media/libtremor/lib/mdct.h@b8a032363ba2 (annotated)
media/libtremor/lib/mdct.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /******************************************************************** |
| michael@0 | 2 | * * |
| michael@0 | 3 | * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. * |
| michael@0 | 4 | * * |
| michael@0 | 5 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| michael@0 | 6 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| michael@0 | 7 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| michael@0 | 8 | * * |
| michael@0 | 9 | * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 * |
| michael@0 | 10 | * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * |
| michael@0 | 11 | * * |
| michael@0 | 12 | ******************************************************************** |
| michael@0 | 13 | |
| michael@0 | 14 | function: modified discrete cosine transform prototypes |
| michael@0 | 15 | |
| michael@0 | 16 | ********************************************************************/ |
| michael@0 | 17 | |
| michael@0 | 18 | #ifndef _OGG_mdct_H_ |
| michael@0 | 19 | #define _OGG_mdct_H_ |
| michael@0 | 20 | |
| michael@0 | 21 | #include "ivorbiscodec.h" |
| michael@0 | 22 | #include "misc.h" |
| michael@0 | 23 | |
| michael@0 | 24 | #define DATA_TYPE ogg_int32_t |
| michael@0 | 25 | #define REG_TYPE register ogg_int32_t |
| michael@0 | 26 | |
| michael@0 | 27 | #ifdef _LOW_ACCURACY_ |
| michael@0 | 28 | #define cPI3_8 (0x0062) |
| michael@0 | 29 | #define cPI2_8 (0x00b5) |
| michael@0 | 30 | #define cPI1_8 (0x00ed) |
| michael@0 | 31 | #else |
| michael@0 | 32 | #define cPI3_8 (0x30fbc54d) |
| michael@0 | 33 | #define cPI2_8 (0x5a82799a) |
| michael@0 | 34 | #define cPI1_8 (0x7641af3d) |
| michael@0 | 35 | #endif |
| michael@0 | 36 | |
| michael@0 | 37 | extern void mdct_forward(int n, DATA_TYPE *in, DATA_TYPE *out); |
| michael@0 | 38 | extern void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out); |
| michael@0 | 39 | |
| michael@0 | 40 | #endif |
| michael@0 | 41 | |
| michael@0 | 42 | |
| michael@0 | 43 | |
| michael@0 | 44 | |
| michael@0 | 45 | |
| michael@0 | 46 | |
| michael@0 | 47 | |
| michael@0 | 48 | |
| michael@0 | 49 | |
| michael@0 | 50 | |
| michael@0 | 51 | |
| michael@0 | 52 |
