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author | Klaus Schmidinger <kls (at) cadsoft (dot) de> | 2001-08-12 18:00:00 +0200 |
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committer | Klaus Schmidinger <kls (at) cadsoft (dot) de> | 2001-08-12 18:00:00 +0200 |
commit | efea0f64d08052b0189d962101e1a3634d4adfc8 (patch) | |
tree | a3feff7ccf6874da549b25ea3b671d15a65d0e3d /ac3dec/srfft_kni_c.c | |
parent | f1d1c9849c8e27cccb46cf9c0d0ccb59da3f91f9 (diff) | |
download | vdr-patch-lnbsharing-efea0f64d08052b0189d962101e1a3634d4adfc8.tar.gz vdr-patch-lnbsharing-efea0f64d08052b0189d962101e1a3634d4adfc8.tar.bz2 |
Version 0.91vdr-0.91
- Fixed displaying colored button texts that are too long.
- Suppressing replay progress display when replaying a DVD.
- Updated channels.conf.cable (thanks to Uwe Scheffler).
- Updated French OSD texts (thanks to Jean-Claude Repetto).
- Improved AC3 decoding when replaying DVDs (thanks to Matjaz Thaler).
- Fixed handling DVB card indexes when using only one card in a multi-card
system.
- Changed the 'Eject DVD' button text to a simple 'Eject' (the German text
was too long...).
- Made the font file generation more stable (thanks to Artur Skawina).
- Changed the default value for the "DiSEqC" setup parameter to "off".
- The new command line option '-E' can be used to define where the EPG data
shall be written to. This is especially useful if VDR runs in a system
that turns off the video disk when it is not used, and therefore needs
to write the EPG file to a ramdisk (or turn off writing it alltogether).
See 'vdr --help' for details.
- Making sure the disk is up and running before starting recording (this
is important for systems that turn off the video disk when it is not used).
- Added the "Jump" function in replay mode (thanks to Stefan Huelswitt).
See the description of the "Red" key in MANUAL under "Replay Control" for
details.
- Fixed displaying editing marks when toggling a mark in "pause" mode.
- If there is no free DVB device to record, the log message will now be given
only once.
- Made I/O more robust by handling EINTR (thanks to Werner Fink).
Diffstat (limited to 'ac3dec/srfft_kni_c.c')
-rw-r--r-- | ac3dec/srfft_kni_c.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/ac3dec/srfft_kni_c.c b/ac3dec/srfft_kni_c.c new file mode 100644 index 0000000..d461110 --- /dev/null +++ b/ac3dec/srfft_kni_c.c @@ -0,0 +1,93 @@ +/* + * srfft_kni.c + * + * Copyright (C) Yuqing Deng <Yuqing_Deng@brown.edu> - April 2000 + * + * 64 and 128 point split radix fft for ac3dec + * + * The algorithm is desribed in the book: + * "Computational Frameworks of the Fast Fourier Transform". + * + * The ideas and the the organization of code borrowed from djbfft written by + * D. J. Bernstein <djb@cr.py.to>. djbff can be found at + * http://cr.yp.to/djbfft.html. + * + * srfft.c is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * srfft.c is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Make; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifdef __i386__ + +#include <stdio.h> + +#include "srfft_kni.h" +#include "srfftp.h" + +void fft_64p_kni(complex_t *a) +{ + fft_8_kni(&a[0]); fft_4_kni(&a[8]); fft_4_kni(&a[12]); + fft_asmb_kni(2, &a[0], &a[8], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[16]), fft_8_kni(&a[24]); + fft_asmb_kni(4, &a[0], &a[16],&delta32[0], &delta32_3[0]); + + fft_8_kni(&a[32]); fft_4_kni(&a[40]); fft_4_kni(&a[44]); + fft_asmb_kni(2, &a[32], &a[40], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[48]); fft_4_kni(&a[56]); fft_4_kni(&a[60]); + fft_asmb_kni(2, &a[48], &a[56], &delta16[0], &delta16_3[0]); + + fft_asmb_kni(8, &a[0], &a[32],&delta64[0], &delta64_3[0]); +} + + +void fft_128p_kni(complex_t *a) +{ + fft_8_kni(&a[0]); fft_4_kni(&a[8]); fft_4_kni(&a[12]); + fft_asmb_kni(2, &a[0], &a[8], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[16]), fft_8_kni(&a[24]); + fft_asmb_kni(4, &a[0], &a[16],&delta32[0], &delta32_3[0]); + + fft_8_kni(&a[32]); fft_4_kni(&a[40]); fft_4_kni(&a[44]); + fft_asmb_kni(2, &a[32], &a[40], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[48]); fft_4_kni(&a[56]); fft_4_kni(&a[60]); + fft_asmb_kni(2, &a[48], &a[56], &delta16[0], &delta16_3[0]); + + fft_asmb_kni(8, &a[0], &a[32],&delta64[0], &delta64_3[0]); + + fft_8_kni(&a[64]); fft_4_kni(&a[72]); fft_4_kni(&a[76]); + /* fft_16(&a[64]); */ + fft_asmb_kni(2, &a[64], &a[72], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[80]); fft_8_kni(&a[88]); + + /* fft_32(&a[64]); */ + fft_asmb_kni(4, &a[64], &a[80],&delta32[0], &delta32_3[0]); + + fft_8_kni(&a[96]); fft_4_kni(&a[104]), fft_4_kni(&a[108]); + /* fft_16(&a[96]); */ + fft_asmb_kni(2, &a[96], &a[104], &delta16[0], &delta16_3[0]); + + fft_8_kni(&a[112]), fft_8_kni(&a[120]); + /* fft_32(&a[96]); */ + fft_asmb_kni(4, &a[96], &a[112], &delta32[0], &delta32_3[0]); + + /* fft_128(&a[0]); */ + fft_asmb_kni(16, &a[0], &a[64], &delta128[0], &delta128_3[0]); +} + +#endif |