Facing problems running gstreamer element in pull mode

[Rajashree Chivakula]

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
>
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>
>
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