FFmpeg/libavcodec/h264dsp.c

/*
 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
 * 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 / AVC / MPEG4 part10 DSP functions.
 * @author Michael Niedermayer <michaelni@gmx.at>
 */

#include <stdint.h>
#include "avcodec.h"
#include "h264dsp.h"

#define BIT_DEPTH 8
#include "h264dsp_internal.h"
#undef BIT_DEPTH

#define BIT_DEPTH 9
#include "h264dsp_internal.h"
#undef BIT_DEPTH

#define BIT_DEPTH 10
#include "h264dsp_internal.h"
#undef BIT_DEPTH

void ff_h264dsp_init(H264DSPContext *c, const int bit_depth)
{
#undef FUNC
#define FUNC(a, depth) a ## _ ## depth ## _c

#define H264_DSP(depth) \
    c->h264_idct_add                   = FUNC(ff_h264_idct_add               , depth);\
    c->h264_idct8_add                  = FUNC(ff_h264_idct8_add              , depth);\
    c->h264_idct_dc_add                = FUNC(ff_h264_idct_dc_add            , depth);\
    c->h264_idct8_dc_add               = FUNC(ff_h264_idct8_dc_add           , depth);\
    c->h264_idct_add16                 = FUNC(ff_h264_idct_add16             , depth);\
    c->h264_idct8_add4                 = FUNC(ff_h264_idct8_add4             , depth);\
    c->h264_idct_add8                  = FUNC(ff_h264_idct_add8              , depth);\
    c->h264_idct_add16intra            = FUNC(ff_h264_idct_add16intra        , depth);\
    c->h264_luma_dc_dequant_idct       = FUNC(ff_h264_luma_dc_dequant_idct   , depth);\
    c->h264_chroma_dc_dequant_idct     = FUNC(ff_h264_chroma_dc_dequant_idct , depth);\
\
    c->weight_h264_pixels_tab[0]       = FUNC(  weight_h264_pixels16x16      , depth);\
    c->weight_h264_pixels_tab[1]       = FUNC(  weight_h264_pixels16x8       , depth);\
    c->weight_h264_pixels_tab[2]       = FUNC(  weight_h264_pixels8x16       , depth);\
    c->weight_h264_pixels_tab[3]       = FUNC(  weight_h264_pixels8x8        , depth);\
    c->weight_h264_pixels_tab[4]       = FUNC(  weight_h264_pixels8x4        , depth);\
    c->weight_h264_pixels_tab[5]       = FUNC(  weight_h264_pixels4x8        , depth);\
    c->weight_h264_pixels_tab[6]       = FUNC(  weight_h264_pixels4x4        , depth);\
    c->weight_h264_pixels_tab[7]       = FUNC(  weight_h264_pixels4x2        , depth);\
    c->weight_h264_pixels_tab[8]       = FUNC(  weight_h264_pixels2x4        , depth);\
    c->weight_h264_pixels_tab[9]       = FUNC(  weight_h264_pixels2x2        , depth);\
    c->biweight_h264_pixels_tab[0]     = FUNC(biweight_h264_pixels16x16      , depth);\
    c->biweight_h264_pixels_tab[1]     = FUNC(biweight_h264_pixels16x8       , depth);\
    c->biweight_h264_pixels_tab[2]     = FUNC(biweight_h264_pixels8x16       , depth);\
    c->biweight_h264_pixels_tab[3]     = FUNC(biweight_h264_pixels8x8        , depth);\
    c->biweight_h264_pixels_tab[4]     = FUNC(biweight_h264_pixels8x4        , depth);\
    c->biweight_h264_pixels_tab[5]     = FUNC(biweight_h264_pixels4x8        , depth);\
    c->biweight_h264_pixels_tab[6]     = FUNC(biweight_h264_pixels4x4        , depth);\
    c->biweight_h264_pixels_tab[7]     = FUNC(biweight_h264_pixels4x2        , depth);\
    c->biweight_h264_pixels_tab[8]     = FUNC(biweight_h264_pixels2x4        , depth);\
    c->biweight_h264_pixels_tab[9]     = FUNC(biweight_h264_pixels2x2        , depth);\
\
    c->h264_v_loop_filter_luma         = FUNC(h264_v_loop_filter_luma        , depth);\
    c->h264_h_loop_filter_luma         = FUNC(h264_h_loop_filter_luma        , depth);\
    c->h264_v_loop_filter_luma_intra   = FUNC(h264_v_loop_filter_luma_intra  , depth);\
    c->h264_h_loop_filter_luma_intra   = FUNC(h264_h_loop_filter_luma_intra  , depth);\
    c->h264_v_loop_filter_chroma       = FUNC(h264_v_loop_filter_chroma      , depth);\
    c->h264_h_loop_filter_chroma       = FUNC(h264_h_loop_filter_chroma      , depth);\
    c->h264_v_loop_filter_chroma_intra = FUNC(h264_v_loop_filter_chroma_intra, depth);\
    c->h264_h_loop_filter_chroma_intra = FUNC(h264_h_loop_filter_chroma_intra, depth);\
    c->h264_loop_filter_strength= NULL;

    switch (bit_depth) {
        case 9:
            H264_DSP(9);
            break;
        case 10:
            H264_DSP(10);
            break;
        default:
            H264_DSP(8);
            break;
    }

    if (ARCH_ARM) ff_h264dsp_init_arm(c, bit_depth);
    if (HAVE_ALTIVEC) ff_h264dsp_init_ppc(c, bit_depth);
    if (HAVE_MMX) ff_h264dsp_init_x86(c, bit_depth);
}