| /** |
| * Copyright (c) 2014-2015 Michael Niedermayer <michaelni@gmx.at> |
| * Copyright (c) 2016 Davinder Singh (DSM_) <ds.mudhar<@gmail.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "motion_estimation.h" |
| #include "libavcodec/mathops.h" |
| #include "libavutil/avassert.h" |
| #include "libavutil/common.h" |
| #include "libavutil/motion_vector.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/pixelutils.h" |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| #define ME_MODE_BIDIR 0 |
| #define ME_MODE_BILAT 1 |
| |
| #define MC_MODE_OBMC 0 |
| #define MC_MODE_AOBMC 1 |
| |
| #define SCD_METHOD_NONE 0 |
| #define SCD_METHOD_FDIFF 1 |
| |
| #define NB_FRAMES 4 |
| #define NB_PIXEL_MVS 32 |
| #define NB_CLUSTERS 128 |
| |
| #define ALPHA_MAX 1024 |
| #define CLUSTER_THRESHOLD 4 |
| #define PX_WEIGHT_MAX 255 |
| #define COST_PRED_SCALE 64 |
| |
| static const uint8_t obmc_linear32[1024] = { |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| }; |
| |
| static const uint8_t obmc_linear16[256] = { |
| 0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
| 4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
| 4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
| 8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
| 8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
| 12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
| 12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
| 16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
| 16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
| 12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
| 12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
| 8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
| 8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
| 4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
| 4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
| 0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
| }; |
| |
| static const uint8_t obmc_linear8[64] = { |
| 4, 12, 20, 28, 28, 20, 12, 4, |
| 12, 36, 60, 84, 84, 60, 36, 12, |
| 20, 60,100,140,140,100, 60, 20, |
| 28, 84,140,196,196,140, 84, 28, |
| 28, 84,140,196,196,140, 84, 28, |
| 20, 60,100,140,140,100, 60, 20, |
| 12, 36, 60, 84, 84, 60, 36, 12, |
| 4, 12, 20, 28, 28, 20, 12, 4, |
| }; |
| |
| static const uint8_t obmc_linear4[16] = { |
| 16, 48, 48, 16, |
| 48,144,144, 48, |
| 48,144,144, 48, |
| 16, 48, 48, 16, |
| }; |
| |
| static const uint8_t * const obmc_tab_linear[4]= { |
| obmc_linear32, obmc_linear16, obmc_linear8, obmc_linear4 |
| }; |
| |
| enum MIMode { |
| MI_MODE_DUP = 0, |
| MI_MODE_BLEND = 1, |
| MI_MODE_MCI = 2, |
| }; |
| |
| typedef struct Cluster { |
| int64_t sum[2]; |
| int nb; |
| } Cluster; |
| |
| typedef struct Block { |
| int16_t mvs[2][2]; |
| int cid; |
| uint64_t sbad; |
| int sb; |
| struct Block *subs; |
| } Block; |
| |
| typedef struct Pixel { |
| int16_t mvs[NB_PIXEL_MVS][2]; |
| uint32_t weights[NB_PIXEL_MVS]; |
| int8_t refs[NB_PIXEL_MVS]; |
| int nb; |
| } Pixel; |
| |
| typedef struct Frame { |
| AVFrame *avf; |
| Block *blocks; |
| } Frame; |
| |
| typedef struct MIContext { |
| const AVClass *class; |
| AVMotionEstContext me_ctx; |
| AVRational frame_rate; |
| enum MIMode mi_mode; |
| int mc_mode; |
| int me_mode; |
| int me_method; |
| int mb_size; |
| int search_param; |
| int vsbmc; |
| |
| Frame frames[NB_FRAMES]; |
| Cluster clusters[NB_CLUSTERS]; |
| Block *int_blocks; |
| Pixel *pixels; |
| int (*mv_table[3])[2][2]; |
| int64_t out_pts; |
| int b_width, b_height, b_count; |
| int log2_mb_size; |
| |
| int scd_method; |
| int scene_changed; |
| av_pixelutils_sad_fn sad; |
| double prev_mafd; |
| double scd_threshold; |
| |
| int log2_chroma_w; |
| int log2_chroma_h; |
| int nb_planes; |
| } MIContext; |
| |
| #define OFFSET(x) offsetof(MIContext, x) |
| #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
| #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit } |
| |
| static const AVOption minterpolate_options[] = { |
| { "fps", "output's frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "60"}, 0, INT_MAX, FLAGS }, |
| { "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" }, |
| CONST("dup", "duplicate frames", MI_MODE_DUP, "mi_mode"), |
| CONST("blend", "blend frames", MI_MODE_BLEND, "mi_mode"), |
| CONST("mci", "motion compensated interpolation", MI_MODE_MCI, "mi_mode"), |
| { "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" }, |
| CONST("obmc", "overlapped block motion compensation", MC_MODE_OBMC, "mc_mode"), |
| CONST("aobmc", "adaptive overlapped block motion compensation", MC_MODE_AOBMC, "mc_mode"), |
