
1238 | |||
1239 | #define CHECKEDREAD(dst, cond, errmsg) \ | ||
1240 | tmp = get_interleaved_ue_golomb(gb); \ | ||
1241 | if (cond) { \ | ||
1242 | av_log(s->avctx, AV_LOG_ERROR, errmsg); \ | ||
1243 | return AVERROR_INVALIDDATA; \ | ||
1244 | }\ | ||
1245 | dst = tmp; | ||
1246 | |||
1247 | 260 | align_get_bits(gb); | |
1248 | |||
1249 |
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260 | s->zero_res = s->num_refs ? get_bits1(gb) : 0; |
1250 |
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260 | if (s->zero_res) |
1251 | ✗ | return 0; | |
1252 | |||
1253 | /*[DIRAC_STD] 11.3.1 Transform parameters. transform_parameters() */ | ||
1254 |
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260 | CHECKEDREAD(s->wavelet_idx, tmp > 6, "wavelet_idx is too big\n") |
1255 | |||
1256 |
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260 | CHECKEDREAD(s->wavelet_depth, tmp > MAX_DWT_LEVELS || tmp < 1, "invalid number of DWT decompositions\n") |
1257 | |||
1258 |
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260 | if (!s->low_delay) { |
1259 | /* Codeblock parameters (core syntax only) */ | ||
1260 |
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31 | if (get_bits1(gb)) { |
1261 |
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155 | for (i = 0; i <= s->wavelet_depth; i++) { |
1262 |
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124 | CHECKEDREAD(s->codeblock[i].width , tmp < 1 || tmp > (s->avctx->width >>s->wavelet_depth-i), "codeblock width invalid\n") |
1263 |
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124 | CHECKEDREAD(s->codeblock[i].height, tmp < 1 || tmp > (s->avctx->height>>s->wavelet_depth-i), "codeblock height invalid\n") |
1264 | } | ||
1265 | |||
1266 |
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31 | CHECKEDREAD(s->codeblock_mode, tmp > 1, "unknown codeblock mode\n") |
1267 | } | ||
1268 | else { | ||
1269 | ✗ | for (i = 0; i <= s->wavelet_depth; i++) | |
1270 | ✗ | s->codeblock[i].width = s->codeblock[i].height = 1; | |
1271 | } | ||
1272 | } | ||
1273 | else { | ||
1274 | 229 | s->num_x = get_interleaved_ue_golomb(gb); | |
1275 | 229 | s->num_y = get_interleaved_ue_golomb(gb); | |
1276 |
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229 | if (s->num_x * s->num_y == 0 || s->num_x * (uint64_t)s->num_y > INT_MAX || |
1277 |
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229 | s->num_x * (uint64_t)s->avctx->width > INT_MAX || |
1278 |
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229 | s->num_y * (uint64_t)s->avctx->height > INT_MAX || |
1279 |
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229 | s->num_x > s->avctx->width || |
1280 |
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229 | s->num_y > s->avctx->height |
1281 | ) { | ||
1282 | ✗ | av_log(s->avctx,AV_LOG_ERROR,"Invalid numx/y\n"); | |
1283 | ✗ | s->num_x = s->num_y = 0; | |
1284 | ✗ | return AVERROR_INVALIDDATA; | |
1285 | } | ||
1286 |
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229 | if (s->ld_picture) { |
1287 | 31 | s->lowdelay.bytes.num = get_interleaved_ue_golomb(gb); | |
1288 | 31 | s->lowdelay.bytes.den = get_interleaved_ue_golomb(gb); | |
1289 |
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31 | if (s->lowdelay.bytes.den <= 0) { |
1290 | ✗ | av_log(s->avctx,AV_LOG_ERROR,"Invalid lowdelay.bytes.den\n"); | |
1291 | ✗ | return AVERROR_INVALIDDATA; | |
1292 | } | ||
1293 |
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198 | } else if (s->hq_picture) { |
1294 | 198 | s->highquality.prefix_bytes = get_interleaved_ue_golomb(gb); | |
1295 | 198 | s->highquality.size_scaler = get_interleaved_ue_golomb(gb); | |
1296 |
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198 | if (s->highquality.prefix_bytes >= INT_MAX / 8) { |
1297 | ✗ | av_log(s->avctx,AV_LOG_ERROR,"too many prefix bytes\n"); | |
1298 | ✗ | return AVERROR_INVALIDDATA; | |
1299 | } | ||
1300 | } | ||
1301 | |||
1302 | /* [DIRAC_STD] 11.3.5 Quantisation matrices (low-delay syntax). quant_matrix() */ | ||
1303 |
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229 | if (get_bits1(gb)) { |
1304 | ✗ | av_log(s->avctx,AV_LOG_DEBUG,"Low Delay: Has Custom Quantization Matrix!\n"); | |
1305 | /* custom quantization matrix */ | ||
1306 | ✗ | for (level = 0; level < s->wavelet_depth; level++) { | |
1307 | ✗ | for (i = !!level; i < 4; i++) { | |
1308 | ✗ | s->lowdelay.quant[level][i] = get_interleaved_ue_golomb(gb); | |
1309 | } | ||
1310 | } | ||
1311 | } else { | ||
1312 |
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229 | if (s->wavelet_depth > 4) { |
1313 | ✗ | av_log(s->avctx,AV_LOG_ERROR,"Mandatory custom low delay matrix missing for depth %d\n", s->wavelet_depth); | |
1314 | ✗ | return AVERROR_INVALIDDATA; | |
1315 | } | ||
1316 | /* default quantization matrix */ | ||
1317 |
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1114 | for (level = 0; level < s->wavelet_depth; level++) |
