frame.c 25.3 KB
Newer Older
Laurent Aimar's avatar
Laurent Aimar committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
/*****************************************************************************
 * frame.c: h264 encoder library
 *****************************************************************************
 * Copyright (C) 2003 Laurent Aimar
 * $Id: frame.c,v 1.1 2004/06/03 19:27:06 fenrir Exp $
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "common.h"

x264_frame_t *x264_frame_new( x264_t *h )
{
    x264_frame_t   *frame = x264_malloc( sizeof( x264_frame_t ) );
    int i;

35
    int i_mb_count = h->mb.i_mb_count;
Laurent Aimar's avatar
Laurent Aimar committed
36 37 38
    int i_stride;
    int i_lines;

39 40
    memset( frame, 0, sizeof(x264_frame_t) );

Laurent Aimar's avatar
Laurent Aimar committed
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
    /* allocate frame data (+64 for extra data for me) */
    i_stride = ( ( h->param.i_width  + 15 )&0xfffff0 )+ 64;
    i_lines  = ( ( h->param.i_height + 15 )&0xfffff0 );

    frame->i_plane = 3;
    for( i = 0; i < 3; i++ )
    {
        int i_divh = 1;
        int i_divw = 1;
        if( i > 0 )
        {
            if( h->param.i_csp == X264_CSP_I420 )
                i_divh = i_divw = 2;
            else if( h->param.i_csp == X264_CSP_I422 )
                i_divw = 2;
        }
        frame->i_stride[i] = i_stride / i_divw;
        frame->i_lines[i] = i_lines / i_divh;
        frame->buffer[i] = x264_malloc( frame->i_stride[i] *
                                        ( frame->i_lines[i] + 64 / i_divh ) );

        frame->plane[i] = ((uint8_t*)frame->buffer[i]) +
                          frame->i_stride[i] * 32 / i_divh + 32 / i_divw;
    }
    frame->i_stride[3] = 0;
    frame->i_lines[3] = 0;
    frame->buffer[3] = NULL;
    frame->plane[3] = NULL;

70 71 72 73 74 75 76
    frame->filtered[0] = frame->plane[0];
    for( i = 0; i < 3; i++ )
    {
        frame->buffer[4+i] = x264_malloc( frame->i_stride[0] *
                                        ( frame->i_lines[0] + 64 ) );

        frame->filtered[i+1] = ((uint8_t*)frame->buffer[4+i]) +
77
                                frame->i_stride[0] * 32 + 32;
78 79
    }

80
    if( h->frames.b_have_lowres )
81
    {
82 83 84 85 86 87 88 89 90
        frame->i_stride_lowres = frame->i_stride[0]/2 + 32;
        frame->i_lines_lowres = frame->i_lines[0]/2;
        for( i = 0; i < 4; i++ )
        {
            frame->buffer[7+i] = x264_malloc( frame->i_stride_lowres *
                                            ( frame->i_lines[0]/2 + 64 ) );
            frame->lowres[i] = ((uint8_t*)frame->buffer[7+i]) +
                                frame->i_stride_lowres * 32 + 32;
        }
91
    }
92

Laurent Aimar's avatar
Laurent Aimar committed
93 94 95
    frame->i_poc = -1;
    frame->i_type = X264_TYPE_AUTO;
    frame->i_qpplus1 = 0;
96 97
    frame->i_pts = -1;
    frame->i_frame = -1;
98
    frame->i_frame_num = -1;
Laurent Aimar's avatar
Laurent Aimar committed
99

100
    frame->mb_type= x264_malloc( i_mb_count * sizeof( int8_t) );
101 102 103 104 105 106 107 108 109 110 111 112 113
    frame->mv[0]  = x264_malloc( 2*16 * i_mb_count * sizeof( int16_t ) );
    frame->ref[0] = x264_malloc( 4 * i_mb_count * sizeof( int8_t ) );
    if( h->param.i_bframe )
    {
        frame->mv[1]  = x264_malloc( 2*16 * i_mb_count * sizeof( int16_t ) );
        frame->ref[1] = x264_malloc( 4 * i_mb_count * sizeof( int8_t ) );
    }
    else
    {
        frame->mv[1]  = NULL;
        frame->ref[1] = NULL;
    }

