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vf_minterpolate.c
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1 /**
2  * Copyright (c) 2014-2015 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (c) 2016 Davinder Singh (DSM_) <ds.mudhar<@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "motion_estimation.h"
23 #include "libavcodec/mathops.h"
24 #include "libavutil/avassert.h"
25 #include "libavutil/common.h"
26 #include "libavutil/motion_vector.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/pixelutils.h"
30 #include "avfilter.h"
31 #include "formats.h"
32 #include "internal.h"
33 #include "video.h"
34 
35 #define ME_MODE_BIDIR 0
36 #define ME_MODE_BILAT 1
37 
38 #define MC_MODE_OBMC 0
39 #define MC_MODE_AOBMC 1
40 
41 #define SCD_METHOD_NONE 0
42 #define SCD_METHOD_FDIFF 1
43 
44 #define NB_FRAMES 4
45 #define NB_PIXEL_MVS 32
46 #define NB_CLUSTERS 128
47 
48 #define ALPHA_MAX 1024
49 #define CLUSTER_THRESHOLD 4
50 #define PX_WEIGHT_MAX 255
51 #define COST_PRED_SCALE 64
52 
53 static const uint8_t obmc_linear32[1024] = {
54  0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0,
55  0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0,
56  0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0,
57  0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0,
58  4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4,
59  4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4,
60  4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4,
61  4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4,
62  4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4,
63  4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4,
64  4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4,
65  4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4,
66  8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8,
67  8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8,
68  8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8,
69  8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8,
70  8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8,
71  8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8,
72  8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8,
73  8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8,
74  4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4,
75  4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4,
76  4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4,
77  4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4,
78  4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4,
79  4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4,
80  4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4,
81  4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4,
82  0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0,
83  0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0,
84  0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0,
85  0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0,
86 };
87 
88 static const uint8_t obmc_linear16[256] = {
89  0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0,
90  4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4,
91  4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4,
92  8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8,
93  8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8,
94  12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12,
95  12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12,
96  16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16,
97  16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16,
98  12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12,
99  12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12,
100  8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8,
101  8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8,
102  4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4,
103  4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4,
104  0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0,
105 };
106 
107 static const uint8_t obmc_linear8[64] = {
108  4, 12, 20, 28, 28, 20, 12, 4,
109  12, 36, 60, 84, 84, 60, 36, 12,
110  20, 60,100,140,140,100, 60, 20,
111  28, 84,140,196,196,140, 84, 28,
112  28, 84,140,196,196,140, 84, 28,
113  20, 60,100,140,140,100, 60, 20,
114  12, 36, 60, 84, 84, 60, 36, 12,
115  4, 12, 20, 28, 28, 20, 12, 4,
116 };
117 
118 static const uint8_t obmc_linear4[16] = {
119  16, 48, 48, 16,
120  48,144,144, 48,
121  48,144,144, 48,
122  16, 48, 48, 16,
123 };
124 
125 static const uint8_t * const obmc_tab_linear[4]= {
126  obmc_linear32, obmc_linear16, obmc_linear8, obmc_linear4
127 };
128 
129 enum MIMode {
130  MI_MODE_DUP = 0,
131  MI_MODE_BLEND = 1,
132  MI_MODE_MCI = 2,
133 };
134 
135 typedef struct Cluster {
136  int64_t sum[2];
137  int nb;
138 } Cluster;
139 
140 typedef struct Block {
141  int16_t mvs[2][2];
142  int cid;
143  uint64_t sbad;
144  int sb;
145  struct Block *subs;
146 } Block;
147 
148 typedef struct Pixel {
149  int16_t mvs[NB_PIXEL_MVS][2];
150  uint32_t weights[NB_PIXEL_MVS];
151  int8_t refs[NB_PIXEL_MVS];
152  int nb;
153 } Pixel;
154 
155 typedef struct Frame {
156  AVFrame *avf;
157  Block *blocks;
158 } Frame;
159 
160 typedef struct MIContext {
161  const AVClass *class;
162  AVMotionEstContext me_ctx;
163  AVRational frame_rate;
164  enum MIMode mi_mode;
165  int mc_mode;
166  int me_mode;
167  int me_method;
168  int mb_size;
169  int search_param;
170  int vsbmc;
171 
172  Frame frames[NB_FRAMES];
173  Cluster clusters[NB_CLUSTERS];
174  Block *int_blocks;
175  Pixel *pixels;
176  int (*mv_table[3])[2][2];
177  int64_t out_pts;
178  int b_width, b_height, b_count;
179  int log2_mb_size;
180 
181  int scd_method;
182  int scene_changed;
183  av_pixelutils_sad_fn sad;
184  double prev_mafd;
185  double scd_threshold;
186 
187  int log2_chroma_w;
188  int log2_chroma_h;
189  int nb_planes;
190 } MIContext;
191 
192 #define OFFSET(x) offsetof(MIContext, x)
193 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
194 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
195 
196 static const AVOption minterpolate_options[] = {
197  { "fps", "output's frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "60"}, 0, INT_MAX, FLAGS },
198  { "mi_mode", "motion interpolation mode", OFFSET(mi_mode), AV_OPT_TYPE_INT, {.i64 = MI_MODE_MCI}, MI_MODE_DUP, MI_MODE_MCI, FLAGS, "mi_mode" },
199  CONST("dup", "duplicate frames", MI_MODE_DUP, "mi_mode"),
200  CONST("blend", "blend frames", MI_MODE_BLEND, "mi_mode"),
201  CONST("mci", "motion compensated interpolation", MI_MODE_MCI, "mi_mode"),
202  { "mc_mode", "motion compensation mode", OFFSET(mc_mode), AV_OPT_TYPE_INT, {.i64 = MC_MODE_OBMC}, MC_MODE_OBMC, MC_MODE_AOBMC, FLAGS, "mc_mode" },
203  CONST("obmc", "overlapped block motion compensation", MC_MODE_OBMC, "mc_mode"),
204  CONST("aobmc", "adaptive overlapped block motion compensation", MC_MODE_AOBMC, "mc_mode"),
205  { "me_mode", "motion estimation mode", OFFSET(me_mode), AV_OPT_TYPE_INT, {.i64 = ME_MODE_BILAT}, ME_MODE_BIDIR, ME_MODE_BILAT, FLAGS, "me_mode" },
