How to set transparency

[Holger Kaelberer]

On 04/04/2012 10:14 AM, kususe wrote:
> yet done, but still nothing.

This is what works for me:

gst-launch-0.10 filesrc location=1.png ! pngdec ! imagefreeze ! ffmpegcolorspace ! videomixer 
name=mix sink_1::alpha=0.7 ! ffmpegcolorspace ! xvimagesink filesrc 
location=A_Digital_Media_Primer_For_Geeks-480p.webm ! matroskademux ! vp8dec ! ffmpegcolorspace ! mix.

Holger