Rsi block access

Efficient data access by accessing individual RSIs.

include/libaec.h.in

@@ -126,6 +126,7 @@ struct aec_stream {
 #define AEC_STREAM_ERROR (-2)
 #define AEC_DATA_ERROR (-3)
 #define AEC_MEM_ERROR (-4)
+#define AEC_RSI_OFFSETS_ERROR (-5)
 
 /************************/
 /* Options for flushing */
@@ -148,11 +149,19 @@ struct aec_stream {
 /* Streaming encoding and decoding functions */
 /*********************************************/
 LIBAEC_DLL_EXPORTED int aec_encode_init(struct aec_stream *strm);
+LIBAEC_DLL_EXPORTED int aec_encode_enable_offsets(struct aec_stream *strm);
+LIBAEC_DLL_EXPORTED int aec_encode_count_offsets(struct aec_stream *strm, size_t *rsi_offsets_count);
+LIBAEC_DLL_EXPORTED int aec_encode_get_offsets(struct aec_stream *strm, size_t *rsi_offsets, size_t rsi_offsets_count);
+LIBAEC_DLL_EXPORTED int aec_buffer_seek(struct aec_stream *strm, size_t offset);
 LIBAEC_DLL_EXPORTED int aec_encode(struct aec_stream *strm, int flush);
 LIBAEC_DLL_EXPORTED int aec_encode_end(struct aec_stream *strm);
 
 LIBAEC_DLL_EXPORTED int aec_decode_init(struct aec_stream *strm);
+LIBAEC_DLL_EXPORTED int aec_decode_enable_offsets(struct aec_stream *strm);
+LIBAEC_DLL_EXPORTED int aec_decode_count_offsets(struct aec_stream *strm, size_t *rsi_offsets_count);
+LIBAEC_DLL_EXPORTED int aec_decode_get_offsets(struct aec_stream *strm, size_t *rsi_offsets, size_t rsi_offsets_count);
 LIBAEC_DLL_EXPORTED int aec_decode(struct aec_stream *strm, int flush);
+LIBAEC_DLL_EXPORTED int aec_decode_range(struct aec_stream *strm, const size_t *rsi_offsets, size_t rsi_offsets_count, size_t pos, size_t size);
 LIBAEC_DLL_EXPORTED int aec_decode_end(struct aec_stream *strm);
 
 /***************************************************************/