1318 |
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4425 | for (i = 0; i < 4; i++) { |
1319 | 3540 | s->lowdelay.quant[level][i] = ff_dirac_default_qmat[s->wavelet_idx][level][i]; | |
1320 | /* haar with no shift differs for different depths */ | ||
1321 |
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3540 | if (s->wavelet_idx == 3) |
1322 | ✗ | s->lowdelay.quant[level][i] += 4*(s->wavelet_depth-1 - level); | |
1323 | } | ||
1324 | } | ||
1325 | } | ||
1326 | 260 | return 0; | |
1327 | } | ||
1328 | |||
1329 | 2320 | static inline int pred_sbsplit(uint8_t *sbsplit, int stride, int x, int y) | |
1330 | { | ||
1331 | static const uint8_t avgsplit[7] = { 0, 0, 1, 1, 1, 2, 2 }; | ||
1332 | |||
1333 |
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2320 | if (!(x|y)) |
1334 | 29 | return 0; | |
1335 |
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2291 | else if (!y) |
1336 | 261 | return sbsplit[-1]; | |
1337 |
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2030 | else if (!x) |
1338 | 203 | return sbsplit[-stride]; | |
1339 | |||
1340 | 1827 | return avgsplit[sbsplit[-1] + sbsplit[-stride] + sbsplit[-stride-1]]; | |
1341 | } | ||
1342 | |||
1343 | 8493 | static inline int pred_block_mode(DiracBlock *block, int stride, int x, int y, int refmask) | |
1344 | { | ||
1345 | int pred; | ||
1346 | |||
1347 |
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8493 | if (!(x|y)) |
1348 | 57 | return 0; | |
1349 |
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8436 | else if (!y) |
1350 | 545 | return block[-1].ref & refmask; | |
1351 |
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7891 | else if (!x) |
1352 | 399 | return block[-stride].ref & refmask; | |
1353 | |||
1354 | /* return the majority */ | ||
1355 | 7492 | pred = (block[-1].ref & refmask) + (block[-stride].ref & refmask) + (block[-stride-1].ref & refmask); | |
1356 | 7492 | return (pred >> 1) & refmask; | |
1357 | } | ||
1358 | |||
1359 | 754 | static inline void pred_block_dc(DiracBlock *block, int stride, int x, int y) | |
1360 | { | ||
1361 | 754 | int i, n = 0; | |
1362 | |||
1363 | 754 | memset(block->u.dc, 0, sizeof(block->u.dc)); | |
1364 | |||
1365 |
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754 | if (x && !(block[-1].ref & 3)) { |
1366 |
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1752 | for (i = 0; i < 3; i++) |
1367 | 1314 | block->u.dc[i] += block[-1].u.dc[i]; | |
1368 | 438 | n++; | |
1369 | } | ||
1370 | |||
1371 |
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754 | if (y && !(block[-stride].ref & 3)) { |
1372 |
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1616 | for (i = 0; i < 3; i++) |
1373 | 1212 | block->u.dc[i] += block[-stride].u.dc[i]; | |
1374 | 404 | n++; | |
1375 | } | ||
1376 | |||
1377 |
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754 | if (x && y && !(block[-1-stride].ref & 3)) { |
1378 |
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1372 | for (i = 0; i < 3; i++) |
1379 | 1029 | block->u.dc[i] += block[-1-stride].u.dc[i]; | |
1380 | 343 | n++; | |
1381 | } | ||
1382 | |||
1383 |
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754 | if (n == 2) { |
1384 |
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880 | for (i = 0; i < 3; i++) |
1385 | 660 | block->u.dc[i] = (block->u.dc[i]+1)>>1; | |
1386 |
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534 | } else if (n == 3) { |
1387 |
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656 | for (i = 0; i < 3; i++) |
1388 | 492 | block->u.dc[i] = divide3(block->u.dc[i]); | |
1389 | } | ||
1390 | 754 | } | |
1391 | |||
1392 | 5951 | static inline void pred_mv(DiracBlock *block, int stride, int x, int y, int ref) | |
1393 | { | ||
1394 | int16_t *pred[3]; | ||
1395 | 5951 | int refmask = ref+1; | |
1396 | 5951 | int mask = refmask | DIRAC_REF_MASK_GLOBAL; /* exclude gmc blocks */ | |
1397 | 5951 | int n = 0; | |
1398 | |||
1399 |
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5951 | if (x && (block[-1].ref & mask) == refmask) |
1400 | 4890 | pred[n++] = block[-1].u.mv[ref]; | |
1401 | |||
1402 |
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5951 | if (y && (block[-stride].ref & mask) == refmask) |
1403 | 4719 | pred[n++] = block[-stride].u.mv[ref]; | |
1404 | |||
1405 |
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5951 | if (x && y && (block[-stride-1].ref & mask) == refmask) |
1406 | 4313 | pred[n++] = block[-stride-1].u.mv[ref]; | |
1407 | |||
1408 |
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5951 | switch (n) { |
1409 | 304 | case 0: | |
1410 | 304 | block->u.mv[ref][0] = 0; | |
1411 | 304 | block->u.mv[ref][1] = 0; | |
1412 | 304 | break; | |
1413 | 1266 | case 1: | |
1414 | 1266 | block->u.mv[ref][0] = pred[0][0]; | |
1415 | 1266 | block->u.mv[ref][1] = pred[0][1]; | |
1416 | 1266 | break; | |
