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author | Janne Grunau <janne-libav@jannau.net> | 2014-04-16 23:47:32 +0200 |
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committer | Janne Grunau <janne-libav@jannau.net> | 2014-04-22 19:35:41 +0200 |
commit | f4d5a2cc35fcdf06ec031fabe8b0710e995fe924 (patch) | |
tree | 35cae0ab729e6acea768b3a03fe4e517add8eaf3 /libavresample/aarch64/audio_convert_init.c | |
parent | ee2bc5974fe64fd214f52574400ae01c85f4b855 (diff) | |
download | ffmpeg-streaming-f4d5a2cc35fcdf06ec031fabe8b0710e995fe924.zip ffmpeg-streaming-f4d5a2cc35fcdf06ec031fabe8b0710e995fe924.tar.gz |
aarch64: NEON float to s16 audio conversion
Diffstat (limited to 'libavresample/aarch64/audio_convert_init.c')
-rw-r--r-- | libavresample/aarch64/audio_convert_init.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libavresample/aarch64/audio_convert_init.c b/libavresample/aarch64/audio_convert_init.c new file mode 100644 index 0000000..020dd61 --- /dev/null +++ b/libavresample/aarch64/audio_convert_init.c @@ -0,0 +1,49 @@ +/* + * 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 <stdint.h> + +#include "config.h" +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavutil/aarch64/cpu.h" +#include "libavutil/samplefmt.h" +#include "libavresample/audio_convert.h" + +void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len); +void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src, + int len, int channels); +void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, + int len, int channels); + +av_cold void ff_audio_convert_init_aarch64(AudioConvert *ac) +{ + int cpu_flags = av_get_cpu_flags(); + + if (have_neon(cpu_flags)) { + ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT, + 0, 16, 8, "NEON", + ff_conv_flt_to_s16_neon); + ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP, + 2, 16, 8, "NEON", + ff_conv_fltp_to_s16_2ch_neon); + ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP, + 0, 16, 8, "NEON", + ff_conv_fltp_to_s16_neon); + } +} |