www.pudn.com > x264_2007.rar > frame.c
/*****************************************************************************
* 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
*
* 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 "common.h"
#define PADH 32
#define PADV 32
x264_frame_t *x264_frame_new( x264_t *h )
{
x264_frame_t *frame = x264_malloc( sizeof(x264_frame_t) );
int i, j;
int i_mb_count = h->mb.i_mb_count;
int i_stride;
int i_lines;
int i_padv = PADV << h->param.b_interlaced;
if( !frame ) return NULL;
memset( frame, 0, sizeof(x264_frame_t) );
/* allocate frame data (+64 for extra data for me) */
i_stride = ( ( h->param.i_width + 15 ) & -16 )+ 2*PADH;
i_lines = ( ( h->param.i_height + 15 ) & -16 );
if( h->param.b_interlaced )
i_lines = ( i_lines + 31 ) & -32;
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;
CHECKED_MALLOC( frame->buffer[i],
frame->i_stride[i] * ( frame->i_lines[i] + 2*i_padv / i_divh ) );
frame->plane[i] = ((uint8_t*)frame->buffer[i]) +
frame->i_stride[i] * i_padv / i_divh + PADH / i_divw;
}
frame->i_stride[3] = 0;
frame->i_lines[3] = 0;
frame->buffer[3] = NULL;
frame->plane[3] = NULL;
frame->filtered[0] = frame->plane[0];
for( i = 0; i < 3; i++ )
{
CHECKED_MALLOC( frame->buffer[4+i],
frame->i_stride[0] * ( frame->i_lines[0] + 2*i_padv ) );
frame->filtered[i+1] = ((uint8_t*)frame->buffer[4+i]) +
frame->i_stride[0] * i_padv + PADH;
}
if( h->frames.b_have_lowres )
{
frame->i_stride_lowres = frame->i_stride[0]/2 + PADH;
frame->i_lines_lowres = frame->i_lines[0]/2;
for( i = 0; i < 4; i++ )
{
CHECKED_MALLOC( frame->buffer_lowres[i],
frame->i_stride_lowres * ( frame->i_lines[0]/2 + 2*i_padv ) );
frame->lowres[i] = ((uint8_t*)frame->buffer_lowres[i]) +
frame->i_stride_lowres * i_padv + PADH;
}
}
if( h->param.analyse.i_me_method == X264_ME_ESA )
{
CHECKED_MALLOC( frame->buffer[7],
2 * frame->i_stride[0] * (frame->i_lines[0] + 2*i_padv) * sizeof(uint16_t) );
frame->integral = (uint16_t*)frame->buffer[7] + frame->i_stride[0] * i_padv + PADH;
}
frame->i_poc = -1;
frame->i_type = X264_TYPE_AUTO;
frame->i_qpplus1 = 0;
frame->i_pts = -1;
frame->i_frame = -1;
frame->i_frame_num = -1;
frame->i_lines_completed = -1;
CHECKED_MALLOC( frame->mb_type, i_mb_count * sizeof(int8_t));
CHECKED_MALLOC( frame->mv[0], 2*16 * i_mb_count * sizeof(int16_t) );
CHECKED_MALLOC( frame->ref[0], 4 * i_mb_count * sizeof(int8_t) );
if( h->param.i_bframe )
{
CHECKED_MALLOC( frame->mv[1], 2*16 * i_mb_count * sizeof(int16_t) );
CHECKED_MALLOC( frame->ref[1], 4 * i_mb_count * sizeof(int8_t) );
}
else
{
frame->mv[1] = NULL;
frame->ref[1] = NULL;
}
CHECKED_MALLOC( frame->i_row_bits, i_lines/16 * sizeof(int) );
CHECKED_MALLOC( frame->i_row_qp, i_lines/16 * sizeof(int) );
for( i = 0; i < h->param.i_bframe + 2; i++ )
for( j = 0; j < h->param.i_bframe + 2; j++ )
CHECKED_MALLOC( frame->i_row_satds[i][j], i_lines/16 * sizeof(int) );
x264_pthread_mutex_init( &frame->mutex, NULL );
