pmt-info callback not getting invoked
Yogesh Tyagi
yogesh.bit2006 at gmail.com
Mon Sep 2 01:15:40 PDT 2013
Does anybody has idea about this?
Thanks,
Yogesh
On Fri, Aug 30, 2013 at 9:48 PM, Yogesh Tyagi <yogesh.bit2006 at gmail.com>wrote:
> Hi Robert/Ian
>
> I agree with you but I just wanted to know what is the trigger that causes
> invocation of get_properties methods inside gstreamer plugins?
>
> Thanks,
> Yogesh
>
>
> On Fri, Aug 30, 2013 at 7:11 PM, Robert Krakora <
> rob.krakora at messagenetsystems.com> wrote:
>
>> I agree with Ian. gst-launch is really only meant for testing...
>>
>>
>> On Fri, Aug 30, 2013 at 9:40 AM, Ian Davidson <
>> id012c3076 at blueyonder.co.uk> wrote:
>>
>>> It makes perfect sense to SET a property when using gst-launch to set
>>> off a pre-determined set of actions. But I don't see the value of trying
>>> to pass anything to gst-launch from within a plug-in - you need the
>>> flexibility of a program (for example, a C program) which does have the
>>> ability to interrogate properties and 'do things' dependant on the values
>>> of those properties.
>>>
>>> Of course, you are free to prove me wrong.
>>>
>>> Ian
>>>
>>> On 30/08/2013 14:20, Yogesh Tyagi wrote:
>>>
>>> Hi,
>>>
>>> That was an example to show how do we invoke set_property through
>>> gst-launch.I am concerned for get_property.
>>>
>>> Thanks,
>>> Yogesh
>>>
>>>
>>> On Fri, Aug 30, 2013 at 6:44 PM, Ian Davidson <
>>> id012c3076 at blueyonder.co.uk> wrote:
>>>
>>>> On a quick inspection - it would seem that the plug-in has a property
>>>> 'program', but you are trying to set 'program-number'.
>>>>
>>>> Ian
>>>>
>>>>
>>>> On 30/08/2013 13:45, Yogesh Tyagi wrote:
>>>>
>>>> Hi,
>>>>
>>>> Yes, it is a custom plugin. Here is the output of "gst-inspect
>>>> mdtsdemux"
>>>>
>>>> Factory Details:
>>>> Long name: Transport Stream Demultiplexer
>>>> Class: Demuxer
>>>> Description:
>>>> Author(s):
>>>> Rank: none (0)
>>>>
>>>> Plugin Details:
>>>> Name: mdplugin
>>>> Description: GStreamer elements
>>>> Filename: /usr/lib/libgstmdplugin.so
>>>> Version: 0.10.22.1
>>>> License: BSD
>>>> Source module: gst-md
>>>> Binary package: GStreamer MD Elements
>>>> Origin URL:
>>>>
>>>> GObject
>>>> +----GstObject
>>>> +----GstElement
>>>> +----MdGstElement
>>>> +----MdGstDemux
>>>>
>>>> Pad Templates:
>>>> SRC template: 'src_index'
>>>> Availability: Sometimes
>>>> Capabilities:
>>>> application/x-md-index
>>>>
>>>> SRC template: 'src_spts'
>>>> Availability: Sometimes
>>>> Capabilities:
>>>> video/mpegts
>>>> mpegversion: 2
>>>> systemstream: true
>>>> packetsize: [ 188, 192 ]
>>>>
>>>> SRC template: 'src_aud'
>>>> Availability: Sometimes
>>>> Capabilities:
>>>> audio/mpeg
>>>> mpegversion: { 1, 2, 4 }
>>>> audio/x-lpcm
>>>> width: { 16, 20, 24 }
>>>> rate: { 48000, 96000 }
>>>> channels: [ 1, 8 ]
>>>> dynamic_range: [ 0, 255 ]
>>>> emphasis: { false, true }
>>>> mute: { false, true }
>>>> audio/x-ac3
>>>> audio/x-eac3
>>>> audio/x-dts
>>>> audio/x-private-ts-lpcm
>>>>
>>>> SRC template: 'src_vid'
>>>> Availability: Sometimes
>>>> Capabilities:
>>>> video/mpeg
>>>> mpegversion: { 1, 2, 4 }
>>>> systemstream: false
>>>> video/x-h264
>>>> video/x-wmv
>>>> wmvversion: 3
>>>> format: WVC1
>>>>
>>>> SINK template: 'sink'
>>>> Availability: Always
>>>> Capabilities:
>>>> video/mpeg
>>>> mpegversion: 2
>>>> systemstream: true
>>>> video/mpegts
>>>> mpegversion: 2
>>>> systemstream: true
>>>> packetsize: [ 188, 192 ]
>>>>
>>>>
>>>> Element Flags:
>>>> no flags set
>>>>
>>>> Element Implementation:
>>>> Has change_state() function: md_demux_change_state
>>>>
>>>> Element has no clocking capabilities.