1417 | 487 | case 2: | |
1418 | 487 | block->u.mv[ref][0] = (pred[0][0] + pred[1][0] + 1) >> 1; | |
1419 | 487 | block->u.mv[ref][1] = (pred[0][1] + pred[1][1] + 1) >> 1; | |
1420 | 487 | break; | |
1421 | 3894 | case 3: | |
1422 | 3894 | block->u.mv[ref][0] = mid_pred(pred[0][0], pred[1][0], pred[2][0]); | |
1423 | 3894 | block->u.mv[ref][1] = mid_pred(pred[0][1], pred[1][1], pred[2][1]); | |
1424 | 3894 | break; | |
1425 | } | ||
1426 | 5951 | } | |
1427 | |||
1428 | ✗ | static void global_mv(DiracContext *s, DiracBlock *block, int x, int y, int ref) | |
1429 | { | ||
1430 | ✗ | int ez = s->globalmc[ref].zrs_exp; | |
1431 | ✗ | int ep = s->globalmc[ref].perspective_exp; | |
1432 | ✗ | int (*A)[2] = s->globalmc[ref].zrs; | |
1433 | ✗ | int *b = s->globalmc[ref].pan_tilt; | |
1434 | ✗ | int *c = s->globalmc[ref].perspective; | |
1435 | |||
1436 | ✗ | int64_t m = (1<<ep) - (c[0]*(int64_t)x + c[1]*(int64_t)y); | |
1437 | ✗ | int64_t mx = m * (uint64_t)((A[0][0] * (int64_t)x + A[0][1]*(int64_t)y) + (1LL<<ez) * b[0]); | |
1438 | ✗ | int64_t my = m * (uint64_t)((A[1][0] * (int64_t)x + A[1][1]*(int64_t)y) + (1LL<<ez) * b[1]); | |
1439 | |||
1440 | ✗ | block->u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep); | |
1441 | ✗ | block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep); | |
1442 | ✗ | } | |
1443 | |||
1444 | 4348 | static void decode_block_params(DiracContext *s, DiracArith arith[8], DiracBlock *block, | |
1445 | int stride, int x, int y) | ||
1446 | { | ||
1447 | int i; | ||
1448 | |||
1449 | 4348 | block->ref = pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF1); | |
1450 | 4348 | block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF1); | |
1451 | |||
1452 |
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4348 | if (s->num_refs == 2) { |
1453 | 4145 | block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF2); | |
1454 | 4145 | block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF2) << 1; | |
1455 | } | ||
1456 | |||
1457 |
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4348 | if (!block->ref) { |
1458 | 754 | pred_block_dc(block, stride, x, y); | |
1459 |
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3016 | for (i = 0; i < 3; i++) |
1460 | 2262 | block->u.dc[i] += (unsigned)dirac_get_arith_int(arith+1+i, CTX_DC_F1, CTX_DC_DATA); | |
1461 | 754 | return; | |
1462 | } | ||
1463 | |||
1464 |
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3594 | if (s->globalmc_flag) { |
1465 | ✗ | block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_GLOBAL); | |
1466 | ✗ | block->ref ^= dirac_get_arith_bit(arith, CTX_GLOBAL_BLOCK) << 2; | |
1467 | } | ||
1468 | |||
1469 |
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10636 | for (i = 0; i < s->num_refs; i++) |
1470 |
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7042 | if (block->ref & (i+1)) { |
1471 |
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5951 | if (block->ref & DIRAC_REF_MASK_GLOBAL) { |
1472 | ✗ | global_mv(s, block, x, y, i); | |
1473 | } else { | ||
1474 | 5951 | pred_mv(block, stride, x, y, i); | |
1475 | 5951 | block->u.mv[i][0] += (unsigned)dirac_get_arith_int(arith + 4 + 2 * i, CTX_MV_F1, CTX_MV_DATA); | |
1476 | 5951 | block->u.mv[i][1] += (unsigned)dirac_get_arith_int(arith + 5 + 2 * i, CTX_MV_F1, CTX_MV_DATA); | |
1477 | } | ||
1478 | } | ||
1479 | } | ||
1480 | |||
1481 | /** | ||
1482 | * Copies the current block to the other blocks covered by the current superblock split mode | ||
1483 | */ | ||
1484 | 4348 | static void propagate_block_data(DiracBlock *block, int stride, int size) | |
1485 | { | ||
1486 | int x, y; | ||
1487 | 4348 | DiracBlock *dst = block; | |
1488 | |||
1489 |
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11112 | for (x = 1; x < size; x++) |
1490 | 6764 | dst[x] = *block; | |
1491 | |||
1492 |
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11112 | for (y = 1; y < size; y++) { |
1493 | 6764 | dst += stride; | |
1494 |
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32772 | for (x = 0; x < size; x++) |
1495 | 26008 | dst[x] = *block; | |
1496 | } | ||
1497 | 4348 | } | |
1498 | |||
1499 | /** | ||
1500 | * Dirac Specification -> | ||
1501 | * 12. Block motion data syntax | ||
1502 | */ | ||
1503 | 29 | static int dirac_unpack_block_motion_data(DiracContext *s) | |
1504 | { | ||
1505 | 29 | GetBitContext *gb = &s->gb; | |
1506 | 29 | uint8_t *sbsplit = s->sbsplit; | |
1507 | int i, x, y, q, p; | ||
1508 | DiracArith arith[8]; | ||
1509 | |||
1510 | 29 | align_get_bits(gb); | |
1511 | |||
1512 | /* [DIRAC_STD] 11.2.4 and 12.2.1 Number of blocks and superblocks */ | ||
1513 | 29 | s->sbwidth = DIVRNDUP(s->seq.width, 4*s->plane[0].xbsep); | |
1514 | 29 | s->sbheight = DIVRNDUP(s->seq.height, 4*s->plane[0].ybsep); | |
1515 | 29 | s->blwidth = 4 * s->sbwidth; | |
1516 | 29 | s->blheight = 4 * s->sbheight; | |
1517 | |||
