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v4l2: cleanup get/set input/output

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output devices should use get/set output, and in either case we should
not print a warning message if the ioctl fails but the device does not
claim to support the tuner interface
This commit is contained in:
Rob Clark 2010-07-13 10:03:51 -05:00
parent bf88547489
commit bb07a39c67
3 changed files with 68 additions and 7 deletions
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2
sys/v4l2/gstv4l2sink.c
View file

@ -286,7 +286,7 @@ gst_v4l2sink_init (GstV4l2Sink * v4l2sink, GstV4l2SinkClass * klass)
{
v4l2sink->v4l2object = gst_v4l2_object_new (GST_ELEMENT (v4l2sink),
V4L2_BUF_TYPE_VIDEO_OUTPUT, DEFAULT_PROP_DEVICE,
gst_v4l2_get_input, gst_v4l2_set_input, NULL);
gst_v4l2_get_output, gst_v4l2_set_output, NULL);
/* same default value for video output device as is used for
* v4l2src/capture is no good.. so lets set a saner default

71
sys/v4l2/v4l2_calls.c
View file

@ -824,11 +824,14 @@ gst_v4l2_get_input (GstV4l2Object * v4l2object, gint * input)
/* ERRORS */
input_failed:
{
if (v4l2object->vcap.capabilities & V4L2_CAP_TUNER) {
/* only give a warning message if driver actually claims to have tuner
* support
*/
GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
(_("Failed to get current input on device '%s'. May be it is a radio device"), v4l2object->videodev), GST_ERROR_SYSTEM);
return FALSE;
}
return FALSE;
}
gboolean
@ -846,10 +849,70 @@ gst_v4l2_set_input (GstV4l2Object * v4l2object, gint input)
/* ERRORS */
input_failed:
{
if (v4l2object->vcap.capabilities & V4L2_CAP_TUNER) {
/* only give a warning message if driver actually claims to have tuner
* support
*/
GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
(_("Failed to set input %d on device %s."),
input, v4l2object->videodev), GST_ERROR_SYSTEM);
return FALSE;
}
return FALSE;
}
gboolean
gst_v4l2_get_output (GstV4l2Object * v4l2object, gint * output)
{
gint n;
GST_DEBUG_OBJECT (v4l2object->element, "trying to get output");
if (!GST_V4L2_IS_OPEN (v4l2object))
return FALSE;
if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_G_OUTPUT, &n) < 0)
goto output_failed;
*output = n;
GST_DEBUG_OBJECT (v4l2object->element, "output: %d", n);
return TRUE;
/* ERRORS */
output_failed:
if (v4l2object->vcap.capabilities & V4L2_CAP_TUNER) {
/* only give a warning message if driver actually claims to have tuner
* support
*/
GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
(_("Failed to get current output on device '%s'. May be it is a radio device"), v4l2object->videodev), GST_ERROR_SYSTEM);
}
return FALSE;
}
gboolean
gst_v4l2_set_output (GstV4l2Object * v4l2object, gint output)
{
GST_DEBUG_OBJECT (v4l2object->element, "trying to set output to %d", output);
if (!GST_V4L2_IS_OPEN (v4l2object))
return FALSE;
if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_S_OUTPUT, &output) < 0)
goto output_failed;
return TRUE;
/* ERRORS */
output_failed:
if (v4l2object->vcap.capabilities & V4L2_CAP_TUNER) {
/* only give a warning message if driver actually claims to have tuner
* support
*/
GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, SETTINGS,
(_("Failed to set output %d on device %s."),
output, v4l2object->videodev), GST_ERROR_SYSTEM);
}
return FALSE;
}

2
sys/v4l2/v4l2_calls.h
View file

@ -111,12 +111,10 @@ gboolean gst_v4l2_get_input (GstV4l2Object * v4l2object,
gint * input);
gboolean gst_v4l2_set_input (GstV4l2Object * v4l2object,
gint input);
#if 0 /* output not handled by now */
gboolean gst_v4l2_get_output (GstV4l2Object *v4l2object,
gint *output);
gboolean gst_v4l2_set_output (GstV4l2Object *v4l2object,
gint output);
#endif /* #if 0 - output not handled by now */
/* frequency control */
gboolean gst_v4l2_get_frequency (GstV4l2Object *v4l2object,