x264_pthread_cond_init( &frame->cv, NULL );
return frame;
fail:
x264_frame_delete( frame );
return NULL;
}
void x264_frame_delete( x264_frame_t *frame )
{
int i, j;
for( i = 0; i < 8; i++ )
x264_free( frame->buffer[i] );
for( i = 0; i < 4; i++ )
x264_free( frame->buffer_lowres[i] );
for( i = 0; i < X264_BFRAME_MAX+2; i++ )
for( j = 0; j < X264_BFRAME_MAX+2; j++ )
x264_free( frame->i_row_satds[i][j] );
x264_free( frame->i_row_bits );
x264_free( frame->i_row_qp );
x264_free( frame->mb_type );
x264_free( frame->mv[0] );
x264_free( frame->mv[1] );
x264_free( frame->ref[0] );
x264_free( frame->ref[1] );
x264_pthread_mutex_destroy( &frame->mutex );
x264_pthread_cond_destroy( &frame->cv );
x264_free( frame );
}
void x264_frame_copy_picture( x264_t *h, x264_frame_t *dst, x264_picture_t *src )
{
int i_csp = src->img.i_csp & X264_CSP_MASK;
dst->i_type = src->i_type;
dst->i_qpplus1 = src->i_qpplus1;
dst->i_pts = src->i_pts;
if( i_csp <= X264_CSP_NONE || i_csp >= X264_CSP_MAX )
x264_log( h, X264_LOG_ERROR, "Arg invalid CSP\n" );
else
h->csp.convert[i_csp]( &h->mc, dst, &src->img, h->param.i_width, h->param.i_height );
}
static void plane_expand_border( uint8_t *pix, int i_stride, int i_width, int i_height, int i_padh, int i_padv, int b_pad_top, int b_pad_bottom )
{
#define PPIXEL(x, y) ( pix + (x) + (y)*i_stride )
int y;
for( y = 0; y < i_height; y++ )
{
/* left band */
memset( PPIXEL(-i_padh, y), PPIXEL(0, y)[0], i_padh );
/* right band */
memset( PPIXEL(i_width, y), PPIXEL(i_width-1, y)[0], i_padh );
}
/* upper band */
if( b_pad_top )
for( y = 0; y < i_padv; y++ )
memcpy( PPIXEL(-i_padh, -y-1), PPIXEL(-i_padh, 0), i_width+2*i_padh );
/* lower band */
if( b_pad_bottom )
for( y = 0; y < i_padv; y++ )
memcpy( PPIXEL(-i_padh, i_height+y), PPIXEL(-i_padh, i_height-1), i_width+2*i_padh );
#undef PPIXEL
}
void x264_frame_expand_border( x264_t *h, x264_frame_t *frame, int mb_y, int b_end )
{
int i;
int b_start = !mb_y;
if( mb_y & h->sh.b_mbaff )
return;
for( i = 0; i < frame->i_plane; i++ )
{
int stride = frame->i_stride[i];
int width = 16*h->sps->i_mb_width >> !!i;
int height = (b_end ? 16*(h->sps->i_mb_height - mb_y) >> h->sh.b_mbaff : 16) >> !!i;
int padh = PADH >> !!i;
int padv = PADV >> !!i;
// buffer: 2 chroma, 3 luma (rounded to 4) because deblocking goes beyond the top of the mb
uint8_t *pix = frame->plane[i] + X264_MAX(0, (16*mb_y-4)*stride >> !!i);
if( b_end && !b_start )
height += 4 >> (!!i + h->sh.b_mbaff);
if( h->sh.b_mbaff )
{
plane_expand_border( pix, stride*2, width, height, padh, padv, b_start, b_end );
plane_expand_border( pix+stride, stride*2, width, height, padh, padv, b_start, b_end );
}
else
{
plane_expand_border( pix, stride, width, height, padh, padv, b_start, b_end );
}
}
}
void x264_frame_expand_border_filtered( x264_t *h, x264_frame_t *frame, int mb_y, int b_end )
{
/* during filtering, 8 extra pixels were filtered on each edge.