| { "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" }, |
| CONST("bidir", "bidirectional motion estimation", ME_MODE_BIDIR, "me_mode"), |
| CONST("bilat", "bilateral motion estimation", ME_MODE_BILAT, "me_mode"), |
| { "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" }, |
| CONST("esa", "exhaustive search", AV_ME_METHOD_ESA, "me"), |
| CONST("tss", "three step search", AV_ME_METHOD_TSS, "me"), |
| CONST("tdls", "two dimensional logarithmic search", AV_ME_METHOD_TDLS, "me"), |
| CONST("ntss", "new three step search", AV_ME_METHOD_NTSS, "me"), |
| CONST("fss", "four step search", AV_ME_METHOD_FSS, "me"), |
| CONST("ds", "diamond search", AV_ME_METHOD_DS, "me"), |
| CONST("hexbs", "hexagon-based search", AV_ME_METHOD_HEXBS, "me"), |
| CONST("epzs", "enhanced predictive zonal search", AV_ME_METHOD_EPZS, "me"), |
| CONST("umh", "uneven multi-hexagon search", AV_ME_METHOD_UMH, "me"), |
| { "mb_size", "macroblock size", OFFSET(mb_size), AV_OPT_TYPE_INT, {.i64 = 16}, 4, 16, FLAGS }, |
| { "search_param", "search parameter", OFFSET(search_param), AV_OPT_TYPE_INT, {.i64 = 32}, 4, INT_MAX, FLAGS }, |
| { "vsbmc", "variable-size block motion compensation", OFFSET(vsbmc), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS }, |
| { "scd", "scene change detection method", OFFSET(scd_method), AV_OPT_TYPE_INT, {.i64 = SCD_METHOD_FDIFF}, SCD_METHOD_NONE, SCD_METHOD_FDIFF, FLAGS, "scene" }, |
| CONST("none", "disable detection", SCD_METHOD_NONE, "scene"), |
| CONST("fdiff", "frame difference", SCD_METHOD_FDIFF, "scene"), |
| { "scd_threshold", "scene change threshold", OFFSET(scd_threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 5.0}, 0, 100.0, FLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(minterpolate); |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pix_fmts[] = { |
| AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, |
| AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, |
| AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
| AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_YUVJ411P, |
| AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, |
| AV_PIX_FMT_GRAY8, |
| AV_PIX_FMT_NONE |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static uint64_t get_sbad(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv) |
| { |
| uint8_t *data_cur = me_ctx->data_cur; |
| uint8_t *data_next = me_ctx->data_ref; |
| int linesize = me_ctx->linesize; |
| int mv_x1 = x_mv - x; |
| int mv_y1 = y_mv - y; |
| int mv_x, mv_y, i, j; |
| uint64_t sbad = 0; |
| |
| x = av_clip(x, me_ctx->x_min, me_ctx->x_max); |
| y = av_clip(y, me_ctx->y_min, me_ctx->y_max); |
| 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)); |
| 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)); |
| |
| data_cur += (y + mv_y) * linesize; |
| data_next += (y - mv_y) * linesize; |
| |
| for (j = 0; j < me_ctx->mb_size; j++) |
| for (i = 0; i < me_ctx->mb_size; i++) |
| sbad += FFABS(data_cur[x + mv_x + i + j * linesize] - data_next[x - mv_x + i + j * linesize]); |
| |
| return sbad + (FFABS(mv_x1 - me_ctx->pred_x) + FFABS(mv_y1 - me_ctx->pred_y)) * COST_PRED_SCALE; |
| } |
| |
| static uint64_t get_sbad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv) |
| { |
| uint8_t *data_cur = me_ctx->data_cur; |
| uint8_t *data_next = me_ctx->data_ref; |
| int linesize = me_ctx->linesize; |
| int x_min = me_ctx->x_min + me_ctx->mb_size / 2; |
| int x_max = me_ctx->x_max - me_ctx->mb_size / 2; |
| int y_min = me_ctx->y_min + me_ctx->mb_size / 2; |
| int y_max = me_ctx->y_max - me_ctx->mb_size / 2; |
| int mv_x1 = x_mv - x; |
| int mv_y1 = y_mv - y; |
| int mv_x, mv_y, i, j; |
| uint64_t sbad = 0; |
| |
| x = av_clip(x, x_min, x_max); |
| y = av_clip(y, y_min, y_max); |
| mv_x = av_clip(x_mv - x, -FFMIN(x - x_min, x_max - x), FFMIN(x - x_min, x_max - x)); |
| mv_y = av_clip(y_mv - y, -FFMIN(y - y_min, y_max - y), FFMIN(y - y_min, y_max - y)); |
| |
| for (j = -me_ctx->mb_size / 2; j < me_ctx->mb_size * 3 / 2; j++) |
| for (i = -me_ctx->mb_size / 2; i < me_ctx->mb_size * 3 / 2; i++) |
| sbad += FFABS(data_cur[x + mv_x + i + (y + mv_y + j) * linesize] - data_next[x - mv_x + i + (y - mv_y + j) * linesize]); |
| |
| return sbad + (FFABS(mv_x1 - me_ctx->pred_x) + FFABS(mv_y1 - me_ctx->pred_y)) * COST_PRED_SCALE; |
| } |
| |
| static uint64_t get_sad_ob(AVMotionEstContext *me_ctx, int x, int y, int x_mv, int y_mv) |
| { |
| uint8_t *data_ref = me_ctx->data_ref; |
| uint8_t *data_cur = me_ctx->data_cur; |
| int linesize = me_ctx->linesize; |
| int x_min = me_ctx->x_min + me_ctx->mb_size / 2; |
