repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * ARM optimized Format Conversion Utils | |
| 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 <stdint.h> | |
| 22 | ||
| 23 | #include "libavutil/attributes.h" | |
| 24 | #include "libavutil/arm/cpu.h" | |
| 25 | #include "libavcodec/avcodec.h" | |
| 26 | #include "libavcodec/fmtconvert.h" | |
| 27 | ||
| 28 | void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src, | |
| 29 | float mul, int len); | |
| 30 | ||
| 31 | void ff_int32_to_float_fmul_scalar_vfp(float *dst, const int32_t *src, | |
| 32 | float mul, int len); | |
| 33 | void ff_int32_to_float_fmul_array8_vfp(FmtConvertContext *c, float *dst, | |
| 34 | const int32_t *src, const float *mul, | |
| 35 | int len); | |
| 36 | ||
| 37 | void ff_float_to_int16_neon(int16_t *dst, const float *src, long len); | |
| 38 | void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int); | |
| 39 | ||
| 40 | void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len); | |
| 41 | ||
| 42 | av_cold void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx) | |
| 43 | { | |
| 44 | int cpu_flags = av_get_cpu_flags(); | |
| 45 | ||
| 46 | if (have_vfp(cpu_flags)) { | |
| 47 | if (!have_vfpv3(cpu_flags)) { | |
| 48 | c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_vfp; | |
| 49 | c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_vfp; | |
| 50 | } | |
| 51 | ||
| 52 | if (have_armv6(cpu_flags)) { | |
| 53 | c->float_to_int16 = ff_float_to_int16_vfp; | |
| 54 | } | |
| 55 | } | |
| 56 | ||
| 57 | if (have_neon(cpu_flags)) { | |
| 58 | c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon; | |
| 59 | ||
| 60 | if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { | |
| 61 | c->float_to_int16 = ff_float_to_int16_neon; | |
| 62 | c->float_to_int16_interleave = ff_float_to_int16_interleave_neon; | |
| 63 | } | |
| 64 | } | |
| 65 | } |