add casts to silence gcc warnings

[ffmpeg] / libavcodec / lzw.h

diff --git a/libavcodec/lzw.h b/libavcodec/lzw.h
index 60f115caf7712cee236e5f1c747d5e2cf86c1516..601d01fd6748676dbba050ab958f37052b991707 100644 (file)
--- a/libavcodec/lzw.h
+++ b/libavcodec/lzw.h
@@ -1,7 +1,7 @@
 /*
  * LZW decoder
- * Copyright (c) 2003 Fabrice Bellard.
- * Copyright (c) 2006 Konstantin Shishkov.
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2006 Konstantin Shishkov
  *
  * This file is part of FFmpeg.
  *
@@ -21,14 +21,16 @@
  */
 
 /**
- * @file lzw.h
+ * @file libavcodec/lzw.h
  * @brief LZW decoding routines
  * @author Fabrice Bellard
  * Modified for use in TIFF by Konstantin Shishkov
  */
 
-#ifndef LZW_H
-#define LZW_H
+#ifndef AVCODEC_LZW_H
+#define AVCODEC_LZW_H
+
+#include "get_bits.h"
 
 enum FF_LZW_MODES{
     FF_LZW_GIF,
@@ -41,9 +43,17 @@ typedef void LZWState;
 /* first two functions de/allocate memory for LZWState */
 void ff_lzw_decode_open(LZWState **p);
 void ff_lzw_decode_close(LZWState **p);
-int ff_lzw_decode_init(LZWState *s, int csize, uint8_t *buf, int buf_size, int mode);
+int ff_lzw_decode_init(LZWState *s, int csize, const uint8_t *buf, int buf_size, int mode);
 int ff_lzw_decode(LZWState *s, uint8_t *buf, int len);
-uint8_t* ff_lzw_cur_ptr(LZWState *lzw);
+const uint8_t* ff_lzw_cur_ptr(LZWState *lzw);
 void ff_lzw_decode_tail(LZWState *lzw);
 
-#endif
+/** LZW encode state */
+struct LZWEncodeState;
+extern const int ff_lzw_encode_state_size;
+
+void ff_lzw_encode_init(struct LZWEncodeState * s, uint8_t * outbuf, int outsize, int maxbits);
+int ff_lzw_encode(struct LZWEncodeState * s, const uint8_t * inbuf, int insize);
+int ff_lzw_encode_flush(struct LZWEncodeState * s);
+
+#endif /* AVCODEC_LZW_H */