2019-05-25 17:02:30 +02:00
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/* V4L2 video picture grabber
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2019-05-28 11:56:02 +02:00
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Origin :V4L2GRAB.C - patched by tTh
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2019-05-25 17:02:30 +02:00
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Copyright (C) 2009 Mauro Carvalho Chehab <mchehab@infradead.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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2019-05-28 11:56:02 +02:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/mman.h>
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#include <linux/videodev2.h>
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#include <libv4l2.h>
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2019-05-28 12:10:55 +02:00
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#include "../floatimg.h"
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2019-08-10 18:37:52 +02:00
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#include "funcs.h"
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/* --------------------------------------------------------------------- */
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/* compilation control */
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2019-08-10 21:26:39 +02:00
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#define SAVE_AS_CUMUL 1
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#define SAVE_AS_FIMG 0
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2019-08-10 18:37:52 +02:00
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2020-12-27 02:50:41 +01:00
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#define NBR_BUFFERS 4
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2019-08-10 18:37:52 +02:00
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/* --------------------------------------------------------------------- */
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2019-05-28 11:56:02 +02:00
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#define CLEAR(x) memset(&(x), 0, sizeof(x))
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struct buffer {
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void *start;
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size_t length;
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};
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2019-05-25 17:02:30 +02:00
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2019-05-27 17:11:43 +02:00
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int verbosity;
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/* --------------------------------------------------------------------- */
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static void xioctl(int fh, int request, void *arg)
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{
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2020-07-24 14:04:54 +02:00
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int r;
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2019-05-27 17:11:43 +02:00
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2020-07-24 14:04:54 +02:00
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do {
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2019-05-27 17:11:43 +02:00
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r = v4l2_ioctl(fh, request, arg);
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} while (r == -1 && ((errno == EINTR) || (errno == EAGAIN)));
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if (r == -1) {
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fprintf(stderr, "error %d, %s\n", errno, strerror(errno));
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2019-07-20 04:09:39 +02:00
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sleep(1);
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2019-05-27 17:11:43 +02:00
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exit(EXIT_FAILURE);
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}
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}
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/* --------------------------------------------------------------------- */
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void help(int v)
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{
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2019-08-12 22:20:25 +02:00
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if (verbosity) {
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printf("compiled %s at %s\n", __DATE__, __TIME__);
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2020-01-05 12:30:48 +01:00
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fimg_print_version(1);
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2019-08-12 22:20:25 +02:00
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}
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2019-05-27 17:11:43 +02:00
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puts("options :");
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puts("\t-d /dev/?\tselect video device");
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2019-09-02 11:47:51 +02:00
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puts("\t-g\t\tconvert to gray");
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2019-05-27 17:11:43 +02:00
