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Writing Video and reading in same time

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BGraaf

Writing Video and reading in same time

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

If the file is only 4 seconds long in the time I link the reading pipe, I could only see this 4 seconds, but the writing pipe is running and the file is much longer in the meantime (sorry for my bad English).

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

Thanks’ for your help!!!!

Bernhard

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Stefan Sauer

Re: Writing Video and reading in same time

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

If the file is only 4 seconds long in the time I link the reading pipe, I could only see this 4 seconds, but the writing pipe is running and the file is much longer in the meantime (sorry for my bad English).

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard


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BGraaf

AW: Writing Video and reading in same time

Hi Stefan,

Yes, no problem.

I’m using my own C-Program for that, but my pipe is looks like:

Server:

Dvbsrc ! mpegtsmux name=demux demux.video_xxxx ! queue ! mpegpsmux name=mux ! filesink location=xyz.mpg demux.audo_xxxx ! queue ! mux. (converting Mpeg-TS to Mpeg-PS à is running well)

Client:

playbin2 video-sink=xvimagesink uri=xyz.mpg
filesrc location=xyz.mpg ! mpegpsdemux name=demux ! queue ! mpeg2dec ! xvimagsink demux. ! queue ! mad ! alsasink

Both of them are running well with a closed file (have a given file length).

But also both of the have the same problem: running to the point of file, where the file length was as opening time.

Thanks

Von: gstreamer-devel-bounces+bernhard.graaf=[hidden email] [mailto:gstreamer-devel-bounces+bernhard.graaf=[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 18:09
An: [hidden email]
Betreff: Re: Writing Video and reading in same time

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard

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[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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BGraaf

AW: Writing Video and reading in same time

In reply to this post by Stefan Sauer

Hi Stefan,

sorry, I don’t read your mail to the end.

I know that I don’t need a file buffer and could stream the data directly to the client. Butt his is for a ‚time shift’ function.

Bernhard

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard

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gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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zelalem

RE: AW: Writing Video and reading in same time

In reply to this post by BGraaf

Hi I have a similar problem but in my case I want to store and retrieve raw rtp packets. Is it possible to do this as well or the filesink requires a specific file format? I put my question here because I thought the issue is the same. Basically I want the functionality of a buffer but because the data will be too big I want to store it in a file temporarily.

Thank you.

- Zelalem S.

From: [hidden email]
To: [hidden email]
Subject: AW: Writing Video and reading in same time
Date: Sat, 25 Jun 2011 18:35:43 +0200

Hi Stefan,

Yes, no problem.

I’m using my own C-Program for that, but my pipe is looks like:

Server:

Dvbsrc ! mpegtsmux name=demux demux.video_xxxx ! queue ! mpegpsmux name=mux ! filesink location=xyz.mpg demux.audo_xxxx ! queue ! mux. (converting Mpeg-TS to Mpeg-PS à is running well)

Client:

playbin2 video-sink=xvimagesink uri=xyz.mpg
filesrc location=xyz.mpg ! mpegpsdemux name=demux ! queue ! mpeg2dec ! xvimagsink demux. ! queue ! mad ! alsasink

Both of them are running well with a closed file (have a given file length).

But also both of the have the same problem: running to the point of file, where the file length was as opening time.

Thanks

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard

_______________________________________________

gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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[hidden email]
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Stefan Sauer

Re: AW: Writing Video and reading in same time

In reply to this post by BGraaf

On 06/25/11 18:35, Bernhard Graaf wrote:

Hi Stefan,

Yes, no problem.

I’m using my own C-Program for that, but my pipe is looks like:

Server:

Dvbsrc ! mpegtsmux name=demux demux.video_xxxx ! queue ! mpegpsmux name=mux ! filesink location=xyz.mpg demux.audo_xxxx ! queue ! mux. (converting Mpeg-TS to Mpeg-PS à is running well)

Client:

playbin2 video-sink=xvimagesink uri=xyz.mpg

filesrc location=xyz.mpg ! mpegpsdemux name=demux ! queue ! mpeg2dec ! xvimagsink demux. ! queue ! mad ! alsasink

Both of them are running well with a closed file (have a given file length).

But also both of the have the same problem: running to the point of file, where the file length was as opening time.

The problem is that at somepoint filesrc is checking the filesize and it is not aware that it changes.

You could try using a pipe instead of files (fssink+fdsrc instead of filesink,filesrc). Otherwise we might need a flag on filesrc to restat the file for each read and if size changed send a duration change.

Stefan

Thanks

Von: [hidden email] [[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 18:09
An: [hidden email]
Betreff: Re: Writing Video and reading in same time

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

If the file is only 4 seconds long in the time I link the reading pipe, I could only see this 4 seconds, but the writing pipe is running and the file is much longer in the meantime (sorry for my bad English).

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard
 
 
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[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
_______________________________________________
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[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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BGraaf

AW: AW: Writing Video and reading in same time

Hi Stafan,

thanks’ a lot for helping. I’ll try to use the fdsrc on client side and send you the results of my test.

Bernhard

Von: gstreamer-devel-bounces+bernhard.graaf=[hidden email] [mailto:gstreamer-devel-bounces+bernhard.graaf=[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 20:32
An: [hidden email]
Betreff: Re: AW: Writing Video and reading in same time

On 06/25/11 18:35, Bernhard Graaf wrote:

Hi Stefan,

Yes, no problem.

