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Fix warnings in building with gcc4

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This commit is contained in:
John Zhao 2018-04-18 14:44:01 +08:00
parent 7b288456a7
commit d99bc7bce5
1 changed files with 11 additions and 11 deletions
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22
src/uvc/uvc-v4l2.cc
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@ -146,7 +146,7 @@ struct device {
<< strerror(errno);
}
v4l2_capability cap = {};
v4l2_capability cap;
if (xioctl(fd, VIDIOC_QUERYCAP, &cap) < 0) {
if (errno == EINVAL)
throw_error() << dev_name << " is no V4L2 device";
@ -160,10 +160,10 @@ struct device {
throw_error() << dev_name + " does not support streaming I/O";
// Select video input, video standard and tune here.
v4l2_cropcap cropcap = {};
v4l2_cropcap cropcap;
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (xioctl(fd, VIDIOC_CROPCAP, &cropcap) == 0) {
v4l2_crop crop = {};
v4l2_crop crop;
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
crop.c = cropcap.defrect; // reset to default
if (xioctl(fd, VIDIOC_S_CROP, &crop) < 0) {
@ -188,7 +188,7 @@ struct device {
bool pu_control_range(
uint32_t id, int32_t *min, int32_t *max, int32_t *def) const {
struct v4l2_queryctrl query = {};
struct v4l2_queryctrl query;
query.id = id;
if (xioctl(fd, VIDIOC_QUERYCTRL, &query) < 0) {
LOG_ERROR(WARNING, "pu_control_range failed");
@ -242,7 +242,7 @@ struct device {
return;
}
v4l2_format fmt = {};
v4l2_format fmt;
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fmt.fmt.pix.width = width;
fmt.fmt.pix.height = height;
@ -252,7 +252,7 @@ struct device {
if (xioctl(fd, VIDIOC_S_FMT, &fmt) < 0)
LOG_ERROR(FATAL, "VIDIOC_S_FMT");
v4l2_streamparm parm = {};
v4l2_streamparm parm;
parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (xioctl(fd, VIDIOC_G_PARM, &parm) < 0)
LOG_ERROR(FATAL, "VIDIOC_G_PARM");
@ -262,7 +262,7 @@ struct device {
LOG_ERROR(FATAL, "VIDIOC_S_PARM");
// Init memory mapped IO
v4l2_requestbuffers req = {};
v4l2_requestbuffers req;
req.count = 4;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
@ -278,7 +278,7 @@ struct device {
buffers.resize(req.count);
for (size_t i = 0; i < buffers.size(); ++i) {
v4l2_buffer buf = {};
v4l2_buffer buf;
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
@ -295,7 +295,7 @@ struct device {
// Start capturing
for (size_t i = 0; i < buffers.size(); ++i) {
v4l2_buffer buf = {};
v4l2_buffer buf;
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
@ -330,7 +330,7 @@ struct device {
}
// Close memory mapped IO
struct v4l2_requestbuffers req = {};
struct v4l2_requestbuffers req;
req.count = 0;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
@ -358,7 +358,7 @@ struct device {
}
if (FD_ISSET(fd, &fds)) {
v4l2_buffer buf = {};
v4l2_buffer buf;
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
if (xioctl(fd, VIDIOC_DQBUF, &buf) < 0) {