* H.264 IDCT
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
+
/**
- * @file h264-idct.c
+ * @file
* H.264 IDCT.
* @author Michael Niedermayer <michaelni@gmx.at>
*/
-
-#include "dsputil.h"
-
-static always_inline void idct_internal(uint8_t *dst, DCTELEM *block, int stride, int block_stride, int shift, int add){
- int i;
- uint8_t *cm = cropTbl + MAX_NEG_CROP;
-
- block[0] += 1<<(shift-1);
-
- for(i=0; i<4; i++){
- const int z0= block[0 + block_stride*i] + block[2 + block_stride*i];
- const int z1= block[0 + block_stride*i] - block[2 + block_stride*i];
- const int z2= (block[1 + block_stride*i]>>1) - block[3 + block_stride*i];
- const int z3= block[1 + block_stride*i] + (block[3 + block_stride*i]>>1);
-
- block[0 + block_stride*i]= z0 + z3;
- block[1 + block_stride*i]= z1 + z2;
- block[2 + block_stride*i]= z1 - z2;
- block[3 + block_stride*i]= z0 - z3;
- }
-
- for(i=0; i<4; i++){
- const int z0= block[i + block_stride*0] + block[i + block_stride*2];
- const int z1= block[i + block_stride*0] - block[i + block_stride*2];
- const int z2= (block[i + block_stride*1]>>1) - block[i + block_stride*3];
- const int z3= block[i + block_stride*1] + (block[i + block_stride*3]>>1);
- dst[i + 0*stride]= cm[ add*dst[i + 0*stride] + ((z0 + z3) >> shift) ];
- dst[i + 1*stride]= cm[ add*dst[i + 1*stride] + ((z1 + z2) >> shift) ];
- dst[i + 2*stride]= cm[ add*dst[i + 2*stride] + ((z1 - z2) >> shift) ];
- dst[i + 3*stride]= cm[ add*dst[i + 3*stride] + ((z0 - z3) >> shift) ];
- }
-}
+#include "h264idct.h"
-void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride){
- idct_internal(dst, block, stride, 4, 6, 1);
-}
+#define BIT_DEPTH 8
+#include "h264idct_template.c"
+#undef BIT_DEPTH
-void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block){
- idct_internal(dst, block, stride, 8, 3, 1);
-}
+#define BIT_DEPTH 9
+#include "h264idct_template.c"
+#undef BIT_DEPTH
-void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block){
- idct_internal(dst, block, stride, 8, 3, 0);
-}
+#define BIT_DEPTH 10
+#include "h264idct_template.c"
+#undef BIT_DEPTH