Mercurial > hg > audiodb
changeset 295:9347d74a2578
added cap on number of vectors per track to index: this cap is set relative to the maximum pointID available in the dual <trackID,pointID> indexing scheme that is used to identify points and tracks using a single 32-bit unsigned integer that is passed to lshlib.
| author | mas01mc |
|---|---|
| date | Thu, 31 Jul 2008 19:26:04 +0000 |
| parents | 071a108580a4 |
| children | f922c234462f |
| files | audioDB.h |
| diffstat | 1 files changed, 7 insertions(+), 6 deletions(-) [+] |
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--- a/audioDB.h Wed Jul 30 18:00:50 2008 +0000 +++ b/audioDB.h Thu Jul 31 19:26:04 2008 +0000 @@ -67,6 +67,12 @@ //#define O2_DEFAULTDBSIZE (4000000000) // 4GB table size #define O2_DEFAULTDBSIZE (2000000000) // 2GB table size +// Bit masks for packing (trackID,pointID) into 32-bit unsigned int +#define LSH_N_POINT_BITS 14 +#define LSH_TRACK_MASK 0xFFFFC000U // 2^18 = 262144 tracks +#define LSH_POINT_MASK 0x00003FFFU // 2^14 = 16384 points per track + +// LIMIT PARAMETERS #define O2_DEFAULT_DATASIZE (1355U) // in MB #define O2_DEFAULT_NTRACKS (20000U) #define O2_DEFAULT_DATADIM (9U) @@ -81,7 +87,7 @@ #define O2_MAXNN (1000000U) #define O2_MAXSEQLEN (8000U) // maximum feature vectors in a sequence #define O2_MAXTRACKS (10000U) // maximum number of tracks -#define O2_MAXTRACKLEN (1000000U) // maximum shingles in a track +#define O2_MAXTRACKLEN ((LSH_POINT_MASK+1)) // maximum shingles in a track #define O2_MAXDOTPRODUCTMEMORY (sizeof(O2_REALTYPE)*O2_MAXSEQLEN*O2_MAXSEQLEN) // 512MB #define O2_DISTANCE_TOLERANCE (1e-6) #define O2_SERIAL_MAX_TRACKBATCH (10000) @@ -99,11 +105,6 @@ #define O2_N_SEQUENCE_QUERY (0x20U) #define O2_ONE_TO_ONE_N_SEQUENCE_QUERY (0x40U) -// Bit masks for packing (trackID,pointID) into 32-bit unsigned int -#define LSH_N_POINT_BITS 14 -#define LSH_TRACK_MASK 0xFFFFC000 // 2^18 = 262144 tracks -#define LSH_POINT_MASK 0x00003FFF // 2^14 = 16384 points per track - // Error Codes #define O2_ERR_KEYNOTFOUND (0xFFFFFF00)