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Move doxygen documentation from lzo.c to lzo.h

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Originally committed as revision 16949 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-02-02 20:30:36 +00:00
parent 6fb625c455
commit a545f067f3
2 changed files with 20 additions and 20 deletions
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20
libavutil/lzo.c
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@ -165,30 +165,10 @@ static inline void memcpy_backptr(uint8_t *dst, int back, int cnt) {
} }
} }
/**
* \brief deliberately overlapping memcpy implementation
* \param dst destination buffer; must be padded with 12 additional bytes
* \param back how many bytes back we start (the initial size of the overlapping window)
* \param cnt number of bytes to copy, must be >= 0
*
* cnt > back is valid, this will copy the bytes we just copied,
* thus creating a repeating pattern with a period length of back.
*/
void av_memcpy_backptr(uint8_t *dst, int back, int cnt) { void av_memcpy_backptr(uint8_t *dst, int back, int cnt) {
memcpy_backptr(dst, back, cnt); memcpy_backptr(dst, back, cnt);
} }
/**
* \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 error flags, see lzo.h
*
* Make sure all buffers are appropriately padded, in must provide
* AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
*/
int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen) { int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen) {
int state= 0; int state= 0;
int x; int x;

20
libavutil/lzo.h
View File

@ -32,8 +32,28 @@
#define AV_LZO_INPUT_PADDING 8 #define AV_LZO_INPUT_PADDING 8
#define AV_LZO_OUTPUT_PADDING 12 #define AV_LZO_OUTPUT_PADDING 12
/**
* \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 error flags, see lzo.h
*
* Make sure all buffers are appropriately padded, in must provide
* AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
*/
int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen); int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
/**
* \brief deliberately overlapping memcpy implementation
* \param dst destination buffer; must be padded with 12 additional bytes
* \param back how many bytes back we start (the initial size of the overlapping window)
* \param cnt number of bytes to copy, must be >= 0
*
* cnt > back is valid, this will copy the bytes we just copied,
* thus creating a repeating pattern with a period length of back.
*/
void av_memcpy_backptr(uint8_t *dst, int back, int cnt); void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
#endif /* AVUTIL_LZO_H */ #endif /* AVUTIL_LZO_H */