FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/mpegvideo_motion.c
Date: 2025-07-12 22:17:06
Exec Total Coverage
Lines: 369 408 90.4%
Functions: 13 13 100.0%
Branches: 152 196 77.6%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2000,2001 Fabrice Bellard
3 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "config_components.h"
25
26 #include "libavutil/avassert.h"
27 #include "libavutil/internal.h"
28 #include "libavutil/mem_internal.h"
29
30 #include "avcodec.h"
31 #include "h261.h"
32 #include "h263.h"
33 #include "mpegutils.h"
34 #include "mpegvideo.h"
35 #include "mpeg4videodec.h"
36 #include "qpeldsp.h"
37 #include "wmv2.h"
38
39 2662184 static inline int hpel_motion(MpegEncContext *s,
40 uint8_t *dest, uint8_t *src,
41 int src_x, int src_y,
42 const op_pixels_func *pix_op,
43 int motion_x, int motion_y)
44 {
45 2662184 int dxy = 0;
46 2662184 int emu = 0;
47
48 2662184 src_x += motion_x >> 1;
49 2662184 src_y += motion_y >> 1;
50
51 /* WARNING: do no forget half pels */
52 2662184 src_x = av_clip(src_x, -16, s->width); // FIXME unneeded for emu?
53
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 2662184 if (src_x != s->width)
54 2660207 dxy |= motion_x & 1;
55 2662184 src_y = av_clip(src_y, -16, s->height);
56
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 2662184 if (src_y != s->height)
57 2659794 dxy |= (motion_y & 1) << 1;
58 2662184 src += src_y * s->linesize + src_x;
59
60
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 2662184 if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 7, 0) ||
61
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 2619242 (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 1) - 7, 0)) {
62 89859 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
63 s->linesize, s->linesize,
64 9, 9,
65 src_x, src_y,
66 s->h_edge_pos, s->v_edge_pos);
67 89859 src = s->sc.edge_emu_buffer;
68 89859 emu = 1;
69 }
70 2662184 pix_op[dxy](dest, src, s->linesize, 8);
71 2662184 return emu;
72 }
73
74 static av_always_inline
75 9025443 void mpeg_motion_internal(MpegEncContext *s,
76 uint8_t *dest_y,
77 uint8_t *dest_cb,
78 uint8_t *dest_cr,
79 int field_based,
80 int bottom_field,
81 int field_select,
82 uint8_t *const *ref_picture,
83 const op_pixels_func (*pix_op)[4],
84 int motion_x,
85 int motion_y,
86 int h,
87 int is_mpeg12,
88 int is_16x8,
89 int mb_y)
90 {
91 const uint8_t *ptr_y, *ptr_cb, *ptr_cr;
92 int dxy, uvdxy, mx, my, src_x, src_y,
93 uvsrc_x, uvsrc_y, v_edge_pos, block_y_half;
94 ptrdiff_t uvlinesize, linesize;
95
96 9025443 v_edge_pos = s->v_edge_pos >> field_based;
97 9025443 linesize = s->cur_pic.linesize[0] << field_based;
98 9025443 uvlinesize = s->cur_pic.linesize[1] << field_based;
99 9025443 block_y_half = (field_based | is_16x8);
100
101 9025443 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
102 9025443 src_x = s->mb_x * 16 + (motion_x >> 1);
103 9025443 src_y = (mb_y << (4 - block_y_half)) + (motion_y >> 1);
104
105
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 9025443 if (!is_mpeg12 && s->out_format == FMT_H263) {
106
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 3795370 if ((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based) {
107 ✗ mx = (motion_x >> 1) | (motion_x & 1);
108 ✗ my = motion_y >> 1;
109 ✗ uvdxy = ((my & 1) << 1) | (mx & 1);
110 ✗ uvsrc_x = s->mb_x * 8 + (mx >> 1);
111 ✗ uvsrc_y = (mb_y << (3 - block_y_half)) + (my >> 1);
112 } else {
113 3795370 uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
114 3795370 uvsrc_x = src_x >> 1;
115 3795370 uvsrc_y = src_y >> 1;
116 }
117 // Even chroma mv's are full pel in H261
118
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 5230073 } else if (!CONFIG_SMALL && !is_mpeg12 ||
119 CONFIG_SMALL && s->out_format == FMT_H261) {
120 av_assert2(s->out_format == FMT_H261);
121 207248 mx = motion_x / 4;
122 207248 my = motion_y / 4;
123 207248 uvdxy = 0;
124 207248 uvsrc_x = s->mb_x * 8 + mx;
125 207248 uvsrc_y = mb_y * 8 + my;
126 } else {
127 av_assert2(s->out_format == FMT_MPEG1);
128
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 5022825 if (s->chroma_y_shift) {
129 4348931 mx = motion_x / 2;
