+/*
+ * Copyright (c) 2000-2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
/**
* @file rl.h
* rl header.
#ifndef AVCODEC_RL_H
#define AVCODEC_RL_H
+#include <stdint.h>
+#include "bitstream.h"
+
+/* run length table */
+#define MAX_RUN 64
+#define MAX_LEVEL 64
+
/** RLTable. */
typedef struct RLTable {
int n; ///< number of entries of table_vlc minus 1
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
+ VLC vlc; ///< decoding only deprecated 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);
+/**
+ *
+ * @param static_store static uint8_t array[2][2*MAX_RUN + MAX_LEVEL + 3] which will hold
+ * the level and run tables, if this is NULL av_malloc() will be used
+ */
+void init_rl(RLTable *rl, uint8_t static_store[2][2*MAX_RUN + MAX_LEVEL + 3]);
+void init_vlc_rl(RLTable *rl);
+
+#define INIT_VLC_RL(rl, static_size)\
+{\
+ int q;\
+ static RL_VLC_ELEM rl_vlc_table[32][static_size];\
+ INIT_VLC_STATIC(&rl.vlc, 9, rl.n + 1,\
+ &rl.table_vlc[0][1], 4, 2,\
+ &rl.table_vlc[0][0], 4, 2, static_size);\
+\
+ if(!rl.rl_vlc[0]){\
+ for(q=0; q<32; q++)\
+ rl.rl_vlc[q]= rl_vlc_table[q];\
+\
+ init_vlc_rl(&rl);\
+ }\
+}
static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
{
return index + level - 1;
}
-#endif
+#endif /* AVCODEC_RL_H */