x264_cabac_encode_decision( &h->cabac, 17, 1 );            }            else if( mb->i_partition == D_8x16 )            {                x264_cabac_encode_decision( &h->cabac, 14, 0 );                x264_cabac_encode_decision( &h->cabac, 15, 1 );                x264_cabac_encode_decision( &h->cabac, 17, 0 );            }        }        else if( mb->i_type == P_8x8 )        {            x264_cabac_encode_decision( &h->cabac, 14, 0 );            x264_cabac_encode_decision( &h->cabac, 15, 0 );            x264_cabac_encode_decision( &h->cabac, 16, 1 );        }        else if( mb->i_type == I_4x4 )        {            /* prefix */            x264_cabac_encode_decision( &h->cabac, 14, 1 );            x264_cabac_encode_decision( &h->cabac, 17, 0 );        }        else if( mb->i_type == I_PCM )        {            /* prefix */            x264_cabac_encode_decision( &h->cabac, 14, 1 );            x264_cabac_encode_decision( &h->cabac, 17, 1 );            x264_cabac_encode_terminal( &h->cabac, 1 ); /*ctxIdx == 276 */        }        else /* intra 16x16 */        {            /* prefix */            x264_cabac_encode_decision( &h->cabac, 14, 1 );            /* suffix */            x264_cabac_encode_decision( &h->cabac, 17, 1 );            x264_cabac_encode_terminal( &h->cabac, 0 ); /*ctxIdx == 276 */            x264_cabac_encode_decision( &h->cabac, 17+1, ( mb->i_cbp_luma == 0 ? 0 : 1 ));            if( mb->i_cbp_chroma == 0 )            {                x264_cabac_encode_decision( &h->cabac, 17+2, 0 );            }            else            {                x264_cabac_encode_decision( &h->cabac, 17+2, 1 );                x264_cabac_encode_decision( &h->cabac, 17+2, ( mb->i_cbp_chroma == 1 ? 0 : 1 ) );            }            x264_cabac_encode_decision( &h->cabac, 17+3, ( (mb->i_intra16x16_pred_mode / 2) ? 1 : 0 ));            x264_cabac_encode_decision( &h->cabac, 17+3, ( (mb->i_intra16x16_pred_mode % 2) ? 1 : 0 ));        }    }    else    {        fprintf( stderr, "SLICE_TYPE_B unsupported in x264_macroblock_write_cabac\n" );        return;    }}static void x264_cabac_mb_intra4x4_pred_mode( x264_t *h, x264_macroblock_t *mb, int i_pred, int i_mode ){    if( i_pred == i_mode )    {        /* b_prev_intra4x4_pred_mode */        x264_cabac_encode_decision( &h->cabac, 68, 1 );    }    else    {        /* b_prev_intra4x4_pred_mode */        x264_cabac_encode_decision( &h->cabac, 68, 0 );        if( i_mode > i_pred  )        {            i_mode--;        }        x264_cabac_encode_decision( &h->cabac, 69, (i_mode     )&0x01 );        x264_cabac_encode_decision( &h->cabac, 69, (i_mode >> 1)&0x01 );        x264_cabac_encode_decision( &h->cabac, 69, (i_mode >> 2)&0x01 );    }}static void x264_cabac_mb_intra8x8_pred_mode( x264_t *h, x264_macroblock_t *mb ){    x264_macroblock_t *mba = mb->context->mba;    x264_macroblock_t *mbb = mb->context->mbb;    int i_ctxIdxInc    = 0;    if( mba != NULL && ( mba->i_type == I_4x4 || mba->i_type == I_16x16 ) && mba->i_chroma_pred_mode != 0 )    {        i_ctxIdxInc++;    }    if( mbb != NULL && ( mbb->i_type == I_4x4 || mbb->i_type == I_16x16 ) && mbb->i_chroma_pred_mode != 0 )    {        i_ctxIdxInc++;    }    if( mb->i_chroma_pred_mode == 0 )    {        x264_cabac_encode_decision( &h->cabac, 64 + i_ctxIdxInc, 0 );    }    else    {        x264_cabac_encode_decision( &h->cabac, 64 + i_ctxIdxInc, 1 );        x264_cabac_encode_decision( &h->cabac, 64 + 3, ( mb->i_chroma_pred_mode == 1 ? 0 : 1 ) );        if( mb->i_chroma_pred_mode > 1 )        {            x264_cabac_encode_decision( &h->cabac, 64 + 3, ( mb->i_chroma_pred_mode == 2 ? 0 : 1 ) );        }    }}static void x264_cabac_mb_cbp_luma( x264_t *h, x264_macroblock_t *mb ){    int idx;    x264_macroblock_t *mba;    x264_macroblock_t *mbb;    for( idx = 0;idx < 16; idx+=4 )    {        int i_ctxIdxInc;        int i8x8a, i8x8b;        int x, y;        mba = mb->context->block[idx].mba;        mbb = mb->context->block[idx].mbb;        x = block_idx_x[idx]; y = block_idx_y[idx];        i8x8a = block_idx_xy[(x-1)&0x03][y]/4;        i8x8b = block_idx_xy[x][(y-1)&0x03]/4;        i_ctxIdxInc = 0;        if( mba != NULL && mba->i_type != I_PCM &&           ( IS_SKIP( mba->i_type ) || ((mba->i_cbp_luma >> i8x8a)&0x01) == 0 ) )        {            i_ctxIdxInc++;        }        if( mbb != NULL && mbb->i_type != I_PCM &&           ( IS_SKIP( mbb->i_type ) || ((mbb->i_cbp_luma >> i8x8b)&0x01) == 0 ) )        {            i_ctxIdxInc += 2;        }        x264_cabac_encode_decision( &h->cabac, 73 + i_ctxIdxInc, (mb->i_cbp_luma  >> (idx/4))&0x01 );    }}static void x264_cabac_mb_cbp_chroma( x264_t *h, x264_macroblock_t *mb ){    x264_macroblock_t *mba = mb->context->mba;    x264_macroblock_t *mbb = mb->context->mbb;    int i_ctxIdxInc = 0;    if( mba != NULL && !IS_SKIP( mba->i_type ) &&        ( mba->i_type == I_PCM || mba->i_cbp_chroma != 0 ) )    {        i_ctxIdxInc++;    }    if( mbb != NULL && !IS_SKIP( mbb->i_type ) &&        ( mbb->i_type == I_PCM || mbb->i_cbp_chroma != 0 ) )    {        i_ctxIdxInc += 2;    }    x264_cabac_encode_decision( &h->cabac, 77 + i_ctxIdxInc, (mb->i_cbp_chroma > 0 ? 1 : 0) );    if( mb->i_cbp_chroma > 0 )    {        i_ctxIdxInc = 4;        if( mba != NULL && !IS_SKIP( mba->i_type ) &&            ( mba->i_type == I_PCM || mba->i_cbp_chroma == 2 ) )        {            i_ctxIdxInc++;        }        if( mbb != NULL && !IS_SKIP( mbb->i_type ) &&            ( mbb->i_type == I_PCM || mbb->i_cbp_chroma == 2 ) )        {            i_ctxIdxInc += 2;        }        x264_cabac_encode_decision( &h->cabac, 77 + i_ctxIdxInc, (mb->i_cbp_chroma > 1 ? 