>>>> Element has no indexing capabilities.
>>>> Element has no URI handling capabilities.
>>>>
>>>> Pads:
>>>> SINK: 'sink'
>>>> Implementation:
>>>> Has chainfunc(): md_gst_element_sink_chain
>>>> Has custom eventfunc(): md_gst_element_sink_event
>>>> Has custom queryfunc(): gst_pad_query_default
>>>> Has custom iterintlinkfunc():
>>>> gst_pad_iterate_internal_links_default
>>>> Has setcapsfunc(): md_gst_demux_sinkpad_setcaps
>>>> Has acceptcapsfunc(): gst_pad_acceptcaps_default
>>>> Pad Template: 'sink'
>>>>
>>>> Element Properties:
>>>> name : The name of the object
>>>> flags: readable, writable
>>>> String. Default: null Current: "mdgstdemux0"
>>>> use-buffering : Permits join multiple buffers to feed 32kb
>>>> buffers to device
>>>> flags: readable, writable
>>>> Boolean. Default: true Current: true
>>>> stream-time-offset : Specifies an offset in ns to apply on clock
>>>> synchronization.
>>>> flags: readable, writable
>>>> Unsigned Integer64. Range: 0 -
>>>> 18446744073709551615 Default: 0 Current: 0
>>>> pids : The comma-separated list of PIDs to be demuxed.
>>>> Value may be base-10, or in 0xABC hex format.
>>>> flags: writable
>>>> String. Default: "-1" Write only
>>>> program : The program number to demux. If set along with
>>>> 'pids', or auto=true, this will give the demux a hint as to which PMT to
>>>> process. Without pids, or auto=true, this will trigger conversion from
>>>> MPTS to SPTS. Value may be base-10, or in 0xABC hex format.
>>>> flags: writable
>>>> String. Default: "-1" Write only
>>>> auto : If true, demux will automatically play the
>>>> default Video and Audio streams
>>>> flags: writable
>>>> Boolean. Default: true Write only
>>>> pmt-info : GObject with properties containing information
>>>> from the TS PMT about the currently selected program and its streams
>>>>
>>>> flags: Object of type "MDTsPmtInfo"
>>>>
>>>> Element Signals:
>>>> "pad-added" : void user_function (GstElement* object,
>>>> GstPad* arg0,
>>>> gpointer user_data);
>>>> "pad-removed" : void user_function (GstElement* object,
>>>> GstPad* arg0,
>>>> gpointer user_data);
>>>> "no-more-pads" : void user_function (GstElement* object,
>>>> gpointer user_data);
>>>>
>>>> (gst-inspect-0.10:3870): GLib-GObject-WARNING **: invalid unclassed
>>>> pointer in cast to `GstPad'
>>>>
>>>> (gst-inspect-0.10:3870): GStreamer-CRITICAL **:
>>>> gst_element_remove_pad: assertion `GST_IS_PAD (pad)' failed
>>>>
>>>> Thanks,
>>>> Yogesh
>>>>
>>>>
>>>> On Fri, Aug 30, 2013 at 6:00 PM, Robert Krakora <
>>>> rob.krakora at messagenetsystems.com> wrote:
>>>>
>>>>> What is the output of "gst-inspect mdtsdemux". mdtsdemux is not in
>>>>> plugins good, bad or ugly. Is it a custom plugin or did you mean
>>>>> mpegtsdemux?
>>>>>
>>>>>
>>>>> On Fri, Aug 30, 2013 at 8:26 AM, Yogesh Tyagi <
>>>>> yogesh.bit2006 at gmail.com> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am using following command line:
>>>>>> gst-launch filesrc location=mpeg2_333_mhz.ts ! mdtsdemux
>>>>>> program-number=2 name=d ! q
>>>>>> ueue ! mpeg2_viddec ! queue max-size-buffers=3 ! vidpproc ! vidre
>>>>>> nd_sink d. ! queue ! audio_sink
>>>>>>
>>>>>> I am working on mdtsdemux demux plugin in which I have added
>>>>>> get_propery method to get pmt-info but I don't know how do I test my
>>>>>> implementation.
>>>>>>
>>>>>> Thanks,
>>>>>> Yogesh
>>>>>>
>>>>>>
>>>>>> On Fri, Aug 30, 2013 at 5:44 PM, Robert Krakora <
>>>>>> rob.krakora at messagenetsystems.com> wrote:
>>>>>>
>>>>>>> Hi Yogesh,
>>>>>>>
>>>>>>> It would help if you included the gst-launch command line or a
>>>>>>> snippet of your source. At a minimum, at least tell us what plugins
>>>>>>> comprise your pipeline.
