From 9dd54d74226eaaa1087ba994ba212bf9a107c97d Mon Sep 17 00:00:00 2001
From: Nicolas George <nicolas.george@normalesup.org>
Date: Wed, 27 Mar 2013 11:11:31 +0100
Subject: [PATCH] lavd/v4l2: fully init an ioctl argument.

Silence a valgrind warning about uninitialized memory.
---
 libavdevice/v4l2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index 284b495cd9..34e3d9cf42 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -949,11 +949,10 @@ static int v4l2_read_header(AVFormatContext *s1)
     }
 
     if (!s->width && !s->height) {
-        struct v4l2_format fmt;
+        struct v4l2_format fmt = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE };
 
         av_log(s1, AV_LOG_VERBOSE,
                "Querying the device for the current frame size\n");
-        fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
         if (v4l2_ioctl(s->fd, VIDIOC_G_FMT, &fmt) < 0) {
             res = AVERROR(errno);
             av_log(s1, AV_LOG_ERROR, "ioctl(VIDIOC_G_FMT): %s\n", av_err2str(res));