FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/svq3.c
Date: 2022-07-07 01:21:54
Exec Total Coverage
Lines: 680 827 82.2%
Branches: 437 563 77.6%
Line Branch Exec Source
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_internal.h"
48
49 #include "codec_internal.h"
50 #include "internal.h"
51 #include "avcodec.h"
52 #include "mpegutils.h"
53 #include "h264data.h"
54 #include "h264dsp.h"
55 #include "h264pred.h"
56 #include "h264_parse.h"
57 #include "golomb.h"
58 #include "hpeldsp.h"
59 #include "mathops.h"
60 #include "rectangle.h"
61 #include "tpeldsp.h"
62 #include "videodsp.h"
63
64 #if CONFIG_ZLIB
65 #include <zlib.h>
66 #endif
67
68 #include "svq1.h"
69
70 /**
71 * @file
72 * svq3 decoder.
73 */
74
75 typedef struct SVQ3Frame {
76 AVFrame *f;
77
78 int16_t (*motion_val_buf[2])[2];
79 int16_t (*motion_val[2])[2];
80
81 uint32_t *mb_type_buf, *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 last_frame_output;
108 int slice_num;
109 int qscale;
110 int cbp;
111 int frame_num;
112 int frame_num_offset;
113 int prev_frame_num_offset;
114 int prev_frame_num;
115
116 enum AVPictureType pict_type;
117 enum AVPictureType slice_type;
118 int low_delay;
119
120 int mb_x, mb_y;
121 int mb_xy;
122 int mb_width, mb_height;
123 int mb_stride, mb_num;
124 int b_stride;
125
126 uint32_t *mb2br_xy;
127
128 int chroma_pred_mode;
129 int intra16x16_pred_mode;
130
131 int8_t intra4x4_pred_mode_cache[5 * 8];
132 int8_t (*intra4x4_pred_mode);
133
134 unsigned int top_samples_available;
135 unsigned int left_samples_available;
136
137 uint8_t *edge_emu_buffer;
138
139 DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2];
140 DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8];
141 DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2];
142 DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
143 DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8];
144 uint32_t dequant4_coeff[QP_MAX_NUM + 1][16];
145 int block_offset[2 * (16 * 3)];
146 SVQ3Frame frames[3];
147 } SVQ3Context;
148
149 #define FULLPEL_MODE 1
150 #define HALFPEL_MODE 2
151 #define THIRDPEL_MODE 3
152 #define PREDICT_MODE 4
153
154 /* dual scan (from some older H.264 draft)
155 * o-->o-->o o
156 * | /|
157 * o o o / o
158 * | / | |/ |
159 * o o o o
160 * /
161 * o-->o-->o-->o
162 */
163 static const uint8_t svq3_scan[16] = {
164 0 + 0 * 4, 1 + 0 * 4, 2 + 0 * 4, 2 + 1 * 4,
165 2 + 2 * 4, 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4,
166 0 + 1 * 4, 0 + 2 * 4, 1 + 1 * 4, 1 + 2 * 4,
167 0 + 3 * 4, 1 + 3 * 4, 2 + 3 * 4, 3 + 3 * 4,
168 };
169
170 static const uint8_t luma_dc_zigzag_scan[16] = {
171 0 * 16 + 0 * 64, 1 * 16 + 0 * 64, 2 * 16 + 0 * 64, 0 * 16 + 2 * 64,
172 3 * 16 + 0 * 64, 0 * 16 + 1 * 64, 1 * 16 + 1 * 64, 2 * 16 + 1 * 64,
173 1 * 16 + 2 * 64, 2 * 16 + 2 * 64, 3 * 16 + 2 * 64, 0 * 16 + 3 * 64,
174 3 * 16 + 1 * 64, 1 * 16 + 3 * 64, 2 * 16 + 3 * 64, 3 * 16 + 3 * 64,
175 };
176
177 static const uint8_t svq3_pred_0[25][2] = {
178 { 0, 0 },
179 { 1, 0 }, { 0, 1 },
180 { 0, 2 }, { 1, 1 }, { 2, 0 },
181 { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 },
182 { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 },
183 { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 },
184 { 2, 4 }, { 3, 3 }, { 4, 2 },
185 { 4, 3 }, { 3, 4 },
186 { 4, 4 }
187 };
188
189 static const int8_t svq3_pred_1[6][6][5] = {
190 { { 2, -1, -1, -1, -1 }, { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 },
191 { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 }, { 1, 2, -1, -1, -1 } },
192 { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 },
193 { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } },
194 { { 2, 0, -1, -1, -1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 },
195 { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } },
196 { { 2, 0, -1, -1, -1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 },
197 { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } },
198 { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 },
199 { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } },
200 { { 0, 2, -1, -1, -1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 },
201 { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } },
202 };
203
204 static const struct {
205 uint8_t run;
206 uint8_t level;
207 } svq3_dct_tables[2][16] = {
208 { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 },
209 { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } },
210 { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 },
211 { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } }
212 };
213
214 static const uint32_t svq3_dequant_coeff[32] = {
215 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718,
216 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873,
217 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683,
218 61694, 68745, 77615, 89113, 100253, 109366, 126635, 141533
219 };
220
221 2537 static void svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
222 {
223 2537 const unsigned qmul = svq3_dequant_coeff[qp];
224 #define stride 16
225 int i;
226 int temp[16];
227 static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride };
228
229
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 12685 for (i = 0; i < 4; i++) {
230 10148 const int z0 = 13 * (input[4 * i + 0] + input[4 * i + 2]);
231 10148 const int z1 = 13 * (input[4 * i + 0] - input[4 * i + 2]);
232 10148 const int z2 = 7 * input[4 * i + 1] - 17 * input[4 * i + 3];
233 10148 const int z3 = 17 * input[4 * i + 1] + 7 * input[4 * i + 3];
234
235 10148 temp[4 * i + 0] = z0 + z3;
236 10148 temp[4 * i + 1] = z1 + z2;
237 10148 temp[4 * i + 2] = z1 - z2;
238 10148 temp[4 * i + 3] = z0 - z3;
239 }
240
241
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 12685 for (i = 0; i < 4; i++) {
242 10148 const int offset = x_offset[i];
243 10148 const int z0 = 13 * (temp[4 * 0 + i] + temp[4 * 2 + i]);
244 10148 const int z1 = 13 * (temp[4 * 0 + i] - temp[4 * 2 + i]);
245 10148 const int z2 = 7 * temp[4 * 1 + i] - 17 * temp[4 * 3 + i];
246 10148 const int z3 = 17 * temp[4 * 1 + i] + 7 * temp[4 * 3 + i];
247
248 10148 output[stride * 0 + offset] = (int)((z0 + z3) * qmul + 0x80000) >> 20;
249 10148 output[stride * 2 + offset] = (int)((z1 + z2) * qmul + 0x80000) >> 20;
250 10148 output[stride * 8 + offset] = (int)((z1 - z2) * qmul + 0x80000) >> 20;
251 10148 output[stride * 10 + offset] = (int)((z0 - z3) * qmul + 0x80000) >> 20;
252 }
253 2537 }
254 #undef stride
255
256 4012263 static void svq3_add_idct_c(uint8_t *dst, int16_t *block,
257 int stride, int qp, int dc)
258 {
259 4012263 const int qmul = svq3_dequant_coeff[qp];
260 int i;
261
262
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 4012263 if (dc) {
263
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 998567 dc = 13 * 13 * (dc == 1 ? 1538U* block[0]
264 972473 : qmul * (block[0] >> 3) / 2);
265 998567 block[0] = 0;
266 }
267
268
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 20061315 for (i = 0; i < 4; i++) {
269 16049052 const int z0 = 13 * (block[0 + 4 * i] + block[2 + 4 * i]);
270 16049052 const int z1 = 13 * (block[0 + 4 * i] - block[2 + 4 * i]);
271 16049052 const int z2 = 7 * block[1 + 4 * i] - 17 * block[3 + 4 * i];
272 16049052 const int z3 = 17 * block[1 + 4 * i] + 7 * block[3 + 4 * i];
273
274 16049052 block[0 + 4 * i] = z0 + z3;
275 16049052 block[1 + 4 * i] = z1 + z2;
276 16049052 block[2 + 4 * i] = z1 - z2;
277 16049052 block[3 + 4 * i] = z0 - z3;
278 }
279
280
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 20061315 for (i = 0; i < 4; i++) {
281 16049052 const unsigned z0 = 13 * (block[i + 4 * 0] + block[i + 4 * 2]);
282 16049052 const unsigned z1 = 13 * (block[i + 4 * 0] - block[i + 4 * 2]);
283 16049052 const unsigned z2 = 7 * block[i + 4 * 1] - 17 * block[i + 4 * 3];
284 16049052 const unsigned z3 = 17 * block[i + 4 * 1] + 7 * block[i + 4 * 3];
285 16049052 const int rr = (dc + 0x80000u);
286
287 16049052 dst[i + stride * 0] = av_clip_uint8(dst[i + stride * 0] + ((int)((z0 + z3) * qmul + rr) >> 20));
288 16049052 dst[i + stride * 1] = av_clip_uint8(dst[i + stride * 1] + ((int)((z1 + z2) * qmul + rr) >> 20));
289 16049052 dst[i + stride * 2] = av_clip_uint8(dst[i + stride * 2] + ((int)((z1 - z2) * qmul + rr) >> 20));
290 16049052 dst[i + stride * 3] = av_clip_uint8(dst[i + stride * 3] + ((int)((z0 - z3) * qmul + rr) >> 20));
291 }
292
293 4012263 memset(block, 0, 16 * sizeof(int16_t));
294 4012263 }
295
296 3880617 static inline int svq3_decode_block(GetBitContext *gb, int16_t *block,
297 int index, const int type)
298 {
299 static const uint8_t *const scan_patterns[4] = {
