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sys/v4l2/v4l2src_calls.c: Fix potential caps leak.

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Original commit message from CVS:
Patch by: William M. Brack <wbrack at mmm dot com dot hk>
* sys/v4l2/v4l2src_calls.c: (gst_v4l2src_probe_caps_for_format):
Fix potential caps leak.
If we can't get the framerate with an ioctl, try to get it with the
current norm. Fixes #520092.
This commit is contained in:
William M. Brack 2008-05-26 15:39:26 +00:00 committed by Wim Taymans
parent dfe8d582fc
commit 61597d99e9
2 changed files with 43 additions and 10 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2008-05-26 Wim Taymans <wim.taymans@collabora.co.uk>
Patch by: William M. Brack <wbrack at mmm dot com dot hk>
* sys/v4l2/v4l2src_calls.c: (gst_v4l2src_probe_caps_for_format):
Fix potential caps leak.
If we can't get the framerate with an ioctl, try to get it with the
current norm. Fixes #520092.
2008-05-26 Wim Taymans <wim.taymans@collabora.co.uk>
Patch by: William M. Brack <wbrack at mmm dot com dot hk>

44
sys/v4l2/v4l2src_calls.c
View file

@ -760,14 +760,14 @@ gst_v4l2src_probe_caps_for_format (GstV4l2Src * v4l2src, guint32 pixelformat,
GstCaps *ret;
GstStructure *tmp;
ret = gst_caps_new_empty ();
#ifdef VIDIOC_ENUM_FRAMESIZES
gint fd = v4l2src->v4l2object->video_fd;
struct v4l2_frmsizeenum size;
GList *results = NULL;
guint32 w, h;
ret = gst_caps_new_empty ();
memset (&size, 0, sizeof (struct v4l2_frmsizeenum));
size.index = 0;
size.pixel_format = pixelformat;
@ -871,7 +871,7 @@ unknown_type:
default_frame_sizes:
#endif /* defined VIDIOC_ENUM_FRAMESIZES */
{
gint min_w, max_w, min_h, max_h;
gint min_w, max_w, min_h, max_h, fix_num = 0, fix_denom = 0;
/* This code is for Linux < 2.6.19 */
min_w = min_h = 1;
@ -887,16 +887,40 @@ default_frame_sizes:
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (pixelformat));
}
ret = gst_caps_new_empty ();
/* Since we can't get framerate directly, try to use the current norm */
if (v4l2src->v4l2object->norm && v4l2src->v4l2object->norms) {
GList *norms;
GstTunerNorm *norm;
for (norms = v4l2src->v4l2object->norms; norms != NULL;
norms = norms->next) {
norm = (GstTunerNorm *) norms->data;
if (!strcmp (norm->label, v4l2src->v4l2object->norm))
break;
}
/* If it's possible, set framerate to that (discrete) value */
if (norm) {
fix_num = gst_value_get_fraction_numerator (&norm->framerate);
fix_denom = gst_value_get_fraction_denominator (&norm->framerate);
}
}
tmp = gst_structure_copy (template);
gst_structure_set (tmp,
"width", GST_TYPE_INT_RANGE, min_w, max_w,
"height", GST_TYPE_INT_RANGE, min_h, max_h,
"framerate", GST_TYPE_FRACTION_RANGE, (gint) 0, (gint) 1, (gint) 100,
(gint) 1, NULL);
if (fix_num) {
gst_structure_set (tmp,
"width", GST_TYPE_INT_RANGE, min_w, max_w,
"height", GST_TYPE_INT_RANGE, min_h, max_h,
"framerate", GST_TYPE_FRACTION, fix_num, fix_denom, NULL);
} else {
/* if norm can't be used, copy the template framerate */
gst_structure_set (tmp,
"width", GST_TYPE_INT_RANGE, min_w, max_w,
"height", GST_TYPE_INT_RANGE, min_h, max_h, NULL);
}
gst_caps_append_structure (ret, tmp);
return ret;
}
return ret;
}
/******************************************************