diff options
| -rw-r--r-- | modules/v4l2/v4l2.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/modules/v4l2/v4l2.c b/modules/v4l2/v4l2.c index 983ad53..20ad762 100644 --- a/modules/v4l2/v4l2.c +++ b/modules/v4l2/v4l2.c @@ -106,6 +106,28 @@ static void print_video_input(const struct vidsrc_st *st) } +static void print_framerate(const struct vidsrc_st *st) +{ + struct v4l2_streamparm streamparm; + struct v4l2_fract tpf; + double fps; + + memset(&streamparm, 0, sizeof(streamparm)); + + streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + + if (v4l2_ioctl(st->fd, VIDIOC_G_PARM, &streamparm) != 0) { + warning("v4l2: VIDIOC_G_PARM error (%m)\n", errno); + return; + } + + tpf = streamparm.parm.capture.timeperframe; + fps = (double)tpf.denominator / (double)tpf.numerator; + + info("v4l2: current framerate is %.2f fps\n", fps); +} + + static int xioctl(int fd, unsigned long int request, void *arg) { int r; @@ -470,6 +492,8 @@ static int alloc(struct vidsrc_st **stp, const struct vidsrc *vs, print_video_input(st); + print_framerate(st); + err = start_capturing(st); if (err) goto out; |