we want to expand border from the last filtered pixel */
int b_start = !mb_y;
int stride = frame->i_stride[0];
int width = 16*h->sps->i_mb_width + 16;
int height = b_end ? (16*(h->sps->i_mb_height - mb_y) >> h->sh.b_mbaff) + 16 : 16;
int padh = PADH - 8;
int padv = PADV - 8;
int i;
for( i = 1; i < 4; i++ )
{
// buffer: 8 luma, to match the hpel filter
uint8_t *pix = frame->filtered[i] + (16*mb_y - (8 << h->sh.b_mbaff)) * stride - 8;
if( h->sh.b_mbaff )
{
plane_expand_border( pix, stride*2, width, height, padh, padv, b_start, b_end );
plane_expand_border( pix+stride, stride*2, width, height, padh, padv, b_start, b_end );
}
else
{
plane_expand_border( pix, stride, width, height, padh, padv, b_start, b_end );
}
}
}
void x264_frame_expand_border_lowres( x264_frame_t *frame )
{
int i;
for( i = 0; i < 4; i++ )
plane_expand_border( frame->lowres[i], frame->i_stride_lowres, frame->i_stride_lowres - 2*PADH, frame->i_lines_lowres, PADH, PADV, 1, 1 );
}
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 )
{
//FIXME interlace? or just let it pad using the wrong field
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 );
}
}
}
/* cavlc + 8x8 transform stores nnz per 16 coeffs for the purpose of
* entropy coding, but per 64 coeffs for the purpose of deblocking */
void munge_cavlc_nnz_row( x264_t *h, int mb_y, uint8_t (*buf)[16] )
{
uint32_t (*src)[6] = (uint32_t(*)[6])h->mb.non_zero_count + mb_y * h->sps->i_mb_width;
int8_t *transform = h->mb.mb_transform_size + mb_y * h->sps->i_mb_width;
int x;
for( x=0; xsps->i_mb_width; x++ )
{
memcpy( buf+x, src+x, 16 );
if( transform[x] )
{
if( src[x][0] ) src[x][0] = 0x01010101;
if( src[x][1] ) src[x][1] = 0x01010101;
if( src[x][2] ) src[x][2] = 0x01010101;
if( src[x][3] ) src[x][3] = 0x01010101;
}
}
}
static void restore_cavlc_nnz_row( x264_t *h, int mb_y, uint8_t (*buf)[16] )
{
uint8_t (*dst)[24] = h->mb.non_zero_count + mb_y * h->sps->i_mb_width;
int x;
for( x=0; xsps->i_mb_width; x++ )
memcpy( dst+x, buf+x, 16 );
}
static void munge_cavlc_nnz( x264_t *h, int mb_y, uint8_t (*buf)[16], void (*func)(x264_t*, int, uint8_t (*)[16]) )
{
func( h, mb_y, buf );
if( mb_y > 0 )
func( h, mb_y-1, buf + h->sps->i_mb_width );
if( h->sh.b_mbaff )
{
func( h, mb_y+1, buf + h->sps->i_mb_width * 2 );
if( mb_y > 0 )
func( h, mb_y-2, buf + h->sps->i_mb_width * 3 );
}
}
/* Deblocking filter */
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;
}
static inline void deblock_luma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
{
int i, d;
for( i = 0; i < 4; i++ ) {
if( tc0[i] < 0 ) {
pix += 4*ystride;
continue;
}
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( abs( p0 - q0 ) < alpha &&
abs( p1 - p0 ) < beta &&
abs( q1 - q0 ) < beta ) {
int tc = tc0[i];
int delta;
if( abs( p2 - p0 ) < beta ) {
pix[-2*xstride] = p1 + x264_clip3( (( p2 + ((p0 + q0 + 1) >> 1)) >> 1) - p1, -tc0[i], tc0[i] );
tc++;
}
if( abs( q2 - q0 ) < beta ) {
pix[ 1*xstride] = q1 + x264_clip3( (( q2 + ((p0 + q0 + 1) >> 1)) >> 1) - q1, -tc0[i], tc0[i] );
tc++;
}
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' */
}
pix += ystride;
}
}
}
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 );
}
static inline void deblock_chroma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
{
int i, d;
for( i = 0; i < 4; i++ ) {
const int tc = tc0[i];
if( tc <= 0 ) {
pix += 2*ystride;
continue;
}
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( abs( p0 - q0 ) < alpha &&
abs( p1 - p0 ) < beta &&
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' */
}
pix += ystride;
}
}
}
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 );
}
static inline void deblock_luma_intra_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta )
{
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( abs( p0 - q0 ) < alpha &&
