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* |
* |
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* Copyright(C) 2002 Peter Ross <pross@xvid.org> |
* Copyright(C) 2002 Peter Ross <pross@xvid.org> |
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* |
* |
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* This program is an implementation of a part of one or more MPEG-4 |
* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* XviD is free software; you can redistribute it and/or modify it |
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* it under the terms of the GNU General Public License as published by |
* under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
* (at your option) any later version. |
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* |
* |
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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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* Under section 8 of the GNU General Public License, the copyright |
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* holders of XVID explicitly forbid distribution in the following |
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* countries: |
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* |
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* - Japan |
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* - United States of America |
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* |
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* Linking XviD statically or dynamically with other modules is making a |
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* combined work based on XviD. Thus, the terms and conditions of the |
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* GNU General Public License cover the whole combination. |
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* |
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* As a special exception, the copyright holders of XviD give you |
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* permission to link XviD with independent modules that communicate with |
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* XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
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* license terms of these independent modules, and to copy and distribute |
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* the resulting combined work under terms of your choice, provided that |
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* every copy of the combined work is accompanied by a complete copy of |
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* the source code of XviD (the version of XviD used to produce the |
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* combined work), being distributed under the terms of the GNU General |
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* Public License plus this exception. An independent module is a module |
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* which is not derived from or based on XviD. |
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* |
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* Note that people who make modified versions of XviD are not obligated |
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* to grant this special exception for their modified versions; it is |
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* their choice whether to do so. The GNU General Public License gives |
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* permission to release a modified version without this exception; this |
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* exception also makes it possible to release a modified version which |
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* carries forward this exception. |
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* |
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* $Id$ |
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* |
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****************************************************************************/ |
****************************************************************************/ |
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#include "../utils/mem_transfer.h" |
#include "../utils/mem_transfer.h" |
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INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; |
INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; |
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INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; |
INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; |
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void interpolate8x8_lowpass_h(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); |
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void interpolate8x8_lowpass_v(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); |
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void interpolate8x8_lowpass_hv(uint8_t *dst1, uint8_t *dst2, uint8_t *src, int32_t dst1_stride, int32_t dst2_stride, int32_t src_stride, int32_t rounding); |
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void interpolate8x8_bilinear2(uint8_t *dst, uint8_t *src1, uint8_t *src2, int32_t dst_stride, int32_t src_stride, int32_t rounding); |
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void interpolate8x8_bilinear4(uint8_t *dst, uint8_t *src1, uint8_t *src2, uint8_t *src3, uint8_t *src4, int32_t stride, int32_t rounding); |
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void interpolate8x8_c(uint8_t * const dst, |
void interpolate8x8_c(uint8_t * const dst, |
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const uint8_t * const src, |
const uint8_t * const src, |
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const uint32_t x, |
const uint32_t x, |
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{ |
{ |
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int32_t ddx, ddy; |
int32_t ddx, ddy; |
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switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
switch (((dx & 1) << 1) + (dy & 1)) /* ((dx%2)?2:0)+((dy%2)?1:0) */ |
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{ |
{ |
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case 0: |
case 0: |
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ddx = dx / 2; |
ddx = dx / 2; |
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} |
} |
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} |
} |
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static __inline void interpolate8x8_quarterpel(uint8_t * const cur, |
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uint8_t * const refn, |
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const uint32_t x, const uint32_t y, |
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const int32_t dx, const int dy, |
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const uint32_t stride, |
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const uint32_t rounding) |
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{ |
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const int32_t xRef = x*4 + dx; |
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const int32_t yRef = y*4 + dy; |
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uint8_t *src, *dst; |
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int32_t x_int, y_int, x_frac, y_frac; |
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uint8_t halfpel_h[72]; |
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uint8_t halfpel_v[64]; |
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uint8_t halfpel_hv[64]; |
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x_int = xRef/4; |
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if (xRef < 0 && xRef % 4) |
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x_int--; |
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x_frac = xRef - (4*x_int); |
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y_int = yRef/4; |
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if (yRef < 0 && yRef % 4) |
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y_int--; |
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y_frac = yRef - (4*y_int); |
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src = refn + y_int * stride + x_int; |
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dst = cur + y * stride + x; |
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switch((y_frac << 2) | (x_frac)) { |
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case 0: |
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transfer8x8_copy(dst, src, stride); |
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break; |
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case 1: |
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interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, src, halfpel_h, stride, stride, rounding); |
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break; |
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case 2: |
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interpolate8x8_lowpass_h(dst, src, stride, stride, rounding); |
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break; |
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case 3: |
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interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, src+1, halfpel_h, stride, stride, rounding); |
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break; |
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case 4: |
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interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, src, halfpel_v, stride, stride, rounding); |
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break; |
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case 5: |
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interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear4(dst, src, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); |
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break; |
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case 6: |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, halfpel_h, halfpel_hv, stride, 8, 1-rounding); |
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break; |
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case 7: |
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interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear4(dst, src+1, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); |
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break; |
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case 8: |
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interpolate8x8_lowpass_v(dst, src, stride, stride, rounding); |
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break; |
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case 9: |
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interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, 16-rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); |
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break; |
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case 10: |
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interpolate8x8_lowpass_hv(dst, halfpel_h, src, stride, 8, stride, rounding); |
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break; |
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case 11: |
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interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); |
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break; |
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case 12: |
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interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, src+stride, halfpel_v, stride, stride, rounding); |
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break; |
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case 13: |
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interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear4(dst, src+stride, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); |
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break; |
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case 14: |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear2(dst, halfpel_h+8, halfpel_hv, stride, 8, rounding); |
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break; |
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case 15: |
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interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, rounding); |
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interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); |
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interpolate8x8_bilinear4(dst, src+stride+1, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); |
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break; |
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} |
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} |
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