[FFmpeg-cvslog] escape130: The minimum read in and after decode_skip_count() is 4 bits.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Dec  8 13:43:01 2011 +0100| [40d62960951010f7ff004d2c2bb1a70e5ea24d1e] | committer: Michael Niedermayer

escape130: The minimum read in and after decode_skip_count() is 4 bits.
Thus we can check for 4 being available.
If the next block is skiped we need 4 bits to encode the skip. If the
next block is not skiped then we need 1 bit for the skip code and
at least 3 bits for the block.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=40d62960951010f7ff004d2c2bb1a70e5ea24d1e
---

 libavcodec/escape130.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/escape130.c b/libavcodec/escape130.c
index e7ba7bd..e3722c5 100644
--- a/libavcodec/escape130.c
+++ b/libavcodec/escape130.c
@@ -69,7 +69,7 @@ static unsigned decode_skip_count(GetBitContext* gb) {
     unsigned value;
     // This function reads a maximum of 27 bits,
     // which is within the padding space
-    if (!can_safely_read(gb, 1))
+    if (!can_safely_read(gb, 1+3))
         return -1;
 
     value = get_bits1(gb);