| int x_max = me_ctx->x_max - me_ctx->mb_size / 2; |
| int y_min = me_ctx->y_min + me_ctx->mb_size / 2; |
| int y_max = me_ctx->y_max - me_ctx->mb_size / 2; |
| int mv_x = x_mv - x; |
| int mv_y = y_mv - y; |
| int i, j; |
| uint64_t sad = 0; |
| |
| x = av_clip(x, x_min, x_max); |
| y = av_clip(y, y_min, y_max); |
| x_mv = av_clip(x_mv, x_min, x_max); |
| y_mv = av_clip(y_mv, y_min, y_max); |
| |
| for (j = -me_ctx->mb_size / 2; j < me_ctx->mb_size * 3 / 2; j++) |
| for (i = -me_ctx->mb_size / 2; i < me_ctx->mb_size * 3 / 2; i++) |
| sad += FFABS(data_ref[x_mv + i + (y_mv + j) * linesize] - data_cur[x + i + (y + j) * linesize]); |
| |
| return sad + (FFABS(mv_x - me_ctx->pred_x) + FFABS(mv_y - me_ctx->pred_y)) * COST_PRED_SCALE; |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| MIContext *mi_ctx = inlink->dst->priv; |
| AVMotionEstContext *me_ctx = &mi_ctx->me_ctx; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| const int height = inlink->h; |
| const int width = inlink->w; |
| int i; |
| |
| mi_ctx->log2_chroma_h = desc->log2_chroma_h; |
| mi_ctx->log2_chroma_w = desc->log2_chroma_w; |
| |
| mi_ctx->nb_planes = av_pix_fmt_count_planes(inlink->format); |
| |
| mi_ctx->log2_mb_size = av_ceil_log2_c(mi_ctx->mb_size); |
| mi_ctx->mb_size = 1 << mi_ctx->log2_mb_size; |
| |
| mi_ctx->b_width = width >> mi_ctx->log2_mb_size; |
| mi_ctx->b_height = height >> mi_ctx->log2_mb_size; |
| mi_ctx->b_count = mi_ctx->b_width * mi_ctx->b_height; |
| |
| for (i = 0; i < NB_FRAMES; i++) { |
| Frame *frame = &mi_ctx->frames[i]; |
| frame->blocks = av_mallocz_array(mi_ctx->b_count, sizeof(Block)); |
| if (!frame->blocks) |
| return AVERROR(ENOMEM); |
| } |
| |
| if (mi_ctx->mi_mode == MI_MODE_MCI) { |
| if (!(mi_ctx->pixels = av_mallocz_array(width * height, sizeof(Pixel)))) |
| return AVERROR(ENOMEM); |
| |
| if (mi_ctx->me_mode == ME_MODE_BILAT) |
| if (!(mi_ctx->int_blocks = av_mallocz_array(mi_ctx->b_count, sizeof(Block)))) |
| return AVERROR(ENOMEM); |
| |
| if (mi_ctx->me_method == AV_ME_METHOD_EPZS) { |
| for (i = 0; i < 3; i++) { |
| mi_ctx->mv_table[i] = av_mallocz_array(mi_ctx->b_count, sizeof(*mi_ctx->mv_table[0])); |
| if (!mi_ctx->mv_table[i]) |
| return AVERROR(ENOMEM); |
| } |
| } |
| } |
| |
| if (mi_ctx->scd_method == SCD_METHOD_FDIFF) { |
| mi_ctx->sad = av_pixelutils_get_sad_fn(3, 3, 2, mi_ctx); |
| if (!mi_ctx->sad) |
| return AVERROR(EINVAL); |
| } |
| |
| 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); |
| |
| if (mi_ctx->me_mode == ME_MODE_BIDIR) |
| me_ctx->get_cost = &get_sad_ob; |
| else if (mi_ctx->me_mode == ME_MODE_BILAT) |
| me_ctx->get_cost = &get_sbad_ob; |
| |
| return 0; |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| MIContext *mi_ctx = outlink->src->priv; |
| |
| outlink->frame_rate = mi_ctx->frame_rate; |
| outlink->time_base = av_inv_q(mi_ctx->frame_rate); |
| |
| return 0; |
| } |
| |
| #define ADD_PRED(preds, px, py)\ |
| do {\ |
| preds.mvs[preds.nb][0] = px;\ |
| preds.mvs[preds.nb][1] = py;\ |
| preds.nb++;\ |
| } while(0) |
| |
| static void search_mv(MIContext *mi_ctx, Block *blocks, int mb_x, int mb_y, int dir) |
| { |
| AVMotionEstContext *me_ctx = &mi_ctx->me_ctx; |
| AVMotionEstPredictor *preds = me_ctx->preds; |
| Block *block = &blocks[mb_x + mb_y * mi_ctx->b_width]; |
| |
| const int x_mb = mb_x << mi_ctx->log2_mb_size; |
| const int y_mb = mb_y << mi_ctx->log2_mb_size; |
| const int mb_i = mb_x + mb_y * mi_ctx->b_width; |
| int mv[2] = {x_mb, y_mb}; |
| |
| switch (mi_ctx->me_method) { |
| case AV_ME_METHOD_ESA: |
| ff_me_search_esa(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_TSS: |
| ff_me_search_tss(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_TDLS: |
| ff_me_search_tdls(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_NTSS: |
| ff_me_search_ntss(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_FSS: |
| ff_me_search_fss(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_DS: |
| ff_me_search_ds(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_HEXBS: |
| ff_me_search_hexbs(me_ctx, x_mb, y_mb, mv); |
| break; |
| case AV_ME_METHOD_EPZS: |
| |
| preds[0].nb = 0; |
| preds[1].nb = 0; |
| |
| ADD_PRED(preds[0], 0, 0); |
| |
| //left mb in current frame |
| if (mb_x > 0) |
| ADD_PRED(preds[0], mi_ctx->mv_table[0][mb_i - 1][dir][0], mi_ctx->mv_table[0][mb_i - 1][dir][1]); |
| |
| //top mb in current frame |
| if (mb_y > 0) |
| 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]); |
| |
| //top-right mb in current frame |
| if (mb_y > 0 && mb_x + 1 < mi_ctx->b_width) |
| 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]); |
| |
| //median predictor |