1 : 0) );    }}/* TODO check it with != qp per mb */static void x264_cabac_mb_qp_delta( x264_t *h, x264_macroblock_t *mb ){    x264_macroblock_t *mbp = NULL;    int i_slice_qp =  h->pps->i_pic_init_qp + h->sh.i_qp_delta;    int i_last_dqp = 0;    int i_ctxIdxInc = 0;    int val;    if( mb->i_mb_x > 0 || mb->i_mb_y > 0 )    {        mbp = mb - 1;        if( mbp->i_mb_x > 0 || mbp->i_mb_y > 0 )        {            i_last_dqp = mbp->i_qp - (mbp-1)->i_qp;        }        else        {            i_last_dqp = mbp->i_qp - i_slice_qp;        }    }    if( mbp != NULL &&        !IS_SKIP( mbp->i_type ) && mbp->i_type != I_PCM &&        i_last_dqp != 0 &&        ( mbp->i_type == I_16x16 || mbp->i_cbp_luma != 0 || mbp->i_cbp_chroma != 0 ) )    {        i_ctxIdxInc = 1;    }    if( mbp )        val = (mb->i_qp - mbp->i_qp) <= 0 ? (-2*(mb->i_qp - mbp->i_qp)) : (2*(mb->i_qp - mbp->i_qp)-1);    else        val = (mb->i_qp - i_slice_qp) <= 0 ? (-2*(mb->i_qp -i_slice_qp)) : (2*(mb->i_qp - i_slice_qp)-1);    while( val > 0 )    {        x264_cabac_encode_decision( &h->cabac,  60 + i_ctxIdxInc, 1 );        if( i_ctxIdxInc < 2 )        {            i_ctxIdxInc = 2;        }        else        {            i_ctxIdxInc = 3;        }        val--;    }    x264_cabac_encode_decision( &h->cabac,  60 + i_ctxIdxInc, 0 );}static int x264_cabac_mb_cbf_ctxidxinc( x264_macroblock_t *mb, int i_ctxBlockCat, int i_idx ){    x264_mb_context_t *ctx = mb->context;    x264_macroblock_t *a = NULL;    x264_macroblock_t *b = NULL;    int i_nza = -1;    int i_nzb = -1;    int i_ctxIdxInc = 0;    if( i_ctxBlockCat == 0 )    {        a = ctx->mba;        b = ctx->mbb;        if( a !=NULL && a->i_type == I_16x16 )        {            i_nza = array_non_zero_count( a->luma16x16_dc, 16 );        }        if( b !=NULL && b->i_type == I_16x16 )        {            i_nzb = array_non_zero_count( b->luma16x16_dc, 16 );        }    }    else if( i_ctxBlockCat == 1 || i_ctxBlockCat == 2 )    {        int i8x8a, i8x8b;        int x, y;        a = ctx->block[i_idx].mba;        b = ctx->block[i_idx].mbb;        x = block_idx_x[i_idx];        y = block_idx_y[i_idx];        i8x8a = block_idx_xy[(x-1)&0x03][y]/4;        i8x8b = block_idx_xy[x][(y-1)&0x03]/4;        /* FIXME is &0x01 correct ? */        if( a != NULL && !IS_SKIP( a->i_type ) && a->i_type != I_PCM &&            ((a->i_cbp_luma >> i8x8a)) != 0 )        {            i_nza = ctx->block[i_idx].bka->i_non_zero_count;        }        if( b != NULL && !IS_SKIP( b->i_type ) && b->i_type != I_PCM &&            ((b->i_cbp_luma >>i8x8b)) != 0 )        {            i_nzb = ctx->block[i_idx].bkb->i_non_zero_count;        }    }    else if( i_ctxBlockCat == 3 )    {        a = ctx->mba;        b = ctx->mbb;        if( a != NULL && !IS_SKIP( a->i_type ) && a->i_type != I_PCM &&            a->i_cbp_chroma != 0 )        {            i_nza = array_non_zero_count( a->chroma_dc[i_idx], 4 );        }        if( b != NULL && !IS_SKIP( b->i_type ) && b->i_type != I_PCM &&            b->i_cbp_chroma != 0 )        {            i_nzb = array_non_zero_count( b->chroma_dc[i_idx], 4 );        }    }    else if( i_ctxBlockCat == 4 )    {        a = ctx->block[16+i_idx].mba;        b = ctx->block[16+i_idx].mbb;        if( a != NULL && !IS_SKIP( a->i_type ) && a->i_type != I_PCM &&            a->i_cbp_chroma == 2 )        {            i_nza = ctx->block[16+i_idx].bka->i_non_zero_count;        }        if( b != NULL && !IS_SKIP( b->i_type ) && b->i_type != I_PCM &&            b->i_cbp_chroma == 2 )        {            i_nzb = ctx->block[16+i_idx].bkb->i_non_zero_count;        }    }    if( ( a == NULL && IS_INTRA( mb->i_type ) ) || ( a != NULL && a->i_type == I_PCM ) || i_nza > 0 )    {        i_ctxIdxInc++;    }    if( ( b == NULL && IS_INTRA( mb->i_type ) ) || ( b != NULL && b->i_type == I_PCM ) || i_nzb > 0 )    {        i_ctxIdxInc += 2;    }    return i_ctxIdxInc + 4 * i_ctxBlockCat;}void x264_cabac_mb_skip( x264_t *h, x264_macroblock_t *mb, int b_skip ){    x264_macroblock_t *mba = mb->context->mba;    x264_macroblock_t *mbb = mb->context->mbb;    int i_ctxIdxInc = 0;    if( mba != NULL && !IS_SKIP( mba->i_type ) )    {        i_ctxIdxInc++;    }    if( mbb != NULL && !IS_SKIP( mbb->i_type ) )    {        i_ctxIdxInc++;    }    if( h->sh.i_type == SLICE_TYPE_P )    {        x264_cabac_encode_decision( &h->cabac, 11 + i_ctxIdxInc, b_skip ? 1 : 0 );    }    else /* SLICE_TYPE_B */    {        x264_cabac_encode_decision( &h->cabac, 24 + i_ctxIdxInc, b_skip ? 1 : 0 );    }}static void x264_cabac_mb_ref( x264_t *h, x264_macroblock_t *mb, int i_list, int i_part ){    x264_macroblock_t *a;    x264_macroblock_t *b;    int i_ctxIdxInc = 0;    int i_ref;    int i_refa = -1;    int i_refb = -1;    int x, y, xn, yn;    x264_mb_partition_getxy( mb, i_part, 0, &x, &y );    i_ref = mb->partition[x][y].i_ref[i_list];    /* Left  pixel (-1,0)*/    xn = x - 1;    a = mb;    if( xn < 0 )    {        xn += 4;        a = mb->context->mba;    }    if( a && !IS_INTRA( a->i_type ) )    {        i_refa = a->partition[xn][y].i_ref[i_list];    }    /* Up ( pixel(0,-1)*/    yn = y - 1;    b = mb;    if( yn < 0 )    {        yn += 4;        b = mb->context->mbb;    }    if( b && !IS_INTRA( b->i_type ) )    {        i_refb = b->partition[x][yn].i_ref[i_list];    }    /* FIXME not complete for B frame (B_DIRECT and B_DIRECT 8x8 sub */    if( i_refa > 0 && !IS_SKIP( a->i_type ) )    {        i_ctxIdxInc++;    }    if( i_refb > 0 && !IS_SKIP( b->i_type ) )    {        i_ctxIdxInc += 2;    }    while( i_ref > 0 )    {        x264_cabac_encode_decision( &h->cabac, 54 + i_ctxIdxInc, 1 );        if( i_ctxIdxInc < 4 )        {            i_ctxIdxInc = 4;        }        else        {            i_ctxIdxInc = 5;        }        i_ref--;    }    x264_cabac_encode_decision( &h->cabac, 54 + i_ctxIdxInc, 0 );}static void  x264_cabac_mb_mvd( x264_t *h, int i_ctx, int i_ctx_inc, int mvd ){    int i_abs = abs( mvd );    int i_prefix = X264_MIN( i_abs, 9 );    int i;    for( i = 0; i < i_prefix; i++ )    {        x264_cabac_encode_decision( &h->cabac, i_ctx + i_ctx_inc, 1 );        if( i_ctx_inc < 3 )        {            i_ctx_inc = 3;        }        else if( i_ctx_inc < 6 )        {            i_ctx_inc++;        }    }