From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- media/ffvpx/libavcodec/unary.h | 56 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 media/ffvpx/libavcodec/unary.h (limited to 'media/ffvpx/libavcodec/unary.h') diff --git a/media/ffvpx/libavcodec/unary.h b/media/ffvpx/libavcodec/unary.h new file mode 100644 index 000000000..908dc9350 --- /dev/null +++ b/media/ffvpx/libavcodec/unary.h @@ -0,0 +1,56 @@ +/* + * copyright (c) 2004 Michael Niedermayer + * + * 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 AVCODEC_UNARY_H +#define AVCODEC_UNARY_H + +#include "get_bits.h" + +/** + * Get unary code of limited length + * @param gb GetBitContext + * @param[in] stop The bitstop value (unary code of 1's or 0's) + * @param[in] len Maximum length + * @return Unary length/index + */ +static inline int get_unary(GetBitContext *gb, int stop, int len) +{ + int i; + + for(i = 0; i < len && get_bits1(gb) != stop; i++); + return i; +} + +/** + * Get unary code terminated by a 0 with a maximum length of 33 + * @param gb GetBitContext + * @return Unary length/index + */ +static inline int get_unary_0_33(GetBitContext *gb) +{ + return get_unary(gb, 0, 33); +} + +static inline int get_unary_0_9(GetBitContext *gb) +{ + return get_unary(gb, 0, 9); +} + +#endif /* AVCODEC_UNARY_H */ -- cgit v1.2.3