diff options
Diffstat (limited to 'libavcodec/vp3.c')
-rw-r--r-- | libavcodec/vp3.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index 9268d5e..e669332 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -63,6 +63,11 @@ typedef struct Vp3Fragment { #define SB_PARTIALLY_CODED 1 #define SB_FULLY_CODED 2 +// This is the maximum length of a single long bit run that can be encoded +// for superblock coding or block qps. Theora special-cases this to read a +// bit instead of flipping the current bit to allow for runs longer than 4129. +#define MAXIMUM_LONG_BIT_RUN 4129 + #define MODE_INTER_NO_MV 0 #define MODE_INTRA 1 #define MODE_INTER_PLUS_MV 2 @@ -920,7 +925,7 @@ static int unpack_block_qpis(Vp3DecodeContext *s, GetBitContext *gb) } } - if (run_length == 4129) + if (run_length == MAXIMUM_LONG_BIT_RUN) bit = get_bits1(gb); else bit ^= 1; |