[gst-devel] gst_bin_add_many: assertion `GST_IS_ELEMENT (element_1)' failed
Marlos C. Machado
marlos at dcc.ufmg.br
Fri Oct 22 19:01:56 CEST 2010
Hi,
I need to implement this following stream on C++:
filesrc location=Video2.avi ! decodebin2 name=dec ! queue !
ffmpegcolorspace ! autovideosink dec. ! char audio [] = "queue !
audioconvert ! audioresample ! autoaudiosink
I've done this simple code:
int main(int argc, char ** argv)
{
GError *error = NULL;
GstElement *gstInit, *gstVideo, *gstAudio;
GstElement *video_stream, *filesrc, *decodebin2, *queue_1, *ffmpegcolorspace;
GstElement *autovideosink, *queue_2, *audioconvert, *audioresample,
*autoaudiosink;
gst_init(&argc, &argv);
video_stream = gst_pipeline_new("Video");
filesrc = gst_element_factory_make("filesrc
location=Video2.avi", "filesrc");
decodebin2 = gst_element_factory_make("decodebin2 name=dec",
"decodebin2");
queue_1 = gst_element_factory_make("queue", "queue1");
ffmpegcolorspace = gst_element_factory_make("ffmpegcolorspace",
"ffmpegcolorspace");
autovideosink = gst_element_factory_make("autovideosink dec.",
"autovideosink");
queue_2 = gst_element_factory_make("queue", "queue2");
audioconvert = gst_element_factory_make("audioconvert", "audioconvert");
audioresample = gst_element_factory_make("audioresample", "audioresample");
autoaudiosink = gst_element_factory_make("autoaudiosink", "autoaudiosink");
gst_bin_add_many(GST_BIN(video_stream), filesrc, decodebin2, queue_1,
ffmpegcolorspace,
autovideosink, queue_2, audioconvert, audioresample,
autoaudiosink, NULL);
}
It compiles, but when I try to run I get this:
(playVideo:4190): GStreamer-CRITICAL **: gst_bin_add_many: assertion
`GST_IS_ELEMENT (element_1)' failed
What Am I doing wrong?
Thanks in advance.
--
Marlos Cholodovskis Machado
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