I’m using my own C-Program for that, but my pipe is looks like:

Server:

Dvbsrc ! mpegtsmux name=demux demux.video_xxxx ! queue ! mpegpsmux name=mux ! filesink location=xyz.mpg demux.audo_xxxx ! queue ! mux. (converting Mpeg-TS to Mpeg-PS à is running well)

Client:

playbin2 video-sink=xvimagesink uri=xyz.mpg
filesrc location=xyz.mpg ! mpegpsdemux name=demux ! queue ! mpeg2dec ! xvimagsink demux. ! queue ! mad ! alsasink

Both of them are running well with a closed file (have a given file length).

But also both of the have the same problem: running to the point of file, where the file length was as opening time.

Thanks

Von: [hidden email] [[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 18:09
An: [hidden email]
Betreff: Re: Writing Video and reading in same time

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard

_______________________________________________

gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________

gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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David Schleef-2

Re: AW: Writing Video and reading in same time

In reply to this post by Stefan Sauer

On Sat, Jun 25, 2011 at 08:32:13PM +0200, Stefan Kost wrote:

> On 06/25/11 18:35, Bernhard Graaf wrote:
> >
> > Both of them are running well with a closed file (have a given file
> > length).
> >
> > But also both of the have the same problem: running to the point of
> > file, where the file length was as opening time.
> >
> The problem is that at somepoint filesrc is checking the filesize and it
> is not aware that it changes.

BGraaf

AW: AW: Writing Video and reading in same time

In reply to this post by Stefan Sauer

Hi Stefan,

Thanks’ for your tip. It runs with fdsrc. But it seems to be not as stable as filesrc. If I add the ‘do-timestamp’-option, it’s a little bit better. Sometime when I try to use ‘gst_element_seek’ the pipe crashed. filesrc is much more stable then fdsrc. Do you have any further ideas?

Bernhard

Von: gstreamer-devel-bounces+bernhard.graaf=[hidden email] [mailto:gstreamer-devel-bounces+bernhard.graaf=[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 20:32
An: [hidden email]
Betreff: Re: AW: Writing Video and reading in same time

On 06/25/11 18:35, Bernhard Graaf wrote:

Hi Stefan,

Yes, no problem.

I’m using my own C-Program for that, but my pipe is looks like:

Server:

Dvbsrc ! mpegtsmux name=demux demux.video_xxxx ! queue ! mpegpsmux name=mux ! filesink location=xyz.mpg demux.audo_xxxx ! queue ! mux. (converting Mpeg-TS to Mpeg-PS à is running well)

Client:

playbin2 video-sink=xvimagesink uri=xyz.mpg
filesrc location=xyz.mpg ! mpegpsdemux name=demux ! queue ! mpeg2dec ! xvimagsink demux. ! queue ! mad ! alsasink

Both of them are running well with a closed file (have a given file length).

But also both of the have the same problem: running to the point of file, where the file length was as opening time.

Thanks

Von: [hidden email] [[hidden email]] Im Auftrag von Stefan Kost
Gesendet: Samstag, 25. Juni 2011 18:09
An: [hidden email]
Betreff: Re: Writing Video and reading in same time

On 06/25/11 17:56, Bernhard Graaf wrote:

Hi,

I have a problem with gstreamer.

I write a video stream in a file and try to read it with another process (a few seconds later).

If I link the reading pipe using filesrc or playbin2 and could only see the video as long as the file is in opening time.

For example:

I hope you can understand my problem.

Here my question:

Is there any solution to write a video file with one process and read it with another pipe?

What format are you using. Could you explain the scenario better. Do you wnat to relay a we-stream? Maybe you can stream the video without writing it to a file buffer.

Stefan

Thanks’ for your help!!!!

Bernhard

_______________________________________________

gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________

gstreamer-devel mailing list

[hidden email]

http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

BGraaf

AW: AW: Writing Video and reading in same time

In reply to this post by David Schleef-2

Hi David,

Thanks' for answering!
If I have a right understanding of this, then I should try to use the
'live-running' option from the basesrc to the filesrc element, because all
elements are based on basesrc? Is it right?

Bernhard

-----Ursprüngliche Nachricht-----
Von: gstreamer-devel-bounces+bernhard.graaf=[hidden email]
[mailto:gstreamer-devel-bounces+bernhard.graaf=[hidden email]]
Im Auftrag von David Schleef
Gesendet: Samstag, 25. Juni 2011 22:49
An: Discussion of the development of and with GStreamer
Betreff: Re: AW: Writing Video and reading in same time

On Sat, Jun 25, 2011 at 08:32:13PM +0200, Stefan Kost wrote:

https://bugzilla.gnome.org/show_bug.cgi?id=647940

and

https://bugzilla.gnome.org/show_bug.cgi?id=652037

David

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BGraaf

AW: AW: Writing Video and reading in same time

In reply to this post by David Schleef-2

Hi @ all,

are these bugs fixed?
If yes, are there additional parameters for reading a 'growing up size'
file?

Many thanks
Bernhard

-----Ursprüngliche Nachricht-----
Von: gstreamer-devel-bounces+bernhard.graaf=[hidden email]
[mailto:gstreamer-devel-bounces+bernhard.graaf=[hidden email]]
Im Auftrag von David Schleef
Gesendet: Samstag, 25. Juni 2011 22:49
An: Discussion of the development of and with GStreamer
Betreff: Re: AW: Writing Video and reading in same time

On Sat, Jun 25, 2011 at 08:32:13PM +0200, Stefan Kost wrote:

BGraaf

Bugs closed?

Hi @ all,

are these bugs fixed?
https://bugzilla.gnome.org/show_bug.cgi?id=647940 /
https://bugzilla.gnome.org/show_bug.cgi?id=652037

If yes, are there additional parameters for reading a 'growing up size'
file?

Many thanks
Bernhard

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