[gst-devel] Black-and-white output

[Louis-Simon Houde]

Thanks for you reply,

Finally, I managed to find a solution, not the least invasive though : I switched from Ubuntu 10.04 to 9.10. And now, with the same command, the color is showing. Because I'm on Amazon EC2, I can switch server pretty quickly. So, on 8.04, it was freezing at "System Clock" step, on 10.04 no color and fine on 9.10 and 9.04. So I guess it is an Ubuntu Issue ? Or the 9.04 and 9.10 versions are more forgiving.

Here is the big command :

gst-launch-0.10 -v input1. ! queue ! decodebin2 ! videoscale ! video/x-raw-yuv,width=320,height=240 ! videobox right=-340 ! ffmpegcolorspace ! vmix.sink_0 input2. ! queue ! decodebin2 ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv,width=320,height=240 ! vmix.sink_1 vmix. ! ffmpegcolorspace ! ffenc_flv ! ffmux_flv ! filesink location='/mnt/data/home/karaoke/www/karaoke/output/test.flv' filesrc name='input1' location=/mnt/data/home/karaoke/smartfox/SFS_PRO_1.6.6/Server/RedBox/webapps/SFS_RedBox/streams/SmartVideoClipPlayer_IronMan.flv filesrc name='input2' location=/mnt/data/home/karaoke/smartfox/SFS_PRO_1.6.6/Server/RedBox/webapps/SFS_RedBox/streams/SmartVideoClipPlayer_TheDarkKnight.flv videomixer name=vmix background=black sink_0::xpos=0 sink_0::ypos=0 sink_0::zorder=0 sink_1::xpos=340 sink_1::ypos=0 sink_1::zorder=1

The point of this command I think is to show two different movie in one stream. But I must say I just copied the line from our media expert :)
Thanks !

Date: Sat, 15 May 2010 09:44:04 +0300
From: gibrovacco at gmail.com
To: gstreamer-devel at lists.sourceforge.net
Subject: Re: [gst-devel] Black-and-white output

Hi,

On Wed, May 12, 2010 at 7:11 PM, Louis-Simon Houde <houdelou at hotmail.com> wrote:






Hello,

The question might sound completely silly for you but does gstreamer needs a video card to generate video output on command line with its gst-launch command ?

it shouldn't matter as long as you're not rendering the output on the card itself.. can you please post the gst-launch command you're using?


Regards
 
I'm asking this question because we use gst-launch to generate video output. On one of the server, with identical command, the output is black-and-white. One of the server doesn't have any video card because it is hosted on Amazon EC2.


Ubuntu versions are different also so it might be another cue. But it is the same gstreamer version on both servers.

Thanks
 		 	   		  
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