metadata stream

[Marco Ballesio]

Sending again. The headers of your email were somewhat messed..

On Wed, Sep 7, 2011 at 12:57 PM, Marco Ballesio <gibrovacco at gmail.com> wrote:
> Hi,
>
> On Wed, Sep 7, 2011 at 9:13 AM, Akristiniy Maxim
> <makristiniy at kraftway.ru> wrote:
>> Hello, I'm new with gstreamer.
>>
>> Is it possible to transfer over RTSP/RTP video stream and metadata
>> stream (metadata in XML for every video frame + TimeStamps same as have
>> every video frame in RTP) with gstreamer ?
>
> this would imply some strong synchronization bw video encoder and
> metadata generation. I assume you're going to use key frames only for
> whatever encoder.
>
>> If this possible can you give me direction what to do for this?
>
> In theory you can stream text through RTP with something like RFC4396
> which is, unfortunately, not implemented in GStreamer (or at least
> wasn't the last time I checked, a few months ago). The metadata stream
> would then be an additional RTP session.
>
> Besides, I would not recommend the approach you're proposing if more
> standard ways are possible: which information would the XML metadata
> carry that is not already provided by the transport/network protocols
> or the frames themselves?
>
> Regards
>
>>
>> --
>> Maxim Akristiniy <makristiniy at kraftway.ru>
>>
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>>
>>
>