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FFmpeg/libavcodec/h264dsp.h

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  1. /*

  2.  * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>

  3.  *

  4.  * This file is part of FFmpeg.

  5.  *

  6.  * FFmpeg 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.  * FFmpeg 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 FFmpeg; 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. #include "dsputil.h"

  32. 

  33. //typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);

  34. typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);

  35. typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);

  36. 

  37. /**

  38.  * Context for storing H.264 DSP functions

  39.  */

  40. typedef struct H264DSPContext{

  41.     /* weighted MC */

  42.     h264_weight_func weight_h264_pixels_tab[10];

  43.     h264_biweight_func biweight_h264_pixels_tab[10];

  44. 

  45.     /* loop filter */

  46.     void (*h264_v_loop_filter_luma)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta, int8_t *tc0);

  47.     void (*h264_h_loop_filter_luma)(uint8_t *pix/*align 4 */, int stride, int alpha, int beta, int8_t *tc0);

  48.     void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta, int8_t *tc0);

  49.     /* v/h_loop_filter_luma_intra: align 16 */

  50.     void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  51.     void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);

  52.     void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta);

  53.     void (*h264_v_loop_filter_chroma)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta, int8_t *tc0);

  54.     void (*h264_h_loop_filter_chroma)(uint8_t *pix/*align 4*/, int stride, int alpha, int beta, int8_t *tc0);

  55.     void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta, int8_t *tc0);

  56.     void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);

  57.     void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);

  58.     void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);

  59.     // h264_loop_filter_strength: simd only. the C version is inlined in h264.c

  60.     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],

  61.                                       int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field);

  62. 

  63.     /* IDCT */

  64.     void (*h264_idct_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);

  65.     void (*h264_idct8_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);

  66.     void (*h264_idct_dc_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);

  67.     void (*h264_idct8_dc_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);

  68. 

  69.     void (*h264_idct_add16)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[15*8]);

  70.     void (*h264_idct8_add4)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[15*8]);

  71.     void (*h264_idct_add8)(uint8_t **dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[15*8]);

  72.     void (*h264_idct_add16intra)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[15*8]);

  73.     void (*h264_luma_dc_dequant_idct)(DCTELEM *output, DCTELEM *input/*align 16*/, int qmul);

  74.     void (*h264_chroma_dc_dequant_idct)(DCTELEM *block, int qmul);

  75. }H264DSPContext;

  76. 

  77. void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, const int chroma_format_idc);

  78. void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth, const int chroma_format_idc);

  79. void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, const int chroma_format_idc);

  80. void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth, const int chroma_format_idc);

  81. 

  82. #endif /* AVCODEC_H264DSP_H */