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1 | /* | ||
2 | * Copyright (c) 2003 The FFmpeg Project | ||
3 | * | ||
4 | * This file is part of FFmpeg. | ||
5 | * | ||
6 | * FFmpeg is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU Lesser General Public | ||
8 | * License as published by the Free Software Foundation; either | ||
9 | * version 2.1 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * FFmpeg is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * Lesser General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU Lesser General Public | ||
17 | * License along with FFmpeg; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | |||
21 | /* | ||
22 | * How to use this decoder: | ||
23 | * SVQ3 data is transported within Apple Quicktime files. Quicktime files | ||
24 | * have stsd atoms to describe media trak properties. A stsd atom for a | ||
25 | * video trak contains 1 or more ImageDescription atoms. These atoms begin | ||
26 | * with the 4-byte length of the atom followed by the codec fourcc. Some | ||
27 | * decoders need information in this atom to operate correctly. Such | ||
28 | * is the case with SVQ3. In order to get the best use out of this decoder, | ||
29 | * the calling app must make the SVQ3 ImageDescription atom available | ||
30 | * via the AVCodecContext's extradata[_size] field: | ||
31 | * | ||
32 | * AVCodecContext.extradata = pointer to ImageDescription, first characters | ||
33 | * are expected to be 'S', 'V', 'Q', and '3', NOT the 4-byte atom length | ||
34 | * AVCodecContext.extradata_size = size of ImageDescription atom memory | ||
35 | * buffer (which will be the same as the ImageDescription atom size field | ||
36 | * from the QT file, minus 4 bytes since the length is missing) | ||
37 | * | ||
38 | * You will know you have these parameters passed correctly when the decoder | ||
39 | * correctly decodes this file: | ||
40 | * http://samples.mplayerhq.hu/V-codecs/SVQ3/Vertical400kbit.sorenson3.mov | ||
41 | */ | ||
42 | |||
43 | #include <inttypes.h> | ||
44 | |||
45 | #include "libavutil/attributes.h" | ||
46 | #include "libavutil/crc.h" | ||
47 | #include "libavutil/mem.h" | ||
48 | #include "libavutil/mem_internal.h" | ||
49 | |||
50 | #include "codec_internal.h" | ||
51 | #include "decode.h" | ||
52 | #include "avcodec.h" | ||
53 | #include "mpegutils.h" | ||
54 | #include "h264data.h" | ||
55 | #include "h264dsp.h" | ||
56 | #include "h264pred.h" | ||
57 | #include "h264_parse.h" | ||
58 | #include "golomb.h" | ||
59 | #include "hpeldsp.h" | ||
60 | #include "mathops.h" | ||
61 | #include "rectangle.h" | ||
62 | #include "tpeldsp.h" | ||
63 | #include "videodsp.h" | ||
64 | |||
65 | #if CONFIG_ZLIB | ||
66 | #include <zlib.h> | ||
67 | #endif | ||
68 | |||
69 | /** | ||
70 | * @file | ||
71 | * svq3 decoder. | ||
72 | */ | ||
73 | |||
74 | #define NUM_PICS 3 | ||
75 | |||
76 | typedef struct SVQ3Frame { | ||
77 | AVFrame *f; | ||
78 | |||
79 | int16_t (*motion_val[2])[2]; | ||
80 | |||
81 | uint32_t *mb_type; | ||
82 | } SVQ3Frame; | ||
83 | |||
84 | typedef struct SVQ3Context { | ||
85 | AVCodecContext *avctx; | ||
86 | |||
87 | H264DSPContext h264dsp; | ||
88 | H264PredContext hpc; | ||
89 | HpelDSPContext hdsp; | ||
90 | TpelDSPContext tdsp; | ||
91 | VideoDSPContext vdsp; | ||
92 | |||
93 | SVQ3Frame *cur_pic; | ||
94 | SVQ3Frame *next_pic; | ||
95 | SVQ3Frame *last_pic; | ||
96 | GetBitContext gb; | ||
97 | GetBitContext gb_slice; | ||
98 | uint8_t *slice_buf; | ||
99 | unsigned slice_buf_size; | ||
100 | int halfpel_flag; | ||
101 | int thirdpel_flag; | ||
102 | int has_watermark; | ||
103 | uint32_t watermark_key; | ||
104 | int adaptive_quant; | ||
105 | int h_edge_pos; | ||
106 | int v_edge_pos; | ||
107 | int slice_num; | ||
108 | int qscale; | ||
109 | int cbp; | ||
110 | int frame_num; | ||
111 | int frame_num_offset; | ||
112 | int prev_frame_num_offset; | ||
113 | int prev_frame_num; | ||
114 | |||
115 | enum AVPictureType pict_type; | ||
116 | enum AVPictureType slice_type; | ||
117 | int low_delay; | ||
118 | |||
119 | int mb_x, mb_y; | ||
120 | int mb_xy; | ||
121 | int mb_width, mb_height; | ||
122 | int mb_stride, mb_num; | ||
123 | int b_stride; | ||
124 | |||
125 | uint32_t *mb2br_xy; | ||
126 | |||
127 | int chroma_pred_mode; | ||
128 | int intra16x16_pred_mode; | ||
129 | |||
130 | int8_t intra4x4_pred_mode_cache[5 * 8]; | ||
131 | int8_t (*intra4x4_pred_mode); | ||
132 | |||
133 | unsigned int top_samples_available; | ||
134 | unsigned int left_samples_available; | ||
135 | |||
136 | uint8_t *edge_emu_buffer; | ||
137 | |||
138 | DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2]; | ||
139 | DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8]; | ||
140 | DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2]; | ||
141 | DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2]; | ||
142 | DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8]; | ||
143 | uint32_t dequant4_coeff[QP_MAX_NUM + 1][16]; | ||
144 | int block_offset[2 * (16 * 3)]; | ||
145 | SVQ3Frame frames[NUM_PICS]; | ||
146 | |||
147 | uint32_t *mb_type_buf; | ||
148 | int16_t (*motion_val_buf)[2]; | ||
149 | } SVQ3Context; | ||
150 | |||
151 | #define FULLPEL_MODE 1 | ||
152 | #define HALFPEL_MODE 2 | ||
153 | #define THIRDPEL_MODE 3 | ||
154 | #define PREDICT_MODE 4 | ||
155 | |||
156 | /* dual scan (from some older H.264 draft) | ||
157 | * o-->o-->o o | ||
158 | * | /| | ||
159 | * o o o / o | ||
160 | * | / | |/ | | ||
161 | * o o o o | ||
162 | * / | ||
163 | * o-->o-->o-->o | ||
164 | */ | ||
165 | static const uint8_t svq3_scan[16] = { | ||
166 | 0 + 0 * 4, 1 + 0 * 4, 2 + 0 * 4, 2 + 1 * 4, | ||
167 | 2 + 2 * 4, 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, | ||
168 | 0 + 1 * 4, 0 + 2 * 4, 1 + 1 * 4, 1 + 2 * 4, | ||
169 | 0 + 3 * 4, 1 + 3 * 4, 2 + 3 * 4, 3 + 3 * 4, | ||
170 | }; | ||
171 | |||
172 | static const uint8_t luma_dc_zigzag_scan[16] = { | ||
173 | 0 * 16 + 0 * 64, 1 * 16 + 0 * 64, 2 * 16 + 0 * 64, 0 * 16 + 2 * 64, | ||
174 | 3 * 16 + 0 * 64, 0 * 16 + 1 * 64, 1 * 16 + 1 * 64, 2 * 16 + 1 * 64, | ||
175 | 1 * 16 + 2 * 64, 2 * 16 + 2 * 64, 3 * 16 + 2 * 64, 0 * 16 + 3 * 64, | ||
176 | 3 * 16 + 1 * 64, 1 * 16 + 3 * 64, 2 * 16 + 3 * 64, 3 * 16 + 3 * 64, | ||
177 | }; | ||
178 | |||
179 | static const uint8_t svq3_pred_0[25][2] = { | ||
180 | { 0, 0 }, | ||
181 | { 1, 0 }, { 0, 1 }, | ||
182 | { 0, 2 }, { 1, 1 }, { 2, 0 }, | ||
183 | { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 }, | ||
184 | { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 }, | ||
185 | { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 }, | ||
186 | { 2, 4 }, { 3, 3 }, { 4, 2 }, | ||
187 | { 4, 3 }, { 3, 4 }, | ||
188 | { 4, 4 } | ||
189 | }; | ||
190 | |||
191 | static const int8_t svq3_pred_1[6][6][5] = { | ||
192 | { { 2, -1, -1, -1, -1 }, { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 }, | ||
193 | { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 }, { 1, 2, -1, -1, -1 } }, | ||
194 | { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 }, | ||
195 | { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } }, | ||
196 | { { 2, 0, -1, -1, -1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 }, | ||
197 | { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } }, | ||
198 | { { 2, 0, -1, -1, -1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 }, | ||
199 | { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } }, | ||
200 | { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 }, | ||
201 | { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } }, | ||
202 | { { 0, 2, -1, -1, -1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 }, | ||
203 | { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } }, | ||
204 | }; | ||
205 | |||
206 | static const struct { | ||
207 | uint8_t run; | ||
208 | uint8_t level; | ||
209 | } svq3_dct_tables[2][16] = { | ||
210 | { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 }, | ||
211 | { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } }, | ||
212 | { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 }, | ||
213 | { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } } | ||
214 | }; | ||
215 | |||
216 | static const uint32_t svq3_dequant_coeff[32] = { | ||
217 | 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718, | ||
218 | 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873, | ||
219 | 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683, | ||
220 | 61694, 68745, 77615, 89113, 100253, 109366, 126635, 141533 | ||
221 | }; | ||
222 | |||
223 | 2537 | static void svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp) | |
224 | { | ||
225 | 2537 | const unsigned qmul = svq3_dequant_coeff[qp]; | |
226 | #define stride 16 | ||
227 | int i; | ||
228 | int temp[16]; | ||
229 | static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride }; | ||
230 | |||
231 |
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12685 | for (i = 0; i < 4; i++) { |
232 | 10148 | const int z0 = 13 * (input[4 * i + 0] + input[4 * i + 2]); | |
233 | 10148 | const int z1 = 13 * (input[4 * i + 0] - input[4 * i + 2]); | |
234 | 10148 | const int z2 = 7 * input[4 * i + 1] - 17 * input[4 * i + 3]; | |
235 | 10148 | const int z3 = 17 * input[4 * i + 1] + 7 * input[4 * i + 3]; | |
236 | |||
237 | 10148 | temp[4 * i + 0] = z0 + z3; | |
238 | 10148 | temp[4 * i + 1] = z1 + z2; | |
239 | 10148 | temp[4 * i + 2] = z1 - z2; | |
240 | 10148 | temp[4 * i + 3] = z0 - z3; | |
241 | } | ||
242 | |||
243 |
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12685 | for (i = 0; i < 4; i++) { |
244 | 10148 | const int offset = x_offset[i]; | |
245 | 10148 | const int z0 = 13 * (temp[4 * 0 + i] + temp[4 * 2 + i]); | |
