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v4l2sink: don't put functional code like ioctl calls into g_return_if_fail()

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These macros will expand to NOOPs given the right defines. Also,
g_return_if_fail() and friends are meant to be used to catch programming
errors (like invalid input to functions), not runtime error handling.
This commit is contained in:
Tim-Philipp Müller 2011-01-07 01:35:45 +00:00
parent 8f501521c7
commit 09d19e7dcd
1 changed files with 16 additions and 4 deletions
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20
sys/v4l2/gstv4l2sink.c
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@ -400,7 +400,10 @@ gst_v4l2sink_sync_overlay_fields (GstV4l2Sink * v4l2sink)
memset (&format, 0x00, sizeof (struct v4l2_format));
format.type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
g_return_if_fail (v4l2_ioctl (fd, VIDIOC_G_FMT, &format) >= 0);
if (v4l2_ioctl (fd, VIDIOC_G_FMT, &format) < 0) {
GST_WARNING_OBJECT (v4l2sink, "VIDIOC_G_FMT failed");
return;
}
GST_DEBUG_OBJECT (v4l2sink,
"setting overlay: overlay_fields_set=0x%02x, top=%d, left=%d, width=%d, height=%d",
@ -417,7 +420,10 @@ gst_v4l2sink_sync_overlay_fields (GstV4l2Sink * v4l2sink)
if (v4l2sink->overlay_fields_set & RECT_HEIGHT_SET)
format.fmt.win.w.height = v4l2sink->overlay.height;
g_return_if_fail (v4l2_ioctl (fd, VIDIOC_S_FMT, &format) >= 0);
if (v4l2_ioctl (fd, VIDIOC_S_FMT, &format) < 0) {
GST_WARNING_OBJECT (v4l2sink, "VIDIOC_S_FMT failed");
return;
}
v4l2sink->overlay_fields_set = 0;
v4l2sink->overlay = format.fmt.win.w;
@ -438,7 +444,10 @@ gst_v4l2sink_sync_crop_fields (GstV4l2Sink * v4l2sink)
memset (&crop, 0x00, sizeof (struct v4l2_crop));
crop.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
g_return_if_fail (v4l2_ioctl (fd, VIDIOC_G_CROP, &crop) >= 0);
if (v4l2_ioctl (fd, VIDIOC_G_CROP, &crop) < 0) {
GST_WARNING_OBJECT (v4l2sink, "VIDIOC_G_CROP failed");
return;
}
GST_DEBUG_OBJECT (v4l2sink,
"setting crop: crop_fields_set=0x%02x, top=%d, left=%d, width=%d, height=%d",
@ -455,7 +464,10 @@ gst_v4l2sink_sync_crop_fields (GstV4l2Sink * v4l2sink)
if (v4l2sink->crop_fields_set & RECT_HEIGHT_SET)
crop.c.height = v4l2sink->crop.height;
g_return_if_fail (v4l2_ioctl (fd, VIDIOC_S_CROP, &crop) >= 0);
if (v4l2_ioctl (fd, VIDIOC_S_CROP, &crop) < 0) {
GST_WARNING_OBJECT (v4l2sink, "VIDIOC_S_CROP failed");
return;
}
v4l2sink->crop_fields_set = 0;
v4l2sink->crop = crop.c;