diff options
Diffstat (limited to 'libavcodec/x86/fft_init.c')
| -rw-r--r-- | libavcodec/x86/fft_init.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/libavcodec/x86/fft_init.c b/libavcodec/x86/fft_init.c index ed12909..928f1dc 100644 --- a/libavcodec/x86/fft_init.c +++ b/libavcodec/x86/fft_init.c @@ -1,18 +1,18 @@ /* - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg 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, + * FFmpeg 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 + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -28,23 +28,33 @@ av_cold void ff_fft_init_x86(FFTContext *s) { int cpu_flags = av_get_cpu_flags(); + if (s->nbits > 16) + return; + #if ARCH_X86_32 if (EXTERNAL_AMD3DNOW(cpu_flags)) { + s->imdct_calc = ff_imdct_calc_3dnow; + s->imdct_half = ff_imdct_half_3dnow; s->fft_calc = ff_fft_calc_3dnow; } if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) { + s->imdct_calc = ff_imdct_calc_3dnowext; + s->imdct_half = ff_imdct_half_3dnowext; s->fft_calc = ff_fft_calc_3dnowext; } #endif /* ARCH_X86_32 */ if (EXTERNAL_SSE(cpu_flags)) { + s->imdct_calc = ff_imdct_calc_sse; + s->imdct_half = ff_imdct_half_sse; s->fft_permute = ff_fft_permute_sse; s->fft_calc = ff_fft_calc_sse; s->fft_permutation = FF_FFT_PERM_SWAP_LSBS; } if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) { + s->imdct_half = ff_imdct_half_avx; s->fft_calc = ff_fft_calc_avx; s->fft_permutation = FF_FFT_PERM_AVX; } |