246 | 10148 | const int z1 = 13 * (temp[4 * 0 + i] - temp[4 * 2 + i]); | |
247 | 10148 | const int z2 = 7 * temp[4 * 1 + i] - 17 * temp[4 * 3 + i]; | |
248 | 10148 | const int z3 = 17 * temp[4 * 1 + i] + 7 * temp[4 * 3 + i]; | |
249 | |||
250 | 10148 | output[stride * 0 + offset] = (int)((z0 + z3) * qmul + 0x80000) >> 20; | |
251 | 10148 | output[stride * 2 + offset] = (int)((z1 + z2) * qmul + 0x80000) >> 20; | |
252 | 10148 | output[stride * 8 + offset] = (int)((z1 - z2) * qmul + 0x80000) >> 20; | |
253 | 10148 | output[stride * 10 + offset] = (int)((z0 - z3) * qmul + 0x80000) >> 20; | |
254 | } | ||
255 | 2537 | } | |
256 | #undef stride | ||
257 | |||
258 | 4013303 | static void svq3_add_idct_c(uint8_t *dst, int16_t *block, | |
259 | int stride, int qp, int dc) | ||
260 | { | ||
261 | 4013303 | const int qmul = svq3_dequant_coeff[qp]; | |
262 | int i; | ||
263 | |||
264 |
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4013303 | if (dc) { |
265 |
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998979 | dc = 13 * 13 * (dc == 1 ? 1538U* block[0] |
266 | 972885 | : qmul * (block[0] >> 3) / 2); | |
267 | 998979 | block[0] = 0; | |
268 | } | ||
269 | |||
270 |
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20066515 | for (i = 0; i < 4; i++) { |
271 | 16053212 | const int z0 = 13 * (block[0 + 4 * i] + block[2 + 4 * i]); | |
272 | 16053212 | const int z1 = 13 * (block[0 + 4 * i] - block[2 + 4 * i]); | |
273 | 16053212 | const int z2 = 7 * block[1 + 4 * i] - 17 * block[3 + 4 * i]; | |
274 | 16053212 | const int z3 = 17 * block[1 + 4 * i] + 7 * block[3 + 4 * i]; | |
275 | |||
276 | 16053212 | block[0 + 4 * i] = z0 + z3; | |
277 | 16053212 | block[1 + 4 * i] = z1 + z2; | |
278 | 16053212 | block[2 + 4 * i] = z1 - z2; | |
279 | 16053212 | block[3 + 4 * i] = z0 - z3; | |
280 | } | ||
281 | |||
282 |
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20066515 | for (i = 0; i < 4; i++) { |
283 | 16053212 | const unsigned z0 = 13 * (block[i + 4 * 0] + block[i + 4 * 2]); | |
284 | 16053212 | const unsigned z1 = 13 * (block[i + 4 * 0] - block[i + 4 * 2]); | |
285 | 16053212 | const unsigned z2 = 7 * block[i + 4 * 1] - 17 * block[i + 4 * 3]; | |
286 | 16053212 | const unsigned z3 = 17 * block[i + 4 * 1] + 7 * block[i + 4 * 3]; | |
287 | 16053212 | const int rr = (dc + 0x80000u); | |
288 | |||
289 | 16053212 | dst[i + stride * 0] = av_clip_uint8(dst[i + stride * 0] + ((int)((z0 + z3) * qmul + rr) >> 20)); | |
290 | 16053212 | dst[i + stride * 1] = av_clip_uint8(dst[i + stride * 1] + ((int)((z1 + z2) * qmul + rr) >> 20)); | |
291 | 16053212 | dst[i + stride * 2] = av_clip_uint8(dst[i + stride * 2] + ((int)((z1 - z2) * qmul + rr) >> 20)); | |
292 | 16053212 | dst[i + stride * 3] = av_clip_uint8(dst[i + stride * 3] + ((int)((z0 - z3) * qmul + rr) >> 20)); | |
293 | } | ||
294 | |||
295 | 4013303 | memset(block, 0, 16 * sizeof(int16_t)); | |
296 | 4013303 | } | |
297 | |||
298 | 3881601 | static inline int svq3_decode_block(GetBitContext *gb, int16_t *block, | |
299 | int index, const int type) | ||
300 | { | ||
301 | static const uint8_t *const scan_patterns[4] = { | ||
302 | luma_dc_zigzag_scan, ff_zigzag_scan, svq3_scan, ff_h264_chroma_dc_scan | ||
303 | }; | ||
304 | |||
305 | int run, level, sign, limit; | ||
306 | unsigned vlc; | ||
307 | 3881601 | const int intra = 3 * type >> 2; | |
308 | 3881601 | const uint8_t *const scan = scan_patterns[type]; | |
309 | |||
310 |
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5001417 | for (limit = (16 >> intra); index < 16; index = limit, limit += 8) { |
311 |
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9818534 | for (; (vlc = get_interleaved_ue_golomb(gb)) != 0; index++) { |
312 |
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5377025 | if ((int32_t)vlc < 0) |
313 | ✗ | return -1; | |
314 | |||
315 |
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5377025 | sign = (vlc & 1) ? 0 : -1; |
316 | 5377025 | vlc = vlc + 1 >> 1; | |
317 | |||
318 |
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5377025 | if (type == 3) { |
319 |
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249633 | if (vlc < 3) { |
320 | 169007 | run = 0; | |
321 | 169007 | level = vlc; | |
322 |
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80626 | } else if (vlc < 4) { |
323 | 34201 | run = 1; | |
324 | 34201 | level = 1; | |
325 | } else { | ||
326 | 46425 | run = vlc & 0x3; | |
327 | 46425 | level = (vlc + 9 >> 2) - run; | |
328 | } | ||
329 | } else { | ||
330 |
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5127392 | if (vlc < 16U) { |
331 | 5034991 | run = svq3_dct_tables[intra][vlc].run; | |
332 | 5034991 | level = svq3_dct_tables[intra][vlc].level; | |
333 |
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92401 | } else if (intra) { |
334 | 8622 | run = vlc & 0x7; | |
335 |
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8622 | level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1))); |
336 | } else { | ||
337 | 83779 | run = vlc & 0xF; | |
338 |
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83779 | level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0))); |
339 | } | ||
340 | } | ||
341 | |||
342 | |||
343 |
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5377025 | if ((index += run) >= limit) |
344 | ✗ | return -1; | |
345 | |||
346 | 5377025 | block[scan[index]] = (level ^ sign) - sign; | |
347 | } | ||
348 | |||
349 |
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4441509 | if (type != 2) { |
350 | 3321693 | break; | |
351 | } | ||
352 | } | ||
353 | |||
354 | 3881601 | return 0; | |
355 | } | ||
356 | |||
357 | static av_always_inline int | ||
358 | 556385 | svq3_fetch_diagonal_mv(const SVQ3Context *s, const int16_t **C, | |
359 | int i, int list, int part_width) | ||
360 | { | ||
361 | 556385 | const int topright_ref = s->ref_cache[list][i - 8 + part_width]; | |
362 | |||
363 |
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556385 | if (topright_ref != PART_NOT_AVAILABLE) { |
364 | 474936 | *C = s->mv_cache[list][i - 8 + part_width]; | |
365 | 474936 | return topright_ref; | |
366 | } else { | ||
367 | 81449 | *C = s->mv_cache[list][i - 8 - 1]; | |
368 | 81449 | return s->ref_cache[list][i - 8 - 1]; | |
369 | } | ||
370 | } | ||
371 | |||
372 | /** | ||
373 | * Get the predicted MV. | ||
374 | * @param n the block index | ||
375 | * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4) | ||
376 | * @param mx the x component of the predicted motion vector | ||
377 | * @param my the y component of the predicted motion vector | ||
378 | */ | ||
379 | 556385 | static av_always_inline void svq3_pred_motion(const SVQ3Context *s, int n, | |
380 | int part_width, int list, | ||
381 | int ref, int *const mx, int *const my) | ||
382 | { | ||
383 | 556385 | const int index8 = scan8[n]; | |
384 | 556385 | const int top_ref = s->ref_cache[list][index8 - 8]; | |
385 | 556385 | const int left_ref = s->ref_cache[list][index8 - 1]; | |
386 | 556385 | const int16_t *const A = s->mv_cache[list][index8 - 1]; | |
387 | 556385 | const int16_t *const B = s->mv_cache[list][index8 - 8]; | |
388 | const int16_t *C; | ||
389 | int diagonal_ref, match_count; | ||
390 | |||
391 | /* mv_cache | ||
392 | * B . . A T T T T | ||
393 | * U . . L . . , . | ||
394 | * U . . L . . . . | ||
395 | * U . . L . . , . | ||
396 | * . . . L . . . . | ||
397 | */ | ||
398 | |||
399 | 556385 | diagonal_ref = svq3_fetch_diagonal_mv(s, &C, index8, list, part_width); | |
400 | 556385 | match_count = (diagonal_ref == ref) + (top_ref == ref) + (left_ref == ref); | |
401 |
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556385 | if (match_count > 1) { //most common |
402 | 532596 | *mx = mid_pred(A[0], B[0], C[0]); | |
403 | 532596 | *my = mid_pred(A[1], B[1], C[1]); | |
404 |
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23789 | } else if (match_count == 1) { |
405 |
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23789 | if (left_ref == ref) { |
406 | 23789 | *mx = A[0]; | |
407 | 23789 | *my = A[1]; | |
408 | ✗ | } else if (top_ref == ref) { | |
409 | ✗ | *mx = B[0]; | |
410 | ✗ | *my = B[1]; | |
411 | } else { | ||
412 | ✗ | *mx = C[0]; | |
413 | ✗ | *my = C[1]; | |
414 | } | ||
415 | } else { | ||
416 | ✗ | if (top_ref == PART_NOT_AVAILABLE && | |
417 | ✗ | diagonal_ref == PART_NOT_AVAILABLE && | |
418 | left_ref != PART_NOT_AVAILABLE) { | ||
419 | ✗ | *mx = A[0]; | |
420 | ✗ | *my = A[1]; | |
421 | } else { | ||
422 | ✗ | *mx = mid_pred(A[0], B[0], C[0]); | |
423 | ✗ | *my = mid_pred(A[1], B[1], C[1]); | |
424 | } | ||
425 | } | ||
426 | 556385 | } | |
427 | |||
428 | 911391 | static inline void svq3_mc_dir_part(SVQ3Context *s, | |
429 | int x, int y, int width, int height, | ||
430 | int mx, int my, int dxy, | ||
431 | int thirdpel, int dir, int avg) | ||
432 | { | ||
433 |
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911391 | const SVQ3Frame *pic = (dir == 0) ? s->last_pic : s->next_pic; |
434 | uint8_t *src, *dest; | ||
435 | 911391 | int i, emu = 0; | |
436 | 911391 | int blocksize = 2 - (width >> 3); // 16->0, 8->1, 4->2 | |
437 | 911391 | int linesize = s->cur_pic->f->linesize[0]; | |
438 | 911391 | int uvlinesize = s->cur_pic->f->linesize[1]; | |
439 | |||
440 | 911391 | mx += x; | |
441 | 911391 | my += y; | |
442 | |||
443 |
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911391 | if (mx < 0 || mx >= s->h_edge_pos - width - 1 || |
444 |
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870282 | my < 0 || my >= s->v_edge_pos - height - 1) { |
445 | 88682 | emu = 1; | |
446 | 88682 | mx = av_clip(mx, -16, s->h_edge_pos - width + 15); | |
447 | 88682 | my = av_clip(my, -16, s->v_edge_pos - height + 15); | |
448 | } | ||
449 | |||
450 | /* form component predictions */ | ||
