Removed custom FFmpegLock. Removed ffmpeg headers from third_party/ffmpeg/include.

third_party/ffmpeg/include/libavutil/mathematics.h

Index: third_party/ffmpeg/include/libavutil/mathematics.h
diff --git a/third_party/ffmpeg/include/libavutil/mathematics.h b/third_party/ffmpeg/include/libavutil/mathematics.h
deleted file mode 100644
index 782efcca0f176d91ca6f70f38debdf09dc163c35..0000000000000000000000000000000000000000
--- a/third_party/ffmpeg/include/libavutil/mathematics.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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,
- * 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
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_MATHEMATICS_H
-#define AVUTIL_MATHEMATICS_H
-
-#include <stdint.h>
-#include <math.h>
-#include "common.h"
-#include "rational.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_PI
-#define M_PI           3.14159265358979323846  /* pi */
-#endif
-#ifndef M_SQRT1_2
-#define M_SQRT1_2      0.70710678118654752440  /* 1/sqrt(2) */
-#endif
-
-enum AVRounding {
-    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.
-};
-
-int64_t av_const av_gcd(int64_t a, int64_t b);
-
-/**
- * Rescales a 64-bit integer with rounding to nearest.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
-
-/**
- * Rescales a 64-bit integer with specified rounding.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
-
-/**
- * Rescales a 64-bit integer by 2 rational numbers.
- */
-int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
-
-#endif /* AVUTIL_MATHEMATICS_H */