130 4348931 my = motion_y / 2;
131 4348931 uvdxy = ((my & 1) << 1) | (mx & 1);
132 4348931 uvsrc_x = s->mb_x * 8 + (mx >> 1);
133 4348931 uvsrc_y = (mb_y << (3 - block_y_half)) + (my >> 1);
134 } else {
135
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 673894 if (s->chroma_x_shift) {
136 // Chroma422
137 673894 mx = motion_x / 2;
138 673894 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
139 673894 uvsrc_x = s->mb_x * 8 + (mx >> 1);
140 673894 uvsrc_y = src_y;
141 } else {
142 // Chroma444
143 ✗ uvdxy = dxy;
144 ✗ uvsrc_x = src_x;
145 ✗ uvsrc_y = src_y;
146 }
147 }
148 }
149
150 9025443 ptr_y = ref_picture[0] + src_y * linesize + src_x;
151 9025443 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
152 9025443 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
153
154
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 9025443 if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 15 , 0) ||
155
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 8889983 (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 1) - h + 1, 0)) {
156
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 283450 if (is_mpeg12 || (CONFIG_SMALL &&
157 (s->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
158 s->codec_id == AV_CODEC_ID_MPEG1VIDEO))) {
159 ✗ av_log(s->avctx, AV_LOG_DEBUG,
160 "MPEG motion vector out of boundary (%d %d)\n", src_x,
161 src_y);
162 ✗ return;
163 }
164 283450 src_y = (unsigned)src_y << field_based;
165 283450 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
166 s->linesize, s->linesize,
167 17, 17 + field_based,
168 src_x, src_y,
169 s->h_edge_pos, s->v_edge_pos);
170 283450 ptr_y = s->sc.edge_emu_buffer;
171 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
172 283450 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
173 283450 uint8_t *vbuf = ubuf + 10 * s->uvlinesize;
174
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 283450 if (s->workaround_bugs & FF_BUG_IEDGE)
175 ✗ vbuf -= s->uvlinesize;
176 283450 uvsrc_y = (unsigned)uvsrc_y << field_based;
177 283450 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
178 s->uvlinesize, s->uvlinesize,
179 9, 9 + field_based,
180 uvsrc_x, uvsrc_y,
181 283450 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
182 283450 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
183 s->uvlinesize, s->uvlinesize,
184 9, 9 + field_based,
185 uvsrc_x, uvsrc_y,
186 283450 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
187 283450 ptr_cb = ubuf;
188 283450 ptr_cr = vbuf;
189 }
190 }
191
192 /* FIXME use this for field pix too instead of the obnoxious hack which
193 * changes picture.data */
194
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 9025443 if (bottom_field) {
195 230465 dest_y += s->linesize;
196 230465 dest_cb += s->uvlinesize;
197 230465 dest_cr += s->uvlinesize;
198 }
199
200
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 9025443 if (field_select) {
201 735830 ptr_y += s->linesize;
202 735830 ptr_cb += s->uvlinesize;
203 735830 ptr_cr += s->uvlinesize;
204 }
205
206 9025443 pix_op[0][dxy](dest_y, ptr_y, linesize, h);
207
208 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
209 9025443 pix_op[s->chroma_x_shift][uvdxy]
210 9025443 (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
211 9025443 pix_op[s->chroma_x_shift][uvdxy]
212 9025443 (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
213 }
214
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 9025443 if (!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
215
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 4002618 s->out_format == FMT_H261) {
216 207248 ff_h261_loop_filter(s);
217 }
218 }
219 /* apply one mpeg motion vector to the three components */
220 8564513 static void mpeg_motion(MpegEncContext *s,
221 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
222 int field_select, uint8_t *const *ref_picture,
223 const op_pixels_func (*pix_op)[4],
224 int motion_x, int motion_y, int h, int is_16x8, int mb_y)
225 {
226 #if !CONFIG_SMALL
227
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 8564513 if (s->out_format == FMT_MPEG1)
