diff options
| author | Michael Giacomelli <giac2000@hotmail.com> | 2010-02-20 00:29:31 +0000 |
|---|---|---|
| committer | Michael Giacomelli <giac2000@hotmail.com> | 2010-02-20 00:29:31 +0000 |
| commit | 93caf52db5e0afe826278c148936bdfa563724f1 (patch) | |
| tree | 6dcb12c82459e8997bfbf4ef1fb4f73d1ad37f45 /apps/codecs/libfaad | |
| parent | ccd50dd2d7bc15b98d21b19d2f6cba8dc4b6217b (diff) | |
Use new MDCT library for libfaad. Speeds up AAC-LC by 2.5MHz.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24781 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libfaad')
| -rw-r--r-- | apps/codecs/libfaad/filtbank.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/apps/codecs/libfaad/filtbank.c b/apps/codecs/libfaad/filtbank.c index 90175d953c..41c8291d9a 100644 --- a/apps/codecs/libfaad/filtbank.c +++ b/apps/codecs/libfaad/filtbank.c @@ -267,7 +267,7 @@ void ifilter_bank(uint8_t window_sequence, uint8_t window_shape, { case ONLY_LONG_SEQUENCE: /* perform iMDCT */ - mdct_backward(2048, freq_in, transf_buf); + ff_imdct_calc(11, transf_buf, freq_in); /* add second half output of previous frame to windowed output of current frame */ vector_fmul_add_add(time_out, transf_buf, window_long_prev, overlap, nlong); @@ -279,7 +279,7 @@ void ifilter_bank(uint8_t window_sequence, uint8_t window_shape, case LONG_START_SEQUENCE: /* perform iMDCT */ - mdct_backward(2048, freq_in, transf_buf); + ff_imdct_calc(11, transf_buf, freq_in); /* add second half output of previous frame to windowed output of current frame */ vector_fmul_add_add(time_out, transf_buf, window_long_prev, overlap, nlong); @@ -298,14 +298,14 @@ void ifilter_bank(uint8_t window_sequence, uint8_t window_shape, /*this could be assemblerized too, but this case is extremely uncommon*/ /* perform iMDCT for each short block */ - mdct_backward(256, freq_in+0*nshort, transf_buf+2*nshort*0); - mdct_backward(256, freq_in+1*nshort, transf_buf+2*nshort*1); - mdct_backward(256, freq_in+2*nshort, transf_buf+2*nshort*2); - mdct_backward(256, freq_in+3*nshort, transf_buf+2*nshort*3); - mdct_backward(256, freq_in+4*nshort, transf_buf+2*nshort*4); - mdct_backward(256, freq_in+5*nshort, transf_buf+2*nshort*5); - mdct_backward(256, freq_in+6*nshort, transf_buf+2*nshort*6); - mdct_backward(256, freq_in+7*nshort, transf_buf+2*nshort*7); + ff_imdct_calc(8, transf_buf+2*nshort*0, freq_in+0*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*1, freq_in+1*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*2, freq_in+2*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*3, freq_in+3*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*4, freq_in+4*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*5, freq_in+5*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*6, freq_in+6*nshort); + ff_imdct_calc(8, transf_buf+2*nshort*7, freq_in+7*nshort); /* add second half output of previous frame to windowed output of current frame */ for (i = 0; i < nflat_ls; i++) @@ -336,7 +336,7 @@ void ifilter_bank(uint8_t window_sequence, uint8_t window_shape, case LONG_STOP_SEQUENCE: /* perform iMDCT */ - mdct_backward(2048, freq_in, transf_buf); + ff_imdct_calc(11, transf_buf, freq_in); /* add second half output of previous frame to windowed output of current frame */ /* construct first half window using padding with 1's and 0's */ |