git.sesse.net Git - mlt/blob - src/modules/vid.stab/filter_deshake.cpp

   1 /*
   2  * filter_deshake.cpp
   3  * Copyright (C) 2013
   4  * Marco Gittler <g.marco@freenet.de>
   5  * Jakub Ksiezniak <j.ksiezniak@gmail.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program 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
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software Foundation,
  19  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 extern "C"
  23 {
  24 #include <vid.stab/libvidstab.h>
  25 }
  26
  27 #include <framework/mlt.h>
  28 #include <string.h>
  29 #include <assert.h>
  30 #include "common.h"
  31
  32 #define FILTER_NAME "vid.stab.deshake"
  33
  34 typedef struct _deshake_data
  35 {
  36         bool initialized;
  37         VSMotionDetect md;
  38         VSTransformData td;
  39         VSSlidingAvgTrans avg;
  40
  41         mlt_position lastFrame;
  42 } DeshakeData;
  43
  44 int init_deshake(DeshakeData *data, mlt_properties properties,
  45                 mlt_image_format *format, int *width, int *height, char* interps)
  46 {
  47         VSPixelFormat pf = convertImageFormat(*format);
  48         VSFrameInfo fiIn, fiOut;
  49         vsFrameInfoInit(&fiIn, *width, *height, pf);
  50         vsFrameInfoInit(&fiOut, *width, *height, pf);
  51
  52         VSMotionDetectConfig conf = vsMotionDetectGetDefaultConfig(FILTER_NAME);
  53         conf.shakiness = mlt_properties_get_int(properties, "shakiness");
  54         conf.accuracy = mlt_properties_get_int(properties, "accuracy");
  55         conf.stepSize = mlt_properties_get_int(properties, "stepsize");
  56         conf.algo = mlt_properties_get_int(properties, "algo");
  57         conf.contrastThreshold = mlt_properties_get_double(properties, "mincontrast");
  58         conf.show = 0;
  59
  60         vsMotionDetectInit(&data->md, &conf, &fiIn);
  61
  62         VSTransformConfig tdconf = vsTransformGetDefaultConfig(FILTER_NAME);
  63         tdconf.smoothing = mlt_properties_get_int(properties, "smoothing");
  64         tdconf.maxShift = mlt_properties_get_int(properties, "maxshift");
  65         tdconf.maxAngle = mlt_properties_get_double(properties, "maxangle");
  66         tdconf.crop = (VSBorderType) mlt_properties_get_int(properties, "crop");
  67         tdconf.zoom = mlt_properties_get_int(properties, "zoom");
  68         tdconf.optZoom = mlt_properties_get_int(properties, "optzoom");
  69         tdconf.zoomSpeed = mlt_properties_get_double(properties, "zoomspeed");
  70         tdconf.relative = 1;
  71         tdconf.invert = 0;
  72
  73         // by default a bilinear interpolation is selected
  74         tdconf.interpolType = VS_BiLinear;
  75         if (strcmp(interps, "nearest") == 0 || strcmp(interps, "neighbor") == 0)
  76                 tdconf.interpolType = VS_Zero;
  77         else if (strcmp(interps, "tiles") == 0 || strcmp(interps, "fast_bilinear") == 0)
  78                 tdconf.interpolType = VS_Linear;
  79
  80         vsTransformDataInit(&data->td, &tdconf, &fiIn, &fiOut);
  81
  82         data->avg.initialized = 0;
  83         return 0;
  84 }
  85
  86 void clear_deshake(DeshakeData *data)
  87 {
  88         if (data->initialized)
  89         {
  90                 vsMotionDetectionCleanup(&data->md);
  91                 vsTransformDataCleanup(&data->td);
  92         }
  93 }
  94
  95 static int get_image(mlt_frame frame, uint8_t **image, mlt_image_format *format,
  96                 int *width, int *height, int writable)
  97 {
  98         mlt_filter filter = (mlt_filter) mlt_frame_pop_service(frame);
  99         mlt_properties properties = MLT_FILTER_PROPERTIES(filter);
 100
 101         *format = mlt_image_yuv420p;
 102         DeshakeData *data = static_cast<DeshakeData*>(filter->child);
 103
 104         int error = mlt_frame_get_image(frame, image, format, width, height, 1);
 105         if (!error)
 106         {
 107                 // Service locks are for concurrency control
 108                 mlt_service_lock(MLT_FILTER_SERVICE(filter));
 109
 110                 // Handle signal from app to re-init data
 111                 if (mlt_properties_get_int(properties, "refresh"))
 112                 {
 113                         mlt_properties_set(properties, "refresh", NULL);