1518 | /* [DIRAC_STD] 12.3.1 Superblock splitting modes. superblock_split_modes() | ||
1519 | decode superblock split modes */ | ||
1520 | 29 | ff_dirac_init_arith_decoder(arith, gb, get_interleaved_ue_golomb(gb)); /* get_interleaved_ue_golomb(gb) is the length */ | |
1521 |
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261 | for (y = 0; y < s->sbheight; y++) { |
1522 |
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|
2552 | for (x = 0; x < s->sbwidth; x++) { |
1523 | 2320 | unsigned int split = dirac_get_arith_uint(arith, CTX_SB_F1, CTX_SB_DATA); | |
1524 |
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2320 | if (split > 2) |
1525 | ✗ | return AVERROR_INVALIDDATA; | |
1526 | 2320 | sbsplit[x] = (split + pred_sbsplit(sbsplit+x, s->sbwidth, x, y)) % 3; | |
1527 | } | ||
1528 | 232 | sbsplit += s->sbwidth; | |
1529 | } | ||
1530 | |||
1531 | /* setup arith decoding */ | ||
1532 | 29 | ff_dirac_init_arith_decoder(arith, gb, get_interleaved_ue_golomb(gb)); | |
1533 |
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|
86 | for (i = 0; i < s->num_refs; i++) { |
1534 | 57 | ff_dirac_init_arith_decoder(arith + 4 + 2 * i, gb, get_interleaved_ue_golomb(gb)); | |
1535 | 57 | ff_dirac_init_arith_decoder(arith + 5 + 2 * i, gb, get_interleaved_ue_golomb(gb)); | |
1536 | } | ||
1537 |
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116 | for (i = 0; i < 3; i++) |
1538 | 87 | ff_dirac_init_arith_decoder(arith+1+i, gb, get_interleaved_ue_golomb(gb)); | |
1539 | |||
1540 |
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261 | for (y = 0; y < s->sbheight; y++) |
1541 |
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|
2552 | for (x = 0; x < s->sbwidth; x++) { |
1542 | 2320 | int blkcnt = 1 << s->sbsplit[y * s->sbwidth + x]; | |
1543 | 2320 | int step = 4 >> s->sbsplit[y * s->sbwidth + x]; | |
1544 | |||
1545 |
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|
5098 | for (q = 0; q < blkcnt; q++) |
1546 |
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|
7126 | for (p = 0; p < blkcnt; p++) { |
1547 | 4348 | int bx = 4 * x + p*step; | |
1548 | 4348 | int by = 4 * y + q*step; | |
1549 | 4348 | DiracBlock *block = &s->blmotion[by*s->blwidth + bx]; | |
1550 | 4348 | decode_block_params(s, arith, block, s->blwidth, bx, by); | |
1551 | 4348 | propagate_block_data(block, s->blwidth, step); | |
1552 | } | ||
1553 | } | ||
1554 | |||
1555 |
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259 | for (i = 0; i < 4 + 2*s->num_refs; i++) { |
1556 |
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230 | if (arith[i].error) |
1557 | ✗ | return arith[i].error; | |
1558 | } | ||
1559 | |||
1560 | 29 | return 0; | |
1561 | } | ||
1562 | |||
1563 | 72384 | static int weight(int i, int blen, int offset) | |
1564 | { | ||
1565 | #define ROLLOFF(i) offset == 1 ? ((i) ? 5 : 3) : \ | ||
1566 | (1 + (6*(i) + offset - 1) / (2*offset - 1)) | ||
1567 | |||
1568 |
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72384 | if (i < 2*offset) |
1569 |
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|
36192 | return ROLLOFF(i); |
1570 |
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|
36192 | else if (i > blen-1 - 2*offset) |
1571 |
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|
36192 | return ROLLOFF(blen-1 - i); |
1572 | ✗ | return 8; | |
1573 | } | ||
1574 | |||
1575 | 8352 | static void init_obmc_weight_row(Plane *p, uint8_t *obmc_weight, int stride, | |
1576 | int left, int right, int wy) | ||
1577 | { | ||
1578 | int x; | ||
1579 |
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|
25056 | for (x = 0; left && x < p->xblen >> 1; x++) |
1580 | 16704 | obmc_weight[x] = wy*8; | |
1581 |
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|
75168 | for (; x < p->xblen >> right; x++) |
1582 | 66816 | obmc_weight[x] = wy*weight(x, p->xblen, p->xoffset); | |
1583 |
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25056 | for (; x < p->xblen; x++) |
1584 | 16704 | obmc_weight[x] = wy*8; | |
1585 |
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|
175392 | for (; x < stride; x++) |
1586 | 167040 | obmc_weight[x] = 0; | |
1587 | 8352 | } | |
1588 | |||
1589 | 783 | static void init_obmc_weight(Plane *p, uint8_t *obmc_weight, int stride, | |
1590 | int left, int right, int top, int bottom) | ||
1591 | { | ||
1592 | int y; | ||
1593 |
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|
2175 | for (y = 0; top && y < p->yblen >> 1; y++) { |
1594 | 1392 | init_obmc_weight_row(p, obmc_weight, stride, left, right, 8); | |
1595 | 1392 | obmc_weight += stride; | |
1596 | } | ||
1597 |
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6351 | for (; y < p->yblen >> bottom; y++) { |
1598 | 5568 | int wy = weight(y, p->yblen, p->yoffset); | |
1599 | 5568 | init_obmc_weight_row(p, obmc_weight, stride, left, right, wy); | |
1600 | 5568 | obmc_weight += stride; | |
