Deployment of GStreamer app on Test Machine

[Sebastian Dröge]

On Mo, 2014-05-19 at 15:13 +0900, Lasse Laursen wrote:
> Hey folks,
> 
> Now that I'm trying to recover from willpower fatigue, I was hoping 
> someone with a little know how could help me out with my predicament.
> 
> I am trying to deploy my pretty shaky/unstable app from my developing 
> machine, to my other private test machine. The goal is to be able to 
> distribute a zip file containing all the necessary files to a few close 
> friends and have them run my app for various testing purposes.
> 
> My application unfortunately doesn't quite work fully on my test 
> machine. I'm using Vs2013 and am remote debugging the app on my test 
> machine. This made pinpointing the issue quite easy, which is that my 
> call to 'gst_parse_launch' returns a void pointer and tells me that 
> there is no element "uridecodebin".
> 
> I should note at this point, that I simply copied the SDK directly from 
> my dev machine and set up the necessary environment variables - thinking 
> along the lines of "let's take it all, and then trim it down to what my 
> app really seems to need". It should be noted that everything works fine 
> on my development machine, and to my bigger surprise it *also* works on 
> my second test machine when launching the string via the 
> gst-launch-1.0.exe file.
> 
> The string is as follows:
> 
> gst-launch-1.0.exe uridecodebin uri=file:///D:/PMP/vids/cosmos.webm ! 
> videorate ! video/x-raw,framerate=30/1 ! videoconvert ! videoscale ! 
> appsink name=sink caps=\"video/x-raw,format=RGB,pixel-aspect-ratio=1/1"
> 
> appsink is replaced with 'audiovideosink' when I run it from the command 
> line - but as I previously stated, the original string runs fine on my 
> dev machine. I've also run the gst-inspect tool on my 2nd machine for 
> appsink which it seems to find without a hitch.
> 
> Does anybody have an idea to what I'm missing? What could cause 
> gstreamer to seemingly work fine on the command line, as well as in the 
> application on my dev machine, but not on my 2nd machine?

Usually gst_parse_launch() returns NULL if plugins are missing. You
should see that from the GError parameter, and also if you run your
application with GST_DEBUG=6 to get all the debug output.

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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