206  CONST("bidir", "bidirectional motion estimation", ME_MODE_BIDIR, "me_mode"),
207  CONST("bilat", "bilateral motion estimation", ME_MODE_BILAT, "me_mode"),
208  { "me", "motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {.i64 = AV_ME_METHOD_EPZS}, AV_ME_METHOD_ESA, AV_ME_METHOD_UMH, FLAGS, "me" },
209  CONST("esa", "exhaustive search", AV_ME_METHOD_ESA, "me"),
210  CONST("tss", "three step search", AV_ME_METHOD_TSS, "me"),
211  CONST("tdls", "two dimensional logarithmic search", AV_ME_METHOD_TDLS, "me"),
212  CONST("ntss", "new three step search", AV_ME_METHOD_NTSS, "me"),
213  CONST("fss", "four step search", AV_ME_METHOD_FSS, "me"),
214  CONST("ds", "diamond search", AV_ME_METHOD_DS, "me"),
215  CONST("hexbs", "hexagon-based search", AV_ME_METHOD_HEXBS, "me"),
216  CONST("epzs", "enhanced predictive zonal search", AV_ME_METHOD_EPZS, "me"),
217  CONST("umh", "uneven multi-hexagon search", AV_ME_METHOD_UMH, "me"),
218  { "mb_size", "macroblock size", OFFSET(mb_size), AV_OPT_TYPE_INT, {.i64 = 16}, 4, 16, FLAGS },
219  { "search_param", "search parameter", OFFSET(search_param), AV_OPT_TYPE_INT, {.i64 = 32}, 4, INT_MAX, FLAGS },
220  { "vsbmc", "variable-size block motion compensation", OFFSET(vsbmc), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS },
221  { "scd", "scene change detection method", OFFSET(scd_method), AV_OPT_TYPE_INT, {.i64 = SCD_METHOD_FDIFF}, SCD_METHOD_NONE, SCD_METHOD_FDIFF, FLAGS, "scene" },
222  CONST("none", "disable detection", SCD_METHOD_NONE, "scene"),
223  CONST("fdiff", "frame difference", SCD_METHOD_FDIFF, "scene"),
224  { "scd_threshold", "scene change threshold", OFFSET(scd_threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 5.0}, 0, 100.0, FLAGS },
225  { NULL }
226 };
227 
228 AVFILTER_DEFINE_CLASS(minterpolate);
229 
230 static int query_formats(AVFilterContext *ctx)
231 {
232  static const enum AVPixelFormat pix_fmts[] = {
233  AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
234  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
235  AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
236  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
237  AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
238  AV_PIX_FMT_YUVJ411P,
239  AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
240  AV_PIX_FMT_GRAY8,
241  AV_PIX_FMT_NONE
242  };
243 
244  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
245  if (!fmts_list)
246  return AVERROR(ENOMEM);
247  return ff_set_common_formats(ctx, fmts_list);
248 }
249 
250 static uint64_t get_sbad(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
251 {
252  uint8_t *data_cur = me_ctx->data_cur;
253  uint8_t *data_next = me_ctx->data_ref;
254  int linesize = me_ctx->linesize;
255  int mv_x1 = x_mv - x;
256  int mv_y1 = y_mv - y;
257  int mv_x, mv_y, i, j;
258  uint64_t sbad = 0;
259 
260  x = av_clip(x, me_ctx->x_min, me_ctx->x_max);
261  y = av_clip(y, me_ctx->y_min, me_ctx->y_max);
262  mv_x = av_clip(x_mv - x, -FFMIN(x - me_ctx->x_min, me_ctx->x_max - x), FFMIN(x - me_ctx->x_min, me_ctx->x_max - x));
263  mv_y = av_clip(y_mv - y, -FFMIN(y - me_ctx->y_min, me_ctx->y_max - y), FFMIN(y - me_ctx->y_min, me_ctx->y_max - y));
264 
265  data_cur += (y + mv_y) * linesize;
266  data_next += (y - mv_y) * linesize;
267 
268  for (j = 0; j < me_ctx->mb_size; j++)
269  for (i = 0; i < me_ctx->mb_size; i++)
270  sbad += FFABS(data_cur[x + mv_x + i + j * linesize] - data_next[x - mv_x + i + j * linesize]);
271 
272  return sbad + (FFABS(mv_x1 - me_ctx->pred_x) + FFABS(mv_y1 - me_ctx->pred_y)) * COST_PRED_SCALE;
273 }
274 
275 static uint64_t get_sbad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
276 {
277  uint8_t *data_cur = me_ctx->data_cur;
278  uint8_t *data_next = me_ctx->data_ref;
279  int linesize = me_ctx->linesize;
280  int x_min = me_ctx->x_min + me_ctx->mb_size / 2;
281  int x_max = me_ctx->x_max - me_ctx->mb_size / 2;
282  int y_min = me_ctx->y_min + me_ctx->mb_size / 2;
283  int y_max = me_ctx->y_max - me_ctx->mb_size / 2;
284  int mv_x1 = x_mv - x;
285  int mv_y1 = y_mv - y;
286  int mv_x, mv_y, i, j;
287  uint64_t sbad = 0;
288 
289  x = av_clip(x, x_min, x_max);
290  y = av_clip(y, y_min, y_max);
291  mv_x = av_clip(x_mv - x, -FFMIN(x - x_min, x_max - x), FFMIN(x - x_min, x_max - x));
292  mv_y = av_clip(y_mv - y, -FFMIN(y - y_min, y_max - y), FFMIN(y - y_min, y_max - y));
293 
294  for (j = -me_ctx->mb_size / 2; j < me_ctx->mb_size * 3 / 2; j++)
295  for (i = -me_ctx->mb_size / 2; i < me_ctx->mb_size * 3 / 2; i++)
296  sbad += FFABS(data_cur[x + mv_x + i + (y + mv_y + j) * linesize] - data_next[x - mv_x + i + (y - mv_y + j) * linesize]);
297 
298  return sbad + (FFABS(mv_x1 - me_ctx->pred_x) + FFABS(mv_y1 - me_ctx->pred_y)) * COST_PRED_SCALE;
299 }
300 
301 static uint64_t get_sad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
302 {
303  uint8_t *data_ref = me_ctx->data_ref;
304  uint8_t *data_cur = me_ctx->data_cur;
305  int linesize = me_ctx->linesize;
306  int x_min = me_ctx->x_min + me_ctx->mb_size / 2;
307  int x_max = me_ctx->x_max - me_ctx->mb_size / 2;
308  int y_min = me_ctx->y_min + me_ctx->mb_size / 2;
309  int y_max = me_ctx->y_max - me_ctx->mb_size / 2;
310  int mv_x = x_mv - x;
311  int mv_y = y_mv - y;
312  int i, j;
313  uint64_t sad = 0;
314 
315  x = av_clip(x, x_min, x_max);
316  y = av_clip(y, y_min, y_max);
317  x_mv = av_clip(x_mv, x_min, x_max);
318  y_mv = av_clip(y_mv, y_min, y_max);
319 
320  for (j = -me_ctx->mb_size / 2; j < me_ctx->mb_size * 3 / 2; j++)
321  for (i = -me_ctx->mb_size / 2; i < me_ctx->mb_size * 3 / 2; i++)
322  sad += FFABS(data_ref[x_mv + i + (y_mv + j) * linesize] - data_cur[x + i + (y + j) * linesize]);
323 
324  return sad + (FFABS(mv_x - me_ctx->pred_x) + FFABS(mv_y - me_ctx->pred_y)) * COST_PRED_SCALE;
325 }
326 
327 static int config_input(AVFilterLink *inlink)
328 {
329  MIContext *mi_ctx = inlink->dst->priv;
330  AVMotionEstContext *me_ctx = &mi_ctx->me_ctx;
331  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
332  const int height = inlink->h;
333  const int width = inlink->w;
334  int i;
335 
336  mi_ctx->log2_chroma_h = desc->log2_chroma_h;
337  mi_ctx->log2_chroma_w = desc->log2_chroma_w;
338 
339  mi_ctx->nb_planes = av_pix_fmt_count_planes(inlink->format);
340 
341  mi_ctx->log2_mb_size = av_ceil_log2_c(mi_ctx->mb_size);
342  mi_ctx->mb_size = 1 << mi_ctx->log2_mb_size;
343 
344  mi_ctx->b_width = width >> mi_ctx->log2_mb_size;
345  mi_ctx->b_height = height >> mi_ctx->log2_mb_size;
346  mi_ctx->b_count = mi_ctx->b_width * mi_ctx->b_height;
347 
348  for (i = 0; i < NB_FRAMES; i++) {
349  Frame *frame = &mi_ctx->frames[i];
350  frame->blocks = av_mallocz_array(mi_ctx->b_count, sizeof(Block));
351  if (!frame->blocks)
352  return AVERROR(ENOMEM);
353  }
354 
355  if (mi_ctx->mi_mode == MI_MODE_MCI) {
356  if (!(mi_ctx->pixels = av_mallocz_array(width * height, sizeof(Pixel))))
357  return AVERROR(ENOMEM);
358 
359  if (mi_ctx->me_mode == ME_MODE_BILAT)
360  if (!(mi_ctx->int_blocks = av_mallocz_array(mi_ctx->b_count, sizeof(Block))))