1601 | } | ||
1602 |
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2175 | for (; y < p->yblen; y++) { |
1603 | 1392 | init_obmc_weight_row(p, obmc_weight, stride, left, right, 8); | |
1604 | 1392 | obmc_weight += stride; | |
1605 | } | ||
1606 | 783 | } | |
1607 | |||
1608 | 2784 | static void init_obmc_weights(DiracContext *s, Plane *p, int by) | |
1609 | { | ||
1610 | 2784 | int top = !by; | |
1611 | 2784 | int bottom = by == s->blheight-1; | |
1612 | |||
1613 | /* don't bother re-initing for rows 2 to blheight-2, the weights don't change */ | ||
1614 |
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|
2784 | if (top || bottom || by == 1) { |
1615 | 261 | init_obmc_weight(p, s->obmc_weight[0], MAX_BLOCKSIZE, 1, 0, top, bottom); | |
1616 | 261 | init_obmc_weight(p, s->obmc_weight[1], MAX_BLOCKSIZE, 0, 0, top, bottom); | |
1617 | 261 | init_obmc_weight(p, s->obmc_weight[2], MAX_BLOCKSIZE, 0, 1, top, bottom); | |
1618 | } | ||
1619 | 2784 | } | |
1620 | |||
1621 | static const uint8_t epel_weights[4][4][4] = { | ||
1622 | {{ 16, 0, 0, 0 }, | ||
1623 | { 12, 4, 0, 0 }, | ||
1624 | { 8, 8, 0, 0 }, | ||
1625 | { 4, 12, 0, 0 }}, | ||
1626 | {{ 12, 0, 4, 0 }, | ||
1627 | { 9, 3, 3, 1 }, | ||
1628 | { 6, 6, 2, 2 }, | ||
1629 | { 3, 9, 1, 3 }}, | ||
1630 | {{ 8, 0, 8, 0 }, | ||
1631 | { 6, 2, 6, 2 }, | ||
1632 | { 4, 4, 4, 4 }, | ||
1633 | { 2, 6, 2, 6 }}, | ||
1634 | {{ 4, 0, 12, 0 }, | ||
1635 | { 3, 1, 9, 3 }, | ||
1636 | { 2, 2, 6, 6 }, | ||
1637 | { 1, 3, 3, 9 }} | ||
1638 | }; | ||
1639 | |||
1640 | /** | ||
1641 | * For block x,y, determine which of the hpel planes to do bilinear | ||
1642 | * interpolation from and set src[] to the location in each hpel plane | ||
1643 | * to MC from. | ||
1644 | * | ||
1645 | * @return the index of the put_dirac_pixels_tab function to use | ||
1646 | * 0 for 1 plane (fpel,hpel), 1 for 2 planes (qpel), 2 for 4 planes (qpel), and 3 for epel | ||
1647 | */ | ||
1648 | 199452 | static int mc_subpel(DiracContext *s, DiracBlock *block, const uint8_t *src[5], | |
1649 | int x, int y, int ref, int plane) | ||
1650 | { | ||
1651 | 199452 | Plane *p = &s->plane[plane]; | |
1652 | 199452 | uint8_t **ref_hpel = s->ref_pics[ref]->hpel[plane]; | |
1653 | 199452 | int motion_x = block->u.mv[ref][0]; | |
1654 | 199452 | int motion_y = block->u.mv[ref][1]; | |
1655 | 199452 | int mx, my, i, epel, nplanes = 0; | |
1656 | |||
1657 |
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|
199452 | if (plane) { |
1658 | 132968 | motion_x >>= s->chroma_x_shift; | |
1659 | 132968 | motion_y >>= s->chroma_y_shift; | |
1660 | } | ||
1661 | |||
1662 | 199452 | mx = motion_x & ~(-1U << s->mv_precision); | |
1663 | 199452 | my = motion_y & ~(-1U << s->mv_precision); | |
1664 | 199452 | motion_x >>= s->mv_precision; | |
1665 | 199452 | motion_y >>= s->mv_precision; | |
1666 | /* normalize subpel coordinates to epel */ | ||
1667 | /* TODO: template this function? */ | ||
1668 | 199452 | mx <<= 3 - s->mv_precision; | |
1669 | 199452 | my <<= 3 - s->mv_precision; | |
1670 | |||
1671 | 199452 | x += motion_x; | |
1672 | 199452 | y += motion_y; | |
1673 | 199452 | epel = (mx|my)&1; | |
1674 | |||
1675 | /* hpel position */ | ||
1676 |
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|
199452 | if (!((mx|my)&3)) { |
1677 | 199452 | nplanes = 1; | |
1678 | 199452 | src[0] = ref_hpel[(my>>1)+(mx>>2)] + y*p->stride + x; | |
1679 | } else { | ||
1680 | /* qpel or epel */ | ||
1681 | ✗ | nplanes = 4; | |
1682 | ✗ | for (i = 0; i < 4; i++) | |
1683 | ✗ | src[i] = ref_hpel[i] + y*p->stride + x; | |
1684 | |||
1685 | /* if we're interpolating in the right/bottom halves, adjust the planes as needed | ||
1686 | we increment x/y because the edge changes for half of the pixels */ | ||
1687 | ✗ | if (mx > 4) { | |
1688 | ✗ | src[0] += 1; | |
1689 | ✗ | src[2] += 1; | |
1690 | ✗ | x++; | |
1691 | } | ||
1692 | ✗ | if (my > 4) { | |
1693 | ✗ | src[0] += p->stride; | |
1694 | ✗ | src[1] += p->stride; | |
1695 | ✗ | y++; | |
1696 | } | ||
1697 | |||
1698 | /* hpel planes are: | ||
1699 | [0]: F [1]: H | ||
1700 | [2]: V [3]: C */ | ||
1701 | ✗ | if (!epel) { | |
1702 | /* check if we really only need 2 planes since either mx or my is | ||
1703 | a hpel position. (epel weights of 0 handle this there) */ | ||
1704 | ✗ | if (!(mx&3)) { | |
1705 | /* mx == 0: average [0] and [2] | ||
1706 | mx == 4: average [1] and [3] */ | ||
1707 | ✗ | src[!mx] = src[2 + !!mx]; | |
1708 | ✗ | nplanes = 2; | |
1709 | ✗ | } else if (!(my&3)) { | |
1710 | ✗ | src[0] = src[(my>>1) ]; | |
1711 | ✗ | src[1] = src[(my>>1)+1]; | |
1712 | ✗ | nplanes = 2; | |
1713 | } | ||
1714 | } else { | ||
1715 | /* adjust the ordering if needed so the weights work */ | ||
1716 | ✗ | if (mx > 4) { | |
1717 | ✗ | FFSWAP(const uint8_t *, src[0], src[1]); | |
1718 | ✗ | FFSWAP(const uint8_t *, src[2], src[3]); | |
1719 | } | ||
1720 | ✗ | if (my > 4) { | |
