swscale: Remove two bogus asserts

[ffmpeg] / libavutil / mathematics.h

diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h
index 882a516393b6d8696f33eec662e20ff06dcce66b..043dd0fafea85034edef9079c8662f815409ab48 100644 (file)
--- a/libavutil/mathematics.h
+++ b/libavutil/mathematics.h
@@ -1,20 +1,20 @@
 /*
  * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -25,38 +25,27 @@
 #include <math.h>
 #include "attributes.h"
 #include "rational.h"
+#include "intfloat.h"
 
-#ifndef M_E
-#define M_E            2.7182818284590452354   /* e */
-#endif
-#ifndef M_LN2
-#define M_LN2          0.69314718055994530942  /* log_e 2 */
-#endif
-#ifndef M_LN10
-#define M_LN10         2.30258509299404568402  /* log_e 10 */
-#endif
 #ifndef M_LOG2_10
 #define M_LOG2_10      3.32192809488736234787  /* log_2 10 */
 #endif
 #ifndef M_PHI
 #define M_PHI          1.61803398874989484820   /* phi / golden ratio */
 #endif
-#ifndef M_PI
-#define M_PI           3.14159265358979323846  /* pi */
-#endif
-#ifndef M_SQRT1_2
-#define M_SQRT1_2      0.70710678118654752440  /* 1/sqrt(2) */
-#endif
-#ifndef M_SQRT2
-#define M_SQRT2        1.41421356237309504880  /* sqrt(2) */
-#endif
 #ifndef NAN
-#define NAN            (0.0/0.0)
+#define NAN            av_int2float(0x7fc00000)
 #endif
 #ifndef INFINITY
-#define INFINITY       (1.0/0.0)
+#define INFINITY       av_int2float(0x7f800000)
 #endif
 
+/**
+ * @addtogroup lavu_math
+ * @{
+ */
+
+
 enum AVRounding {
     AV_ROUND_ZERO     = 0, ///< Round toward zero.
     AV_ROUND_INF      = 1, ///< Round away from zero.
@@ -89,6 +78,12 @@ int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_cons
  */
 int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
 
+/**
+ * Rescale a 64-bit integer by 2 rational numbers with specified rounding.
+ */
+int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
+                         enum AVRounding) av_const;
+
 /**
  * Compare 2 timestamps each in its own timebases.
  * The result of the function is undefined if one of the timestamps
@@ -109,4 +104,8 @@ int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
  */
 int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
 
+/**
+ * @}
+ */
+
 #endif /* AVUTIL_MATHEMATICS_H */