forked from tTh/FloatImg
cumul image can be converted to gray
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cc6dd330ed
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f0c704a818
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@ -71,6 +71,7 @@ if (verbosity) {
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}
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puts("options :");
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puts("\t-d /dev/?\tselect video device");
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puts("\t-g\t\tconvert to gray");
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puts("\t-n NNN\t\thow many frames ?");
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puts("\t-O ./\t\tset Output dir");
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puts("\t-o bla\t\tset output filename");
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@ -103,6 +104,7 @@ int opt;
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int width = 640;
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int height = 480;
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double t_final;
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int to_gray = 0;
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char *dest_dir = "."; /* no trailing slash */
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char *outfile = "out.pnm";
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@ -110,9 +112,10 @@ char *outfile = "out.pnm";
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FloatImg grab, cumul;
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#endif
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while ((opt = getopt(argc, argv, "d:hn:o:O:p:s:v")) != -1) {
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while ((opt = getopt(argc, argv, "d:ghn:o:O:p:s:v")) != -1) {
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switch(opt) {
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case 'd': dev_name = optarg; break;
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case 'g': to_gray = 1; break;
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case 'h': help(0); break;
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case 'n': nbre_capt = atoi(optarg); break;
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case 'O': dest_dir = optarg; break;
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@ -143,6 +146,7 @@ fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
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fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
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xioctl(fd, VIDIOC_S_FMT, &fmt);
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if (fmt.fmt.pix.pixelformat != V4L2_PIX_FMT_RGB24) {
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/* are others formats usable ? */
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printf("Libv4l didn't accept RGB24 format. Can't proceed.\n");
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exit(EXIT_FAILURE);
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}
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@ -197,11 +201,10 @@ foo = fimg_create(&cumul,
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FIMG_TYPE_RGB);
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fimg_clear(&cumul);
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cumul.fval = 255.0;
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cumul.count = 0;
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#endif
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type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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xioctl(fd, VIDIOC_STREAMON, &type);
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@ -282,6 +285,10 @@ fprintf(stderr, "pid %d : elapsed time %g s\n", getpid(), t_final);
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fprintf(stderr, "\t%.2f fps\n", (double)nbre_capt / t_final);
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#if SAVE_AS_CUMUL
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if (to_gray) {
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if (verbosity) fputs("converting to gray\n", stderr);
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foo = fimg_to_gray(&cumul);
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}
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// save cumul to file
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foo = fimg_save_as_pnm(&cumul, outfile, 0);
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// free buffers
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