audio_convert_init.c 2.0 KB

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  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #include <stdint.h>
  19. #include "config.h"
  20. #include "libavutil/attributes.h"
  21. #include "libavutil/cpu.h"
  22. #include "libavutil/aarch64/cpu.h"
  23. #include "libavutil/samplefmt.h"
  24. #include "libavresample/audio_convert.h"
  25. void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
  26. void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src,
  27. int len, int channels);
  28. void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src,
  29. int len, int channels);
  30. av_cold void ff_audio_convert_init_aarch64(AudioConvert *ac)
  31. {
  32. int cpu_flags = av_get_cpu_flags();
  33. if (have_neon(cpu_flags)) {
  34. ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT,
  35. 0, 16, 8, "NEON",
  36. ff_conv_flt_to_s16_neon);
  37. ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
  38. 2, 16, 8, "NEON",
  39. ff_conv_fltp_to_s16_2ch_neon);
  40. ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
  41. 0, 16, 8, "NEON",
  42. ff_conv_fltp_to_s16_neon);
  43. }
  44. }