451 | 911391 | dest = s->cur_pic->f->data[0] + x + y * linesize; | |
452 | 911391 | src = pic->f->data[0] + mx + my * linesize; | |
453 | |||
454 |
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911391 | if (emu) { |
455 | 88682 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, | |
456 | linesize, linesize, | ||
457 | width + 1, height + 1, | ||
458 | mx, my, s->h_edge_pos, s->v_edge_pos); | ||
459 | 88682 | src = s->edge_emu_buffer; | |
460 | } | ||
461 |
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911391 | if (thirdpel) |
462 | (avg ? s->tdsp.avg_tpel_pixels_tab | ||
463 |
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182 | : s->tdsp.put_tpel_pixels_tab)[dxy](dest, src, linesize, |
464 | width, height); | ||
465 | else | ||
466 | (avg ? s->hdsp.avg_pixels_tab | ||
467 |
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911209 | : s->hdsp.put_pixels_tab)[blocksize][dxy](dest, src, linesize, |
468 | height); | ||
469 | |||
470 |
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911391 | if (!(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
471 | 911391 | mx = mx + (mx < (int) x) >> 1; | |
472 | 911391 | my = my + (my < (int) y) >> 1; | |
473 | 911391 | width = width >> 1; | |
474 | 911391 | height = height >> 1; | |
475 | 911391 | blocksize++; | |
476 | |||
477 |
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2734173 | for (i = 1; i < 3; i++) { |
478 | 1822782 | dest = s->cur_pic->f->data[i] + (x >> 1) + (y >> 1) * uvlinesize; | |
479 | 1822782 | src = pic->f->data[i] + mx + my * uvlinesize; | |
480 | |||
481 |
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1822782 | if (emu) { |
482 | 177364 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, | |
483 | uvlinesize, uvlinesize, | ||
484 | width + 1, height + 1, | ||
485 | 177364 | mx, my, (s->h_edge_pos >> 1), | |
486 | 177364 | s->v_edge_pos >> 1); | |
487 | 177364 | src = s->edge_emu_buffer; | |
488 | } | ||
489 |
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1822782 | if (thirdpel) |
490 | (avg ? s->tdsp.avg_tpel_pixels_tab | ||
491 |
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364 | : s->tdsp.put_tpel_pixels_tab)[dxy](dest, src, |
492 | uvlinesize, | ||
493 | width, height); | ||
494 | else | ||
495 | (avg ? s->hdsp.avg_pixels_tab | ||
496 |
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1822418 | : s->hdsp.put_pixels_tab)[blocksize][dxy](dest, src, |
497 | uvlinesize, | ||
498 | height); | ||
499 | } | ||
500 | } | ||
501 | 911391 | } | |
502 | |||
503 | 438837 | static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode, | |
504 | int dir, int avg) | ||
505 | { | ||
506 | int i, j, k, mx, my, dx, dy, x, y; | ||
507 |
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438837 | const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1); |
508 | 438837 | const int part_height = 16 >> ((unsigned)(size + 1) / 3); | |
509 |
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438837 | const int extra_width = (mode == PREDICT_MODE) ? -16 * 6 : 0; |
510 | 438837 | const int h_edge_pos = 6 * (s->h_edge_pos - part_width) - extra_width; | |
511 | 438837 | const int v_edge_pos = 6 * (s->v_edge_pos - part_height) - extra_width; | |
512 | |||
513 |
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917158 | for (i = 0; i < 16; i += part_height) |
514 |
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1035744 | for (j = 0; j < 16; j += part_width) { |
515 | 557423 | const int b_xy = (4 * s->mb_x + (j >> 2)) + | |
516 | 557423 | (4 * s->mb_y + (i >> 2)) * s->b_stride; | |
517 | int dxy; | ||
518 | 557423 | x = 16 * s->mb_x + j; | |
519 | 557423 | y = 16 * s->mb_y + i; | |
520 | 557423 | k = (j >> 2 & 1) + (i >> 1 & 2) + | |
521 | 557423 | (j >> 1 & 4) + (i & 8); | |
522 | |||
523 |
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557423 | if (mode != PREDICT_MODE) { |
524 | 556385 | svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my); | |
525 | } else { | ||
526 | 1038 | mx = s->next_pic->motion_val[0][b_xy][0] * 2; | |
527 | 1038 | my = s->next_pic->motion_val[0][b_xy][1] * 2; | |
528 | |||
529 |
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1038 | if (dir == 0) { |
530 | 519 | mx = mx * s->frame_num_offset / | |
531 | 519 | s->prev_frame_num_offset + 1 >> 1; | |
532 | 519 | my = my * s->frame_num_offset / | |
533 | 519 | s->prev_frame_num_offset + 1 >> 1; | |
534 | } else { | ||
535 | 519 | mx = mx * (s->frame_num_offset - s->prev_frame_num_offset) / | |
536 | 519 | s->prev_frame_num_offset + 1 >> 1; | |
537 | 519 | my = my * (s->frame_num_offset - s->prev_frame_num_offset) / | |
538 | 519 | s->prev_frame_num_offset + 1 >> 1; | |
539 | } | ||
540 | } | ||
541 | |||
542 | /* clip motion vector prediction to frame border */ | ||
543 | 557423 | mx = av_clip(mx, extra_width - 6 * x, h_edge_pos - 6 * x); | |
544 | 557423 | my = av_clip(my, extra_width - 6 * y, v_edge_pos - 6 * y); | |
545 | |||
546 | /* get (optional) motion vector differential */ | ||
547 |
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557423 | if (mode == PREDICT_MODE) { |
548 | 1038 | dx = dy = 0; | |
549 | } else { | ||
550 | 556385 | dy = get_interleaved_se_golomb(&s->gb_slice); | |
551 | 556385 | dx = get_interleaved_se_golomb(&s->gb_slice); | |
552 | |||
553 |
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556385 | if (dx != (int16_t)dx || dy != (int16_t)dy) { |
554 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "invalid MV vlc\n"); | |
555 | ✗ | return -1; | |
556 | } | ||
557 | } | ||
558 | |||
559 | /* compute motion vector */ | ||
560 |
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557423 | if (mode == THIRDPEL_MODE) { |
561 | int fx, fy; | ||
562 | 182 | mx = (mx + 1 >> 1) + dx; | |
563 | 182 | my = (my + 1 >> 1) + dy; | |
564 | 182 | fx = (unsigned)(mx + 0x30000) / 3 - 0x10000; | |
565 | 182 | fy = (unsigned)(my + 0x30000) / 3 - 0x10000; | |
566 | 182 | dxy = (mx - 3 * fx) + 4 * (my - 3 * fy); | |
567 | |||
568 | 182 | svq3_mc_dir_part(s, x, y, part_width, part_height, | |
569 | fx, fy, dxy, 1, dir, avg); | ||
570 | 182 | mx += mx; | |
571 | 182 | my += my; | |
572 |
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557241 | } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) { |
573 | 276152 | mx = (unsigned)(mx + 1 + 0x30000) / 3 + dx - 0x10000; | |
574 | 276152 | my = (unsigned)(my + 1 + 0x30000) / 3 + dy - 0x10000; | |
575 | 276152 | dxy = (mx & 1) + 2 * (my & 1); | |
576 | |||
577 | 276152 | svq3_mc_dir_part(s, x, y, part_width, part_height, | |
578 | mx >> 1, my >> 1, dxy, 0, dir, avg); | ||
579 | 276152 | mx *= 3; | |
580 | 276152 | my *= 3; | |
581 | } else { | ||
582 | 281089 | mx = (unsigned)(mx + 3 + 0x60000) / 6 + dx - 0x10000; | |
583 | 281089 | my = (unsigned)(my + 3 + 0x60000) / 6 + dy - 0x10000; | |
584 | |||
585 | 281089 | svq3_mc_dir_part(s, x, y, part_width, part_height, | |
586 | mx, my, 0, 0, dir, avg); | ||
587 | 281089 | mx *= 6; | |
588 | 281089 | my *= 6; | |
589 | } | ||
590 | |||
591 | /* update mv_cache */ | ||
592 |
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557423 | if (mode != PREDICT_MODE) { |
593 | 556385 | int32_t mv = pack16to32(mx, my); | |
594 | |||
595 |
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556385 | if (part_height == 8 && i < 8) { |
596 | 78777 | AV_WN32A(s->mv_cache[dir][scan8[k] + 1 * 8], mv); | |
597 | |||
598 |
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78777 | if (part_width == 8 && j < 8) |
599 | 39349 | AV_WN32A(s->mv_cache[dir][scan8[k] + 1 + 1 * 8], mv); | |
600 | } | ||
601 |
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556385 | if (part_width == 8 && j < 8) |
602 | 78810 | AV_WN32A(s->mv_cache[dir][scan8[k] + 1], mv); | |
603 |
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556385 | if (part_width == 4 || part_height == 4) |
604 | 184 | AV_WN32A(s->mv_cache[dir][scan8[k]], mv); | |
605 | } | ||
606 | |||
607 | /* write back motion vectors */ | ||
608 | 557423 | fill_rectangle(s->cur_pic->motion_val[dir][b_xy], | |
609 | part_width >> 2, part_height >> 2, s->b_stride, | ||
610 | pack16to32(mx, my), 4); | ||
611 | } | ||
612 | |||
613 | 438837 | return 0; | |
614 | } | ||
615 | |||
616 | 488580 | static av_always_inline void hl_decode_mb_idct_luma(SVQ3Context *s, | |
617 | int mb_type, const int *block_offset, | ||
618 | int linesize, uint8_t *dest_y) | ||
619 | { | ||
620 | int i; | ||
621 |
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488580 | if (!IS_INTRA4x4(mb_type)) { |
622 |
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7489639 | for (i = 0; i < 16; i++) |
623 |
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7049072 | if (s->non_zero_count_cache[scan8[i]] || s->mb[i * 16]) { |
624 | 2480354 | uint8_t *const ptr = dest_y + block_offset[i]; | |
625 | 2480354 | svq3_add_idct_c(ptr, s->mb + i * 16, linesize, | |
626 | 2480354 | s->qscale, IS_INTRA(mb_type) ? 1 : 0); | |
627 | } | ||
628 | } | ||
629 | 488580 | } | |
630 | |||
631 | 50550 | static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s, | |
632 | int mb_type, | ||
633 | const int *block_offset, | ||
634 | int linesize, | ||
635 | uint8_t *dest_y) | ||
636 | { | ||
637 | int i; | ||
638 | 50550 | int qscale = s->qscale; | |
639 | |||
640 |
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50550 | if (IS_INTRA4x4(mb_type)) { |
641 |
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816221 | for (i = 0; i < 16; i++) { |
642 | 768208 | uint8_t *const ptr = dest_y + block_offset[i]; | |
643 | 768208 | const int dir = s->intra4x4_pred_mode_cache[scan8[i]]; | |
644 | |||
645 | uint8_t *topright; | ||
646 | int nnz; | ||
647 |
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768208 | if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) { |
