This will allow the compiler to optimize the "is the cache full?"
branches away from some put_bits().
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/put_bits.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/libavcodec/put_bits.h b/libavcodec/put_bits.h
index 4561dc131a..79bad1c214 100644
--- a/libavcodec/put_bits.h
+++ b/libavcodec/put_bits.h
@@ -74,6 +74,16 @@ static inline void init_put_bits(PutBitContext *s, uint8_t
*buffer,
s->bit_buf = 0;
}
+/**
+ * Inform the compiler that a PutBitContext is flushed (i.e. if it has just
+ * been initialized or flushed). Undefined behaviour occurs if this is used
+ * with a PutBitContext for which this is not true.
+ */
+static inline void put_bits_assume_flushed(const PutBitContext *s)
+{
+ av_assume(s->bit_left == BUF_BITS);
+}
+
/**
* @return the total number of bits written to the bitstream.
*/
--
2.40.1
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