300 luma_dc_zigzag_scan, ff_zigzag_scan, svq3_scan, ff_h264_chroma_dc_scan
301 };
302
303 int run, level, sign, limit;
304 unsigned vlc;
305 3880617 const int intra = 3 * type >> 2;
306 3880617 const uint8_t *const scan = scan_patterns[type];
307
308
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 5000433 for (limit = (16 >> intra); index < 16; index = limit, limit += 8) {
309
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 9817031 for (; (vlc = get_interleaved_ue_golomb(gb)) != 0; index++) {
310
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 5376506 if ((int32_t)vlc < 0)
311 ✗ return -1;
312
313
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 5376506 sign = (vlc & 1) ? 0 : -1;
314 5376506 vlc = vlc + 1 >> 1;
315
316
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 5376506 if (type == 3) {
317
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 249567 if (vlc < 3) {
318 168966 run = 0;
319 168966 level = vlc;
320
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 80601 } else if (vlc < 4) {
321 34195 run = 1;
322 34195 level = 1;
323 } else {
324 46406 run = vlc & 0x3;
325 46406 level = (vlc + 9 >> 2) - run;
326 }
327 } else {
328
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 5126939 if (vlc < 16U) {
329 5034539 run = svq3_dct_tables[intra][vlc].run;
330 5034539 level = svq3_dct_tables[intra][vlc].level;
331
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 92400 } else if (intra) {
332 8622 run = vlc & 0x7;
333
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 8622 level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1)));
334 } else {
335 83778 run = vlc & 0xF;
336
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 83778 level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0)));
337 }
338 }
339
340
341
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 5376506 if ((index += run) >= limit)
342 ✗ return -1;
343
344 5376506 block[scan[index]] = (level ^ sign) - sign;
345 }
346
347
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 4440525 if (type != 2) {
348 3320709 break;
349 }
350 }
351
352 3880617 return 0;
353 }
354
355 static av_always_inline int
356 556200 svq3_fetch_diagonal_mv(const SVQ3Context *s, const int16_t **C,
357 int i, int list, int part_width)
358 {
359 556200 const int topright_ref = s->ref_cache[list][i - 8 + part_width];
360
361
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 556200 if (topright_ref != PART_NOT_AVAILABLE) {
362 474763 *C = s->mv_cache[list][i - 8 + part_width];
363 474763 return topright_ref;
364 } else {
365 81437 *C = s->mv_cache[list][i - 8 - 1];
366 81437 return s->ref_cache[list][i - 8 - 1];
367 }
368 }
369
370 /**
371 * Get the predicted MV.
372 * @param n the block index
373 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
374 * @param mx the x component of the predicted motion vector
375 * @param my the y component of the predicted motion vector
376 */
377 556200 static av_always_inline void svq3_pred_motion(const SVQ3Context *s, int n,
378 int part_width, int list,
379 int ref, int *const mx, int *const my)
380 {
381 556200 const int index8 = scan8[n];
382 556200 const int top_ref = s->ref_cache[list][index8 - 8];
383 556200 const int left_ref = s->ref_cache[list][index8 - 1];
384 556200 const int16_t *const A = s->mv_cache[list][index8 - 1];
385 556200 const int16_t *const B = s->mv_cache[list][index8 - 8];
386 const int16_t *C;
387 int diagonal_ref, match_count;
388
389 /* mv_cache
390 * B . . A T T T T
391 * U . . L . . , .
392 * U . . L . . . .
393 * U . . L . . , .
394 * . . . L . . . .
395 */
396
397 556200 diagonal_ref = svq3_fetch_diagonal_mv(s, &C, index8, list, part_width);
398 556200 match_count = (diagonal_ref == ref) + (top_ref == ref) + (left_ref == ref);
399
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 556200 if (match_count > 1) { //most common
400 532412 *mx = mid_pred(A[0], B[0], C[0]);
401 532412 *my = mid_pred(A[1], B[1], C[1]);
402
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 23788 } else if (match_count == 1) {
403
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 23788 if (left_ref == ref) {
404 23788 *mx = A[0];
405 23788 *my = A[1];
406 ✗ } else if (top_ref == ref) {
407 ✗ *mx = B[0];
408 ✗ *my = B[1];
409 } else {
410 ✗ *mx = C[0];
411 ✗ *my = C[1];
412 }
413 } else {
414 ✗ if (top_ref == PART_NOT_AVAILABLE &&
415 ✗ diagonal_ref == PART_NOT_AVAILABLE &&
416 left_ref != PART_NOT_AVAILABLE) {
417 ✗ *mx = A[0];
418 ✗ *my = A[1];
419 } else {
420 ✗ *mx = mid_pred(A[0], B[0], C[0]);
421 ✗ *my = mid_pred(A[1], B[1], C[1]);
422 }
423 }
424 556200 }
425
426 911088 static inline void svq3_mc_dir_part(SVQ3Context *s,
427 int x, int y, int width, int height,
428 int mx, int my, int dxy,
429 int thirdpel, int dir, int avg)
430 {
431
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 911088 const SVQ3Frame *pic = (dir == 0) ? s->last_pic : s->next_pic;
432 uint8_t *src, *dest;
433 911088 int i, emu = 0;
434 911088 int blocksize = 2 - (width >> 3); // 16->0, 8->1, 4->2
435 911088 int linesize = s->cur_pic->f->linesize[0];
436 911088 int uvlinesize = s->cur_pic->f->linesize[1];
437
438 911088 mx += x;
439 911088 my += y;
440
441
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 911088 if (mx < 0 || mx >= s->h_edge_pos - width - 1 ||
442
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 869995 my < 0 || my >= s->v_edge_pos - height - 1) {
443 88647 emu = 1;
444 88647 mx = av_clip(mx, -16, s->h_edge_pos - width + 15);
445 88647 my = av_clip(my, -16, s->v_edge_pos - height + 15);
446 }
447
448 /* form component predictions */
449 911088 dest = s->cur_pic->f->data[0] + x + y * linesize;
450 911088 src = pic->f->data[0] + mx + my * linesize;
451
452
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 911088 if (emu) {
453 88647 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
454 linesize, linesize,
455 width + 1, height + 1,
456 mx, my, s->h_edge_pos, s->v_edge_pos);
457 88647 src = s->edge_emu_buffer;
458 }
459
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 911088 if (thirdpel)
460 (avg ? s->tdsp.avg_tpel_pixels_tab
461
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 182 : s->tdsp.put_tpel_pixels_tab)[dxy](dest, src, linesize,
462 width, height);
463 else
464 (avg ? s->hdsp.avg_pixels_tab
465
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 910906 : s->hdsp.put_pixels_tab)[blocksize][dxy](dest, src, linesize,
466 height);
467
468
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 911088 if (!(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
469 911088 mx = mx + (mx < (int) x) >> 1;
470 911088 my = my + (my < (int) y) >> 1;
471 911088 width = width >> 1;
472 911088 height = height >> 1;
473 911088 blocksize++;
474
475
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✓ Branch 1 taken 911088 times.
 2733264 for (i = 1; i < 3; i++) {
476 1822176 dest = s->cur_pic->f->data[i] + (x >> 1) + (y >> 1) * uvlinesize;
477 1822176 src = pic->f->data[i] + mx + my * uvlinesize;
478
479
2/2
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✓ Branch 1 taken 1644882 times.
 1822176 if (emu) {
480 177294 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
481 uvlinesize, uvlinesize,
482 width + 1, height + 1,
483 177294 mx, my, (s->h_edge_pos >> 1),
484 177294 s->v_edge_pos >> 1);
485 177294 src = s->edge_emu_buffer;
486 }
487
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 1822176 if (thirdpel)
488 (avg ? s->tdsp.avg_tpel_pixels_tab
489
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 364 : s->tdsp.put_tpel_pixels_tab)[dxy](dest, src,
490 uvlinesize,
491 width, height);
492 else
493 (avg ? s->hdsp.avg_pixels_tab
494
2/2
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 1821812 : s->hdsp.put_pixels_tab)[blocksize][dxy](dest, src,
495 uvlinesize,
496 height);
497 }
498 }
499 911088 }
500
501 438655 static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode,
502 int dir, int avg)
503 {
504 int i, j, k, mx, my, dx, dy, x, y;
505
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 438655 const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1);
506 438655 const int part_height = 16 >> ((unsigned)(size + 1) / 3);
507
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 438655 const int extra_width = (mode == PREDICT_MODE) ? -16 * 6 : 0;
508 438655 const int h_edge_pos = 6 * (s->h_edge_pos - part_width) - extra_width;
509 438655 const int v_edge_pos = 6 * (s->v_edge_pos - part_height) - extra_width;
510
511
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 916793 for (i = 0; i < 16; i += part_height)
512
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✓ Branch 1 taken 478138 times.
