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b8a43bc1b5
* qatar/master: (27 commits) ac3enc: fix LOCAL_ALIGNED usage in count_mantissa_bits() ac3dsp: do not use the ff_* prefix when referencing ff_ac3_bap_bits. ac3dsp: fix loop condition in ac3_update_bap_counts_c() ARM: unbreak build ac3enc: modify mantissa bit counting to keep bap counts for all values of bap instead of just 0 to 4. ac3enc: split mantissa bit counting into a separate function. ac3enc: store per-block/channel bap pointers by reference block in a 2D array rather than in the AC3Block struct. get_bits: add av_unused tag to cache variable sws: replace all long with int. ARM: aacdec: fix constraints on inline asm ARM: remove unnecessary volatile from inline asm ARM: add "cc" clobbers to inline asm where needed ARM: improve FASTDIV asm ac3enc: use LOCAL_ALIGNED macro APIchanges: fill in git hash for av_get_pix_fmt_name (0420bd7). lavu: add av_get_pix_fmt_name() convenience function cmdutils: remove OPT_FUNC2 swscale: fix crash in bilinear scaling. vpxenc: add VP8E_SET_STATIC_THRESHOLD mapping webm: support stereo videos in matroska/webm muxer ... Conflicts: Changelog cmdutils.c cmdutils.h doc/APIchanges doc/muxers.texi ffmpeg.c ffplay.c libavcodec/ac3enc.c libavcodec/ac3enc_float.c libavcodec/avcodec.h libavcodec/get_bits.h libavcodec/libvpxenc.c libavcodec/version.h libavdevice/libdc1394.c libavformat/matroskaenc.c libavutil/avutil.h libswscale/rgb2rgb.c libswscale/swscale.c libswscale/swscale_template.c libswscale/x86/swscale_template.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
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* simple math operations
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* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_ARM_MATHOPS_H
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#define AVCODEC_ARM_MATHOPS_H
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#include <stdint.h>
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#include "config.h"
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#include "libavutil/common.h"
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#if HAVE_INLINE_ASM
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# define MULL MULL
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static inline av_const int MULL(int a, int b, unsigned shift)
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{
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int lo, hi;
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__asm__("smull %0, %1, %2, %3 \n\t"
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"mov %0, %0, lsr %4 \n\t"
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"add %1, %0, %1, lsl %5 \n\t"
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: "=&r"(lo), "=&r"(hi)
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: "r"(b), "r"(a), "ir"(shift), "ir"(32-shift));
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return hi;
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}
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#define MULH MULH
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#if HAVE_ARMV6
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static inline av_const int MULH(int a, int b)
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{
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int r;
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__asm__ ("smmul %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
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return r;
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}
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#else
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static inline av_const int MULH(int a, int b)
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{
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int lo, hi;
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__asm__ ("smull %0, %1, %2, %3" : "=&r"(lo), "=&r"(hi) : "r"(b), "r"(a));
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return hi;
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}
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#endif
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static inline av_const int64_t MUL64(int a, int b)
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{
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union { uint64_t x; unsigned hl[2]; } x;
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__asm__ ("smull %0, %1, %2, %3"
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: "=r"(x.hl[0]), "=r"(x.hl[1]) : "r"(a), "r"(b));
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return x.x;
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}
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#define MUL64 MUL64
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static inline av_const int64_t MAC64(int64_t d, int a, int b)
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{
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union { uint64_t x; unsigned hl[2]; } x = { d };
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__asm__ ("smlal %0, %1, %2, %3"
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: "+r"(x.hl[0]), "+r"(x.hl[1]) : "r"(a), "r"(b));
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return x.x;
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}
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#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
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#define MLS64(d, a, b) MAC64(d, -(a), b)
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#if HAVE_ARMV5TE
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/* signed 16x16 -> 32 multiply add accumulate */
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# define MAC16(rt, ra, rb) \
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__asm__ ("smlabb %0, %1, %2, %0" : "+r"(rt) : "r"(ra), "r"(rb));
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/* signed 16x16 -> 32 multiply */
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# define MUL16 MUL16
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static inline av_const int MUL16(int ra, int rb)
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{
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int rt;
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__asm__ ("smulbb %0, %1, %2" : "=r"(rt) : "r"(ra), "r"(rb));
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return rt;
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}
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#endif
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#define mid_pred mid_pred
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static inline av_const int mid_pred(int a, int b, int c)
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{
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int m;
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__asm__ (
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"mov %0, %2 \n\t"
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"cmp %1, %2 \n\t"
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"movgt %0, %1 \n\t"
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"movgt %1, %2 \n\t"
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"cmp %1, %3 \n\t"
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"movle %1, %3 \n\t"
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"cmp %0, %1 \n\t"
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"movgt %0, %1 \n\t"
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: "=&r"(m), "+r"(a)
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: "r"(b), "r"(c)
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: "cc");
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return m;
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}
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#endif /* HAVE_INLINE_ASM */
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#endif /* AVCODEC_ARM_MATHOPS_H */
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