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swresample/swresample: do not use s32p internally by default when resampling 

use fltp when doing s32 -> s32 resampling
because s32p has no simd optimization

benchmark:
old 17.913s
new  7.584s (use fma3)

Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
This commit is contained in:
Muhammad Faiz 2017-03-16 12:35:11 +07:00
parent 9e6b269fea
commit c52638cca2
1 changed files with 2 additions and 0 deletions
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2
libswresample/swresample.c
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@ -223,6 +223,8 @@ av_cold int swr_init(struct SwrContext *s){
}else if( av_get_planar_sample_fmt(s-> in_sample_fmt) == AV_SAMPLE_FMT_S32P
&& av_get_planar_sample_fmt(s->out_sample_fmt) == AV_SAMPLE_FMT_S32P
&& !s->rematrix
&& s->out_sample_rate == s->in_sample_rate
&& !(s->flags & SWR_FLAG_RESAMPLE)
&& s->engine != SWR_ENGINE_SOXR){
s->int_sample_fmt= AV_SAMPLE_FMT_S32P;
}else if(av_get_bytes_per_sample(s->in_sample_fmt) <= 4){