mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-09-23 14:56:44 +00:00
e776ee8f29
* qatar/master: lavr: fix handling of custom mix matrices fate: force pix_fmt in lagarith-rgb32 test fate: add tests for lagarith lossless video codec. ARMv6: vp8: fix stack allocation with Apple's assembler ARM: vp56: allow inline asm to build with clang fft: 3dnow: fix register name typo in DECL_IMDCT macro x86: dct32: port to cpuflags x86: build: replace mmx2 by mmxext Revert "wmapro: prevent division by zero when sample rate is unspecified" wmapro: prevent division by zero when sample rate is unspecified lagarith: fix color plane inversion for YUY2 output. lagarith: pad RGB buffer by 1 byte. dsputil: make add_hfyu_left_prediction_sse4() support unaligned src. Conflicts: doc/APIchanges libavcodec/lagarith.c libavfilter/x86/gradfun.c libavutil/cpu.h libavutil/version.h libswscale/utils.c libswscale/version.h libswscale/x86/yuv2rgb.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
122 lines
4.1 KiB
C
122 lines
4.1 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 AVCODEC_ARM_VP56_ARITH_H
|
|
#define AVCODEC_ARM_VP56_ARITH_H
|
|
|
|
#if CONFIG_THUMB
|
|
# define A(x)
|
|
# define T(x) x
|
|
#else
|
|
# define A(x) x
|
|
# define T(x)
|
|
#endif
|
|
|
|
#if CONFIG_THUMB || defined __clang__
|
|
# define L(x)
|
|
# define U(x) x
|
|
#else
|
|
# define L(x) x
|
|
# define U(x)
|
|
#endif
|
|
|
|
#if HAVE_ARMV6 && HAVE_INLINE_ASM
|
|
|
|
#define vp56_rac_get_prob vp56_rac_get_prob_armv6
|
|
static inline int vp56_rac_get_prob_armv6(VP56RangeCoder *c, int pr)
|
|
{
|
|
unsigned shift = ff_vp56_norm_shift[c->high];
|
|
unsigned code_word = c->code_word << shift;
|
|
unsigned high = c->high << shift;
|
|
unsigned bit;
|
|
|
|
__asm__ ("adds %3, %3, %0 \n"
|
|
"itt cs \n"
|
|
"cmpcs %7, %4 \n"
|
|
L("ldrcsh %2, [%4], #2 \n")
|
|
U("ldrhcs %2, [%4], #2 \n")
|
|
"rsb %0, %6, #256 \n"
|
|
"smlabb %0, %5, %6, %0 \n"
|
|
T("itttt cs \n")
|
|
"rev16cs %2, %2 \n"
|
|
T("lslcs %2, %2, %3 \n")
|
|
T("orrcs %1, %1, %2 \n")
|
|
A("orrcs %1, %1, %2, lsl %3 \n")
|
|
"subcs %3, %3, #16 \n"
|
|
"lsr %0, %0, #8 \n"
|
|
"cmp %1, %0, lsl #16 \n"
|
|
"ittte ge \n"
|
|
"subge %1, %1, %0, lsl #16 \n"
|
|
"subge %0, %5, %0 \n"
|
|
"movge %2, #1 \n"
|
|
"movlt %2, #0 \n"
|
|
: "=&r"(c->high), "=&r"(c->code_word), "=&r"(bit),
|
|
"+&r"(c->bits), "+&r"(c->buffer)
|
|
: "r"(high), "r"(pr), "r"(c->end - 1),
|
|
"0"(shift), "1"(code_word)
|
|
: "cc");
|
|
|
|
return bit;
|
|
}
|
|
|
|
#define vp56_rac_get_prob_branchy vp56_rac_get_prob_branchy_armv6
|
|
static inline int vp56_rac_get_prob_branchy_armv6(VP56RangeCoder *c, int pr)
|
|
{
|
|
unsigned shift = ff_vp56_norm_shift[c->high];
|
|
unsigned code_word = c->code_word << shift;
|
|
unsigned high = c->high << shift;
|
|
unsigned low;
|
|
unsigned tmp;
|
|
|
|
__asm__ ("adds %3, %3, %0 \n"
|
|
"itt cs \n"
|
|
"cmpcs %7, %4 \n"
|
|
L("ldrcsh %2, [%4], #2 \n")
|
|
U("ldrhcs %2, [%4], #2 \n")
|
|
"rsb %0, %6, #256 \n"
|
|
"smlabb %0, %5, %6, %0 \n"
|
|
T("itttt cs \n")
|
|
"rev16cs %2, %2 \n"
|
|
T("lslcs %2, %2, %3 \n")
|
|
T("orrcs %1, %1, %2 \n")
|
|
A("orrcs %1, %1, %2, lsl %3 \n")
|
|
"subcs %3, %3, #16 \n"
|
|
"lsr %0, %0, #8 \n"
|
|
"lsl %2, %0, #16 \n"
|
|
: "=&r"(low), "+&r"(code_word), "=&r"(tmp),
|
|
"+&r"(c->bits), "+&r"(c->buffer)
|
|
: "r"(high), "r"(pr), "r"(c->end - 1), "0"(shift)
|
|
: "cc");
|
|
|
|
if (code_word >= tmp) {
|
|
c->high = high - low;
|
|
c->code_word = code_word - tmp;
|
|
return 1;
|
|
}
|
|
|
|
c->high = low;
|
|
c->code_word = code_word;
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* AVCODEC_ARM_VP56_ARITH_H */
|