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arm/fft: disable NEON optimizations for 131072pt transforms 

This has been broken since the start, and it was only discovered
when I started testing my replacement for the FFT.
Disable it, since there's no point in fixing slower code that's about
to be removed anyway.

The vfp version is not affected.
This commit is contained in:
Lynne 2022-08-29 07:09:03 +02:00
parent f5c5c04c14
commit f99d15cca0
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GPG Key ID: A2FEA5F03F034464
2 changed files with 8 additions and 4 deletions
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6
libavcodec/aarch64/fft_init_aarch64.c
View File

@ -38,8 +38,10 @@ av_cold void ff_fft_init_aarch64(FFTContext *s)
int cpu_flags = av_get_cpu_flags();
if (have_neon(cpu_flags)) {
s->fft_permute = ff_fft_permute_neon;
s->fft_calc = ff_fft_calc_neon;
if (s->nbits < 17) {
s->fft_permute = ff_fft_permute_neon;
s->fft_calc = ff_fft_calc_neon;
}
#if CONFIG_MDCT
s->imdct_calc = ff_imdct_calc_neon;
s->imdct_half = ff_imdct_half_neon;

6
libavcodec/arm/fft_init_arm.c
View File

@ -48,8 +48,10 @@ av_cold void ff_fft_init_arm(FFTContext *s)
if (have_neon(cpu_flags)) {
#if CONFIG_FFT
s->fft_permute = ff_fft_permute_neon;
s->fft_calc = ff_fft_calc_neon;
if (s->nbits < 17) {
s->fft_permute = ff_fft_permute_neon;
s->fft_calc = ff_fft_calc_neon;
}
#endif
#if CONFIG_MDCT
s->imdct_calc = ff_imdct_calc_neon;