diff options
| author | alex <alex@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-10-03 22:23:26 +0000 |
|---|---|---|
| committer | alex <alex@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-10-03 22:23:26 +0000 |
| commit | e24087509a752d8f4dcc679b304fc1745ff768b0 (patch) | |
| tree | 60bbaca1e13f268df83d5d88c1daa49debacc541 /libfaad2/filtbank.c | |
| parent | 22c9bcf82417c33258c74104704f196f6672f696 (diff) | |
| download | mpv-e24087509a752d8f4dcc679b304fc1745ff768b0.tar.bz2 mpv-e24087509a752d8f4dcc679b304fc1745ff768b0.tar.xz | |
synced with current cvs
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10990 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libfaad2/filtbank.c')
| -rw-r--r-- | libfaad2/filtbank.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/libfaad2/filtbank.c b/libfaad2/filtbank.c index a78ba42173..377156e222 100644 --- a/libfaad2/filtbank.c +++ b/libfaad2/filtbank.c @@ -22,7 +22,7 @@ ** Commercial non-GPL licensing of this software is possible. ** For more info contact Ahead Software through Mpeg4AAClicense@nero.com. ** -** $Id: filtbank.c,v 1.25 2003/07/29 08:20:12 menno Exp $ +** $Id: filtbank.c,v 1.1 2003/08/30 22:30:21 arpi Exp $ **/ #include "common.h" @@ -191,17 +191,31 @@ void ifilter_bank(fb_info *fb, uint8_t window_sequence, uint8_t window_shape, { case ONLY_LONG_SEQUENCE: imdct(fb, freq_in, transf_buf, 2*nlong); - for (i = nlong-1; i >= 0; i--) + for (i = 0; i < nlong; i+=4) { time_out[i] = time_out[nlong+i] + MUL_R_C(transf_buf[i],window_long_prev[i]); + time_out[i+1] = time_out[nlong+i+1] + MUL_R_C(transf_buf[i+1],window_long_prev[i+1]); + time_out[i+2] = time_out[nlong+i+2] + MUL_R_C(transf_buf[i+2],window_long_prev[i+2]); + time_out[i+3] = time_out[nlong+i+3] + MUL_R_C(transf_buf[i+3],window_long_prev[i+3]); + } + for (i = 0; i < nlong; i+=4) + { time_out[nlong+i] = MUL_R_C(transf_buf[nlong+i],window_long[nlong-1-i]); + time_out[nlong+i+1] = MUL_R_C(transf_buf[nlong+i+1],window_long[nlong-2-i]); + time_out[nlong+i+2] = MUL_R_C(transf_buf[nlong+i+2],window_long[nlong-3-i]); + time_out[nlong+i+3] = MUL_R_C(transf_buf[nlong+i+3],window_long[nlong-4-i]); } break; case LONG_START_SEQUENCE: imdct(fb, freq_in, transf_buf, 2*nlong); - for (i = 0; i < nlong; i++) + for (i = 0; i < nlong; i+=4) + { time_out[i] = time_out[nlong+i] + MUL_R_C(transf_buf[i],window_long_prev[i]); + time_out[i+1] = time_out[nlong+i+1] + MUL_R_C(transf_buf[i+1],window_long_prev[i+1]); + time_out[i+2] = time_out[nlong+i+2] + MUL_R_C(transf_buf[i+2],window_long_prev[i+2]); + time_out[i+3] = time_out[nlong+i+3] + MUL_R_C(transf_buf[i+3],window_long_prev[i+3]); + } for (i = 0; i < nflat_ls; i++) time_out[nlong+i] = transf_buf[nlong+i]; for (i = 0; i < nshort; i++) |