[FFmpeg-cvslog] avformat/demux: Use unsigned to check duration vs duration_text

ffmpeg | branch: release/5.0 | Michael Niedermayer | Mon Apr 11 21:52:55 2022 +0200| [14d8814edca862895fbf64187c32f2ac61afde90] | committer: Michael Niedermayer avformat/demux: Use unsigned to check duration vs duration_text Fixes: signed integer overflow: 9223371898743775808 - -13811100 c

[FFmpeg-cvslog] avformat/demux: Use unsigned to check duration vs duration_text

ffmpeg | branch: master | Michael Niedermayer | Mon Apr 11 21:52:55 2022 +0200| [6007d5688c8b0efe5bb8489cca3a0e32b2001263] | committer: Michael Niedermayer avformat/demux: Use unsigned to check duration vs duration_text Fixes: signed integer overflow: 9223371898743775808 - -13811100 cannot