Merge commit 'a5d42043093a39636a1f4021a37dd9c612479f6f'

* commit 'a5d42043093a39636a1f4021a37dd9c612479f6f':
  avformat: Always return ref-counted AVPacket

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

ffmpeg.c

@@ -3507,7 +3507,6 @@ static void *input_thread(void *arg)
             av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
             break;
         }
-        av_dup_packet(&pkt);
         ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
         if (flags && ret == AVERROR(EAGAIN)) {
             flags = 0;

ffplay.c

@@ -427,10 +427,6 @@ static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 {
     int ret;
 
-    /* duplicate the packet */
-    if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
-        return -1;
-
     SDL_LockMutex(q->mutex);
     ret = packet_queue_put_private(q, pkt);
     SDL_UnlockMutex(q->mutex);

libavformat/utils.c

@@ -683,6 +683,14 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
             continue;
         }
 
+        if (!pkt->buf) {
+            AVPacket tmp = { 0 };
+            ret = av_packet_ref(&tmp, pkt);
+            if (ret < 0)
+                return ret;
+            *pkt = tmp;
+        }
+
         if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT) &&
             (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
             av_log(s, AV_LOG_WARNING,