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author | Michael Niedermayer <michaelni@gmx.at> | 2013-01-09 12:13:58 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-01-09 12:14:56 +0100 |
commit | 75afbe2ab4a14cdfdc4001869ae67ded99cf5ce7 (patch) | |
tree | a71971845a2b85bddf8bbcfe4227dd370341f000 /libavresample | |
parent | 34c1c08c665389daa190cb331e4d899da8dde57a (diff) | |
parent | 1fb8f6a44f06e48386450fe0363aefc02583d24a (diff) | |
download | ffmpeg-75afbe2ab4a14cdfdc4001869ae67ded99cf5ce7.tar.gz |
Merge commit '1fb8f6a44f06e48386450fe0363aefc02583d24a'
* commit '1fb8f6a44f06e48386450fe0363aefc02583d24a':
x86: lavr: add SSE2 quantize() for dithering
doc/APIchanges: fill in missing dates and hashes.
rtpdec_vp8: Request a keyframe if RTP packets are lost
Conflicts:
doc/APIchanges
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavresample')
-rw-r--r-- | libavresample/dither.c | 3 | ||||
-rw-r--r-- | libavresample/dither.h | 5 | ||||
-rw-r--r-- | libavresample/x86/Makefile | 2 | ||||
-rw-r--r-- | libavresample/x86/dither.asm | 53 | ||||
-rw-r--r-- | libavresample/x86/dither_init.c | 39 |
5 files changed, 102 insertions, 0 deletions
diff --git a/libavresample/dither.c b/libavresample/dither.c index dfff03e756..f24bf5c765 100644 --- a/libavresample/dither.c +++ b/libavresample/dither.c @@ -336,6 +336,9 @@ static void dither_init(DitherDSPContext *ddsp, ddsp->dither_int_to_float = dither_int_to_float_rectangular_c; else ddsp->dither_int_to_float = dither_int_to_float_triangular_c; + + if (ARCH_X86) + ff_dither_init_x86(ddsp, method); } DitherContext *ff_dither_alloc(AVAudioResampleContext *avr, diff --git a/libavresample/dither.h b/libavresample/dither.h index d6a7d3ea8d..8db37146fa 100644 --- a/libavresample/dither.h +++ b/libavresample/dither.h @@ -85,4 +85,9 @@ void ff_dither_free(DitherContext **c); */ int ff_convert_dither(DitherContext *c, AudioData *dst, AudioData *src); +/* arch-specific initialization functions */ + +void ff_dither_init_x86(DitherDSPContext *ddsp, + enum AVResampleDitherMethod method); + #endif /* AVRESAMPLE_DITHER_H */ diff --git a/libavresample/x86/Makefile b/libavresample/x86/Makefile index 65bed899ba..2e8786fb90 100644 --- a/libavresample/x86/Makefile +++ b/libavresample/x86/Makefile @@ -1,5 +1,7 @@ OBJS += x86/audio_convert_init.o \ x86/audio_mix_init.o \ + x86/dither_init.o \ YASM-OBJS += x86/audio_convert.o \ x86/audio_mix.o \ + x86/dither.o \ diff --git a/libavresample/x86/dither.asm b/libavresample/x86/dither.asm new file mode 100644 index 0000000000..bfdc4e6907 --- /dev/null +++ b/libavresample/x86/dither.asm @@ -0,0 +1,53 @@ +;****************************************************************************** +;* x86 optimized dithering format conversion +;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.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 +;****************************************************************************** + +%include "libavutil/x86/x86util.asm" + +SECTION_RODATA 32 + +pf_s16_scale: times 4 dd 32753.0 + +SECTION_TEXT + +;------------------------------------------------------------------------------ +; void ff_quantize(int16_t *dst, float *src, float *dither, int len); +;------------------------------------------------------------------------------ + +INIT_XMM sse2 +cglobal quantize, 4,4,3, dst, src, dither, len + lea lenq, [2*lend] + add dstq, lenq + lea srcq, [srcq+2*lenq] + lea ditherq, [ditherq+2*lenq] + neg lenq + mova m2, [pf_s16_scale] +.loop: + mulps m0, m2, [srcq+2*lenq] + mulps m1, m2, [srcq+2*lenq+mmsize] + addps m0, [ditherq+2*lenq] + addps m1, [ditherq+2*lenq+mmsize] + cvtps2dq m0, m0 + cvtps2dq m1, m1 + packssdw m0, m1 + mova [dstq+lenq], m0 + add lenq, mmsize + jl .loop + REP_RET diff --git a/libavresample/x86/dither_init.c b/libavresample/x86/dither_init.c new file mode 100644 index 0000000000..d5d92902fd --- /dev/null +++ b/libavresample/x86/dither_init.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.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 + */ + +#include "config.h" +#include "libavutil/cpu.h" +#include "libavutil/x86/cpu.h" +#include "libavresample/dither.h" + +extern void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, + int len); + +av_cold void ff_dither_init_x86(DitherDSPContext *ddsp, + enum AVResampleDitherMethod method) +{ + int mm_flags = av_get_cpu_flags(); + + if (EXTERNAL_SSE2(mm_flags)) { + ddsp->quantize = ff_quantize_sse2; + ddsp->ptr_align = 16; + ddsp->samples_align = 8; + } +} |