648 | av_assert2(s->mb_y || linesize <= block_offset[i]); | ||
649 | 52949 | topright = ptr + 4 - linesize; | |
650 | } else | ||
651 | 715259 | topright = NULL; | |
652 | |||
653 | 768208 | s->hpc.pred4x4[dir](ptr, topright, linesize); | |
654 | 768208 | nnz = s->non_zero_count_cache[scan8[i]]; | |
655 |
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768208 | if (nnz) { |
656 | 560064 | svq3_add_idct_c(ptr, s->mb + i * 16, linesize, qscale, 0); | |
657 | } | ||
658 | } | ||
659 | } else { | ||
660 | 2537 | s->hpc.pred16x16[s->intra16x16_pred_mode](dest_y, linesize); | |
661 | 2537 | svq3_luma_dc_dequant_idct_c(s->mb, s->mb_luma_dc[0], qscale); | |
662 | } | ||
663 | 50550 | } | |
664 | |||
665 | 488580 | static void hl_decode_mb(SVQ3Context *s) | |
666 | { | ||
667 | 488580 | const int mb_x = s->mb_x; | |
668 | 488580 | const int mb_y = s->mb_y; | |
669 | 488580 | const int mb_xy = s->mb_xy; | |
670 | 488580 | const int mb_type = s->cur_pic->mb_type[mb_xy]; | |
671 | uint8_t *dest_y, *dest_cb, *dest_cr; | ||
672 | int linesize, uvlinesize; | ||
673 | int i, j; | ||
674 | 488580 | const int *block_offset = &s->block_offset[0]; | |
675 | 488580 | const int block_h = 16 >> 1; | |
676 | |||
677 | 488580 | linesize = s->cur_pic->f->linesize[0]; | |
678 | 488580 | uvlinesize = s->cur_pic->f->linesize[1]; | |
679 | |||
680 | 488580 | dest_y = s->cur_pic->f->data[0] + (mb_x + mb_y * linesize) * 16; | |
681 | 488580 | dest_cb = s->cur_pic->f->data[1] + mb_x * 8 + mb_y * uvlinesize * block_h; | |
682 | 488580 | dest_cr = s->cur_pic->f->data[2] + mb_x * 8 + mb_y * uvlinesize * block_h; | |
683 | |||
684 | 488580 | s->vdsp.prefetch(dest_y + (s->mb_x & 3) * 4 * linesize + 64, linesize, 4); | |
685 | 488580 | s->vdsp.prefetch(dest_cb + (s->mb_x & 7) * uvlinesize + 64, dest_cr - dest_cb, 2); | |
686 | |||
687 |
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488580 | if (IS_INTRA(mb_type)) { |
688 | 50550 | s->hpc.pred8x8[s->chroma_pred_mode](dest_cb, uvlinesize); | |
689 | 50550 | s->hpc.pred8x8[s->chroma_pred_mode](dest_cr, uvlinesize); | |
690 | |||
691 | 50550 | hl_decode_mb_predict_luma(s, mb_type, block_offset, linesize, dest_y); | |
692 | } | ||
693 | |||
694 | 488580 | hl_decode_mb_idct_luma(s, mb_type, block_offset, linesize, dest_y); | |
695 | |||
696 |
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488580 | if (s->cbp & 0x30) { |
697 | 159250 | uint8_t *dest[2] = { dest_cb, dest_cr }; | |
698 | 159250 | s->h264dsp.h264_chroma_dc_dequant_idct(s->mb + 16 * 16 * 1, | |
699 | 159250 | s->dequant4_coeff[4][0]); | |
700 | 159250 | s->h264dsp.h264_chroma_dc_dequant_idct(s->mb + 16 * 16 * 2, | |
701 | 159250 | s->dequant4_coeff[4][0]); | |
702 |
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477750 | for (j = 1; j < 3; j++) { |
703 |
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1592500 | for (i = j * 16; i < j * 16 + 4; i++) |
704 |
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1274000 | if (s->non_zero_count_cache[scan8[i]] || s->mb[i * 16]) { |
705 | 972885 | uint8_t *const ptr = dest[j - 1] + block_offset[i]; | |
706 | 972885 | svq3_add_idct_c(ptr, s->mb + i * 16, | |
707 | 972885 | uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2); | |
708 | } | ||
709 | } | ||
710 | } | ||
711 | 488580 | } | |
712 | |||
713 | 842400 | static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type) | |
714 | { | ||
715 | int i, j, k, m, dir, mode; | ||
716 | 842400 | int cbp = 0; | |
717 | uint32_t vlc; | ||
718 | int8_t *top, *left; | ||
719 | 842400 | const int mb_xy = s->mb_xy; | |
720 | 842400 | const int b_xy = 4 * s->mb_x + 4 * s->mb_y * s->b_stride; | |
721 | |||
722 |
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842400 | s->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; |
723 |
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842400 | s->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; |
724 | |||
725 |
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842400 | if (mb_type == 0) { /* SKIP */ |
726 |
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353880 | if (s->pict_type == AV_PICTURE_TYPE_P || |
727 |
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874 | s->next_pic->mb_type[mb_xy] == -1) { |
728 | 353487 | svq3_mc_dir_part(s, 16 * s->mb_x, 16 * s->mb_y, 16, 16, | |
729 | 0, 0, 0, 0, 0, 0); | ||
730 | |||
731 |
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353487 | if (s->pict_type == AV_PICTURE_TYPE_B) |
732 | 481 | svq3_mc_dir_part(s, 16 * s->mb_x, 16 * s->mb_y, 16, 16, | |
733 | 0, 0, 0, 0, 1, 1); | ||
734 | |||
735 | 353487 | mb_type = MB_TYPE_SKIP; | |
736 | } else { | ||
737 | 393 | mb_type = FFMIN(s->next_pic->mb_type[mb_xy], 6); | |
738 |
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|
393 | if (svq3_mc_dir(s, mb_type, PREDICT_MODE, 0, 0) < 0) |
739 | ✗ | return -1; | |
740 |
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|
393 | if (svq3_mc_dir(s, mb_type, PREDICT_MODE, 1, 1) < 0) |
741 | ✗ | return -1; | |
742 | |||
743 | 393 | mb_type = MB_TYPE_16x16; | |
744 | } | ||
745 |
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488520 | } else if (mb_type < 8) { /* INTER */ |
746 |
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|
437970 | if (s->thirdpel_flag && s->halfpel_flag == !get_bits1(&s->gb_slice)) |
747 | 129 | mode = THIRDPEL_MODE; | |
748 |
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437841 | else if (s->halfpel_flag && |
749 |
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|
437841 | s->thirdpel_flag == !get_bits1(&s->gb_slice)) |
750 | 197056 | mode = HALFPEL_MODE; | |
751 | else | ||
752 | 240785 | mode = FULLPEL_MODE; | |
753 | |||
754 | /* fill caches */ | ||
755 | /* note ref_cache should contain here: | ||
756 | * ???????? | ||
757 | * ???11111 | ||
758 | * N??11111 | ||
759 | * N??11111 | ||
760 | * N??11111 | ||
761 | */ | ||
762 | |||
763 |
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|
438338 | for (m = 0; m < 2; m++) { |
764 |
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|
438154 | if (s->mb_x > 0 && s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - 1] + 6] != -1) { |
765 |
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2107020 | for (i = 0; i < 4; i++) |
766 | 1685616 | AV_COPY32(s->mv_cache[m][scan8[0] - 1 + i * 8], | |
767 | s->cur_pic->motion_val[m][b_xy - 1 + i * s->b_stride]); | ||
768 | } else { | ||
769 |
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83750 | for (i = 0; i < 4; i++) |
770 | 67000 | AV_ZERO32(s->mv_cache[m][scan8[0] - 1 + i * 8]); | |
771 | } | ||
772 |
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|
438154 | if (s->mb_y > 0) { |
773 | 415264 | memcpy(s->mv_cache[m][scan8[0] - 1 * 8], | |
774 | 415264 | s->cur_pic->motion_val[m][b_xy - s->b_stride], | |
775 | 4 * 2 * sizeof(int16_t)); | ||
776 | 415264 | memset(&s->ref_cache[m][scan8[0] - 1 * 8], | |
777 |
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|
415264 | (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1, 4); |
778 | |||
779 |
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415264 | if (s->mb_x < s->mb_width - 1) { |
780 | 397026 | AV_COPY32(s->mv_cache[m][scan8[0] + 4 - 1 * 8], | |
781 | s->cur_pic->motion_val[m][b_xy - s->b_stride + 4]); | ||
782 | 397026 | s->ref_cache[m][scan8[0] + 4 - 1 * 8] = | |
783 |
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397026 | (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride + 1] + 6] == -1 || |
784 |
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|
397026 | s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1; |
785 | } else | ||
786 | 18238 | s->ref_cache[m][scan8[0] + 4 - 1 * 8] = PART_NOT_AVAILABLE; | |
787 |
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|
415264 | if (s->mb_x > 0) { |
788 | 399431 | AV_COPY32(s->mv_cache[m][scan8[0] - 1 - 1 * 8], | |
789 | s->cur_pic->motion_val[m][b_xy - s->b_stride - 1]); | ||
790 | 399431 | s->ref_cache[m][scan8[0] - 1 - 1 * 8] = | |
791 |
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|
399431 | (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] == -1) ? PART_NOT_AVAILABLE : 1; |
792 | } else | ||
793 | 15833 | s->ref_cache[m][scan8[0] - 1 - 1 * 8] = PART_NOT_AVAILABLE; | |
794 | } else | ||
795 | 22890 | memset(&s->ref_cache[m][scan8[0] - 1 * 8 - 1], | |
796 | PART_NOT_AVAILABLE, 8); | ||
797 | |||
798 |
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438154 | if (s->pict_type != AV_PICTURE_TYPE_B) |
799 | 437786 | break; | |
800 | } | ||
801 | |||
802 | /* decode motion vector(s) and form prediction(s) */ | ||
803 |
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|
437970 | if (s->pict_type == AV_PICTURE_TYPE_P) { |
804 |
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|
437786 | if (svq3_mc_dir(s, mb_type - 1, mode, 0, 0) < 0) |
805 | ✗ | return -1; | |
806 | } else { /* AV_PICTURE_TYPE_B */ | ||
807 |
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|
184 | if (mb_type != 2) { |
808 |
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|
134 | if (svq3_mc_dir(s, 0, mode, 0, 0) < 0) |
809 | ✗ | return -1; | |
810 | } else { | ||
811 |
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250 | for (i = 0; i < 4; i++) |
812 | 200 | memset(s->cur_pic->motion_val[0][b_xy + i * s->b_stride], | |
813 | 0, 4 * 2 * sizeof(int16_t)); | ||
814 | } | ||
815 |
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|
184 | if (mb_type != 1) { |
816 |
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131 | if (svq3_mc_dir(s, 0, mode, 1, mb_type == 3) < 0) |
817 | ✗ | return -1; | |
818 | } else { | ||
819 |
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265 | for (i = 0; i < 4; i++) |
