[gst-devel] Horizontal lines.

[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.
> 
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