| /* |
| * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * H.264 DSP functions. |
| * @author Michael Niedermayer <michaelni@gmx.at> |
| */ |
| |
| #ifndef AVCODEC_H264DSP_H |
| #define AVCODEC_H264DSP_H |
| |
| #include <stdint.h> |
| |
| typedef void (*h264_weight_func)(uint8_t *block, int stride, int height, |
| int log2_denom, int weight, int offset); |
| typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, |
| int stride, int height, int log2_denom, |
| int weightd, int weights, int offset); |
| |
| /** |
| * Context for storing H.264 DSP functions |
| */ |
| typedef struct H264DSPContext { |
| /* weighted MC */ |
| h264_weight_func weight_h264_pixels_tab[4]; |
| h264_biweight_func biweight_h264_pixels_tab[4]; |
| |
| /* loop filter */ |
| void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride, |
| int alpha, int beta, int8_t *tc0); |
| void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride, |
| int alpha, int beta, int8_t *tc0); |
| void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride, |
| int alpha, int beta, int8_t *tc0); |
| /* v/h_loop_filter_luma_intra: align 16 */ |
| void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, |
| int alpha, int beta); |
| void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, |
| int alpha, int beta); |
| void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/, |
| int stride, int alpha, int beta); |
| void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride, |
| int alpha, int beta, int8_t *tc0); |
| void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride, |
| int alpha, int beta, int8_t *tc0); |
| void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/, |
| int stride, int alpha, int beta, |
| int8_t *tc0); |
| void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, |
| int stride, int alpha, int beta); |
| void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, |
| int stride, int alpha, int beta); |
| void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/, |
| int stride, int alpha, int beta); |
| // h264_loop_filter_strength: simd only. the C version is inlined in h264.c |
| void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], |
| int8_t ref[2][40], int16_t mv[2][40][2], |
| int bidir, int edges, int step, |
| int mask_mv0, int mask_mv1, int field); |
| |
| /* IDCT */ |
| void (*h264_idct_add)(uint8_t *dst /*align 4*/, |
| int16_t *block /*align 16*/, int stride); |
| void (*h264_idct8_add)(uint8_t *dst /*align 8*/, |
| int16_t *block /*align 16*/, int stride); |
| void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/, |
| int16_t *block /*align 16*/, int stride); |
| void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/, |
| int16_t *block /*align 16*/, int stride); |
| |
| void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset, |
| int16_t *block /*align 16*/, int stride, |
| const uint8_t nnzc[15 * 8]); |
| void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset, |
| int16_t *block /*align 16*/, int stride, |
| const uint8_t nnzc[15 * 8]); |
| void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset, |
| int16_t *block /*align 16*/, int stride, |
| const uint8_t nnzc[15 * 8]); |
| void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset, |
| int16_t *block /*align 16*/, |
| int stride, const uint8_t nnzc[15 * 8]); |
| void (*h264_luma_dc_dequant_idct)(int16_t *output, |
| int16_t *input /*align 16*/, int qmul); |
| void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul); |
| |
| /* bypass-transform */ |
| void (*h264_add_pixels8_clear)(uint8_t *dst, int16_t *block, int stride); |
| void (*h264_add_pixels4_clear)(uint8_t *dst, int16_t *block, int stride); |
| |
| /** |
| * Search buf from the start for up to size bytes. Return the index |
| * of a zero byte, or >= size if not found. Ideally, use lookahead |
| * to filter out any zero bytes that are known to not be followed by |
| * one or more further zero bytes and a one byte. Better still, filter |
| * out any bytes that form the trailing_zero_8bits syntax element too. |
| */ |
| int (*startcode_find_candidate)(const uint8_t *buf, int size); |
| } H264DSPContext; |
| |
| void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| void ff_h264dsp_init_mips(H264DSPContext *c, const int bit_depth, |
| const int chroma_format_idc); |
| |
| #endif /* AVCODEC_H264DSP_H */ |
