How to distinguish between different session(audio and video)

[Shu-Yu Fu]

Hi,

May be you can get the pad caps to see it's audio or video pad.

static void on_pad_added (GstElement *element, GstPad *pad, gpointer  data)
{
    GstCaps *caps = NULL;
    GstStructure *structure = NULL;

    caps = gst_pad_get_caps (pad);
    structure = gst_caps_get_structure (caps, 0);
    media_type = g_strdup (gst_structure_get_string (structure, "media"));
    structure = NULL;
    gst_caps_unref (caps);
    caps = NULL;

    if (0 == g_strcmp0 ("audio", media_type))
    {
        // audio stuff
    }
    else if (0 == g_strcmp0 ("video", media_type))
    {
        // video stuff
    }
    else
    {
        // not supported media type
    }

    g_free (media_type);
}
2011/8/1 arpi d <reachtoarpi at gmail.com>

> I am writing client code which receives audio+video.
>
> When I am trying to connect rtpbin and depayloader how to know which
> session is this?
>
> Actually,I am writing the code in C and am trying to use g_signal_connect.
> So that I can use
>  g_signal_connect (rtpbin, "pad-added", G_CALLBACK (pad_added_cb),
> videodepay);
>
>  g_signal_connect (rtpbin, "pad-added", G_CALLBACK (pad_added_cb),
> audiodepay); using if -else condition but for that I need to find out the
> session how I can do?
>
>
> my client pipeline is:
>
> VIDEO_DEC="rtph264depay ! ffdec_h264"
> AUDIO_DEC="rtpmp4gdepay ! faad"
>
> VIDEO_SINK="ffmpegcolorspace ! autovideosink"
> AUDIO_SINK="autoaudiosink"
> DEST=127.0.0.1
>
> LATENCY=100
>
> gst-launch -v gstrtpbin name=rtpbin                   \
>     udpsrc caps=$VIDEO_CAPS port=5000 ! rtpbin.recv_rtp_sink_0         \
>       rtpbin. ! $VIDEO_DEC ! $VIDEO_SINK                               \
>     udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0                         \
>  rtpbin.send_rtcp_src_0 ! udpsink port=5005 host=$DEST sync=false
> async=false
> udpsrc caps=$AUDIO_CAPS port=5002 ! rtpbin.recv_rtp_sink_1              \
> rtpbin. ! $AUDIO_DEC ! $AUDIO_SINK                                \
> udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1                              \
> rtpbin.send_rtcp_src_1 ! udpsink port=5007 host=$DEST sync=false
> async=false
>
> Same thing in C language ,please reply.
> Please reply.
> If you know other way please do let  me know.
> Thaks in advance.
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>


-- 
Sincerely,
Bobby
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