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authorAlexander Sulfrian <alexander@sulfrian.net>2011-11-07 15:26:44 +0100
committerAlexander Sulfrian <alexander@sulfrian.net>2013-01-05 17:17:49 +0100
commit3260749d369d3466c345d40a8b2189c32c8c1b60 (patch)
treebdf235d333e6b4d0b0edb11bde421617a180ff92 /src/lib/ffmpeg/mathematics.pas
parentde5a3593ae7bc6fb5aab9d76d01d3faa47b91bba (diff)
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removed pascal code
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-rw-r--r--src/lib/ffmpeg/mathematics.pas104
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diff --git a/src/lib/ffmpeg/mathematics.pas b/src/lib/ffmpeg/mathematics.pas
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-(*
- * copyright (c) 2005 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.
- * - Changes and updates by the UltraStar Deluxe Team
- *)
-
-(*
- * Conversion of libavutil/mathematics.h
- * revision 16844, Wed Jan 28 08:50:10 2009 UTC
- *
- * update, MiSchi, no code change
- * Fri Jun 12 2009 21:50:00 UTC
- *)
-{
- * update to
- * avutil max. version 50.05.1, Sun, Dec 6 24:00:00 2009 UTC
- * MiSchi
-}
-
-unit mathematics;
-
-{$IFDEF FPC}
- {$MODE DELPHI }
- {$PACKENUM 4} (* use 4-byte enums *)
- {$PACKRECORDS C} (* C/C++-compatible record packing *)
-{$ELSE}
- {$MINENUMSIZE 4} (* use 4-byte enums *)
-{$ENDIF}
-
-interface
-
-uses
- ctypes,
- rational,
- UConfig;
-
-const
- M_E = 2.7182818284590452354; // e
- M_LN2 = 0.69314718055994530942; // log_e 2
- M_LN10 = 2.30258509299404568402; // log_e 10
- M_PI = 3.14159265358979323846; // pi
- M_SQRT1_2 = 0.70710678118654752440; // 1/sqrt(2)
-{$IF LIBAVUTIL_VERSION >= 50005001} // >= 50.5.1
- NAN = 0.0/0.0;
- INFINITY = 1.0/0.0;
-{$IFEND}
-
-type
- TAVRounding = (
- AV_ROUND_ZERO = 0, ///< Round toward zero.
- AV_ROUND_INF = 1, ///< Round away from zero.
- AV_ROUND_DOWN = 2, ///< Round toward -infinity.
- AV_ROUND_UP = 3, ///< Round toward +infinity.
- AV_ROUND_NEAR_INF = 5 ///< Round to nearest and halfway cases away from zero.
- );
-
-{$IF LIBAVUTIL_VERSION >= 49013000} // 49.13.0
-function av_gcd(a: cint64; b: cint64): cint64;
- cdecl; external av__util; {av_const}
-{$IFEND}
-
-(**
- * Rescales a 64-bit integer with rounding to nearest.
- * A simple a*b/c isn't possible as it can overflow.
- *)
-function av_rescale (a, b, c: cint64): cint64;
- cdecl; external av__util; {av_const}
-
-(**
- * Rescales a 64-bit integer with specified rounding.
- * A simple a*b/c isn't possible as it can overflow.
- *)
-function av_rescale_rnd (a, b, c: cint64; enum: TAVRounding): cint64;
- cdecl; external av__util; {av_const}
-
-(**
- * Rescales a 64-bit integer by 2 rational numbers.
- *)
-function av_rescale_q (a: cint64; bq, cq: TAVRational): cint64;
- cdecl; external av__util; {av_const}
-
-implementation
-
-end.