Laurent Aimar's avatar
Laurent Aimar committed
114 115 116 117 118 119 120 121 122 123
    return frame;
}

void x264_frame_delete( x264_frame_t *frame )
{
    int i;
    for( i = 0; i < frame->i_plane; i++ )
    {
        x264_free( frame->buffer[i] );
    }
124
    for( i = 4; i < 11; i++ ) /* filtered planes */
125 126 127
    {
        x264_free( frame->buffer[i] );
    }
128
    x264_free( frame->mb_type );
129 130 131 132
    x264_free( frame->mv[0] );
    x264_free( frame->mv[1] );
    x264_free( frame->ref[0] );
    x264_free( frame->ref[1] );
Laurent Aimar's avatar
Laurent Aimar committed
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
    x264_free( frame );
}

void x264_frame_copy_picture( x264_t *h, x264_frame_t *dst, x264_picture_t *src )
{
    dst->i_type     = src->i_type;
    dst->i_qpplus1  = src->i_qpplus1;
    dst->i_pts      = src->i_pts;

    switch( src->img.i_csp & X264_CSP_MASK )
    {
        case X264_CSP_I420:
            h->csp.i420( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_YV12:
            h->csp.yv12( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_I422:
            h->csp.i422( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_I444:
            h->csp.i444( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_YUYV:
            h->csp.yuyv( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_RGB:
            h->csp.rgb( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_BGR:
            h->csp.bgr( dst, &src->img, h->param.i_width, h->param.i_height );
            break;
        case X264_CSP_BGRA:
            h->csp.bgra( dst, &src->img, h->param.i_width, h->param.i_height );
            break;

        default:
170
            x264_log( h, X264_LOG_ERROR, "Arg invalid CSP\n" );
Laurent Aimar's avatar
Laurent Aimar committed
171 172 173 174 175 176
            break;
    }
}



Loren Merritt's avatar
Loren Merritt committed
177
static void plane_expand_border( uint8_t *pix, int i_stride, int i_height, int i_pad )
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
{
#define PPIXEL(x, y) ( pix + (x) + (y)*i_stride )
    const int i_width = i_stride - 2*i_pad;
    int y;

    for( y = 0; y < i_height; y++ )
    {
        /* left band */
        memset( PPIXEL(-i_pad, y), PPIXEL(0, y)[0], i_pad );
        /* right band */
        memset( PPIXEL(i_width, y), PPIXEL(i_width-1, y)[0], i_pad );
    }
    /* upper band */
    for( y = 0; y < i_pad; y++ )
        memcpy( PPIXEL(-i_pad, -y-1), PPIXEL(-i_pad, 0), i_stride );
    /* lower band */
    for( y = 0; y < i_pad; y++ )
        memcpy( PPIXEL(-i_pad, i_height+y), PPIXEL(-i_pad, i_height-1), i_stride );
#undef PPIXEL
}

Laurent Aimar's avatar
Laurent Aimar committed
199 200
void x264_frame_expand_border( x264_frame_t *frame )
{
201
    int i;
Laurent Aimar's avatar
Laurent Aimar committed
202 203
    for( i = 0; i < frame->i_plane; i++ )
    {
204 205
        int i_pad = i ? 16 : 32;
        plane_expand_border( frame->plane[i], frame->i_stride[i], frame->i_lines[i], i_pad );
Laurent Aimar's avatar
Laurent Aimar committed
206 207 208
    }
}

209 210 211 212
void x264_frame_expand_border_filtered( x264_frame_t *frame )
{
    /* during filtering, 8 extra pixels were filtered on each edge. 
       we want to expand border from the last filtered pixel */
213
    int i;
214
    for( i = 1; i < 4; i++ )
215
        plane_expand_border( frame->filtered[i] - 8*frame->i_stride[0] - 8, frame->i_stride[0], frame->i_lines[0]+2*8, 24 );
216 217
}

218
void x264_frame_expand_border_lowres( x264_frame_t *frame )
219
{
220
    int i;
221
    for( i = 0; i < 4; i++ )
222
        plane_expand_border( frame->lowres[i], frame->i_stride_lowres, frame->i_lines_lowres, 32 );
223 224
}

