Add basic metadata retrieval support for midi, ogg, etc.
Bug 2050320
diff --git a/include/media/MediaMetadataRetrieverInterface.h b/include/media/MediaMetadataRetrieverInterface.h
index b178836..e228357 100644
--- a/include/media/MediaMetadataRetrieverInterface.h
+++ b/include/media/MediaMetadataRetrieverInterface.h
@@ -44,6 +44,28 @@
{
public:
virtual ~MediaMetadataRetrieverInterface() {}
+
+ // @param mode The intended mode of operations:
+ // can be any of the following:
+ // METADATA_MODE_NOOP: Experimental - just add and remove data source.
+ // METADATA_MODE_FRAME_CAPTURE_ONLY: For capture frame/thumbnail only.
+ // METADATA_MODE_METADATA_RETRIEVAL_ONLY: For meta data retrieval only.
+ // METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL: For both frame
+ // capture and meta data retrieval.
+ virtual status_t setMode(int mode) {
+ if (mode < METADATA_MODE_NOOP ||
+ mode > METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL) {
+ return BAD_VALUE;
+ }
+ return NO_ERROR;
+ }
+
+ virtual status_t getMode(int* mode) const { *mode = mMode; return NO_ERROR; }
+ virtual VideoFrame* captureFrame() { return NULL; }
+ virtual MediaAlbumArt* extractAlbumArt() { return NULL; }
+ virtual const char* extractMetadata(int keyCode) { return NULL; }
+
+ uint32_t mMode;
};
}; // namespace android
diff --git a/include/media/mediametadataretriever.h b/include/media/mediametadataretriever.h
index 9ea2775..cfc205c 100644
--- a/include/media/mediametadataretriever.h
+++ b/include/media/mediametadataretriever.h
@@ -56,6 +56,18 @@
// Add more here...
};
+// The intended mode of operations:$
+// METADATA_MODE_NOOP: Experimental - just add and remove data source.$
+// METADATA_MODE_FRAME_CAPTURE_ONLY: For capture frame/thumbnail only.$
+// METADATA_MODE_METADATA_RETRIEVAL_ONLY: For meta data retrieval only.$
+// METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL: For both frame capture
+// and meta data retrieval.$
+enum {
+ METADATA_MODE_NOOP = 0x00,
+ METADATA_MODE_FRAME_CAPTURE_ONLY = 0x01,
+ METADATA_MODE_METADATA_RETRIEVAL_ONLY = 0x02,
+ METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL = 0x03
+};
class MediaMetadataRetriever: public RefBase
{