| if (preds[0].nb == 4) { |
| me_ctx->pred_x = mid_pred(preds[0].mvs[1][0], preds[0].mvs[2][0], preds[0].mvs[3][0]); |
| me_ctx->pred_y = mid_pred(preds[0].mvs[1][1], preds[0].mvs[2][1], preds[0].mvs[3][1]); |
| } else if (preds[0].nb == 3) { |
| me_ctx->pred_x = mid_pred(0, preds[0].mvs[1][0], preds[0].mvs[2][0]); |
| me_ctx->pred_y = mid_pred(0, preds[0].mvs[1][1], preds[0].mvs[2][1]); |
| } else if (preds[0].nb == 2) { |
| me_ctx->pred_x = preds[0].mvs[1][0]; |
| me_ctx->pred_y = preds[0].mvs[1][1]; |
| } else { |
| me_ctx->pred_x = 0; |
| me_ctx->pred_y = 0; |
| } |
| |
| //collocated mb in prev frame |
| ADD_PRED(preds[0], mi_ctx->mv_table[1][mb_i][dir][0], mi_ctx->mv_table[1][mb_i][dir][1]); |
| |
| //accelerator motion vector of collocated block in prev frame |
| 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]), |
| 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])); |
| |
| //left mb in prev frame |
| if (mb_x > 0) |
| ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i - 1][dir][0], mi_ctx->mv_table[1][mb_i - 1][dir][1]); |
| |
| //top mb in prev frame |
| if (mb_y > 0) |
| 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]); |
| |
| //right mb in prev frame |
| if (mb_x + 1 < mi_ctx->b_width) |
| ADD_PRED(preds[1], mi_ctx->mv_table[1][mb_i + 1][dir][0], mi_ctx->mv_table[1][mb_i + 1][dir][1]); |
| |
| //bottom mb in prev frame |
| if (mb_y + 1 < mi_ctx->b_height) |
| 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]); |
| |
| ff_me_search_epzs(me_ctx, x_mb, y_mb, mv); |
| |
| mi_ctx->mv_table[0][mb_i][dir][0] = mv[0] - x_mb; |
| mi_ctx->mv_table[0][mb_i][dir][1] = mv[1] - y_mb; |
| |
| break; |
| case AV_ME_METHOD_UMH: |
| |
| preds[0].nb = 0; |
| |
| ADD_PRED(preds[0], 0, 0); |
| |
| //left mb in current frame |
| if (mb_x > 0) |
| ADD_PRED(preds[0], blocks[mb_i - 1].mvs[dir][0], blocks[mb_i - 1].mvs[dir][1]); |
| |
| if (mb_y > 0) { |
| //top mb in current frame |
| ADD_PRED(preds[0], blocks[mb_i - mi_ctx->b_width].mvs[dir][0], blocks[mb_i - mi_ctx->b_width].mvs[dir][1]); |
| |
| //top-right mb in current frame |
| if (mb_x + 1 < mi_ctx->b_width) |
| 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]); |
| //top-left mb in current frame |
| else if (mb_x > 0) |
| 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]); |
| } |
| |
| //median predictor |
| if (preds[0].nb == 4) { |
| me_ctx->pred_x = mid_pred(preds[0].mvs[1][0], preds[0].mvs[2][0], preds[0].mvs[3][0]); |
| me_ctx->pred_y = mid_pred(preds[0].mvs[1][1], preds[0].mvs[2][1], preds[0].mvs[3][1]); |
| } else if (preds[0].nb == 3) { |
| me_ctx->pred_x = mid_pred(0, preds[0].mvs[1][0], preds[0].mvs[2][0]); |
| me_ctx->pred_y = mid_pred(0, preds[0].mvs[1][1], preds[0].mvs[2][1]); |
| } else if (preds[0].nb == 2) { |
| me_ctx->pred_x = preds[0].mvs[1][0]; |
| me_ctx->pred_y = preds[0].mvs[1][1]; |
| } else { |
| me_ctx->pred_x = 0; |
| me_ctx->pred_y = 0; |
| } |
| |
| ff_me_search_umh(me_ctx, x_mb, y_mb, mv); |
| |
| break; |
| } |
| |
| block->mvs[dir][0] = mv[0] - x_mb; |
| block->mvs[dir][1] = mv[1] - y_mb; |
| } |
| |
| static void bilateral_me(MIContext *mi_ctx) |
| { |
| Block *block; |
| int mb_x, mb_y; |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| |
| block->cid = 0; |
| block->sb = 0; |
| |
| block->mvs[0][0] = 0; |
| block->mvs[0][1] = 0; |
| } |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) |
| search_mv(mi_ctx, mi_ctx->int_blocks, mb_x, mb_y, 0); |
| } |
| |
| static int var_size_bme(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n) |
| { |
| AVMotionEstContext *me_ctx = &mi_ctx->me_ctx; |
| uint64_t cost_sb, cost_old; |
| int mb_size = me_ctx->mb_size; |
| int search_param = me_ctx->search_param; |
| int mv_x, mv_y; |
| int x, y; |
| int ret; |
| |
| me_ctx->mb_size = 1 << n; |
| cost_old = me_ctx->get_cost(me_ctx, x_mb, y_mb, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]); |
| me_ctx->mb_size = mb_size; |
| |
| if (!cost_old) { |
| block->sb = 0; |
| return 0; |
| } |
| |
| if (!block->subs) { |
| block->subs = av_mallocz_array(4, sizeof(Block)); |
| if (!block->subs) |
| return AVERROR(ENOMEM); |
| } |
| |
| block->sb = 1; |
| |
| for (y = 0; y < 2; y++) |
| for (x = 0; x < 2; x++) { |
| Block *sb = &block->subs[x + y * 2]; |
| int mv[2] = {x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]}; |
| |
| me_ctx->mb_size = 1 << (n - 1); |
| me_ctx->search_param = 2; |
| me_ctx->pred_x = block->mvs[0][0]; |
| me_ctx->pred_y = block->mvs[0][1]; |
| |
| cost_sb = ff_me_search_ds(&mi_ctx->me_ctx, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1], mv); |
| mv_x = mv[0] - x_mb; |