abs( p1 - p0 ) < beta &&
abs( q1 - q0 ) < beta ) {
if(abs( p0 - q0 ) < ((alpha >> 2) + 2) ){
if( abs( p2 - p0 ) < beta)
{
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;
}
if( abs( q2 - q0 ) < beta)
{
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;
}
}else{
/* p0', q0' */
pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
}
}
pix += ystride;
}
}
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 );
}
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( abs( p0 - q0 ) < alpha &&
abs( p1 - p0 ) < beta &&
abs( q1 - q0 ) < beta ) {
pix[-1*xstride] = (2*p1 + p0 + q1 + 2) >> 2; /* p0' */
pix[ 0*xstride] = (2*q1 + q0 + p1 + 2) >> 2; /* q0' */
}
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 );
}
}
void x264_frame_deblock_row( x264_t *h, int mb_y )
{
const int s8x8 = 2 * h->mb.i_mb_stride;
const int s4x4 = 4 * h->mb.i_mb_stride;
const int b_interlaced = h->sh.b_mbaff;
const int mvy_limit = 4 >> b_interlaced;
int mb_x;
int i_stride2[3] = { h->fdec->i_stride[0] << b_interlaced,
h->fdec->i_stride[1] << b_interlaced,
h->fdec->i_stride[2] << b_interlaced };
if( !h->pps->b_cabac && h->pps->b_transform_8x8_mode )
munge_cavlc_nnz( h, mb_y, h->mb.nnz_backup, munge_cavlc_nnz_row );
for( mb_x = 0; mb_x < h->sps->i_mb_width; )
{
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;
const int b_8x8_transform = h->mb.mb_transform_size[mb_xy];
const int i_edge_end = (h->mb.type[mb_xy] == P_SKIP) ? 1 : 4;
int i_edge, i_dir;
int i_pix_y[3] = { 16*mb_y*h->fdec->i_stride[0] + 16*mb_x,
8*mb_y*h->fdec->i_stride[1] + 8*mb_x,
8*mb_y*h->fdec->i_stride[2] + 8*mb_x };
if( b_interlaced && (mb_y&1) )
{
i_pix_y[0] -= 15*h->fdec->i_stride[0];
i_pix_y[1] -= 7*h->fdec->i_stride[1];
i_pix_y[2] -= 7*h->fdec->i_stride[2];
}
x264_prefetch_fenc( h, h->fdec, mb_x, mb_y );
/* i_dir == 0 -> vertical edge
* i_dir == 1 -> horizontal edge */
for( i_dir = 0; i_dir < 2; i_dir++ )
{
int i_start = (i_dir ? (mb_y <= b_interlaced) : (mb_x == 0));
int i_qp, i_qpn;
for( i_edge = i_start; i_edge < i_edge_end; i_edge++ )
{
int mbn_xy, mbn_8x8, mbn_4x4;
int bS[4]; /* filtering strength */
if( b_8x8_transform && (i_edge&1) )
continue;
mbn_xy = i_edge > 0 ? mb_xy : ( i_dir == 0 ? mb_xy - 1 : mb_xy - h->mb.i_mb_stride );
mbn_8x8 = i_edge > 0 ? mb_8x8 : ( i_dir == 0 ? mb_8x8 - 2 : mb_8x8 - 2 * s8x8 );
mbn_4x4 = i_edge > 0 ? mb_4x4 : ( i_dir == 0 ? mb_4x4 - 4 : mb_4x4 - 4 * s4x4 );
if( b_interlaced && i_edge == 0 && i_dir == 1 )
{
mbn_xy -= h->mb.i_mb_stride;
mbn_8x8 -= 2 * s8x8;
mbn_4x4 -= 4 * s4x4;
}
/* *** 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 && !(b_interlaced && i_dir) ? 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;
}
else
{
/* 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 + (h->sh.i_type == SLICE_TYPE_B); l++ )
{
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] ) >= mvy_limit )
{
bS[i] = 1;
break;
}
}
}
}
}
/* *** filter *** */
/* Y plane */
i_qp = h->mb.qp[mb_xy];
i_qpn= h->mb.qp[mbn_xy];
if( i_dir == 0 )
{
/* vertical edge */
deblock_edge( h, &h->fdec->plane[0][i_pix_y[0] + 4*i_edge],
i_stride2[0], bS, (i_qp+i_qpn+1) >> 1, 0,
h->loopf.deblock_h_luma, h->loopf.deblock_h_luma_intra );
if( !(i_edge & 1) )
{
/* 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;
deblock_edge( h, &h->fdec->plane[1][i_pix_y[1] + 2*i_edge],
i_stride2[1], bS, i_qpc, 1,
h->loopf.deblock_h_chroma, h->loopf.deblock_h_chroma_intra );
deblock_edge( h, &h->fdec->plane[2][i_pix_y[2] + 2*i_edge],
i_stride2[2], bS, i_qpc, 1,
h->loopf.deblock_h_chroma, h->loopf.deblock_h_chroma_intra );
}
}
else
{
/* horizontal edge */
deblock_edge( h, &h->fdec->plane[0][i_pix_y[0] + 4*i_edge*i_stride2[0]],
i_stride2[0], bS, (i_qp+i_qpn+1) >> 1, 0,
h->loopf.deblock_v_luma, h->loopf.deblock_v_luma_intra );