361  return AVERROR(ENOMEM);
362 
363  if (mi_ctx->me_method == AV_ME_METHOD_EPZS) {
364  for (i = 0; i < 3; i++) {
365  mi_ctx->mv_table[i] = av_mallocz_array(mi_ctx->b_count, sizeof(*mi_ctx->mv_table[0]));
366  if (!mi_ctx->mv_table[i])
367  return AVERROR(ENOMEM);
368  }
369  }
370  }
371 
372  if (mi_ctx->scd_method == SCD_METHOD_FDIFF) {
373  mi_ctx->sad = av_pixelutils_get_sad_fn(3, 3, 2, mi_ctx);
374  if (!mi_ctx->sad)
375  return AVERROR(EINVAL);
376  }
377 
378  ff_me_init_context(me_ctx, mi_ctx->mb_size, mi_ctx->search_param, width, height, 0, (mi_ctx->b_width - 1) << mi_ctx->log2_mb_size, 0, (mi_ctx->b_height - 1) << mi_ctx->log2_mb_size);
379 
380  if (mi_ctx->me_mode == ME_MODE_BIDIR)
381  me_ctx->get_cost = &get_sad_ob;
382  else if (mi_ctx->me_mode == ME_MODE_BILAT)
383  me_ctx->get_cost = &get_sbad_ob;
384 
385  return 0;
386 }
387 
388 static int config_output(AVFilterLink *outlink)
389 {
390  MIContext *mi_ctx = outlink->src->priv;
391 
392  outlink->frame_rate = mi_ctx->frame_rate;
393  outlink->time_base = av_inv_q(mi_ctx->frame_rate);
394 
395  return 0;
396 }
397 
398 #define ADD_PRED(preds, px, py)\
399  do {\
400  preds.mvs[preds.nb][0] = px;\
401  preds.mvs[preds.nb][1] = py;\
402  preds.nb++;\
403  } while(0)
404 
405 static void search_mv(MIContext *mi_ctx, Block *blocks, int mb_x, int mb_y, int dir)
406 {
407  AVMotionEstContext *me_ctx = &mi_ctx->me_ctx;
408  AVMotionEstPredictor *preds = me_ctx->preds;
409  Block *block = &blocks[mb_x + mb_y * mi_ctx->b_width];
410 
411  const int x_mb = mb_x << mi_ctx->log2_mb_size;
412  const int y_mb = mb_y << mi_ctx->log2_mb_size;
413  const int mb_i = mb_x + mb_y * mi_ctx->b_width;
414  int mv[2] = {x_mb, y_mb};
415 
416  switch (mi_ctx->me_method) {
417  case AV_ME_METHOD_ESA:
418  ff_me_search_esa(me_ctx, x_mb, y_mb, mv);
419  break;
420  case AV_ME_METHOD_TSS:
421  ff_me_search_tss(me_ctx, x_mb, y_mb, mv);
422  break;
423  case AV_ME_METHOD_TDLS:
424  ff_me_search_tdls(me_ctx, x_mb, y_mb, mv);
425  break;
426  case AV_ME_METHOD_NTSS:
427  ff_me_search_ntss(me_ctx, x_mb, y_mb, mv);
428  break;
429  case AV_ME_METHOD_FSS:
430  ff_me_search_fss(me_ctx, x_mb, y_mb, mv);
431  break;
432  case AV_ME_METHOD_DS:
433  ff_me_search_ds(me_ctx, x_mb, y_mb, mv);
434  break;
435  case AV_ME_METHOD_HEXBS:
436  ff_me_search_hexbs(me_ctx, x_mb, y_mb, mv);
437  break;
438  case AV_ME_METHOD_EPZS:
439 
440  preds[0].nb = 0;
441  preds[1].nb = 0;
442 
443  ADD_PRED(preds[0], 0, 0);
444 
445  //left mb in current frame
446  if (mb_x > 0)
447  ADD_PRED(preds[0], mi_ctx->mv_table[0][mb_i - 1][dir][0], mi_ctx->mv_table[0][mb_i - 1][dir][1]);
448 
449  //top mb in current frame
450  if (mb_y > 0)
451  ADD_PRED(preds[0], mi_ctx->mv_table[0][mb_i - mi_ctx->b_width][dir][0], mi_ctx->mv_table[0][mb_i - mi_ctx->b_width][dir][1]);
452 
453  //top-right mb in current frame
454  if (mb_y > 0 && mb_x + 1 < mi_ctx->b_width)
455  ADD_PRED(preds[0], mi_ctx->mv_table[0][mb_i - mi_ctx->b_width + 1][dir][0], mi_ctx->mv_table[0][mb_i - mi_ctx->b_width + 1][dir][1]);
456 
457  //median predictor
458  if (preds[0].nb == 4) {
459  me_ctx->pred_x = mid_pred(preds[0].mvs[1][0], preds[0].mvs[2][0], preds[0].mvs[3][0]);
460  me_ctx->pred_y = mid_pred(preds[0].mvs[1][1], preds[0].mvs[2][1], preds[0].mvs[3][1]);
461  } else if (preds[0].nb == 3) {
462  me_ctx->pred_x = mid_pred(0, preds[0].mvs[1][0], preds[0].mvs[2][0]);
463  me_ctx->pred_y = mid_pred(0, preds[0].mvs[1][1], preds[0].mvs[2][1]);
464  } else if (preds[0].nb == 2) {
465  me_ctx->pred_x = preds[0].mvs[1][0];
466  me_ctx->pred_y = preds[0].mvs[1][1];
467  } else {
468  me_ctx->pred_x = 0;
469  me_ctx->pred_y = 0;
470  }
471 
472  //collocated mb in prev frame
473  ADD_PRED(preds[0], mi_ctx->mv_table[1][mb_i][dir][0], mi_ctx->mv_table[1][mb_i][dir][1]);
474 
475  //accelerator motion vector of collocated block in prev frame
476  ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i][dir][0] + (mi_ctx->mv_table[1][mb_i][dir][0] - mi_ctx->mv_table[2][mb_i][dir][0]),
477  mi_ctx->mv_table[1][mb_i][dir][1] + (mi_ctx->mv_table[1][mb_i][dir][1] - mi_ctx->mv_table[2][mb_i][dir][1]));
478 
479  //left mb in prev frame
480  if (mb_x > 0)
481  ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i - 1][dir][0], mi_ctx->mv_table[1][mb_i - 1][dir][1]);
482 
483  //top mb in prev frame
484  if (mb_y > 0)
485  ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i - mi_ctx->b_width][dir][0], mi_ctx->mv_table[1][mb_i - mi_ctx->b_width][dir][1]);
486 
487  //right mb in prev frame
488  if (mb_x + 1 < mi_ctx->b_width)
489  ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i + 1][dir][0], mi_ctx->mv_table[1][mb_i + 1][dir][1]);
490 
491  //bottom mb in prev frame
492  if (mb_y + 1 < mi_ctx->b_height)
493  ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i + mi_ctx->b_width][dir][0], mi_ctx->mv_table[1][mb_i + mi_ctx->b_width][dir][1]);
494 
495  ff_me_search_epzs(me_ctx, x_mb, y_mb, mv);
496 
497  mi_ctx->mv_table[0][mb_i][dir][0] = mv[0] - x_mb;
498  mi_ctx->mv_table[0][mb_i][dir][1] = mv[1] - y_mb;
499 
500  break;
501  case AV_ME_METHOD_UMH:
502 
503  preds[0].nb = 0;
504 
505  ADD_PRED(preds[0], 0, 0);
506 
507  //left mb in current frame
508  if (mb_x > 0)
509  ADD_PRED(preds[0], blocks[mb_i - 1].mvs[dir][0], blocks[mb_i - 1].mvs[dir][1]);
510 
511  if (mb_y > 0) {
512  //top mb in current frame
513  ADD_PRED(preds[0], blocks[mb_i - mi_ctx->b_width].mvs[dir][0], blocks[mb_i - mi_ctx->b_width].mvs[dir][1]);
514 
515  //top-right mb in current frame
516  if (mb_x + 1 < mi_ctx->b_width)
517  ADD_PRED(preds[0], blocks[mb_i - mi_ctx->b_width + 1].mvs[dir][0], blocks[mb_i - mi_ctx->b_width + 1].mvs[dir][1]);
518  //top-left mb in current frame
519  else if (mb_x > 0)
520  ADD_PRED(preds[0], blocks[mb_i - mi_ctx->b_width - 1].mvs[dir][0], blocks[mb_i - mi_ctx->b_width - 1].mvs[dir][1]);
521  }
522 
523  //median predictor
524  if (preds[0].nb == 4) {
525  me_ctx->pred_x = mid_pred(preds[0].mvs[1][0], preds[0].mvs[2][0], preds[0].mvs[3][0]);
526  me_ctx->pred_y = mid_pred(preds[0].mvs[1][1], preds[0].mvs[2][1], preds[0].mvs[3][1]);
527  } else if (preds[0].nb == 3) {
528  me_ctx->pred_x = mid_pred(0, preds[0].mvs[1][0], preds[0].mvs[2][0]);
529  me_ctx->pred_y = mid_pred(0, preds[0].mvs[1][1], preds[0].mvs[2][1]);
530  } else if (preds[0].nb == 2) {
531  me_ctx->pred_x = preds[0].mvs[1][0];
532  me_ctx->pred_y = preds[0].mvs[1][1];
533  } else {
534  me_ctx->pred_x = 0;
535  me_ctx->pred_y = 0;
536  }
537 
538  ff_me_search_umh(me_ctx, x_mb, y_mb, mv);
539 
540  break;
541  }
542 
543  block->mvs[dir][0] = mv[0] - x_mb;
544  block->mvs[dir][1] = mv[1] - y_mb;
545 }
546 
547 static void bilateral_me(MIContext *mi_ctx)
548 {
549  Block *block;
550  int mb_x, mb_y;
551 
552  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
553  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
554  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
555 
556  block->cid = 0;
557  block->sb = 0;
558 
559  block->mvs[0][0] = 0;
560  block->mvs[0][1] = 0;
561  }
562 
563  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