 1035376 for (j = 0; j < 16; j += part_width) {
513 557238 const int b_xy = (4 * s->mb_x + (j >> 2)) +
514 557238 (4 * s->mb_y + (i >> 2)) * s->b_stride;
515 int dxy;
516 557238 x = 16 * s->mb_x + j;
517 557238 y = 16 * s->mb_y + i;
518 557238 k = (j >> 2 & 1) + (i >> 1 & 2) +
519 557238 (j >> 1 & 4) + (i & 8);
520
521
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 557238 if (mode != PREDICT_MODE) {
522 556200 svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my);
523 } else {
524 1038 mx = s->next_pic->motion_val[0][b_xy][0] * 2;
525 1038 my = s->next_pic->motion_val[0][b_xy][1] * 2;
526
527
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✓ Branch 1 taken 519 times.
 1038 if (dir == 0) {
528 519 mx = mx * s->frame_num_offset /
529 519 s->prev_frame_num_offset + 1 >> 1;
530 519 my = my * s->frame_num_offset /
531 519 s->prev_frame_num_offset + 1 >> 1;
532 } else {
533 519 mx = mx * (s->frame_num_offset - s->prev_frame_num_offset) /
534 519 s->prev_frame_num_offset + 1 >> 1;
535 519 my = my * (s->frame_num_offset - s->prev_frame_num_offset) /
536 519 s->prev_frame_num_offset + 1 >> 1;
537 }
538 }
539
540 /* clip motion vector prediction to frame border */
541 557238 mx = av_clip(mx, extra_width - 6 * x, h_edge_pos - 6 * x);
542 557238 my = av_clip(my, extra_width - 6 * y, v_edge_pos - 6 * y);
543
544 /* get (optional) motion vector differential */
545
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 557238 if (mode == PREDICT_MODE) {
546 1038 dx = dy = 0;
547 } else {
548 556200 dy = get_interleaved_se_golomb(&s->gb_slice);
549 556200 dx = get_interleaved_se_golomb(&s->gb_slice);
550
551
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 556200 if (dx != (int16_t)dx || dy != (int16_t)dy) {
552 ✗ av_log(s->avctx, AV_LOG_ERROR, "invalid MV vlc\n");
553 ✗ return -1;
554 }
555 }
556
557 /* compute motion vector */
558
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 557238 if (mode == THIRDPEL_MODE) {
559 int fx, fy;
560 182 mx = (mx + 1 >> 1) + dx;
561 182 my = (my + 1 >> 1) + dy;
562 182 fx = (unsigned)(mx + 0x30000) / 3 - 0x10000;
563 182 fy = (unsigned)(my + 0x30000) / 3 - 0x10000;
564 182 dxy = (mx - 3 * fx) + 4 * (my - 3 * fy);
565
566 182 svq3_mc_dir_part(s, x, y, part_width, part_height,
567 fx, fy, dxy, 1, dir, avg);
568 182 mx += mx;
569 182 my += my;
570
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 557056 } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) {
571 276056 mx = (unsigned)(mx + 1 + 0x30000) / 3 + dx - 0x10000;
572 276056 my = (unsigned)(my + 1 + 0x30000) / 3 + dy - 0x10000;
573 276056 dxy = (mx & 1) + 2 * (my & 1);
574
575 276056 svq3_mc_dir_part(s, x, y, part_width, part_height,
576 mx >> 1, my >> 1, dxy, 0, dir, avg);
577 276056 mx *= 3;
578 276056 my *= 3;
579 } else {
580 281000 mx = (unsigned)(mx + 3 + 0x60000) / 6 + dx - 0x10000;
581 281000 my = (unsigned)(my + 3 + 0x60000) / 6 + dy - 0x10000;
582
583 281000 svq3_mc_dir_part(s, x, y, part_width, part_height,
584 mx, my, 0, 0, dir, avg);
585 281000 mx *= 6;
586 281000 my *= 6;
587 }
588
589 /* update mv_cache */
590
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 557238 if (mode != PREDICT_MODE) {
591 556200 int32_t mv = pack16to32(mx, my);
592
593
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✓ Branch 3 taken 78775 times.
 556200 if (part_height == 8 && i < 8) {
594 78775 AV_WN32A(s->mv_cache[dir][scan8[k] + 1 * 8], mv);
595
596
4/4
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✓ Branch 3 taken 39348 times.
 78775 if (part_width == 8 && j < 8)
597 39348 AV_WN32A(s->mv_cache[dir][scan8[k] + 1 + 1 * 8], mv);
598 }
599
4/4
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 556200 if (part_width == 8 && j < 8)
600 78808 AV_WN32A(s->mv_cache[dir][scan8[k] + 1], mv);
601
4/4
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 556200 if (part_width == 4 || part_height == 4)
602 184 AV_WN32A(s->mv_cache[dir][scan8[k]], mv);
603 }
604
605 /* write back motion vectors */
606 557238 fill_rectangle(s->cur_pic->motion_val[dir][b_xy],
607 part_width >> 2, part_height >> 2, s->b_stride,
608 pack16to32(mx, my), 4);
609 }
610
611 438655 return 0;
612 }
613
614 488398 static av_always_inline void hl_decode_mb_idct_luma(SVQ3Context *s,
615 int mb_type, const int *block_offset,
616 int linesize, uint8_t *dest_y)
617 {
618 int i;
619
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 488398 if (!IS_INTRA4x4(mb_type)) {
620
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 7486545 for (i = 0; i < 16; i++)
621
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✓ Branch 2 taken 22222 times.
✓ Branch 3 taken 4566434 times.
 7046160 if (s->non_zero_count_cache[scan8[i]] || s->mb[i * 16]) {
622 2479726 uint8_t *const ptr = dest_y + block_offset[i];
623 2479726 svq3_add_idct_c(ptr, s->mb + i * 16, linesize,
624 2479726 s->qscale, IS_INTRA(mb_type) ? 1 : 0);
625 }
626 }
627 488398 }
628
629 50550 static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s,
630 int mb_type,
631 const int *block_offset,
632 int linesize,
633 uint8_t *dest_y)
634 {
635 int i;
636 50550 int qscale = s->qscale;
637
638
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 50550 if (IS_INTRA4x4(mb_type)) {
639
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 816221 for (i = 0; i < 16; i++) {
640 768208 uint8_t *const ptr = dest_y + block_offset[i];
641 768208 const int dir = s->intra4x4_pred_mode_cache[scan8[i]];
642
643 uint8_t *topright;
644 int nnz;
645
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 768208 if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
646 av_assert2(s->mb_y || linesize <= block_offset[i]);
647 52949 topright = ptr + 4 - linesize;
648 } else
649 715259 topright = NULL;
650
651 768208 s->hpc.pred4x4[dir](ptr, topright, linesize);
652 768208 nnz = s->non_zero_count_cache[scan8[i]];
653
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✓ Branch 1 taken 208144 times.
 768208 if (nnz) {
654 560064 svq3_add_idct_c(ptr, s->mb + i * 16, linesize, qscale, 0);
655 }
656 }
657 } else {
658 2537 s->hpc.pred16x16[s->intra16x16_pred_mode](dest_y, linesize);
659 2537 svq3_luma_dc_dequant_idct_c(s->mb, s->mb_luma_dc[0], qscale);
660 }
661 50550 }
662
663 488398 static void hl_decode_mb(SVQ3Context *s)
664 {
665 488398 const int mb_x = s->mb_x;
666 488398 const int mb_y = s->mb_y;
667 488398 const int mb_xy = s->mb_xy;
668 488398 const int mb_type = s->cur_pic->mb_type[mb_xy];
669 uint8_t *dest_y, *dest_cb, *dest_cr;
670 int linesize, uvlinesize;
671 int i, j;
672 488398 const int *block_offset = &s->block_offset[0];
673 488398 const int block_h = 16 >> 1;
674
675 488398 linesize = s->cur_pic->f->linesize[0];
676 488398 uvlinesize = s->cur_pic->f->linesize[1];
677
678 488398 dest_y = s->cur_pic->f->data[0] + (mb_x + mb_y * linesize) * 16;
679 488398 dest_cb = s->cur_pic->f->data[1] + mb_x * 8 + mb_y * uvlinesize * block_h;
680 488398 dest_cr = s->cur_pic->f->data[2] + mb_x * 8 + mb_y * uvlinesize * block_h;
681
682 488398 s->vdsp.prefetch(dest_y + (s->mb_x & 3) * 4 * linesize + 64, linesize, 4);
683 488398 s->vdsp.prefetch(dest_cb + (s->mb_x & 7) * uvlinesize + 64, dest_cr - dest_cb, 2);
684
685
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 488398 if (IS_INTRA(mb_type)) {
686 50550 s->hpc.pred8x8[s->chroma_pred_mode](dest_cb, uvlinesize);
687 50550 s->hpc.pred8x8[s->chroma_pred_mode](dest_cr, uvlinesize);
688
689 50550 hl_decode_mb_predict_luma(s, mb_type, block_offset, linesize, dest_y);
690 }
691
692 488398 hl_decode_mb_idct_luma(s, mb_type, block_offset, linesize, dest_y);
693
694
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✓ Branch 1 taken 329222 times.
 488398 if (s->cbp & 0x30) {
695 159176 uint8_t *dest[2] = { dest_cb, dest_cr };
696 159176 s->h264dsp.h264_chroma_dc_dequant_idct(s->mb + 16 * 16 * 1,
697 159176 s->dequant4_coeff[4][0]);
698 159176 s->h264dsp.h264_chroma_dc_dequant_idct(s->mb + 16 * 16 * 2,
699 159176 s->dequant4_coeff[4][0]);
700
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✓ Branch 1 taken 159176 times.
 477528 for (j = 1; j < 3; j++) {
701
2/2
✓ Branch 0 taken 1273408 times.
✓ Branch 1 taken 318352 times.
