mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 19:30:05 +00:00
Move libm replacements to new header libm.h
ffmpeg.c uses lrintf(), which is missing on some systems. Previously it picked up the replacement via libavutil/internal.h due to HAVE_AV_CONFIG_H being erroneously defined. Moving these replacements to a separate header enables ffmpeg.c to use them without being exposed to internal interfaces. This use of a non-public header is justified by the header in question not being part of the internal interface either. It should rather be considered as part of the build system, which is shared between the libraries and the applications. This header cannot be installed since the tested conditions depend on the compiler. Originally committed as revision 22399 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård
parent
03f8fc0897
commit
335ee1aadd
1
ffmpeg.c
1
ffmpeg.c
@ -40,6 +40,7 @@
|
||||
#include "libavutil/fifo.h"
|
||||
#include "libavutil/pixdesc.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/libm.h"
|
||||
#include "libavformat/os_support.h"
|
||||
|
||||
#if HAVE_SYS_RESOURCE_H
|
||||
|
||||
@ -192,65 +192,7 @@
|
||||
}\
|
||||
}
|
||||
|
||||
#if !HAVE_EXP2
|
||||
#undef exp2
|
||||
#define exp2(x) exp((x) * 0.693147180559945)
|
||||
#endif /* HAVE_EXP2 */
|
||||
|
||||
#if !HAVE_EXP2F
|
||||
#undef exp2f
|
||||
#define exp2f(x) ((float)exp2(x))
|
||||
#endif /* HAVE_EXP2F */
|
||||
|
||||
#if !HAVE_LLRINT
|
||||
#undef llrint
|
||||
#define llrint(x) ((long long)rint(x))
|
||||
#endif /* HAVE_LLRINT */
|
||||
|
||||
#if !HAVE_LOG2
|
||||
#undef log2
|
||||
#define log2(x) (log(x) * 1.44269504088896340736)
|
||||
#endif /* HAVE_LOG2 */
|
||||
|
||||
#if !HAVE_LOG2F
|
||||
#undef log2f
|
||||
#define log2f(x) ((float)log2(x))
|
||||
#endif /* HAVE_LOG2F */
|
||||
|
||||
#if !HAVE_LRINT
|
||||
static av_always_inline av_const long int lrint(double x)
|
||||
{
|
||||
return rint(x);
|
||||
}
|
||||
#endif /* HAVE_LRINT */
|
||||
|
||||
#if !HAVE_LRINTF
|
||||
static av_always_inline av_const long int lrintf(float x)
|
||||
{
|
||||
return (int)(rint(x));
|
||||
}
|
||||
#endif /* HAVE_LRINTF */
|
||||
|
||||
#if !HAVE_ROUND
|
||||
static av_always_inline av_const double round(double x)
|
||||
{
|
||||
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
|
||||
}
|
||||
#endif /* HAVE_ROUND */
|
||||
|
||||
#if !HAVE_ROUNDF
|
||||
static av_always_inline av_const float roundf(float x)
|
||||
{
|
||||
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
|
||||
}
|
||||
#endif /* HAVE_ROUNDF */
|
||||
|
||||
#if !HAVE_TRUNCF
|
||||
static av_always_inline av_const float truncf(float x)
|
||||
{
|
||||
return (x > 0) ? floor(x) : ceil(x);
|
||||
}
|
||||
#endif /* HAVE_TRUNCF */
|
||||
#include "libm.h"
|
||||
|
||||
/**
|
||||
* Returns NULL if CONFIG_SMALL is true, otherwise the argument
|
||||
|
||||
90
libavutil/libm.h
Normal file
90
libavutil/libm.h
Normal file
@ -0,0 +1,90 @@
|
||||
/*
|
||||
* 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
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file libavutil/libm.h
|
||||
* Replacements for frequently missing libm functions
|
||||
*/
|
||||
|
||||
#ifndef AVUTIL_LIBM_H
|
||||
#define AVUTIL_LIBM_H
|
||||
|
||||
#include <math.h>
|
||||
#include "config.h"
|
||||
|
||||
#if !HAVE_EXP2
|
||||
#undef exp2
|
||||
#define exp2(x) exp((x) * 0.693147180559945)
|
||||
#endif /* HAVE_EXP2 */
|
||||
|
||||
#if !HAVE_EXP2F
|
||||
#undef exp2f
|
||||
#define exp2f(x) ((float)exp2(x))
|
||||
#endif /* HAVE_EXP2F */
|
||||
|
||||
#if !HAVE_LLRINT
|
||||
#undef llrint
|
||||
#define llrint(x) ((long long)rint(x))
|
||||
#endif /* HAVE_LLRINT */
|
||||
|
||||
#if !HAVE_LOG2
|
||||
#undef log2
|
||||
#define log2(x) (log(x) * 1.44269504088896340736)
|
||||
#endif /* HAVE_LOG2 */
|
||||
|
||||
#if !HAVE_LOG2F
|
||||
#undef log2f
|
||||
#define log2f(x) ((float)log2(x))
|
||||
#endif /* HAVE_LOG2F */
|
||||
|
||||
#if !HAVE_LRINT
|
||||
static av_always_inline av_const long int lrint(double x)
|
||||
{
|
||||
return rint(x);
|
||||
}
|
||||
#endif /* HAVE_LRINT */
|
||||
|
||||
#if !HAVE_LRINTF
|
||||
static av_always_inline av_const long int lrintf(float x)
|
||||
{
|
||||
return (int)(rint(x));
|
||||
}
|
||||
#endif /* HAVE_LRINTF */
|
||||
|
||||
#if !HAVE_ROUND
|
||||
static av_always_inline av_const double round(double x)
|
||||
{
|
||||
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
|
||||
}
|
||||
#endif /* HAVE_ROUND */
|
||||
|
||||
#if !HAVE_ROUNDF
|
||||
static av_always_inline av_const float roundf(float x)
|
||||
{
|
||||
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
|
||||
}
|
||||
#endif /* HAVE_ROUNDF */
|
||||
|
||||
#if !HAVE_TRUNCF
|
||||
static av_always_inline av_const float truncf(float x)
|
||||
{
|
||||
return (x > 0) ? floor(x) : ceil(x);
|
||||
}
|
||||
#endif /* HAVE_TRUNCF */
|
||||
|
||||
#endif /* AVUTIL_LIBM_H */
|
||||
Loading…
Reference in New Issue
Block a user