/* U/V planes */
if( !(i_edge & 1) )
{
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;
deblock_edge( h, &h->fdec->plane[1][i_pix_y[1] + 2*i_edge*i_stride2[1]],
i_stride2[1], bS, i_qpc, 1,
h->loopf.deblock_v_chroma, h->loopf.deblock_v_chroma_intra );
deblock_edge( h, &h->fdec->plane[2][i_pix_y[2] + 2*i_edge*i_stride2[2]],
i_stride2[2], bS, i_qpc, 1,
h->loopf.deblock_v_chroma, h->loopf.deblock_v_chroma_intra );
}
}
}
}
/* next mb */
if( !b_interlaced || (mb_y&1) )
mb_x++;
mb_y ^= b_interlaced;
}
if( !h->pps->b_cabac && h->pps->b_transform_8x8_mode )
munge_cavlc_nnz( h, mb_y, h->mb.nnz_backup, restore_cavlc_nnz_row );
}
void x264_frame_deblock( x264_t *h )
{
int mb_y;
for( mb_y = 0; mb_y < h->sps->i_mb_height; mb_y += 1 + h->sh.b_mbaff )
x264_frame_deblock_row( h, mb_y );
}
#ifdef HAVE_MMX
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
#endif
#ifdef ARCH_PPC
void x264_deblock_v_luma_altivec( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
void x264_deblock_h_luma_altivec( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 );
#endif // ARCH_PPC
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;
#ifdef HAVE_MMX
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;
#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
}
#endif
#ifdef ARCH_PPC
if( cpu&X264_CPU_ALTIVEC )
{
pf->deblock_v_luma = x264_deblock_v_luma_altivec;
pf->deblock_h_luma = x264_deblock_h_luma_altivec;
}
#endif // ARCH_PPC
}
/* threading */
#ifdef HAVE_PTHREAD
void x264_frame_cond_broadcast( x264_frame_t *frame, int i_lines_completed )
{
x264_pthread_mutex_lock( &frame->mutex );
frame->i_lines_completed = i_lines_completed;
x264_pthread_cond_broadcast( &frame->cv );
x264_pthread_mutex_unlock( &frame->mutex );
}
void x264_frame_cond_wait( x264_frame_t *frame, int i_lines_completed )
{
x264_pthread_mutex_lock( &frame->mutex );
while( frame->i_lines_completed < i_lines_completed )
x264_pthread_cond_wait( &frame->cv, &frame->mutex );
x264_pthread_mutex_unlock( &frame->mutex );
}
#else
void x264_frame_cond_broadcast( x264_frame_t *frame, int i_lines_completed )
{}
void x264_frame_cond_wait( x264_frame_t *frame, int i_lines_completed )
{}
#endif
/* list operators */
void x264_frame_push( x264_frame_t **list, x264_frame_t *frame )
{
int i = 0;
while( list[i] ) i++;
list[i] = frame;
}
x264_frame_t *x264_frame_pop( x264_frame_t **list )
{
x264_frame_t *frame;
int i = 0;
assert( list[0] );
while( list[i+1] ) i++;
frame = list[i];
list[i] = NULL;
return frame;
}
void x264_frame_unshift( x264_frame_t **list, x264_frame_t *frame )
{
int i = 0;
while( list[i] ) i++;
while( i-- )
list[i+1] = list[i];
list[0] = frame;
}
x264_frame_t *x264_frame_shift( x264_frame_t **list )
{
x264_frame_t *frame = list[0];
int i;
for( i = 0; list[i]; i++ )
list[i] = list[i+1];
assert(frame);
return frame;
}
void x264_frame_push_unused( x264_t *h, x264_frame_t *frame )
{
assert( frame->i_reference_count > 0 );
frame->i_reference_count--;
if( frame->i_reference_count == 0 )
x264_frame_push( h->frames.unused, frame );
assert( h->frames.unused[ sizeof(h->frames.unused) / sizeof(*h->frames.unused) - 1 ] == NULL );
}
x264_frame_t *x264_frame_pop_unused( x264_t *h )
{
x264_frame_t *frame;
if( h->frames.unused[0] )
frame = x264_frame_pop( h->frames.unused );
else
frame = x264_frame_new( h );
assert( frame->i_reference_count == 0 );
frame->i_reference_count = 1;
return frame;
}
void x264_frame_sort( x264_frame_t **list, int b_dts )
{
int i, b_ok;
do {
b_ok = 1;
for( i = 0; list[i+1]; i++ )
{
int dtype = list[i]->i_type - list[i+1]->i_type;
int dtime = list[i]->i_frame - list[i+1]->i_frame;
int swap = b_dts ? dtype > 0 || ( dtype == 0 && dtime > 0 )
: dtime > 0;
if( swap )
{
XCHG( x264_frame_t*, list[i], list[i+1] );
b_ok = 0;
}
}
} while( !b_ok );
}