93 lines
4.3 KiB
C
93 lines
4.3 KiB
C
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/*
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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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