Error in my pipe?
Locked
 
|
I really don't understand where is my error...
I've launch this line : gst-launch filesrc location=test.avi ! avidemux name=demux demux.video_00 ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink and my video works fine.. But when I do this : //-----------------------------CODE-------------- int main (int argc, char *argv[]) { GstElement *pipe,*src, *dec,*ffm,*scale, *sink; GstMessage *msg; gst_init (&argc, &argv); loop = g_main_loop_new (NULL, FALSE); if (argc < 2) g_error ("Usage: %s <path to file>", argv[0]); pipe = gst_pipeline_new ("pipeline"); src = gst_element_factory_make ("filesrc", "src"); gst_bin_add (GST_BIN (pipe), src); g_object_set (src, "location", argv[1], NULL); //essayer avec dec au lieu de src dec = gst_element_factory_make ("decodebin", "decoder"); gst_bin_add (GST_BIN (pipe), dec); ffm = gst_element_factory_make ("ffmpegcolorspace", NULL); gst_bin_add (GST_BIN (pipe), ffm); scale = gst_element_factory_make ("videoscale", NULL); gst_bin_add (GST_BIN (pipe), scale); sink = gst_element_factory_make ("autovideosink", "sink"); gst_bin_add (GST_BIN (pipe), sink); g_signal_connect (dec, "pad-added", G_CALLBACK (on_new_pad), sink); gst_element_link_many (src,dec,ffm,scale,sink, NULL); if(!pipe || !dec || !sink || !src || !scale || !ffm) g_print ("error...\n"); gst_element_set_state (pipe, GST_STATE_PLAYING); g_print ("Running...\n"); g_timeout_add (5000, get_me_out, NULL); g_main_loop_run (loop); /* Out of the main loop, clean up nicely */ g_print ("Returned, stopping playback\n"); gst_element_set_state (pipe, GST_STATE_NULL); g_print ("Deleting pipeline\n"); gst_object_unref (GST_OBJECT (pipe)); return 0; } //-----------------------------END--------------- I have nothing that shows up ! Just the "running..." message, but no video.. I really don't get it.. |
|
|
On 02/03/2011 05:57 PM, StyveA wrote:
> I really don't understand where is my error... Check out the part in the manual about dynamic pads. You need to connect to the pad-added signal from decodebin. Wim > I've launch this line : > > gst-launch filesrc location=test.avi ! avidemux name=demux demux.video_00 > ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink > > and my video works fine.. > > But when I do this : > //-----------------------------CODE-------------- > int main (int argc, char *argv[]) > { > GstElement *pipe,*src, *dec,*ffm,*scale, *sink; > GstMessage *msg; > gst_init (&argc,&argv); > > loop = g_main_loop_new (NULL, FALSE); > if (argc< 2) > g_error ("Usage: %s<path to file>", argv[0]); > > pipe = gst_pipeline_new ("pipeline"); > src = gst_element_factory_make ("filesrc", "src"); > gst_bin_add (GST_BIN (pipe), src); > g_object_set (src, "location", argv[1], NULL); //essayer avec dec au lieu > de src > dec = gst_element_factory_make ("decodebin", "decoder"); > gst_bin_add (GST_BIN (pipe), dec); > ffm = gst_element_factory_make ("ffmpegcolorspace", NULL); > gst_bin_add (GST_BIN (pipe), ffm); > scale = gst_element_factory_make ("videoscale", NULL); > gst_bin_add (GST_BIN (pipe), scale); > sink = gst_element_factory_make ("autovideosink", "sink"); > gst_bin_add (GST_BIN (pipe), sink); > g_signal_connect (dec, "pad-added", G_CALLBACK (on_new_pad), sink); > > gst_element_link_many (src,dec,ffm,scale,sink, NULL); > > if(!pipe || !dec || !sink || !src || !scale || !ffm) > g_print ("error...\n"); > > gst_element_set_state (pipe, GST_STATE_PLAYING); > > g_print ("Running...\n"); > g_timeout_add (5000, get_me_out, NULL); > g_main_loop_run (loop); > /* Out of the main loop, clean up nicely */ > g_print ("Returned, stopping playback\n"); > gst_element_set_state (pipe, GST_STATE_NULL); > g_print ("Deleting pipeline\n"); > gst_object_unref (GST_OBJECT (pipe)); > > > return 0; > > } > //-----------------------------END--------------- > > I have nothing that shows up ! Just the "running..." message, but no video.. > I really don't get it.. ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
|
|
If I understand, this is what I do here : static void on_new_pad (GstElement *element, GstPad *pad, gpointer data) { gchar *name; name = gst_pad_get_name (pad); GstPad *sinkpad; g_print ("Dynamic pad created, linking parser/decoder '%s'\n", name); sinkpad = gst_element_get_pad (video, "sink"); gst_pad_link (pad, sinkpad); gst_object_unref (sinkpad); } and in the main code : g_signal_connect (dec, "pad-added", G_CALLBACK (on_new_pad), sink); It connects the pad added from the decodebin to the sink no? |
Re: Error in my pipe?
|
|
On Thu, 2011-02-03 at 10:29 -0800, StyveA wrote:
> > Wim Taymans wrote: > > > > On 02/03/2011 05:57 PM, StyveA wrote: > >> I really don't understand where is my error... > > Check out the part in the manual about dynamic pads. You need to connect > > to > > the pad-added signal from decodebin. > > If I understand, this is what I do here : Quoting from your previous e-mail, this is where the wrong part starts: > gst_element_link_many (src,dec,ffm,scale,sink, NULL); Which points you to read the dynamic pads doc. Your callback is also not right, because you're trying to link decodebin to sink, which should be already linked to videoscale. Check the return of your linking attempt, which would have told you it didn't work. I also suggest that you use uridecodebin or even just use playbin2 in your pipeline. Regards, Luciana Fujii ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
|
|
Hum thanks, I should have missed something...
I'll try it tomorrow. For playbin, I can't 'cause I need to use an other sink (is it possible with playbin?), I need to use dfbvideosink.. For uridecodebin, I've tried it, but I need more practice I think.. |
|
|
On Thu, 2011-02-03 at 13:01 -0800, StyveA wrote:
> Hum thanks, I should have missed something... > I'll try it tomorrow. > > For playbin, I can't 'cause I need to use an other sink (is it possible with > playbin?), I need to use dfbvideosink.. > For uridecodebin, I've tried it, but I need more practice I think.. Yes, you can set sinks to playbin2, check gst-inspect for the full list of properties but there should be audio-sink and video-sink there (or something alike). > -- Thiago Santos ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
|
|
Ah ! Really good news ! I'll check that so and hope that dfbvideosink work with it ^^ Thanks =)
|
«
Return to GStreamer-devel
|
1 view|%1 views
| Free forum by Nabble | Edit this page |