frame.c
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上传日期:2021-12-09
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文件大小:34k
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Audio
开发平台:
Visual C++
- /*****************************************************************************
- * frame.c: h264 encoder library
- *****************************************************************************
- * Copyright (C) 2003-2008 x264 project
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Loren Merritt <lorenm@u.washington.edu>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
- *****************************************************************************/
- #include "common.h"
- #define ALIGN(x,a) (((x)+((a)-1))&~((a)-1))
- 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, i_width, i_lines;
- int i_padv = PADV << h->param.b_interlaced;
- int luma_plane_size;
- int align = h->param.cpu&X264_CPU_CACHELINE_64 ? 64 : h->param.cpu&X264_CPU_CACHELINE_32 ? 32 : 16;
- if( !frame ) return NULL;
- memset( frame, 0, sizeof(x264_frame_t) );
- /* allocate frame data (+64 for extra data for me) */
- i_width = ALIGN( h->param.i_width, 16 );
- i_stride = ALIGN( i_width + 2*PADH, align );
- i_lines = ALIGN( h->param.i_height, 16<<h->param.b_interlaced );
- frame->i_plane = 3;
- for( i = 0; i < 3; i++ )
- {
- frame->i_stride[i] = i_stride >> !!i;
- frame->i_width[i] = i_width >> !!i;
- frame->i_lines[i] = i_lines >> !!i;
- }
- luma_plane_size = (frame->i_stride[0] * ( frame->i_lines[0] + 2*i_padv ));
- for( i = 1; i < 3; i++ )
- {
- CHECKED_MALLOC( frame->buffer[i], luma_plane_size/4 );
- frame->plane[i] = frame->buffer[i] + (frame->i_stride[i] * i_padv + PADH)/2;
- }
- /* all 4 luma planes allocated together, since the cacheline split code
- * requires them to be in-phase wrt cacheline alignment. */
- CHECKED_MALLOC( frame->buffer[0], 4*luma_plane_size);
- for( i = 0; i < 4; i++ )
- frame->filtered[i] = frame->buffer[0] + i*luma_plane_size + frame->i_stride[0] * i_padv + PADH;
- frame->plane[0] = frame->filtered[0];
- if( h->frames.b_have_lowres )
- {
- frame->i_width_lowres = frame->i_width[0]/2;
- frame->i_stride_lowres = ALIGN( frame->i_width_lowres + 2*PADH, align );
- frame->i_lines_lowres = frame->i_lines[0]/2;
- luma_plane_size = frame->i_stride_lowres * ( frame->i_lines[0]/2 + 2*i_padv );
- CHECKED_MALLOC( frame->buffer_lowres[0], 4 * luma_plane_size );
- for( i = 0; i < 4; i++ )
- frame->lowres[i] = frame->buffer_lowres[0] + (frame->i_stride_lowres * i_padv + PADH) + i * luma_plane_size;
- }
- if( h->param.analyse.i_me_method >= X264_ME_ESA )
- {
- CHECKED_MALLOC( frame->buffer[3],
- 2 * frame->i_stride[0] * (frame->i_lines[0] + 2*i_padv) * sizeof(uint16_t) );
- frame->integral = (uint16_t*)frame->buffer[3] + 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 < 4; 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 );
- }
- int 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;
- int i;
- if( i_csp != X264_CSP_I420 && i_csp != X264_CSP_YV12 )
- {
- x264_log( h, X264_LOG_ERROR, "Arg invalid CSPn" );
- return -1;
- }
- dst->i_type = src->i_type;
- dst->i_qpplus1 = src->i_qpplus1;
- dst->i_pts = src->i_pts;
- for( i=0; i<3; i++ )
- {
- int s = (i_csp == X264_CSP_YV12 && i) ? i^3 : i;
- uint8_t *plane = src->img.plane[s];
- int stride = src->img.i_stride[s];
- int width = h->param.i_width >> !!i;
- int height = h->param.i_height >> !!i;
- if( src->img.i_csp & X264_CSP_VFLIP )
- {
- plane += (height-1)*stride;
- stride = -stride;
- }
- h->mc.plane_copy( dst->plane[i], dst->i_stride[i], plane, stride, width, height );
- }
- return 0;
- }
- 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,
- * but up to 3 of the horizontal ones may be wrong.