228 4561895 mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
229 field_select, ref_picture, pix_op,
230 motion_x, motion_y, h, 1, is_16x8, mb_y);
231 else
232 #endif
233 4002618 mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
234 field_select, ref_picture, pix_op,
235 motion_x, motion_y, h, 0, is_16x8, mb_y);
236 8564513 }
237
238 460930 static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y,
239 uint8_t *dest_cb, uint8_t *dest_cr,
240 int bottom_field, int field_select,
241 uint8_t *const *ref_picture,
242 const op_pixels_func (*pix_op)[4],
243 int motion_x, int motion_y, int mb_y)
244 {
245 #if !CONFIG_SMALL
246
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 460930 if (s->out_format == FMT_MPEG1)
247 460930 mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
248 bottom_field, field_select, ref_picture, pix_op,
249 motion_x, motion_y, 8, 1, 0, mb_y);
250 else
251 #endif
252 ✗ mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
253 bottom_field, field_select, ref_picture, pix_op,
254 motion_x, motion_y, 8, 0, 0, mb_y);
255 460930 }
256
257 // FIXME: SIMDify, avg variant, 16x16 version
258 412968 static inline void put_obmc(uint8_t *dst, uint8_t *const src[5], int stride)
259 {
260 int x;
261 412968 uint8_t *const top = src[1];
262 412968 uint8_t *const left = src[2];
263 412968 uint8_t *const mid = src[0];
264 412968 uint8_t *const right = src[3];
265 412968 uint8_t *const bottom = src[4];
266 #define OBMC_FILTER(x, t, l, m, r, b)\
267 dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
268 #define OBMC_FILTER4(x, t, l, m, r, b)\
269 OBMC_FILTER(x , t, l, m, r, b);\
270 OBMC_FILTER(x+1 , t, l, m, r, b);\
271 OBMC_FILTER(x +stride, t, l, m, r, b);\
272 OBMC_FILTER(x+1+stride, t, l, m, r, b);
273
274 412968 x = 0;
275 412968 OBMC_FILTER (x , 2, 2, 4, 0, 0);
276 412968 OBMC_FILTER (x + 1, 2, 1, 5, 0, 0);
277 412968 OBMC_FILTER4(x + 2, 2, 1, 5, 0, 0);
278 412968 OBMC_FILTER4(x + 4, 2, 0, 5, 1, 0);
279 412968 OBMC_FILTER (x + 6, 2, 0, 5, 1, 0);
280 412968 OBMC_FILTER (x + 7, 2, 0, 4, 2, 0);
281 412968 x += stride;
282 412968 OBMC_FILTER (x , 1, 2, 5, 0, 0);
283 412968 OBMC_FILTER (x + 1, 1, 2, 5, 0, 0);
284 412968 OBMC_FILTER (x + 6, 1, 0, 5, 2, 0);
285 412968 OBMC_FILTER (x + 7, 1, 0, 5, 2, 0);
286 412968 x += stride;
287 412968 OBMC_FILTER4(x , 1, 2, 5, 0, 0);
288 412968 OBMC_FILTER4(x + 2, 1, 1, 6, 0, 0);
289 412968 OBMC_FILTER4(x + 4, 1, 0, 6, 1, 0);
290 412968 OBMC_FILTER4(x + 6, 1, 0, 5, 2, 0);
291 412968 x += 2 * stride;
292 412968 OBMC_FILTER4(x , 0, 2, 5, 0, 1);
293 412968 OBMC_FILTER4(x + 2, 0, 1, 6, 0, 1);
294 412968 OBMC_FILTER4(x + 4, 0, 0, 6, 1, 1);
295 412968 OBMC_FILTER4(x + 6, 0, 0, 5, 2, 1);
296 412968 x += 2*stride;
297 412968 OBMC_FILTER (x , 0, 2, 5, 0, 1);
298 412968 OBMC_FILTER (x + 1, 0, 2, 5, 0, 1);
299 412968 OBMC_FILTER4(x + 2, 0, 1, 5, 0, 2);
300 412968 OBMC_FILTER4(x + 4, 0, 0, 5, 1, 2);
301 412968 OBMC_FILTER (x + 6, 0, 0, 5, 2, 1);
302 412968 OBMC_FILTER (x + 7, 0, 0, 5, 2, 1);
303 412968 x += stride;
304 412968 OBMC_FILTER (x , 0, 2, 4, 0, 2);
305 412968 OBMC_FILTER (x + 1, 0, 1, 5, 0, 2);
306 412968 OBMC_FILTER (x + 6, 0, 0, 5, 1, 2);
307 412968 OBMC_FILTER (x + 7, 0, 0, 4, 2, 2);
308 412968 }
309
310 /* obmc for 1 8x8 luma block */
311 412968 static inline void obmc_motion(MpegEncContext *s,
312 uint8_t *dest, uint8_t *src,
313 int src_x, int src_y,
314 const op_pixels_func *pix_op,
315 int16_t mv[5][2] /* mid top left right bottom */)
316 #define MID 0
317 {
318 int i;
319 uint8_t *ptr[5];
320
321 av_assert2(s->quarter_sample == 0);
322
323
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324
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 2064840 if (i && mv[i][0] == mv[MID][0] && mv[i][1] == mv[MID][1]) {
325 1242100 ptr[i] = ptr[MID];
326 } else {
327 822740 ptr[i] = s->sc.obmc_scratchpad + 8 * (i & 1) +
328 822740 s->linesize * 8 * (i >> 1);
329 822740 hpel_motion(s, ptr[i], src, src_x, src_y, pix_op,
330 822740 mv[i][0], mv[i][1]);
331 }
332 }
333
334 412968 put_obmc(dest, ptr, s->linesize);
335 412968 }
336
337 212765 static inline void qpel_motion(MpegEncContext *s,
338 uint8_t *dest_y,