564  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++)
565  search_mv(mi_ctx, mi_ctx->int_blocks, mb_x, mb_y, 0);
566 }
567 
568 static int var_size_bme(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n)
569 {
570  AVMotionEstContext *me_ctx = &mi_ctx->me_ctx;
571  uint64_t cost_sb, cost_old;
572  int mb_size = me_ctx->mb_size;
573  int search_param = me_ctx->search_param;
574  int mv_x, mv_y;
575  int x, y;
576  int ret;
577 
578  me_ctx->mb_size = 1 << n;
579  cost_old = me_ctx->get_cost(me_ctx, x_mb, y_mb, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]);
580  me_ctx->mb_size = mb_size;
581 
582  if (!cost_old) {
583  block->sb = 0;
584  return 0;
585  }
586 
587  if (!block->subs) {
588  block->subs = av_mallocz_array(4, sizeof(Block));
589  if (!block->subs)
590  return AVERROR(ENOMEM);
591  }
592 
593  block->sb = 1;
594 
595  for (y = 0; y < 2; y++)
596  for (x = 0; x < 2; x++) {
597  Block *sb = &block->subs[x + y * 2];
598  int mv[2] = {x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]};
599 
600  me_ctx->mb_size = 1 << (n - 1);
601  me_ctx->search_param = 2;
602  me_ctx->pred_x = block->mvs[0][0];
603  me_ctx->pred_y = block->mvs[0][1];
604 
605  cost_sb = ff_me_search_ds(&mi_ctx->me_ctx, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1], mv);
606  mv_x = mv[0] - x_mb;
607  mv_y = mv[1] - y_mb;
608 
609  me_ctx->mb_size = mb_size;
610  me_ctx->search_param = search_param;
611 
612  if (cost_sb < cost_old / 4) {
613  sb->mvs[0][0] = mv_x;
614  sb->mvs[0][1] = mv_y;
615 
616  if (n > 1) {
617  if (ret = var_size_bme(mi_ctx, sb, x_mb + (x << (n - 1)), y_mb + (y << (n - 1)), n - 1))
618  return ret;
619  } else
620  sb->sb = 0;
621  } else {
622  block->sb = 0;
623  return 0;
624  }
625  }
626 
627  return 0;
628 }
629 
630 static int cluster_mvs(MIContext *mi_ctx)
631 {
632  int changed, c, c_max = 0;
633  int mb_x, mb_y, x, y;
634  int mv_x, mv_y, avg_x, avg_y, dx, dy;
635  int d, ret;
636  Block *block;
637  Cluster *cluster, *cluster_new;
638 
639  do {
640  changed = 0;
641  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
642  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
643  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
644  c = block->cid;
645  cluster = &mi_ctx->clusters[c];
646  mv_x = block->mvs[0][0];
647  mv_y = block->mvs[0][1];
648 
649  if (cluster->nb < 2)
650  continue;
651 
652  avg_x = cluster->sum[0] / cluster->nb;
653  avg_y = cluster->sum[1] / cluster->nb;
654  dx = avg_x - mv_x;
655  dy = avg_y - mv_y;
656 
657  if (FFABS(dx) > CLUSTER_THRESHOLD || FFABS(dy) > CLUSTER_THRESHOLD) {
658 
659  for (d = 1; d < 5; d++)
660  for (y = FFMAX(mb_y - d, 0); y < FFMIN(mb_y + d + 1, mi_ctx->b_height); y++)
661  for (x = FFMAX(mb_x - d, 0); x < FFMIN(mb_x + d + 1, mi_ctx->b_width); x++) {
662  Block *nb = &mi_ctx->int_blocks[x + y * mi_ctx->b_width];
663  if (nb->cid > block->cid) {
664  if (nb->cid < c || c == block->cid)
665  c = nb->cid;
666  }
667  }
668 
669  if (c == block->cid)
670  c = c_max + 1;
671 
672  if (c >= NB_CLUSTERS) {
673  continue;
674  }
675 
676  cluster_new = &mi_ctx->clusters[c];
677  cluster_new->sum[0] += mv_x;
678  cluster_new->sum[1] += mv_y;
679  cluster->sum[0] -= mv_x;
680  cluster->sum[1] -= mv_y;
681  cluster_new->nb++;
682  cluster->nb--;
683 
684  c_max = FFMAX(c_max, c);
685  block->cid = c;
686 
687  changed = 1;
688  }
689  }
690  } while (changed);
691 
692  /* find boundaries */
693  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
694  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
695  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
696  for (y = FFMAX(mb_y - 1, 0); y < FFMIN(mb_y + 2, mi_ctx->b_height); y++)
697  for (x = FFMAX(mb_x - 1, 0); x < FFMIN(mb_x + 2, mi_ctx->b_width); x++) {
698  dx = x - mb_x;
699  dy = y - mb_y;
700 
701  if ((x - mb_x) && (y - mb_y) || !dx && !dy)
702  continue;
703 
704  if (!mb_x || !mb_y || mb_x == mi_ctx->b_width - 1 || mb_y == mi_ctx->b_height - 1)
705  continue;
706 
707  if (block->cid != mi_ctx->int_blocks[x + y * mi_ctx->b_width].cid) {
708  if (!dx && block->cid == mi_ctx->int_blocks[x + (mb_y - dy) * mi_ctx->b_width].cid ||
709  !dy && block->cid == mi_ctx->int_blocks[(mb_x - dx) + y * mi_ctx->b_width].cid) {
710  if (ret = var_size_bme(mi_ctx, block, mb_x << mi_ctx->log2_mb_size, mb_y << mi_ctx->log2_mb_size, mi_ctx->log2_mb_size))
711  return ret;
712  }
713  }
714  }
715  }
716 
717  return 0;
718 }
719 
720 static int inject_frame(AVFilterLink *inlink, AVFrame *avf_in)
721 {
722  AVFilterContext *ctx = inlink->dst;
723  MIContext *mi_ctx = ctx->priv;
724  Frame frame_tmp;
725  int mb_x, mb_y, dir;
726 
727  av_frame_free(&mi_ctx->frames[0].avf);
728  frame_tmp = mi_ctx->frames[0];
729  memmove(&mi_ctx->frames[0], &mi_ctx->frames[1], sizeof(mi_ctx->frames[0]) * (NB_FRAMES - 1));
730  mi_ctx->frames[NB_FRAMES - 1] = frame_tmp;
731  mi_ctx->frames[NB_FRAMES - 1].avf = avf_in;
732 
733  if (mi_ctx->mi_mode == MI_MODE_MCI) {
734 
735  if (mi_ctx->me_method == AV_ME_METHOD_EPZS) {
736  mi_ctx->mv_table[2] = memcpy(mi_ctx->mv_table[2], mi_ctx->mv_table[1], sizeof(*mi_ctx->mv_table[1]) * mi_ctx->b_count);
737  mi_ctx->mv_table[1] = memcpy(mi_ctx->mv_table[1], mi_ctx->mv_table[0], sizeof(*mi_ctx->mv_table[0]) * mi_ctx->b_count);
738  }
739 
740  if (mi_ctx->me_mode == ME_MODE_BIDIR) {
741 
742  if (mi_ctx->frames[1].avf) {
743  for (dir = 0; dir < 2; dir++) {
744  mi_ctx->me_ctx.linesize = mi_ctx->frames[2].avf->linesize[0];
745  mi_ctx->me_ctx.data_cur = mi_ctx->frames[2].avf->data[0];
746  mi_ctx->me_ctx.data_ref = mi_ctx->frames[dir ? 3 : 1].avf->data[0];
747 
748  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
749  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++)
750  search_mv(mi_ctx, mi_ctx->frames[2].blocks, mb_x, mb_y, dir);
751  }
752  }
753 
754  } else if (mi_ctx->me_mode == ME_MODE_BILAT) {
755  Block *block;
756  int i, ret;
757 
758  if (!mi_ctx->frames[0].avf)
759  return 0;
760 
761  mi_ctx->me_ctx.linesize = mi_ctx->frames[0].avf->linesize[0];
762  mi_ctx->me_ctx.data_cur = mi_ctx->frames[1].avf->data[0];
763  mi_ctx->me_ctx.data_ref = mi_ctx->frames[2].avf->data[0];
764 
765  bilateral_me(mi_ctx);
766 
767  if (mi_ctx->mc_mode == MC_MODE_AOBMC) {
768 
769  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
770  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
771  int x_mb = mb_x << mi_ctx->log2_mb_size;
772  int y_mb = mb_y << mi_ctx->log2_mb_size;
773  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
774 
775  block->sbad = get_sbad(&mi_ctx->me_ctx, x_mb, y_mb, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]);
776  }
777  }
778 
779  if (mi_ctx->vsbmc) {
780 
781  for (i = 0; i < NB_CLUSTERS; i++) {
782  mi_ctx->clusters[i].sum[0] = 0;
783  mi_ctx->clusters[i].sum[1] = 0;
784  mi_ctx->clusters[i].nb = 0;
785  }
786 
787  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
788  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
789  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
790 
791  mi_ctx->clusters[0].sum[0] += block->mvs[0][0];
