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avcodec/mips: Optimization synced to the newest code base.

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FFT expanded to 2^17.

Signed-off-by: Jovan Zelincevic <jovan.zelincevic@imgtec.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jovan Zelincevic 2016-03-29 09:43:35 +02:00 committed by Michael Niedermayer
parent 7888ae8266
commit b73c27151e
1 changed files with 4 additions and 7 deletions
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11
libavcodec/mips/fft_mips.c
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@ -72,7 +72,7 @@ static void ff_fft_calc_mips(FFTContext *s, FFTComplex *z)
FFTComplex * tmpz_n2, * tmpz_n34, * tmpz_n4; FFTComplex * tmpz_n2, * tmpz_n34, * tmpz_n4;
FFTComplex * tmpz_n2_i, * tmpz_n34_i, * tmpz_n4_i, * tmpz_i; FFTComplex * tmpz_n2_i, * tmpz_n34_i, * tmpz_n4_i, * tmpz_i;
num_transforms = (0x2aab >> (16 - s->nbits)) | 1; num_transforms = (21845 >> (17 - s->nbits)) | 1;
for (n=0; n<num_transforms; n++) { for (n=0; n<num_transforms; n++) {
offset = ff_fft_offsets_lut[n] << 2; offset = ff_fft_offsets_lut[n] << 2;
@ -251,8 +251,8 @@ static void ff_fft_calc_mips(FFTContext *s, FFTComplex *z)
: "memory" : "memory"
); );
w_re_ptr = (float*)(ff_cos_65536 + step); w_re_ptr = (float*)(ff_cos_131072 + step);
w_im_ptr = (float*)(ff_cos_65536 + MAX_FFT_SIZE/4 - step); w_im_ptr = (float*)(ff_cos_131072 + MAX_FFT_SIZE/4 - step);
for (i=1; i<n4; i++) { for (i=1; i<n4; i++) {
w_re = w_re_ptr[0]; w_re = w_re_ptr[0];
@ -502,11 +502,8 @@ av_cold void ff_fft_init_mips(FFTContext *s)
{ {
int n=0; int n=0;
if (s->nbits > 16)
return;
ff_fft_lut_init(ff_fft_offsets_lut, 0, 1 << 17, &n); ff_fft_lut_init(ff_fft_offsets_lut, 0, 1 << 17, &n);
ff_init_ff_cos_tabs(16); ff_init_ff_cos_tabs(17);
#if HAVE_INLINE_ASM #if HAVE_INLINE_ASM
#if !HAVE_MIPS32R6 && !HAVE_MIPS64R6 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6