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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>
This commit is contained in:
Michael Niedermayer 2018-07-03 22:14:42 +02:00
parent a7e032a277
commit 9807d3976b
1 changed files with 4 additions and 0 deletions
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4
libavformat/pva.c
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@ -134,6 +134,10 @@ recover:
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");