 1591760 for (i = j * 16; i < j * 16 + 4; i++)
702
4/4
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✓ Branch 1 taken 542160 times.
✓ Branch 2 taken 430313 times.
✓ Branch 3 taken 300935 times.
 1273408 if (s->non_zero_count_cache[scan8[i]] || s->mb[i * 16]) {
703 972473 uint8_t *const ptr = dest[j - 1] + block_offset[i];
704 972473 svq3_add_idct_c(ptr, s->mb + i * 16,
705 972473 uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
706 }
707 }
708 }
709 488398 }
710
711 842100 static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
712 {
713 int i, j, k, m, dir, mode;
714 842100 int cbp = 0;
715 uint32_t vlc;
716 int8_t *top, *left;
717 842100 const int mb_xy = s->mb_xy;
718 842100 const int b_xy = 4 * s->mb_x + 4 * s->mb_y * s->b_stride;
719
720
2/2
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✓ Branch 1 taken 785960 times.
 842100 s->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
721
2/2
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✓ Branch 1 taken 799980 times.
 842100 s->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
722
723
2/2
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✓ Branch 1 taken 488338 times.
 842100 if (mb_type == 0) { /* SKIP */
724
2/2
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✓ Branch 1 taken 352888 times.
 353762 if (s->pict_type == AV_PICTURE_TYPE_P ||
725
2/2
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✓ Branch 1 taken 393 times.
 874 s->next_pic->mb_type[mb_xy] == -1) {
726 353369 svq3_mc_dir_part(s, 16 * s->mb_x, 16 * s->mb_y, 16, 16,
727 0, 0, 0, 0, 0, 0);
728
729
2/2
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✓ Branch 1 taken 352888 times.
 353369 if (s->pict_type == AV_PICTURE_TYPE_B)
730 481 svq3_mc_dir_part(s, 16 * s->mb_x, 16 * s->mb_y, 16, 16,
731 0, 0, 0, 0, 1, 1);
732
733 353369 mb_type = MB_TYPE_SKIP;
734 } else {
735 393 mb_type = FFMIN(s->next_pic->mb_type[mb_xy], 6);
736
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 393 if (svq3_mc_dir(s, mb_type, PREDICT_MODE, 0, 0) < 0)
737 ✗ return -1;
738
1/2
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 393 if (svq3_mc_dir(s, mb_type, PREDICT_MODE, 1, 1) < 0)
739 ✗ return -1;
740
741 393 mb_type = MB_TYPE_16x16;
742 }
743
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 488338 } else if (mb_type < 8) { /* INTER */
744
4/4
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✓ Branch 1 taken 436955 times.
✓ Branch 3 taken 129 times.
✓ Branch 4 taken 704 times.
 437788 if (s->thirdpel_flag && s->halfpel_flag == !get_bits1(&s->gb_slice))
745 129 mode = THIRDPEL_MODE;
746
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✗ Branch 1 not taken.
 437659 else if (s->halfpel_flag &&
747
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✓ Branch 2 taken 240699 times.
 437659 s->thirdpel_flag == !get_bits1(&s->gb_slice))
748 196960 mode = HALFPEL_MODE;
749 else
750 240699 mode = FULLPEL_MODE;
751
752 /* fill caches */
753 /* note ref_cache should contain here:
754 * ????????
755 * ???11111
756 * N??11111
757 * N??11111
758 * N??11111
759 */
760
761
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✓ Branch 1 taken 184 times.
 438156 for (m = 0; m < 2; m++) {
762
3/4
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✓ Branch 1 taken 16741 times.
✓ Branch 2 taken 421231 times.
✗ Branch 3 not taken.
 437972 if (s->mb_x > 0 && s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - 1] + 6] != -1) {
763
2/2
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✓ Branch 1 taken 421231 times.
 2106155 for (i = 0; i < 4; i++)
764 1684924 AV_COPY32(s->mv_cache[m][scan8[0] - 1 + i * 8],
765 s->cur_pic->motion_val[m][b_xy - 1 + i * s->b_stride]);
766 } else {
767
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 83705 for (i = 0; i < 4; i++)
768 66964 AV_ZERO32(s->mv_cache[m][scan8[0] - 1 + i * 8]);
769 }
770
2/2
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✓ Branch 1 taken 22889 times.
 437972 if (s->mb_y > 0) {
771 415083 memcpy(s->mv_cache[m][scan8[0] - 1 * 8],
772 415083 s->cur_pic->motion_val[m][b_xy - s->b_stride],
773 4 * 2 * sizeof(int16_t));
774 415083 memset(&s->ref_cache[m][scan8[0] - 1 * 8],
775
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✓ Branch 1 taken 415083 times.
 415083 (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1, 4);
776
777
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✓ Branch 1 taken 18228 times.
 415083 if (s->mb_x < s->mb_width - 1) {
778 396855 AV_COPY32(s->mv_cache[m][scan8[0] + 4 - 1 * 8],
779 s->cur_pic->motion_val[m][b_xy - s->b_stride + 4]);
780 396855 s->ref_cache[m][scan8[0] + 4 - 1 * 8] =
781
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✗ Branch 1 not taken.
 396855 (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride + 1] + 6] == -1 ||
782
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✓ Branch 1 taken 396855 times.
 396855 s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1;
783 } else
784 18228 s->ref_cache[m][scan8[0] + 4 - 1 * 8] = PART_NOT_AVAILABLE;
785
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✓ Branch 1 taken 15825 times.
 415083 if (s->mb_x > 0) {
786 399258 AV_COPY32(s->mv_cache[m][scan8[0] - 1 - 1 * 8],
787 s->cur_pic->motion_val[m][b_xy - s->b_stride - 1]);
788 399258 s->ref_cache[m][scan8[0] - 1 - 1 * 8] =
789
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 399258 (s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] == -1) ? PART_NOT_AVAILABLE : 1;
790 } else
791 15825 s->ref_cache[m][scan8[0] - 1 - 1 * 8] = PART_NOT_AVAILABLE;
792 } else
793 22889 memset(&s->ref_cache[m][scan8[0] - 1 * 8 - 1],
794 PART_NOT_AVAILABLE, 8);
795
796
2/2
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✓ Branch 1 taken 368 times.
 437972 if (s->pict_type != AV_PICTURE_TYPE_B)
797 437604 break;
798 }
799
800 /* decode motion vector(s) and form prediction(s) */
801
2/2
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✓ Branch 1 taken 184 times.
 437788 if (s->pict_type == AV_PICTURE_TYPE_P) {
802
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✓ Branch 2 taken 437604 times.
 437604 if (svq3_mc_dir(s, mb_type - 1, mode, 0, 0) < 0)
803 ✗ return -1;
804 } else { /* AV_PICTURE_TYPE_B */
805
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✓ Branch 1 taken 50 times.
 184 if (mb_type != 2) {
806
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 134 if (svq3_mc_dir(s, 0, mode, 0, 0) < 0)
807 ✗ return -1;
808 } else {
809
2/2
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 250 for (i = 0; i < 4; i++)
810 200 memset(s->cur_pic->motion_val[0][b_xy + i * s->b_stride],
811 0, 4 * 2 * sizeof(int16_t));
812 }
813
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✓ Branch 1 taken 53 times.
 184 if (mb_type != 1) {
814
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 131 if (svq3_mc_dir(s, 0, mode, 1, mb_type == 3) < 0)
815 ✗ return -1;
816 } else {
817
2/2
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✓ Branch 1 taken 53 times.
 265 for (i = 0; i < 4; i++)
818 212 memset(s->cur_pic->motion_val[1][b_xy + i * s->b_stride],
819 0, 4 * 2 * sizeof(int16_t));
820 }
821 }
822
823 437788 mb_type = MB_TYPE_16x16;
824
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 50550 } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */
825 48013 int8_t *i4x4 = s->intra4x4_pred_mode + s->mb2br_xy[s->mb_xy];
826 48013 int8_t *i4x4_cache = s->intra4x4_pred_mode_cache;
827
828 48013 memset(s->intra4x4_pred_mode_cache, -1, 8 * 5 * sizeof(int8_t));
829
830
1/2
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✗ Branch 1 not taken.
 48013 if (mb_type == 8) {
831
2/2
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✓ Branch 1 taken 3999 times.
