[gst-devel] dynamically linking ffenc??

[Jyoti D]

Thanks.

On Mon, Dec 29, 2008 at 8:55 AM, Eric Zhang <nicolas.m.zhang at gmail.com>wrote:

> Hi, gstreamer-devel:
>
>     OK. I think you can read the source code of decodebin for reference.
> Decodebin add a "typefind" element in it and "typefind" will tell it what
> the caps of the source media; Then, "find_compatibles" search in the element
> registry and find out elements which are compatible with this caps; At last,
> "try_to_link_1" loop through the elements which "find_compatibles" found and
> try to link it with source.
>
>     So, I think if you read the source codes of "gst_decode_bin_init",
> "find_compatibles" and "try_to_link_1", you can figure out the way which
> makes your work done. You can find these 3 functions in gstdecodebin.c.
>
> Eric Zhang
>
> 2008/12/26 Jyoti D <jyoti.d at allaboutif.com>
>
> Thanks for the response Eric.
>> Basically I want my application to act as an RTSP server. So I need to
>> stream the media file contents as rtp packets. For this I encode the given
>> stream into its native format, for eg. if my media file is of type Mpeg4
>> then I want to encode it into Mpeg4 and then use the compatible RTP
>> payloader element and stream it over the server.
>>
>> The client may be a VLC player which should play media file.
>>
>> So for this I need to dynamically find encoder and rtppayloader to stream
>> media content of file on the server. I need help to dynamically link the
>> compatible encoder and rtppayloader.
>>
>> Thanks,
>> Jyoti
>>
>>
>>
>> On Thu, Dec 25, 2008 at 3:03 PM, Eric Zhang <nicolas.m.zhang at gmail.com>wrote:
>>
>>> Hi, gstreamer-devel:
>>>
>>>     1. Consider "decodebin" for demux & decode your media file
>>> automatically.
>>>
>>>     2. You mentioned "encode this file into a perticular format", so why
>>> you wanna find encoder & rtppayloader dynamically ? You should link your
>>> specified encoder to decodebin then link rtppayloader, that's all.
>>>
>>> Eric Zhang
>>>
>>> 2008/12/24 Jyoti D <jyoti.d at allaboutif.com>
>>>
>>>>  Hi all,
>>>>
>>>> I am writing an application where I need to do the following:
>>>> 1. read a media file from the disk
>>>> 2. encode this file into a particular format
>>>> 3. use the rtp payloaders to send the data on to the server
>>>>
>>>> To my understanding to use an encode I need to demux and then decode the
>>>> file data
>>>> to a raw format and then encode this data using the encoder and then
>>>> payload the same using rtp payloaders.
>>>>
>>>> Now I want to find the encoder dynamically and link with the decoder.
>>>> Similarly I also need to dynamically link the rtp payloaders.
>>>>
>>>> But I am not able to do it. Could anyone help me regarding the same.
>>>>
>>>> Thanks,
>>>> Jyoti
>>>>
>>>>
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>>>
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>>
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