avcodec/get_bits: add skip_1stop_8data_bits

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago · 44e8e82d34
parent 7f019129e1
commit 44e8e82d34
1 changed files with 14 additions and 0 deletions
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@ -585,6 +585,20 @@ static inline int get_bits_left(GetBitContext *gb)
    return gb->size_in_bits - get_bits_count(gb);
 }

+static inline int skip_1stop_8data_bits(GetBitContext *gb)
+{
+    if (get_bits_left(gb) <= 0)
+        return AVERROR_INVALIDDATA;
+
+    while (get_bits1(gb)) {
+        skip_bits(gb, 8);
+        if (get_bits_left(gb) <= 0)
+            return AVERROR_INVALIDDATA;
+    }
+
+    return 0;
+}
+
 //#define TRACE

 #ifdef TRACE