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sys/v4l2/: Framerate can be 0/1 too.

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Original commit message from CVS:
* sys/v4l2/gstv4l2src.c: (gst_v4l2src_get_all_caps),
(gst_v4l2src_get_caps):
* sys/v4l2/v4l2_calls.c: (gst_v4l2_fill_lists):
Framerate can be 0/1 too.
Init framerate to 0/1 before querying it so that we can detect
devices that don't know about a framerate.
Add some more debugging info.
This commit is contained in:
Wim Taymans 2006-09-28 17:08:47 +00:00
parent f0cf378a42
commit 210e3a8e67
2 changed files with 11 additions and 2 deletions
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4
sys/v4l2/gstv4l2src.c
View file

@ -684,7 +684,7 @@ gst_v4l2src_get_all_caps (void)
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 1, GST_V4L2_MAX_SIZE,
"height", GST_TYPE_INT_RANGE, 1, GST_V4L2_MAX_SIZE,
"framerate", GST_TYPE_FRACTION_RANGE, 1, 1, 100, 1, NULL);
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 100, 1, NULL);
gst_caps_append_structure (caps, structure);
}
}
@ -754,7 +754,7 @@ gst_v4l2src_get_caps (GstBaseSrc * src)
/* another approach for web-cams would be to try to set a very
high(100/1) and low(1/1) FPSs and get the values returned */
gst_structure_set (structure, "framerate", GST_TYPE_FRACTION_RANGE,
1, 1, 100, 1, NULL);
0, 1, 100, 1, NULL);
gst_caps_append_structure (caps, structure);
}

9
sys/v4l2/v4l2_calls.c
View file

@ -105,6 +105,8 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
}
}
GST_DEBUG_OBJECT (v4l2object->element, " '%s'", input.name);
v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
channel = GST_TUNER_CHANNEL (v4l2channel);
channel->label = g_strdup ((const gchar *) input.name);
@ -150,6 +152,9 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
GstV4l2TunerNorm *v4l2norm;
GstTunerNorm *norm;
/* fill in defaults */
standard.frameperiod.denominator = 0;
standard.frameperiod.numerator = 1;
standard.index = n;
if (ioctl (v4l2object->video_fd, VIDIOC_ENUMSTD, &standard) < 0) {
if (errno == EINVAL)
@ -162,6 +167,10 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
}
}
GST_DEBUG_OBJECT (v4l2object->element, " '%s', fps: %d/%d",
standard.name, standard.frameperiod.denominator,
standard.frameperiod.numerator);
v4l2norm = g_object_new (GST_TYPE_V4L2_TUNER_NORM, NULL);
norm = GST_TUNER_NORM (v4l2norm);
norm->label = g_strdup ((const gchar *) standard.name);