975a1a81b2
The overlap filter is not correct for vertical edges in frame interlaced I and P pictures. When filtering macroblocks with different FIELDTX values, we have to match the lines at both sides of the vertical border. In addition, we have to use the correct rounding values, depending on the line we are filtering. Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
93 lines
4.3 KiB
C
93 lines
4.3 KiB
C
/*
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* VC-1 and WMV3 decoder - DSP functions
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* Copyright (c) 2006 Konstantin Shishkov
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* VC-1 and WMV3 decoder
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*/
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#ifndef AVCODEC_VC1DSP_H
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#define AVCODEC_VC1DSP_H
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#include "hpeldsp.h"
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#include "h264chroma.h"
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typedef void (*vc1op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, ptrdiff_t line_size, int h);
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typedef struct VC1DSPContext {
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/* vc1 functions */
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void (*vc1_inv_trans_8x8)(int16_t *b);
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void (*vc1_inv_trans_8x4)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_4x8)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_4x4)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_8x8_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_8x4_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_4x8_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_inv_trans_4x4_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
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void (*vc1_v_overlap)(uint8_t *src, int stride);
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void (*vc1_h_overlap)(uint8_t *src, int stride);
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void (*vc1_v_s_overlap)(int16_t *top, int16_t *bottom);
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void (*vc1_h_s_overlap)(int16_t *left, int16_t *right, int left_stride, int right_stride, int flags);
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void (*vc1_v_loop_filter4)(uint8_t *src, int stride, int pq);
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void (*vc1_h_loop_filter4)(uint8_t *src, int stride, int pq);
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void (*vc1_v_loop_filter8)(uint8_t *src, int stride, int pq);
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void (*vc1_h_loop_filter8)(uint8_t *src, int stride, int pq);
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void (*vc1_v_loop_filter16)(uint8_t *src, int stride, int pq);
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void (*vc1_h_loop_filter16)(uint8_t *src, int stride, int pq);
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/* put 8x8 block with bicubic interpolation and quarterpel precision
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* last argument is actually round value instead of height
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*/
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vc1op_pixels_func put_vc1_mspel_pixels_tab[2][16];
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vc1op_pixels_func avg_vc1_mspel_pixels_tab[2][16];
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/* This is really one func used in VC-1 decoding */
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h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3];
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h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3];
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/* Windows Media Image functions */
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void (*sprite_h)(uint8_t *dst, const uint8_t *src, int offset, int advance, int count);
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void (*sprite_v_single)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width);
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void (*sprite_v_double_noscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width);
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void (*sprite_v_double_onescale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
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const uint8_t *src2a, int alpha, int width);
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void (*sprite_v_double_twoscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
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const uint8_t *src2a, const uint8_t *src2b, int offset2,
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int alpha, int width);
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/**
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* Search buf from the start for up to size bytes. Return the index
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* of a zero byte, or >= size if not found. Ideally, use lookahead
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* to filter out any zero bytes that are known to not be followed by
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* one or more further zero bytes and a one byte.
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*/
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int (*startcode_find_candidate)(const uint8_t *buf, int size);
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} VC1DSPContext;
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void ff_vc1dsp_init(VC1DSPContext* c);
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void ff_vc1dsp_init_aarch64(VC1DSPContext* dsp);
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void ff_vc1dsp_init_arm(VC1DSPContext* dsp);
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void ff_vc1dsp_init_ppc(VC1DSPContext *c);
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void ff_vc1dsp_init_x86(VC1DSPContext* dsp);
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void ff_vc1dsp_init_mips(VC1DSPContext* dsp);
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#endif /* AVCODEC_VC1DSP_H */
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