GstCaps filter issue

[Sérgio Agostinho]

Hey

If your objective is to have control over the audiorate, I would suggest
modifying your code to implement a pipeline like this

filesrc ! oggmux ! vorbisdec ! audioconvert ! audiorate (or audioresample)
! audio/x-raw, rate=<desired_rate> ! autoaudiosink

and then set the desired rate on the audiorate/audioresample element.

Cheers

2015-07-23 15:42 GMT+02:00 doon <don-prog at mail.ru>:

> Thanks for the response!
> Yes, oggdemux really need audio/ogg on sink pad. Now I trying to link
> audioconvert to autoaudiosink with the same caps and with caps with
> "audio/ogg" type but still have same error.
> I think I don't quite understand something, can you explain?
> I trying to change rate of my audio.
> Sérgio Agostinho wrote
> > Hi,
> >
> > You're setting a caps filter of type audio/x-raw between the filesource
> > and
> > the typefind element, but the demuxer you selected (oggdemux) does not
> > support that on its sink pad.
> >
> > What are you trying to do?
> >
> > Cheers
> >
> > 2015-07-23 2:57 GMT+02:00 doon <
>
> > don-prog@
>
> > >:
> >
> >> I trying to create filter using caps:
> >> *               GMainLoop *loop;
> >>                 GstElement *pipeline, *source, *demuxer, *decoder,
> >> *typefind, *conv,
> >> *sink;;
> >>                 GstBus *bus;
> >>                 guint bus_watch_id;
> >>
> >>
> >>                 loop = g_main_loop_new(NULL, FALSE);
> >>
> >>                 pipeline = gst_pipeline_new ("audio-player");
> >>                 source   = gst_element_factory_make ("filesrc",
> >>  "file-source");
> >>                 typefind = gst_element_factory_make ("typefind",
> >> "typefinder");
> >>                 demuxer  = gst_element_factory_make ("oggdemux",
> >> "ogg-demuxer");
> >>                 decoder  = gst_element_factory_make ("vorbisdec",
> >>  "vorbis-decoder");
> >>                 conv     = gst_element_factory_make ("audioconvert",
> >> "converter");
> >>                 sink     = gst_element_factory_make ("autoaudiosink",
> >> "audio-output");
> >>
> >>                 if (!pipeline || !source || !demuxer || !decoder ||
> !conv
> >> || !sink) {
> >>                         g_printerr ("Не удалось создать один из
> элементов
> >> конвейера. Работа
> >> приложения завершена.\n");
> >>                         return -1;
> >>                 }
> >>                 g_signal_connect (typefind, "have-type", G_CALLBACK
> >> (cb_typefound), loop);
> >>                 g_object_set(G_OBJECT(source), "location", name_of_file,
> >> NULL);
> >>
> >>                 bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
> >>                 bus_watch_id = gst_bus_add_watch(bus, bus_call, loop);
> >>                 gst_object_unref(bus);
> >>
> >>                 gst_bin_add_many(GST_BIN(pipeline), source, typefind,
> >> demuxer, decoder,
> >> conv, sink, NULL);
> >>
> >>                 GstCaps *my_caps = gst_caps_new_simple
> >> ("audio/x-raw","rate", G_TYPE_INT,
> >> 384,NULL);
> >>
> >>
> >>                 gboolean test=false;
> >>                 test = gst_element_link_filtered(source,typefind,
> >> my_caps);
> >>                 test = gst_element_link(typefind, demuxer);
> >>                 test = gst_element_link_many(decoder, conv,sink, NULL);
> >>
> >>
> >>                 g_signal_connect(demuxer, "pad-added",
> >> G_CALLBACK(on_pad_added),
> >> decoder);*
> >>
> >> But get error:
> >> *Debug: gsttypefindelement.c(1169): gst_type_find_element_loop ():
> >> /GstPipeline:a
> >> udio-player/GstTypeFindElement:typefinder:
> >> stream stopped, reason not-linked*
> >>
> >> Var test == 1 after gst_element_link_filtered(source,typefind, my_caps);
> >>       test == 0 after gst_element_link(typefind, demuxer);
> >>       test == 1 after gst_element_link_many(decoder, conv,sink, NULL);
> >> If I just change gst_element_link_filtered on gst_element_link all going
> >> ok
> >> and file plays.
> >> What am I doing wrong?
> >>
> >>
> >>
> >> --
> >> View this message in context:
> >>
> http://gstreamer-devel.966125.n4.nabble.com/GstCaps-filter-issue-tp4672796.html
> >> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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> >>
>
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>
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> >>
> >
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>
>
> --
> View this message in context:
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> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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