792  mi_ctx->clusters[0].sum[1] += block->mvs[0][1];
793  }
794 
795  mi_ctx->clusters[0].nb = mi_ctx->b_count;
796 
797  if (ret = cluster_mvs(mi_ctx))
798  return ret;
799  }
800  }
801  }
802 
803  return 0;
804 }
805 
806 static int detect_scene_change(MIContext *mi_ctx)
807 {
808  AVMotionEstContext *me_ctx = &mi_ctx->me_ctx;
809  int x, y;
810  int linesize = me_ctx->linesize;
811  uint8_t *p1 = mi_ctx->frames[1].avf->data[0];
812  uint8_t *p2 = mi_ctx->frames[2].avf->data[0];
813 
814  if (mi_ctx->scd_method == SCD_METHOD_FDIFF) {
815  double ret = 0, mafd, diff;
816  int64_t sad;
817 
818  for (sad = y = 0; y < me_ctx->height; y += 8)
819  for (x = 0; x < linesize; x += 8)
820  sad += mi_ctx->sad(p1 + x + y * linesize, linesize, p2 + x + y * linesize, linesize);
821 
822  emms_c();
823  mafd = (double) sad / (me_ctx->height * me_ctx->width * 3);
824  diff = fabs(mafd - mi_ctx->prev_mafd);
825  ret = av_clipf(FFMIN(mafd, diff), 0, 100.0);
826  mi_ctx->prev_mafd = mafd;
827 
828  return ret >= mi_ctx->scd_threshold;
829  }
830 
831  return 0;
832 }
833 
834 #define ADD_PIXELS(b_weight, mv_x, mv_y)\
835  do {\
836  if (!b_weight || pixel->nb + 1 >= NB_PIXEL_MVS)\
837  continue;\
838  pixel->refs[pixel->nb] = 1;\
839  pixel->weights[pixel->nb] = b_weight * (ALPHA_MAX - alpha);\
840  pixel->mvs[pixel->nb][0] = av_clip((mv_x * alpha) / ALPHA_MAX, x_min, x_max);\
841  pixel->mvs[pixel->nb][1] = av_clip((mv_y * alpha) / ALPHA_MAX, y_min, y_max);\
842  pixel->nb++;\
843  pixel->refs[pixel->nb] = 2;\
844  pixel->weights[pixel->nb] = b_weight * alpha;\
845  pixel->mvs[pixel->nb][0] = av_clip(-mv_x * (ALPHA_MAX - alpha) / ALPHA_MAX, x_min, x_max);\
846  pixel->mvs[pixel->nb][1] = av_clip(-mv_y * (ALPHA_MAX - alpha) / ALPHA_MAX, y_min, y_max);\
847  pixel->nb++;\
848  } while(0)
849 
850 static void bidirectional_obmc(MIContext *mi_ctx, int alpha)
851 {
852  int x, y;
853  int width = mi_ctx->frames[0].avf->width;
854  int height = mi_ctx->frames[0].avf->height;
855  int mb_y, mb_x, dir;
856 
857  for (y = 0; y < height; y++)
858  for (x = 0; x < width; x++)
859  mi_ctx->pixels[x + y * width].nb = 0;
860 
861  for (dir = 0; dir < 2; dir++)
862  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
863  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
864  int a = dir ? alpha : (ALPHA_MAX - alpha);
865  int mv_x = mi_ctx->frames[2 - dir].blocks[mb_x + mb_y * mi_ctx->b_width].mvs[dir][0];
866  int mv_y = mi_ctx->frames[2 - dir].blocks[mb_x + mb_y * mi_ctx->b_width].mvs[dir][1];
867  int start_x, start_y;
868  int startc_x, startc_y, endc_x, endc_y;
869 
870  start_x = (mb_x << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2 + mv_x * a / ALPHA_MAX;
871  start_y = (mb_y << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2 + mv_y * a / ALPHA_MAX;
872 
873  startc_x = av_clip(start_x, 0, width - 1);
874  startc_y = av_clip(start_y, 0, height - 1);
875  endc_x = av_clip(start_x + (2 << mi_ctx->log2_mb_size), 0, width - 1);
876  endc_y = av_clip(start_y + (2 << mi_ctx->log2_mb_size), 0, height - 1);
877 
878  if (dir) {
879  mv_x = -mv_x;
880  mv_y = -mv_y;
881  }
882 
883  for (y = startc_y; y < endc_y; y++) {
884  int y_min = -y;
885  int y_max = height - y - 1;
886  for (x = startc_x; x < endc_x; x++) {
887  int x_min = -x;
888  int x_max = width - x - 1;
889  int obmc_weight = obmc_tab_linear[4 - mi_ctx->log2_mb_size][(x - start_x) + ((y - start_y) << (mi_ctx->log2_mb_size + 1))];
890  Pixel *pixel = &mi_ctx->pixels[x + y * width];
891 
892  ADD_PIXELS(obmc_weight, mv_x, mv_y);
893  }
894  }
895  }
896 }
897 
898 static void set_frame_data(MIContext *mi_ctx, int alpha, AVFrame *avf_out)
899 {
900  int x, y, plane;
901 
902  for (plane = 0; plane < mi_ctx->nb_planes; plane++) {
903  int width = avf_out->width;
904  int height = avf_out->height;
905  int chroma = plane == 1 || plane == 2;
906 
907  for (y = 0; y < height; y++)
908  for (x = 0; x < width; x++) {
909  int x_mv, y_mv;
910  int weight_sum = 0;
911  int i, val = 0;
912  Pixel *pixel = &mi_ctx->pixels[x + y * avf_out->width];
913 
914  for (i = 0; i < pixel->nb; i++)
915  weight_sum += pixel->weights[i];
916 
917  if (!weight_sum || !pixel->nb) {
918  pixel->weights[0] = ALPHA_MAX - alpha;
919  pixel->refs[0] = 1;
920  pixel->mvs[0][0] = 0;
921  pixel->mvs[0][1] = 0;
922  pixel->weights[1] = alpha;
923  pixel->refs[1] = 2;
924  pixel->mvs[1][0] = 0;
925  pixel->mvs[1][1] = 0;
926  pixel->nb = 2;
927 
928  weight_sum = ALPHA_MAX;
929  }
930 
931  for (i = 0; i < pixel->nb; i++) {
932  Frame *frame = &mi_ctx->frames[pixel->refs[i]];
933  if (chroma) {
934  x_mv = (x >> mi_ctx->log2_chroma_w) + pixel->mvs[i][0] / (1 << mi_ctx->log2_chroma_w);
935  y_mv = (y >> mi_ctx->log2_chroma_h) + pixel->mvs[i][1] / (1 << mi_ctx->log2_chroma_h);
936  } else {
937  x_mv = x + pixel->mvs[i][0];
938  y_mv = y + pixel->mvs[i][1];
939  }
940 
941  val += pixel->weights[i] * frame->avf->data[plane][x_mv + y_mv * frame->avf->linesize[plane]];
942  }
943 
944  val = ROUNDED_DIV(val, weight_sum);
945 
946  if (chroma)
947  avf_out->data[plane][(x >> mi_ctx->log2_chroma_w) + (y >> mi_ctx->log2_chroma_h) * avf_out->linesize[plane]] = val;
948  else
949  avf_out->data[plane][x + y * avf_out->linesize[plane]] = val;
950  }
951  }
952 }
953 
954 static void var_size_bmc(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n, int alpha)
955 {
956  int sb_x, sb_y;
957  int width = mi_ctx->frames[0].avf->width;
958  int height = mi_ctx->frames[0].avf->height;
959 
960  for (sb_y = 0; sb_y < 2; sb_y++)
961  for (sb_x = 0; sb_x < 2; sb_x++) {
962  Block *sb = &block->subs[sb_x + sb_y * 2];
963 
964  if (sb->sb)
965  var_size_bmc(mi_ctx, sb, x_mb + (sb_x << (n - 1)), y_mb + (sb_y << (n - 1)), n - 1, alpha);
966  else {
967  int x, y;
968  int mv_x = sb->mvs[0][0] * 2;
969  int mv_y = sb->mvs[0][1] * 2;
970 
971  int start_x = x_mb + (sb_x << (n - 1));
972  int start_y = y_mb + (sb_y << (n - 1));
973  int end_x = start_x + (1 << (n - 1));
974  int end_y = start_y + (1 << (n - 1));
975 
976  for (y = start_y; y < end_y; y++) {
977  int y_min = -y;
978  int y_max = height - y - 1;
979  for (x = start_x; x < end_x; x++) {
980  int x_min = -x;
981  int x_max = width - x - 1;
982  Pixel *pixel = &mi_ctx->pixels[x + y * width];
983 
984  ADD_PIXELS(PX_WEIGHT_MAX, mv_x, mv_y);
985  }
986  }
987  }
988  }
989 }
990 
991 static void bilateral_obmc(MIContext *mi_ctx, Block *block, int mb_x, int mb_y, int alpha)
992 {
993  int x, y;
994  int width = mi_ctx->frames[0].avf->width;
995  int height = mi_ctx->frames[0].avf->height;
996 
997  Block *nb;
998  int nb_x, nb_y;
999  uint64_t sbads[9];
1000 
1001  int mv_x = block->mvs[0][0] * 2;
1002  int mv_y = block->mvs[0][1] * 2;
1003  int start_x, start_y;
1004  int startc_x, startc_y, endc_x, endc_y;
1005 
1006  if (mi_ctx->mc_mode == MC_MODE_AOBMC)
1007  for (nb_y = FFMAX(0, mb_y - 1); nb_y < FFMIN(mb_y + 2, mi_ctx->b_height); nb_y++)
1008  for (nb_x = FFMAX(0, mb_x - 1); nb_x < FFMIN(mb_x + 2, mi_ctx->b_width); nb_x++) {
1009  int x_nb = nb_x << mi_ctx->log2_mb_size;
