Integer wrap-around in oggparsevorbis.c vorbis_packet() final packet handling creating frames with very long duration

[Jøger Hansegård]

Summary of the bug:
With attached file, unsigned integer wrap-around in oggparsevorbis.c/vorbis_packet() during the calculation of priv->final_duration/os->pduration creates packets with very long durations (4294967232us). The os->end_trimming also becomes invalid, which prevents the discard_samples() function from discarding the padding. Here discard_padding becomes greater than the number of samples in the frame, allowing the AVFrame with a long duration to pass through.

See also ​https://bugreports.qt.io/browse/QTBUG-126592

How to reproduce:

% ffprobe -show_frames -show_packets corrupt_end.ogg
ffprobe version 7.0.2-full_build-www.gyan.dev Copyright (c) 2007-2024 the FFmpeg developers
  built with gcc 13.2.0 (Rev5, Built by MSYS2 project)

[Jøger Hansegård]

Ogg/Vorbis file used to reproduce ticket #11471