1721 | ✗ | FFSWAP(const uint8_t *, src[0], src[2]); | |
1722 | ✗ | FFSWAP(const uint8_t *, src[1], src[3]); | |
1723 | } | ||
1724 | ✗ | src[4] = epel_weights[my&3][mx&3]; | |
1725 | } | ||
1726 | } | ||
1727 | |||
1728 | /* fixme: v/h _edge_pos */ | ||
1729 |
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|
199452 | if (x + p->xblen > p->width +EDGE_WIDTH/2 || |
1730 |
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|
199293 | y + p->yblen > p->height+EDGE_WIDTH/2 || |
1731 |
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|
191702 | x < 0 || y < 0) { |
1732 |
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27830 | for (i = 0; i < nplanes; i++) { |
1733 | 13915 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer[i], src[i], | |
1734 | p->stride, p->stride, | ||
1735 | 13915 | p->xblen, p->yblen, x, y, | |
1736 | 13915 | p->width+EDGE_WIDTH/2, p->height+EDGE_WIDTH/2); | |
1737 | 13915 | src[i] = s->edge_emu_buffer[i]; | |
1738 | } | ||
1739 | } | ||
1740 | 199452 | return (nplanes>>1) + epel; | |
1741 | } | ||
1742 | |||
1743 | 2262 | static void add_dc(uint16_t *dst, int dc, int stride, | |
1744 | uint8_t *obmc_weight, int xblen, int yblen) | ||
1745 | { | ||
1746 | int x, y; | ||
1747 | 2262 | dc += 128; | |
1748 | |||
1749 |
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26390 | for (y = 0; y < yblen; y++) { |
1750 |
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168896 | for (x = 0; x < xblen; x += 2) { |
1751 | 144768 | dst[x ] += dc * obmc_weight[x ]; | |
1752 | 144768 | dst[x+1] += dc * obmc_weight[x+1]; | |
1753 | } | ||
1754 | 24128 | dst += stride; | |
1755 | 24128 | obmc_weight += MAX_BLOCKSIZE; | |
1756 | } | ||
1757 | 2262 | } | |
1758 | |||
1759 | 107880 | static void block_mc(DiracContext *s, DiracBlock *block, | |
1760 | uint16_t *mctmp, uint8_t *obmc_weight, | ||
1761 | int plane, int dstx, int dsty) | ||
1762 | { | ||
1763 | 107880 | Plane *p = &s->plane[plane]; | |
1764 | const uint8_t *src[5]; | ||
1765 | int idx; | ||
1766 | |||
1767 |
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107880 | switch (block->ref&3) { |
1768 | 2262 | case 0: /* DC */ | |
1769 | 2262 | add_dc(mctmp, block->u.dc[plane], p->stride, obmc_weight, p->xblen, p->yblen); | |
1770 | 2262 | return; | |
1771 | 11784 | case 1: | |
1772 | case 2: | ||
1773 | 11784 | idx = mc_subpel(s, block, src, dstx, dsty, (block->ref&3)-1, plane); | |
1774 | 11784 | s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen); | |
1775 |
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11784 | if (s->weight_func) |
1776 | ✗ | s->weight_func(s->mcscratch, p->stride, s->weight_log2denom, | |
1777 | ✗ | s->weight[0] + s->weight[1], p->yblen); | |
1778 | 11784 | break; | |
1779 | 93834 | case 3: | |
1780 | 93834 | idx = mc_subpel(s, block, src, dstx, dsty, 0, plane); | |
1781 | 93834 | s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen); | |
1782 | 93834 | idx = mc_subpel(s, block, src, dstx, dsty, 1, plane); | |
1783 |
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93834 | if (s->biweight_func) { |
1784 | /* fixme: +32 is a quick hack */ | ||
1785 | ✗ | s->put_pixels_tab[idx](s->mcscratch + 32, src, p->stride, p->yblen); | |
1786 | ✗ | s->biweight_func(s->mcscratch, s->mcscratch+32, p->stride, s->weight_log2denom, | |
1787 | ✗ | s->weight[0], s->weight[1], p->yblen); | |
1788 | } else | ||
1789 | 93834 | s->avg_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen); | |
1790 | 93834 | break; | |
1791 | } | ||
1792 | 105618 | s->add_obmc(mctmp, s->mcscratch, p->stride, obmc_weight, p->yblen); | |
1793 | } | ||
1794 | |||
1795 | 2697 | static void mc_row(DiracContext *s, DiracBlock *block, uint16_t *mctmp, int plane, int dsty) | |
1796 | { | ||
1797 | 2697 | Plane *p = &s->plane[plane]; | |
1798 | 2697 | int x, dstx = p->xbsep - p->xoffset; | |
1799 | |||
1800 | 2697 | block_mc(s, block, mctmp, s->obmc_weight[0], plane, -p->xoffset, dsty); | |
1801 | 2697 | mctmp += p->xbsep; | |
1802 | |||
1803 |
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105183 | for (x = 1; x < s->blwidth-1; x++) { |
1804 | 102486 | block_mc(s, block+x, mctmp, s->obmc_weight[1], plane, dstx, dsty); | |
1805 | 102486 | dstx += p->xbsep; | |
1806 | 102486 | mctmp += p->xbsep; | |
1807 | } | ||
1808 | 2697 | block_mc(s, block+x, mctmp, s->obmc_weight[2], plane, dstx, dsty); | |
1809 | 2697 | } | |
1810 | |||
1811 | 87 | static void select_dsp_funcs(DiracContext *s, int width, int height, int xblen, int yblen) | |
1812 | { | ||
1813 | 87 | int idx = 0; | |
1814 |
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|
87 | if (xblen > 8) |
1815 | 29 | idx = 1; | |
1816 |
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87 | if (xblen > 16) |
1817 | ✗ | idx = 2; | |
1818 | |||
1819 | 87 | memcpy(s->put_pixels_tab, s->diracdsp.put_dirac_pixels_tab[idx], sizeof(s->put_pixels_tab)); | |
