+ multidots glitcher

Fonderie/crapulator.c

@@ -97,7 +97,6 @@ FimgFilter3x3	hipass = {
 	1.0,	0.0
 	};
 
-
 switch (typef) {
 	case 0:		pfiltre = &lowpass;		break;
 	case 1:		pfiltre = &hipass;		break;
@@ -248,11 +247,13 @@ switch (idFx) {
 		break;
 
 	case CR_qsortrgb:
-		// fprintf(stderr, "!!! %d !!!\n", idFx);
-		// retval = fimg_qsort_rgb_b(image, image, 0);
 		retval = trier_les_pixels(image);
 		break;
 
+	case CR_multidots:
+		retval = plot_multidots(image, 42);
+		break;
+
 	case CR_message:
 		fprintf(stderr, "### msg from pid %d, fval=%f ###\n",
 						getpid(), fval);

Fonderie/crapulors.liste

@@ -25,6 +25,7 @@
 26	rndblks		1	1.0
 27	shiftln0	1	1.0
 28	qsortrgb	2	1.0
-42	nothing		42	3.14159
+30	multidots	100	1.333
+42	nothing		42	3.1415926
 99	message		1	1.0
 -1	end		1	1.0

Fonderie/essai.sh

@@ -31,8 +31,8 @@ convert -delay 200 /tmp/fstack*.png foo.gif
 essai_singlepass ()
 {
 MP4="/home/tth/Essais/FondageDePlomb/foo.mp4"
-INPUT="/home/tth/Essais/FondageDePlomb/capture/00???.fimg"
+INPUT="/home/tth/Essais/FondageDePlomb/capture/02[0123]??.fimg"
-FILTRE="trinitron"
+FILTRE="multidots:liss3x3:liss3x3"
 OUTDIR="/tmp/x8/"
 
 echo '********* essai single *********'

Fonderie/glitches.c

@@ -120,6 +120,24 @@ for (y=0; y<8; y++) {
 return 0;
 }
 /*   --------------------------------------------------------------   */
+int plot_multidots(FloatImg *picture, int notused)
+{
+int		pass, szimg, osrc, odst;
+
+szimg = picture->width * picture->height;
+
+for (pass=0; pass<szimg/32; pass++) {
+
+	osrc = rand() % szimg;
+	odst = rand() % szimg;
+	picture->R[odst] = (picture->R[osrc] + picture->R[odst]) / 2.0;
+	picture->G[odst] = (picture->G[osrc] + picture->G[odst]) / 2.0;
+	picture->B[odst] = (picture->B[osrc] + picture->B[odst]) / 2.0;
+
+	}
+
+return 0;
+}
 int random_blocks(FloatImg *picture, int percent)
 {
 int		x, y;
@@ -212,16 +230,26 @@ for (y=BB; y<h-BB; y++) {
 return 0;
 }
 /*   --------------------------------------------------------------   */
-static void shifter(float *fs, float *fd, int w, int nbr)
+static void shifter(float *fs, float *fd, int stp, int largeur)
 {
-int	krkr;
+int	xpos;
 
-for (krkr=0; krkr<nbr; krkr++) {
+/* move the pixels */
-	fd[krkr] = fs[(krkr+w)%nbr];
+for (xpos=0; xpos<largeur; xpos++) {
+	fd[xpos] = fs[(xpos+stp)%largeur];
 	}
 /* take your sixpack, film at 11 */
 }
 
+static void smooth_line(float *fs, float *fd, int sz)
+{
+int	xpos;
+for (xpos=1; xpos<(sz-1); xpos++) {
+	fd[xpos] = (fs[xpos-1]+fs[xpos]+fs[xpos+1]) / 3.0;
+	}
+fd[0] = fd[sz-1] = 0.0;
+}
+
 int multilines_shift_0(FloatImg *picz, int step, int nombre)
 {
 float		*buffline, *sptr;
@@ -242,15 +270,18 @@ for (idx=0; idx<nombre; idx++) {
 
 	sptr = picz->R + (ypos * picz->width);
 	shifter(sptr, buffline, step, picz->width);
-	memcpy(sptr, buffline, picz->width*sizeof(float));
+	smooth_line(buffline, sptr, picz->width);
+	// XXX memcpy (sptr, buffline, picz->width*sizeof(float));
 
 	sptr = picz->G + (ypos * picz->width);
 	shifter(sptr, buffline, step, picz->width);
-	memcpy(sptr, buffline, picz->width*sizeof(float));
+	smooth_line(buffline, sptr, picz->width);
+	// XXX memcpy (sptr, buffline, picz->width*sizeof(float));
 
 	sptr = picz->B + (ypos * picz->width);
 	shifter(sptr, buffline, step, picz->width);
-	memcpy(sptr, buffline, picz->width*sizeof(float));
+	smooth_line(buffline, sptr, picz->width);
+	// XXX memcpy (sptr, buffline, picz->width*sizeof(float));
 	}
 
 return 0;

