1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/rl.h b/contrib/ffmpeg/libavcodec/rl.h
new file mode 100644
index 000000000..1c2aae25a
--- /dev/null
+++ b/contrib/ffmpeg/libavcodec/rl.h
@@ -0,0 +1,42 @@
+/**
+ * @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;
+
+/**
+ *
+ * @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, 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