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authorMarton Balint <cus@passwd.hu>2020-09-26 20:30:27 +0200
committerMarton Balint <cus@passwd.hu>2020-10-09 21:07:18 +0200
commit2933ee8ff09f3a9e2ae313da80b0a510474f53f4 (patch)
treebd452f3096f870cf9d3bdf99ca01b50c76d5baae /libavformat
parenta3943c48472ebbef62034c4449462b5126c07007 (diff)
avformat/mpegts: make sure mpegts_resync do not run out of the initially requested probe buffer
Signed-off-by: Marton Balint <cus@passwd.hu>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/mpegts.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 50d4d5e9bc..432b1c3ea2 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -3051,10 +3051,11 @@ static int mpegts_read_header(AVFormatContext *s)
MpegTSContext *ts = s->priv_data;
AVIOContext *pb = s->pb;
int64_t pos, probesize = s->probesize;
+ int64_t seekback = FFMAX(s->probesize, (int64_t)ts->resync_size + PROBE_PACKET_MAX_BUF);
s->internal->prefer_codec_framerate = 1;
- if (ffio_ensure_seekback(pb, probesize) < 0)
+ if (ffio_ensure_seekback(pb, seekback) < 0)
av_log(s, AV_LOG_WARNING, "Failed to allocate buffers for seekback\n");
pos = avio_tell(pb);