alsa: add support for more formats.

[ffmpeg] / libavcodec / rl.h

diff --git a/libavcodec/rl.h b/libavcodec/rl.h
index adcde604ad52dbc2a20ef5c7acb152c98fd0e8b4..9c1ad7a64298ff338f81eb911be26eccca7a63d8 100644 (file)
--- a/libavcodec/rl.h
+++ b/libavcodec/rl.h
@@ -1,11 +1,39 @@
+/*
+ * Copyright (c) 2000-2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
 /**
- * @file rl.h
+ * @file
  * rl header.
  */
 
 #ifndef AVCODEC_RL_H
 #define AVCODEC_RL_H
 
+#include <stdint.h>
+#include "get_bits.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
@@ -16,12 +44,33 @@ typedef struct RLTable {
     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)
 {
@@ -34,4 +83,4 @@ static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
     return index + level - 1;
 }
 
-#endif
+#endif /* AVCODEC_RL_H */