>>>>>>>
>>>>>>> Best Regards,
>>>>>>>
>>>>>>> Rob Krakora
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Aug 30, 2013 at 8:09 AM, Yogesh Tyagi <
>>>>>>> yogesh.bit2006 at gmail.com> wrote:
>>>>>>>
>>>>>>>> Can somebody help me find answer to this query?
>>>>>>>> How can get_property method be explicitly invoked in gstreamer
>>>>>>>> using some tools like gst-launch?
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Yogesh
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Aug 27, 2013 at 5:35 PM, Yogesh Tyagi <
>>>>>>>> yogesh.bit2006 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I got to work on a gstreamer based test app which plays media
>>>>>>>>> from http source.In this application following callback has been registered
>>>>>>>>> to receive pmt information.
>>>>>>>>>
>>>>>>>>> g_signal_connect(G_OBJECT(demuxer), "notify::pmt-info",
>>>>>>>>> (GCallback) demuxer_notify_pmt_info, NULL);
>>>>>>>>>
>>>>>>>>> When I run this application I never see
>>>>>>>>> "demuxer_notify_pmt_info" method getting called.
>>>>>>>>> Can somebody please let me know when this callback function will
>>>>>>>>> be activated so that I can see the pmt info of the stream.
>>>>>>>>>
>>>>>>>>> Is there any way to invoke get_property methods of plugins like
>>>>>>>>> e.g set_property methods can be invoked with gst-launch when we pass
>>>>>>>>> "property-name=value" to gst-launch.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Yogesh
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> gstreamer-devel mailing list
>>>>>>>> gstreamer-devel at lists.freedesktop.org
>>>>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> Rob Krakora,
>>>>>>> Senior Software Engineer
>>>>>>>
>>>>>>> MessageNet Systems
>>>>>>> 101 E Carmel Dr, Suite 105
>>>>>>> Carmel, IN 46032
>>>>>>>
>>>>>>> MessageNetSystems.com<http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage>
>>>>>>> Rob.Krakora at MessageNetSystems.com<rob.krakora at messagenetsystems.com>
>>>>>>> P: 317.566.1677, 212
>>>>>>> F: 317.663.0808
>>>>>>>
>>>>>>> For the latest news, information, and blogs, please be sure to
>>>>>>> visit, follow, and like us...
>>>>>>>
>>>>>>>
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>>>>>>> <http://www.youtube.com/user/MessageNetConnection/feed> <http://www.linkedin.com/company/messagenet-systems>
>>>>>>> <http://twitter.com/MessageNet> <http://www.facebook.com/MessageNetsystems>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> gstreamer-devel mailing list
>>>>>>> gstreamer-devel at lists.freedesktop.org
>>>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> gstreamer-devel mailing list
>>>>>> gstreamer-devel at lists.freedesktop.org
>>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Rob Krakora,
>>>>> Senior Software Engineer
>>>>>
>>>>> MessageNet Systems
>>>>> 101 E Carmel Dr, Suite 105
>>>>> Carmel, IN 46032
>>>>>
>>>>> MessageNetSystems.com<http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage>
>>>>> Rob.Krakora at MessageNetSystems.com <rob.krakora at messagenetsystems.com>
>>>>> P: 317.566.1677, 212
>>>>> F: 317.663.0808
>>>>>
>>>>> For the latest news, information, and blogs, please be sure to visit,
>>>>> follow, and like us...
>>>>>
>>>>>
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>>>>> <http://www.youtube.com/user/MessageNetConnection/feed> <http://www.linkedin.com/company/messagenet-systems>
>>>>> <http://twitter.com/MessageNet> <http://www.facebook.com/MessageNetsystems>
>>>>>
>>>>> _______________________________________________
>>>>> gstreamer-devel mailing list
>>>>> gstreamer-devel at lists.freedesktop.org
>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> gstreamer-devel mailing listgstreamer-devel at lists.freedesktop.orghttp://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>
>>>>
>>>> --
>>>>
>>>
>>>
>>> --
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
>>
>> --
>>
>> Rob Krakora,
>> Senior Software Engineer
>>
>> MessageNet Systems
>> 101 E Carmel Dr, Suite 105
>> Carmel, IN 46032
>>
>> MessageNetSystems.com<http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage>
>> Rob.Krakora at MessageNetSystems.com <rob.krakora at messagenetsystems.com>
>> P: 317.566.1677, 212
>> F: 317.663.0808
>>
>> For the latest news, information, and blogs, please be sure to visit,
>> follow, and like us...
>>
>>
>> <http://www.messagenetcommunicationsystems.com/get-the-message-out-blog/?utm_source=email+signature&utm_medium=email&utm_campaign=gmail+signature+to+blog>
>> <http://www.youtube.com/user/MessageNetConnection/feed> <http://www.linkedin.com/company/messagenet-systems>
>> <http://twitter.com/MessageNet> <http://www.facebook.com/MessageNetsystems>
>>
>
>
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