Merge change I91eb0354 into eclair-mr2

* changes:
  Change OMXCodec::Create to return an sp<MediaSource> instead of an sp<OMXCodec>, this is more general and does not sacrifice any functionality as the remaining OMXCodec APIs are not meant to be public anyway.

cmds/stagefright/audioloop.cpp

@@ -38,12 +38,12 @@ int main() {
         meta->setInt32(kKeyMaxInputSize, maxInputSize);
     }
 
-    sp<OMXCodec> encoder = OMXCodec::Create(
+    sp<MediaSource> encoder = OMXCodec::Create(
             client.interface(),
             meta, true /* createEncoder */,
             source);
 
-    sp<OMXCodec> decoder = OMXCodec::Create(
+    sp<MediaSource> decoder = OMXCodec::Create(
             client.interface(),
             meta, false /* createEncoder */,
             encoder);

cmds/stagefright/record.cpp

@@ -154,7 +154,7 @@ int main(int argc, char **argv) {
 
     sp<MetaData> meta = source->getFormat();
 
-    sp<OMXCodec> decoder = OMXCodec::Create(
+    sp<MediaSource> decoder = OMXCodec::Create(
             client.interface(), meta, false /* createEncoder */, source);
 
     int width, height;
@@ -173,7 +173,7 @@ int main(int argc, char **argv) {
     enc_meta->setInt32(kKeyWidth, width);
     enc_meta->setInt32(kKeyHeight, height);
 
-    sp<OMXCodec> encoder =
+    sp<MediaSource> encoder =
         OMXCodec::Create(
                 client.interface(), enc_meta, true /* createEncoder */, decoder);
 

include/media/stagefright/OMXCodec.h

@@ -33,7 +33,7 @@ struct OMXCodec : public MediaSource,
     enum CreationFlags {
         kPreferSoftwareCodecs = 1,
     };
-    static sp<OMXCodec> Create(
+    static sp<MediaSource> Create(
             const sp<IOMX> &omx,
             const sp<MetaData> &meta, bool createEncoder,
             const sp<MediaSource> &source,

media/libstagefright/OMXCodec.cpp

@@ -274,7 +274,7 @@ void OMXCodec::findMatchingCodecs(
 }
 
 // static
-sp<OMXCodec> OMXCodec::Create(
+sp<MediaSource> OMXCodec::Create(
         const sp<IOMX> &omx,
         const sp<MetaData> &meta, bool createEncoder,
         const sp<MediaSource> &source,