339 uint8_t *dest_cb,
340 uint8_t *dest_cr,
341 int field_based, int bottom_field,
342 int field_select, uint8_t *const *ref_picture,
343 const op_pixels_func (*pix_op)[4],
344 const qpel_mc_func (*qpix_op)[16],
345 int motion_x, int motion_y, int h)
346 {
347 const uint8_t *ptr_y, *ptr_cb, *ptr_cr;
348 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos;
349 ptrdiff_t linesize, uvlinesize;
350
351 212765 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
352
353 212765 src_x = s->mb_x * 16 + (motion_x >> 2);
354 212765 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
355
356 212765 v_edge_pos = s->v_edge_pos >> field_based;
357 212765 linesize = s->linesize << field_based;
358 212765 uvlinesize = s->uvlinesize << field_based;
359
360
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 212765 if (field_based) {
361 ✗ mx = motion_x / 2;
362 ✗ my = motion_y >> 1;
363
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 212765 } else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA2) {
364 static const int rtab[8] = { 0, 0, 1, 1, 0, 0, 0, 1 };
365 ✗ mx = (motion_x >> 1) + rtab[motion_x & 7];
366 ✗ my = (motion_y >> 1) + rtab[motion_y & 7];
367
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 212765 } else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA) {
368 ✗ mx = (motion_x >> 1) | (motion_x & 1);
369 ✗ my = (motion_y >> 1) | (motion_y & 1);
370 } else {
371 212765 mx = motion_x / 2;
372 212765 my = motion_y / 2;
373 }
374 212765 mx = (mx >> 1) | (mx & 1);
375 212765 my = (my >> 1) | (my & 1);
376
377 212765 uvdxy = (mx & 1) | ((my & 1) << 1);
378 212765 mx >>= 1;
379 212765 my >>= 1;
380
381 212765 uvsrc_x = s->mb_x * 8 + mx;
382 212765 uvsrc_y = s->mb_y * (8 >> field_based) + my;
383
384 212765 ptr_y = ref_picture[0] + src_y * linesize + src_x;
385 212765 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
386 212765 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
387
388
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 212765 if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 3) - 15 , 0) ||
389
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 203216 (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 3) - h + 1, 0)) {
390 20705 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
391 s->linesize, s->linesize,
392 17, 17 + field_based,
393 src_x, src_y * (1 << field_based),
394 s->h_edge_pos, s->v_edge_pos);
395 20705 ptr_y = s->sc.edge_emu_buffer;
396 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
397 20705 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
398 20705 uint8_t *vbuf = ubuf + 10 * s->uvlinesize;
399
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 20705 if (s->workaround_bugs & FF_BUG_IEDGE)
400 ✗ vbuf -= s->uvlinesize;
401 20705 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
402 s->uvlinesize, s->uvlinesize,
403 9, 9 + field_based,
404 uvsrc_x, uvsrc_y * (1 << field_based),
405 20705 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
406 20705 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
407 s->uvlinesize, s->uvlinesize,
408 9, 9 + field_based,
409 uvsrc_x, uvsrc_y * (1 << field_based),
410 20705 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
411 20705 ptr_cb = ubuf;
412 20705 ptr_cr = vbuf;
413 }
414 }
415
416
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 212765 if (!field_based)
417 212765 qpix_op[0][dxy](dest_y, ptr_y, linesize);
418 else {
419 ✗ if (bottom_field) {
420 ✗ dest_y += s->linesize;
421 ✗ dest_cb += s->uvlinesize;
422 ✗ dest_cr += s->uvlinesize;
423 }
424
425 ✗ if (field_select) {
426 ✗ ptr_y += s->linesize;
427 ✗ ptr_cb += s->uvlinesize;
428 ✗ ptr_cr += s->uvlinesize;
429 }
430 // damn interlaced mode
431 // FIXME boundary mirroring is not exactly correct here
432 ✗ qpix_op[1][dxy](dest_y, ptr_y, linesize);
433 ✗ qpix_op[1][dxy](dest_y + 8, ptr_y + 8, linesize);
434 }
435 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
436 212765 pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
437 212765 pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
438 }
439 212765 }
440
441 /**
442 * H.263 chroma 4mv motion compensation.