Loren Merritt's avatar
Loren Merritt committed
225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
void x264_frame_expand_border_mod16( x264_t *h, x264_frame_t *frame )
{
    int i, y;
    for( i = 0; i < frame->i_plane; i++ )
    {
        int i_subsample = i ? 1 : 0;
        int i_width = h->param.i_width >> i_subsample;
        int i_height = h->param.i_height >> i_subsample;
        int i_padx = ( h->sps->i_mb_width * 16 - h->param.i_width ) >> i_subsample;
        int i_pady = ( h->sps->i_mb_height * 16 - h->param.i_height ) >> i_subsample;

        if( i_padx )
        {
            for( y = 0; y < i_height; y++ )
                memset( &frame->plane[i][y*frame->i_stride[i] + i_width],
                         frame->plane[i][y*frame->i_stride[i] + i_width - 1],
                         i_padx );
        }
        if( i_pady )
        {
            for( y = i_height; y < i_height + i_pady; y++ );
                memcpy( &frame->plane[i][y*frame->i_stride[i]],
                        &frame->plane[i][(i_height-1)*frame->i_stride[i]],
                        i_width + i_padx );
        }
    }
}

253

254
/* Deblocking filter */
Laurent Aimar's avatar
Laurent Aimar committed
255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295

static const int i_alpha_table[52] =
{
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  4,  4,  5,  6,
     7,  8,  9, 10, 12, 13, 15, 17, 20, 22,
    25, 28, 32, 36, 40, 45, 50, 56, 63, 71,
    80, 90,101,113,127,144,162,182,203,226,
    255, 255
};
static const int i_beta_table[52] =
{
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  2,  2,  2,  3,
     3,  3,  3,  4,  4,  4,  6,  6,  7,  7,
     8,  8,  9,  9, 10, 10, 11, 11, 12, 12,
    13, 13, 14, 14, 15, 15, 16, 16, 17, 17,
    18, 18
};
static const int i_tc0_table[52][3] =
{
    { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
    { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
    { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 1 },
    { 0, 0, 1 }, { 0, 0, 1 }, { 0, 0, 1 }, { 0, 1, 1 }, { 0, 1, 1 }, { 1, 1, 1 },
    { 1, 1, 1 }, { 1, 1, 1 }, { 1, 1, 1 }, { 1, 1, 2 }, { 1, 1, 2 }, { 1, 1, 2 },
    { 1, 1, 2 }, { 1, 2, 3 }, { 1, 2, 3 }, { 2, 2, 3 }, { 2, 2, 4 }, { 2, 3, 4 },
    { 2, 3, 4 }, { 3, 3, 5 }, { 3, 4, 6 }, { 3, 4, 6 }, { 4, 5, 7 }, { 4, 5, 8 },
    { 4, 6, 9 }, { 5, 7,10 }, { 6, 8,11 }, { 6, 8,13 }, { 7,10,14 }, { 8,11,16 },
    { 9,12,18 }, {10,13,20 }, {11,15,23 }, {13,17,25 }
};

/* From ffmpeg */
static inline int clip_uint8( int a )
{
    if (a&(~255))
        return (-a)>>31;
    else
        return a;
}

Loren Merritt's avatar
Loren Merritt committed
296
static inline void deblock_luma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
Laurent Aimar's avatar
Laurent Aimar committed
297 298
{
    int i, d;
Loren Merritt's avatar
Loren Merritt committed
299 300 301
    for( i = 0; i < 4; i++ ) {
        if( tc0[i] < 0 ) {
            pix += 4*ystride;
Laurent Aimar's avatar
Laurent Aimar committed
302 303
            continue;
        }
Loren Merritt's avatar
Loren Merritt committed
304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321
        for( d = 0; d < 4; d++ ) {
            const int p2 = pix[-3*xstride];
            const int p1 = pix[-2*xstride];
            const int p0 = pix[-1*xstride];
            const int q0 = pix[ 0*xstride];
            const int q1 = pix[ 1*xstride];
            const int q2 = pix[ 2*xstride];
   