 48013 if (s->mb_x > 0) {
832
2/2
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 220070 for (i = 0; i < 4; i++)
833 176056 s->intra4x4_pred_mode_cache[scan8[0] - 1 + i * 8] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - 1] + 6 - i];
834
1/2
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 44014 if (s->intra4x4_pred_mode_cache[scan8[0] - 1] == -1)
835 ✗ s->left_samples_available = 0x5F5F;
836 }
837
2/2
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 48013 if (s->mb_y > 0) {
838 45104 s->intra4x4_pred_mode_cache[4 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 0];
839 45104 s->intra4x4_pred_mode_cache[5 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 1];
840 45104 s->intra4x4_pred_mode_cache[6 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 2];
841 45104 s->intra4x4_pred_mode_cache[7 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 3];
842
843
1/2
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 45104 if (s->intra4x4_pred_mode_cache[4 + 8 * 0] == -1)
844 ✗ s->top_samples_available = 0x33FF;
845 }
846
847 /* decode prediction codes for luma blocks */
848
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 432117 for (i = 0; i < 16; i += 2) {
849 384104 vlc = get_interleaved_ue_golomb(&s->gb_slice);
850
851
1/2
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 384104 if (vlc >= 25U) {
852 ✗ av_log(s->avctx, AV_LOG_ERROR,
853 "luma prediction:%"PRIu32"\n", vlc);
854 ✗ return -1;
855 }
856
857 384104 left = &s->intra4x4_pred_mode_cache[scan8[i] - 1];
858 384104 top = &s->intra4x4_pred_mode_cache[scan8[i] - 8];
859
860 384104 left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]];
861 384104 left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]];
862
863
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 384104 if (left[1] == -1 || left[2] == -1) {
864 ✗ av_log(s->avctx, AV_LOG_ERROR, "weird prediction\n");
865 ✗ return -1;
866 }
867 }
868 } else { /* mb_type == 33, DC_128_PRED block type */
869 ✗ for (i = 0; i < 4; i++)
870 ✗ memset(&s->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_PRED, 4);
871 }
872
873 48013 AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4);
874 48013 i4x4[4] = i4x4_cache[7 + 8 * 3];
875 48013 i4x4[5] = i4x4_cache[7 + 8 * 2];
876 48013 i4x4[6] = i4x4_cache[7 + 8 * 1];
877
878
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 48013 if (mb_type == 8) {
879 48013 ff_h264_check_intra4x4_pred_mode(s->intra4x4_pred_mode_cache,
880 48013 s->avctx, s->top_samples_available,
881 48013 s->left_samples_available);
882
883
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✓ Branch 1 taken 45104 times.
 48013 s->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
884
2/2
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✓ Branch 1 taken 44014 times.
 48013 s->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
885 } else {
886 ✗ for (i = 0; i < 4; i++)
887 ✗ memset(&s->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_128_PRED, 4);
888
889 ✗ s->top_samples_available = 0x33FF;
890 ✗ s->left_samples_available = 0x5F5F;
891 }
892
893 48013 mb_type = MB_TYPE_INTRA4x4;
894 } else { /* INTRA16x16 */
895 2537 dir = ff_h264_i_mb_type_info[mb_type - 8].pred_mode;
896 2537 dir = (dir >> 1) ^ 3 * (dir & 1) ^ 1;
897
898
1/2
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 2537 if ((s->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(s->avctx, s->top_samples_available,
899 2537 s->left_samples_available, dir, 0)) < 0) {
900 ✗ av_log(s->avctx, AV_LOG_ERROR, "ff_h264_check_intra_pred_mode < 0\n");
901 ✗ return s->intra16x16_pred_mode;
902 }
903
904 2537 cbp = ff_h264_i_mb_type_info[mb_type - 8].cbp;
905 2537 mb_type = MB_TYPE_INTRA16x16;
906 }
907
908
4/4
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✓ Branch 2 taken 384749 times.
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 842100 if (!IS_INTER(mb_type) && s->pict_type != AV_PICTURE_TYPE_I) {
909
2/2
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✓ Branch 1 taken 384749 times.
 1923745 for (i = 0; i < 4; i++)
910 1538996 memset(s->cur_pic->motion_val[0][b_xy + i * s->b_stride],
911 0, 4 * 2 * sizeof(int16_t));
912
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✓ Branch 1 taken 384246 times.
 384749 if (s->pict_type == AV_PICTURE_TYPE_B) {
913
2/2
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✓ Branch 1 taken 503 times.
 2515 for (i = 0; i < 4; i++)
914 2012 memset(s->cur_pic->motion_val[1][b_xy + i * s->b_stride],
915 0, 4 * 2 * sizeof(int16_t));
916 }
917 }
918
2/2
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✓ Branch 1 taken 48013 times.
 842100 if (!IS_INTRA4x4(mb_type)) {
919 794087 memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy], DC_PRED, 8);
920 }
921
4/4
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✓ Branch 1 taken 488731 times.
✓ Branch 2 taken 481 times.
✓ Branch 3 taken 352888 times.
 842100 if (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B) {
922 489212 memset(s->non_zero_count_cache + 8, 0, 14 * 8 * sizeof(uint8_t));
923 }
924
925
2/2
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✓ Branch 1 taken 2537 times.
 842100 if (!IS_INTRA16x16(mb_type) &&
926
4/4
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✓ Branch 1 taken 486194 times.
✓ Branch 2 taken 481 times.
✓ Branch 3 taken 352888 times.
 839563 (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B)) {
927
1/2
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✓ Branch 2 taken 486675 times.
 486675 if ((vlc = get_interleaved_ue_golomb(&s->gb_slice)) >= 48U){
928 ✗ av_log(s->avctx, AV_LOG_ERROR, "cbp_vlc=%"PRIu32"\n", vlc);
929 ✗ return -1;
930 }
931
932 486675 cbp = IS_INTRA(mb_type) ? ff_h264_golomb_to_intra4x4_cbp[vlc]
933
2/2
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✓ Branch 1 taken 438662 times.
 486675 : ff_h264_golomb_to_inter_cbp[vlc];
934 }
935
2/2
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✓ Branch 1 taken 2537 times.
 842100 if (IS_INTRA16x16(mb_type) ||
936
6/6
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✓ Branch 4 taken 696 times.
✓ Branch 5 taken 1728 times.
 839563 (s->pict_type != AV_PICTURE_TYPE_I && s->adaptive_quant && cbp)) {
937 3233 s->qscale += get_interleaved_se_golomb(&s->gb_slice);
938
939
1/2
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✓ Branch 1 taken 3233 times.
 3233 if (s->qscale > 31u) {
940 ✗ av_log(s->avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale);
941 ✗ return -1;
942 }
943 }
944
2/2
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✓ Branch 1 taken 839563 times.
 842100 if (IS_INTRA16x16(mb_type)) {
945 2537 AV_ZERO128(s->mb_luma_dc[0] + 0);
946 2537 AV_ZERO128(s->mb_luma_dc[0] + 8);
947
1/2
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✓ Branch 2 taken 2537 times.
 2537 if (svq3_decode_block(&s->gb_slice, s->mb_luma_dc[0], 0, 1)) {
948 ✗ av_log(s->avctx, AV_LOG_ERROR,
949 "error while decoding intra luma dc\n");
950 ✗ return -1;
951 }
952 }
953
954
2/2
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✓ Branch 1 taken 508682 times.
 842100 if (cbp) {
955 333418 const int index = IS_INTRA16x16(mb_type) ? 1 : 0;
956
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✓ Branch 2 taken 40540 times.
✓ Branch 3 taken 292812 times.
 333418 const int type = ((s->qscale < 24 && IS_INTRA4x4(mb_type)) ? 2 : 1);
957
958
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 1667090 for (i = 0; i < 4; i++)
959
2/2
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✓ Branch 1 taken 579280 times.
 1333672 if ((cbp & (1 << i))) {
960
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 3771960 for (j = 0; j < 4; j++) {
961 3021440 k = index ? (1 * (j & 1) + 2 * (i & 1) +
962 3872 2 * (j & 2) + 4 * (i & 2))
963
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✓ Branch 1 taken 3013696 times.
 3017568 : (4 * i + j);
964 3017568 s->non_zero_count_cache[scan8[k]] = 1;
965
966
1/2
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 3017568 if (svq3_decode_block(&s->gb_slice, &s->mb[16 * k], index, type)) {
967 ✗ av_log(s->avctx, AV_LOG_ERROR,
968 "error while decoding block\n");
969 ✗ return -1;
970 }
971 }
972 }
973
974
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 333418 if ((cbp & 0x30)) {
975
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✓ Branch 1 taken 159176 times.
 477528 for (i = 1; i < 3; ++i)
976
1/2
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 318352 if (svq3_decode_block(&s->gb_slice, &s->mb[16 * 16 * i], 0, 3)) {
977 ✗ av_log(s->avctx, AV_LOG_ERROR,
978 "error while decoding chroma dc block\n");
979 ✗ return -1;
980 }
981
982
2/2
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 159176 if ((cbp & 0x20)) {
983
2/2
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 203310 for (i = 1; i < 3; i++) {
984
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 677700 for (j = 0; j < 4; j++) {
985 542160 k = 16 * i + j;
986 542160 s->non_zero_count_cache[scan8[k]] = 1;
987
988
1/2
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✓ Branch 2 taken 542160 times.
