Signed-off-by: Michael Niedermayer <michae...@gmx.at>
---
libavcodec/put_bits.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/libavcodec/put_bits.h b/libavcodec/put_bits.h
index 8081fb9..f16d04a 100644
--- a/libavcodec/put_bits.h
+++ b/libavcodec/put_bits.h
@@ -63,6 +63,23 @@ static inline void init_put_bits(PutBitContext *s, uint8_t
*buffer,
}
/**
+ * Rebase the bit writer onto a reallocted buffer.
+ *
+ * @param buffer the buffer where to put bits
+ * @param buffer_size the size in bytes of buffer
+ */
+static inline void rebase_put_bits(PutBitContext *s, uint8_t *buffer,
+ int buffer_size)
+{
+ av_assert0(8*buffer_size > s->size_in_bits);
+
+ s->buf_end = buffer + buffer_size;
+ s->buf_ptr = buffer + (s->buf_ptr - s->buf);
+ s->buf = buffer;
+ s->size_in_bits = 8 * buffer_size;
+}
+
+/**
* @return the total number of bits written to the bitstream.
*/
static inline int put_bits_count(PutBitContext *s)
--
1.7.9.5
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