From c8af852b97447491823ff9b91413e32415e2babf Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Fri, 23 Mar 2012 17:42:17 -0400 Subject: Add libavresample This is a new library for audio sample format, channel layout, and sample rate conversion. --- libavresample/x86/audio_convert_init.c | 42 ++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 libavresample/x86/audio_convert_init.c (limited to 'libavresample/x86/audio_convert_init.c') diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c new file mode 100644 index 0000000000..6883f10a21 --- /dev/null +++ b/libavresample/x86/audio_convert_init.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2012 Justin Ruggles + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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 "libavresample/audio_convert.h" + +extern void ff_conv_fltp_to_flt_6ch_mmx(float *dst, float *const *src, int len); +extern void ff_conv_fltp_to_flt_6ch_sse(float *dst, float *const *src, int len); + +av_cold void ff_audio_convert_init_x86(AudioConvert *ac) +{ +#if HAVE_YASM + int mm_flags = av_get_cpu_flags(); + + if (mm_flags & AV_CPU_FLAG_MMX && HAVE_MMX) { + ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP, + 6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx); + } + if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) { + ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP, + 6, 16, 4, "SSE", ff_conv_fltp_to_flt_6ch_sse); + } +#endif +} -- cgit v1.2.3