forked from bartvdbraak/blender
Camera tracking: run aspect correction before stabilizing shot
This commit fixes image stopped being an orthogonal rectangle because of horizontal scaling caused by pixel aspect ratio happening after rotating image which used to make orthogonal angles from footage not actually orthogonal. -- svn merge -r44150:44151 ^/branches/soc-2011-tomato
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@ -138,7 +138,7 @@ void BKE_tracking_detect_fast(struct MovieTracking *tracking, struct ListBase *t
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/* 2D stabilization */
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void BKE_tracking_stabilization_data(struct MovieTracking *tracking, int framenr, int width, int height, float loc[2], float *scale, float *angle);
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struct ImBuf *BKE_tracking_stabilize(struct MovieTracking *tracking, int framenr, struct ImBuf *ibuf, float loc[2], float *scale, float *angle);
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void BKE_tracking_stabdata_to_mat4(int width, int height, float loc[2], float scale, float angle, float mat[4][4]);
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void BKE_tracking_stabdata_to_mat4(int width, int height, float aspect, float loc[2], float scale, float angle, float mat[4][4]);
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/* Distortion/Undistortion */
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void BKE_tracking_apply_intrinsics(struct MovieTracking *tracking, float co[2], float nco[2]);
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@ -279,7 +279,7 @@ typedef struct MovieClipCache {
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int framenr;
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int postprocess_flag;
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float loc[2], scale, angle;
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float loc[2], scale, angle, aspect;
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int proxy;
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short render_flag;
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} stabilized;
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@ -727,6 +727,10 @@ static ImBuf *get_stable_cached_frame(MovieClip *clip, MovieClipUser *user, int
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if(cache->stabilized.postprocess_flag != postprocess_flag)
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return NULL;
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/* stabilization also depends on pixel aspect ratio */
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if(cache->stabilized.aspect != clip->tracking.camera.pixel_aspect)
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return NULL;
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stableibuf = cache->stabilized.ibuf;
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BKE_tracking_stabilization_data(&clip->tracking, framenr, stableibuf->x, stableibuf->y, tloc, &tscale, &tangle);
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@ -763,6 +767,7 @@ static ImBuf *put_stabilized_frame_to_cache(MovieClip *clip, MovieClipUser *user
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cache->stabilized.scale = tscale;
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cache->stabilized.angle = tangle;
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cache->stabilized.framenr = framenr;
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cache->stabilized.aspect = clip->tracking.camera.pixel_aspect;
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if(clip->flag&MCLIP_USE_PROXY) {
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cache->stabilized.proxy= rendersize_to_proxy(user, clip->flag);
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@ -2485,6 +2485,7 @@ static float stabilization_auto_scale_factor(MovieTracking *tracking, int width,
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{
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float firstmedian[2];
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MovieTrackingStabilization *stab= &tracking->stabilization;
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float aspect= tracking->camera.pixel_aspect;
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if(stab->ok)
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return stab->scale;
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@ -2535,7 +2536,7 @@ static float stabilization_auto_scale_factor(MovieTracking *tracking, int width,
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float mat[4][4];
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float points[4][2]={{0.0f, 0.0f}, {0.0f, height}, {width, height}, {width, 0.0f}};
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BKE_tracking_stabdata_to_mat4(width, height, loc, scale, angle, mat);
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BKE_tracking_stabdata_to_mat4(width, height, aspect, loc, scale, angle, mat);
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for(i= 0; i<4; i++) {
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int j;
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@ -2650,6 +2651,7 @@ ImBuf *BKE_tracking_stabilize(MovieTracking *tracking, int framenr, ImBuf *ibuf,
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MovieTrackingStabilization *stab= &tracking->stabilization;
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ImBuf *tmpibuf;
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float width= ibuf->x, height= ibuf->y;
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float aspect= tracking->camera.pixel_aspect;
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if(loc) copy_v2_v2(tloc, loc);
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if(scale) tscale= *scale;
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@ -2688,7 +2690,7 @@ ImBuf *BKE_tracking_stabilize(MovieTracking *tracking, int framenr, ImBuf *ibuf,
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float mat[4][4];
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int i, j;
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BKE_tracking_stabdata_to_mat4(ibuf->x, ibuf->y, tloc, tscale, tangle, mat);
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BKE_tracking_stabdata_to_mat4(ibuf->x, ibuf->y, aspect, tloc, tscale, tangle, mat);
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invert_m4(mat);
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for(j=0; j<tmpibuf->y; j++) {
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@ -2715,15 +2717,20 @@ ImBuf *BKE_tracking_stabilize(MovieTracking *tracking, int framenr, ImBuf *ibuf,
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return tmpibuf;
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}
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void BKE_tracking_stabdata_to_mat4(int width, int height, float loc[2], float scale, float angle, float mat[4][4])
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void BKE_tracking_stabdata_to_mat4(int width, int height, float aspect, float loc[2], float scale, float angle, float mat[4][4])
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{
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float lmat[4][4], rmat[4][4], smat[4][4], cmat[4][4], icmat[4][4];
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float lmat[4][4], rmat[4][4], smat[4][4], cmat[4][4], icmat[4][4], amat[4][4], iamat[4][4];
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float svec[3]= {scale, scale, scale};
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unit_m4(rmat);
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unit_m4(lmat);
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unit_m4(smat);
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unit_m4(cmat);
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unit_m4(amat);
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/* aspect ratio correction matrix */
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amat[0][0] = 1.0f / aspect;
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invert_m4_m4(iamat, amat);
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/* image center as rotation center */
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cmat[3][0]= (float)width/2.0f;
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@ -2735,7 +2742,7 @@ void BKE_tracking_stabdata_to_mat4(int width, int height, float loc[2], float sc
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rotate_m4(rmat, 'Z', angle); /* rotation matrix */
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/* compose transformation matrix */
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mul_serie_m4(mat, lmat, cmat, rmat, smat, icmat, NULL, NULL, NULL);
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mul_serie_m4(mat, amat, lmat, cmat, rmat, smat, icmat, iamat, NULL);
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}
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MovieDistortion *BKE_tracking_distortion_create(void)
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@ -1269,13 +1269,14 @@ void clip_draw_main(SpaceClip *sc, ARegion *ar, Scene *scene)
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if(ibuf) {
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float loc[2];
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float aspect= clip->tracking.camera.pixel_aspect;
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if(width != ibuf->x)
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mul_v2_v2fl(loc, sc->loc, (float)width / ibuf->x);
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else
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copy_v2_v2(loc, sc->loc);
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BKE_tracking_stabdata_to_mat4(width, height, loc, sc->scale, sc->angle, sc->stabmat);
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BKE_tracking_stabdata_to_mat4(width, height, aspect, loc, sc->scale, sc->angle, sc->stabmat);
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unit_m4(smat);
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smat[0][0]= 1.0f/width;
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