Opened 5 weeks ago

Last modified 5 weeks ago

#13627 new Bug Report - General

mytharchivehelper calls QList without error handling

Reported by: martinscharnke Owned by:
Priority: minor Milestone: needs_triage
Component: MythTV - General Version: v31-fixes
Severity: medium Keywords: mytharchivehelper QList coredump
Cc: Ticket locked: no


Tested with DVB-T recordings, it seems mytharchivehelper doesn't trap range errors before calling Qlist, and Qlist spits a core dump.

example mythburn.log extract appended:

Pre-processing recording 1: '/mnt/Storage3/MythTVRecordings/1092_20200502114700.ts' [mpegts @ 0x5649a7b0bdc0] write_section_data: PID 0x322 CRC error [mp3float @ 0x5649a7b0c780] Header missing [mpegts @ 0x5649a7b0bdc0] start time for stream 3 is not set in estimate_timings_from_pts [mpegts @ 0x5649a7b0bdc0] PES packet size mismatch [mpegts @ 0x5649a7b0bdc0] PES packet size mismatch Input #0, mpegts, from '/mnt/Storage3/MythTVRecordings/1092_20200502114700.ts':

Duration: 02:59:48.71, start: 14200.123022, bitrate: 2653 kb/s

Stream #0:0[0x200]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x2c6](eng): Audio: mp2, 48000 Hz, stereo, fltp, 192 kb/s Stream #0:2[0x240](eng): Subtitle: dvb_teletext

Codec 0x17813 is not in the full list.

Stream #0:3[0x322]: Data: unknown_codec

ASSERT failure in QList<T>::operator[]: "index out of range", file /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h, line 552 Aborted (core dumped) ERROR: Failed while running mytharchivehelper to get stream information. Result: 134, Command was mytharchivehelper -q -q --getfileinfo --infile "/mnt/Storage3/MythTVRecordings/1092_20200502114700.ts" --outfile "/home/martin/mytharctemp/work/1/streaminfo.xml" --method 0 See mythburn.log for more information.

Change History (2)

comment:1 Changed 5 weeks ago by jpilk

Failures like this, with a 'difficult' recording, could often be avoided by using the Project-X option in MythArchive?. While it would be nice to have it fixed properly, the workaround might be worth a try.

comment:2 Changed 5 weeks ago by martinscharnke

I actually *always* use Project-X for my cutlist processing, because I also want to preserve subtitles. doesn't get the chance to invoke Project-X, because mytharchivehelper fails.

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