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puts("\t-n NNN\t\thow many frames ?");
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2019-05-28 14:55:40 +02:00
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puts("\t-O ./\t\tset Output dir");
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2019-11-15 10:39:22 +01:00
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puts("\t-o bla.xxx\tset output filename");
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2019-09-03 15:37:49 +02:00
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puts("\t-p NN.N\t\tperiod in seconds");
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2020-07-04 19:00:04 +02:00
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puts("\t-r NNN\t\trotate picture");
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2019-09-02 04:31:27 +02:00
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puts("\t-s WxH\t\tsize of capture");
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2019-11-15 10:39:22 +01:00
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puts("\t-c mode\t\tcontrast enhancement");
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2019-09-03 15:37:49 +02:00
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puts("\t-u\t\ttry upscaling...");
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2019-05-27 17:11:43 +02:00
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puts("\t-v\t\tincrease verbosity");
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2019-11-29 13:24:12 +01:00
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if (verbosity) {
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puts("\n\t\tXXX list all the contrast modes, please\n");
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}
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2019-05-27 17:11:43 +02:00
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exit(0);
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}
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/* --------------------------------------------------------------------- */
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2019-05-25 17:02:30 +02:00
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2019-05-28 11:56:02 +02:00
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int main(int argc, char **argv)
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{
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struct v4l2_format fmt;
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struct v4l2_buffer buf;
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struct v4l2_requestbuffers req;
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enum v4l2_buf_type type;
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fd_set fds;
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struct timeval tv;
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int r, fd = -1;
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unsigned int i, n_buffers;
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char *dev_name = "/dev/video0";
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2019-08-14 19:29:11 +02:00
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2020-04-02 14:49:10 +02:00
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// XXX FILE *fout;
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2019-05-28 11:56:02 +02:00
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struct buffer *buffers;
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2020-04-02 14:49:10 +02:00
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int foo;
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double period = 10.0; /* delai entre les captures */
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int nbre_capt = 1; /* nombre de captures */
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2019-05-28 11:56:02 +02:00
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int opt;
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2019-09-02 04:31:27 +02:00
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int width = 640;
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int height = 480;
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2019-11-15 10:39:22 +01:00
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double t_final, maxvalue;
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2019-09-02 11:47:51 +02:00
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int to_gray = 0;
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2019-09-03 15:37:49 +02:00
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int upscaling = 0;
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2020-04-02 14:49:10 +02:00
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int contrast = CONTRAST_NONE;
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int rotfactor = 0; /* only 0 or 90 here */
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char *dest_dir = "."; /* no trailing slash */
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2019-08-10 21:26:39 +02:00
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char *outfile = "out.pnm";
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2019-05-27 17:11:43 +02:00
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2019-08-10 21:26:39 +02:00
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#if SAVE_AS_CUMUL
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2020-04-02 14:49:10 +02:00
