aspectratiocrop, videocrop and videobox is not available on iOS

[Sebastian Dröge]

On Mo, 2015-09-14 at 08:31 -0700, nmrony wrote:
> Hi all, We are using gstreamer 1.5.0.1 on iOS 8.4.1.

Please use the latest version if you're using development releases
anyway, at this time 1.5.90.

>  We are trying to crop a stream from 640x480 to 640x360 as follows 
> 
> avfvideosrc ! video/x-raw,width=640,height=480,framerate=30/1 !
> aspectratiocrop aspect-ratio=16/9 ! tee name=tp tp. ! queue !
> videoconvert ! autovideosink
> 
> But GStreamer throws following error
> 
> Unable to build pipeline: no element "aspectratiocrop" 
> 
> We have applyed videocrop and videobox in same pipeline and got same
> error message respectively. Is these elements has ported to iOS
> 8.4.1? If it is not ported is there any way to get pipeline working
> using any of these element? 

These elements are ported to iOS and available on iOS. You just have to
link them into your application. For that you have to #define
  GST_IOS_PLUGINS_EFFECTS
or
  GST_IOS_PLUGIN_VIDEOBOX
and
  GST_IOS_PLUGIN_VIDEOCROP

in your gst_ios_init.h

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com

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