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c581cb4e4f
* qatar/master: Fix even more missing includes after the common.h removal build: Factor out rangecoder dependencies to CONFIG_RANGECODER build: Factor out error resilience dependencies to CONFIG_ERROR_RESILIENCE x86: avcodec: Consistently name all init files Add more missing includes after removing the implicit common.h Add some more missing includes after removing the implicit common.h Don't include common.h from avutil.h rtmp: Automatically compute the hash for SWFVerification Conflicts: configure doc/APIchanges doc/examples/decoding_encoding.c libavcodec/Makefile libavcodec/assdec.c libavcodec/audio_frame_queue.c libavcodec/avpacket.c libavcodec/dv_profile.c libavcodec/dwt.c libavcodec/libtheoraenc.c libavcodec/rawdec.c libavcodec/rv40dsp.c libavcodec/tiff.c libavcodec/tiffenc.c libavcodec/v210dec.h libavcodec/vc1dsp.c libavcodec/x86/Makefile libavfilter/asrc_anullsrc.c libavfilter/avfilter.c libavfilter/buffer.c libavfilter/formats.c libavfilter/vf_ass.c libavfilter/vf_drawtext.c libavfilter/vf_fade.c libavfilter/vf_select.c libavfilter/video.c libavfilter/vsrc_testsrc.c libavformat/version.h libavutil/audioconvert.c libavutil/error.h libavutil/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
155 lines
6.2 KiB
C
155 lines
6.2 KiB
C
/*
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* MMX optimized LPC DSP utils
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* Copyright (c) 2007 Loren Merritt
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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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#include "libavutil/x86/asm.h"
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#include "libavutil/cpu.h"
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#include "libavutil/internal.h"
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#include "libavcodec/lpc.h"
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#if HAVE_INLINE_ASM
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static void lpc_apply_welch_window_sse2(const int32_t *data, int len,
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double *w_data)
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{
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double c = 2.0 / (len-1.0);
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int n2 = len>>1;
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x86_reg i = -n2*sizeof(int32_t);
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x86_reg j = n2*sizeof(int32_t);
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__asm__ volatile(
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"movsd %4, %%xmm7 \n\t"
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"movapd "MANGLE(ff_pd_1)", %%xmm6 \n\t"
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"movapd "MANGLE(ff_pd_2)", %%xmm5 \n\t"
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"movlhps %%xmm7, %%xmm7 \n\t"
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"subpd %%xmm5, %%xmm7 \n\t"
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"addsd %%xmm6, %%xmm7 \n\t"
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"test $1, %5 \n\t"
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"jz 2f \n\t"
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#define WELCH(MOVPD, offset)\
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"1: \n\t"\
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"movapd %%xmm7, %%xmm1 \n\t"\
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"mulpd %%xmm1, %%xmm1 \n\t"\
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"movapd %%xmm6, %%xmm0 \n\t"\
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"subpd %%xmm1, %%xmm0 \n\t"\
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"pshufd $0x4e, %%xmm0, %%xmm1 \n\t"\
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"cvtpi2pd (%3,%0), %%xmm2 \n\t"\
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"cvtpi2pd "#offset"*4(%3,%1), %%xmm3 \n\t"\
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"mulpd %%xmm0, %%xmm2 \n\t"\
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"mulpd %%xmm1, %%xmm3 \n\t"\
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"movapd %%xmm2, (%2,%0,2) \n\t"\
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MOVPD" %%xmm3, "#offset"*8(%2,%1,2) \n\t"\
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"subpd %%xmm5, %%xmm7 \n\t"\
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"sub $8, %1 \n\t"\
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"add $8, %0 \n\t"\
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"jl 1b \n\t"\
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WELCH("movupd", -1)
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"jmp 3f \n\t"
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"2: \n\t"
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WELCH("movapd", -2)
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"3: \n\t"
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:"+&r"(i), "+&r"(j)
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:"r"(w_data+n2), "r"(data+n2), "m"(c), "r"(len)
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XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm5", "%xmm6", "%xmm7")
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);
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#undef WELCH
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}
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static void lpc_compute_autocorr_sse2(const double *data, int len, int lag,
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double *autoc)
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{
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int j;
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if((x86_reg)data & 15)
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data++;
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for(j=0; j<lag; j+=2){
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x86_reg i = -len*sizeof(double);
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if(j == lag-2) {
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__asm__ volatile(
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"movsd "MANGLE(ff_pd_1)", %%xmm0 \n\t"
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"movsd "MANGLE(ff_pd_1)", %%xmm1 \n\t"
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"movsd "MANGLE(ff_pd_1)", %%xmm2 \n\t"
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"1: \n\t"
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"movapd (%2,%0), %%xmm3 \n\t"
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"movupd -8(%3,%0), %%xmm4 \n\t"
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"movapd (%3,%0), %%xmm5 \n\t"
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"mulpd %%xmm3, %%xmm4 \n\t"
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"mulpd %%xmm3, %%xmm5 \n\t"
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"mulpd -16(%3,%0), %%xmm3 \n\t"
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"addpd %%xmm4, %%xmm1 \n\t"
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"addpd %%xmm5, %%xmm0 \n\t"
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"addpd %%xmm3, %%xmm2 \n\t"
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"add $16, %0 \n\t"
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"jl 1b \n\t"
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"movhlps %%xmm0, %%xmm3 \n\t"
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"movhlps %%xmm1, %%xmm4 \n\t"
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"movhlps %%xmm2, %%xmm5 \n\t"
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"addsd %%xmm3, %%xmm0 \n\t"
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"addsd %%xmm4, %%xmm1 \n\t"
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"addsd %%xmm5, %%xmm2 \n\t"
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"movsd %%xmm0, (%1) \n\t"
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"movsd %%xmm1, 8(%1) \n\t"
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"movsd %%xmm2, 16(%1) \n\t"
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:"+&r"(i)
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:"r"(autoc+j), "r"(data+len), "r"(data+len-j)
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:"memory"
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);
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} else {
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__asm__ volatile(
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"movsd "MANGLE(ff_pd_1)", %%xmm0 \n\t"
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"movsd "MANGLE(ff_pd_1)", %%xmm1 \n\t"
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"1: \n\t"
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"movapd (%3,%0), %%xmm3 \n\t"
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"movupd -8(%4,%0), %%xmm4 \n\t"
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"mulpd %%xmm3, %%xmm4 \n\t"
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"mulpd (%4,%0), %%xmm3 \n\t"
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"addpd %%xmm4, %%xmm1 \n\t"
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"addpd %%xmm3, %%xmm0 \n\t"
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"add $16, %0 \n\t"
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"jl 1b \n\t"
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"movhlps %%xmm0, %%xmm3 \n\t"
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"movhlps %%xmm1, %%xmm4 \n\t"
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"addsd %%xmm3, %%xmm0 \n\t"
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"addsd %%xmm4, %%xmm1 \n\t"
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"movsd %%xmm0, %1 \n\t"
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"movsd %%xmm1, %2 \n\t"
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:"+&r"(i), "=m"(autoc[j]), "=m"(autoc[j+1])
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:"r"(data+len), "r"(data+len-j)
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);
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}
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}
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}
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#endif /* HAVE_INLINE_ASM */
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av_cold void ff_lpc_init_x86(LPCContext *c)
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{
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int mm_flags = av_get_cpu_flags();
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#if HAVE_INLINE_ASM
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if (mm_flags & (AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW)) {
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c->lpc_apply_welch_window = lpc_apply_welch_window_sse2;
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c->lpc_compute_autocorr = lpc_compute_autocorr_sse2;
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}
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#endif /* HAVE_INLINE_ASM */
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}
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