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FloatImg cumul, tmpfimg, *to_save;
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2019-08-10 21:26:39 +02:00
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#endif
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2020-04-02 14:49:10 +02:00
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while ((opt = getopt(argc, argv, "c:d:ghn:o:O:p:r:s:uv")) != -1) {
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2019-05-27 17:11:43 +02:00
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switch(opt) {
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2019-11-18 10:18:30 +01:00
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case 'c': contrast = fimg_id_contraste(optarg);
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2019-12-04 11:17:45 +01:00
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if (contrast < 0) {
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fputs("unknow contrast\n", stderr);
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exit(1);
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}
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2019-11-18 10:18:30 +01:00
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break;
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2019-05-27 17:11:43 +02:00
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case 'd': dev_name = optarg; break;
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2019-09-02 11:47:51 +02:00
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case 'g': to_gray = 1; break;
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2019-05-27 17:11:43 +02:00
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case 'h': help(0); break;
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case 'n': nbre_capt = atoi(optarg); break;
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2019-05-28 14:55:40 +02:00
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case 'O': dest_dir = optarg; break;
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2019-08-10 21:26:39 +02:00
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case 'o': outfile = optarg; break;
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2019-09-16 12:28:47 +02:00
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case 'p': foo = parse_double(optarg, &period);
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if (foo<0) {
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fprintf(stderr,
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"error parsing -p arg '%s'\n",
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optarg);
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exit(1);
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}
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2019-09-16 16:27:01 +02:00
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period *= 1e6;
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2019-09-16 12:28:47 +02:00
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break;
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2020-04-02 14:49:10 +02:00
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case 'r': rotfactor = atoi(optarg); break;
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2019-09-03 15:37:49 +02:00
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case 's': parse_WxH(optarg, &width, &height);
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break;
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case 'u': upscaling = 1; break;
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2019-05-27 17:11:43 +02:00
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case 'v': verbosity++; break;
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2020-04-02 14:49:10 +02:00
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default:
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fprintf(stderr, "option '%c' is wtf\n", opt);
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exit(1);
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2019-05-27 17:11:43 +02:00
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}
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}
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2019-12-05 18:07:56 +01:00
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if (verbosity > 1) {
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2020-08-13 08:03:48 +02:00
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fprintf(stderr, "*** GrabVidSeq (%s, %s) libv %d, pid=%d\n",
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__DATE__, __TIME__, FIMG_VERSION, getpid());
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2020-07-06 18:08:18 +02:00
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fprintf(stderr, "grabing %d picz, ", nbre_capt);
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2019-09-07 11:46:50 +02:00
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fprintf(stderr, "period is %.3f milliseconds\n", period/1e3);
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2019-09-02 04:31:27 +02:00
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fprintf(stderr, "framesize is %dx%d\n", width, height);
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2020-07-24 19:11:16 +02:00
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// fprintf(stderr, "destdir is '%s'\n", dest_dir);
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2019-11-14 22:21:18 +01:00
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if (upscaling) fprintf(stderr, "upscaling is on\n");