1820 | 87 | memcpy(s->avg_pixels_tab, s->diracdsp.avg_dirac_pixels_tab[idx], sizeof(s->avg_pixels_tab)); | |
1821 | 87 | s->add_obmc = s->diracdsp.add_dirac_obmc[idx]; | |
1822 |
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87 | if (s->weight_log2denom > 1 || s->weight[0] != 1 || s->weight[1] != 1) { |
1823 | ✗ | s->weight_func = s->diracdsp.weight_dirac_pixels_tab[idx]; | |
1824 | ✗ | s->biweight_func = s->diracdsp.biweight_dirac_pixels_tab[idx]; | |
1825 | } else { | ||
1826 | 87 | s->weight_func = NULL; | |
1827 | 87 | s->biweight_func = NULL; | |
1828 | } | ||
1829 | 87 | } | |
1830 | |||
1831 | 171 | static int interpolate_refplane(DiracContext *s, DiracFrame *ref, int plane, int width, int height) | |
1832 | { | ||
1833 | /* chroma allocates an edge of 8 when subsampled | ||
1834 | which for 4:2:2 means an h edge of 16 and v edge of 8 | ||
1835 | just use 8 for everything for the moment */ | ||
1836 | 171 | int i, edge = EDGE_WIDTH/2; | |
1837 | |||
1838 | 171 | ref->hpel[plane][0] = ref->avframe->data[plane]; | |
1839 | 171 | s->mpvencdsp.draw_edges(ref->hpel[plane][0], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); /* EDGE_TOP | EDGE_BOTTOM values just copied to make it build, this needs to be ensured */ | |
1840 | |||
1841 | /* no need for hpel if we only have fpel vectors */ | ||
1842 |
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171 | if (!s->mv_precision) |
1843 | 171 | return 0; | |
1844 | |||
1845 | ✗ | for (i = 1; i < 4; i++) { | |
1846 | ✗ | if (!ref->hpel_base[plane][i]) | |
1847 | ✗ | ref->hpel_base[plane][i] = av_malloc((height+2*edge) * ref->avframe->linesize[plane] + 32); | |
1848 | ✗ | if (!ref->hpel_base[plane][i]) { | |
1849 | ✗ | return AVERROR(ENOMEM); | |
1850 | } | ||
1851 | /* we need to be 16-byte aligned even for chroma */ | ||
1852 | ✗ | ref->hpel[plane][i] = ref->hpel_base[plane][i] + edge*ref->avframe->linesize[plane] + 16; | |
1853 | } | ||
1854 | |||
1855 | ✗ | if (!ref->interpolated[plane]) { | |
1856 | ✗ | s->diracdsp.dirac_hpel_filter(ref->hpel[plane][1], ref->hpel[plane][2], | |
1857 | ✗ | ref->hpel[plane][3], ref->hpel[plane][0], | |
1858 | ✗ | ref->avframe->linesize[plane], width, height); | |
1859 | ✗ | s->mpvencdsp.draw_edges(ref->hpel[plane][1], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); | |
1860 | ✗ | s->mpvencdsp.draw_edges(ref->hpel[plane][2], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); | |
1861 | ✗ | s->mpvencdsp.draw_edges(ref->hpel[plane][3], ref->avframe->linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); | |
1862 | } | ||
1863 | ✗ | ref->interpolated[plane] = 1; | |
1864 | |||
1865 | ✗ | return 0; | |
1866 | } | ||
1867 | |||
1868 | /** | ||
1869 | * Dirac Specification -> | ||
1870 | * 13.0 Transform data syntax. transform_data() | ||
1871 | */ | ||
1872 | 260 | static int dirac_decode_frame_internal(DiracContext *s) | |
1873 | { | ||
1874 | DWTContext d; | ||
1875 | int y, i, comp, dsty; | ||
1876 | int ret; | ||
1877 | |||
1878 |
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260 | if (s->low_delay) { |
1879 | /* [DIRAC_STD] 13.5.1 low_delay_transform_data() */ | ||
1880 |
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229 | if (!s->hq_picture) { |
1881 |
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124 | for (comp = 0; comp < 3; comp++) { |
1882 | 93 | Plane *p = &s->plane[comp]; | |
1883 | 93 | memset(p->idwt.buf, 0, p->idwt.stride * p->idwt.height); | |
1884 | } | ||
1885 | } | ||
1886 |
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229 | if (!s->zero_res) { |
1887 |
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229 | if ((ret = decode_lowdelay(s)) < 0) |
1888 | ✗ | return ret; | |
1889 | } | ||
1890 | } | ||
1891 | |||
1892 |
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1040 | for (comp = 0; comp < 3; comp++) { |
1893 | 780 | Plane *p = &s->plane[comp]; | |
1894 | 780 | uint8_t *frame = s->current_picture->avframe->data[comp]; | |
1895 | |||
1896 | /* FIXME: small resolutions */ | ||
1897 |
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3900 | for (i = 0; i < 4; i++) |
1898 | 3120 | s->edge_emu_buffer[i] = s->edge_emu_buffer_base + i*FFALIGN(p->width, 16); | |
1899 | |||
1900 |
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780 | if (!s->zero_res && !s->low_delay) |
1901 | { | ||
1902 | 93 | memset(p->idwt.buf, 0, p->idwt.stride * p->idwt.height); | |
1903 | 93 | ret = decode_component(s, comp); /* [DIRAC_STD] 13.4.1 core_transform_data() */ | |
1904 |
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93 | if (ret < 0) |
1905 | ✗ | return ret; | |
1906 | } | ||
1907 | 780 | ret = ff_spatial_idwt_init(&d, &p->idwt, s->wavelet_idx+2, | |
1908 | 780 | s->wavelet_depth, s->bit_depth); | |
1909 |
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780 | if (ret < 0) |
1910 | ✗ | return ret; | |
1911 | |||
1912 |
