diff options
Diffstat (limited to 'sys/v4l2/v4l2src_calls.c')
| -rw-r--r-- | sys/v4l2/v4l2src_calls.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c index 30556af4..3dd6e0e6 100644 --- a/sys/v4l2/v4l2src_calls.c +++ b/sys/v4l2/v4l2src_calls.c @@ -999,12 +999,20 @@ gst_v4l2src_grab_frame (GstV4l2Src * v4l2src, GstBuffer ** buf) buffer.memory = V4L2_MEMORY_MMAP; for (;;) { - ret = gst_poll_wait (v4l2src->v4l2object->poll, GST_CLOCK_TIME_NONE); - if (G_UNLIKELY (ret < 0)) { - if (errno == EBUSY) - goto stopped; - if (errno != EAGAIN && errno != EINTR) - goto select_error; + if (v4l2src->v4l2object->can_poll_device) { + ret = gst_poll_wait (v4l2src->v4l2object->poll, GST_CLOCK_TIME_NONE); + if (G_UNLIKELY (ret < 0)) { + if (errno == EBUSY) + goto stopped; + if (errno == ENXIO) { + GST_DEBUG_OBJECT (v4l2src, + "v4l2 device doesn't support polling. Disabling"); + v4l2src->v4l2object->can_poll_device = FALSE; + } else { + if (errno != EAGAIN && errno != EINTR) + goto select_error; + } + } } if (v4l2_ioctl (v4l2src->v4l2object->video_fd, VIDIOC_DQBUF, &buffer) >= 0) |