From 862ab2a30e2c29a91acde93da1e8c687e9c41ce4 Mon Sep 17 00:00:00 2001
From: Tonton Th <sigfood@dinorama.fr>
Date: Tue, 28 May 2019 12:10:55 +0200
Subject: [PATCH] ajout d'un chronometre

---
 .gitignore        | 2 +-
 v4l2/Makefile     | 2 +-
 v4l2/grabvidseq.c | 7 +++++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index ac00857..c3133b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,7 +13,7 @@ essai
 
 v4l2/t
 v4l2/capture
-v4l2/v4l2grab
+v4l2/grabvidseq
 v4l2/*.o
 v4l2/*.ppm
 
diff --git a/v4l2/Makefile b/v4l2/Makefile
index f18d3cf..183a764 100644
--- a/v4l2/Makefile
+++ b/v4l2/Makefile
@@ -16,6 +16,6 @@ capture: capture.c Makefile
 	gcc -Wall -g $<       -o $@
 
 grabvidseq: grabvidseq.c Makefile
-	gcc -Wall -g $< -lv4l2 -o $@
+	gcc -Wall -g $< ../libfloatimg.a -lv4l2 -o $@
 
 
diff --git a/v4l2/grabvidseq.c b/v4l2/grabvidseq.c
index a920e95..88af9e9 100644
--- a/v4l2/grabvidseq.c
+++ b/v4l2/grabvidseq.c
@@ -26,6 +26,8 @@
 #include <linux/videodev2.h>
 #include <libv4l2.h>
 
+#include "../floatimg.h"
+
 #define CLEAR(x) memset(&(x), 0, sizeof(x))
 
 struct buffer {
@@ -80,6 +82,7 @@ struct buffer                   *buffers;
 int		period = 10;		/* delai entre les captures */
 int		nbre_capt = 1;		/* nombre de captures */
 int		opt;
+double		t_debut, t_final;
 
 while ((opt = getopt(argc, argv, "d:hn:p:v")) != -1) {
 	switch(opt) {
@@ -142,6 +145,7 @@ for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
 		}
 	}
 
+t_debut = fimg_timer_set(0);
 for (i = 0; i < n_buffers; ++i) {
 	CLEAR(buf);
 	buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
@@ -194,6 +198,9 @@ for (i = 0; i < nbre_capt; i++) {
 	xioctl(fd, VIDIOC_QBUF, &buf);
 }
 
+t_final = fimg_timer_get(0);
+fprintf(stderr, "elapsed time %g s.\n", t_final);
+
 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 xioctl(fd, VIDIOC_STREAMOFF, &type);
 for (i = 0; i < n_buffers; ++i) {