 542160 if (svq3_decode_block(&s->gb_slice, &s->mb[16 * k], 1, 1)) {
989 ✗ av_log(s->avctx, AV_LOG_ERROR,
990 "error while decoding chroma ac block\n");
991 ✗ return -1;
992 }
993 }
994 }
995 }
996 }
997 }
998
999 842100 s->cbp = cbp;
1000 842100 s->cur_pic->mb_type[mb_xy] = mb_type;
1001
1002
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 842100 if (IS_INTRA(mb_type))
1003 50550 s->chroma_pred_mode = ff_h264_check_intra_pred_mode(s->avctx, s->top_samples_available,
1004 50550 s->left_samples_available, DC_PRED8x8, 1);
1005
1006 842100 return 0;
1007 }
1008
1009 2808 static int svq3_decode_slice_header(AVCodecContext *avctx)
1010 {
1011 2808 SVQ3Context *s = avctx->priv_data;
1012 2808 const int mb_xy = s->mb_xy;
1013 int i, header;
1014 unsigned slice_id;
1015
1016 2808 header = get_bits(&s->gb, 8);
1017
1018
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 2808 if (((header & 0x9F) != 1 && (header & 0x9F) != 2) || (header & 0x60) == 0) {
1019 /* TODO: what? */
1020 ✗ av_log(avctx, AV_LOG_ERROR, "unsupported slice header (%02X)\n", header);
1021 ✗ return -1;
1022 } else {
1023 int slice_bits, slice_bytes, slice_length;
1024 2808 int length = header >> 5 & 3;
1025
1026 2808 slice_length = show_bits(&s->gb, 8 * length);
1027 2808 slice_bits = slice_length * 8;
1028 2808 slice_bytes = slice_length + length - 1;
1029
1030 2808 skip_bits(&s->gb, 8);
1031
1032 2808 av_fast_padded_malloc(&s->slice_buf, &s->slice_buf_size, slice_bytes);
1033
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 2808 if (!s->slice_buf)
1034 ✗ return AVERROR(ENOMEM);
1035
1036
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 2808 if (slice_bytes * 8LL > get_bits_left(&s->gb)) {
1037 ✗ av_log(avctx, AV_LOG_ERROR, "slice after bitstream end\n");
1038 ✗ return AVERROR_INVALIDDATA;
1039 }
1040 2808 memcpy(s->slice_buf, s->gb.buffer + s->gb.index / 8, slice_bytes);
1041
1042
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 2808 if (s->watermark_key) {
1043 10 uint32_t header = AV_RL32(&s->slice_buf[1]);
1044 10 AV_WL32(&s->slice_buf[1], header ^ s->watermark_key);
1045 }
1046 2808 init_get_bits(&s->gb_slice, s->slice_buf, slice_bits);
1047
1048
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 2808 if (length > 0) {
1049 2808 memmove(s->slice_buf, &s->slice_buf[slice_length], length - 1);
1050 }
1051 2808 skip_bits_long(&s->gb, slice_bytes * 8);
1052 }
1053
1054
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 2808 if ((slice_id = get_interleaved_ue_golomb(&s->gb_slice)) >= 3) {
1055 ✗ av_log(s->avctx, AV_LOG_ERROR, "illegal slice type %u \n", slice_id);
1056 ✗ return -1;
1057 }
1058
1059 2808 s->slice_type = ff_h264_golomb_to_pict_type[slice_id];
1060
1061
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 2808 if ((header & 0x9F) == 2) {
1062 ✗ i = (s->mb_num < 64) ? 6 : (1 + av_log2(s->mb_num - 1));
1063 ✗ get_bits(&s->gb_slice, i);
1064
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 2808 } else if (get_bits1(&s->gb_slice)) {
1065 ✗ avpriv_report_missing_feature(s->avctx, "Media key encryption");
1066 ✗ return AVERROR_PATCHWELCOME;
1067 }
1068
1069 2808 s->slice_num = get_bits(&s->gb_slice, 8);
1070 2808 s->qscale = get_bits(&s->gb_slice, 5);
1071 2808 s->adaptive_quant = get_bits1(&s->gb_slice);
1072
1073 /* unknown fields */
1074 2808 skip_bits1(&s->gb_slice);
1075
1076
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✓ Branch 1 taken 2798 times.
 2808 if (s->has_watermark)
1077 10 skip_bits1(&s->gb_slice);
1078
1079 2808 skip_bits1(&s->gb_slice);
1080 2808 skip_bits(&s->gb_slice, 2);
1081
1082
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✓ Branch 2 taken 2808 times.
 2808 if (skip_1stop_8data_bits(&s->gb_slice) < 0)
1083 ✗ return AVERROR_INVALIDDATA;
1084
1085 /* reset intra predictors and invalidate motion vector references */
1086
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 2808 if (s->mb_x > 0) {
1087 ✗ memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - 1] + 3,
1088 -1, 4 * sizeof(int8_t));
1089 ✗ memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - s->mb_x],
1090 ✗ -1, 8 * sizeof(int8_t) * s->mb_x);
1091 }
1092
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 2808 if (s->mb_y > 0) {
1093 ✗ memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - s->mb_stride],
1094 ✗ -1, 8 * sizeof(int8_t) * (s->mb_width - s->mb_x));
1095
1096 ✗ if (s->mb_x > 0)
1097 ✗ s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] = -1;
1098 }
1099
1100 2808 return 0;
1101 }
1102
1103 8 static void init_dequant4_coeff_table(SVQ3Context *s)
1104 {
1105 int q, x;
1106 8 const int max_qp = 51;
1107
1108
2/2
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✓ Branch 1 taken 8 times.
 424 for (q = 0; q < max_qp + 1; q++) {
1109 416 int shift = ff_h264_quant_div6[q] + 2;
1110 416 int idx = ff_h264_quant_rem6[q];
1111
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 7072 for (x = 0; x < 16; x++)
1112 6656 s->dequant4_coeff[q][(x >> 2) | ((x << 2) & 0xF)] =
1113 6656 ((uint32_t)ff_h264_dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] * 16) << shift;
1114 }
1115 8 }
1116
1117 8 static av_cold int svq3_decode_init(AVCodecContext *avctx)
1118 {
1119 8 SVQ3Context *s = avctx->priv_data;
1120 int m, x, y;
1121 unsigned char *extradata;
1122 unsigned char *extradata_end;
1123 unsigned int size;
1124 8 int marker_found = 0;
1125 int ret;
1126
1127 8 s->cur_pic = &s->frames[0];
1128 8 s->last_pic = &s->frames[1];
1129 8 s->next_pic = &s->frames[2];
1130
1131 8 s->cur_pic->f = av_frame_alloc();
1132 8 s->last_pic->f = av_frame_alloc();
1133 8 s->next_pic->f = av_frame_alloc();
1134
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 8 if (!s->cur_pic->f || !s->last_pic->f || !s->next_pic->f)
1135 ✗ return AVERROR(ENOMEM);
1136
1137 8 ff_h264dsp_init(&s->h264dsp, 8, 1);
1138 8 ff_h264_pred_init(&s->hpc, AV_CODEC_ID_SVQ3, 8, 1);
1139 8 ff_videodsp_init(&s->vdsp, 8);
1140
1141
1142 8 avctx->bits_per_raw_sample = 8;
1143
1144 8 ff_hpeldsp_init(&s->hdsp, avctx->flags);
1145 8 ff_tpeldsp_init(&s->tdsp);
1146
1147 8 avctx->pix_fmt = AV_PIX_FMT_YUVJ420P;
1148 8 avctx->color_range = AVCOL_RANGE_JPEG;
1149
1150 8 s->avctx = avctx;
1151 8 s->halfpel_flag = 1;
1152 8 s->thirdpel_flag = 1;
1153 8 s->has_watermark = 0;
1154
1155 /* prowl for the "SEQH" marker in the extradata */
1156 8 extradata = (unsigned char *)avctx->extradata;
1157 8 extradata_end = avctx->extradata + avctx->extradata_size;
1158
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 8 if (extradata) {
1159
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 72 for (m = 0; m + 8 < avctx->extradata_size; m++) {
1160
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 72 if (!memcmp(extradata, "SEQH", 4)) {
1161 8 marker_found = 1;
1162 8 break;
1163 }
1164 64 extradata++;
1165 }
1166 }
1167
1168 /* if a match was found, parse the extra data */
1169
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 8 if (marker_found) {
1170 GetBitContext gb;
1171 int frame_size_code;
1172 int unk0, unk1, unk2, unk3, unk4;
1173 int w,h;
1174
1175 8 size = AV_RB32(&extradata[4]);
1176
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 8 if (size > extradata_end - extradata - 8)
1177 ✗ return AVERROR_INVALIDDATA;
1178 8 init_get_bits(&gb, extradata + 8, size * 8);
1179
1180 /* 'frame size code' and optional 'width, height' */
1181 8 frame_size_code = get_bits(&gb, 3);
1182
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 8 switch (frame_size_code) {
1183 ✗ case 0:
1184 ✗ w = 160;
1185 ✗ h = 120;
1186 ✗ break;
1187 ✗ case 1:
1188 ✗ w = 128;
1189 ✗ h = 96;
1190 ✗ break;
1191 ✗ case 2:
1192 ✗ w = 176;
1193 ✗ h = 144;
1194 ✗ break;
1195 ✗ case 3:
1196 ✗ w = 352;
1197 ✗ h = 288;
1198 ✗ break;
1199 ✗ case 4:
1200 ✗ w = 704;
1201 ✗ h = 576;
1202 ✗ break;
1203 ✗ case 5:
1204 ✗ w = 240;
1205 ✗ h = 180;
1206 ✗ break;
1207 6 case 6:
1208 6 w = 320;
1209 6 h = 240;
1210 6 break;
1211 2 case 7:
1212 2 w = get_bits(&gb, 12);
1213 2 h = get_bits(&gb, 12);
1214 2 break;
1215 }
1216 8 ret = ff_set_dimensions(avctx, w, h);
1217
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 8 if (ret < 0)
1218 ✗ return ret;
1219
1220 8 s->halfpel_flag = get_bits1(&gb);
1221 8 s->thirdpel_flag = get_bits1(&gb);
1222
1223 /* unknown fields */
1224 8 unk0 = get_bits1(&gb);
1225 8 unk1 = get_bits1(&gb);
1226 8 unk2 = get_bits1(&gb);
1227 8 unk3 = get_bits1(&gb);
1228
1229 8 s->low_delay = get_bits1(&gb);
1230
1231 /* unknown field */
1232 8 unk4 = get_bits1(&gb);
1233
1234 8 av_log(avctx, AV_LOG_DEBUG, "Unknown fields %d %d %d %d %d\n",
1235 unk0, unk1, unk2, unk3, unk4);
1236
1237
1/2