1010  int y_nb = nb_y << mi_ctx->log2_mb_size;
1011 
1012  if (nb_x - mb_x || nb_y - mb_y)
1013  sbads[nb_x - mb_x + 1 + (nb_y - mb_y + 1) * 3] = get_sbad(&mi_ctx->me_ctx, x_nb, y_nb, x_nb + block->mvs[0][0], y_nb + block->mvs[0][1]);
1014  }
1015 
1016  start_x = (mb_x << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2;
1017  start_y = (mb_y << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2;
1018 
1019  startc_x = av_clip(start_x, 0, width - 1);
1020  startc_y = av_clip(start_y, 0, height - 1);
1021  endc_x = av_clip(start_x + (2 << mi_ctx->log2_mb_size), 0, width - 1);
1022  endc_y = av_clip(start_y + (2 << mi_ctx->log2_mb_size), 0, height - 1);
1023 
1024  for (y = startc_y; y < endc_y; y++) {
1025  int y_min = -y;
1026  int y_max = height - y - 1;
1027  for (x = startc_x; x < endc_x; x++) {
1028  int x_min = -x;
1029  int x_max = width - x - 1;
1030  int obmc_weight = obmc_tab_linear[4 - mi_ctx->log2_mb_size][(x - start_x) + ((y - start_y) << (mi_ctx->log2_mb_size + 1))];
1031  Pixel *pixel = &mi_ctx->pixels[x + y * width];
1032 
1033  if (mi_ctx->mc_mode == MC_MODE_AOBMC) {
1034  nb_x = (((x - start_x) >> (mi_ctx->log2_mb_size - 1)) * 2 - 3) / 2;
1035  nb_y = (((y - start_y) >> (mi_ctx->log2_mb_size - 1)) * 2 - 3) / 2;
1036 
1037  if (nb_x || nb_y) {
1038  uint64_t sbad = sbads[nb_x + 1 + (nb_y + 1) * 3];
1039  nb = &mi_ctx->int_blocks[mb_x + nb_x + (mb_y + nb_y) * mi_ctx->b_width];
1040 
1041  if (sbad && sbad != UINT64_MAX && nb->sbad != UINT64_MAX) {
1042  int phi = av_clip(ALPHA_MAX * nb->sbad / sbad, 0, ALPHA_MAX);
1043  obmc_weight = obmc_weight * phi / ALPHA_MAX;
1044  }
1045  }
1046  }
1047 
1048  ADD_PIXELS(obmc_weight, mv_x, mv_y);
1049  }
1050  }
1051 }
1052 
1053 static void interpolate(AVFilterLink *inlink, AVFrame *avf_out)
1054 {
1055  AVFilterContext *ctx = inlink->dst;
1056  AVFilterLink *outlink = ctx->outputs[0];
1057  MIContext *mi_ctx = ctx->priv;
1058  int x, y;
1059  int plane, alpha;
1060  int64_t pts;
1061 
1062  pts = av_rescale(avf_out->pts, (int64_t) ALPHA_MAX * outlink->time_base.num * inlink->time_base.den,
1063  (int64_t) outlink->time_base.den * inlink->time_base.num);
1064 
1065  alpha = (pts - mi_ctx->frames[1].avf->pts * ALPHA_MAX) / (mi_ctx->frames[2].avf->pts - mi_ctx->frames[1].avf->pts);
1066  alpha = av_clip(alpha, 0, ALPHA_MAX);
1067 
1068  if (alpha == 0 || alpha == ALPHA_MAX) {
1069  av_frame_copy(avf_out, alpha ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf);
1070  return;
1071  }
1072 
1073  if (mi_ctx->scene_changed) {
1074  /* duplicate frame */
1075  av_frame_copy(avf_out, alpha > ALPHA_MAX / 2 ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf);
1076  return;
1077  }
1078 
1079  switch(mi_ctx->mi_mode) {
1080  case MI_MODE_DUP:
1081  av_frame_copy(avf_out, alpha > ALPHA_MAX / 2 ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf);
1082 
1083  break;
1084  case MI_MODE_BLEND:
1085  for (plane = 0; plane < mi_ctx->nb_planes; plane++) {
1086  int width = avf_out->width;
1087  int height = avf_out->height;
1088 
1089  if (plane == 1 || plane == 2) {
1090  width = AV_CEIL_RSHIFT(width, mi_ctx->log2_chroma_w);
1091  height = AV_CEIL_RSHIFT(height, mi_ctx->log2_chroma_h);
1092  }
1093 
1094  for (y = 0; y < height; y++) {
1095  for (x = 0; x < width; x++) {
1096  avf_out->data[plane][x + y * avf_out->linesize[plane]] =
1097  alpha * mi_ctx->frames[2].avf->data[plane][x + y * mi_ctx->frames[2].avf->linesize[plane]] +
1098  ((ALPHA_MAX - alpha) * mi_ctx->frames[1].avf->data[plane][x + y * mi_ctx->frames[1].avf->linesize[plane]] + 512) >> 10;
1099  }
1100  }
1101  }
1102 
1103  break;
1104  case MI_MODE_MCI:
1105  if (mi_ctx->me_mode == ME_MODE_BIDIR) {
1106  bidirectional_obmc(mi_ctx, alpha);
1107  set_frame_data(mi_ctx, alpha, avf_out);
1108 
1109  } else if (mi_ctx->me_mode == ME_MODE_BILAT) {
1110  int mb_x, mb_y;
1111  Block *block;
1112 
1113  for (y = 0; y < mi_ctx->frames[0].avf->height; y++)
1114  for (x = 0; x < mi_ctx->frames[0].avf->width; x++)
1115  mi_ctx->pixels[x + y * mi_ctx->frames[0].avf->width].nb = 0;
1116 
1117  for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++)
1118  for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) {
1119  block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width];
1120 
1121  if (block->sb)
1122  var_size_bmc(mi_ctx, block, mb_x << mi_ctx->log2_mb_size, mb_y << mi_ctx->log2_mb_size, mi_ctx->log2_mb_size, alpha);
1123 
1124  bilateral_obmc(mi_ctx, block, mb_x, mb_y, alpha);
1125 
1126  }
1127 
1128  set_frame_data(mi_ctx, alpha, avf_out);
1129  }
1130 
1131  break;
1132  }
1133 }
1134 
1135 static int filter_frame(AVFilterLink *inlink, AVFrame *avf_in)
1136 {
1137  AVFilterContext *ctx = inlink->dst;
1138  AVFilterLink *outlink = ctx->outputs[0];
1139  MIContext *mi_ctx = ctx->priv;
1140  int ret;
1141 
1142  if (avf_in->pts == AV_NOPTS_VALUE) {
1143  ret = ff_filter_frame(ctx->outputs[0], avf_in);
1144  return ret;
1145  }
1146 
1147  if (!mi_ctx->frames[NB_FRAMES - 1].avf || avf_in->pts < mi_ctx->frames[NB_FRAMES - 1].avf->pts) {
1148  av_log(ctx, AV_LOG_VERBOSE, "Initializing out pts from input pts %"PRId64"\n", avf_in->pts);
1149  mi_ctx->out_pts = av_rescale_q(avf_in->pts, inlink->time_base, outlink->time_base);
1150  }
1151 
1152  if (!mi_ctx->frames[NB_FRAMES - 1].avf)
1153  if (ret = inject_frame(inlink, av_frame_clone(avf_in)))
1154  return ret;
1155 
1156  if (ret = inject_frame(inlink, avf_in))
1157  return ret;
1158 
1159  if (!mi_ctx->frames[0].avf)
1160  return 0;
1161 
1162  mi_ctx->scene_changed = detect_scene_change(mi_ctx);
1163 
1164  for (;;) {
1165  AVFrame *avf_out;
1166 
1167  if (av_compare_ts(mi_ctx->out_pts, outlink->time_base, mi_ctx->frames[2].avf->pts, inlink->time_base) > 0)
1168  break;
1169 
1170  if (!(avf_out = ff_get_video_buffer(ctx->outputs[0], inlink->w, inlink->h)))
1171  return AVERROR(ENOMEM);
1172 
1173  av_frame_copy_props(avf_out, mi_ctx->frames[NB_FRAMES - 1].avf);
1174  avf_out->pts = mi_ctx->out_pts++;
1175 
1176  interpolate(inlink, avf_out);
1177 
1178  if ((ret = ff_filter_frame(ctx->outputs[0], avf_out)) < 0)
1179  return ret;
1180  }
1181 
1182  return 0;
1183 }
1184 
1185 static av_cold void free_blocks(Block *block, int sb)
1186 {
1187  if (block->subs)
1188  free_blocks(block->subs, 1);
1189  if (sb)
1190  av_freep(&block);
1191 }
1192 
1193 static av_cold void uninit(AVFilterContext *ctx)
1194 {
1195  MIContext *mi_ctx = ctx->priv;
1196  int i, m;
1197 
1198  av_freep(&mi_ctx->pixels);
1199  if (mi_ctx->int_blocks)
1200  for (m = 0; m < mi_ctx->b_count; m++)
1201  free_blocks(&mi_ctx->int_blocks[m], 0);
1202  av_freep(&mi_ctx->int_blocks);
1203 
1204  for (i = 0; i < NB_FRAMES; i++) {
1205  Frame *frame = &mi_ctx->frames[i];
1206  av_freep(&frame->blocks);
1207  av_frame_free(&frame->avf);
1208  }
1209 
1210  for (i = 0; i < 3; i++)
1211  av_freep(&mi_ctx->mv_table[i]);
1212 }
1213 
1214 static const AVFilterPad minterpolate_inputs[] = {
1215  {
1216  .name = "default",
1217  .type = AVMEDIA_TYPE_VIDEO,
1218  .filter_frame = filter_frame,
1219  .config_props = config_input,
1220  },
