how can I make gst-rtsp-server as a VOD server?

[Demon Deng]

Hi, 

I want to use gst-rtsp-server as my vod server, but I found it is too hard for some reasons:

1. rtsp-server has no flow control in sending packet. 

It sends packets as fast as possible which makes client can not decode in time.

2. rtsp-server has no dynamic url.

Everytime I add a file into vod list, I need to add a url mapping for it.

3. rtsp-server doesn't support dynamic pipeline.

Everytime I add a file into vod list, I need to rewrite a new pipeline to parse and rtppay it.

I am new here, so I am afraid that I missed something useful in rtsp-server or gstreamer to overcome the problems above.

Does anyone can help me?

Thanks.

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[Wim Taymans]

On Fri, 2009-09-25 at 18:06 +0800, dxssx wrote:
> Hi,
> I want to use gst-rtsp-server as my vod server, but I found it is too
> hard for some reasons:
>
>
> 1. rtsp-server has no flow control in sending packet.
> It sends packets as fast as possible which makes client can not decode
> in time.

for flow control if relies on a gstreamer element that produces correct
timestamps. If you are, for example, sending an mp3 file, you need to
insert mp3parse after the filesrc so that timestamps are properly set on
the data.
>
>
> 2. rtsp-server has no dynamic url.
> Everytime I add a file into vod list, I need to add a url mapping for
> it.

You can make a subclass of the mediafactory to dynamically create
pipelines. The example base class only accept gst-launch type syntax.

>
>
> 3. rtsp-server doesn't support dynamic pipeline.
> Everytime I add a file into vod list, I need to rewrite a new pipeline
> to parse and rtppay it.

Again this can be implemented using subclasses of the standard example
factories.

Wim

>
>
> I am new here, so I am afraid that I missed something useful in
> rtsp-server or gstreamer to overcome the problems above.
>
>
> Does anyone can help me?
>
>
> Thanks.
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry® Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9-12, 2009. Register now!
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[yangsb]

As far as I know ,
Just the same as Wim mentioned, after insert mp3parse after the filesrc , the vod for mp3 files works fine.


Thanks.
Best regards.

Wim Taymans-2 wrote

On Fri, 2009-09-25 at 18:06 +0800, dxssx wrote:
> Hi,
> I want to use gst-rtsp-server as my vod server, but I found it is too
> hard for some reasons:
>
>
> 1. rtsp-server has no flow control in sending packet.
> It sends packets as fast as possible which makes client can not decode
> in time.

for flow control if relies on a gstreamer element that produces correct
timestamps. If you are, for example, sending an mp3 file, you need to
insert mp3parse after the filesrc so that timestamps are properly set on
the data.
>
>
> 2. rtsp-server has no dynamic url.
> Everytime I add a file into vod list, I need to add a url mapping for
> it.

You can make a subclass of the mediafactory to dynamically create
pipelines. The example base class only accept gst-launch type syntax.

>
>
> 3. rtsp-server doesn't support dynamic pipeline.
> Everytime I add a file into vod list, I need to rewrite a new pipeline
> to parse and rtppay it.

Again this can be implemented using subclasses of the standard example
factories.

Wim
>
>
> I am new here, so I am afraid that I missed something useful in
> rtsp-server or gstreamer to overcome the problems above.
>
>
> Does anyone can help me?
>
>
> Thanks.
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry® Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9-12, 2009. Register now!
> http://p.sf.net/sfu/devconf
> _______________________________________________ gstreamer-devel mailing list [e-mail] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel


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[Demon Deng]

Thanks,  Wim.

Sorry for problem 1. 

My server can not control the flow because I have modified rtsp server by g_object_set (G_OBJECT (udpsink0), "sync", FALSE, NULL);

When I enable the sync, it works well with mp3parse pipeline.

I will test the server with h264parse, aacparse and others.

For problem 2, 3:

Is there any plugin can auto detect acodec/vcodec of a file?

BTW: Is there a roadmap for rtsp-server? 

Thanks again.

2009/9/26 Wim Taymans <[hidden email]>

On Fri, 2009-09-25 at 18:06 +0800, dxssx wrote:
> Hi,
> I want to use gst-rtsp-server as my vod server, but I found it is too
> hard for some reasons:
>
>
> 1. rtsp-server has no flow control in sending packet.
> It sends packets as fast as possible which makes client can not decode
> in time.

for flow control if relies on a gstreamer element that produces correct
timestamps. If you are, for example, sending an mp3 file, you need to
insert mp3parse after the filesrc so that timestamps are properly set on
the data.

>
>
> 2. rtsp-server has no dynamic url.
> Everytime I add a file into vod list, I need to add a url mapping for
> it.

You can make a subclass of the mediafactory to dynamically create
pipelines. The example base class only accept gst-launch type syntax.

>
>
> 3. rtsp-server doesn't support dynamic pipeline.
> Everytime I add a file into vod list, I need to rewrite a new pipeline
> to parse and rtppay it.

Again this can be implemented using subclasses of the standard example
factories.

Wim

>
>
> I am new here, so I am afraid that I missed something useful in
> rtsp-server or gstreamer to overcome the problems above.
>
>
> Does anyone can help me?
>
>
> Thanks.
>
>

> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry&reg; Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
> http://p.sf.net/sfu/devconf
> _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel


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