Using AppSrc with RTSP Server

Angel Martin amartin at vicomtech.org
Tue Sep 3 06:57:05 PDT 2013


Please find enclosed the modified files for RELEASE-0.10.8.

Another posts mention that it is possible to do with the baseline version
using an URL but I can not find any example.

2013/8/7 Angel Martin <amartin at vicomtech.org>

> Dear all,
>
> In the past I had the same problem, so I modified rtsp-media-factory.c
> and .h in order to aggregate getElement feature according to a provided
> Element Name.
>
> Otherwise it is not possible to access to the AppSrc element to manage it.
>
> Best,
>
> Angel
>
> 2013/8/7 Chuck Crisler <ccrisler at mutualink.net>
>
>> If you look into rtsp-media-factory.c in the default-construct method you
>> will find the following:
>>
>>   g_mutex_lock (factory->medias_lock);
>>   if (key) {
>>     /* we have a key, see if we find a cached media */
>>     media = g_hash_table_lookup (factory->medias, key);
>>     if (media)
>>       g_object_ref (media);
>>   }
>>
>> This shows you how to get the media object from a URL. You can look at
>> the code to see how the hash table is built and maintained and work your
>> code from there.
>>
>>
>> On Tue, Aug 6, 2013 at 7:39 AM, Dexter Metzger <dexter.metzger at gmail.com>wrote:
>>
>>> Thanks for the response. But it's not clear to me how I can obtain the
>>> RTSP Media object. The only function I can find that returns an object of
>>> that type is "gst_rtsp_media_factory_construct". However, the documentation
>>> of this function is vague and it takes a URL object (which I don't see in
>>> any of the examples I've been following) as a parameter. Is there another
>>> function or object I'm missing? If not, would you (or someone) be able to
>>> explain the use of gst_rtsp_media_factory_construct to me?
>>>
>>>
>>> On Mon, Aug 5, 2013 at 5:12 PM, Chuck Crisler <ccrisler at mutualink.net>wrote:
>>>
>>>> There isn't anything special about an RTSP server pipeline. It is just
>>>> a pipeline. The RTSP Media object has a pipeline pointer. You can access
>>>> that object and iterate the pipeline elements and do anything you want to
>>>> do, just like a any other pipeline. Just remember that the pipeline you
>>>> specify is wrapped by a gstrtpbin object.
>>>>
>>>>
>>>> On Mon, Aug 5, 2013 at 4:46 PM, Dexter Metzger <
>>>> dexter.metzger at gmail.com> wrote:
>>>>
>>>>> Does anyone have any examples on using AppSrc with rtsp-server? This
>>>>> question has been asked multiple times in the past, but has never been
>>>>> answered. I'm unable to find any documentation describing how it can be
>>>>> done.
>>>>>
>>>>> The problem with RTSP server is that it envelops the pipeline,
>>>>> restricting access to the elements. This prevents a developer from making
>>>>> calls on the "appsrc" element. I found one post that describes a partial
>>>>> solution (
>>>>> http://lists.freedesktop.org/archives/gstreamer-devel/2012-November/037854.html)
>>>>> but it lacks a complete implementation and I'm not able to get a program
>>>>> working using its concepts.
>>>>>
>>>>> _______________________________________________
>>>>> 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
>>>>
>>>>
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
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>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
>> _______________________________________________
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>>
>>
>
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