mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 lines
6.4 KiB
128 lines
6.4 KiB
/* |
|
* Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at> |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav 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. |
|
* |
|
* Libav 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 Libav; 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 (*h264_find_start_code_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_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); |
|
|
|
#endif /* AVCODEC_H264DSP_H */
|
|
|