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I have a gstreamer pipeline like so:
// Create pipeline
m_pPipeline = GST_PIPELINE(gst_pipeline_new("livemjpg-player"));
// Create source elements
GstElement *source = gst_element_factory_make("rtspsrc", "source");
//Sometimes the rtspsrc element blocks for up to 20secs when its state is changed
//so change its default tcp-timeout to 5secs
g_object_set(source, "location", rtspUrl.c_str(), "tcp-timeout", TIMEOUT, NULL );
// Create decode element
GstElement *decode = gst_element_factory_make("decodebin2", "decode");
// Create jpeg encoder element
GstElement *encoder = gst_element_factory_make("jpegenc", "jpegenc");
// Create htppJpeg format element
m_pHtmlElem = gst_element_factory_make("htmljpgimg", "jpgimg");
// Create sink format element
GstElement *sink = gst_element_factory_make("fdsink", "sink");
// g_object_set(sink, "fd", stdout, NULL );
// Add elements to the pipeline
gst_bin_add_many( GST_BIN(m_pPipeline),
source, decode, encoder, m_pHtmlElem, sink, NULL);
// Link all elements except source and decoder
// The rtspsrc and decoder will automatically determine the appropriate pad
// at run time and then they will link accordingly
if (!gst_element_link_many(encoder, m_pHtmlElem, sink, NULL))
{
vecgi::LOGMSG( vecgi::VELOG_ERROR, "Failed to link elements in MotionJpeg pipeline." );
}
g_signal_connect(source, "pad-added", G_CALLBACK(on_rtsppad_added),
decode );
g_signal_connect(decode, "new-decoded-pad", G_CALLBACK (on_pad_added),
encoder );
if( !gst_element_set_state( GST_ELEMENT(m_pPipeline),
GST_STATE_PLAYING ) )
{
//If it fails to start then reset pipeline
if ( !gst_element_set_state( GST_ELEMENT(m_pPipeline),
GST_STATE_NULL ) )
}
and on one linux machine my binary works fine but on another machine i get the following errors when I try to start it playing:
<3> Mar 16 12:17:42 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GStreamer-WARNING **: Element udpsrc0 is not in bin source
<3> Mar 16 12:17:42 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GStreamer-WARNING **: Element udpsrc1 is not in bin source
<3> Mar 16 12:17:43 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GstElement'
<3> Mar 16 12:17:43 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GStreamer-CRITICAL **: gst_element_set_state: assertion `GST_IS_ELEMENT (element)' failed
<3> Mar 16 12:17:43 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GStreamer-CRITICAL **: gst_object_unref: assertion `((GObject *) object)->ref_count > 0' failed
<3> Mar 16 12:17:42 Z276cff httpd[15647]: [error] [client 192.168.200.112] (livemjpg:17499): GStreamer-WARNING **: Element udpsrc0 is not in bin source
Then it does not start playing....
Why could this be happening??
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