| mv_y = mv[1] - y_mb; |
| |
| me_ctx->mb_size = mb_size; |
| me_ctx->search_param = search_param; |
| |
| if (cost_sb < cost_old / 4) { |
| sb->mvs[0][0] = mv_x; |
| sb->mvs[0][1] = mv_y; |
| |
| if (n > 1) { |
| if (ret = var_size_bme(mi_ctx, sb, x_mb + (x << (n - 1)), y_mb + (y << (n - 1)), n - 1)) |
| return ret; |
| } else |
| sb->sb = 0; |
| } else { |
| block->sb = 0; |
| return 0; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int cluster_mvs(MIContext *mi_ctx) |
| { |
| int changed, c, c_max = 0; |
| int mb_x, mb_y, x, y; |
| int mv_x, mv_y, avg_x, avg_y, dx, dy; |
| int d, ret; |
| Block *block; |
| Cluster *cluster, *cluster_new; |
| |
| do { |
| changed = 0; |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| c = block->cid; |
| cluster = &mi_ctx->clusters[c]; |
| mv_x = block->mvs[0][0]; |
| mv_y = block->mvs[0][1]; |
| |
| if (cluster->nb < 2) |
| continue; |
| |
| avg_x = cluster->sum[0] / cluster->nb; |
| avg_y = cluster->sum[1] / cluster->nb; |
| dx = avg_x - mv_x; |
| dy = avg_y - mv_y; |
| |
| if (FFABS(dx) > CLUSTER_THRESHOLD || FFABS(dy) > CLUSTER_THRESHOLD) { |
| |
| for (d = 1; d < 5; d++) |
| for (y = FFMAX(mb_y - d, 0); y < FFMIN(mb_y + d + 1, mi_ctx->b_height); y++) |
| for (x = FFMAX(mb_x - d, 0); x < FFMIN(mb_x + d + 1, mi_ctx->b_width); x++) { |
| Block *nb = &mi_ctx->int_blocks[x + y * mi_ctx->b_width]; |
| if (nb->cid > block->cid) { |
| if (nb->cid < c || c == block->cid) |
| c = nb->cid; |
| } |
| } |
| |
| if (c == block->cid) |
| c = c_max + 1; |
| |
| if (c >= NB_CLUSTERS) { |
| continue; |
| } |
| |
| cluster_new = &mi_ctx->clusters[c]; |
| cluster_new->sum[0] += mv_x; |
| cluster_new->sum[1] += mv_y; |
| cluster->sum[0] -= mv_x; |
| cluster->sum[1] -= mv_y; |
| cluster_new->nb++; |
| cluster->nb--; |
| |
| c_max = FFMAX(c_max, c); |
| block->cid = c; |
| |
| changed = 1; |
| } |
| } |
| } while (changed); |
| |
| /* find boundaries */ |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| for (y = FFMAX(mb_y - 1, 0); y < FFMIN(mb_y + 2, mi_ctx->b_height); y++) |
| for (x = FFMAX(mb_x - 1, 0); x < FFMIN(mb_x + 2, mi_ctx->b_width); x++) { |
| dx = x - mb_x; |
| dy = y - mb_y; |
| |
| if ((x - mb_x) && (y - mb_y) || !dx && !dy) |
| continue; |
| |
| if (!mb_x || !mb_y || mb_x == mi_ctx->b_width - 1 || mb_y == mi_ctx->b_height - 1) |
| continue; |
| |
| if (block->cid != mi_ctx->int_blocks[x + y * mi_ctx->b_width].cid) { |
| if (!dx && block->cid == mi_ctx->int_blocks[x + (mb_y - dy) * mi_ctx->b_width].cid || |
| !dy && block->cid == mi_ctx->int_blocks[(mb_x - dx) + y * mi_ctx->b_width].cid) { |
| 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)) |
| return ret; |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int inject_frame(AVFilterLink *inlink, AVFrame *avf_in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| MIContext *mi_ctx = ctx->priv; |
| Frame frame_tmp; |
| int mb_x, mb_y, dir; |
| |
| av_frame_free(&mi_ctx->frames[0].avf); |
| frame_tmp = mi_ctx->frames[0]; |
| memmove(&mi_ctx->frames[0], &mi_ctx->frames[1], sizeof(mi_ctx->frames[0]) * (NB_FRAMES - 1)); |
| mi_ctx->frames[NB_FRAMES - 1] = frame_tmp; |
| mi_ctx->frames[NB_FRAMES - 1].avf = avf_in; |
| |
| if (mi_ctx->mi_mode == MI_MODE_MCI) { |
| |
| if (mi_ctx->me_method == AV_ME_METHOD_EPZS) { |
| 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); |
| 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); |
| } |
| |
| if (mi_ctx->me_mode == ME_MODE_BIDIR) { |
| |
| if (mi_ctx->frames[1].avf) { |
| for (dir = 0; dir < 2; dir++) { |
| mi_ctx->me_ctx.linesize = mi_ctx->frames[2].avf->linesize[0]; |
| mi_ctx->me_ctx.data_cur = mi_ctx->frames[2].avf->data[0]; |
| mi_ctx->me_ctx.data_ref = mi_ctx->frames[dir ? 3 : 1].avf->data[0]; |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) |
| search_mv(mi_ctx, mi_ctx->frames[2].blocks, mb_x, mb_y, dir); |
| } |
| } |
| |
| } else if (mi_ctx->me_mode == ME_MODE_BILAT) { |
| Block *block; |
| int i, ret; |
| |
| if (!mi_ctx->frames[0].avf) |
| return 0; |
| |
| mi_ctx->me_ctx.linesize = mi_ctx->frames[0].avf->linesize[0]; |
| mi_ctx->me_ctx.data_cur = mi_ctx->frames[1].avf->data[0]; |
| mi_ctx->me_ctx.data_ref = mi_ctx->frames[2].avf->data[0]; |
| |
| bilateral_me(mi_ctx); |
| |
| if (mi_ctx->mc_mode == MC_MODE_AOBMC) { |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| int x_mb = mb_x << mi_ctx->log2_mb_size; |
| int y_mb = mb_y << mi_ctx->log2_mb_size; |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| |
| block->sbad = get_sbad(&mi_ctx->me_ctx, x_mb, y_mb, x_mb + block->mvs[0][0], y_mb + block->mvs[0][1]); |
| } |
| } |
| |
| if (mi_ctx->vsbmc) { |