- 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 + 8;
- int height = b_end ? (16*(h->sps->i_mb_height - mb_y) >> h->sh.b_mbaff) + 16 : 16;
- int padh = PADH - 4;
- 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 - 4;
- 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 */
- static 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, nnz;
- for( x=0; x<h->sps->i_mb_width; x++ )
- {
- memcpy( buf+x, src+x, 16 );
- if( transform[x] )
- {
- nnz = src[x][0] | src[x][1];
- src[x][0] = src[x][1] = ((uint16_t)nnz ? 0x0101 : 0) + (nnz>>16 ? 0x01010000 : 0);
- nnz = src[x][2] | src[x][3];
- src[x][2] = src[x][3] = ((uint16_t)nnz ? 0x0101 : 0) + (nnz>>16 ? 0x01010000 : 0);
- }
- }
- }
- 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; x<h->sps->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 uint8_t i_alpha_table[52+12*2] =
- {
- 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, 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,
- 255,255,255,255,255,255,255,255,255,255,255,255,
- };
- static const uint8_t i_beta_table[52+12*2] =
- {
- 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, 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,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- };
- static const int8_t i_tc0_table[52+12*2][4] =
- {
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },
- {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },
- {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },
- {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },
- {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },
- {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },
- {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },
- {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
- {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
- };
- #define alpha_table(x) i_alpha_table[(x)+12]
- #define beta_table(x) i_beta_table[(x)+12]
- #define tc0_table(x) i_tc0_table[(x)+12]
- /* From ffmpeg */
- 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] = x264_clip_uint8( p0 + delta ); /* p0' */
- pix[ 0*xstride] = x264_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] = x264_clip_uint8( p0 + delta ); /* p0' */
- pix[ 0*xstride] = x264_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 ) /* p0', p1', p2' */
- {
- const int p3 = pix[-4*xstride];
- 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 ) /* q0', q1', q2' */
- {
- const int q3 = pix[3*xstride];
- 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 *pix1, uint8_t *pix2, int i_stride, uint8_t bS[4], int i_qp, int b_chroma, x264_deblock_inter_t pf_inter )
- {
- const int index_a = i_qp + h->sh.i_alpha_c0_offset;
- const int alpha = alpha_table(index_a);
- const int beta = beta_table(i_qp + h->sh.i_beta_offset);
- int8_t tc[4];
- if( !alpha || !beta )
- return;
- tc[0] = tc0_table(index_a)[bS[0]] + b_chroma;
- tc[1] = tc0_table(index_a)[bS[1]] + b_chroma;
- tc[2] = tc0_table(index_a)[bS[2]] + b_chroma;
- tc[3] = tc0_table(index_a)[bS[3]] + b_chroma;
- pf_inter( pix1, i_stride, alpha, beta, tc );
- if( b_chroma )
- pf_inter( pix2, i_stride, alpha, beta, tc );
- }
- static inline void deblock_edge_intra( x264_t *h, uint8_t *pix1, uint8_t *pix2, int i_stride, uint8_t bS[4], int i_qp, int b_chroma, x264_deblock_intra_t pf_intra )
- {
- const int alpha = alpha_table(i_qp + h->sh.i_alpha_c0_offset);
- const int beta = beta_table(i_qp + h->sh.i_beta_offset);
- if( !alpha || !beta )
- return;
- pf_intra( pix1, i_stride, alpha, beta );
- if( b_chroma )
- pf_intra( pix2, 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;
- const int qp_thresh = 15 - X264_MIN(h->sh.i_alpha_c0_offset, h->sh.i_beta_offset) - X264_MAX(0, h->param.analyse.i_chroma_qp_offset);
- int mb_x;
- int stridey = h->fdec->i_stride[0];
- int stride2y = stridey << b_interlaced;
- int strideuv = h->fdec->i_stride[1];
- int stride2uv = strideuv << 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; mb_x += (~b_interlaced | mb_y)&1, mb_y ^= b_interlaced )
- {
- 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_qp = h->mb.qp[mb_xy];
- int i_edge_end = (h->mb.type[mb_xy] == P_SKIP) ? 1 : 4;
- uint8_t *pixy = h->fdec->plane[0] + 16*mb_y*stridey + 16*mb_x;
- uint8_t *pixu = h->fdec->plane[1] + 8*mb_y*strideuv + 8*mb_x;
- uint8_t *pixv = h->fdec->plane[2] + 8*mb_y*strideuv + 8*mb_x;
- if( b_interlaced && (mb_y&1) )
- {
- pixy -= 15*stridey;
- pixu -= 7*strideuv;
- pixv -= 7*strideuv;
- }
- x264_prefetch_fenc( h, h->fdec, mb_x, mb_y );
