avcodec/avpacket: add av_packet_make_refcounted()

It works as a drop in replacement for the deprecated av_dup_packet(),
to ensure a packet is reference counted.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index 0993481961..99a0c1383b 100644
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -652,6 +652,24 @@ void av_packet_move_ref(AVPacket *dst, AVPacket *src)
     src->size = 0;
 }
 
+int av_packet_make_refcounted(AVPacket *pkt)
+{
+    int ret;
+
+    if (pkt->buf)
+        return 0;
+
+    ret = packet_alloc(&pkt->buf, pkt->size);
+    if (ret < 0)
+        return ret;
+    if (pkt->size)
+        memcpy(pkt->buf->data, pkt->data, pkt->size);
+
+    pkt->data = pkt->buf->data;
+
+    return 0;
+}
+
 int av_packet_make_writable(AVPacket *pkt)
 {
     AVBufferRef *buf = NULL;