[gst-devel] Questions about gstreamer "hello world"

[Stefan Kost]

Peter Cai schrieb:
> 1.  In on_pad_added, the code just blinded link demuxer and decoder,
> what if there are more than one source sink dynamically added to
> dexmuxer? Does that work correctly?
>
> static void
> on_pad_added (GstElement *element,
>
>               GstPad     *pad,
>               gpointer    data)
> {
>   GstPad *sinkpad;
>   GstElement *decoder = (GstElement *) data;
>
>   /* We can now link this pad with the vorbis-decoder sink pad */
>   g_print ("Dynamic pad created, linking demuxer/decoder\n");
>
>
>   sinkpad = gst_element_get_static_pad (decoder, "sink");
>
>   gst_pad_link (pad, sinkpad);
>
>   gst_object_unref (sinkpad);
> }
>   
>
you would check the media-type of the CAPS on the pad and link to the
appropriate decoder chain.

> ==================
>
> 2. What dose converter do?
syntax error. You did not said which. but converters usually adjust raw
data format differences (e.g. RGB <-> YUV for video or 24bit PCM <->
16bit PCM for audio).

Stefan
>
> -- 
> look to the things around you,the immediate world around you, if you
> are alive,it will mean something to you ——Paul Strand
> ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> ------------------------------------------------------------------------
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>