initial commit, 4.5 stable

thirdparty/libtheora/enquant.h

@@ -0,0 +1,26 @@
+#if !defined(_enquant_H)
+# define _enquant_H (1)
+# include "quant.h"
+
+typedef struct oc_iquant oc_iquant;
+
+#define OC_QUANT_MAX_LOG (OC_Q57(OC_STATIC_ILOG_32(OC_QUANT_MAX)-1))
+
+/*Used to compute x/d via ((x*m>>16)+x>>l)+(x<0))
+   (i.e., one 16x16->16 mul, 2 shifts, and 2 adds).
+  This is not an approximation; for 16-bit x and d, it is exact.*/
+struct oc_iquant{
+  ogg_int16_t m;
+  ogg_int16_t l;
+};
+
+
+
+int oc_quant_params_clone(th_quant_info *_dst,const th_quant_info *_src);
+void oc_quant_params_pack(oggpack_buffer *_opb,const th_quant_info *_qinfo);
+void oc_iquant_init(oc_iquant *_this,ogg_uint16_t _d);
+void oc_enquant_qavg_init(ogg_int64_t _log_qavg[2][64],
+ ogg_int16_t _log_plq[64][3][2],ogg_uint16_t _pl_rd_scale[2][64][2],
+ ogg_uint16_t *_dequant[64][3][2],int _pixel_fmt);
+
+#endif