It was never meant to do otherwise, as av_packet_get_side_data() returns the
first
entry it finds of a given type.
Based on code from libavformat's av_stream_add_side_data().
Signed-off-by: James Almer <jamr...@gmail.com>
---
libavcodec/avpacket.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index 26d561a00a..a04cdaf530 100644
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -296,7 +296,18 @@ int av_packet_add_side_data(AVPacket *pkt, enum
AVPacketSideDataType type,
uint8_t *data, size_t size)
{
AVPacketSideData *tmp;
- int elems = pkt->side_data_elems;
+ int i, elems = pkt->side_data_elems;
+
+ for (i = 0; i < elems; i++) {
+ AVPacketSideData *sd = &pkt->side_data[i];
+
+ if (sd->type == type) {
+ av_free(sd->data);
+ sd->data = data;
+ sd->size = size;
+ return 0;
+ }
+ }
if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
return AVERROR(ERANGE);
--
2.12.1
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