820 | 212 | memset(s->cur_pic->motion_val[1][b_xy + i * s->b_stride], | |
821 | 0, 4 * 2 * sizeof(int16_t)); | ||
822 | } | ||
823 | } | ||
824 | |||
825 | 437970 | mb_type = MB_TYPE_16x16; | |
826 |
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|
50550 | } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */ |
827 | 48013 | int8_t *i4x4 = s->intra4x4_pred_mode + s->mb2br_xy[s->mb_xy]; | |
828 | 48013 | int8_t *i4x4_cache = s->intra4x4_pred_mode_cache; | |
829 | |||
830 | 48013 | memset(s->intra4x4_pred_mode_cache, -1, 8 * 5 * sizeof(int8_t)); | |
831 | |||
832 |
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48013 | if (mb_type == 8) { |
833 |
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48013 | if (s->mb_x > 0) { |
834 |
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220070 | for (i = 0; i < 4; i++) |
835 | 176056 | s->intra4x4_pred_mode_cache[scan8[0] - 1 + i * 8] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - 1] + 6 - i]; | |
836 |
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|
44014 | if (s->intra4x4_pred_mode_cache[scan8[0] - 1] == -1) |
837 | ✗ | s->left_samples_available = 0x5F5F; | |
838 | } | ||
839 |
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48013 | if (s->mb_y > 0) { |
840 | 45104 | s->intra4x4_pred_mode_cache[4 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 0]; | |
841 | 45104 | s->intra4x4_pred_mode_cache[5 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 1]; | |
842 | 45104 | s->intra4x4_pred_mode_cache[6 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 2]; | |
843 | 45104 | s->intra4x4_pred_mode_cache[7 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 3]; | |
844 | |||
845 |
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|
45104 | if (s->intra4x4_pred_mode_cache[4 + 8 * 0] == -1) |
846 | ✗ | s->top_samples_available = 0x33FF; | |
847 | } | ||
848 | |||
849 | /* decode prediction codes for luma blocks */ | ||
850 |
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432117 | for (i = 0; i < 16; i += 2) { |
851 | 384104 | vlc = get_interleaved_ue_golomb(&s->gb_slice); | |
852 | |||
853 |
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|
384104 | if (vlc >= 25U) { |
854 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
855 | "luma prediction:%"PRIu32"\n", vlc); | ||
856 | ✗ | return -1; | |
857 | } | ||
858 | |||
859 | 384104 | left = &s->intra4x4_pred_mode_cache[scan8[i] - 1]; | |
860 | 384104 | top = &s->intra4x4_pred_mode_cache[scan8[i] - 8]; | |
861 | |||
862 | 384104 | left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]]; | |
863 | 384104 | left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]]; | |
864 | |||
865 |
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384104 | if (left[1] == -1 || left[2] == -1) { |
866 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "weird prediction\n"); | |
867 | ✗ | return -1; | |
868 | } | ||
869 | } | ||
870 | } else { /* mb_type == 33, DC_128_PRED block type */ | ||
871 | ✗ | for (i = 0; i < 4; i++) | |
872 | ✗ | memset(&s->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_PRED, 4); | |
873 | } | ||
874 | |||
875 | 48013 | AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4); | |
876 | 48013 | i4x4[4] = i4x4_cache[7 + 8 * 3]; | |
877 | 48013 | i4x4[5] = i4x4_cache[7 + 8 * 2]; | |
878 | 48013 | i4x4[6] = i4x4_cache[7 + 8 * 1]; | |
879 | |||
880 |
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|
48013 | if (mb_type == 8) { |
881 | 48013 | ff_h264_check_intra4x4_pred_mode(s->intra4x4_pred_mode_cache, | |
882 | 48013 | s->avctx, s->top_samples_available, | |
883 | 48013 | s->left_samples_available); | |
884 | |||
885 |
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48013 | s->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; |
886 |
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|
48013 | s->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; |
887 | } else { | ||
888 | ✗ | for (i = 0; i < 4; i++) | |
889 | ✗ | memset(&s->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_128_PRED, 4); | |
890 | |||
891 | ✗ | s->top_samples_available = 0x33FF; | |
892 | ✗ | s->left_samples_available = 0x5F5F; | |
893 | } | ||
894 | |||
895 | 48013 | mb_type = MB_TYPE_INTRA4x4; | |
896 | } else { /* INTRA16x16 */ | ||
897 | 2537 | dir = ff_h264_i_mb_type_info[mb_type - 8].pred_mode; | |
898 | 2537 | dir = (dir >> 1) ^ 3 * (dir & 1) ^ 1; | |
899 | |||
900 |
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|
2537 | if ((s->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(s->avctx, s->top_samples_available, |
901 | 2537 | s->left_samples_available, dir, 0)) < 0) { | |
902 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "ff_h264_check_intra_pred_mode < 0\n"); | |
903 | ✗ | return s->intra16x16_pred_mode; | |
904 | } | ||
905 | |||
906 | 2537 | cbp = ff_h264_i_mb_type_info[mb_type - 8].cbp; | |
907 | 2537 | mb_type = MB_TYPE_INTRA16x16; | |
908 | } | ||
909 | |||
910 |
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|
842400 | if (!IS_INTER(mb_type) && s->pict_type != AV_PICTURE_TYPE_I) { |
911 |
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|
1924335 | for (i = 0; i < 4; i++) |
912 | 1539468 | memset(s->cur_pic->motion_val[0][b_xy + i * s->b_stride], | |
913 | 0, 4 * 2 * sizeof(int16_t)); | ||
914 |
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|
384867 | if (s->pict_type == AV_PICTURE_TYPE_B) { |
915 |
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|
2515 | for (i = 0; i < 4; i++) |
916 | 2012 | memset(s->cur_pic->motion_val[1][b_xy + i * s->b_stride], | |
917 | 0, 4 * 2 * sizeof(int16_t)); | ||
918 | } | ||
919 | } | ||
920 |
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|
842400 | if (!IS_INTRA4x4(mb_type)) { |
921 | 794387 | memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy], DC_PRED, 8); | |
922 | } | ||
923 |
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|
842400 | if (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B) { |
924 | 489394 | memset(s->non_zero_count_cache + 8, 0, 14 * 8 * sizeof(uint8_t)); | |
925 | } | ||
926 | |||
927 |
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|
842400 | if (!IS_INTRA16x16(mb_type) && |
928 |
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|
839863 | (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B)) { |
929 |
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|
486857 | if ((vlc = get_interleaved_ue_golomb(&s->gb_slice)) >= 48U){ |
930 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "cbp_vlc=%"PRIu32"\n", vlc); | |
931 | ✗ | return -1; | |
932 | } | ||
933 | |||
934 | 486857 | cbp = IS_INTRA(mb_type) ? ff_h264_golomb_to_intra4x4_cbp[vlc] | |
935 |
2/2✓ Branch 0 taken 48013 times.
✓ Branch 1 taken 438844 times.
|
486857 | : ff_h264_golomb_to_inter_cbp[vlc]; |
936 | } | ||
937 |
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|
842400 | if (IS_INTRA16x16(mb_type) || |
938 |
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|
839863 | (s->pict_type != AV_PICTURE_TYPE_I && s->adaptive_quant && cbp)) { |
939 | 3233 | s->qscale += get_interleaved_se_golomb(&s->gb_slice); | |
940 | |||
941 |
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|
3233 | if (s->qscale > 31u) { |
942 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale); | |
943 | ✗ | return -1; | |
944 | } | ||
945 | } | ||
946 |
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|
842400 | if (IS_INTRA16x16(mb_type)) { |
947 | 2537 | AV_ZERO128(s->mb_luma_dc[0] + 0); | |
948 | 2537 | AV_ZERO128(s->mb_luma_dc[0] + 8); | |
949 |
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|
2537 | if (svq3_decode_block(&s->gb_slice, s->mb_luma_dc[0], 0, 1)) { |
950 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
951 | "error while decoding intra luma dc\n"); | ||
952 | ✗ | return -1; | |
953 | } | ||
954 | } | ||
955 | |||
956 |
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|
842400 | if (cbp) { |
957 | 333556 | const int index = IS_INTRA16x16(mb_type) ? 1 : 0; | |
958 |
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|
333556 | const int type = ((s->qscale < 24 && IS_INTRA4x4(mb_type)) ? 2 : 1); |
959 | |||
960 |
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|
1667780 | for (i = 0; i < 4; i++) |
961 |
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|
1334224 | if ((cbp & (1 << i))) { |
962 |
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|
3772745 | for (j = 0; j < 4; j++) { |
963 | 3022068 | k = index ? (1 * (j & 1) + 2 * (i & 1) + | |
964 | 3872 | 2 * (j & 2) + 4 * (i & 2)) | |
965 |
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|
3018196 | : (4 * i + j); |
966 | 3018196 | s->non_zero_count_cache[scan8[k]] = 1; | |
967 | |||
968 |
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|
3018196 | if (svq3_decode_block(&s->gb_slice, &s->mb[16 * k], index, type)) { |
969 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
970 | "error while decoding block\n"); | ||
971 | ✗ | return -1; | |
972 | } | ||
973 | } | ||
974 | } | ||
975 | |||
976 |
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|
333556 | if ((cbp & 0x30)) { |
977 |
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|
477750 | for (i = 1; i < 3; ++i) |
978 |
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|
318500 | if (svq3_decode_block(&s->gb_slice, &s->mb[16 * 16 * i], 0, 3)) { |
979 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
980 | "error while decoding chroma dc block\n"); | ||
981 | ✗ | return -1; | |
982 | } | ||
983 | |||
984 |
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|
159250 | if ((cbp & 0x20)) { |
985 |
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|
203388 | for (i = 1; i < 3; i++) { |
986 |
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677960 | for (j = 0; j < 4; j++) { |
