[Bug 647648] videorate: support for caps modifications in a running pipeline

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=647648
  GStreamer | gst-plugins-base | 0.10.32

Tom <fb8fb8> changed:

           What    |Removed                     |Added
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                 CC|                            |fb8fb8 at gmail.com

--- Comment #5 from Tom <fb8fb8 at gmail.com> 2011-07-09 23:11:52 UTC ---
Yes I have the same problem!
the framerate is always 2 even after the timer running for 10 seconds.
PS: I am using the code uploaded by Nicola.


(In reply to comment #4)
> Created an attachment (id=191051)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=191051)
> test app that show the problem
> 
> Attached is a sample application, David I know this is not enough for you, I
> hope some other developer can play with it and mark this bug as confirmed. The
> app assume you have a v4l2src device and the fpsdisplay sink element. It start
> this pipeline:
> 
> v4l2src ! videorate ! capsfilter name=vfps caps="video/xraw-yuv,framerate=2/1"
> ! fpsdisplaysink
> 
> when the pipeline go to play state start a timer that after 10 seconds change
> the capsfilter with the following code:
> 
>     GstElement *vfps=gst_bin_get_by_name(GST_BIN(pipe),"vfps");
>     GstCaps *new_caps;
> //=gst_caps_from_string("video/x-raw-yuv,framerate=15/1");
>     new_caps = gst_caps_new_simple("video/x-raw-yuv",
>                                "framerate",GST_TYPE_FRACTION, 15, 1,
>                                NULL);
>     g_object_set(G_OBJECT (vfps),"caps",new_caps,NULL);
>     gst_caps_unref(new_caps);
>     gst_object_unref(vfps);
> 
> well, fpsdisplaysink will continue to show 2fps even after this change,
> 
> to compile the app use qmake && make

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