android media framework 1

1.mfw has a graph
2.graph has nodes
3.nodes are source or sink they are encoder,decoder,parser,modifier
4.source or sink are software or hardware
5.frame comes from source and goes into sink
6.frames are put into command queue of each node
7.each hw/sw node has upper edge OMX interface
8.a node is a .so
9.init is done using .cfg files
10. .so contains cfg i/f, omx wrapper,
11. every .so contains player engine, player driver invoke this engine

12.fw searches ./system/etc/01_Vendor_ti_omx.cfg for hw codec
not found uses SW codecs from PVOMX components (picked up by ./system/etc/pvplayer.cfg)
You can disable Hardware acceleration by editing this file: platform/vendor/ti/zoom2/BoardConfig.mk
take a look at the supported OMX roles (tComponentName): platform/hardware/ti/omx/system/src/openmax_il/omx_core/src/OMX_core.c

13.hardware codec === hardware accelerators
14.they are different from display accelerators