            if( X264_ABS( p0 - q0 ) < alpha &&
                X264_ABS( p1 - p0 ) < beta &&
                X264_ABS( q1 - q0 ) < beta ) {
   
                int tc = tc0[i];
                int delta;
   
                if( X264_ABS( p2 - p0 ) < beta ) {
                    pix[-2*xstride] = p1 + x264_clip3( (( p2 + ((p0 + q0 + 1) >> 1)) >> 1) - p1, -tc0[i], tc0[i] );
                    tc++; 
Laurent Aimar's avatar
Laurent Aimar committed
322
                }
Loren Merritt's avatar
Loren Merritt committed
323 324 325
                if( X264_ABS( q2 - q0 ) < beta ) {
                    pix[ 1*xstride] = q1 + x264_clip3( (( q2 + ((p0 + q0 + 1) >> 1)) >> 1) - q1, -tc0[i], tc0[i] );
                    tc++;
Laurent Aimar's avatar
Laurent Aimar committed
326
                }
Loren Merritt's avatar
Loren Merritt committed
327 328 329 330
    
                delta = x264_clip3( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
                pix[-1*xstride] = clip_uint8( p0 + delta );    /* p0' */
                pix[ 0*xstride] = clip_uint8( q0 - delta );    /* q0' */
Laurent Aimar's avatar
Laurent Aimar committed
331
            }
Loren Merritt's avatar
Loren Merritt committed
332
            pix += ystride;
Laurent Aimar's avatar
Laurent Aimar committed
333 334 335
        }
    }
}
Loren Merritt's avatar
Loren Merritt committed
336 337 338 339 340 341 342 343
static void deblock_v_luma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
{
    deblock_luma_c( pix, stride, 1, alpha, beta, tc0 ); 
}
static void deblock_h_luma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
{
    deblock_luma_c( pix, 1, stride, alpha, beta, tc0 );
}
Laurent Aimar's avatar
Laurent Aimar committed
344

Loren Merritt's avatar
Loren Merritt committed
345
static inline void deblock_chroma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
Laurent Aimar's avatar
Laurent Aimar committed
346 347
{
    int i, d;
Loren Merritt's avatar
Loren Merritt committed
348 349 350 351
    for( i = 0; i < 4; i++ ) {
        const int tc = tc0[i];
        if( tc <= 0 ) {
            pix += 2*ystride;
Laurent Aimar's avatar
Laurent Aimar committed
352 353
            continue;
        }
Loren Merritt's avatar
Loren Merritt committed
354 355 356 357 358 359 360 361 362 363 364 365 366
        for( d = 0; d < 2; d++ ) {
            const int p1 = pix[-2*xstride];
            const int p0 = pix[-1*xstride];
            const int q0 = pix[ 0*xstride];
            const int q1 = pix[ 1*xstride];

            if( X264_ABS( p0 - q0 ) < alpha &&
                X264_ABS( p1 - p0 ) < beta &&
                X264_ABS( q1 - q0 ) < beta ) {

                int delta = x264_clip3( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
                pix[-1*xstride] = clip_uint8( p0 + delta );    /* p0' */
                pix[ 0*xstride] = clip_uint8( q0 - delta );    /* q0' */
Laurent Aimar's avatar
Laurent Aimar committed
367
            }
Loren Merritt's avatar
Loren Merritt committed
368
            pix += ystride;
Laurent Aimar's avatar
Laurent Aimar committed
369 370 371
        }
    }
}
Loren Merritt's avatar
Loren Merritt committed
372 373 374 375 376 377 378 379
static void deblock_v_chroma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
{   
    deblock_chroma_c( pix, stride, 1, alpha, beta, tc0 );
}
static void deblock_h_chroma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
{   
    deblock_chroma_c( pix, 1, stride, alpha, beta, tc0 );
}
Laurent Aimar's avatar
Laurent Aimar committed
380

