From 1bb938e4d9c600cf5caabf6a93cefec333e33cdc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
Date: Sat, 7 Apr 2012 22:54:10 +0300
Subject: [PATCH] v4l2: avoid a pair of nested loops if frame rate is constant

---
 modules/access/v4l2/video.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/access/v4l2/video.c b/modules/access/v4l2/video.c
index c75bc2fdc8..7afa68a886 100644
--- a/modules/access/v4l2/video.c
+++ b/modules/access/v4l2/video.c
@@ -926,6 +926,12 @@ int SetupFormat (vlc_object_t *obj, int fd, uint32_t fourcc,
                 msg_Dbg (obj, "  with %"PRIu32"x%"PRIu32" steps",
                          fse.stepwise.step_width, fse.stepwise.step_height);
 
+            if (!(parm->parm.capture.capability & V4L2_CAP_TIMEPERFRAME))
+            {   /* Frame rate is constant, lets maximize resolution */
+                fmt->fmt.pix.width = fse.stepwise.max_width;
+                fmt->fmt.pix.height = fse.stepwise.max_height;
+            }
+            else
             /* FIXME: slow and dumb */
             for (uint32_t width =  fse.stepwise.min_width;
                           width <= fse.stepwise.max_width;