libavutil/lzo.h
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 /*
  * LZO 1x decompression
  * copyright (c) 2006 Reimar Doeffinger
  *
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  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
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  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
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  * version 2.1 of the License, or (at your option) any later version.
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  *
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  * FFmpeg is distributed in the hope that it will be useful,
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  * 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
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  * License along with FFmpeg; if not, write to the Free Software
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
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 #ifndef AVUTIL_LZO_H
 #define AVUTIL_LZO_H
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 /**
  * @defgroup lavu_lzo LZO
  * @ingroup lavu_crypto
  *
  * @{
  */
 
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 #include <stdint.h>
 
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 /** @name Error flags returned by av_lzo1x_decode
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  * @{ */
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 /// end of the input buffer reached before decoding finished
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 #define AV_LZO_INPUT_DEPLETED  1
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 /// decoded data did not fit into output buffer
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 #define AV_LZO_OUTPUT_FULL     2
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 /// a reference to previously decoded data was wrong
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 #define AV_LZO_INVALID_BACKPTR 4
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 /// a non-specific error in the compressed bitstream
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 #define AV_LZO_ERROR           8
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 /** @} */
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 #define AV_LZO_INPUT_PADDING   8
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 #define AV_LZO_OUTPUT_PADDING 12
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 /**
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  * @brief Decodes LZO 1x compressed data.
  * @param out output buffer
  * @param outlen size of output buffer, number of bytes left are returned here
  * @param in input buffer
  * @param inlen size of input buffer, number of bytes left are returned here
  * @return 0 on success, otherwise a combination of the error flags above
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  *
  * Make sure all buffers are appropriately padded, in must provide
  * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
  */
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 int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
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 /**
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  * @}
  */
 
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 #endif /* AVUTIL_LZO_H */