From 2ecfd451649c7a08cb633635df98e59f7c6e2140 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Sun, 24 May 2015 16:20:26 +0200 Subject: Implement Snappy decompression Signed-off-by: Vittorio Giovara --- libavcodec/snappy.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 libavcodec/snappy.h (limited to 'libavcodec/snappy.h') diff --git a/libavcodec/snappy.h b/libavcodec/snappy.h new file mode 100644 index 0000000000..96666a814d --- /dev/null +++ b/libavcodec/snappy.h @@ -0,0 +1,51 @@ +/* + * Snappy module + * Copyright (c) Luca Barbato + * + * This file is part of Libav. + * + * 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. + * + * 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Snappy decompression + * + * Snappy is a compression/decompression algorithm that does not aim for + * maximum compression, but rather for very high speeds and reasonable + * compression. + * + * http://en.wikipedia.org/wiki/Snappy_%28software%29 + */ + +#ifndef AVCODEC_SNAPPY_H +#define AVCODEC_SNAPPY_H + +#include + +#include "bytestream.h" + +/** + * Decompress an input buffer using Snappy algorithm. Caller is + * responsible of freeing the memory allocated in buf. + * + * @param gb input GetByteContext. + * @param buf output buffer pointer. + * @param size output buffer size. + * @return 0 if success, AVERROR otherwise. + */ +int ff_snappy_uncompress(GetByteContext *gb, uint8_t **buf, int64_t *size); + +#endif /* AVCODEC_SNAPPY_H */ -- cgit v1.2.3