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780 | if (!s->num_refs) { /* intra */ |
1913 |
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11436 | for (y = 0; y < p->height; y += 16) { |
1914 | 10743 | int idx = (s->bit_depth - 8) >> 1; | |
1915 | 10743 | ff_spatial_idwt_slice2(&d, y+16); /* decode */ | |
1916 | 10743 | s->diracdsp.put_signed_rect_clamped[idx](frame + y*p->stride, | |
1917 | 10743 | p->stride, | |
1918 | 10743 | p->idwt.buf + y*p->idwt.stride, | |
1919 | p->idwt.stride, p->width, 16); | ||
1920 | } | ||
1921 | } else { /* inter */ | ||
1922 | 87 | int rowheight = p->ybsep*p->stride; | |
1923 | |||
1924 | 87 | select_dsp_funcs(s, p->width, p->height, p->xblen, p->yblen); | |
1925 | |||
1926 |
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258 | for (i = 0; i < s->num_refs; i++) { |
1927 | 171 | int ret = interpolate_refplane(s, s->ref_pics[i], comp, p->width, p->height); | |
1928 |
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171 | if (ret < 0) |
1929 | ✗ | return ret; | |
1930 | } | ||
1931 | |||
1932 | 87 | memset(s->mctmp, 0, 4*p->yoffset*p->stride); | |
1933 | |||
1934 | 87 | dsty = -p->yoffset; | |
1935 |
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2784 | for (y = 0; y < s->blheight; y++) { |
1936 | 2784 | int h = 0, | |
1937 | 2784 | start = FFMAX(dsty, 0); | |
1938 | 2784 | uint16_t *mctmp = s->mctmp + y*rowheight; | |
1939 | 2784 | DiracBlock *blocks = s->blmotion + y*s->blwidth; | |
1940 | |||
1941 | 2784 | init_obmc_weights(s, p, y); | |
1942 | |||
1943 |
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2784 | if (y == s->blheight-1 || start+p->ybsep > p->height) |
1944 | 174 | h = p->height - start; | |
1945 | else | ||
1946 | 2610 | h = p->ybsep - (start - dsty); | |
1947 |
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2784 | if (h < 0) |
1948 | 87 | break; | |
1949 | |||
1950 | 2697 | memset(mctmp+2*p->yoffset*p->stride, 0, 2*rowheight); | |
1951 | 2697 | mc_row(s, blocks, mctmp, comp, dsty); | |
1952 | |||
1953 | 2697 | mctmp += (start - dsty)*p->stride + p->xoffset; | |
1954 | 2697 | ff_spatial_idwt_slice2(&d, start + h); /* decode */ | |
1955 | /* NOTE: add_rect_clamped hasn't been templated hence the shifts. | ||
1956 | * idwt.stride is passed as pixels, not in bytes as in the rest of the decoder */ | ||
1957 | 2697 | s->diracdsp.add_rect_clamped(frame + start*p->stride, mctmp, p->stride, | |
1958 | 2697 | (int16_t*)(p->idwt.buf) + start*(p->idwt.stride >> 1), (p->idwt.stride >> 1), p->width, h); | |
1959 | |||
1960 | 2697 | dsty += p->ybsep; | |
1961 | } | ||
1962 | } | ||
1963 | } | ||
1964 | |||
1965 | |||
1966 | 260 | return 0; | |
1967 | } | ||
1968 | |||
1969 | 260 | static int get_buffer_with_edge(AVCodecContext *avctx, AVFrame *f, int flags) | |
1970 | { | ||
1971 | int ret, i; | ||
1972 | int chroma_x_shift, chroma_y_shift; | ||
1973 | 260 | ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_x_shift, | |
1974 | &chroma_y_shift); | ||
1975 |
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260 | if (ret < 0) |
1976 | ✗ | return ret; | |
1977 | |||
1978 | 260 | f->width = avctx->width + 2 * EDGE_WIDTH; | |
1979 | 260 | f->height = avctx->height + 2 * EDGE_WIDTH + 2; | |
1980 | 260 | ret = ff_get_buffer(avctx, f, flags); | |
1981 |
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260 | if (ret < 0) |
1982 | ✗ | return ret; | |
1983 | |||
1984 |
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1040 | for (i = 0; f->data[i]; i++) { |
1985 |
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780 | int offset = (EDGE_WIDTH >> (i && i<3 ? chroma_y_shift : 0)) * |
1986 | 780 | f->linesize[i] + 32; | |
1987 | 780 | f->data[i] += offset; | |
1988 | } | ||
1989 | 260 | f->width = avctx->width; | |
1990 | 260 | f->height = avctx->height; | |
1991 | |||
1992 | 260 | return 0; | |
1993 | } | ||
1994 | |||
1995 | /** | ||
1996 | * Dirac Specification -> | ||
1997 | * 11.1.1 Picture Header. picture_header() | ||
1998 | */ | ||
1999 | 260 | static int dirac_decode_picture_header(DiracContext *s) | |
2000 | { | ||
2001 | unsigned retire, picnum; | ||
2002 | int i, j, ret; | ||
2003 | int64_t refdist, refnum; | ||
2004 | 260 | GetBitContext *gb = &s->gb; | |
2005 | |||
2006 | /* [DIRAC_STD] 11.1.1 Picture Header. picture_header() PICTURE_NUM */ | ||
2007 | 260 | picnum = s->current_picture->picture_number = get_bits_long(gb, 32); | |
2008 | |||
2009 | |||
2010 | 260 | av_log(s->avctx,AV_LOG_DEBUG,"PICTURE_NUM: %d\n",picnum); | |
2011 | |||
2012 | /* if this is the first keyframe after a sequence header, start our | ||
2013 | reordering from here */ | ||
2014 |
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260 | if (s->frame_number < 0) |
2015 | 70 | s->frame_number = picnum; | |
2016 | |||
2017 | 260 | s->ref_pics[0] = s->ref_pics[1] = NULL; | |
2018 |
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317 | for (i |