443 */
444 689634 static void chroma_4mv_motion(MpegEncContext *s,
445 uint8_t *dest_cb, uint8_t *dest_cr,
446 uint8_t *const *ref_picture,
447 const op_pixels_func *pix_op,
448 int mx, int my)
449 {
450 const uint8_t *ptr;
451 689634 int src_x, src_y, dxy, emu = 0;
452 ptrdiff_t offset;
453
454 /* In case of 8X8, we construct a single chroma motion vector
455 * with a special rounding */
456 689634 mx = ff_h263_round_chroma(mx);
457 689634 my = ff_h263_round_chroma(my);
458
459 689634 dxy = ((my & 1) << 1) | (mx & 1);
460 689634 mx >>= 1;
461 689634 my >>= 1;
462
463 689634 src_x = s->mb_x * 8 + mx;
464 689634 src_y = s->mb_y * 8 + my;
465 689634 src_x = av_clip(src_x, -8, (s->width >> 1));
466
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 689634 if (src_x == (s->width >> 1))
467 3 dxy &= ~1;
468 689634 src_y = av_clip(src_y, -8, (s->height >> 1));
469
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 689634 if (src_y == (s->height >> 1))
470 10 dxy &= ~2;
471
472 689634 offset = src_y * s->uvlinesize + src_x;
473 689634 ptr = ref_picture[1] + offset;
474
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 689634 if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 7, 0) ||
475
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 662471 (unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 7, 0)) {
476 56167 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
477 s->uvlinesize, s->uvlinesize,
478 9, 9, src_x, src_y,
479 56167 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
480 56167 ptr = s->sc.edge_emu_buffer;
481 56167 emu = 1;
482 }
483 689634 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
484
485 689634 ptr = ref_picture[2] + offset;
486
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 689634 if (emu) {
487 56167 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
488 s->uvlinesize, s->uvlinesize,
489 9, 9, src_x, src_y,
490 56167 s->h_edge_pos >> 1, s->v_edge_pos >> 1);
491 56167 ptr = s->sc.edge_emu_buffer;
492 }
493 689634 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
494 689634 }
495
496 9460697 static inline void prefetch_motion(MpegEncContext *s, uint8_t *const *pix, int dir)
497 {
498 /* fetch pixels for estimated mv 4 macroblocks ahead
499 * optimized for 64byte cache lines */
500
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 9460697 const int shift = s->quarter_sample ? 2 : 1;
501 9460697 const int mx = (s->mv[dir][0][0] >> shift) + 16 * s->mb_x + 8;
502 9460697 const int my = (s->mv[dir][0][1] >> shift) + 16 * s->mb_y;
503 9460697 int off = mx + (my + (s->mb_x & 3) * 4) * s->linesize + 64;
504
505 9460697 s->vdsp.prefetch(pix[0] + off, s->linesize, 4);
506 9460697 off = (mx >> 1) + ((my >> 1) + (s->mb_x & 7)) * s->uvlinesize + 64;
507 9460697 s->vdsp.prefetch(pix[1] + off, pix[2] - pix[1], 2);
508 9460697 }
509
510 103242 static inline void apply_obmc(MpegEncContext *s,
511 uint8_t *dest_y,
512 uint8_t *dest_cb,
513 uint8_t *dest_cr,
514 uint8_t *const *ref_picture,
515 const op_pixels_func (*pix_op)[4])
516 {
517 103242 LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
518 103242 const MPVWorkPicture *cur_frame = &s->cur_pic;
519 103242 int mb_x = s->mb_x;
520 103242 int mb_y = s->mb_y;
521 103242 const int xy = mb_x + mb_y * s->mb_stride;
522 103242 const int mot_stride = s->b8_stride;
523 103242 const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
524 int mx, my, i;
525
526 av_assert2(!s->mb_skipped);
527
528 103242 AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy]);
529 103242 AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
530
531 103242 AV_COPY32(mv_cache[2][1],
532 cur_frame->motion_val[0][mot_xy + mot_stride]);
533 103242 AV_COPY32(mv_cache[2][2],
534 cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
535
536 103242 AV_COPY32(mv_cache[3][1],