Loren Merritt's avatar
Loren Merritt committed
381
static inline void deblock_luma_intra_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta )
Laurent Aimar's avatar
Laurent Aimar committed
382
{
Loren Merritt's avatar
Loren Merritt committed
383 384 385 386 387 388 389 390 391 392 393 394 395 396 397
    int d;
    for( d = 0; d < 16; d++ ) {
        const int p2 = pix[-3*xstride];
        const int p1 = pix[-2*xstride];
        const int p0 = pix[-1*xstride];
        const int q0 = pix[ 0*xstride];
        const int q1 = pix[ 1*xstride];
        const int q2 = pix[ 2*xstride];

        if( X264_ABS( p0 - q0 ) < alpha &&
            X264_ABS( p1 - p0 ) < beta &&
            X264_ABS( q1 - q0 ) < beta ) {

            if(X264_ABS( p0 - q0 ) < ((alpha >> 2) + 2) ){
                if( X264_ABS( p2 - p0 ) < beta)
Laurent Aimar's avatar
Laurent Aimar committed
398
                {
Loren Merritt's avatar
Loren Merritt committed
399 400 401 402 403 404 405 406
                    const int p3 = pix[-4*xstride];
                    /* p0', p1', p2' */
                    pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
                    pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
                    pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
                } else {
                    /* p0' */
                    pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
Laurent Aimar's avatar
Laurent Aimar committed
407
                }
Loren Merritt's avatar
Loren Merritt committed
408
                if( X264_ABS( q2 - q0 ) < beta)
Laurent Aimar's avatar
Laurent Aimar committed
409
                {
Loren Merritt's avatar
Loren Merritt committed
410 411 412 413 414 415 416 417
                    const int q3 = pix[3*xstride];
                    /* q0', q1', q2' */
                    pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
                    pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
                    pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
                } else {
                    /* q0' */
                    pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
Laurent Aimar's avatar
Laurent Aimar committed
418
                }
Loren Merritt's avatar
Loren Merritt committed
419 420 421 422
            }else{
                /* p0', q0' */
                pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
                pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
Laurent Aimar's avatar
Laurent Aimar committed
423 424
            }
        }
Loren Merritt's avatar
Loren Merritt committed
425
        pix += ystride;
Laurent Aimar's avatar
Laurent Aimar committed
426 427
    }
}
Loren Merritt's avatar
Loren Merritt committed
428 429 430 431 432 433 434 435
static void deblock_v_luma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
{   
    deblock_luma_intra_c( pix, stride, 1, alpha, beta );
}
static void deblock_h_luma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
{   
    deblock_luma_intra_c( pix, 1, stride, alpha, beta );
}
Laurent Aimar's avatar
Laurent Aimar committed
436

Loren Merritt's avatar
Loren Merritt committed
437 438 439 440 441 442 443 444 445 446 447 448 449 450 451
static inline void deblock_chroma_intra_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta )
{   
    int d; 
    for( d = 0; d < 8; d++ ) {
        const int p1 = pix[-2*xstride];
        const int p0 = pix[-1*xstride];
        const int q0 = pix[ 0*xstride];
        const int q1 = pix[ 1*xstride];

        if( X264_ABS( p0 - q0 ) < alpha &&
            X264_ABS( p1 - p0 ) < beta &&
            X264_ABS( q1 - q0 ) < beta ) {

            pix[-1*xstride] = (2*p1 + p0 + q1 + 2) >> 2;   /* p0' */
            pix[ 0*xstride] = (2*q1 + q0 + p1 + 2) >> 2;   /* q0' */
Laurent Aimar's avatar
Laurent Aimar committed
452 453
        }

Loren Merritt's avatar
Loren Merritt committed
454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480
        pix += ystride;
    }
}
static void deblock_v_chroma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
{   
    deblock_chroma_intra_c( pix, stride, 1, alpha, beta );
}
static void deblock_h_chroma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
{   
    deblock_chroma_intra_c( pix, 1, stride, alpha, beta );
}

static inline void deblock_edge( x264_t *h, uint8_t *pix, int i_stride, int bS[4], int i_qp, int b_chroma,
                                 x264_deblock_inter_t pf_inter, x264_deblock_intra_t pf_intra )
{
    int i;
    const int index_a = x264_clip3( i_qp + h->sh.i_alpha_c0_offset, 0, 51 );
    const int alpha = i_alpha_table[index_a];
    const int beta  = i_beta_table[x264_clip3( i_qp + h->sh.i_beta_offset, 0, 51 )];

