[gst-devel] Trying to use equaliser with playbin

[Yogesh M. <yog...@gm...>]

Hi,

I'm trying to make use of equaliser with playbin. Here is the relevant
portion of the code: -

-------------------------------------------------------------------------
    GstElement *m_pPlayBin;
    GstElement *m_pVisualisation;
    GstElement *m_pVideoSink;
    GstElement *m_pAudioSink;
    GstElement *m_pEqualiser;
    GstElement *m_pAudioBin;
    GstPad *m_pAudioBinPad;

    m_pPlayBin = gst_element_factory_make("playbin", "gravity-playbin");

    m_pVisualisation = gst_element_factory_make("goom",
"gravity-playbin-visualisation");
    g_object_set(G_OBJECT(m_pPlayBin), "vis-plugin", m_pVisualisation, NULL);

    m_pVideoSink = gst_element_factory_make("xvimagesink",
"gravity-playbin-video");
    g_object_set(G_OBJECT(m_pPlayBin), "video-sink", m_pVideoSink, NULL);

    m_pAudioSink = gst_element_factory_make("alsasink",
"gravity-playbin-audio");
    m_pEqualiser = gst_element_factory_make("equalizer-10bands",
"gravity-equaliser");

    m_pAudioBin = gst_bin_new("audio-bin");
    m_pAudioBinPad = gst_element_get_static_pad(m_pEqualiser, "sink");
    gst_element_add_pad(m_pAudioBin, gst_ghost_pad_new("sink", m_pAudioBinPad));

    gst_bin_add_many(GST_BIN(m_pAudioBin), m_pEqualiser, m_pAudioSink, NULL);

    g_object_set(G_OBJECT(m_pPlayBin), "audio-sink", m_pAudioBin, NULL);

    gst_object_unref(GST_OBJECT(m_pAudioBinPad));

    gst_element_set_state(m_pPlayBin, GST_STATE_READY);
-------------------------------------------------------------------------
When I set the playbin to playing, state changes to GST_STATE_PLAYING
for a while (nothing is heard from the speakers, though visualisation
is repainted for a moment) and then changes to GST_STATE_PAUSED.
Afterwards if I try to set the state again to playing, the program
just stops responding to any further inputs.

Can you please go through the above code snippet and point out where
am I going wrong.

Thanks,


--
Yogesh M
http://snakeeyes.wordpress.com/