avpacket: Add a function for shrinking already allocated side data

Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 11 insertions, 0 deletions

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index f4db08335a..af2a5ca3f2 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -3079,6 +3079,17 @@ uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
                                  int size);
 
 /**
+ * Shrink the already allocated side data buffer
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size new side information size
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                               int size);
+
+/**
  * Get side information from packet.
  *
  * @param pkt packet