diff options
Diffstat (limited to 'libavcodec/bitstream.c')
| -rw-r--r-- | libavcodec/bitstream.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c index 9002830cec..7549e7d8bb 100644 --- a/libavcodec/bitstream.c +++ b/libavcodec/bitstream.c @@ -158,11 +158,12 @@ static int build_table(VLC *vlc, int table_nb_bits, #endif /* if code matches the prefix, it is in the table */ n -= n_prefix; + if (n > 0) { if(flags & INIT_VLC_LE) code_prefix2= code & (n_prefix>=32 ? 0xffffffff : (1 << n_prefix)-1); else code_prefix2= code >> n; - if (n > 0 && code_prefix2 == code_prefix) { + if (code_prefix2 == code_prefix) { if (n <= table_nb_bits) { /* no need to add another table */ j = (code << (table_nb_bits - n)) & (table_size - 1); @@ -196,6 +197,7 @@ static int build_table(VLC *vlc, int table_nb_bits, table[j][1] = -n1; //bits } } + } } /* second pass : fill auxillary tables recursively */ |