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         void *parent;
  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.relative = 1;
  70         tdconf.invert = 0;
  71
  72         // by default a bilinear interpolation is selected
  73         tdconf.interpolType = VS_BiLinear;
  74         if (strcmp(interps, "nearest") == 0 || strcmp(interps, "neighbor") == 0)
  75                 tdconf.interpolType = VS_Zero;
  76         else if (strcmp(interps, "tiles") == 0 || strcmp(interps, "fast_bilinear") == 0)
  77                 tdconf.interpolType = VS_Linear;
  78
  79         vsTransformDataInit(&data->td, &tdconf, &fiIn, &fiOut);
  80
  81         data->avg.initialized = 0;
  82         return 0;
  83 }
  84
  85 void clear_deshake(DeshakeData *data)
  86 {
  87         if (data->initialized)
  88         {
  89                 vsMotionDetectionCleanup(&data->md);
  90                 vsTransformDataCleanup(&data->td);
  91         }
  92 }
  93
  94 static int get_image(mlt_frame frame, uint8_t **image, mlt_image_format *format,
  95                 int *width, int *height, int writable)
  96 {
  97         mlt_filter filter = (mlt_filter) mlt_frame_pop_service(frame);
  98         mlt_properties properties = MLT_FILTER_PROPERTIES(filter);
  99
 100         *format = mlt_image_yuv420p;
 101         DeshakeData *data = static_cast<DeshakeData*>(filter->child);
 102
 103         int error = mlt_frame_get_image(frame, image, format, width, height, 1);
 104         if (!error)
 105         {
 106                 // Service locks are for concurrency control
 107                 mlt_service_lock(MLT_FILTER_SERVICE(filter));
 108
 109                 // Handle signal from app to re-init data
 110                 if (mlt_properties_get_int(properties, "refresh"))
 111                 {
 112                         mlt_properties_set(properties, "refresh", NULL);
 113                         clear_deshake(data);
 114                         data->initialized = false;
 115                 }
 116
 117                 if (!data->initialized)
 118                 {
 119                         char *interps = mlt_properties_get(MLT_FRAME_PROPERTIES(frame), "rescale.interp");
 120                         init_deshake(data, properties, format, width, height,
 121                                         interps);
 122                         data->initialized = true;
 123                 }
 124
 125                 VSMotionDetect* md = &data->md;
 126                 VSTransformData* td = &data->td;
 127                 LocalMotions localmotions;
 128                 VSTransform motion;
 129                 VSFrame vsFrame;
 130
 131                 vsFrameFillFromBuffer(&vsFrame, *image, &md->fi);
 132                 vsMotionDetection(md, &localmotions, &vsFrame);
 133
 134                 motion = vsSimpleMotionsToTransform(td, &localmotions);
 135                 vs_vector_del(&localmotions);
 136
 137                 vsTransformPrepare(td, &vsFrame, &vsFrame);
 138
 139                 VSTransform t = vsLowPassTransforms(td, &data->avg, &motion);
 140 //          mlt_log_warning(filter, "Trans: det: %f %f %f \n\t\t act: %f %f %f %f",
 141 //                       motion.x, motion.y, motion.alpha,
 142 //                       t.x, t.y, t.alpha, t.zoom);
 143                 vsDoTransform(td, t);
 144                 vsTransformFinish(td);
 145
 146                 mlt_service_unlock(MLT_FILTER_SERVICE(filter));
 147         }
 148
 149         return error;
 150 }
 151
 152 static mlt_frame process_filter(mlt_filter filter, mlt_frame frame)
 153 {
 154         mlt_frame_push_service(frame, filter);
 155         mlt_frame_push_get_image(frame, get_image);
 156         return frame;
 157 }
 158
 159 static void close_filter(mlt_filter filter)
 160 {
 161         DeshakeData *data = static_cast<DeshakeData*>(filter->child);
 162         if (data)
 163         {
 164                 clear_deshake(data);
 165                 delete data;
 166                 filter->child = NULL;
 167         }
 168 }
 169
 170 extern "C"
 171 {
 172
 173 mlt_filter filter_deshake_init(mlt_profile profile, mlt_service_type type,
 174                 const char *id, char *arg)
 175 {
 176         mlt_filter filter = NULL;
 177
 178         DeshakeData *data = new DeshakeData;
 179         memset(data, 0, sizeof(DeshakeData));
 180
 181         if ((filter = mlt_filter_new()))
 182         {
 183                 filter->process = process_filter;
 184                 filter->close = close_filter;
 185                 filter->child = data;
 186                 data->parent = filter;
 187
 188                 mlt_properties properties = MLT_FILTER_PROPERTIES(filter);
 189                 //properties for stabilize
 190                 mlt_properties_set(properties, "shakiness", "4");
 191                 mlt_properties_set(properties, "accuracy", "4");
 192                 mlt_properties_set(properties, "stepsize", "6");
 193                 mlt_properties_set(properties, "algo", "1");
 194                 mlt_properties_set(properties, "mincontrast", "0.3");
 195
 196                 //properties for transform
 197                 mlt_properties_set(properties, "smoothing", "10");
 198                 mlt_properties_set(properties, "maxshift", "-1");
 199                 mlt_properties_set(properties, "maxangle", "-1");
 200                 mlt_properties_set(properties, "crop", "0");
 201                 mlt_properties_set(properties, "zoom", "0");
 202                 mlt_properties_set(properties, "optzoom", "1");
 203                 mlt_properties_set(properties, "sharpen", "0.8");
 204
 205                 return filter;
 206         }
 207
 208         delete data;
 209         return NULL;
 210 }
 211
 212 }