1221  { NULL }
1222 };
1223 
1224 static const AVFilterPad minterpolate_outputs[] = {
1225  {
1226  .name = "default",
1227  .type = AVMEDIA_TYPE_VIDEO,
1228  .config_props = config_output,
1229  },
1230  { NULL }
1231 };
1232 
1233 AVFilter ff_vf_minterpolate = {
1234  .name = "minterpolate",
1235  .description = NULL_IF_CONFIG_SMALL("Frame rate conversion using Motion Interpolation."),
1236  .priv_size = sizeof(MIContext),
1237  .priv_class = &minterpolate_class,
1238  .uninit = uninit,
1239  .query_formats = query_formats,
1240  .inputs = minterpolate_inputs,
1241  .outputs = minterpolate_outputs,
1242 };
plane
int plane
Definition: avisynth_c.h:422
ff_me_search_hexbs
uint64_t ff_me_search_hexbs(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:299
obmc_linear32
static const uint8_t obmc_linear32[1024]
Definition: vf_minterpolate.c:53
NULL
#define NULL
Definition: coverity.c:32
val
const char const char void * val
Definition: avisynth_c.h:771
PX_WEIGHT_MAX
#define PX_WEIGHT_MAX
Definition: vf_minterpolate.c:50
alpha
static float alpha(float a)
Definition: af_superequalizer.c:109
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2419
chroma
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror)
Definition: vf_waveform.c:1344
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
AVOption
AVOption.
Definition: opt.h:246
minterpolate_outputs
static const AVFilterPad minterpolate_outputs[]
Definition: vf_minterpolate.c:1224
obmc_linear4
static const uint8_t obmc_linear4[16]
Definition: vf_minterpolate.c:118
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
MIContext::pixels
Pixel * pixels
Definition: vf_minterpolate.c:175
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2459
avfilter.h
Main libavfilter public API header.
desc
const char * desc
Definition: nvenc.c:60
AV_OPT_TYPE_INT
Definition: opt.h:223
MI_MODE_BLEND
Definition: vf_minterpolate.c:131
AVMotionEstContext::pred_y
int pred_y
median predictor y
Definition: motion_estimation.h:57
AVRational::num
int num
Numerator.
Definition: rational.h:59
AV_ME_METHOD_TDLS
#define AV_ME_METHOD_TDLS
Definition: motion_estimation.h:28
NB_PIXEL_MVS
#define NB_PIXEL_MVS
Definition: vf_minterpolate.c:45
free_blocks
static av_cold void free_blocks(Block *block, int sb)
Definition: vf_minterpolate.c:1185
minterpolate_options
static const AVOption minterpolate_options[]
Definition: vf_minterpolate.c:196
bilateral_obmc
static void bilateral_obmc(MIContext *mi_ctx, Block *block, int mb_x, int mb_y, int alpha)
Definition: vf_minterpolate.c:991
OFFSET
#define OFFSET(x)
Definition: vf_minterpolate.c:192
MI_MODE_MCI
Definition: vf_minterpolate.c:132
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:92
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
Cluster::sum
int64_t sum[2]
Definition: vf_minterpolate.c:136
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVMotionEstContext::preds
AVMotionEstPredictor preds[2]
Definition: motion_estimation.h:58
Frame
Definition: ffplay.c:154
block
static int16_t block[64]
Definition: dct.c:115
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_ME_METHOD_DS
#define AV_ME_METHOD_DS
Definition: motion_estimation.h:31
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1151
Block::mvs
int16_t mvs[2][2]
Definition: vf_minterpolate.c:141
MI_MODE_DUP
Definition: vf_minterpolate.c:130
ff_me_search_fss
uint64_t ff_me_search_fss(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:212
AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
AV_ME_METHOD_NTSS
#define AV_ME_METHOD_NTSS
Definition: motion_estimation.h:29
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
interpolate
static void interpolate(AVFilterLink *inlink, AVFrame *avf_out)
Definition: vf_minterpolate.c:1053
opt.h
AVOptions.
AVMotionEstContext::pred_x
int pred_x
median predictor x
Definition: motion_estimation.h:56
ff_me_search_ds
uint64_t ff_me_search_ds(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:244
MIContext::clusters
Cluster clusters[NB_CLUSTERS]
Definition: vf_minterpolate.c:173
emms_c
#define emms_c()
Definition: internal.h:54
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:294
AV_ME_METHOD_EPZS
#define AV_ME_METHOD_EPZS
Definition: motion_estimation.h:33
get_sbad
static uint64_t get_sbad(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
Definition: vf_minterpolate.c:250
ff_me_search_umh
uint64_t ff_me_search_umh(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:373
frame
static AVFrame * frame
Definition: demuxing_decoding.c:53
height
#define height
AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
Frame
Definition: mxfdec.c:271
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
CONST
#define CONST(name, help, val, unit)
Definition: vf_minterpolate.c:194
motion_estimation.h
set_frame_data
static void set_frame_data(MIContext *mi_ctx, int alpha, AVFrame *avf_out)
Definition: vf_minterpolate.c:898
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
bilateral_me
static void bilateral_me(MIContext *mi_ctx)
Definition: vf_minterpolate.c:547
ROUNDED_DIV
#define ROUNDED_DIV(a, b)
Definition: common.h:56
MIContext::out_pts
int64_t out_pts
Definition: vf_minterpolate.c:177
MC_MODE_AOBMC
#define MC_MODE_AOBMC
Definition: vf_minterpolate.c:39
obmc_linear16
static const uint8_t obmc_linear16[256]
Definition: vf_minterpolate.c:88
AV_ME_METHOD_HEXBS
#define AV_ME_METHOD_HEXBS
Definition: motion_estimation.h:32
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
Block::subs
struct Block * subs
Definition: vf_minterpolate.c:145
get_sad_ob
static uint64_t get_sad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
Definition: vf_minterpolate.c:301
AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:188
AVFrame::width
int width
Definition: frame.h:259
ff_set_common_formats
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
AVERROR
#define AVERROR(e)
Definition: error.h:43
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
MIContext::scd_threshold
double scd_threshold
Definition: vf_minterpolate.c:185
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:353
ff_me_search_epzs
uint64_t ff_me_search_epzs(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:332
av_pixelutils_sad_fn
int(* av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)
Sum of abs(src1[x] - src2[x])
Definition: pixelutils.h:29
var_size_bme
static int var_size_bme(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n)
Definition: vf_minterpolate.c:568
width
uint16_t width
Definition: gdv.c:47
ALPHA_MAX
#define ALPHA_MAX
Definition: vf_minterpolate.c:48
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *avf_in)
Definition: vf_minterpolate.c:1135
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
obmc_tab_linear
static const uint8_t *const obmc_tab_linear[4]
Definition: vf_minterpolate.c:125
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
av_mallocz_array
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:229
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:740
av_compare_ts
int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b)
Compare two timestamps each in its own time base.