| |
| for (i = 0; i < NB_CLUSTERS; i++) { |
| mi_ctx->clusters[i].sum[0] = 0; |
| mi_ctx->clusters[i].sum[1] = 0; |
| mi_ctx->clusters[i].nb = 0; |
| } |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| |
| mi_ctx->clusters[0].sum[0] += block->mvs[0][0]; |
| mi_ctx->clusters[0].sum[1] += block->mvs[0][1]; |
| } |
| |
| mi_ctx->clusters[0].nb = mi_ctx->b_count; |
| |
| if (ret = cluster_mvs(mi_ctx)) |
| return ret; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int detect_scene_change(MIContext *mi_ctx) |
| { |
| AVMotionEstContext *me_ctx = &mi_ctx->me_ctx; |
| int x, y; |
| int linesize = me_ctx->linesize; |
| uint8_t *p1 = mi_ctx->frames[1].avf->data[0]; |
| uint8_t *p2 = mi_ctx->frames[2].avf->data[0]; |
| |
| if (mi_ctx->scd_method == SCD_METHOD_FDIFF) { |
| double ret = 0, mafd, diff; |
| int64_t sad; |
| |
| for (sad = y = 0; y < me_ctx->height; y += 8) |
| for (x = 0; x < linesize; x += 8) |
| sad += mi_ctx->sad(p1 + x + y * linesize, linesize, p2 + x + y * linesize, linesize); |
| |
| emms_c(); |
| mafd = (double) sad / (me_ctx->height * me_ctx->width * 3); |
| diff = fabs(mafd - mi_ctx->prev_mafd); |
| ret = av_clipf(FFMIN(mafd, diff), 0, 100.0); |
| mi_ctx->prev_mafd = mafd; |
| |
| return ret >= mi_ctx->scd_threshold; |
| } |
| |
| return 0; |
| } |
| |
| #define ADD_PIXELS(b_weight, mv_x, mv_y)\ |
| do {\ |
| if (!b_weight || pixel->nb + 1 >= NB_PIXEL_MVS)\ |
| continue;\ |
| pixel->refs[pixel->nb] = 1;\ |
| pixel->weights[pixel->nb] = b_weight * (ALPHA_MAX - alpha);\ |
| pixel->mvs[pixel->nb][0] = av_clip((mv_x * alpha) / ALPHA_MAX, x_min, x_max);\ |
| pixel->mvs[pixel->nb][1] = av_clip((mv_y * alpha) / ALPHA_MAX, y_min, y_max);\ |
| pixel->nb++;\ |
| pixel->refs[pixel->nb] = 2;\ |
| pixel->weights[pixel->nb] = b_weight * alpha;\ |
| pixel->mvs[pixel->nb][0] = av_clip(-mv_x * (ALPHA_MAX - alpha) / ALPHA_MAX, x_min, x_max);\ |
| pixel->mvs[pixel->nb][1] = av_clip(-mv_y * (ALPHA_MAX - alpha) / ALPHA_MAX, y_min, y_max);\ |
| pixel->nb++;\ |
| } while(0) |
| |
| static void bidirectional_obmc(MIContext *mi_ctx, int alpha) |
| { |
| int x, y; |
| int width = mi_ctx->frames[0].avf->width; |
| int height = mi_ctx->frames[0].avf->height; |
| int mb_y, mb_x, dir; |
| |
| for (y = 0; y < height; y++) |
| for (x = 0; x < width; x++) |
| mi_ctx->pixels[x + y * width].nb = 0; |
| |
| for (dir = 0; dir < 2; dir++) |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| int a = dir ? alpha : (ALPHA_MAX - alpha); |
| int mv_x = mi_ctx->frames[2 - dir].blocks[mb_x + mb_y * mi_ctx->b_width].mvs[dir][0]; |
| int mv_y = mi_ctx->frames[2 - dir].blocks[mb_x + mb_y * mi_ctx->b_width].mvs[dir][1]; |
| int start_x, start_y; |
| int startc_x, startc_y, endc_x, endc_y; |
| |
| start_x = (mb_x << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2 + mv_x * a / ALPHA_MAX; |
| start_y = (mb_y << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2 + mv_y * a / ALPHA_MAX; |
| |
| startc_x = av_clip(start_x, 0, width - 1); |
| startc_y = av_clip(start_y, 0, height - 1); |
| endc_x = av_clip(start_x + (2 << mi_ctx->log2_mb_size), 0, width - 1); |
| endc_y = av_clip(start_y + (2 << mi_ctx->log2_mb_size), 0, height - 1); |
| |
| if (dir) { |
| mv_x = -mv_x; |
| mv_y = -mv_y; |
| } |
| |
| for (y = startc_y; y < endc_y; y++) { |
| int y_min = -y; |
| int y_max = height - y - 1; |
| for (x = startc_x; x < endc_x; x++) { |
| int x_min = -x; |
| int x_max = width - x - 1; |
| int obmc_weight = obmc_tab_linear[4 - mi_ctx->log2_mb_size][(x - start_x) + ((y - start_y) << (mi_ctx->log2_mb_size + 1))]; |
| Pixel *pixel = &mi_ctx->pixels[x + y * width]; |
| |
| ADD_PIXELS(obmc_weight, mv_x, mv_y); |
| } |
| } |
| } |
| } |
| |
| static void set_frame_data(MIContext *mi_ctx, int alpha, AVFrame *avf_out) |
| { |
| int x, y, plane; |
| |
| for (plane = 0; plane < mi_ctx->nb_planes; plane++) { |
| int width = avf_out->width; |
| int height = avf_out->height; |
| int chroma = plane == 1 || plane == 2; |
| |
| for (y = 0; y < height; y++) |
| for (x = 0; x < width; x++) { |
| int x_mv, y_mv; |
| int weight_sum = 0; |
| int i, val = 0; |
| Pixel *pixel = &mi_ctx->pixels[x + y * avf_out->width]; |
| |
| for (i = 0; i < pixel->nb; i++) |
| weight_sum += pixel->weights[i]; |
| |
| if (!weight_sum || !pixel->nb) { |
| pixel->weights[0] = ALPHA_MAX - alpha; |
| pixel->refs[0] = 1; |
| pixel->mvs[0][0] = 0; |
| pixel->mvs[0][1] = 0; |
| pixel->weights[1] = alpha; |
| pixel->refs[1] = 2; |
| pixel->mvs[1][0] = 0; |
| pixel->mvs[1][1] = 0; |
| pixel->nb = 2; |
| |
| weight_sum = ALPHA_MAX; |
| } |
| |
| for (i = 0; i < pixel->nb; i++) { |
