#1148502 libmedia-convert-perl: autopkgtest regression with ffmpeg 9.0

#1148502#5
Date:
2026-09-20 05:56:10 UTC
From:
To:
Source: libmedia-convert-perl
Version: 1.5.2-1
Severity: serious
X-Debbugs-Cc: sramacher@debian.org

Dear maintainer,

libmedia-convert-perl fails its autopkgtests with ffmpeg 9.0:

549s Running: 'ffmpeg' '-loglevel' 'warning' '-y' '-i' 't/testvids/bbb.mp4' '-threads' '1' '-c:v' 'libvpx' '-speed' '4' '-pass' '1' '-passlogfile' 't/testvids/out.webm-multipass' '-c:a' 'libvorbis' '-t' '10' 't/testvids/out.webm'
549s [libvpx @ 0x13c3050] Neither bitrate nor constrained quality specified, using default CRF of 32 and bitrate of 256kbit/sec
549s progress: 3
549s progress: 5
549s progress: 9
549s progress: 10
549s progress: 12
549s progress: 13
549s progress: 14
549s progress: 15
549s progress: 16
549s progress: 17
549s progress: 18
549s progress: 19
549s progress: 20
549s progress: 22
549s progress: 23
549s progress: 25
549s progress: 27
549s progress: 29
549s progress: 30
549s progress: 31
549s progress: 33
549s progress: 34
549s progress: 36
549s progress: 38
549s progress: 40
549s progress: 42
549s progress: 43
549s progress: 45
549s progress: 46
549s progress: 47
549s progress: 48
549s progress: 49
549s progress: 50
549s Running: 'ffmpeg' '-loglevel' 'warning' '-y' '-i' 't/testvids/bbb.mp4' '-threads' '1' '-c:v' 'libvpx' '-speed' '4' '-pass' '2' '-passlogfile' 't/testvids/out.webm-multipass' '-c:a' 'libvorbis' '-t' '10' 't/testvids/out.webm'
549s [libvpx @ 0x1510050] Neither bitrate nor constrained quality specified, using default CRF of 32 and bitrate of 256kbit/sec
549s progress: 58
549s progress: 60
549s progress: 62
549s progress: 64
549s progress: 65
549s progress: 66
549s progress: 67
549s progress: 68
549s progress: 69
549s progress: 70
549s progress: 71
549s progress: 73
549s progress: 74
549s progress: 75
549s progress: 79
549s progress: 81
549s progress: 83
549s progress: 84
549s progress: 85
549s progress: 87
549s progress: 89
549s progress: 91
549s progress: 93
549s progress: 95
549s progress: 96
549s progress: 97
549s progress: 99
549s progress: 92
549s progress: 93
549s progress: 94
549s progress: 100
549s not ok 6 - progress information is strictly incresing when doing multipass
549s
549s #   Failed test 'progress information is strictly incresing when doing multipass'
549s #   at t/reporting.t line 42.
549s ok 7 - progress stops at 100% when doing multipass
549s # Looks like you failed 1 test of 7.
549s Dubious, test returned 1 (wstat 256, 0x100)
549s Failed 1/7 subtests

It looks like the test is unable to cope with the log output from
libvpx.

See
https://ci.debian.net/packages/libm/libmedia-convert-perl/testing/armhf/75829187/
for details.

Cheers