@ -294,8 +294,8 @@ static void find_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2,
for ( x = 0 ; x < deshake - > rx * 2 + 1 ; x + + ) {
//av_log(NULL, AV_LOG_ERROR, "%5d ", deshake->counts[x][y]);
if ( deshake - > counts [ x ] [ y ] > count_max_value ) {
t - > vector . x = x - deshake - > rx ;
t - > vector . y = y - deshake - > ry ;
t - > vec . x = x - deshake - > rx ;
t - > vec . y = y - deshake - > ry ;
count_max_value = deshake - > counts [ x ] [ y ] ;
}
}
@ -304,12 +304,12 @@ static void find_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2,
p_x = ( center_x - width / 2.0 ) ;
p_y = ( center_y - height / 2.0 ) ;
t - > vector . x + = ( cos ( t - > angle ) - 1 ) * p_x - sin ( t - > angle ) * p_y ;
t - > vector . y + = sin ( t - > angle ) * p_x + ( cos ( t - > angle ) - 1 ) * p_y ;
t - > vec . x + = ( cos ( t - > angle ) - 1 ) * p_x - sin ( t - > angle ) * p_y ;
t - > vec . y + = sin ( t - > angle ) * p_x + ( cos ( t - > angle ) - 1 ) * p_y ;
// Clamp max shift & rotation?
t - > vector . x = av_clipf ( t - > vector . x , - deshake - > rx * 2 , deshake - > rx * 2 ) ;
t - > vector . y = av_clipf ( t - > vector . y , - deshake - > ry * 2 , deshake - > ry * 2 ) ;
t - > vec . x = av_clipf ( t - > vec . x , - deshake - > rx * 2 , deshake - > rx * 2 ) ;
t - > vec . y = av_clipf ( t - > vec . y , - deshake - > ry * 2 , deshake - > ry * 2 ) ;
t - > angle = av_clipf ( t - > angle , - 0.1 , 0.1 ) ;
//av_log(NULL, AV_LOG_ERROR, "%d x %d\n", avg->x, avg->y);
@ -407,8 +407,8 @@ static int config_props(AVFilterLink *link)
DeshakeContext * deshake = link - > dst - > priv ;
deshake - > ref = NULL ;
deshake - > last . vector . x = 0 ;
deshake - > last . vector . y = 0 ;
deshake - > last . vec . x = 0 ;
deshake - > last . vec . y = 0 ;
deshake - > last . angle = 0 ;
deshake - > last . zoom = 0 ;
@ -476,57 +476,57 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
// Copy transform so we can output it later to compare to the smoothed value
orig . vector . x = t . vector . x ;
orig . vector . y = t . vector . y ;
orig . vec . x = t . vec . x ;
orig . vec . y = t . vec . y ;
orig . angle = t . angle ;
orig . zoom = t . zoom ;
// Generate a one-sided moving exponential average
deshake - > avg . vector . x = alpha * t . vector . x + ( 1.0 - alpha ) * deshake - > avg . vector . x ;
deshake - > avg . vector . y = alpha * t . vector . y + ( 1.0 - alpha ) * deshake - > avg . vector . y ;
deshake - > avg . vec . x = alpha * t . vec . x + ( 1.0 - alpha ) * deshake - > avg . vec . x ;
deshake - > avg . vec . y = alpha * t . vec . y + ( 1.0 - alpha ) * deshake - > avg . vec . y ;
deshake - > avg . angle = alpha * t . angle + ( 1.0 - alpha ) * deshake - > avg . angle ;
deshake - > avg . zoom = alpha * t . zoom + ( 1.0 - alpha ) * deshake - > avg . zoom ;
// Remove the average from the current motion to detect the motion that
// is not on purpose, just as jitter from bumping the camera
t . vector . x - = deshake - > avg . vector . x ;
t . vector . y - = deshake - > avg . vector . y ;
t . vec . x - = deshake - > avg . vec . x ;
t . vec . y - = deshake - > avg . vec . y ;
t . angle - = deshake - > avg . angle ;
t . zoom - = deshake - > avg . zoom ;
// Invert the motion to undo it
t . vector . x * = - 1 ;
t . vector . y * = - 1 ;
t . vec . x * = - 1 ;
t . vec . y * = - 1 ;
t . angle * = - 1 ;
// Write statistics to file
if ( deshake - > fp ) {
snprintf ( tmp , 256 , " %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f \n " , orig . vector . x , deshake - > avg . vector . x , t . vector . x , orig . vector . y , deshake - > avg . vector . y , t . vector . y , orig . angle , deshake - > avg . angle , t . angle , orig . zoom , deshake - > avg . zoom , t . zoom ) ;
snprintf ( tmp , 256 , " %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f \n " , orig . vec . x , deshake - > avg . vec . x , t . vec . x , orig . vec . y , deshake - > avg . vec . y , t . vec . y , orig . angle , deshake - > avg . angle , t . angle , orig . zoom , deshake - > avg . zoom , t . zoom ) ;
fwrite ( tmp , sizeof ( char ) , strlen ( tmp ) , deshake - > fp ) ;
}
// Turn relative current frame motion into absolute by adding it to the
// last absolute motion
t . vector . x + = deshake - > last . vector . x ;
t . vector . y + = deshake - > last . vector . y ;
t . vec . x + = deshake - > last . vec . x ;
t . vec . y + = deshake - > last . vec . y ;
t . angle + = deshake - > last . angle ;
t . zoom + = deshake - > last . zoom ;
// Shrink motion by 10% to keep things centered in the camera frame
t . vector . x * = 0.9 ;
t . vector . y * = 0.9 ;
t . vec . x * = 0.9 ;
t . vec . y * = 0.9 ;
t . angle * = 0.9 ;
// Store the last absolute motion information
deshake - > last . vector . x = t . vector . x ;
deshake - > last . vector . y = t . vector . y ;
deshake - > last . vec . x = t . vec . x ;
deshake - > last . vec . y = t . vec . y ;
deshake - > last . angle = t . angle ;
deshake - > last . zoom = t . zoom ;
// Generate a luma transformation matrix
avfilter_get_matrix ( t . vector . x , t . vector . y , t . angle , 1.0 + t . zoom / 100.0 , matrix_y ) ;
avfilter_get_matrix ( t . vec . x , t . vec . y , t . angle , 1.0 + t . zoom / 100.0 , matrix_y ) ;
// Generate a chroma transformation matrix
avfilter_get_matrix ( t . vector . x / ( link - > w / CHROMA_WIDTH ( link ) ) , t . vector . y / ( link - > h / CHROMA_HEIGHT ( link ) ) , t . angle , 1.0 + t . zoom / 100.0 , matrix_uv ) ;
avfilter_get_matrix ( t . vec . x / ( link - > w / CHROMA_WIDTH ( link ) ) , t . vec . y / ( link - > h / CHROMA_HEIGHT ( link ) ) , t . angle , 1.0 + t . zoom / 100.0 , matrix_uv ) ;
// Transform the luma and chroma planes
ret = deshake - > transform ( link - > dst , link - > w , link - > h , CHROMA_WIDTH ( link ) , CHROMA_HEIGHT ( link ) ,
matrix_y , matrix_uv , INTERPOLATE_BILINEAR , deshake - > edge , in , out ) ;