    if( bS[0] < 4 ) {
        int8_t tc[4]; 
        for(i=0; i<4; i++)
            tc[i] = (bS[i] ? i_tc0_table[index_a][bS[i] - 1] : -1) + b_chroma;
        pf_inter( pix, i_stride, alpha, beta, tc );
    } else {
        pf_intra( pix, i_stride, alpha, beta );
Laurent Aimar's avatar
Laurent Aimar committed
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
    }
}

void x264_frame_deblocking_filter( x264_t *h, int i_slice_type )
{
    const int s8x8 = 2 * h->mb.i_mb_stride;
    const int s4x4 = 4 * h->mb.i_mb_stride;

    int mb_y, mb_x;

    for( mb_y = 0, mb_x = 0; mb_y < h->sps->i_mb_height; )
    {
        const int mb_xy  = mb_y * h->mb.i_mb_stride + mb_x;
        const int mb_8x8 = 2 * s8x8 * mb_y + 2 * mb_x;
        const int mb_4x4 = 4 * s4x4 * mb_y + 4 * mb_x;
        int i_edge;
        int i_dir;
498 499 500 501 502 503 504 505 506 507 508 509
        const int b_8x8_transform = h->mb.mb_transform_size[mb_xy];

        /* cavlc + 8x8 transform stores nnz per 16 coeffs for the purpose of
         * entropy coding, but per 64 coeffs for the purpose of deblocking */
        if( !h->param.b_cabac && b_8x8_transform )
        {
            uint32_t *nnz = (uint32_t*)h->mb.non_zero_count[mb_xy];
            if( nnz[0] ) nnz[0] = 0x01010101;
            if( nnz[1] ) nnz[1] = 0x01010101;
            if( nnz[2] ) nnz[2] = 0x01010101;
            if( nnz[3] ) nnz[3] = 0x01010101;
        }
Laurent Aimar's avatar
Laurent Aimar committed
510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547

        /* i_dir == 0 -> vertical edge
         * i_dir == 1 -> horizontal edge */
        for( i_dir = 0; i_dir < 2; i_dir++ )
        {
            int i_start;
            int i_qp, i_qpn;

            i_start = (( i_dir == 0 && mb_x != 0 ) || ( i_dir == 1 && mb_y != 0 ) ) ? 0 : 1;

            for( i_edge = i_start; i_edge < 4; i_edge++ )
            {
                int mbn_xy  = i_edge > 0 ? mb_xy  : ( i_dir == 0 ? mb_xy  - 1 : mb_xy - h->mb.i_mb_stride );
                int mbn_8x8 = i_edge > 0 ? mb_8x8 : ( i_dir == 0 ? mb_8x8 - 2 : mb_8x8 - 2 * s8x8 );
                int mbn_4x4 = i_edge > 0 ? mb_4x4 : ( i_dir == 0 ? mb_4x4 - 4 : mb_4x4 - 4 * s4x4 );

                int bS[4];  /* filtering strength */

                /* *** Get bS for each 4px for the current edge *** */
                if( IS_INTRA( h->mb.type[mb_xy] ) || IS_INTRA( h->mb.type[mbn_xy] ) )
                {
                    bS[0] = bS[1] = bS[2] = bS[3] = ( i_edge == 0 ? 4 : 3 );
                }
                else
                {
                    int i;
                    for( i = 0; i < 4; i++ )
                    {
                        int x  = i_dir == 0 ? i_edge : i;
                        int y  = i_dir == 0 ? i      : i_edge;
                        int xn = (x - (i_dir == 0 ? 1 : 0 ))&0x03;
                        int yn = (y - (i_dir == 0 ? 0 : 1 ))&0x03;

                        if( h->mb.non_zero_count[mb_xy][block_idx_xy[x][y]] != 0 ||
                            h->mb.non_zero_count[mbn_xy][block_idx_xy[xn][yn]] != 0 )
                        {
                            bS[i] = 2;
                        }
548
                        else
Laurent Aimar's avatar
Laurent Aimar committed
549
                        {
550 551 552 553 554 555 556 557 558 559 560 561 562 563
                            /* FIXME: A given frame may occupy more than one position in
                             * the reference list. So we should compare the frame numbers,
                             * not the indices in the ref list.
                             * No harm yet, as we don't generate that case.*/