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2019-07-02 07:07:38 +02:00
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}
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2019-05-27 17:11:43 +02:00
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fd = v4l2_open(dev_name, O_RDWR | O_NONBLOCK, 0);
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if (fd < 0) {
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2019-07-20 04:09:39 +02:00
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perror(dev_name);
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2019-05-27 17:11:43 +02:00
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exit(EXIT_FAILURE);
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}
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CLEAR(fmt);
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fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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2019-09-02 04:31:27 +02:00
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fmt.fmt.pix.width = width;
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fmt.fmt.pix.height = height;
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2019-05-27 17:11:43 +02:00
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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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2019-09-02 11:47:51 +02:00
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/* are others formats usable ? */
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2019-11-14 22:21:18 +01:00
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fprintf(stderr, "Libv4l didn't accept RGB24 format. Can't proceed.\n");
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2019-05-27 17:11:43 +02:00
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exit(EXIT_FAILURE);
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}
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2019-09-02 04:31:27 +02:00
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if ((fmt.fmt.pix.width != width) || (fmt.fmt.pix.height != height)) {
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2019-11-14 22:21:18 +01:00
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fprintf(stderr, "Warning: driver is sending image at %dx%d\n",
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2019-05-25 17:02:30 +02:00
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fmt.fmt.pix.width, fmt.fmt.pix.height);
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2019-05-27 17:11:43 +02:00
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}
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2020-12-29 00:54:15 +01:00
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// fprintf(stderr,"--- Ok 1\n");
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2020-12-26 18:37:04 +01:00
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2019-05-27 17:11:43 +02:00
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CLEAR(req);
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2020-12-27 02:50:41 +01:00
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req.count = NBR_BUFFERS;
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2019-05-27 17:11:43 +02:00
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req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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req.memory = V4L2_MEMORY_MMAP;
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xioctl(fd, VIDIOC_REQBUFS, &req);
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buffers = calloc(req.count, sizeof(*buffers));
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for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
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CLEAR(buf);
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buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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buf.memory = V4L2_MEMORY_MMAP;
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buf.index = n_buffers;
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xioctl(fd, VIDIOC_QUERYBUF, &buf);
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buffers[n_buffers].length = buf.length;
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buffers[n_buffers].start = v4l2_mmap(NULL, buf.length,
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PROT_READ | PROT_WRITE, MAP_SHARED,
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fd, buf.m.offset);
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if (MAP_FAILED == buffers[n_buffers].start) {
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2019-07-02 19:36:55 +02:00
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perror("v4l2_mmap");
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2019-05-27 17:11:43 +02:00
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exit(EXIT_FAILURE);
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}
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}
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2019-08-14 19:29:11 +02:00
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(void)fimg_timer_set(0);
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2019-07-02 07:07:38 +02:00
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2020-12-27 02:50:41 +01:00
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for (i = 0; i < NBR_BUFFERS; ++i) {
