GstCaps filter issue

[doon]

Thanks! But my preferred objective is to understand why I have this error and
how I can correctly use caps in this case.
Sérgio Agostinho wrote
> 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@

> >:
> 
>> 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
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>> >
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>>
>>
>> --
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