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This commit is contained in:
Kamil Trzcinski
2022-04-04 22:08:41 +02:00
parent a3fa4062f7
commit 59ba024b7f
6 changed files with 112 additions and 3 deletions
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37
device.c
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@@ -151,3 +151,40 @@ int device_consume_event(device_t *dev)
error:
return -1;
}
int device_force_key(device_t *dev)
{
struct v4l2_control ctl = {0};
ctl.id = V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME;
ctl.value = 1;
E_LOG_DEBUG(dev, "Forcing keyframe ...");
E_XIOCTL(dev, dev->fd, VIDIOC_S_CTRL, &ctl, "Can't force keyframe");
return 0;
error:
return -1;
}
int device_set_fps(device_t *dev, int desired_fps)
{
struct v4l2_streamparm setfps = {0};
setfps.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
setfps.parm.output.timeperframe.numerator = 1;
setfps.parm.output.timeperframe.denominator = desired_fps;
E_LOG_DEBUG(dev, "Configuring FPS ...");
E_XIOCTL(dev, dev->fd, VIDIOC_S_PARM, &setfps, "Can't set FPS");
return 0;
error:
return -1;
}
int device_set_option(device_t *dev, const char *name, uint32_t id, int32_t value)
{
struct v4l2_control ctl = {0};
ctl.id = id;
ctl.value = value;
E_LOG_DEBUG(dev, "Configuring option %s ...", name);
E_XIOCTL(dev, dev->fd, VIDIOC_S_CTRL, &ctl, "Can't set option %s", name);
return 0;
error:
return -1;
}