Gstreamer command line quotes within quotes need help

[Thomas Bond]

Hello,


How do I use quotes in quotes for gstreamer command line. This is 
gstreamer version 1.14.4 and ubuntu version 4.9.140-tegra using bash 
shell all running on Jetson Nano dev system.

I tried various escape methods and none worked.

The following has double quotes with quotes inside the sink definition 
and doesn't work.

gst-launch-1.0 playbin uri=file:///home/tom/Videos/UHD_demo_Nature.mp4 
sink="glupload ! glshader fragment="\"|ca t testfrag.frag|\"" ! 
glimagesinkelement"

I assume it's an escape sequence issue, I tried bunch of ways to escape 
but I would rather not bias anyone looking at this problem. The opengl 
fragment is correct and works using a simple command line example:

gst-launch-1.0 videotestsrc ! glupload ! glshader fragment="\"|cat 
testfrag.frag|\"" ! glimagesink

Any ideas is this a command shell issue or gstreamer issue I need to 
correct concerning double quotes.

Here is the fragment:

#version 100

#ifdef GL_ES

precision mediump float;

#endif

varying vec2 v_texcoord;

uniform sampler2D tex;

uniform float time;

uniform float width;

uniform float height; vec4 myColor;

void main () {

|myColor = texture2D( tex, v_texcoord ); gl_FragColor = myColor; 
gl_FragColor.r = myColor.b; gl_FragColor.b = myColor.r; |

}

When I run the command line I get the following error: WARNING: 
erroneous pipeline: no element "100"


Thanks in advance.


     Tom

-- 
TOM BOND
Vice President, Technology
14 Old French Road
Honeoye Falls, NY 14472
Phone: 585-869-9243
Mobile: 585-662-8956
Email: tom.bond at entexpinc.com

Corporate Headquarters
Entertainment Experience LLC
9475 Double R Blvd. Suite 9
Reno, Nevada 89521
Websites: www.eecolor.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190808/272bd80a/attachment-0001.html>