987 | 542368 | k = 16 * i + j; | |
988 | 542368 | s->non_zero_count_cache[scan8[k]] = 1; | |
989 | |||
990 |
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|
542368 | if (svq3_decode_block(&s->gb_slice, &s->mb[16 * k], 1, 1)) { |
991 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
992 | "error while decoding chroma ac block\n"); | ||
993 | ✗ | return -1; | |
994 | } | ||
995 | } | ||
996 | } | ||
997 | } | ||
998 | } | ||
999 | } | ||
1000 | |||
1001 | 842400 | s->cbp = cbp; | |
1002 | 842400 | s->cur_pic->mb_type[mb_xy] = mb_type; | |
1003 | |||
1004 |
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842400 | if (IS_INTRA(mb_type)) |
1005 | 50550 | s->chroma_pred_mode = ff_h264_check_intra_pred_mode(s->avctx, s->top_samples_available, | |
1006 | 50550 | s->left_samples_available, DC_PRED8x8, 1); | |
1007 | |||
1008 | 842400 | return 0; | |
1009 | } | ||
1010 | |||
1011 | 2809 | static int svq3_decode_slice_header(AVCodecContext *avctx) | |
1012 | { | ||
1013 | 2809 | SVQ3Context *s = avctx->priv_data; | |
1014 | 2809 | const int mb_xy = s->mb_xy; | |
1015 | int i, header; | ||
1016 | unsigned slice_id; | ||
1017 | |||
1018 | 2809 | header = get_bits(&s->gb, 8); | |
1019 | |||
1020 |
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2809 | if (((header & 0x9F) != 1 && (header & 0x9F) != 2) || (header & 0x60) == 0) { |
1021 | /* TODO: what? */ | ||
1022 | ✗ | av_log(avctx, AV_LOG_ERROR, "unsupported slice header (%02X)\n", header); | |
1023 | ✗ | return -1; | |
1024 | } else { | ||
1025 | int slice_bits, slice_bytes, slice_length; | ||
1026 | 2809 | int length = header >> 5 & 3; | |
1027 | |||
1028 | 2809 | slice_length = show_bits(&s->gb, 8 * length); | |
1029 | 2809 | slice_bits = slice_length * 8; | |
1030 | 2809 | slice_bytes = slice_length + length - 1; | |
1031 | |||
1032 | 2809 | skip_bits(&s->gb, 8); | |
1033 | |||
1034 | 2809 | av_fast_padded_malloc(&s->slice_buf, &s->slice_buf_size, slice_bytes); | |
1035 |
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2809 | if (!s->slice_buf) |
1036 | ✗ | return AVERROR(ENOMEM); | |
1037 | |||
1038 |
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|
2809 | if (slice_bytes * 8LL > get_bits_left(&s->gb)) { |
1039 | ✗ | av_log(avctx, AV_LOG_ERROR, "slice after bitstream end\n"); | |
1040 | ✗ | return AVERROR_INVALIDDATA; | |
1041 | } | ||
1042 | 2809 | memcpy(s->slice_buf, s->gb.buffer + s->gb.index / 8, slice_bytes); | |
1043 | |||
1044 |
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2809 | if (length > 0) { |
1045 | 2809 | memmove(s->slice_buf, &s->slice_buf[slice_length], length - 1); | |
1046 | } | ||
1047 | |||
1048 |
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2809 | if (s->watermark_key) { |
1049 | 10 | uint32_t header = AV_RL32(&s->slice_buf[1]); | |
1050 | 10 | AV_WL32(&s->slice_buf[1], header ^ s->watermark_key); | |
1051 | } | ||
1052 | 2809 | init_get_bits(&s->gb_slice, s->slice_buf, slice_bits); | |
1053 | |||
1054 | 2809 | skip_bits_long(&s->gb, slice_bytes * 8); | |
1055 | } | ||
1056 | |||
1057 |
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|
2809 | if ((slice_id = get_interleaved_ue_golomb(&s->gb_slice)) >= 3) { |
1058 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "illegal slice type %u \n", slice_id); | |
1059 | ✗ | return -1; | |
1060 | } | ||
1061 | |||
1062 | 2809 | s->slice_type = ff_h264_golomb_to_pict_type[slice_id]; | |
1063 | |||
1064 |
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2809 | if ((header & 0x9F) == 2) { |
1065 | ✗ | i = (s->mb_num < 64) ? 6 : (1 + av_log2(s->mb_num - 1)); | |
1066 | ✗ | get_bits(&s->gb_slice, i); | |
1067 |
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|
2809 | } else if (get_bits1(&s->gb_slice)) { |
1068 | ✗ | avpriv_report_missing_feature(s->avctx, "Media key encryption"); | |
1069 | ✗ | return AVERROR_PATCHWELCOME; | |
1070 | } | ||
1071 | |||
1072 | 2809 | s->slice_num = get_bits(&s->gb_slice, 8); | |
1073 | 2809 | s->qscale = get_bits(&s->gb_slice, 5); | |
1074 | 2809 | s->adaptive_quant = get_bits1(&s->gb_slice); | |
1075 | |||
1076 | /* unknown fields */ | ||
1077 | 2809 | skip_bits1(&s->gb_slice); | |
1078 | |||
1079 |
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2809 | if (s->has_watermark) |
1080 | 10 | skip_bits1(&s->gb_slice); | |
1081 | |||
1082 | 2809 | skip_bits1(&s->gb_slice); | |
1083 | 2809 | skip_bits(&s->gb_slice, 2); | |
1084 | |||
1085 |
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2809 | if (skip_1stop_8data_bits(&s->gb_slice) < 0) |
1086 | ✗ | return AVERROR_INVALIDDATA; | |
1087 | |||
1088 | /* reset intra predictors and invalidate motion vector references */ | ||
1089 |
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2809 | if (s->mb_x > 0) { |
1090 | ✗ | memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - 1] + 3, | |
1091 | -1, 4 * sizeof(int8_t)); | ||
1092 | ✗ | memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - s->mb_x], | |
1093 | ✗ | -1, 8 * sizeof(int8_t) * s->mb_x); | |
1094 | } | ||
1095 |
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|
2809 | if (s->mb_y > 0) { |
1096 | ✗ | memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - s->mb_stride], | |
1097 | ✗ | -1, 8 * sizeof(int8_t) * (s->mb_width - s->mb_x)); | |
1098 | |||
1099 | ✗ | if (s->mb_x > 0) | |
1100 | ✗ | s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] = -1; | |
1101 | } | ||
1102 | |||
1103 | 2809 | return 0; | |
1104 | } | ||
1105 | |||
1106 | 8 | static void init_dequant4_coeff_table(SVQ3Context *s) | |
1107 | { | ||
1108 | int q, x; | ||
1109 | 8 | const int max_qp = 51; | |
1110 | |||
1111 |
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|
424 | for (q = 0; q < max_qp + 1; q++) { |
1112 | 416 | int shift = ff_h264_quant_div6[q] + 2; | |
1113 | 416 | int idx = ff_h264_quant_rem6[q]; | |
1114 |
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|
7072 | for (x = 0; x < 16; x++) |
1115 | 6656 | s->dequant4_coeff[q][(x >> 2) | ((x << 2) & 0xF)] = | |
1116 | 6656 | ((uint32_t)ff_h264_dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] * 16) << shift; | |
1117 | } | ||
1118 | 8 | } | |
1119 | |||
1120 | 8 | static av_cold int svq3_decode_extradata(AVCodecContext *avctx, SVQ3Context *s, | |
1121 | int seqh_offset) | ||
1122 | { | ||
1123 | 8 | const uint8_t *extradata = avctx->extradata + seqh_offset; | |
1124 | 8 | unsigned int size = AV_RB32(extradata + 4); | |
1125 | GetBitContext gb; | ||
1126 | int ret; | ||
1127 | |||
1128 |
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|
8 | if (size > avctx->extradata_size - seqh_offset - 8) |
1129 | ✗ | return AVERROR_INVALIDDATA; | |
1130 | 8 | extradata += 8; | |
1131 | 8 | init_get_bits(&gb, extradata, size * 8); | |
1132 | |||
1133 | /* 'frame size code' and optional 'width, height' */ | ||
1134 | 8 | int frame_size_code = get_bits(&gb, 3); | |
1135 | int w, h; | ||
1136 |
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8 | switch (frame_size_code) { |
1137 | ✗ | case 0: | |
1138 | ✗ | w = 160; | |
1139 | ✗ | h = 120; | |
1140 | ✗ | break; | |
1141 | ✗ | case 1: | |
1142 | ✗ | w = 128; | |
1143 | ✗ | h = 96; | |
1144 | ✗ | break; | |
1145 | ✗ | case 2: | |
1146 | ✗ | w = 176; | |
1147 | ✗ | h = 144; | |
1148 | ✗ | break; | |
1149 | ✗ | case 3: | |
1150 | ✗ | w = 352; | |
1151 | ✗ | h = 288; | |
1152 | ✗ | break; | |
1153 | ✗ | case 4: | |
1154 | ✗ | w = 704; | |
1155 | ✗ | h = 576; | |
1156 | ✗ | break; | |
1157 | ✗ | case 5: | |
1158 | ✗ | w = 240; | |
1159 | ✗ | h = 180; | |
1160 | ✗ | break; | |
1161 | 6 | case 6: | |
1162 | 6 | w = 320; | |
1163 | 6 | h = 240; | |
1164 | 6 | break; | |
1165 | 2 | case 7: | |
1166 | 2 | w = get_bits(&gb, 12); | |
1167 | 2 | h = get_bits(&gb, 12); | |
1168 | 2 | break; | |
1169 | } | ||
1170 | 8 | ret = ff_set_dimensions(avctx, w, h); | |
1171 |
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|
8 | if (ret < 0) |
1172 | ✗ | return ret; | |
1173 | |||
1174 | 8 | s->halfpel_flag = get_bits1(&gb); | |
1175 | 8 | s->thirdpel_flag = get_bits1(&gb); | |
1176 | |||
1177 | /* unknown fields */ | ||
1178 | 8 | int unk0 = get_bits1(&gb); | |
1179 | 8 | int unk1 = get_bits1(&gb); | |
1180 | 8 | int unk2 = get_bits1(&gb); | |
1181 | 8 | int unk3 = get_bits1(&gb); | |
1182 | |||
1183 | 8 | s->low_delay = get_bits1(&gb); | |
1184 | 8 | avctx->has_b_frames = !s->low_delay; | |
1185 | |||
1186 | /* unknown field */ | ||
1187 | 8 | int unk4 = get_bits1(&gb); | |
1188 | |||
1189 | 8 | av_log(avctx, AV_LOG_DEBUG, "Unknown fields %d %d %d %d %d\n", | |
1190 | unk0, unk1, unk2, unk3, unk4); | ||
1191 | |||
1192 |
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8 | if (skip_1stop_8data_bits(&gb) < 0) |
1193 | ✗ | return AVERROR_INVALIDDATA; | |
1194 | |||
1195 | 8 | s->has_watermark = get_bits1(&gb); | |
1196 | |||
1197 |
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8 | if (!s->has_watermark) |
1198 | 6 | return 0; | |
1199 | |||
1200 | #if CONFIG_ZLIB | ||
1201 | 2 | unsigned watermark_width = get_interleaved_ue_golomb(&gb); | |
1202 | 2 | unsigned watermark_height = get_interleaved_ue_golomb(&gb); | |
1203 | 2 | int u1 = get_interleaved_ue_golomb(&gb); | |
1204 | 2 | int u2 = get_bits(&gb, 8); | |
1205 | 2 | int u3 = get_bits(&gb, 2); | |
1206 | 2 | int u4 = get_interleaved_ue_golomb(&gb); | |
1207 | 2 | unsigned long buf_len = watermark_width * | |
1208 | 2 | watermark_height * 4; | |
1209 | 2 | int offset = get_bits_count(&gb) + 7 >> 3; | |
1210 | |||
1211 |
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4 | if (watermark_height <= 0 || |
1212 | 2 | get_bits_left(&gb) <= 0 || | |
1213 |
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2 | (uint64_t)watermark_width * 4 > UINT_MAX / watermark_height) |
