Hi
On some DVB stream ffprobe segfaulted, it was because of SCTE-35 data
packet reception
before the end of MpegTSContext initialization.
On this patch I check for `ts->pkt` availability before trying to
generate a new SCTE data
packet.
Anthony Delannoy
From 6dd92519ce5f7c85ca35c7227d35ff49fa6de3ef Mon Sep 17 00:00:00 2001
From: Anthony Delannoy <anthony.2lan...@gmail.com>
Date: Tue, 3 Sep 2019 17:54:24 +0200
Subject: [PATCH] avformat/mpegts: Check if ready on SCTE reception
On some DVB stream SCTE-35 data packet are available before the end of
MpegTSContext initialization. We have to check if it is the case to
avoid a SEGFAULT.
---
libavformat/mpegts.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 58902527c5..0415ceea02 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1725,6 +1725,13 @@ static void scte_data_cb(MpegTSFilter *filter, const uint8_t *section,
if (idx < 0)
return;
+ /**
+ * In case we receive an SCTE-35 packet before mpegts context is fully
+ * initialized.
+ */
+ if (!ts->pkt)
+ return;
+
new_data_packet(section, section_len, ts->pkt);
ts->pkt->stream_index = idx;
prg = av_find_program_from_stream(ts->stream, NULL, idx);
--
2.23.0
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