Fonderie/glitches.h

@@ -3,6 +3,7 @@
  */
 
 int do_something(FloatImg *pimg, int notused);
+int plot_multidots(FloatImg *picture, int notused);
 
 int kill_a_random_line(FloatImg *pvictime, float level, int bits);
 int kill_a_few_lines(FloatImg *who, float fval, int number);

Fonderie/interpolator.c

@@ -89,7 +89,7 @@ for (idx=0; idx<nombre; idx++) {
 
 if (method) {
 	/* and now, we can massage all our datas */
-	// fprintf(stderr, "sorting %d ...\n", method);
+	fprintf(stderr, "sorting method = %d ...\n", method);
 	qsort(idxvalues, nombre, sizeof(IdxValue), cmp_idxvalues);
 	}
 
@@ -128,7 +128,7 @@ IdxValue	*idx_values;			/* gni? */
 fprintf(stderr, "  interpolate from '%s' to '%s' with %d steps.\n",
 			pattern, outdir, Nsteps);
 
-if (negative) fprintf(stderr, "%s: negative on\n", __func__);
+if (negative) fprintf(stderr, "%s: negative ON\n", __func__);
 
 memset(&globbuf, 0, sizeof(glob_t));
 foo = glob(pattern, 0, NULL, &globbuf);

Fonderie/t.c

@@ -153,7 +153,7 @@ puts("\t-F\tdefine:the:filter:chain");
 puts("\t-g\tinput glob pattern");
 puts("\t-i\tinfile.fimg");
 puts("\t-L\tlist available filters");
-puts("\t-o\tinfile.xxx");
+puts("\t-o\toutfile.xxx");
 puts("\t-O\t/output/directory");
 puts("\t-s\tdo single test");
 

README.md

@@ -30,10 +30,14 @@ Bien entendu, avant tout, il faut installer quelques outils et
 dépendances. Je vais tenter de les lister dans le plus grand
 désordre (à la sauce Debian) :
 
-- libtiff-dev
+```
-- libpnglite-dev
+apt  install  libtiff-dev
-- liblo-dev
+apt  install  libpnglite-dev
-- libv4l2-dev
+apt  install  liblo-dev
+apt  install  libv4l2-dev
+apt  install  libcfitsio-dev
+apt  install  libnetpbm-dev
+```
 
 Certains outils externes sont aussi utiles :
 

v4l2/grabvidseq.c

@@ -106,8 +106,9 @@ char                            *dev_name = "/dev/video0";
 struct buffer                   *buffers;
 
 int		foo;
-double		period = 10.0;			/* delai entre les captures */
+double		period = 10.0;		/* delai entre les captures
-int		nbre_capt = 1;			/* nombre de captures */
+					   en secondes */
+int		nbre_capt = 1;		/* nombre de captures */
 int		opt;
 int		width = 640;
 int		height = 480;
@@ -144,7 +145,6 @@ while ((opt = getopt(argc, argv, "c:d:ghn:o:O:p:r:s:uv")) != -1) {
 						optarg);
 					exit(1);
 					}
-				period *= 1e6;
 				break;
 		case 'r':	rotfactor = atoi(optarg);	break;
 		case 's':	parse_WxH(optarg, &width, &height);
@@ -162,7 +162,7 @@ if (verbosity > 1) {
 	fprintf(stderr, "*** GrabVidSeq (%s, %s) libv %d, pid=%d\n",
 				__DATE__, __TIME__, FIMG_VERSION, getpid());
 	fprintf(stderr, "grabing %d picz, ", nbre_capt);
-	fprintf(stderr, "period is %.3f milliseconds\n", period/1e3);
+	fprintf(stderr, "period is %.3f seconds\n", period);
 	fprintf(stderr, "framesize is %dx%d\n", width, height);
 	// fprintf(stderr, "destdir is '%s'\n", dest_dir);
 	if (upscaling) fprintf(stderr, "upscaling is on\n");
@@ -277,7 +277,7 @@ for (i = 0; i < nbre_capt; i++) {
 		}
 
 	if(verbosity > 1) {
-		fprintf(stderr, "%6d / %6d      %9.3f\n", i, nbre_capt,
+		fprintf(stderr, "%6d / %6d      %9.3f\r", i, nbre_capt,
 						fimg_timer_get(0));
 		fflush(stderr);
 		}
@@ -309,15 +309,15 @@ for (i = 0; i < nbre_capt; i++) {
 			out_name);
 #endif
 
-	if (nbre_capt > 1 && period > 1.0) {
+	if (nbre_capt > 1 && period > 0.001) {
-		usleep(period);
+		/* suspend execution for
+		   microsecond intervals */
+		usleep((int)(period*1E6));
 		}
 
 	xioctl(fd, VIDIOC_QBUF, &buf);
 	}
 
-fflush(stdout);
-
 if (verbosity) {
 	t_final = fimg_timer_get(0);
 	fprintf(stderr, "pid %d : elapsed %.3g s -> %.2f fps\n", getpid(),
@@ -398,8 +398,6 @@ switch (foo) {
 	}
 	// free buffers
 
-
-
 fimg_destroy(&cumul);
 #endif