<div id=":111" class="ii gt"><div id=":10m">Hi, I am facing difficulties with the use of gstAppSrc : my idea is to feed the pipeline with buffer that I have already treated from a streaming flow (data are in an avpacket => avPacket.data and avPacket.size....). I've try to follow API explanations and examples to implement my application but i still have a green display... What am I doing wrong? 1 - I have succesfully tested the pipeline with cmd line, 2 - I defined the GstAppSrc's caps... but still not sure... The stream is a mpeg2 video with mepgTS container. 3 - Is it an incompatible format pixel....? 4 - It works with a raw format and the simple pipeline : appsrc -> autovideosink _________________________________________ Here is part of my code : GMainLoop *loop; GstBus *bus; GstElement *pipeline, *appsrc, *demuxer, *decoder, *postprocess, *videosink; loop = g_main_loop_new (NULL, FALSE); /* Create gstreamer elements */ pipeline = gst_pipeline_new ("pipeline"); appsrc = gst_element_factory_make ("appsrc", "app-src"); decoder = gst_element_factory_make ("vdpaumpegdec", "vdpau-decoder"); demuxer = gst_element_factory_make ("mpegtsdemux", "mpeg-demux"); postprocess = gst_element_factory_make ("vdpauvideopostprocess", "vdpau-video-post-process"); videosink = gst_element_factory_make ("vdpausink", "vdpau-sink"); /* set the capabilities of the appsrc element */ GstCaps *caps = gst_caps_new_simple ("video/mpeg", "width", G_TYPE_INT, 720, "height", G_TYPE_INT, 576, "framerate", GST_TYPE_FRACTION, 25, 1, "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, "endianness", G_TYPE_INT, G_BYTE_ORDER, NULL); gst_app_src_set_caps(GST_APP_SRC(appsrc), caps); /* we add all elements into the pipeline */ /* we link the elements together */ gst_element_link (appsrc, demuxer); gst_element_link_many (decoder, postprocess, videosink, NULL); g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), decoder); /* play */ gst_element_set_state (pipeline, GST_STATE_PLAYING); /* create the buffer */ GstBuffer *buffer = gst_buffer_new(); GST_BUFFER_DATA (buffer) = _avPacket.data; // Data from the original buffer GST_BUFFER_SIZE (buffer) = _avPacket.size; // Size of the original buffer printf("BUFFER_SIZE = %d \n", _avPacket.size); /* push the buffer to pipeline via appsrc */ GstFlowReturn gstFlowReturn = gst_app_src_push_buffer(GST_APP_SRC(appsrc), buffer); /* and loop... */ g_main_loop_run (loop); /* clean up */ gst_element_set_state (pipeline, GST_STATE_NULL); gst_object_unref (GST_OBJECT (pipeline)); ________________________________________________ Thanks for your help! </div></div>