From efddbce9d0118ba748fadfdd801b10f141882222 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 14 Mar 2007 12:29:32 +0000 Subject: move RLTable stuff to its own header Originally committed as revision 8401 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/rl.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 libavcodec/rl.h (limited to 'libavcodec/rl.h') diff --git a/libavcodec/rl.h b/libavcodec/rl.h new file mode 100644 index 0000000000..adcde604ad --- /dev/null +++ b/libavcodec/rl.h @@ -0,0 +1,37 @@ +/** + * @file rl.h + * rl header. + */ + +#ifndef AVCODEC_RL_H +#define AVCODEC_RL_H + +/** RLTable. */ +typedef struct RLTable { + int n; ///< number of entries of table_vlc minus 1 + int last; ///< number of values for last = 0 + const uint16_t (*table_vlc)[2]; + const int8_t *table_run; + const int8_t *table_level; + uint8_t *index_run[2]; ///< encoding only + int8_t *max_level[2]; ///< encoding & decoding + int8_t *max_run[2]; ///< encoding & decoding + VLC vlc; ///< decoding only deprected FIXME remove + RL_VLC_ELEM *rl_vlc[32]; ///< decoding only +} RLTable; + +void init_rl(RLTable *rl, int use_static); +void init_vlc_rl(RLTable *rl, int use_static); + +static inline int get_rl_index(const RLTable *rl, int last, int run, int level) +{ + int index; + index = rl->index_run[last][run]; + if (index >= rl->n) + return rl->n; + if (level > rl->max_level[last][run]) + return rl->n; + return index + level - 1; +} + +#endif -- cgit v1.2.3