- if( i_qp <= qp_thresh )
- i_edge_end = 1;
- #define FILTER_DIR(intra, i_dir)
- {
- /* Y plane */
- i_qpn= h->mb.qp[mbn_xy];
- if( i_dir == 0 )
- {
- /* vertical edge */
- deblock_edge##intra( h, pixy + 4*i_edge, NULL,
- stride2y, bS, (i_qp+i_qpn+1) >> 1, 0,
- h->loopf.deblock_h_luma##intra );
- if( !(i_edge & 1) )
- {
- /* U/V planes */
- int i_qpc = (h->chroma_qp_table[i_qp] + h->chroma_qp_table[i_qpn] + 1) >> 1;
- deblock_edge##intra( h, pixu + 2*i_edge, pixv + 2*i_edge,
- stride2uv, bS, i_qpc, 1,
- h->loopf.deblock_h_chroma##intra );
- }
- }
- else
- {
- /* horizontal edge */
- deblock_edge##intra( h, pixy + 4*i_edge*stride2y, NULL,
- stride2y, bS, (i_qp+i_qpn+1) >> 1, 0,
- h->loopf.deblock_v_luma##intra );
- /* U/V planes */
- if( !(i_edge & 1) )
- {
- int i_qpc = (h->chroma_qp_table[i_qp] + h->chroma_qp_table[i_qpn] + 1) >> 1;
- deblock_edge##intra( h, pixu + 2*i_edge*stride2uv, pixv + 2*i_edge*stride2uv,
- stride2uv, bS, i_qpc, 1,
- h->loopf.deblock_v_chroma##intra );
- }
- }
- }
- #define DEBLOCK_STRENGTH(i_dir)
- {
- /* *** Get bS for each 4px for the current edge *** */
- if( IS_INTRA( h->mb.type[mb_xy] ) || IS_INTRA( h->mb.type[mbn_xy]) )
- *(uint32_t*)bS = 0x03030303;
- else
- {
- *(uint32_t*)bS = 0x00000000;
- for( i = 0; i < 4; i++ )
- {
- int x = i_dir == 0 ? i_edge : i;
- int y = i_dir == 0 ? i : i_edge;
- int xn = i_dir == 0 ? (x - 1)&0x03 : x;
- int yn = i_dir == 0 ? y : (y - 1)&0x03;
- if( h->mb.non_zero_count[mb_xy][x+y*4] != 0 ||
- h->mb.non_zero_count[mbn_xy][xn+yn*4] != 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>>1)+(y>>1)*s8x8;
- int i8q= mbn_8x8+(xn>>1)+(yn>>1)*s8x8;
- int i4p= mb_4x4+x+y*s4x4;
- int i4q= mbn_4x4+xn+yn*s4x4;
- 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;
- }
- }
- }
- }
- }
- /* i_dir == 0 -> vertical edge
- * i_dir == 1 -> horizontal edge */
- #define DEBLOCK_DIR(i_dir)
- {
- int i_edge = (i_dir ? (mb_y <= b_interlaced) : (mb_x == 0));
- int i_qpn, i, l, mbn_xy, mbn_8x8, mbn_4x4;
- DECLARE_ALIGNED_4( uint8_t bS[4] ); /* filtering strength */
- if( i_edge )
- i_edge+= b_8x8_transform;
- else
- {
- mbn_xy = i_dir == 0 ? mb_xy - 1 : mb_xy - h->mb.i_mb_stride;
- mbn_8x8 = i_dir == 0 ? mb_8x8 - 2 : mb_8x8 - 2 * s8x8;
- mbn_4x4 = i_dir == 0 ? mb_4x4 - 4 : mb_4x4 - 4 * s4x4;
- if( b_interlaced && i_dir == 1 )
- {
- mbn_xy -= h->mb.i_mb_stride;
- mbn_8x8 -= 2 * s8x8;
- mbn_4x4 -= 4 * s4x4;
- }
- else if( IS_INTRA( h->mb.type[mb_xy] ) || IS_INTRA( h->mb.type[mbn_xy]) )
- {
- FILTER_DIR( _intra, i_dir );
- goto end##i_dir;
- }
- DEBLOCK_STRENGTH(i_dir);
- if( *(uint32_t*)bS )
- FILTER_DIR( , i_dir);
- end##i_dir:
- i_edge += b_8x8_transform+1;
- }
- mbn_xy = mb_xy;
- mbn_8x8 = mb_8x8;
- mbn_4x4 = mb_4x4;
- for( ; i_edge < i_edge_end; i_edge+=b_8x8_transform+1 )
- {
- DEBLOCK_STRENGTH(i_dir);
- if( *(uint32_t*)bS )
- FILTER_DIR( , i_dir);
- }
- }
- DEBLOCK_DIR(0);
- DEBLOCK_DIR(1);
- }
- 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 );
- 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 );
- void x264_deblock_v_luma_intra_sse2( uint8_t *pix, int stride, int alpha, int beta );
- void x264_deblock_h_luma_intra_sse2( uint8_t *pix, int stride, int alpha, int beta );
- #ifdef ARCH_X86
- 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_h_luma_intra_mmxext( uint8_t *pix, int stride, int alpha, int beta );
- void x264_deblock_v8_luma_intra_mmxext( uint8_t *pix, int stride, int alpha, int beta );
- static 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 );
- }
- static void x264_deblock_v_luma_intra_mmxext( uint8_t *pix, int stride, int alpha, int beta )
- {
- x264_deblock_v8_luma_intra_mmxext( pix, stride, alpha, beta );
- x264_deblock_v8_luma_intra_mmxext( pix+8, stride, alpha, beta );
- }
- #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
- pf->deblock_v_luma = x264_deblock_v_luma_mmxext;
- pf->deblock_h_luma = x264_deblock_h_luma_mmxext;
- pf->deblock_v_luma_intra = x264_deblock_v_luma_intra_mmxext;
- pf->deblock_h_luma_intra = x264_deblock_h_luma_intra_mmxext;
- #endif
- if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_STACK_MOD4) )
- {
- pf->deblock_v_luma = x264_deblock_v_luma_sse2;
- pf->deblock_h_luma = x264_deblock_h_luma_sse2;
- pf->deblock_v_luma_intra = x264_deblock_v_luma_intra_sse2;
- pf->deblock_h_luma_intra = x264_deblock_h_luma_intra_sse2;
- }
- }
- #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 */
- 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 );
- }
- /* 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 );
- }