537 cur_frame->motion_val[0][mot_xy + mot_stride]);
538 103242 AV_COPY32(mv_cache[3][2],
539 cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
540
541
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 103242 if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
542 7740 AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
543 7740 AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
544 } else {
545 95502 AV_COPY32(mv_cache[0][1],
546 cur_frame->motion_val[0][mot_xy - mot_stride]);
547 95502 AV_COPY32(mv_cache[0][2],
548 cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
549 }
550
551
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 103242 if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
552 6486 AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
553 6486 AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
554 } else {
555 96756 AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
556 96756 AV_COPY32(mv_cache[2][0],
557 cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
558 }
559
560
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 103242 if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
561 6529 AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
562 6529 AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
563 } else {
564 96713 AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
565 96713 AV_COPY32(mv_cache[2][3],
566 cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
567 }
568
569 103242 mx = 0;
570 103242 my = 0;
571
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 516210 for (i = 0; i < 4; i++) {
572 412968 const int x = (i & 1) + 1;
573 412968 const int y = (i >> 1) + 1;
574 412968 int16_t mv[5][2] = {
575 412968 { mv_cache[y][x][0], mv_cache[y][x][1] },
576 412968 { mv_cache[y - 1][x][0], mv_cache[y - 1][x][1] },
577 412968 { mv_cache[y][x - 1][0], mv_cache[y][x - 1][1] },
578 412968 { mv_cache[y][x + 1][0], mv_cache[y][x + 1][1] },
579 412968 { mv_cache[y + 1][x][0], mv_cache[y + 1][x][1] }
580 };
581 // FIXME cleanup
582 412968 obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
583 ref_picture[0],
584 412968 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >> 1) * 8,
585 412968 pix_op[1],
586 mv);
587
588 412968 mx += mv[0][0];
589 412968 my += mv[0][1];
590 }
591 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
592 103242 chroma_4mv_motion(s, dest_cb, dest_cr,
593 103242 ref_picture, pix_op[1],
594 mx, my);
595 103242 }
596
597 586392 static inline void apply_8x8(MpegEncContext *s,
598 uint8_t *dest_y,
599 uint8_t *dest_cb,
600 uint8_t *dest_cr,
601 int dir,
602 uint8_t *const *ref_picture,
603 const qpel_mc_func (*qpix_op)[16],
604 const op_pixels_func (*pix_op)[4])
605 {
606 int dxy, mx, my, src_x, src_y;
607 int i;
608 586392 int mb_x = s->mb_x;
609 586392 int mb_y = s->mb_y;
610 uint8_t *dest;
611 const uint8_t *ptr;
612
613 586392 mx = 0;
614 586392 my = 0;
615
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 586392 if (s->quarter_sample) {
616
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 632655 for (i = 0; i < 4; i++) {
617 506124 int motion_x = s->mv[dir][i][0];
618 506124 int motion_y = s->mv[dir][i][1];
619
620 506124 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
621 506124 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
622 506124 src_y = mb_y * 16 + (motion_y >> 2) + (i >> 1) * 8;
623
624 /* WARNING: do no forget half pels */
625 506124 src_x = av_clip(src_x, -16, s->width);
626
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 506124 if (src_x == s->width)
627 698 dxy &= ~3;
628 506124 src_y = av_clip(src_y, -16, s->height);
629
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 506124 if (src_y == s->height)
630 838 dxy &= ~12;
631
632 506124 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
633