                            int i8p= mb_8x8+(x/2)+(y/2)*s8x8;
                            int i8q= mbn_8x8+(xn/2)+(yn/2)*s8x8;
                            int i4p= mb_4x4+x+y*s4x4;
                            int i4q= mbn_4x4+xn+yn*s4x4;
                            int l;

                            bS[i] = 0;

                            for( l = 0; l < 1 + (i_slice_type == SLICE_TYPE_B); l++ )
Laurent Aimar's avatar
Laurent Aimar committed
564
                            {
565 566 567 568 569 570 571
                                if( h->mb.ref[l][i8p] != h->mb.ref[l][i8q] ||
                                    abs( h->mb.mv[l][i4p][0] - h->mb.mv[l][i4q][0] ) >= 4 ||
                                    abs( h->mb.mv[l][i4p][1] - h->mb.mv[l][i4q][1] ) >= 4 )
                                {
                                    bS[i] = 1;
                                    break;
                                }
Laurent Aimar's avatar
Laurent Aimar committed
572 573 574 575 576 577 578 579 580 581 582 583 584
                            }
                        }
                    }
                }

                /* *** filter *** */
                /* Y plane */
                i_qp = h->mb.qp[mb_xy];
                i_qpn= h->mb.qp[mbn_xy];

                if( i_dir == 0 )
                {
                    /* vertical edge */
585 586
                    if( !b_8x8_transform || !(i_edge & 1) )
                    {
Loren Merritt's avatar
Loren Merritt committed
587 588 589
                        deblock_edge( h, &h->fdec->plane[0][16*mb_y * h->fdec->i_stride[0] + 16*mb_x + 4*i_edge],
                                      h->fdec->i_stride[0], bS, (i_qp+i_qpn+1) >> 1, 0,
                                      h->loopf.deblock_h_luma, h->loopf.deblock_h_luma_intra );
590 591
                    }
                    if( !(i_edge & 1) )
Laurent Aimar's avatar
Laurent Aimar committed
592 593 594 595
                    {
                        /* U/V planes */
                        int i_qpc = ( i_chroma_qp_table[x264_clip3( i_qp + h->pps->i_chroma_qp_index_offset, 0, 51 )] +
                                      i_chroma_qp_table[x264_clip3( i_qpn + h->pps->i_chroma_qp_index_offset, 0, 51 )] + 1 ) >> 1;
Loren Merritt's avatar
Loren Merritt committed
596 597 598 599 600 601
                        deblock_edge( h, &h->fdec->plane[1][8*(mb_y*h->fdec->i_stride[1]+mb_x)+2*i_edge],
                                      h->fdec->i_stride[1], bS, i_qpc, 1,
                                      h->loopf.deblock_h_chroma, h->loopf.deblock_h_chroma_intra );
                        deblock_edge( h, &h->fdec->plane[2][8*(mb_y*h->fdec->i_stride[2]+mb_x)+2*i_edge],
                                      h->fdec->i_stride[2], bS, i_qpc, 1,
                                      h->loopf.deblock_h_chroma, h->loopf.deblock_h_chroma_intra );
Laurent Aimar's avatar
Laurent Aimar committed
602 603 604 605 606
                    }
                }
                else
                {
                    /* horizontal edge */
607 608
                    if( !b_8x8_transform || !(i_edge & 1) )
                    {
Loren Merritt's avatar
Loren Merritt committed
609 610 611
                        deblock_edge( h, &h->fdec->plane[0][(16*mb_y + 4*i_edge) * h->fdec->i_stride[0] + 16*mb_x],
                                      h->fdec->i_stride[0], bS, (i_qp+i_qpn+1) >> 1, 0,
                                      h->loopf.deblock_v_luma, h->loopf.deblock_v_luma_intra );
612
                    }
Laurent Aimar's avatar
Laurent Aimar committed
613
                    /* U/V planes */
614
                    if( !(i_edge & 1) )
Laurent Aimar's avatar
Laurent Aimar committed
615 616 617
                    {
                        int i_qpc = ( i_chroma_qp_table[x264_clip3( i_qp + h->pps->i_chroma_qp_index_offset, 0, 51 )] +
                                      i_chroma_qp_table[x264_clip3( i_qpn + h->pps->i_chroma_qp_index_offset, 0, 51 )] + 1 ) >> 1;
Loren Merritt's avatar
Loren Merritt committed
618 619 620 621 622 623
                        deblock_edge( h, &h->fdec->plane[1][8*(mb_y*h->fdec->i_stride[1]+mb_x)+2*i_edge*h->fdec->i_stride[1]],
                                      h->fdec->i_stride[1], bS, i_qpc, 1,
                                      h->loopf.deblock_v_chroma, h->loopf.deblock_v_chroma_intra );
                        deblock_edge( h, &h->fdec->plane[2][8*(mb_y*h->fdec->i_stride[2]+mb_x)+2*i_edge*h->fdec->i_stride[2]],
                                      h->fdec->i_stride[2], bS, i_qpc, 1,
                                      h->loopf.deblock_v_chroma, h->loopf.deblock_v_chroma_intra );
Laurent Aimar's avatar
Laurent Aimar committed
624 625 626 627 628 629 630 631 632 633 634 635 636 637 638
                    }
                }
            }
        }

