diff options
Diffstat (limited to 'libavutil/display.c')
| -rw-r--r-- | libavutil/display.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/libavutil/display.c b/libavutil/display.c index 74aceb2847..53e8aa255f 100644 --- a/libavutil/display.c +++ b/libavutil/display.c @@ -1,20 +1,20 @@ /* * Copyright (c) 2014 Vittorio Giovara <vittorio.giovara@gmail.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -35,10 +35,8 @@ double av_display_rotation_get(const int32_t matrix[9]) { double rotation, scale[2]; - scale[0] = sqrt(CONV_FP(matrix[0]) * CONV_FP(matrix[0]) + - CONV_FP(matrix[3]) * CONV_FP(matrix[3])); - scale[1] = sqrt(CONV_FP(matrix[1]) * CONV_FP(matrix[1]) + - CONV_FP(matrix[4]) * CONV_FP(matrix[4])); + scale[0] = hypot(CONV_FP(matrix[0]), CONV_FP(matrix[3])); + scale[1] = hypot(CONV_FP(matrix[1]), CONV_FP(matrix[4])); if (scale[0] == 0.0 || scale[1] == 0.0) return NAN; |