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avformat/pva: Check for EOF before retrying in read_part_of_packet()

Fixes: Infinite loop
Fixes: pva-4b1835dbc2027bf3c567005dcc78e85199240d06

Found-by: Paul Ch <paulcher@icloud.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer
Michael Niedermayer committed Jul 3, 2018
1 parent a7e032a commit 9807d3976be0e92e4ece3b4b1701be894cd7c2e1
Showing with 4 additions and 0 deletions.
  1. +4 −0 libavformat/pva.c
@@ -134,6 +134,10 @@ static int read_part_of_packet(AVFormatContext *s, int64_t *pts,
pes_flags = avio_rb16(pb);
pes_header_data_length = avio_r8(pb);

if (avio_feof(pb)) {
return AVERROR_EOF;
}

if (pes_signal != 1 || pes_header_data_length == 0) {
pva_log(s, AV_LOG_WARNING, "expected non empty signaled PES packet, "
"trying to recover\n");

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