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 8 if (skip_1stop_8data_bits(&gb) < 0)
1238 ✗ return AVERROR_INVALIDDATA;
1239
1240 8 s->has_watermark = get_bits1(&gb);
1241 8 avctx->has_b_frames = !s->low_delay;
1242
2/2
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 8 if (s->has_watermark) {
1243 #if CONFIG_ZLIB
1244 2 unsigned watermark_width = get_interleaved_ue_golomb(&gb);
1245 2 unsigned watermark_height = get_interleaved_ue_golomb(&gb);
1246 2 int u1 = get_interleaved_ue_golomb(&gb);
1247 2 int u2 = get_bits(&gb, 8);
1248 2 int u3 = get_bits(&gb, 2);
1249 2 int u4 = get_interleaved_ue_golomb(&gb);
1250 2 unsigned long buf_len = watermark_width *
1251 2 watermark_height * 4;
1252 2 int offset = get_bits_count(&gb) + 7 >> 3;
1253 uint8_t *buf;
1254
1255
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 2 if (watermark_height <= 0 ||
1256
1/2
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 2 (uint64_t)watermark_width * 4 > UINT_MAX / watermark_height)
1257 ✗ return AVERROR_INVALIDDATA;
1258
1259 2 buf = av_malloc(buf_len);
1260
1/2
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 2 if (!buf)
1261 ✗ return AVERROR(ENOMEM);
1262
1263 2 av_log(avctx, AV_LOG_DEBUG, "watermark size: %ux%u\n",
1264 watermark_width, watermark_height);
1265 2 av_log(avctx, AV_LOG_DEBUG,
1266 "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n",
1267 u1, u2, u3, u4, offset);
1268
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 2 if (uncompress(buf, &buf_len, extradata + 8 + offset,
1269 2 size - offset) != Z_OK) {
1270 ✗ av_log(avctx, AV_LOG_ERROR,
1271 "could not uncompress watermark logo\n");
1272 ✗ av_free(buf);
1273 ✗ return -1;
1274 }
1275 2 s->watermark_key = av_bswap16(av_crc(av_crc_get_table(AV_CRC_16_CCITT), 0, buf, buf_len));
1276
1277 2 s->watermark_key = s->watermark_key << 16 | s->watermark_key;
1278 2 av_log(avctx, AV_LOG_DEBUG,
1279 "watermark key %#"PRIx32"\n", s->watermark_key);
1280 2 av_free(buf);
1281 #else
1282 av_log(avctx, AV_LOG_ERROR,
1283 "this svq3 file contains watermark which need zlib support compiled in\n");
1284 return AVERROR(ENOSYS);
1285 #endif
1286 }
1287 }
1288
1289 8 s->mb_width = (avctx->width + 15) / 16;
1290 8 s->mb_height = (avctx->height + 15) / 16;
1291 8 s->mb_stride = s->mb_width + 1;
1292 8 s->mb_num = s->mb_width * s->mb_height;
1293 8 s->b_stride = 4 * s->mb_width;
1294 8 s->h_edge_pos = s->mb_width * 16;
1295 8 s->v_edge_pos = s->mb_height * 16;
1296
1297 8 s->intra4x4_pred_mode = av_mallocz(s->mb_stride * 2 * 8);
1298
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 8 if (!s->intra4x4_pred_mode)
1299 ✗ return AVERROR(ENOMEM);
1300
1301 8 s->mb2br_xy = av_mallocz(s->mb_stride * (s->mb_height + 1) *
1302 sizeof(*s->mb2br_xy));
1303
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 8 if (!s->mb2br_xy)
1304 ✗ return AVERROR(ENOMEM);
1305
1306
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 128 for (y = 0; y < s->mb_height; y++)
1307
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 2460 for (x = 0; x < s->mb_width; x++) {
1308 2340 const int mb_xy = x + y * s->mb_stride;
1309
1310 2340 s->mb2br_xy[mb_xy] = 8 * (mb_xy % (2 * s->mb_stride));
1311 }
1312
1313 8 init_dequant4_coeff_table(s);
1314
1315 8 return 0;
1316 }
1317
1318 24 static void free_picture(SVQ3Frame *pic)
1319 {
1320 int i;
1321
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✓ Branch 0 taken 48 times.
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 72 for (i = 0; i < 2; i++) {
1322 48 av_freep(&pic->motion_val_buf[i]);
1323 }
1324 24 av_freep(&pic->mb_type_buf);
1325
1326 24 av_frame_unref(pic->f);
1327 24 }
1328
1329 2808 static int get_buffer(AVCodecContext *avctx, SVQ3Frame *pic)
1330 {
1331 2808 SVQ3Context *s = avctx->priv_data;
1332 2808 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
1333 2808 const int b4_stride = s->mb_width * 4 + 1;
1334 2808 const int b4_array_size = b4_stride * s->mb_height * 4;
1335 int ret;
1336
1337
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 2808 if (!pic->motion_val_buf[0]) {
1338 int i;
1339
1340 12 pic->mb_type_buf = av_calloc(big_mb_num + s->mb_stride, sizeof(uint32_t));
1341
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 12 if (!pic->mb_type_buf)
1342 ✗ return AVERROR(ENOMEM);
1343 12 pic->mb_type = pic->mb_type_buf + 2 * s->mb_stride + 1;
1344
1345
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 36 for (i = 0; i < 2; i++) {
1346 24 pic->motion_val_buf[i] = av_calloc(b4_array_size + 4, 2 * sizeof(int16_t));
1347
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 24 if (!pic->motion_val_buf[i]) {
1348 ✗ ret = AVERROR(ENOMEM);
1349 ✗ goto fail;
1350 }
1351
1352 24 pic->motion_val[i] = pic->motion_val_buf[i] + 4;
1353 }
1354 }
1355
1356 2808 ret = ff_get_buffer(avctx, pic->f,
1357 2808 (s->pict_type != AV_PICTURE_TYPE_B) ?
1358 AV_GET_BUFFER_FLAG_REF : 0);
1359
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 2808 if (ret < 0)
1360 ✗ goto fail;
1361
1362
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 2808 if (!s->edge_emu_buffer) {
1363 4 s->edge_emu_buffer = av_calloc(pic->f->linesize[0], 17);
1364
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 4 if (!s->edge_emu_buffer)
1365 ✗ return AVERROR(ENOMEM);
1366 }
1367
1368 2808 return 0;
1369 ✗ fail:
1370 ✗ free_picture(pic);
1371 ✗ return ret;
1372 }
1373
1374 2815 static int svq3_decode_frame(AVCodecContext *avctx, AVFrame *rframe,
1375 int *got_frame, AVPacket *avpkt)
1376 {
1377 2815 SVQ3Context *s = avctx->priv_data;
1378 2815 int buf_size = avpkt->size;
1379 int left;
1380 int ret, m, i;
1381
1382 /* special case for last picture */
1383
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 2815 if (buf_size == 0) {
1384
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 7 if (s->next_pic->f->data[0] && !s->low_delay && !s->last_frame_output) {
1385 4 ret = av_frame_ref(rframe, s->next_pic->f);
1386
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 4 if (ret < 0)
1387 ✗ return ret;
1388 4 s->last_frame_output = 1;
1389 4 *got_frame = 1;
1390 }
1391 7 return 0;
1392 }
1393
1394 2808 s->mb_x = s->mb_y = s->mb_xy = 0;
1395
1396 2808 ret = init_get_bits8(&s->gb, avpkt->data, avpkt->size);
1397
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 2808 if (ret < 0)
1398 ✗ return ret;
1399
1400
1/2
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 2808 if (svq3_decode_slice_header(avctx))
1401 ✗ return -1;
1402
1403 2808 s->pict_type = s->slice_type;
1404
1405
2/2
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 2808 if (s->pict_type != AV_PICTURE_TYPE_B)
1406 2804 FFSWAP(SVQ3Frame*, s->next_pic, s->last_pic);
1407
1408 2808 av_frame_unref(s->cur_pic->f);
1409
1410 /* for skipping the frame */
1411 2808 s->cur_pic->f->pict_type = s->pict_type;
1412 2808 s->cur_pic->f->key_frame = (s->pict_type == AV_PICTURE_TYPE_I);
1413
1414 2808 ret = get_buffer(avctx, s->cur_pic);
1415
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 2808 if (ret < 0)
1416 ✗ return ret;
1417
1418
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 47736 for (i = 0; i < 16; i++) {
1419 44928 s->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * s->cur_pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
1420 44928 s->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * s->cur_pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
1421 }
1422
2/2
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 47736 for (i = 0; i < 16; i++) {
1423 44928 s->block_offset[16 + i] =
1424 44928 s->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * s->cur_pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
1425 44928 s->block_offset[48 + 16 + i] =
1426 44928 s->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * s->cur_pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
1427 }
1428
1429
2/2
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 2808 if (s->pict_type != AV_PICTURE_TYPE_I) {
1430
1/2
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 2744 if (!s->last_pic->f->data[0]) {
1431 ✗ av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n");
1432 ✗ av_frame_unref(s->last_pic->f);
1433 ✗ ret = get_buffer(avctx, s->last_pic);
1434 ✗ if (ret < 0)
1435 ✗ return ret;
1436 ✗ memset(s->last_pic->f->data[0], 0, avctx->height * s->last_pic->f->linesize[0]);
1437 ✗ memset(s->last_pic->f->data[1], 0x80, (avctx->height / 2) *
1438 ✗ s->last_pic->f->linesize[1]);
1439 ✗ memset(s->last_pic->f->data[2], 0x80, (avctx->height / 2) *
1440 ✗ s->last_pic->f->linesize[2]);
1441 }
1442
1443
3/4
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✗ Branch 2 not taken.
