Horizontal lines.

[Martin-294]

Hi everyone,

I'm using gstreamer (all the versions used are the current versions on
the webpage) to send the signal of a TV Card (using video4Linux 2) to my
phone (Nokia N95 with wireless) using the encoder H264.

However, there are some horizontal lines on the final stream when there
are movement on the video captured.

These are a couple of links of the problem:
1 - http://img140.imageshack.us/img140/6641/96468663.jpg
2 - http://img140.imageshack.us/my.php?image=27158456.jpg

These images have been taking from the following pipeline (without using
any encoder):

gst-launch-010 v4l2src ! xvimagesink

This means that the problem is not in the encoder or any other element
of the pipeline to encode on H264.

I guess the problem is on the element v4l2src of gstreamer because I've
used the TV card to play the video on tvtime and the result is perfect.

If it's relevant, the sources used on the TV card have been a PS2 (game
and DVD film) and a SONY video camera.

PD: I'm using two different TV cards (one is Pinnacle and the other
Osprey, both using v4l) and two different computers with the same results.

Can anyone help me, please??

Thanks a lot.

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[Edward Hervey]

Hi,

On Tue, 2009-02-24 at 20:02 +0000, Martin wrote:

> Hi everyone,
>
> I'm using gstreamer (all the versions used are the current versions on
> the webpage) to send the signal of a TV Card (using video4Linux 2) to my
> phone (Nokia N95 with wireless) using the encoder H264.
>
> However, there are some horizontal lines on the final stream when there
> are movement on the video captured.
>
> These are a couple of links of the problem:
> 1 - http://img140.imageshack.us/img140/6641/96468663.jpg
> 2 - http://img140.imageshack.us/my.php?image=27158456.jpg
>
> These images have been taking from the following pipeline (without using
> any encoder):
>
> gst-launch-010 v4l2src ! xvimagesink

  Those sources produce interlaced content. If you use a deinterlacer
(like deinterlace, or the better deinterlace2) between v4l2src and your
sink, the result will be much better.

  We should be able now to add interlaced-detection in v4l2src due to
the recent addition of proper interlaced-support API in -base.

    Edward

>
> This means that the problem is not in the encoder or any other element
> of the pipeline to encode on H264.
>
> I guess the problem is on the element v4l2src of gstreamer because I've
> used the TV card to play the video on tvtime and the result is perfect.
>
> If it's relevant, the sources used on the TV card have been a PS2 (game
> and DVD film) and a SONY video camera.
>
> PD: I'm using two different TV cards (one is Pinnacle and the other
> Osprey, both using v4l) and two different computers with the same results.
>
> Can anyone help me, please??
>
> Thanks a lot.
>
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
> -Strategies to boost innovation and cut costs with open source participation
> -Receive a $600 discount off the registration fee with the source code: SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel

------------------------------------------------------------------------------
Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
-Strategies to boost innovation and cut costs with open source participation
-Receive a $600 discount off the registration fee with the source code: SFAD
http://p.sf.net/sfu/XcvMzF8H
_______________________________________________
gstreamer-devel mailing list
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https://lists.sourceforge.net/lists/listinfo/gstreamer-devel