| Frame *frame = &mi_ctx->frames[pixel->refs[i]]; |
| if (chroma) { |
| x_mv = (x >> mi_ctx->log2_chroma_w) + pixel->mvs[i][0] / (1 << mi_ctx->log2_chroma_w); |
| y_mv = (y >> mi_ctx->log2_chroma_h) + pixel->mvs[i][1] / (1 << mi_ctx->log2_chroma_h); |
| } else { |
| x_mv = x + pixel->mvs[i][0]; |
| y_mv = y + pixel->mvs[i][1]; |
| } |
| |
| val += pixel->weights[i] * frame->avf->data[plane][x_mv + y_mv * frame->avf->linesize[plane]]; |
| } |
| |
| val = ROUNDED_DIV(val, weight_sum); |
| |
| if (chroma) |
| avf_out->data[plane][(x >> mi_ctx->log2_chroma_w) + (y >> mi_ctx->log2_chroma_h) * avf_out->linesize[plane]] = val; |
| else |
| avf_out->data[plane][x + y * avf_out->linesize[plane]] = val; |
| } |
| } |
| } |
| |
| static void var_size_bmc(MIContext *mi_ctx, Block *block, int x_mb, int y_mb, int n, int alpha) |
| { |
| int sb_x, sb_y; |
| int width = mi_ctx->frames[0].avf->width; |
| int height = mi_ctx->frames[0].avf->height; |
| |
| for (sb_y = 0; sb_y < 2; sb_y++) |
| for (sb_x = 0; sb_x < 2; sb_x++) { |
| Block *sb = &block->subs[sb_x + sb_y * 2]; |
| |
| if (sb->sb) |
| var_size_bmc(mi_ctx, sb, x_mb + (sb_x << (n - 1)), y_mb + (sb_y << (n - 1)), n - 1, alpha); |
| else { |
| int x, y; |
| int mv_x = sb->mvs[0][0] * 2; |
| int mv_y = sb->mvs[0][1] * 2; |
| |
| int start_x = x_mb + (sb_x << (n - 1)); |
| int start_y = y_mb + (sb_y << (n - 1)); |
| int end_x = start_x + (1 << (n - 1)); |
| int end_y = start_y + (1 << (n - 1)); |
| |
| for (y = start_y; y < end_y; y++) { |
| int y_min = -y; |
| int y_max = height - y - 1; |
| for (x = start_x; x < end_x; x++) { |
| int x_min = -x; |
| int x_max = width - x - 1; |
| Pixel *pixel = &mi_ctx->pixels[x + y * width]; |
| |
| ADD_PIXELS(PX_WEIGHT_MAX, mv_x, mv_y); |
| } |
| } |
| } |
| } |
| } |
| |
| static void bilateral_obmc(MIContext *mi_ctx, Block *block, int mb_x, int mb_y, int alpha) |
| { |
| int x, y; |
| int width = mi_ctx->frames[0].avf->width; |
| int height = mi_ctx->frames[0].avf->height; |
| |
| Block *nb; |
| int nb_x, nb_y; |
| uint64_t sbads[9]; |
| |
| int mv_x = block->mvs[0][0] * 2; |
| int mv_y = block->mvs[0][1] * 2; |
| int start_x, start_y; |
| int startc_x, startc_y, endc_x, endc_y; |
| |
| if (mi_ctx->mc_mode == MC_MODE_AOBMC) |
| for (nb_y = FFMAX(0, mb_y - 1); nb_y < FFMIN(mb_y + 2, mi_ctx->b_height); nb_y++) |
| for (nb_x = FFMAX(0, mb_x - 1); nb_x < FFMIN(mb_x + 2, mi_ctx->b_width); nb_x++) { |
| int x_nb = nb_x << mi_ctx->log2_mb_size; |
| int y_nb = nb_y << mi_ctx->log2_mb_size; |
| |
| if (nb_x - mb_x || nb_y - mb_y) |
| 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]); |
| } |
| |
| start_x = (mb_x << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2; |
| start_y = (mb_y << mi_ctx->log2_mb_size) - mi_ctx->mb_size / 2; |
| |
| startc_x = av_clip(start_x, 0, width - 1); |
| startc_y = av_clip(start_y, 0, height - 1); |
| endc_x = av_clip(start_x + (2 << mi_ctx->log2_mb_size), 0, width - 1); |
| endc_y = av_clip(start_y + (2 << mi_ctx->log2_mb_size), 0, height - 1); |
| |
| for (y = startc_y; y < endc_y; y++) { |
| int y_min = -y; |
| int y_max = height - y - 1; |
| for (x = startc_x; x < endc_x; x++) { |
| int x_min = -x; |
| int x_max = width - x - 1; |
| int obmc_weight = obmc_tab_linear[4 - mi_ctx->log2_mb_size][(x - start_x) + ((y - start_y) << (mi_ctx->log2_mb_size + 1))]; |
| Pixel *pixel = &mi_ctx->pixels[x + y * width]; |
| |
| if (mi_ctx->mc_mode == MC_MODE_AOBMC) { |
| nb_x = (((x - start_x) >> (mi_ctx->log2_mb_size - 1)) * 2 - 3) / 2; |
| nb_y = (((y - start_y) >> (mi_ctx->log2_mb_size - 1)) * 2 - 3) / 2; |
| |
| if (nb_x || nb_y) { |
| uint64_t sbad = sbads[nb_x + 1 + (nb_y + 1) * 3]; |
| nb = &mi_ctx->int_blocks[mb_x + nb_x + (mb_y + nb_y) * mi_ctx->b_width]; |
| |
| if (sbad && sbad != UINT64_MAX && nb->sbad != UINT64_MAX) { |
| int phi = av_clip(ALPHA_MAX * nb->sbad / sbad, 0, ALPHA_MAX); |
| obmc_weight = obmc_weight * phi / ALPHA_MAX; |
| } |
| } |
| } |
| |
| ADD_PIXELS(obmc_weight, mv_x, mv_y); |
| } |
| } |
| } |
| |
| static void interpolate(AVFilterLink *inlink, AVFrame *avf_out) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| MIContext *mi_ctx = ctx->priv; |
| int x, y; |
| int plane, alpha; |
| int64_t pts; |
| |
| pts = av_rescale(avf_out->pts, (int64_t) ALPHA_MAX * outlink->time_base.num * inlink->time_base.den, |
| (int64_t) outlink->time_base.den * inlink->time_base.num); |
| |
| alpha = (pts - mi_ctx->frames[1].avf->pts * ALPHA_MAX) / (mi_ctx->frames[2].avf->pts - mi_ctx->frames[1].avf->pts); |
| alpha = av_clip(alpha, 0, ALPHA_MAX); |
| |
| if (alpha == 0 || alpha == ALPHA_MAX) { |
