libavcodec/h264dsp.h

   1 /*
   2  * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of Libav.
   5  *
   6  * Libav is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * Libav is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with Libav; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 /**
  22  * @file
  23  * H.264 DSP functions.
  24  * @author Michael Niedermayer <michaelni@gmx.at>
  25  */
  26
  27 #ifndef AVCODEC_H264DSP_H
  28 #define AVCODEC_H264DSP_H
  29
  30 #include <stdint.h>
  31
  32 typedef void (*h264_weight_func)(uint8_t *block, int stride, int height,
  33                                  int log2_denom, int weight, int offset);
  34 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src,
  35                                    int stride, int height, int log2_denom,
  36                                    int weightd, int weights, int offset);
  37
  38 /**
  39  * Context for storing H.264 DSP functions
  40  */
  41 typedef struct H264DSPContext {
  42     /* weighted MC */
  43     h264_weight_func weight_h264_pixels_tab[4];
  44     h264_biweight_func biweight_h264_pixels_tab[4];
  45
  46     /* loop filter */
  47     void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride,
  48                                     int alpha, int beta, int8_t *tc0);
  49     void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride,
  50                                     int alpha, int beta, int8_t *tc0);
  51     void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride,
  52                                           int alpha, int beta, int8_t *tc0);
  53     /* v/h_loop_filter_luma_intra: align 16 */
  54     void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride,
  55                                           int alpha, int beta);
  56     void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride,
  57                                           int alpha, int beta);
  58     void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/,
  59                                                 int stride, int alpha, int beta);
  60     void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride,
  61                                       int alpha, int beta, int8_t *tc0);
  62     void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride,
  63                                       int alpha, int beta, int8_t *tc0);
  64     void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/,
  65                                             int stride, int alpha, int beta,
  66                                             int8_t *tc0);
  67     void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
  68                                             int stride, int alpha, int beta);
  69     void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
  70                                             int stride, int alpha, int beta);
  71     void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/,
  72                                                   int stride, int alpha, int beta);
  73     // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
  74     void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40],
  75                                       int8_t ref[2][40], int16_t mv[2][40][2],
  76                                       int bidir, int edges, int step,
  77                                       int mask_mv0, int mask_mv1, int field);
  78
  79     /* IDCT */
  80     void (*h264_idct_add)(uint8_t *dst /*align 4*/,
  81                           int16_t *block /*align 16*/, int stride);
  82     void (*h264_idct8_add)(uint8_t *dst /*align 8*/,
  83                            int16_t *block /*align 16*/, int stride);
  84     void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/,
  85                              int16_t *block /*align 16*/, int stride);
  86     void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/,
  87                               int16_t *block /*align 16*/, int stride);
  88
  89     void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset,
  90                             int16_t *block /*align 16*/, int stride,
  91                             const uint8_t nnzc[15 * 8]);
  92     void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset,
  93                             int16_t *block /*align 16*/, int stride,
  94                             const uint8_t nnzc[15 * 8]);
  95     void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset,
  96                            int16_t *block /*align 16*/, int stride,
  97                            const uint8_t nnzc[15 * 8]);
  98     void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset,
  99                                  int16_t *block /*align 16*/,
 100                                  int stride, const uint8_t nnzc[15 * 8]);
 101     void (*h264_luma_dc_dequant_idct)(int16_t *output,
 102                                       int16_t *input /*align 16*/, int qmul);
 103     void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul);
 104 } H264DSPContext;
 105
 106 void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
 107                      const int chroma_format_idc);
 108 void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
 109                          const int chroma_format_idc);
 110 void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth,
 111                          const int chroma_format_idc);
 112 void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
 113                          const int chroma_format_idc);
 114
 115 #endif /* AVCODEC_H264DSP_H */