Facing problems running gstreamer element in pull mode

Kapil Agrawal kapil.agl at gmail.com
Fri May 6 02:47:32 PDT 2011


I think you might try to make changes in souphttpsrc and add functionality
of adaptivestreaming ?

On Fri, May 6, 2011 at 2:42 AM, Rajashree Chivakula <
rajashree.prasad at gmail.com> wrote:

> Kapil,
>
> I was trying to implement something like :
>
> gst-launch souphttpsrc ! adaptivestreaming ! decodebin ! sink.
>
> It works well if I program the souphttpsrc with the URI to download; But I
> want the adaptivestreaming element to control souphttpsrc. Is that possible
> ?
>
> Rajashree
>
>
>
>
> On Wed, May 4, 2011 at 11:25 PM, Kapil Agrawal <kapil.agl at gmail.com>wrote:
>
>> Are you trying to implement something as
>> gst-launch adaptivestreaming ! souphttpsrc ! decodebin ! sink ?
>>
>> If yes then I doubt how could you do that as  souphttpsrc only has src
>> pads.
>>
>> I would have tried to make changes in the souphttpsrc element to implement
>> adaptive streaming inside it ?
>>
>> Regards
>> Kapil
>>
>> On Thu, May 5, 2011 at 5:17 AM, Rajashree Chivakula <
>> rajashree.prasad at gmail.com> wrote:
>>
>>>  Hi all,
>>>
>>> I'm new to gstreamer so please bear with me if my issue seems trivial.
>>>
>>> I'm developing an application to implement Adaptive Streaming. For this,
>>> I have the souphttpsrc element that's linked to my adaptivestreaming
>>> element. The adaptivestreaming element needs to send out URIs to the
>>> souphttpsrc element and download chunks of data from the network, which it
>>> then passes along to the demux/decoders. Each chunk has it's own URI. The
>>> problem I'm facing is : how do i design it such that my adaptivestreaming
>>> element will control the flow of data from souphttpsrc ? Basically run my
>>> adaptivestreaming element in pull mode (I'm not really interested in random
>>> accesses, I need to download all the data that's accessible by the URI); I
>>> did implement the activate_function and activatepull_function, but it didn't
>>> work. I could not enter my looping function associated with the sinkpad of
>>> my adaptivestreaming element.
>>> In my activate function :
>>>
>>> static gboolean gst_adaptive_streaming_activate (GstPad *pad) {
>>>
>>>     if(gst_pad_check_pull_range(pad)) {
>>>
>>>         return gst_pad_activate_pull(pad, TRUE);
>>>
>>>     }
>>>
>>>     else {
>>>
>>>         g_print("Cannot activate task ...\n");
>>>
>>>         return FALSE;
>>>
>>>     }
>>>
>>> }
>>>
>>> gst_pad_check_pull_range() returned FALSE ;  But souphttplivesrc does
>>> support getrangefunc(); Any idea what’s happening here ?
>>>
>>>
>>> Thanks
>>>
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
>>
>> --
>> www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
>> twitter handle: @gst_kaps
>> http://www.linkedin.com/in/kapilagrawal
>>
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
>
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>
>


-- 
www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
twitter handle: @gst_kaps
http://www.linkedin.com/in/kapilagrawal
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