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 506124 if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 3) - 7, 0) ||
634
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 494465 (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 3) - 7, 0)) {
635 24373 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
636 s->linesize, s->linesize,
637 9, 9,
638 src_x, src_y,
639 s->h_edge_pos,
640 s->v_edge_pos);
641 24373 ptr = s->sc.edge_emu_buffer;
642 }
643 506124 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
644 506124 qpix_op[1][dxy](dest, ptr, s->linesize);
645
646 506124 mx += s->mv[dir][i][0] / 2;
647 506124 my += s->mv[dir][i][1] / 2;
648 }
649 } else {
650
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 2299305 for (i = 0; i < 4; i++) {
651 1839444 hpel_motion(s,
652 1839444 dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
653 ref_picture[0],
654 1839444 mb_x * 16 + (i & 1) * 8,
655 1839444 mb_y * 16 + (i >> 1) * 8,
656 1839444 pix_op[1],
657 s->mv[dir][i][0],
658 s->mv[dir][i][1]);
659
660 1839444 mx += s->mv[dir][i][0];
661 1839444 my += s->mv[dir][i][1];
662 }
663 }
664
665 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
666 586392 chroma_4mv_motion(s, dest_cb, dest_cr,
667 586392 ref_picture, pix_op[1], mx, my);
668 586392 }
669
670 /**
671 * motion compensation of a single macroblock
672 * @param s context
673 * @param dest_y luma destination pointer
674 * @param dest_cb chroma cb/u destination pointer
675 * @param dest_cr chroma cr/v destination pointer
676 * @param dir direction (0->forward, 1->backward)
677 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
678 * @param pix_op halfpel motion compensation function (average or put normally)
679 * @param qpix_op qpel motion compensation function (average or put normally)
680 * the motion vectors are taken from s->mv and the MV type from s->mv_type
681 */
682 9460697 static av_always_inline void mpv_motion_internal(MpegEncContext *s,
683 uint8_t *dest_y,
684 uint8_t *dest_cb,
685 uint8_t *dest_cr,
686 int dir,
687 uint8_t *const *ref_picture,
688 const op_pixels_func (*pix_op)[4],
689 const qpel_mc_func (*qpix_op)[16],
690 int is_mpeg12)
691 {
692 int i;
693 9460697 int mb_y = s->mb_y;
694
695
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 9460697 if (!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B) {
696 103242 apply_obmc(s, dest_y, dest_cb, dest_cr, ref_picture, pix_op);
697 103242 return;
698 }
699
700
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 9357455 switch (s->mv_type) {
701 7866982 case MV_TYPE_16X16:
702
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 7866982 if (CONFIG_MPEG4_DECODER && !is_mpeg12 && s->mcsel) {
703 ✗ ff_mpeg4_mcsel_motion(s, dest_y, dest_cb, dest_cr, ref_picture);
704
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 7866982 } else if (!is_mpeg12 && s->quarter_sample) {
705 212765 qpel_motion(s, dest_y, dest_cb, dest_cr,
706 0, 0, 0,
707 ref_picture, pix_op, qpix_op,
708 s->mv[dir][0][0], s->mv[dir][0][1], 16);
709
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 7654217 } else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
710
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 4083111 s->mspel && s->codec_id == AV_CODEC_ID_WMV2) {
711 80493 ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
712 ref_picture, pix_op,
713 s->mv[dir][0][0], s->mv[dir][0][1], 16);
714 } else {
715 7573724 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
716 ref_picture, pix_op,
717 s->mv[dir][0][0], s->mv[dir][0][1], 16, 0, mb_y);
718 }
719 7866982 break;
720 586392 case MV_TYPE_8X8:
721
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 586392 if (!is_mpeg12)
722 586392 apply_8x8(s, dest_y, dest_cb, dest_cr,
723 dir, ref_picture, qpix_op, pix_op);
724 586392 break;
725 586908 case MV_TYPE_FIELD:
726 // Only MPEG-1/2 can have a picture_structure != PICT_FRAME here.