Definition: mathematics.c:147
AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
cluster_mvs
static int cluster_mvs(MIContext *mi_ctx)
Definition: vf_minterpolate.c:630
ff_vf_minterpolate
AVFilter ff_vf_minterpolate
Definition: vf_minterpolate.c:1233
ff_me_search_tdls
uint64_t ff_me_search_tdls(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:127
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
MC_MODE_OBMC
#define MC_MODE_OBMC
Definition: vf_minterpolate.c:38
ctx
AVFormatContext * ctx
Definition: movenc.c:48
MIContext::frame_rate
AVRational frame_rate
Definition: vf_minterpolate.c:163
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
n
int n
Definition: avisynth_c.h:684
outputs
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:389
ff_me_search_ntss
uint64_t ff_me_search_ntss(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:159
AV_ME_METHOD_UMH
#define AV_ME_METHOD_UMH
Definition: motion_estimation.h:34
AV_ME_METHOD_TSS
#define AV_ME_METHOD_TSS
Definition: motion_estimation.h:27
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:492
SCD_METHOD_FDIFF
#define SCD_METHOD_FDIFF
Definition: vf_minterpolate.c:42
FLAGS
#define FLAGS
Definition: vf_minterpolate.c:193
mv
static const int8_t mv[256][2]
Definition: 4xm.c:77
ff_me_init_context
void ff_me_init_context(AVMotionEstContext *me_ctx, int mb_size, int search_param, int width, int height, int x_min, int x_max, int y_min, int y_max)
Definition: motion_estimation.c:45
inputs
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:379
NB_FRAMES
#define NB_FRAMES
Definition: vf_minterpolate.c:44
AV_OPT_TYPE_DOUBLE
Definition: opt.h:225
motion_vector.h
MIContext::mv_table
int(*[3] mv_table)[2][2]
Definition: vf_minterpolate.c:176
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:189
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_minterpolate.c:327
NB_CLUSTERS
#define NB_CLUSTERS
Definition: vf_minterpolate.c:46
detect_scene_change
static int detect_scene_change(MIContext *mi_ctx)
Definition: vf_minterpolate.c:806
ME_MODE_BIDIR
#define ME_MODE_BIDIR
Copyright (c) 2014-2015 Michael Niedermayer michaelni@gmx.at Copyright (c) 2016 Davinder Singh (DSM_)...
Definition: vf_minterpolate.c:35
var_size_bmc
static void var_size_bmc(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n, int alpha)
Definition: vf_minterpolate.c:954
AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
ADD_PIXELS
#define ADD_PIXELS(b_weight, mv_x, mv_y)
Definition: vf_minterpolate.c:834
av_pixelutils_get_sad_fn
av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
Get a potentially optimized pointer to a Sum-of-absolute-differences function (see the av_pixelutils_...
Definition: pixelutils.c:64
MIContext::int_blocks
Block * int_blocks
Definition: vf_minterpolate.c:174
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AVFilter
Filter definition.
Definition: avfilter.h:144
minterpolate_inputs
static const AVFilterPad minterpolate_inputs[]
Definition: vf_minterpolate.c:1214
MIContext::prev_mafd
double prev_mafd
Definition: vf_minterpolate.c:184
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
SCD_METHOD_NONE
#define SCD_METHOD_NONE
Definition: vf_minterpolate.c:41
Pixel::refs
int8_t refs[NB_PIXEL_MVS]
Definition: vf_minterpolate.c:151
AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
Definition: opt.h:236
mid_pred
#define mid_pred
Definition: mathops.h:97
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
AV_ME_METHOD_FSS
#define AV_ME_METHOD_FSS
Definition: motion_estimation.h:30
ff_me_search_esa
uint64_t ff_me_search_esa(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:77
Frame::blocks
Block * blocks
Definition: vf_minterpolate.c:157
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
pixel
uint8_t pixel
Definition: tiny_ssim.c:42
Frame::avf
AVFrame * avf
Definition: vf_minterpolate.c:156
AVMotionEstContext::get_cost
uint64_t(* get_cost)(struct AVMotionEstContext *me_ctx, int x_mb, int y_mb, int mv_x, int mv_y)
Definition: motion_estimation.h:60
pts
static int64_t pts
Global timestamp for the audio frames.
Definition: transcode_aac.c:567
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_minterpolate.c:388
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int
int
Definition: ffmpeg_filter.c:190
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:70
Block::sbad
uint64_t sbad
Definition: vf_minterpolate.c:143
common.h
common internal and external API header
if
if(ret< 0)
Definition: vf_mcdeint.c:279
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(minterpolate)
MIContext::mi_mode
enum MIMode mi_mode
Definition: vf_minterpolate.c:164
Pixel::mvs
int16_t mvs[NB_PIXEL_MVS][2]
Definition: vf_minterpolate.c:149
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
MIContext::me_ctx
AVMotionEstContext me_ctx
Definition: vf_minterpolate.c:162
MIMode
MIMode
Definition: vf_minterpolate.c:129
AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
COST_PRED_SCALE
#define COST_PRED_SCALE
Definition: vf_minterpolate.c:51
AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_ME_METHOD_ESA
#define AV_ME_METHOD_ESA
Copyright (c) 2016 Davinder Singh (DSM_) <ds.mudhar<.com>
Definition: motion_estimation.h:26
ff_me_search_tss
uint64_t ff_me_search_tss(AVMotionEstContext *me_ctx, int x_mb, int y_mb, int *mv)
Definition: motion_estimation.c:96
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_minterpolate.c:230
Pixel::weights
uint32_t weights[NB_PIXEL_MVS]
Definition: vf_minterpolate.c:150
search_mv
static void search_mv(MIContext *mi_ctx, Block *blocks, int mb_x, int mb_y, int dir)
Definition: vf_minterpolate.c:405
ADD_PRED
#define ADD_PRED(preds, px, py)
Definition: vf_minterpolate.c:398
diff
static av_always_inline int diff(const uint32_t a, const uint32_t b)
Definition: vf_palettegen.c:133
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
CLUSTER_THRESHOLD
#define CLUSTER_THRESHOLD
Definition: vf_minterpolate.c:49
AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:272
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
MIContext::frames
Frame frames[NB_FRAMES]
Definition: vf_minterpolate.c:172
AVFrame::height
int height
Definition: frame.h:259
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
inject_frame
static int inject_frame(AVFilterLink *inlink, AVFrame *avf_in)
Definition: vf_minterpolate.c:720
bidirectional_obmc
static void bidirectional_obmc(MIContext *mi_ctx, int alpha)
Definition: vf_minterpolate.c:850
av_ceil_log2_c
static av_always_inline av_const int av_ceil_log2_c(int x)
Compute ceil(log2(x)).
Definition: common.h:308
internal.h
internal API functions
obmc_linear8
static const uint8_t obmc_linear8[64]
Definition: vf_minterpolate.c:107
get_sbad_ob
static uint64_t get_sbad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv)
Definition: vf_minterpolate.c:275
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
MIContext::sad
av_pixelutils_sad_fn sad
Definition: vf_minterpolate.c:183
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_minterpolate.c:1193
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:603
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
ME_MODE_BILAT
#define ME_MODE_BILAT
Definition: vf_minterpolate.c:36
a
a
Definition: h264pred_template.c:468
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
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