[gstreamer-bugs] [Bug 517203] [dshowvideosrc] creates wrong caps on the source pad (width and height range)

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: HEAD CVS




------- Comment #12 from Julien Isorce  2008-02-25 23:52 UTC -------
ok, I have done more stuff about default video size negociation using :
"gstbasesrc_class->fixate = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_src_fixate);"
when no video size is asked:

example : gst-launch-0.10 dshowvideosrc ! ffmpegcolorspace ! directdrawsink
or
gst-launch-0.10 dshowvideosrc ! video/x-raw-yuv, format=(fourcc)UYVY !
ffmpegcolorspace ! directdrawsink

I am waitting answers from my email to gst devel mailing list to post the new
files gstdshowvideosrc.c and .h :

"
Hi,

I would like to know if an existing GST_TYPE_... can do the following thing :

[start, end, step]

I mean, for example with GST_TYPE_INT_RANGE, [10, 100] all value bettween
10 and 100 are accepted.
But I need something like GST_TYPE_INT_RANGE_STEP, [10, 100, 5], and only
value 10, 15, 20, 25, 30, ....., 90, 95, 100 are accepted.

I need it in dshowvideosrc, because video size have a step. For EXAMPLE,
accepted video width are bettween 80 and 768 with a step of 4, and
accepted video height are bettween 60 and 576 with a step of 2.

I am sure it is the same thing for v4l2src.
"


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