For Linaro project I working on a new implementation of gst-openmax to allow zero copy between OMX element in gstreamer.
On this page: https://wiki.linaro.org/WorkingGroups/Middleware/Multimedia/Specs/1105/ConsolidateGtsOmxMultivendor
I have put sequence diagrams of what we want to achieve.
We are looking for feedbacks about this proposal and all comment are welcome.