Yes I did it, sorry I forgot to mention. But I want to create de pipeline to customize it. Any suggestion of what I am doing wrong in the code?. "caps are incompatible" it seems to appear in the link of queue (which streams video) and the decodebin. Thanks <div class="gmail_quote">El 3 de enero de 2012 08:23, Víctor M. Jáquez L. <<a href="mailto:vjaquez@igalia.com">vjaquez@igalia.com</a>> escribió: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="im">On Tue, Jan 03, 2012 at 04:21:32AM -0200, Rossana Guerra wrote: > Hi, I try to play an avi, I know there's playbin2 option, but I want to > gain more control and understand some issues as well. > > I can play an avi from console with this command. > gst-launch filesrc location=/home/rossana/video11.avi ! avidemux > name=demux demux.audio_00 ! decodebin ! queue ! audioconvert ! > audioresample ! autoaudiosink demux.video_00 ! decodebin ! queue ! > ffmpegcolorspace ! videoscale ! autovideosink" > > I tempted to translate into C/C++ code, but I got errors "caps incompatible" </div>I guess you could use gst_parse_lunch <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstParse.html#gst-parse-launch" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstParse.html#gst-parse-launch</a> vmjl <div><div class="h5"> > > Thanks > > Rossana > > > void on_pad_added (GstElement *element, GstPad *pad, GstElement *data) > { > g_debug ("Signal: pad-added"); > GstCaps *caps; > GstStructure *str; > > caps = gst_pad_get_caps (pad); > g_assert (caps != NULL); > str = gst_caps_get_structure (caps, 0); > g_assert (str != NULL); > > cout << "enlazando enlazara pads" << endl << endl; > if (g_strrstr (gst_structure_get_name (str), "video")) { > g_debug ("Linking video pad to dec_vd"); > // Link it actually > //GstPad *targetsink = gst_element_get_pad (decvd, "sink"); > GstPad *targetsink = gst_element_get_pad (data, "sink"); > cout << "enlazando cola de video" << endl << endl; > g_assert (targetsink != NULL); > gst_pad_link (pad, targetsink); > gst_object_unref (targetsink); > } > > if (g_strrstr (gst_structure_get_name (str), "audio")) { > g_debug ("Linking audio pad to dec_ad"); > // Link it actually > //GstPad *targetsink = gst_element_get_pad (decad, "sink"); > GstPad *targetsink = gst_element_get_pad (data, "sink"); > cout << "enlazando cola de audio" << endl << endl; > g_assert (targetsink != NULL); > gst_pad_link (pad, targetsink); > gst_object_unref (targetsink); > } > > gst_caps_unref (caps); > } > > > > int main (int argc, char *argv[]) > { > GMainLoop *loop; > > GstElement *pipeline; > GstBus *bus; > > /* Initialisation */ > gst_init (&argc, &argv); > > loop = g_main_loop_new (NULL, FALSE); > > > /* Check input arguments */ > if (argc != 1) { > g_printerr ("Usage: %s <AVI filename>\n", argv[0]); > return -1; > } > > /* Create gstreamer elements */ > pipeline = gst_pipeline_new ("media-player"); > source = gst_element_factory_make ("filesrc", "file-source"); > demuxer = gst_element_factory_make ("avidemux", "avi-demuxer"); > decvd = gst_element_factory_make ("decodebin2", "decvd"); > decad = gst_element_factory_make ("decodebin2", "decad"); > aconvert = gst_element_factory_make ("audioconvert", "aconvert"); > asample = gst_element_factory_make ("audioresample", "asample"); > vdsink = gst_element_factory_make ("autovideosink", "video-sink"); > vdqueue = gst_element_factory_make ("queue", "video-queue"); > adqueue = gst_element_factory_make ("queue", "audio-queue"); > adsink = gst_element_factory_make ("autoaudiosink", "audio-sink"); > color = gst_element_factory_make("ffmpegcolorspace","color"); > vscale = gst_element_factory_make("videoscale","vscale"); > > if (!pipeline || !source || !demuxer || !decvd || !decad || !vdsink || > !vdqueue || !adqueue || !adsink) { > g_printerr ("One element could not be created. Exiting.\n"); > return -1; > } > > /* Set up the pipeline */ > > /* we set the input filename to the source element */ > g_object_set (G_OBJECT (source), "location", "/home/videos/video11.avi", > NULL); > > /* we add a message handler */ > bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); > gst_bus_add_watch (bus, bus_call, loop); > gst_object_unref (bus); > > /* we add all elements into the pipeline */ > /* file-source | ogg-demuxer | vorbis-decoder | converter | alsa-output */ > //GstElement *clk = gst_element_factory_make("clockoverlay","clk"); > > > gst_bin_add_many (GST_BIN (pipeline),source, demuxer, decvd, decad, > aconvert, vscale,asample,color,adqueue, vdqueue, vdsink, adsink, NULL); > > > /* we link the elements together */ > /* file-source -> demuxer ~> {video-decoder -> video-output} ~> > {audio-decoder -> alsa-output} */ > gst_element_link (source, demuxer); > > > GstPad *targetsrc = gst_element_get_pad(demuxer, "video_%02"); > > GstPad *targetsrc2 = gst_element_get_pad(demuxer, "audio_%02"); > > > GstPad *padV = gst_element_get_static_pad(decvd,"sink"); > GstPad *padA = gst_element_get_static_pad(decad,"sink"); > > > gst_pad_link (targetsrc,padV); > gst_object_unref (targetsrc); > > > g_signal_connect (decvd, "pad-added", G_CALLBACK (on_pad_added), vdqueue); > cout << "decvd - vdqueue" << endl << endl; > gst_element_link (vdqueue,color); > gst_element_link (color,vscale); > gst_element_link (vscale,vdsink); > > gst_pad_link (targetsrc2,padA); > gst_object_unref (targetsrc2); > g_signal_connect (decad, "pad-added", G_CALLBACK (on_pad_added), adqueue); > cout << "decad - adqueue" << endl << endl; > gst_element_link (adqueue, aconvert); > gst_element_link (aconvert, asample); > gst_element_link (asample, adsink); > > > > /* Set the pipeline to "playing" state*/ > g_print ("Playing: %s\n", argv[1]); > gst_element_set_state (pipeline, GST_STATE_PLAYING); > > GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(pipeline), > GST_DEBUG_GRAPH_SHOW_ALL,"playerdec1"); > > > g_main_loop_run (loop); > > > /* Out of the main loop, clean up nicely */ > gst_element_set_state (pipeline, GST_STATE_NULL); > gst_object_unref (GST_OBJECT (pipeline)); > //g_print ("Deleting pipeline\n"); > > > return 0; > } </div></div>> _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div>