diff options
Diffstat (limited to 'libvpx/vp9/common/vp9_filter.h')
| -rw-r--r-- | libvpx/vp9/common/vp9_filter.h | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/libvpx/vp9/common/vp9_filter.h b/libvpx/vp9/common/vp9_filter.h index 7b1ffae..b1e7e64 100644 --- a/libvpx/vp9/common/vp9_filter.h +++ b/libvpx/vp9/common/vp9_filter.h @@ -11,19 +11,37 @@ #ifndef VP9_COMMON_VP9_FILTER_H_ #define VP9_COMMON_VP9_FILTER_H_ -#include "vpx_config.h" +#include "./vpx_config.h" #include "vpx/vpx_integer.h" +#define FILTER_BITS 7 + #define SUBPEL_BITS 4 #define SUBPEL_MASK ((1 << SUBPEL_BITS) - 1) #define SUBPEL_SHIFTS (1 << SUBPEL_BITS) #define SUBPEL_TAPS 8 -extern const int16_t vp9_bilinear_filters[SUBPEL_SHIFTS][SUBPEL_TAPS]; -extern const int16_t vp9_sub_pel_filters_6[SUBPEL_SHIFTS][SUBPEL_TAPS]; -extern const int16_t vp9_sub_pel_filters_8[SUBPEL_SHIFTS][SUBPEL_TAPS]; -extern const int16_t vp9_sub_pel_filters_8s[SUBPEL_SHIFTS][SUBPEL_TAPS]; -extern const int16_t vp9_sub_pel_filters_8lp[SUBPEL_SHIFTS][SUBPEL_TAPS]; +typedef enum { + EIGHTTAP = 0, + EIGHTTAP_SMOOTH = 1, + EIGHTTAP_SHARP = 2, + BILINEAR = 3, + SWITCHABLE = 4 /* should be the last one */ +} INTERPOLATION_TYPE; + +typedef int16_t subpel_kernel[SUBPEL_TAPS]; + +struct subpix_fn_table { + const subpel_kernel *filter_x; + const subpel_kernel *filter_y; +}; + +const subpel_kernel *vp9_get_filter_kernel(INTERPOLATION_TYPE type); + +extern const subpel_kernel vp9_bilinear_filters[SUBPEL_SHIFTS]; +extern const subpel_kernel vp9_sub_pel_filters_8[SUBPEL_SHIFTS]; +extern const subpel_kernel vp9_sub_pel_filters_8s[SUBPEL_SHIFTS]; +extern const subpel_kernel vp9_sub_pel_filters_8lp[SUBPEL_SHIFTS]; // The VP9_BILINEAR_FILTERS_2TAP macro returns a pointer to the bilinear // filter kernel as a 2 tap filter. |