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author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-08-30 18:12:06 +0000 |
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committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-08-30 18:12:06 +0000 |
commit | 5f11f9f3e328f6818a42f0a3405404612399c64e (patch) | |
tree | 66f4cfcde3c1d4b0564ba47aceeb2d04082a7dfb /Game/Code/lib/ffmpeg/rational.pas | |
parent | d4ec88adaa7a93d1970c116ae3d621ff05683681 (diff) | |
download | usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.tar.gz usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.tar.xz usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.zip |
Removed outdated 1.1 branch contents
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/1.1@1331 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'Game/Code/lib/ffmpeg/rational.pas')
-rw-r--r-- | Game/Code/lib/ffmpeg/rational.pas | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/Game/Code/lib/ffmpeg/rational.pas b/Game/Code/lib/ffmpeg/rational.pas deleted file mode 100644 index 0d6f76b6..00000000 --- a/Game/Code/lib/ffmpeg/rational.pas +++ /dev/null @@ -1,146 +0,0 @@ -(* - * Rational numbers - * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - *) - -(* This is a part of Pascal porting of ffmpeg. - * Originally by Victor Zinetz for Delphi and Free Pascal on Windows. - * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT - * in the source codes *) - -(* - * Revision: 10765, Wed Oct 17 09:37:46 2007 UTC - *) - -unit rational; - -{$IFDEF FPC} - {$MODE DELPHI} - {$PACKENUM 4} (* use 4-byte enums *) - {$PACKRECORDS C} (* C/C++-compatible record packing *) -{$ELSE} - {$MINENUMSIZE 4} (* use 4-byte enums *) -{$ENDIF} - -interface - -uses - UConfig; - -type -(* - * Rational number num/den. - *) - PAVRational = ^TAVRational; - TAVRational = record - num: integer; ///< numerator - den: integer; ///< denominator - end; - -(** - * Compare two rationals. - * @param a first rational - * @param b second rational - * @return 0 if a==b, 1 if a>b and -1 if a<b. - *) -function av_cmp_q(a: TAVRational; b: TAVRational): integer; inline; - -(** - * Rational to double conversion. - * @param a rational to convert - * @return (double) a - *) -function av_q2d(a: TAVRational): double; inline; - -(** - * Reduce a fraction. - * This is useful for framerate calculations. - * @param dst_nom destination numerator - * @param dst_den destination denominator - * @param nom source numerator - * @param den source denominator - * @param max the maximum allowed for dst_nom & dst_den - * @return 1 if exact, 0 otherwise - *) -function av_reduce(dst_nom: PInteger; dst_den: PInteger; nom: int64; den: int64; max: int64): integer; - cdecl; external av__util; - -(** - * Multiplies two rationals. - * @param b first rational. - * @param c second rational. - * @return b*c. - *) -function av_mul_q(b: TAVRational; c: TAVRational): TAVRational; - cdecl; external av__util; - -(** - * Divides one rational by another. - * @param b first rational. - * @param c second rational. - * @return b/c. - *) -function av_div_q(b: TAVRational; c: TAVRational): TAVRational; - cdecl; external av__util; - -(** - * Adds two rationals. - * @param b first rational. - * @param c second rational. - * @return b+c. - *) -function av_add_q(b: TAVRational; c: TAVRational): TAVRational; - cdecl; external av__util; - -(** - * Subtracts one rational from another. - * @param b first rational. - * @param c second rational. - * @return b-c. - *) -function av_sub_q(b: TAVRational; c: TAVRational): TAVRational; - cdecl; external av__util; - -(** - * Converts a double precision floating point number to a rational. - * @param d double to convert - * @param max the maximum allowed numerator and denominator - * @return (AVRational) d. - *) -function av_d2q(d: double; max: integer): TAVRational; - cdecl; external av__util; - -implementation - -function av_cmp_q (a: TAVRational; b: TAVRational): integer; -var - tmp: int64; -begin - tmp := a.num * int64(b.den) - b.num * int64(a.den); - - if (tmp <> 0) then - Result := (tmp shr 63) or 1 - else - Result := 0 -end; - -function av_q2d(a: TAVRational): double; -begin - Result := a.num / a.den; -end; - -end. |