repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #include "config.h" | |
| 22 | #include "libavutil/cpu.h" | |
| 23 | #include "libavutil/x86/cpu.h" | |
| 24 | #include "libavresample/dither.h" | |
| 25 | ||
| 26 | void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, int len); | |
| 27 | ||
| 28 | void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len); | |
| 29 | void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len); | |
| 30 | ||
| 31 | void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len); | |
| 32 | void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len); | |
| 33 | ||
| 34 | av_cold void ff_dither_init_x86(DitherDSPContext *ddsp, | |
| 35 | enum AVResampleDitherMethod method) | |
| 36 | { | |
| 37 | int cpu_flags = av_get_cpu_flags(); | |
| 38 | ||
| 39 | if (EXTERNAL_SSE2(cpu_flags)) { | |
| 40 | ddsp->quantize = ff_quantize_sse2; | |
| 41 | ddsp->ptr_align = 16; | |
| 42 | ddsp->samples_align = 8; | |
| 43 | } | |
| 44 | ||
| 45 | if (method == AV_RESAMPLE_DITHER_RECTANGULAR) { | |
| 46 | if (EXTERNAL_SSE2(cpu_flags)) { | |
| 47 | ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_sse2; | |
| 48 | } | |
| 49 | if (EXTERNAL_AVX(cpu_flags)) { | |
| 50 | ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_avx; | |
| 51 | } | |
| 52 | } else { | |
| 53 | if (EXTERNAL_SSE2(cpu_flags)) { | |
| 54 | ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_sse2; | |
| 55 | } | |
| 56 | if (EXTERNAL_AVX(cpu_flags)) { | |
| 57 | ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_avx; | |
| 58 | } | |
| 59 | } | |
| 60 | } |