1214 | ✗ | return AVERROR_INVALIDDATA; | |
1215 | |||
1216 | 2 | av_log(avctx, AV_LOG_DEBUG, "watermark size: %ux%u\n", | |
1217 | watermark_width, watermark_height); | ||
1218 | 2 | av_log(avctx, AV_LOG_DEBUG, | |
1219 | "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n", | ||
1220 | u1, u2, u3, u4, offset); | ||
1221 | |||
1222 | 2 | uint8_t *buf = av_malloc(buf_len); | |
1223 |
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2 | if (!buf) |
1224 | ✗ | return AVERROR(ENOMEM); | |
1225 | |||
1226 |
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2 | if (uncompress(buf, &buf_len, extradata + offset, |
1227 | 2 | size - offset) != Z_OK) { | |
1228 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1229 | "could not uncompress watermark logo\n"); | ||
1230 | ✗ | av_free(buf); | |
1231 | ✗ | return AVERROR_EXTERNAL; | |
1232 | } | ||
1233 | 2 | s->watermark_key = av_bswap16(av_crc(av_crc_get_table(AV_CRC_16_CCITT), 0, buf, buf_len)); | |
1234 | |||
1235 | 2 | s->watermark_key = s->watermark_key << 16 | s->watermark_key; | |
1236 | 2 | av_log(avctx, AV_LOG_DEBUG, | |
1237 | "watermark key %#"PRIx32"\n", s->watermark_key); | ||
1238 | 2 | av_free(buf); | |
1239 | |||
1240 | 2 | return 0; | |
1241 | #else | ||
1242 | av_log(avctx, AV_LOG_ERROR, | ||
1243 | "this svq3 file contains watermark which need zlib support compiled in\n"); | ||
1244 | return AVERROR(ENOSYS); | ||
1245 | #endif | ||
1246 | } | ||
1247 | |||
1248 | 8 | static av_cold int svq3_decode_init(AVCodecContext *avctx) | |
1249 | { | ||
1250 | 8 | SVQ3Context *s = avctx->priv_data; | |
1251 | int m, x, y; | ||
1252 | unsigned char *extradata; | ||
1253 | int ret; | ||
1254 | |||
1255 | 8 | s->cur_pic = &s->frames[0]; | |
1256 | 8 | s->last_pic = &s->frames[1]; | |
1257 | 8 | s->next_pic = &s->frames[2]; | |
1258 | |||
1259 | 8 | s->cur_pic->f = av_frame_alloc(); | |
1260 | 8 | s->last_pic->f = av_frame_alloc(); | |
1261 | 8 | s->next_pic->f = av_frame_alloc(); | |
1262 |
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8 | if (!s->cur_pic->f || !s->last_pic->f || !s->next_pic->f) |
1263 | ✗ | return AVERROR(ENOMEM); | |
1264 | |||
1265 | 8 | ff_h264dsp_init(&s->h264dsp, 8, 1); | |
1266 | 8 | ff_h264_pred_init(&s->hpc, AV_CODEC_ID_SVQ3, 8, 1); | |
1267 | 8 | ff_videodsp_init(&s->vdsp, 8); | |
1268 | |||
1269 | |||
1270 | 8 | avctx->bits_per_raw_sample = 8; | |
1271 | |||
1272 | 8 | ff_hpeldsp_init(&s->hdsp, avctx->flags); | |
1273 | 8 | ff_tpeldsp_init(&s->tdsp); | |
1274 | |||
1275 | 8 | avctx->pix_fmt = AV_PIX_FMT_YUVJ420P; | |
1276 | 8 | avctx->color_range = AVCOL_RANGE_JPEG; | |
1277 | |||
1278 | 8 | s->avctx = avctx; | |
1279 | 8 | s->halfpel_flag = 1; | |
1280 | 8 | s->thirdpel_flag = 1; | |
1281 | 8 | s->has_watermark = 0; | |
1282 | |||
1283 | /* prowl for the "SEQH" marker in the extradata */ | ||
1284 | 8 | extradata = (unsigned char *)avctx->extradata; | |
1285 |
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8 | if (extradata) { |
1286 |
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72 | for (m = 0; m + 8 < avctx->extradata_size; m++) { |
1287 |
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72 | if (!memcmp(extradata, "SEQH", 4)) { |
1288 | /* if a match was found, parse the extra data */ | ||
1289 | 8 | ret = svq3_decode_extradata(avctx, s, m); | |
1290 |
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8 | if (ret < 0) |
1291 | ✗ | return ret; | |
1292 | 8 | break; | |
1293 | } | ||
1294 | 64 | extradata++; | |
1295 | } | ||
1296 | } | ||
1297 | |||
1298 | 8 | s->mb_width = (avctx->width + 15) / 16; | |
1299 | 8 | s->mb_height = (avctx->height + 15) / 16; | |
1300 | 8 | s->mb_stride = s->mb_width + 1; | |
1301 | 8 | s->mb_num = s->mb_width * s->mb_height; | |
1302 | 8 | s->b_stride = 4 * s->mb_width; | |
1303 | 8 | s->h_edge_pos = s->mb_width * 16; | |
1304 | 8 | s->v_edge_pos = s->mb_height * 16; | |
1305 | |||
1306 | 8 | const unsigned big_mb_num = s->mb_stride * (s->mb_height + 2) + 1; | |
1307 | |||
1308 | 8 | s->mb_type_buf = av_calloc(big_mb_num, NUM_PICS * sizeof(*s->mb_type_buf)); | |
1309 |
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8 | if (!s->mb_type_buf) |
1310 | ✗ | return AVERROR(ENOMEM); | |
1311 | 8 | uint32_t *mb_type_buf = s->mb_type_buf + 2 * s->mb_stride + 1; | |
1312 | |||
1313 | 8 | const unsigned b4_stride = s->mb_width * 4 + 1; | |
1314 | 8 | const unsigned b4_array_size = b4_stride * s->mb_height * 4; | |
1315 | 8 | const unsigned motion_val_buf_size = b4_array_size + 4; | |
1316 | |||
1317 | 8 | s->motion_val_buf = av_calloc(motion_val_buf_size, | |
1318 | NUM_PICS * 2 * sizeof(*s->motion_val_buf)); | ||
1319 |
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|
8 | if (!s->motion_val_buf) |
1320 | ✗ | return AVERROR(ENOMEM); | |
1321 | 8 | int16_t (*motion_val_buf)[2] = s->motion_val_buf + 4; | |
1322 | |||
1323 |
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32 | for (size_t i = 0; i < NUM_PICS; ++i) { |
1324 | 24 | SVQ3Frame *const pic = &s->frames[i]; | |
1325 | |||
1326 | 24 | pic->mb_type = mb_type_buf; | |
1327 | 24 | mb_type_buf += big_mb_num; | |
1328 |
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72 | for (size_t j = 0; j < FF_ARRAY_ELEMS(pic->motion_val); ++j) { |
1329 | 48 | pic->motion_val[j] = motion_val_buf; | |
1330 | 48 | motion_val_buf += motion_val_buf_size; | |
1331 | } | ||
1332 | } | ||
1333 | |||
1334 | 8 | s->intra4x4_pred_mode = av_mallocz(s->mb_stride * 2 * 8); | |
1335 |
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8 | if (!s->intra4x4_pred_mode) |
1336 | ✗ | return AVERROR(ENOMEM); | |
1337 | |||
1338 | 8 | s->mb2br_xy = av_mallocz(s->mb_stride * (s->mb_height + 1) * | |
1339 | sizeof(*s->mb2br_xy)); | ||
1340 |
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8 | if (!s->mb2br_xy) |
1341 | ✗ | return AVERROR(ENOMEM); | |
1342 | |||
1343 |
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128 | for (y = 0; y < s->mb_height; y++) |
1344 |
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2460 | for (x = 0; x < s->mb_width; x++) { |
1345 | 2340 | const int mb_xy = x + y * s->mb_stride; | |
1346 | |||
1347 | 2340 | s->mb2br_xy[mb_xy] = 8 * (mb_xy % (2 * s->mb_stride)); | |
1348 | } | ||
1349 | |||
1350 | 8 | init_dequant4_coeff_table(s); | |
1351 | |||
1352 | 8 | return 0; | |
1353 | } | ||
1354 | |||
1355 | 2809 | static int get_buffer(AVCodecContext *avctx, SVQ3Frame *pic) | |
1356 | { | ||
1357 | 2809 | SVQ3Context *s = avctx->priv_data; | |
1358 | 2809 | int ret = ff_get_buffer(avctx, pic->f, | |
1359 | 2809 | (s->pict_type != AV_PICTURE_TYPE_B) ? | |
1360 | AV_GET_BUFFER_FLAG_REF : 0); | ||
1361 |
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2809 | if (ret < 0) |
1362 | ✗ | return ret; | |
1363 | |||
1364 |
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2809 | if (!s->edge_emu_buffer) { |
1365 | 4 | s->edge_emu_buffer = av_calloc(pic->f->linesize[0], 17); | |
1366 |
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4 | if (!s->edge_emu_buffer) |
1367 | ✗ | return AVERROR(ENOMEM); | |
1368 | } | ||
1369 | |||
1370 | 2809 | return 0; | |
1371 | } | ||
1372 | |||
1373 | ✗ | static av_cold int alloc_dummy_frame(AVCodecContext *avctx, SVQ3Frame *pic) | |
1374 | { | ||
1375 | ✗ | av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); | |
1376 | ✗ | av_frame_unref(pic->f); | |
1377 | ✗ | int ret = get_buffer(avctx, pic); | |
1378 | ✗ | if (ret < 0) | |
1379 | ✗ | return ret; | |
1380 | |||
1381 | ✗ | memset(pic->f->data[0], 0, avctx->height * pic->f->linesize[0]); | |
1382 | ✗ | memset(pic->f->data[1], 0x80, (avctx->height / 2) * | |
1383 | ✗ | pic->f->linesize[1]); | |
1384 | ✗ | memset(pic->f->data[2], 0x80, (avctx->height / 2) * | |
1385 | ✗ | pic->f->linesize[2]); | |
1386 | |||
1387 | ✗ | return 0; | |
1388 | } | ||
1389 | |||
1390 | 2815 | static int svq3_decode_frame(AVCodecContext *avctx, AVFrame *rframe, | |
1391 | int *got_frame, AVPacket *avpkt) | ||
1392 | { | ||
1393 | 2815 | SVQ3Context *s = avctx->priv_data; | |
1394 | 2815 | int buf_size = avpkt->size; | |
1395 | int left; | ||
1396 | int ret, m, i; | ||
1397 | |||
1398 | /* special case for last picture */ | ||
1399 |
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2815 | if (buf_size == 0) { |
1400 |
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6 | if (s->next_pic->f->data[0] && !s->low_delay) { |
1401 | 3 | av_frame_move_ref(rframe, s->next_pic->f); | |
1402 | 3 | *got_frame = 1; | |
1403 | } | ||
1404 | 6 | return 0; | |
1405 | } | ||
1406 | |||
1407 | 2809 | s->mb_x = s->mb_y = s->mb_xy = 0; | |
1408 | |||
1409 | 2809 | ret = init_get_bits8(&s->gb, avpkt->data, avpkt->size); | |
1410 |
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2809 | if (ret < 0) |
1411 | ✗ | return ret; | |
1412 | |||
1413 | 2809 | ret = svq3_decode_slice_header(avctx); | |
1414 |
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2809 | if (ret < 0) |
1415 | ✗ | return ret; | |
1416 | |||
1417 |
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2809 | if (avpkt->size < s->mb_width * s->mb_height / 8) |
1418 | ✗ | return AVERROR_INVALIDDATA; | |
1419 | |||
1420 | 2809 | s->pict_type = s->slice_type; | |
1421 | |||
1422 |
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2809 | if (s->pict_type != AV_PICTURE_TYPE_B) |
1423 | 2805 | FFSWAP(SVQ3Frame*, s->next_pic, s->last_pic); | |
1424 | |||
1425 | 2809 | av_frame_unref(s->cur_pic->f); | |
1426 | |||
1427 | /* for skipping the frame */ | ||
1428 | 2809 | s->cur_pic->f->pict_type = s->pict_type; | |
1429 |
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2809 | if (s->pict_type == AV_PICTURE_TYPE_I) |
1430 | 64 | s->cur_pic->f->flags |= AV_FRAME_FLAG_KEY; | |
1431 | else | ||
