packetizer: h264: check leading nal

db79d8e8 · François Cartegnie · c5eef850 · db79d8e8
Commit db79d8e8 authored Dec 17, 2018 by François Cartegnie 🤞
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modules/packetizer/h264.c modules/packetizer/h264.c +2 -1

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--- a/modules/packetizer/h264.c
+++ b/modules/packetizer/h264.c
@@ -843,7 +843,8 @@ static block_t *OutputPicture( decoder_t *p_dec )
    }

    /* Now rebuild NAL Sequence, inserting PPS/SPS if any */
-    if( p_sys->leading.p_head->i_flags & BLOCK_FLAG_PRIVATE_AUD )
+    if( p_sys->leading.p_head &&
+       (p_sys->leading.p_head->i_flags & BLOCK_FLAG_PRIVATE_AUD) )
    {
        block_t *p_au = p_sys->leading.p_head;
        p_sys->leading.p_head = p_au->p_next;