lcl: return negative error codes on decode_init() errors.

[ffmpeg] / libavcodec / bitstream.c

diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c
index 97d5b491059f596dd71c5d2719ed209e5742445a..f77b9c4e3f624a088745daceab790af6271a24d2 100644 (file)
--- a/libavcodec/bitstream.c
+++ b/libavcodec/bitstream.c
@@ -32,20 +32,18 @@
 #include "get_bits.h"
 #include "put_bits.h"
 
-const uint8_t ff_log2_run[32]={
+const uint8_t ff_log2_run[41]={
  0, 0, 0, 0, 1, 1, 1, 1,
  2, 2, 2, 2, 3, 3, 3, 3,
  4, 4, 5, 5, 6, 6, 7, 7,
- 8, 9,10,11,12,13,14,15
+ 8, 9,10,11,12,13,14,15,
+16,17,18,19,20,21,22,23,
+24,
 };
 
-void align_put_bits(PutBitContext *s)
+void avpriv_align_put_bits(PutBitContext *s)
 {
-#ifdef ALT_BITSTREAM_WRITER
-    put_bits(s,(  - s->index) & 7,0);
-#else
     put_bits(s,s->bit_left & 7,0);
-#endif
 }
 
 void ff_put_string(PutBitContext *pb, const char *string, int terminate_string)
@@ -58,7 +56,7 @@ void ff_put_string(PutBitContext *pb, const char *string, int terminate_string)
         put_bits(pb, 8, 0);
 }
 
-void ff_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
+void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
 {
     int words= length>>4;
     int bits= length&15;
@@ -105,7 +103,7 @@ static int alloc_table(VLC *vlc, int size, int use_static)
     vlc->table_size += size;
     if (vlc->table_size > vlc->table_allocated) {
         if(use_static)
-            abort(); //cant do anything, init_vlc() is used with too little memory
+            abort(); // cannot do anything, init_vlc() is used with too little memory
         vlc->table_allocated += (1 << vlc->bits);
         vlc->table = av_realloc(vlc->table,
                                 sizeof(VLC_TYPE) * 2 * vlc->table_allocated);
@@ -116,10 +114,10 @@ static int alloc_table(VLC *vlc, int size, int use_static)
 }
 
 static av_always_inline uint32_t bitswap_32(uint32_t x) {
-    return av_reverse[x&0xFF]<<24
-         | av_reverse[(x>>8)&0xFF]<<16
-         | av_reverse[(x>>16)&0xFF]<<8
-         | av_reverse[x>>24];
+    return (uint32_t)av_reverse[x&0xFF]<<24
+         | (uint32_t)av_reverse[(x>>8)&0xFF]<<16
+         | (uint32_t)av_reverse[(x>>16)&0xFF]<<8
+         | (uint32_t)av_reverse[x>>24];
 }
 
 typedef struct {
@@ -255,9 +253,9 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
    (byte/word/long) to store the 'bits', 'codes', and 'symbols' tables.
 
    'use_static' should be set to 1 for tables, which should be freed
-   with av_free_static(), 0 if free_vlc() will be used.
+   with av_free_static(), 0 if ff_free_vlc() will be used.
 */
-int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
+int ff_init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
              const void *bits, int bits_wrap, int bits_size,
              const void *codes, int codes_wrap, int codes_size,
              const void *symbols, int symbols_wrap, int symbols_size,
@@ -320,8 +318,7 @@ int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
 }
 
 
-void free_vlc(VLC *vlc)
+void ff_free_vlc(VLC *vlc)
 {
     av_freep(&vlc->table);
 }
-