diff options
Diffstat (limited to 'cmake/src/lib/ffmpeg/mathematics.pas')
| -rw-r--r-- | cmake/src/lib/ffmpeg/mathematics.pas | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/cmake/src/lib/ffmpeg/mathematics.pas b/cmake/src/lib/ffmpeg/mathematics.pas index 92ee0a5e..3a1f6a2c 100644 --- a/cmake/src/lib/ffmpeg/mathematics.pas +++ b/cmake/src/lib/ffmpeg/mathematics.pas @@ -26,10 +26,8 @@ (* * Conversion of libavutil/mathematics.h - * revision 16844, Wed Jan 28 08:50:10 2009 UTC + * avutil max. version 50.15.2, revision 23059, Tue May 11 22:10:00 2010 CET * - * update, MiSchi, no code change - * Fri Jun 12 2009 21:50:00 UTC *) unit mathematics; @@ -53,8 +51,18 @@ const M_E = 2.7182818284590452354; // e M_LN2 = 0.69314718055994530942; // log_e 2 M_LN10 = 2.30258509299404568402; // log_e 10 +{$IF LIBAVUTIL_VERSION >= 50009000} // >= 50.9.0 + M_LOG2_10 = 3.32192809488736234787; // log_2 10 +{$IFEND} M_PI = 3.14159265358979323846; // pi M_SQRT1_2 = 0.70710678118654752440; // 1/sqrt(2) +{$IF LIBAVUTIL_VERSION >= 50014000} // >= 50.14.0 + M_SQRT2 = 1.41421356237309504880; // sqrt(2) +{$IFEND} +{$IF LIBAVUTIL_VERSION >= 50005001} // >= 50.5.1 + NAN = 0.0/0.0; + INFINITY = 1.0/0.0; +{$IFEND} type TAVRounding = ( @@ -66,6 +74,11 @@ type ); {$IF LIBAVUTIL_VERSION >= 49013000} // 49.13.0 +(** + * Returns the greatest common divisor of a and b. + * If both a or b are 0 or either or both are <0 then behavior is + * undefined. + *) function av_gcd(a: cint64; b: cint64): cint64; cdecl; external av__util; {av_const} {$IFEND} @@ -90,6 +103,17 @@ function av_rescale_rnd (a, b, c: cint64; enum: TAVRounding): cint64; function av_rescale_q (a: cint64; bq, cq: TAVRational): cint64; cdecl; external av__util; {av_const} +{$IF LIBAVUTIL_VERSION >= 50008000} // 50.8.0 +(** + * Compares 2 timestamps each in its own timebases. + * The result of the function is undefined if one of the timestamps + * is outside the int64_t range when represented in the others timebase. + * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position + *) +function av_compare_ts(ts_a: cint64; tb_a: TAVRational; ts_b: cint64; tb_b: TAVRational): cint; + cdecl; external av__util; +{$IFEND} + implementation end. |