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| author | Xiaohui Sun <sunxiaohui@dsp.ac.cn> | 2007-04-03 06:40:21 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2007-04-03 06:40:21 +0000 |
| commit | b25514a43f8780a13de5f09cb45c6046a60f4447 (patch) | |
| tree | d912bdb78e1361fffe86570059c8cfde3b8f6152 /libavcodec/rle.h | |
| parent | 65df54496e86cdb46948b3c15df4ba91d2927ceb (diff) | |
| download | ffmpeg-b25514a43f8780a13de5f09cb45c6046a60f4447.tar.gz | |
Changed the rle encoder a little and made it more universal.
Not only the repeated byte is calculated as (count ^ xor) + add
but also the raw encoding lenth byte is calculated as that too
patch by Xiaohui Sun sunxiaohui dsp ac cn
Originally committed as revision 8602 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/rle.h')
| -rw-r--r-- | libavcodec/rle.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/rle.h b/libavcodec/rle.h index 5da09f2731..8ec3996810 100644 --- a/libavcodec/rle.h +++ b/libavcodec/rle.h @@ -23,7 +23,8 @@ #define RLE_H /** - * RLE compress the row, with maximum size of out_size. Value before repeated bytes is (count ^ xor) + add. + * RLE compress the row, with maximum size of out_size. Value before repeated bytes is (count ^ xor_rep) + add_rep. + * Value before raw bytes is (count ^ xor_raw) + add_raw. * @param outbuf Output buffer * @param out_size Maximum output size * @param ptr Input buffer @@ -31,6 +32,7 @@ * @param w Image width * @return Size of output in bytes, or -1 if larger than out_size */ -int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *inbuf, int bpp, int w, int8_t add, uint8_t xor); +int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *inbuf, int bpp, int w, + int8_t add_rep, uint8_t xor_rep, int8_t add_raw, uint8_t xor_raw); #endif /* RLE_H */ |