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2019-05-27 17:11:43 +02:00
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CLEAR(buf);
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buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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buf.memory = V4L2_MEMORY_MMAP;
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buf.index = i;
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xioctl(fd, VIDIOC_QBUF, &buf);
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}
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2019-08-10 21:26:39 +02:00
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#if SAVE_AS_CUMUL
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2019-09-03 15:37:49 +02:00
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if (upscaling) {
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foo = fimg_create(&cumul,
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fmt.fmt.pix.width*2, fmt.fmt.pix.height*2,
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FIMG_TYPE_RGB);
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}
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else {
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foo = fimg_create(&cumul,
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fmt.fmt.pix.width, fmt.fmt.pix.height,
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FIMG_TYPE_RGB);
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}
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2019-08-10 21:26:39 +02:00
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fimg_clear(&cumul);
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2020-08-31 17:51:12 +02:00
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cumul.fval = 255.0; /* must be read from camera XXX */
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2019-09-02 11:47:51 +02:00
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cumul.count = 0;
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2020-04-02 14:49:10 +02:00
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to_save = &cumul;
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2019-08-10 21:26:39 +02:00
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#endif
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2019-05-27 17:11:43 +02:00
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type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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xioctl(fd, VIDIOC_STREAMON, &type);
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2019-07-02 07:17:11 +02:00
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2020-12-26 18:37:04 +01:00
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#if 1
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if (verbosity) fprintf(stderr,"pid %d is going to grab %d picz...\n",
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2019-07-02 19:36:55 +02:00
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getpid(), nbre_capt);
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2019-12-03 14:25:30 +01:00
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#endif
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2019-07-02 07:17:11 +02:00
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2020-12-26 19:04:22 +01:00
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/*
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* START ON THE GRABBING LOOP
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*/
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2019-05-27 17:11:43 +02:00
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for (i = 0; i < nbre_capt; i++) {
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do {
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FD_ZERO(&fds);
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FD_SET(fd, &fds);
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/* Timeout. */
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tv.tv_sec = 2;
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tv.tv_usec = 0;
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r = select(fd + 1, &fds, NULL, NULL, &tv);
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} while ((r == -1 && (errno = EINTR)));
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if (r == -1) {
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perror("select");
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2020-12-26 19:04:22 +01:00
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return errno; /* WTF ? a rogue return
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from the main() ? */
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2019-05-27 17:11:43 +02:00
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}
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2019-08-14 19:29:11 +02:00
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if(verbosity > 1) {
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2020-12-26 18:37:04 +01:00
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fprintf(stderr, "%6d / %6d %9.3f\n", i, nbre_capt,
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2019-08-24 13:24:01 +02:00
|
|
|
fimg_timer_get(0));
|
2020-12-26 18:37:04 +01:00
|
|
|
fflush(stderr);
|
2019-08-14 19:29:11 +02:00
|
|
|
}
|
2019-05-27 17:11:43 +02:00
|
|
|
CLEAR(buf);
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_MMAP;
|
|
|
|
xioctl(fd, VIDIOC_DQBUF, &buf);
