On Sun, 16 May 2021, Michael Niedermayer wrote:

Fixes: CID1464151 Dereference after null check

Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/fifo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/fifo.c b/libavformat/fifo.c
index 620fffa032..50656f78b7 100644
--- a/libavformat/fifo.c
+++ b/libavformat/fifo.c
@@ -593,7 +593,7 @@ static int fifo_write_packet(AVFormatContext *avf, AVPacket 
*pkt)
        goto fail;
    }

-    if (fifo->timeshift && pkt->dts != AV_NOPTS_VALUE)
+    if (fifo->timeshift && pkt && pkt->dts != AV_NOPTS_VALUE)
        atomic_fetch_add_explicit(&fifo->queue_duration, next_duration(avf, pkt, 
&fifo->last_sent_dts), memory_order_relaxed);

    return ret;

LGTM, thanks.

Marton
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