1432 | 2745 | s->cur_pic->f->flags &= ~AV_FRAME_FLAG_KEY; | |
1433 | |||
1434 | 2809 | ret = get_buffer(avctx, s->cur_pic); | |
1435 |
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2809 | if (ret < 0) |
1436 | ✗ | return ret; | |
1437 | |||
1438 |
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47753 | for (i = 0; i < 16; i++) { |
1439 | 44944 | s->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * s->cur_pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3); | |
1440 | 44944 | s->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * s->cur_pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3); | |
1441 | } | ||
1442 |
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47753 | for (i = 0; i < 16; i++) { |
1443 | 44944 | s->block_offset[16 + i] = | |
1444 | 44944 | s->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * s->cur_pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3); | |
1445 | 44944 | s->block_offset[48 + 16 + i] = | |
1446 | 44944 | s->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * s->cur_pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3); | |
1447 | } | ||
1448 | |||
1449 |
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2809 | if (s->pict_type != AV_PICTURE_TYPE_I) { |
1450 |
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2745 | if (!s->last_pic->f->data[0]) { |
1451 | ✗ | ret = alloc_dummy_frame(avctx, s->last_pic); | |
1452 | ✗ | if (ret < 0) | |
1453 | ✗ | return ret; | |
1454 | } | ||
1455 | |||
1456 |
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2745 | if (s->pict_type == AV_PICTURE_TYPE_B && !s->next_pic->f->data[0]) { |
1457 | ✗ | ret = alloc_dummy_frame(avctx, s->next_pic); | |
1458 | ✗ | if (ret < 0) | |
1459 | ✗ | return ret; | |
1460 | } | ||
1461 | } | ||
1462 | |||
1463 |
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2809 | if (avctx->debug & FF_DEBUG_PICT_INFO) |
1464 | ✗ | av_log(s->avctx, AV_LOG_DEBUG, | |
1465 | "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n", | ||
1466 | ✗ | av_get_picture_type_char(s->pict_type), | |
1467 | s->halfpel_flag, s->thirdpel_flag, | ||
1468 | s->adaptive_quant, s->qscale, s->slice_num); | ||
1469 | |||
1470 |
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2809 | if (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B || |
1471 |
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2809 | avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I || |
1472 |
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2809 | avctx->skip_frame >= AVDISCARD_ALL) |
1473 | ✗ | return 0; | |
1474 | |||
1475 |
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2809 | if (s->pict_type == AV_PICTURE_TYPE_B) { |
1476 | 4 | s->frame_num_offset = s->slice_num - s->prev_frame_num; | |
1477 | |||
1478 |
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4 | if (s->frame_num_offset < 0) |
1479 | ✗ | s->frame_num_offset += 256; | |
1480 |
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4 | if (s->frame_num_offset == 0 || |
1481 |
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4 | s->frame_num_offset >= s->prev_frame_num_offset) { |
1482 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "error in B-frame picture id\n"); | |
1483 | ✗ | return -1; | |
1484 | } | ||
1485 | } else { | ||
1486 | 2805 | s->prev_frame_num = s->frame_num; | |
1487 | 2805 | s->frame_num = s->slice_num; | |
1488 | 2805 | s->prev_frame_num_offset = s->frame_num - s->prev_frame_num; | |
1489 | |||
1490 |
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2805 | if (s->prev_frame_num_offset < 0) |
1491 | 10 | s->prev_frame_num_offset += 256; | |
1492 | } | ||
1493 | |||
1494 |
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8427 | for (m = 0; m < 2; m++) { |
1495 | int i; | ||
1496 |
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28090 | for (i = 0; i < 4; i++) { |
1497 | int j; | ||
1498 |
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134832 | for (j = -1; j < 4; j++) |
1499 | 112360 | s->ref_cache[m][scan8[0] + 8 * i + j] = 1; | |
1500 |
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22472 | if (i < 3) |
1501 | 16854 | s->ref_cache[m][scan8[0] + 8 * i + j] = PART_NOT_AVAILABLE; | |
1502 | } | ||
1503 | } | ||
1504 | |||
1505 |
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44944 | for (s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { |
1506 |
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884535 | for (s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { |
1507 | unsigned mb_type; | ||
1508 | 842400 | s->mb_xy = s->mb_x + s->mb_y * s->mb_stride; | |
1509 | |||
1510 |
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842400 | if ((get_bits_left(&s->gb_slice)) <= 7) { |
1511 |
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7694 | if (((get_bits_count(&s->gb_slice) & 7) == 0 || |
1512 | 3847 | show_bits(&s->gb_slice, get_bits_left(&s->gb_slice) & 7) == 0)) { | |
1513 | |||
1514 | ✗ | ret = svq3_decode_slice_header(avctx); | |
1515 | ✗ | if (ret < 0) | |
1516 | ✗ | return ret; | |
1517 | } | ||
1518 |
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3847 | if (s->slice_type != s->pict_type) { |
1519 | ✗ | avpriv_request_sample(avctx, "non constant slice type"); | |
1520 | } | ||
1521 | /* TODO: support s->mb_skip_run */ | ||
1522 | } | ||
1523 | |||
1524 | 842400 | mb_type = get_interleaved_ue_golomb(&s->gb_slice); | |
1525 | |||
1526 |
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842400 | if (s->pict_type == AV_PICTURE_TYPE_I) |
1527 | 19170 | mb_type += 8; | |
1528 |
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823230 | else if (s->pict_type == AV_PICTURE_TYPE_B && mb_type >= 4) |
1529 | 22 | mb_type += 4; | |
1530 |
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842400 | if (mb_type > 33 || svq3_decode_mb(s, mb_type)) { |
1531 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
1532 | "error while decoding MB %d %d\n", s->mb_x, s->mb_y); | ||
1533 | ✗ | return -1; | |
1534 | } | ||
1535 | |||
1536 |
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842400 | if (mb_type != 0 || s->cbp) |
1537 | 488580 | hl_decode_mb(s); | |
1538 | |||
1539 |
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842400 | if (s->pict_type != AV_PICTURE_TYPE_B && !s->low_delay) |
1540 | 841320 | s->cur_pic->mb_type[s->mb_x + s->mb_y * s->mb_stride] = | |
1541 |
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841320 | (s->pict_type == AV_PICTURE_TYPE_P && mb_type < 8) ? (mb_type - 1) : -1; |
1542 | } | ||
1543 | |||
1544 | 42135 | ff_draw_horiz_band(avctx, s->cur_pic->f, | |
1545 | 42075 | s->last_pic->f->data[0] ? s->last_pic->f : NULL, | |
1546 |
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42135 | 16 * s->mb_y, 16, PICT_FRAME, 0, |
1547 | s->low_delay); | ||
1548 | } | ||
1549 | |||
1550 | 2809 | left = buf_size*8 - get_bits_count(&s->gb_slice); | |
1551 | |||
1552 |
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2809 | if (s->mb_y != s->mb_height || s->mb_x != s->mb_width) { |
1553 | ✗ | av_log(avctx, AV_LOG_INFO, "frame num %"PRId64" incomplete pic x %d y %d left %d\n", avctx->frame_num, s->mb_y, s->mb_x, left); | |
1554 | //av_hex_dump(stderr, buf+buf_size-8, 8); | ||
1555 | } | ||
1556 | |||
1557 |
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2809 | if (left < 0) { |
1558 | ✗ | av_log(avctx, AV_LOG_ERROR, "frame num %"PRId64" left %d\n", avctx->frame_num, left); | |
1559 | ✗ | return -1; | |
1560 | } | ||
1561 | |||
1562 |
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2809 | if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) |
1563 | 4 | ret = av_frame_ref(rframe, s->cur_pic->f); | |
1564 |
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2805 | else if (s->last_pic->f->data[0]) |
1565 | 2801 | ret = av_frame_ref(rframe, s->last_pic->f); | |
1566 |
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2809 | if (ret < 0) |
1567 | ✗ | return ret; | |
1568 | |||
1569 | /* Do not output the last pic after seeking. */ | ||
1570 |
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2809 | if (s->last_pic->f->data[0] || s->low_delay) |
1571 | 2805 | *got_frame = 1; | |
1572 | |||
1573 |
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2809 | if (s->pict_type != AV_PICTURE_TYPE_B) { |
1574 | 2805 | FFSWAP(SVQ3Frame*, s->cur_pic, s->next_pic); | |
1575 | } else { | ||
1576 | 4 | av_frame_unref(s->cur_pic->f); | |
1577 | } | ||
1578 | |||
1579 | 2809 | return buf_size; | |
1580 | } | ||
1581 | |||
1582 | 8 | static av_cold int svq3_decode_end(AVCodecContext *avctx) | |
1583 | { | ||
1584 | 8 | SVQ3Context *s = avctx->priv_data; | |
1585 | |||
1586 |
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32 | for (int i = 0; i < NUM_PICS; i++) |
1587 | 24 | av_frame_free(&s->frames[i].f); | |
1588 | 8 | av_freep(&s->motion_val_buf); | |
1589 | 8 | av_freep(&s->mb_type_buf); | |
1590 | 8 | av_freep(&s->slice_buf); | |
1591 | 8 | av_freep(&s->intra4x4_pred_mode); | |
1592 | 8 | av_freep(&s->edge_emu_buffer); | |
1593 | 8 | av_freep(&s->mb2br_xy); | |
1594 | |||
1595 | 8 | return 0; | |
1596 | } | ||
1597 | |||
1598 | const FFCodec ff_svq3_decoder = { | ||
1599 | .p.name = "svq3", | ||
1600 | CODEC_LONG_NAME("Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3"), | ||
1601 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1602 | .p.id = AV_CODEC_ID_SVQ3, | ||
1603 | .priv_data_size = sizeof(SVQ3Context), | ||
1604 | .init = svq3_decode_init, | ||
1605 | .close = svq3_decode_end, | ||
1606 | FF_CODEC_DECODE_CB(svq3_decode_frame), | ||
1607 | .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | | ||
1608 | AV_CODEC_CAP_DR1 | | ||
1609 | AV_CODEC_CAP_DELAY, | ||
1610 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1611 | }; | ||
1612 |