|
2020-12-27 02:50:41 +01:00
|
|
|
if(verbosity > 2) {
|
|
|
|
fprintf(stderr, "xioctl VIDIOC_DQBUF done\n");
|
|
|
|
fflush(stderr);
|
|
|
|
}
|
2019-06-29 19:33:23 +02:00
|
|
|
|
2019-08-10 21:26:39 +02:00
|
|
|
#if SAVE_AS_CUMUL
|
2019-09-03 15:37:49 +02:00
|
|
|
if (upscaling) {
|
|
|
|
x_upscaler_0(buffers[buf.index].start,
|
|
|
|
fmt.fmt.pix.width, fmt.fmt.pix.height, &cumul);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
x_add_rgb2fimg(buffers[buf.index].start,
|
|
|
|
fmt.fmt.pix.width, fmt.fmt.pix.height, &cumul);
|
|
|
|
}
|
2019-08-10 18:37:52 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#if SAVE_AS_FIMG
|
|
|
|
sprintf(out_name, "%s/%05d.fimg", dest_dir, i);
|
|
|
|
if (verbosity > 1) fprintf(stderr, "--> %s\n", out_name);
|
|
|
|
foo = x_rgb2file(buffers[buf.index].start,
|
|
|
|
fmt.fmt.pix.width, fmt.fmt.pix.height,
|
|
|
|
out_name);
|
|
|
|
#endif
|
|
|
|
|
2019-08-14 19:29:11 +02:00
|
|
|
if (nbre_capt > 1 && period > 1.0) {
|
|
|
|
usleep(period);
|
2019-05-27 17:11:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
xioctl(fd, VIDIOC_QBUF, &buf);
|
2019-09-04 17:41:57 +02:00
|
|
|
}
|
2019-05-25 17:02:30 +02:00
|
|
|
|
2019-12-12 12:50:08 +01:00
|
|
|
fflush(stdout);
|
2019-09-07 11:16:15 +02:00
|
|
|
|
2019-10-30 20:09:32 +01:00
|
|
|
if (verbosity) {
|
|
|
|
t_final = fimg_timer_get(0);
|
2019-12-12 12:50:08 +01:00
|
|
|
fprintf(stderr, "pid %d : elapsed %.3g s -> %.2f fps\n", getpid(),
|
2019-09-03 15:37:49 +02:00
|
|
|
t_final, (double)nbre_capt / t_final);
|
2019-10-30 20:09:32 +01:00
|
|
|
}
|
2019-08-10 21:26:39 +02:00
|
|
|
|
2019-09-02 11:47:51 +02:00
|
|
|
if (to_gray) {
|
|
|
|
if (verbosity) fputs("converting to gray\n", stderr);
|
|
|
|
foo = fimg_to_gray(&cumul);
|
|
|
|
}
|
2019-09-03 15:37:49 +02:00
|
|
|
|
2020-04-02 14:49:10 +02:00
|
|
|
|
2019-10-30 20:09:32 +01:00
|
|
|
#if SAVE_AS_CUMUL
|
2019-08-10 21:26:39 +02:00
|
|
|
// save cumul to file
|
2019-10-30 20:09:32 +01:00
|
|
|
if (verbosity) fprintf(stderr, "saving cumul to '%s'\n", outfile);
|
|
|
|
|
2019-11-15 10:39:22 +01:00
|
|
|
/* ----- nouveau 15 nov 2019 */
|
|
|
|
maxvalue = cumul.fval * cumul.count;
|
|
|
|
if (verbosity) {
|
2020-08-03 18:29:03 +02:00
|
|
|
fprintf(stderr, "theorical maxvalue = %g\n", maxvalue);
|
2020-08-31 17:51:12 +02:00
|
|
|
fprintf(stderr, "computed max value = %g\n",
|
|
|
|
fimg_get_maxvalue(&cumul));
|
2019-11-15 10:39:22 +01:00
|
|
|
}
|
|
|
|
switch (contrast) {
|
|
|
|
case CONTRAST_NONE:
|
2019-12-03 14:25:30 +01:00
|
|
|
// if (verbosity) fprintf(stderr, "contrast: none\n");
|
2019-11-15 10:39:22 +01:00
|
|
|
break;
|
|
|
|
case CONTRAST_SQRT:
|
|
|
|
fimg_square_root(&cumul, NULL, maxvalue);
|
|
|
|
break;
|
|
|
|
case CONTRAST_POW2:
|
|
|
|
fimg_power_2(&cumul, NULL, maxvalue);
|
|
|
|
break;
|
|
|
|
case CONTRAST_COS01:
|
|
|
|
fimg_cos_01(&cumul, NULL, maxvalue);
|
|
|
|
break;
|
2019-12-04 11:17:45 +01:00
|
|
|
case CONTRAST_COS010:
|
|
|
|
fimg_cos_010(&cumul, NULL, maxvalue);
|
|
|
|
break;
|
2019-11-15 10:39:22 +01:00
|
|
|
default:
|
|
|
|
fprintf(stderr, "bad contrast method\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2020-04-02 14:49:10 +02:00
|
|
|
/* XXX warning, new from coronahome 26 mars 2020 */
|
2020-07-04 19:32:33 +02:00
|
|
|
to_save = &cumul;
|
2020-04-02 14:49:10 +02:00
|
|
|
if (90 == rotfactor) {
|
|
|
|
memset(&tmpfimg, 0, sizeof(FloatImg));
|
|
|
|
foo = fimg_rotate_90(&cumul, &tmpfimg, 0);
|
2020-07-04 19:32:33 +02:00
|
|
|
if (verbosity > 2) {
|
2020-04-02 14:49:10 +02:00
|
|
|
fprintf(stderr, "dump rot90 %p\n", &tmpfimg);
|
|
|
|
foo = fimg_save_as_png(&tmpfimg, "rot90.png", 0);
|
|
|
|
}
|
|
|
|
to_save = &tmpfimg;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-10-30 20:09:32 +01:00
|
|
|
foo = format_from_extension(outfile);
|
|
|
|
switch (foo) {
|
|
|
|
case FILE_TYPE_FIMG:
|
2020-07-04 19:32:33 +02:00
|
|
|
foo = fimg_dump_to_file(to_save, outfile, 0);
|
2019-10-30 20:09:32 +01:00
|
|
|
break;
|
|
|
|
case FILE_TYPE_PNM:
|
2020-07-04 19:32:33 +02:00
|
|
|
foo = fimg_save_as_pnm(to_save, outfile, 1);
|
2019-10-30 20:09:32 +01:00
|
|
|
break;
|
2020-01-25 17:22:31 +01:00
|
|
|
case FILE_TYPE_PNG:
|
2020-07-04 19:32:33 +02:00
|
|
|
foo = fimg_save_as_png(to_save, outfile, 0);
|
2020-01-25 17:22:31 +01:00
|
|
|
break;
|
2020-07-24 14:04:54 +02:00
|
|
|
case FILE_TYPE_FITS:
|
|
|
|
foo = fimg_save_R_as_fits(to_save, outfile, 0);
|
|
|
|
break;
|
2020-08-23 17:21:10 +02:00
|
|
|
case FILE_TYPE_TIFF:
|
|
|
|
foo = fimg_write_as_tiff(to_save, outfile, 0);
|
2020-08-24 11:40:49 +02:00
|
|
|
break;
|
2020-01-25 17:22:31 +01:00
|
|
|
default:
|
|
|
|
fprintf(stderr, "can't save as %s\n", outfile);
|
|
|
|
break;
|
2019-10-30 20:09:32 +01:00
|
|
|
}
|
2019-08-10 21:26:39 +02:00
|
|
|
// free buffers
|
2020-04-02 14:49:10 +02:00
|
|
|
|
|
|
|
|
|
|
|
|
2019-08-10 21:26:39 +02:00
|
|
|
fimg_destroy(&cumul);
|
|
|
|
#endif
|
2019-05-28 12:10:55 +02:00
|
|
|
|
2019-05-27 17:11:43 +02:00
|
|
|
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
xioctl(fd, VIDIOC_STREAMOFF, &type);
|
2020-12-27 02:50:41 +01:00
|
|
|
for (i = 0; i < NBR_BUFFERS; ++i) {
|
2019-05-27 17:11:43 +02:00
|
|
|
v4l2_munmap(buffers[i].start, buffers[i].length);
|
|
|
|
}
|
2019-05-25 17:02:30 +02:00
|
|
|
|
2019-09-03 22:23:06 +02:00
|
|
|
// free(buffers); /* atomic bombing */
|
|
|
|
|
2019-05-27 17:11:43 +02:00
|
|
|
v4l2_close(fd);
|
2019-05-25 17:02:30 +02:00
|
|
|
|
2019-05-27 17:11:43 +02:00
|
|
|
return 0;
|
|
|
|
}
|