mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-23 07:42:51 +00:00
7427d1ca4a
* qatar/master: g723.1: simplify scale_vector() g723.1: simplify normalize_bits() vda: cosmetics: fix Doxygen comment formatting vda: better frame allocation vda: Merge implementation into one file vda: support synchronous decoding vda: Reuse the bitstream buffer and reallocate it only if needed build: Factor out mpegvideo encoding dependencies to CONFIG_MPEGVIDEOENC avprobe: Include libm.h for the log2 fallback proresenc: use the edge emulation buffer rtmp: handle bytes read reports configure: Fix typo in mpeg2video/svq1 decoder dependency declaration Use log2(x) instead of log(x) / log(2) x86: swscale: fix fragile memory accesses x86: swscale: remove disabled code x86: yadif: fix asm with suncc x86: cabac: allow building with suncc x86: mlpdsp: avoid taking address of void ARM: intmath: use native-size return types for clipping functions Conflicts: configure ffprobe.c libavcodec/Makefile libavcodec/g723_1.c libavcodec/v210dec.h libavcodec/vda.h libavcodec/vda_h264.c libavcodec/x86/cabac.h libavfilter/x86/yadif_template.c libswscale/x86/rgb2rgb_template.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/*
|
|
* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
|
|
*
|
|
* 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 AVUTIL_ARM_INTMATH_H
|
|
#define AVUTIL_ARM_INTMATH_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "config.h"
|
|
#include "libavutil/attributes.h"
|
|
|
|
#if HAVE_INLINE_ASM
|
|
|
|
#if HAVE_ARMV6
|
|
|
|
#define FASTDIV FASTDIV
|
|
static av_always_inline av_const int FASTDIV(int a, int b)
|
|
{
|
|
int r;
|
|
__asm__ ("cmp %2, #2 \n\t"
|
|
"ldr %0, [%3, %2, lsl #2] \n\t"
|
|
"ite le \n\t"
|
|
"lsrle %0, %1, #1 \n\t"
|
|
"smmulgt %0, %0, %1 \n\t"
|
|
: "=&r"(r) : "r"(a), "r"(b), "r"(ff_inverse) : "cc");
|
|
return r;
|
|
}
|
|
|
|
#define av_clip_uint8 av_clip_uint8_arm
|
|
static av_always_inline av_const unsigned av_clip_uint8_arm(int a)
|
|
{
|
|
unsigned x;
|
|
__asm__ ("usat %0, #8, %1" : "=r"(x) : "r"(a));
|
|
return x;
|
|
}
|
|
|
|
#define av_clip_int8 av_clip_int8_arm
|
|
static av_always_inline av_const int av_clip_int8_arm(int a)
|
|
{
|
|
int x;
|
|
__asm__ ("ssat %0, #8, %1" : "=r"(x) : "r"(a));
|
|
return x;
|
|
}
|
|
|
|
#define av_clip_uint16 av_clip_uint16_arm
|
|
static av_always_inline av_const unsigned av_clip_uint16_arm(int a)
|
|
{
|
|
unsigned x;
|
|
__asm__ ("usat %0, #16, %1" : "=r"(x) : "r"(a));
|
|
return x;
|
|
}
|
|
|
|
#define av_clip_int16 av_clip_int16_arm
|
|
static av_always_inline av_const int av_clip_int16_arm(int a)
|
|
{
|
|
int x;
|
|
__asm__ ("ssat %0, #16, %1" : "=r"(x) : "r"(a));
|
|
return x;
|
|
}
|
|
|
|
#define av_clip_uintp2 av_clip_uintp2_arm
|
|
static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
|
|
{
|
|
unsigned x;
|
|
__asm__ ("usat %0, %2, %1" : "=r"(x) : "r"(a), "i"(p));
|
|
return x;
|
|
}
|
|
|
|
#define av_sat_add32 av_sat_add32_arm
|
|
static av_always_inline int av_sat_add32_arm(int a, int b)
|
|
{
|
|
int r;
|
|
__asm__ ("qadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
|
|
return r;
|
|
}
|
|
|
|
#define av_sat_dadd32 av_sat_dadd32_arm
|
|
static av_always_inline int av_sat_dadd32_arm(int a, int b)
|
|
{
|
|
int r;
|
|
__asm__ ("qdadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
|
|
return r;
|
|
}
|
|
|
|
#else /* HAVE_ARMV6 */
|
|
|
|
#define FASTDIV FASTDIV
|
|
static av_always_inline av_const int FASTDIV(int a, int b)
|
|
{
|
|
int r, t;
|
|
__asm__ ("umull %1, %0, %2, %3"
|
|
: "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b]));
|
|
return r;
|
|
}
|
|
|
|
#endif /* HAVE_ARMV6 */
|
|
|
|
#if HAVE_ASM_MOD_Q
|
|
|
|
#define av_clipl_int32 av_clipl_int32_arm
|
|
static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
|
|
{
|
|
int x, y;
|
|
__asm__ ("adds %1, %R2, %Q2, lsr #31 \n\t"
|
|
"itet ne \n\t"
|
|
"mvnne %1, #1<<31 \n\t"
|
|
"moveq %0, %Q2 \n\t"
|
|
"eorne %0, %1, %R2, asr #31 \n\t"
|
|
: "=r"(x), "=&r"(y) : "r"(a) : "cc");
|
|
return x;
|
|
}
|
|
|
|
#endif /* HAVE_ASM_MOD_Q */
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|
|
|
|
#endif /* AVUTIL_ARM_INTMATH_H */
|