727 if (!CONFIG_SMALL)
728 av_assert2(is_mpeg12 || s->picture_structure == PICT_FRAME);
729
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 586908 if ((!CONFIG_SMALL && !is_mpeg12) ||
730
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 586908 s->picture_structure == PICT_FRAME) {
731
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 230465 if (!is_mpeg12 && s->quarter_sample) {
732 ✗ for (i = 0; i < 2; i++)
733 ✗ qpel_motion(s, dest_y, dest_cb, dest_cr,
734 1, i, s->field_select[dir][i],
735 ref_picture, pix_op, qpix_op,
736 s->mv[dir][i][0], s->mv[dir][i][1], 8);
737 } else {
738 /* top field */
739 230465 mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
740 0, s->field_select[dir][0],
741 ref_picture, pix_op,
742 s->mv[dir][0][0], s->mv[dir][0][1], mb_y);
743 /* bottom field */
744 230465 mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
745 1, s->field_select[dir][1],
746 ref_picture, pix_op,
747 s->mv[dir][1][0], s->mv[dir][1][1], mb_y);
748 }
749 } else {
750 av_assert2(s->out_format == FMT_MPEG1);
751
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 356443 if (s->picture_structure != s->field_select[dir][0] + 1 &&
752
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 51390 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
753 32539 ref_picture = s->cur_pic.ptr->f->data;
754 }
755
756 356443 mpeg_motion(s, dest_y, dest_cb, dest_cr,
757 s->field_select[dir][0],
758 ref_picture, pix_op,
759 s->mv[dir][0][0], s->mv[dir][0][1], 16, 0, mb_y >> 1);
760 }
761 586908 break;
762 295287 case MV_TYPE_16X8:
763
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 295287 if (CONFIG_SMALL || is_mpeg12) {
764
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 885861 for (i = 0; i < 2; i++) {
765 uint8_t *const *ref2picture;
766
767
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 590574 if (s->picture_structure == s->field_select[dir][i] + 1 ||
768
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 79480 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
769 522796 ref2picture = ref_picture;
770 } else {
771 67778 ref2picture = s->cur_pic.ptr->f->data;
772 }
773
774 590574 mpeg_motion(s, dest_y, dest_cb, dest_cr,
775 s->field_select[dir][i],
776 ref2picture, pix_op,
777 s->mv[dir][i][0], s->mv[dir][i][1],
778 590574 8, 1, (mb_y & ~1) + i);
779
780 590574 dest_y += 16 * s->linesize;
781 590574 dest_cb += (16 >> s->chroma_y_shift) * s->uvlinesize;
782 590574 dest_cr += (16 >> s->chroma_y_shift) * s->uvlinesize;
783 }
784 295287 break;
785 }
786 case MV_TYPE_DMV:
787
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788
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 21886 if (s->picture_structure == PICT_FRAME) {
789 ✗ for (i = 0; i < 2; i++) {
790 ✗ for (int j = 0; j < 2; j++)
791 ✗ mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
792 j, j ^ i, ref_picture, pix_op,
793 ✗ s->mv[dir][2 * i + j][0],
794 ✗ s->mv[dir][2 * i + j][1], mb_y);
795 ✗ pix_op = s->hdsp.avg_pixels_tab;
796 }
797 } else {
798
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 65658 for (i = 0; i < 2; i++) {
799 43772 mpeg_motion(s, dest_y, dest_cb, dest_cr,
800 43772 s->picture_structure != i + 1,
801 ref_picture, pix_op,
802 43772 s->mv[dir][2 * i][0], s->mv[dir][2 * i][1],
803 16, 0, mb_y >> 1);
804
805 // after put we make avg of the same block
806 43772 pix_op = s->hdsp.avg_pixels_tab;
807
808 /* opposite parity is always in the same frame if this is
809 * second field */
810
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 43772 if (!s->first_field)
811 37496 ref_picture = s->cur_pic.ptr->f->data;
812 }
813 }
814 21886 break;
815 }
816 default:
817 ✗ av_unreachable("No other mpegvideo MV types exist");
818 }
819 }
820
821 9460697 void ff_mpv_motion(MpegEncContext *s,
822 uint8_t *dest_y, uint8_t *dest_cb,
823 uint8_t *dest_cr, int dir,
824 uint8_t *const *ref_picture,
825 const op_pixels_func (*pix_op)[4],
826 const qpel_mc_func (*qpix_op)[16])
827 {
828 av_assert2(s->out_format == FMT_MPEG1 ||
829 s->out_format == FMT_H263 ||
830 s->out_format == FMT_H261);
831 9460697 prefetch_motion(s, ref_picture, dir);
832
833 #if !CONFIG_SMALL
834
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 9460697 if (s->out_format == FMT_MPEG1)
835 4475187 mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
836 ref_picture, pix_op, qpix_op, 1);
837 else
838 #endif
839 4985510 mpv_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
840 ref_picture, pix_op, qpix_op, 0);
841 9460697 }
842