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POUsing udpsink to stream h264 with gstreamer ( c++ )
 

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  1. POUsing udpsink to stream h264 with gstreamer ( c++ )
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    <p>I'm trying to stream h264 video over the network using gstreamer ( in windows ) over UDP. First if I use a pipeline like this, everything appears to be ok, and I see the test pattern:</p> <p>videotestsrc, ffmpegcolorspace, x264enc, rtph264pay, rtph264depay, ffdec_h264, ffmpegcolorspace, autovideosink</p> <p>Now I decided to divide this pipeline in client and server parts, transmitting the stream over udp using udpsink and udpsrc.</p> <pre><code>Server: videotestsrc, ffmpegcolorspace, x264enc, rtph264pay, udpsink Client: udpsrc, rtph264depay, ffdec_h264, ffmpegcolorspace, autovideosink </code></pre> <p>On server I use something like that:</p> <pre><code>source = gst_element_factory_make ("videotestsrc", "source"); ffmpegcolortoYUV = gst_element_factory_make ("ffmpegcolorspace", "ffmpegcolortoYUV"); encoder = gst_element_factory_make ("x264enc", "encoder"); rtppay = gst_element_factory_make ("rtph264pay", "rtppay"); udpsink = gst_element_factory_make ("udpsink", "sink"); g_object_set (source, "pattern", 0, NULL); g_object_set( udpsink, "host", "127.0.0.1", NULL ); g_object_set( udpsink, "port", 5555, NULL ); </code></pre> <p>Then I add the elements to the pipeline and run, there are no errors anywhere. Now if I look for UDP port 5555, it's not listening!!!!</p> <p>The client part also runs but if there is no UDP port listening on server side it won't work.</p> <p>EDIT: In fact I was very close to the solution... If I start the client it works, but with some problems on the visualization... I think the problem is the x264enc configuration. Anybody knows how to change x264enc parameters like speed-preset or tune??? I tried to instantiate GstX264EncPreset or GstX264EncTune but I have no the declarations of these strcutures. Anybody knows any way to setup x264enc in other way, like parsing a string or something like that?</p>
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