doxygen/trunk/h264qpel_8h_source.html

 /*
  * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
  * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg 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 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */

 #ifndef AVCODEC_H264QPEL_H
 #define AVCODEC_H264QPEL_H

 #include "qpeldsp.h"

 typedef struct H264QpelContext {
     qpel_mc_func put_h264_qpel_pixels_tab[4][16];
     qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
 } H264QpelContext;

 void ff_h264qpel_init(H264QpelContext *c, int bit_depth);

 void ff_h264qpel_init_aarch64(H264QpelContext *c, int bit_depth);
 void ff_h264qpel_init_arm(H264QpelContext *c, int bit_depth);
 void ff_h264qpel_init_ppc(H264QpelContext *c, int bit_depth);
 void ff_h264qpel_init_x86(H264QpelContext *c, int bit_depth);
 void ff_h264qpel_init_mips(H264QpelContext *c, int bit_depth);

 #endif /* AVCODEC_H264QPEL_H */
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32

qpeldsp.h
quarterpel DSP functions

H264QpelContext::avg_h264_qpel_pixels_tab
qpel_mc_func avg_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:29

H264QpelContext
Definition: h264qpel.h:27

qpel_mc_func
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65

ff_h264qpel_init
void ff_h264qpel_init(H264QpelContext *c, int bit_depth)
Definition: h264qpel.c:49

H264QpelContext::put_h264_qpel_pixels_tab
qpel_mc_func put_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:28

bit_depth
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:254

ff_h264qpel_init_mips
void ff_h264qpel_init_mips(H264QpelContext *c, int bit_depth)
Definition: h264qpel_init_mips.c:25

ff_h264qpel_init_aarch64
void ff_h264qpel_init_aarch64(H264QpelContext *c, int bit_depth)
Definition: h264qpel_init_aarch64.c:98

ff_h264qpel_init_ppc
void ff_h264qpel_init_ppc(H264QpelContext *c, int bit_depth)
Definition: h264qpel.c:283

ff_h264qpel_init_arm
void ff_h264qpel_init_arm(H264QpelContext *c, int bit_depth)
Definition: h264qpel_init_arm.c:97

ff_h264qpel_init_x86
void ff_h264qpel_init_x86(H264QpelContext *c, int bit_depth)
Definition: h264_qpel.c:541