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60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#include <gst/gst.h>
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/* this is an example of the src pad dictating the caps
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* the sink pad only accepts audio/raw */
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static GstPadNegotiateReturn
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negotiate (GstPad *pad, GstCaps **caps, gpointer *count)
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{
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g_print ("negotiation entered\n");
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if (!strcmp (gst_caps_get_mime (*caps), "audio/raw"))
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return GST_PAD_NEGOTIATE_AGREE;
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return GST_PAD_NEGOTIATE_FAIL;
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}
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int
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main(int argc,char *argv[])
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{
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GstPad *srcpad, *sinkpad;
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GstCaps *new;
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gst_init(&argc,&argv);
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srcpad = gst_pad_new ("src", GST_PAD_SRC);
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sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
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gst_pad_connect (srcpad, sinkpad);
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gst_pad_set_negotiate_function (sinkpad, negotiate);
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/* fill in our desired caps */
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new = gst_caps_new (
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"src_caps", /* name */
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"audio/raw", /* mime */
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gst_props_new (
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"format", GST_PROPS_INT (16),
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"depth", GST_PROPS_INT (16),
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"rate", GST_PROPS_INT (48000),
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"channels", GST_PROPS_INT (2),
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NULL
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)
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);
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gst_pad_set_caps (srcpad, new);
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new = gst_caps_new (
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"src_caps", /* name */
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"video/raw", /* mime */
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gst_props_new (
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"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','U','Y','V')),
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NULL
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)
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);
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gst_pad_set_caps (srcpad, new);
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exit (0);
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}
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