| av_frame_copy(avf_out, alpha ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf); |
| return; |
| } |
| |
| if (mi_ctx->scene_changed) { |
| /* duplicate frame */ |
| av_frame_copy(avf_out, alpha > ALPHA_MAX / 2 ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf); |
| return; |
| } |
| |
| switch(mi_ctx->mi_mode) { |
| case MI_MODE_DUP: |
| av_frame_copy(avf_out, alpha > ALPHA_MAX / 2 ? mi_ctx->frames[2].avf : mi_ctx->frames[1].avf); |
| |
| break; |
| case MI_MODE_BLEND: |
| for (plane = 0; plane < mi_ctx->nb_planes; plane++) { |
| int width = avf_out->width; |
| int height = avf_out->height; |
| |
| if (plane == 1 || plane == 2) { |
| width = AV_CEIL_RSHIFT(width, mi_ctx->log2_chroma_w); |
| height = AV_CEIL_RSHIFT(height, mi_ctx->log2_chroma_h); |
| } |
| |
| for (y = 0; y < height; y++) { |
| for (x = 0; x < width; x++) { |
| avf_out->data[plane][x + y * avf_out->linesize[plane]] = |
| alpha * mi_ctx->frames[2].avf->data[plane][x + y * mi_ctx->frames[2].avf->linesize[plane]] + |
| ((ALPHA_MAX - alpha) * mi_ctx->frames[1].avf->data[plane][x + y * mi_ctx->frames[1].avf->linesize[plane]] + 512) >> 10; |
| } |
| } |
| } |
| |
| break; |
| case MI_MODE_MCI: |
| if (mi_ctx->me_mode == ME_MODE_BIDIR) { |
| bidirectional_obmc(mi_ctx, alpha); |
| set_frame_data(mi_ctx, alpha, avf_out); |
| |
| } else if (mi_ctx->me_mode == ME_MODE_BILAT) { |
| int mb_x, mb_y; |
| Block *block; |
| |
| for (y = 0; y < mi_ctx->frames[0].avf->height; y++) |
| for (x = 0; x < mi_ctx->frames[0].avf->width; x++) |
| mi_ctx->pixels[x + y * mi_ctx->frames[0].avf->width].nb = 0; |
| |
| for (mb_y = 0; mb_y < mi_ctx->b_height; mb_y++) |
| for (mb_x = 0; mb_x < mi_ctx->b_width; mb_x++) { |
| block = &mi_ctx->int_blocks[mb_x + mb_y * mi_ctx->b_width]; |
| |
| if (block->sb) |
| 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); |
| |
| bilateral_obmc(mi_ctx, block, mb_x, mb_y, alpha); |
| |
| } |
| |
| set_frame_data(mi_ctx, alpha, avf_out); |
| } |
| |
| break; |
| } |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *avf_in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| MIContext *mi_ctx = ctx->priv; |
| int ret; |
| |
| if (avf_in->pts == AV_NOPTS_VALUE) { |
| ret = ff_filter_frame(ctx->outputs[0], avf_in); |
| return ret; |
| } |
| |
| if (!mi_ctx->frames[NB_FRAMES - 1].avf || avf_in->pts < mi_ctx->frames[NB_FRAMES - 1].avf->pts) { |
| av_log(ctx, AV_LOG_VERBOSE, "Initializing out pts from input pts %"PRId64"\n", avf_in->pts); |
| mi_ctx->out_pts = av_rescale_q(avf_in->pts, inlink->time_base, outlink->time_base); |
| } |
| |
| if (!mi_ctx->frames[NB_FRAMES - 1].avf) |
| if (ret = inject_frame(inlink, av_frame_clone(avf_in))) |
| return ret; |
| |
| if (ret = inject_frame(inlink, avf_in)) |
| return ret; |
| |
| if (!mi_ctx->frames[0].avf) |
| return 0; |
| |
| mi_ctx->scene_changed = detect_scene_change(mi_ctx); |
| |
| for (;;) { |
| AVFrame *avf_out; |
| |
| if (av_compare_ts(mi_ctx->out_pts, outlink->time_base, mi_ctx->frames[2].avf->pts, inlink->time_base) > 0) |
| break; |
| |
| if (!(avf_out = ff_get_video_buffer(ctx->outputs[0], inlink->w, inlink->h))) |
| return AVERROR(ENOMEM); |
| |
| av_frame_copy_props(avf_out, mi_ctx->frames[NB_FRAMES - 1].avf); |
| avf_out->pts = mi_ctx->out_pts++; |
| |
| interpolate(inlink, avf_out); |
| |
| if ((ret = ff_filter_frame(ctx->outputs[0], avf_out)) < 0) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static av_cold void free_blocks(Block *block, int sb) |
| { |
| if (block->subs) |
| free_blocks(block->subs, 1); |
| if (sb) |
| av_freep(&block); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| MIContext *mi_ctx = ctx->priv; |
| int i, m; |
| |
| av_freep(&mi_ctx->pixels); |
| if (mi_ctx->int_blocks) |
| for (m = 0; m < mi_ctx->b_count; m++) |
| free_blocks(&mi_ctx->int_blocks[m], 0); |
| av_freep(&mi_ctx->int_blocks); |
| |
| for (i = 0; i < NB_FRAMES; i++) { |
| Frame *frame = &mi_ctx->frames[i]; |
| av_freep(&frame->blocks); |
| av_frame_free(&frame->avf); |
| } |
| |
| for (i = 0; i < 3; i++) |
| av_freep(&mi_ctx->mv_table[i]); |
| } |
| |
| static const AVFilterPad minterpolate_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| .config_props = config_input, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad minterpolate_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_minterpolate = { |
| .name = "minterpolate", |
| .description = NULL_IF_CONFIG_SMALL("Frame rate conversion using Motion Interpolation."), |
| .priv_size = sizeof(MIContext), |
| .priv_class = &minterpolate_class, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = minterpolate_inputs, |
| .outputs = minterpolate_outputs, |
| }; |
