Squashed commit of the following:

commit 5bb012f0065f7ffaaeb4f569d71f0e3a8d6b19c3
Author: Andreas Huber <andih@google.com>
Date:   Fri Aug 14 10:40:08 2009 -0700

    An attempt at fixing export using the qcom encoders. More quirks.

commit 0690e76bfa48118a68287ccf1bbfa82febaa620c
Author: Andreas Huber <andih@google.com>
Date:   Fri Aug 14 09:08:28 2009 -0700

    Callbacks are now dispatched from a separate thread in OMX.

commit c6571a039526df29b6343f9a1971dbc019088c61
Author: Andreas Huber <andih@google.com>
Date:   Thu Aug 13 15:42:25 2009 -0700

    Massive API changes throughout stagefright, smart pointers everywhere.

commit 900612af6a0555664d9ba195112cd859491265f4
Author: Andreas Huber <andih@google.com>
Date:   Thu Aug 13 13:33:12 2009 -0700

    OMXCodecs now properly shutdown.

commit 96732f05e1b0603dcd1b11f16a23512592eeb4f5
Author: Andreas Huber <andih@google.com>
Date:   Thu Aug 13 12:04:04 2009 -0700

    More work on JPEG decoding using the hardware OMX component.

commit 63839a073ac393e3a130434ba467969053b694ad
Author: Andreas Huber <andih@google.com>
Date:   Wed Aug 12 13:13:31 2009 -0700

    An attempt to drive the JPEG decoder OMX node.

commit 3ac2fe5ab2926eda81b2123610b2434c645294ff
Author: Andreas Huber <andih@google.com>
Date:   Tue Aug 11 16:38:21 2009 -0700

    Renamed StateMachine to OMXCodec and put it in its proper place.

commit 247da75a96bf8881956413023dd49a84d5b4f5b2
Author: Andreas Huber <andih@google.com>
Date:   Tue Aug 11 16:06:19 2009 -0700

    Statemachine is now a full-fledged MediaSource.

commit 045244f6771fa0b9b329495c953afda900a84b71
Author: Andreas Huber <andih@google.com>
Date:   Fri Aug 7 09:16:54 2009 -0700

    Properly setup the input format when exporting to AMR audio.

commit 271b984cb32c5cd9e46e3f90ae121f334e4b8da9
Author: Andreas Huber <andih@google.com>
Date:   Thu Aug 6 09:59:38 2009 -0700

    Added some code to test audio encoding to the OMX harness.

commit 79af4748e4af33bd66d3fbac606e332a69741cf4
Author: Andreas Huber <andih@google.com>
Date:   Wed Aug 5 14:36:22 2009 -0700

    Merge the old OMXDecoder and the new, shiny, StateMachine code.

commit 91cf5dd77a8762bc10a0b2ffce35e3bbeb262231
Author: Andreas Huber <andih@google.com>
Date:   Tue Aug 4 17:41:43 2009 -0700

    A new harness to test OMX node compliance (and quirks).
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
index 7e5ff61..58a74c7 100644
--- a/include/media/IOMX.h
+++ b/include/media/IOMX.h
@@ -56,6 +56,14 @@
             node_id node, OMX_INDEXTYPE index,
             const void *params, size_t size) = 0;
 
+    virtual status_t get_config(
+            node_id node, OMX_INDEXTYPE index,
+            void *params, size_t size) = 0;
+
+    virtual status_t set_config(
+            node_id node, OMX_INDEXTYPE index,
+            const void *params, size_t size) = 0;
+
     virtual status_t use_buffer(
             node_id node, OMX_U32 port_index, const sp<IMemory> &params,
             buffer_id *buffer) = 0;
@@ -82,6 +90,11 @@
             OMX_U32 range_offset, OMX_U32 range_length,
             OMX_U32 flags, OMX_TICKS timestamp) = 0;
 
+    virtual status_t get_extension_index(
+            node_id node,
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) = 0;
+
     virtual sp<IOMXRenderer> createRenderer(
             const sp<ISurface> &surface,
             const char *componentName,
@@ -114,10 +127,11 @@
         QUIT_OBSERVER,
     } type;
 
+    IOMX::node_id node;
+
     union {
         // if type == EVENT
         struct {
-            IOMX::node_id node;
             OMX_EVENTTYPE event;
             OMX_U32 data1;
             OMX_U32 data2;
@@ -126,13 +140,11 @@
         // if type == EMPTY_BUFFER_DONE || type == FILL_BUFFER
         //    || type == INITIAL_FILL_BUFFER
         struct {
-            IOMX::node_id node;
             IOMX::buffer_id buffer;
         } buffer_data;
 
         // if type == EMPTY_BUFFER || type == FILL_BUFFER_DONE
         struct {
-            IOMX::node_id node;
             IOMX::buffer_id buffer;
             OMX_U32 range_offset;
             OMX_U32 range_length;
@@ -143,7 +155,6 @@
 
         // if type == SEND_COMMAND
         struct {
-            IOMX::node_id node;
             OMX_COMMANDTYPE cmd;
             OMX_S32 param;
         } send_command_data;