        /* newt mb */
        mb_x++;
        if( mb_x >= h->sps->i_mb_width )
        {
            mb_x = 0;
            mb_y++;
        }
    }
}

Loren Merritt's avatar
Loren Merritt committed
639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
void x264_deblock_v_chroma_mmxext( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
void x264_deblock_h_chroma_mmxext( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
void x264_deblock_v_chroma_intra_mmxext( uint8_t *pix, int stride, int alpha, int beta );
void x264_deblock_h_chroma_intra_mmxext( uint8_t *pix, int stride, int alpha, int beta );

#ifdef ARCH_X86_64
void x264_deblock_v_luma_sse2( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
void x264_deblock_h_luma_sse2( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
#else
void x264_deblock_h_luma_mmxext( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
void x264_deblock_v8_luma_mmxext( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );

void x264_deblock_v_luma_mmxext( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
{
    x264_deblock_v8_luma_mmxext( pix,   stride, alpha, beta, tc0   );
    x264_deblock_v8_luma_mmxext( pix+8, stride, alpha, beta, tc0+2 );
}
#endif
Laurent Aimar's avatar
Laurent Aimar committed
657

Loren Merritt's avatar
Loren Merritt committed
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674
void x264_deblock_init( int cpu, x264_deblock_function_t *pf )
{
    pf->deblock_v_luma = deblock_v_luma_c;
    pf->deblock_h_luma = deblock_h_luma_c;
    pf->deblock_v_chroma = deblock_v_chroma_c;
    pf->deblock_h_chroma = deblock_h_chroma_c;
    pf->deblock_v_luma_intra = deblock_v_luma_intra_c;
    pf->deblock_h_luma_intra = deblock_h_luma_intra_c;
    pf->deblock_v_chroma_intra = deblock_v_chroma_intra_c;
    pf->deblock_h_chroma_intra = deblock_h_chroma_intra_c;

    if( cpu&X264_CPU_MMXEXT )
    {
        pf->deblock_v_chroma = x264_deblock_v_chroma_mmxext;
        pf->deblock_h_chroma = x264_deblock_h_chroma_mmxext;
        pf->deblock_v_chroma_intra = x264_deblock_v_chroma_intra_mmxext;
        pf->deblock_h_chroma_intra = x264_deblock_h_chroma_intra_mmxext;
Laurent Aimar's avatar
Laurent Aimar committed
675

Loren Merritt's avatar
Loren Merritt committed
676 677 678 679 680 681 682 683 684 685 686 687
#ifdef ARCH_X86_64
        if( cpu&X264_CPU_SSE2 )
        {
            pf->deblock_v_luma = x264_deblock_v_luma_sse2;
            pf->deblock_h_luma = x264_deblock_h_luma_sse2;
        }
#else
        pf->deblock_v_luma = x264_deblock_v_luma_mmxext;
        pf->deblock_h_luma = x264_deblock_h_luma_mmxext;
#endif
    }
}
Laurent Aimar's avatar
Laurent Aimar committed
688