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 2744 if (s->pict_type == AV_PICTURE_TYPE_B && !s->next_pic->f->data[0]) {
1444 ✗ av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n");
1445 ✗ av_frame_unref(s->next_pic->f);
1446 ✗ ret = get_buffer(avctx, s->next_pic);
1447 ✗ if (ret < 0)
1448 ✗ return ret;
1449 ✗ memset(s->next_pic->f->data[0], 0, avctx->height * s->next_pic->f->linesize[0]);
1450 ✗ memset(s->next_pic->f->data[1], 0x80, (avctx->height / 2) *
1451 ✗ s->next_pic->f->linesize[1]);
1452 ✗ memset(s->next_pic->f->data[2], 0x80, (avctx->height / 2) *
1453 ✗ s->next_pic->f->linesize[2]);
1454 }
1455 }
1456
1457
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 2808 if (avctx->debug & FF_DEBUG_PICT_INFO)
1458 ✗ av_log(s->avctx, AV_LOG_DEBUG,
1459 "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n",
1460 ✗ av_get_picture_type_char(s->pict_type),
1461 s->halfpel_flag, s->thirdpel_flag,
1462 s->adaptive_quant, s->qscale, s->slice_num);
1463
1464
1/4
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 2808 if (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B ||
1465
1/4
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 2808 avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I ||
1466
1/2
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 2808 avctx->skip_frame >= AVDISCARD_ALL)
1467 ✗ return 0;
1468
1469
2/2
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✓ Branch 1 taken 2804 times.
 2808 if (s->pict_type == AV_PICTURE_TYPE_B) {
1470 4 s->frame_num_offset = s->slice_num - s->prev_frame_num;
1471
1472
1/2
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 4 if (s->frame_num_offset < 0)
1473 ✗ s->frame_num_offset += 256;
1474
1/2
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✗ Branch 1 not taken.
 4 if (s->frame_num_offset == 0 ||
1475
1/2
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 4 s->frame_num_offset >= s->prev_frame_num_offset) {
1476 ✗ av_log(s->avctx, AV_LOG_ERROR, "error in B-frame picture id\n");
1477 ✗ return -1;
1478 }
1479 } else {
1480 2804 s->prev_frame_num = s->frame_num;
1481 2804 s->frame_num = s->slice_num;
1482 2804 s->prev_frame_num_offset = s->frame_num - s->prev_frame_num;
1483
1484
2/2
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 2804 if (s->prev_frame_num_offset < 0)
1485 10 s->prev_frame_num_offset += 256;
1486 }
1487
1488
2/2
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 8424 for (m = 0; m < 2; m++) {
1489 int i;
1490
2/2
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 28080 for (i = 0; i < 4; i++) {
1491 int j;
1492
2/2
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 134784 for (j = -1; j < 4; j++)
1493 112320 s->ref_cache[m][scan8[0] + 8 * i + j] = 1;
1494
2/2
✓ Branch 0 taken 16848 times.
✓ Branch 1 taken 5616 times.
 22464 if (i < 3)
1495 16848 s->ref_cache[m][scan8[0] + 8 * i + j] = PART_NOT_AVAILABLE;
1496 }
1497 }
1498
1499
2/2
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✓ Branch 1 taken 2808 times.
 44928 for (s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
1500
2/2
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✓ Branch 1 taken 42120 times.
 884220 for (s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
1501 unsigned mb_type;
1502 842100 s->mb_xy = s->mb_x + s->mb_y * s->mb_stride;
1503
1504
2/2
✓ Branch 1 taken 3847 times.
✓ Branch 2 taken 838253 times.
 842100 if ((get_bits_left(&s->gb_slice)) <= 7) {
1505
2/4
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 3847 times.
 7694 if (((get_bits_count(&s->gb_slice) & 7) == 0 ||
1506 3847 show_bits(&s->gb_slice, get_bits_left(&s->gb_slice) & 7) == 0)) {
1507
1508 ✗ if (svq3_decode_slice_header(avctx))
1509 ✗ return -1;
1510 }
1511
1/2
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✓ Branch 1 taken 3847 times.
 3847 if (s->slice_type != s->pict_type) {
1512 ✗ avpriv_request_sample(avctx, "non constant slice type");
1513 }
1514 /* TODO: support s->mb_skip_run */
1515 }
1516
1517 842100 mb_type = get_interleaved_ue_golomb(&s->gb_slice);
1518
1519
2/2
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✓ Branch 1 taken 822930 times.
 842100 if (s->pict_type == AV_PICTURE_TYPE_I)
1520 19170 mb_type += 8;
1521
4/4
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✓ Branch 1 taken 821850 times.
✓ Branch 2 taken 22 times.
✓ Branch 3 taken 1058 times.
 822930 else if (s->pict_type == AV_PICTURE_TYPE_B && mb_type >= 4)
1522 22 mb_type += 4;
1523
2/4
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✗ Branch 1 not taken.
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✓ Branch 4 taken 842100 times.
 842100 if (mb_type > 33 || svq3_decode_mb(s, mb_type)) {
1524 ✗ av_log(s->avctx, AV_LOG_ERROR,
1525 "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
1526 ✗ return -1;
1527 }
1528
1529
4/4
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✓ Branch 1 taken 488338 times.
✓ Branch 2 taken 60 times.
✓ Branch 3 taken 353702 times.
 842100 if (mb_type != 0 || s->cbp)
1530 488398 hl_decode_mb(s);
1531
1532
3/4
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✓ Branch 1 taken 1080 times.
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✗ Branch 3 not taken.
 842100 if (s->pict_type != AV_PICTURE_TYPE_B && !s->low_delay)
1533 841020 s->cur_pic->mb_type[s->mb_x + s->mb_y * s->mb_stride] =
1534
4/4
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✓ Branch 1 taken 19170 times.
✓ Branch 2 taken 790492 times.
✓ Branch 3 taken 31358 times.
 841020 (s->pict_type == AV_PICTURE_TYPE_P && mb_type < 8) ? (mb_type - 1) : -1;
1535 }
1536
1537 42120 ff_draw_horiz_band(avctx, s->cur_pic->f,
1538 42060 s->last_pic->f->data[0] ? s->last_pic->f : NULL,
1539
2/2
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✓ Branch 1 taken 60 times.
 42120 16 * s->mb_y, 16, PICT_FRAME, 0,
1540 s->low_delay);
1541 }
1542
1543 2808 left = buf_size*8 - get_bits_count(&s->gb_slice);
1544
1545
2/4
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✗ Branch 1 not taken.
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✓ Branch 3 taken 2808 times.
 2808 if (s->mb_y != s->mb_height || s->mb_x != s->mb_width) {
1546 ✗ av_log(avctx, AV_LOG_INFO, "frame num %d incomplete pic x %d y %d left %d\n", avctx->frame_number, s->mb_y, s->mb_x, left);
1547 //av_hex_dump(stderr, buf+buf_size-8, 8);
1548 }
1549
1550
1/2
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✓ Branch 1 taken 2808 times.
 2808 if (left < 0) {
1551 ✗ av_log(avctx, AV_LOG_ERROR, "frame num %d left %d\n", avctx->frame_number, left);
1552 ✗ return -1;
1553 }
1554
1555
3/4
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✓ Branch 3 taken 2804 times.
 2808 if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay)
1556 4 ret = av_frame_ref(rframe, s->cur_pic->f);
1557
2/2
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✓ Branch 1 taken 4 times.
 2804 else if (s->last_pic->f->data[0])
1558 2800 ret = av_frame_ref(rframe, s->last_pic->f);
1559
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 2808 if (ret < 0)
1560 ✗ return ret;
1561
1562 /* Do not output the last pic after seeking. */
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 2808 if (s->last_pic->f->data[0] || s->low_delay)
1564 2804 *got_frame = 1;
1565
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 2808 if (s->pict_type != AV_PICTURE_TYPE_B) {
1567 2804 FFSWAP(SVQ3Frame*, s->cur_pic, s->next_pic);
1568 } else {
1569 4 av_frame_unref(s->cur_pic->f);
1570 }
1571
1572 2808 return buf_size;
1573 }
1574
1575 8 static av_cold int svq3_decode_end(AVCodecContext *avctx)
1576 {
1577 8 SVQ3Context *s = avctx->priv_data;
1578
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 32 for (int i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) {
1580 24 free_picture(&s->frames[i]);
1581 24 av_frame_free(&s->frames[i].f);
1582 }
1583 8 av_freep(&s->slice_buf);
1584 8 av_freep(&s->intra4x4_pred_mode);
1585 8 av_freep(&s->edge_emu_buffer);
1586 8 av_freep(&s->mb2br_xy);
1587
1588 8 return 0;
1589 }
1590
1591 const FFCodec ff_svq3_decoder = {
1592 .p.name = "svq3",
1593 .p.long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3"),
1594 .p.type = AVMEDIA_TYPE_VIDEO,
1595 .p.id = AV_CODEC_ID_SVQ3,
1596 .priv_data_size = sizeof(SVQ3Context),
1597 .init = svq3_decode_init,
1598 .close = svq3_decode_end,
1599 FF_CODEC_DECODE_CB(svq3_decode_frame),
1600 .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND |
1601 AV_CODEC_CAP_DR1 |
1602 AV_CODEC_CAP_DELAY,
1603 .p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUVJ420P,
1604 AV_PIX_FMT_NONE},
1605 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
1606 };
1607