 114                         clear_deshake(data);
 115                         data->initialized = false;
 116                 }
 117
 118                 // clear deshake data, when seeking or dropping frames
 119                 mlt_position pos = mlt_filter_get_position(filter, frame);
 120                 if(pos != data->lastFrame+1) {
 121                         clear_deshake(data);
 122                         data->initialized = false;
 123                 }
 124                 data->lastFrame = pos;
 125
 126                 if (!data->initialized)
 127                 {
 128                         char *interps = mlt_properties_get(MLT_FRAME_PROPERTIES(frame), "rescale.interp");
 129                         init_deshake(data, properties, format, width, height,
 130                                         interps);
 131                         data->initialized = true;
 132                 }
 133
 134                 VSMotionDetect* md = &data->md;
 135                 VSTransformData* td = &data->td;
 136                 LocalMotions localmotions;
 137                 VSTransform motion;
 138                 VSFrame vsFrame;
 139
 140                 vsFrameFillFromBuffer(&vsFrame, *image, &md->fi);
 141                 vsMotionDetection(md, &localmotions, &vsFrame);
 142
 143                 motion = vsSimpleMotionsToTransform(md->fi, FILTER_NAME, &localmotions);
 144                 vs_vector_del(&localmotions);
 145
 146                 vsTransformPrepare(td, &vsFrame, &vsFrame);
 147
 148                 VSTransform t = vsLowPassTransforms(td, &data->avg, &motion);
 149 //          mlt_log_warning(filter, "Trans: det: %f %f %f \n\t\t act: %f %f %f %f",
 150 //                       motion.x, motion.y, motion.alpha,
 151 //                       t.x, t.y, t.alpha, t.zoom);
 152                 vsDoTransform(td, t);
 153                 vsTransformFinish(td);
 154
 155                 mlt_service_unlock(MLT_FILTER_SERVICE(filter));
 156         }
 157
 158         return error;
 159 }
 160
 161 static mlt_frame process_filter(mlt_filter filter, mlt_frame frame)
 162 {
 163         mlt_frame_push_service(frame, filter);
 164         mlt_frame_push_get_image(frame, get_image);
 165         return frame;
 166 }
 167
 168 static void close_filter(mlt_filter filter)
 169 {
 170         DeshakeData *data = static_cast<DeshakeData*>(filter->child);
 171         if (data)
 172         {
 173                 clear_deshake(data);
 174                 delete data;
 175                 filter->child = NULL;
 176         }
 177 }
 178
 179 extern "C"
 180 {
 181
 182 mlt_filter filter_deshake_init(mlt_profile profile, mlt_service_type type,
 183                 const char *id, char *arg)
 184 {
 185         mlt_filter filter = NULL;
 186
 187         DeshakeData *data = new DeshakeData;
 188         memset(data, 0, sizeof(DeshakeData));
 189
 190         if ((filter = mlt_filter_new()))
 191         {
 192                 filter->process = process_filter;
 193                 filter->close = close_filter;
 194                 filter->child = data;
 195
 196                 mlt_properties properties = MLT_FILTER_PROPERTIES(filter);
 197                 //properties for stabilize
 198                 mlt_properties_set(properties, "shakiness", "4");
 199                 mlt_properties_set(properties, "accuracy", "4");
 200                 mlt_properties_set(properties, "stepsize", "6");
 201                 mlt_properties_set(properties, "algo", "1");
 202                 mlt_properties_set(properties, "mincontrast", "0.3");
 203
 204                 //properties for transform
 205                 mlt_properties_set(properties, "smoothing", "15");
 206                 mlt_properties_set(properties, "maxshift", "-1");
 207                 mlt_properties_set(properties, "maxangle", "-1");
 208                 mlt_properties_set(properties, "crop", "0");
 209                 mlt_properties_set(properties, "zoom", "0");
 210                 mlt_properties_set(properties, "optzoom", "1");
 211                 mlt_properties_set(properties, "zoomspeed", "0.25");
 212
 213                 return filter;
 214         }
 215
 216         delete data;
 217         return NULL;
 218 }
 219
 220 }