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Diffstat (limited to 'media/libvpx/vp8/common/loopfilter.h')
-rw-r--r-- | media/libvpx/vp8/common/loopfilter.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/loopfilter.h b/media/libvpx/vp8/common/loopfilter.h new file mode 100644 index 000000000..20a6bd375 --- /dev/null +++ b/media/libvpx/vp8/common/loopfilter.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +#ifndef VP8_COMMON_LOOPFILTER_H_ +#define VP8_COMMON_LOOPFILTER_H_ + +#include "vpx_ports/mem.h" +#include "vpx_config.h" +#include "vp8_rtcd.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAX_LOOP_FILTER 63 +/* fraction of total macroblock rows to be used in fast filter level picking */ +/* has to be > 2 */ +#define PARTIAL_FRAME_FRACTION 8 + +typedef enum +{ + NORMAL_LOOPFILTER = 0, + SIMPLE_LOOPFILTER = 1 +} LOOPFILTERTYPE; + +#if ARCH_ARM +#define SIMD_WIDTH 1 +#else +#define SIMD_WIDTH 16 +#endif + +/* Need to align this structure so when it is declared and + * passed it can be loaded into vector registers. + */ +typedef struct +{ + DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, mblim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); + DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, blim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); + DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, lim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); + DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, hev_thr[4][SIMD_WIDTH]); + unsigned char lvl[4][4][4]; + unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1]; + unsigned char mode_lf_lut[10]; +} loop_filter_info_n; + +typedef struct loop_filter_info +{ + const unsigned char * mblim; + const unsigned char * blim; + const unsigned char * lim; + const unsigned char * hev_thr; +} loop_filter_info; + + +typedef void loop_filter_uvfunction +( + unsigned char *u, /* source pointer */ + int p, /* pitch */ + const unsigned char *blimit, + const unsigned char *limit, + const unsigned char *thresh, + unsigned char *v +); + +/* assorted loopfilter functions which get used elsewhere */ +struct VP8Common; +struct macroblockd; +struct modeinfo; + +void vp8_loop_filter_init(struct VP8Common *cm); + +void vp8_loop_filter_frame_init(struct VP8Common *cm, + struct macroblockd *mbd, + int default_filt_lvl); + +void vp8_loop_filter_frame(struct VP8Common *cm, struct macroblockd *mbd, + int frame_type); + +void vp8_loop_filter_partial_frame(struct VP8Common *cm, + struct macroblockd *mbd, + int default_filt_lvl); + +void vp8_loop_filter_frame_yonly(struct VP8Common *cm, + struct macroblockd *mbd, + int default_filt_lvl); + +void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi, + int sharpness_lvl); + +void vp8_loop_filter_row_normal(struct VP8Common *cm, + struct modeinfo *mode_info_context, + int mb_row, int post_ystride, int post_uvstride, + unsigned char *y_ptr, unsigned char *u_ptr, + unsigned char *v_ptr); + +void vp8_loop_filter_row_simple(struct VP8Common *cm, + struct modeinfo *mode_info_context, + int mb_row, int post_ystride, int post_uvstride, + unsigned char *y_ptr, unsigned char *u_ptr, + unsigned char *v_ptr); +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VP8_COMMON_LOOPFILTER_H_ |