Package: src:ffmpeg Version: 7:9.0.2-1 Severity: important Tags: ftbfs forky sid
Dear maintainer: When I try to build this package on AWS machines of type m7a.medium, which incidentally have a single CPU, test "seek-hls" always fails. I have no idea why this happen, but it happens 100% of the time here, and it's concerning, because it means the output of a given test does not necessarily follow from its input. I would say that the test is wrongly designed. I'm including the relevant part below. The full build log is available here: https://people.debian.org/~sanvila/build-logs/202609/ If this happens because the encoder works differently depending on the number of available threads, you probably can reproduce the build failure by booting with GRUB_CMDLINE_LINUX="nr_cpus=1". If this is not enough, I can offer a VM to reproduce, as always. Thanks. -------------------------------------------------------------------------------- [...] /<<PKGBUILDDIR>>/debian/standard/ffmpeg -nostdin \ -f lavfi -i "testsrc2=size=128x72:rate=10:d=6" \ -f lavfi -i "aevalsrc=cos(2*PI*t)*sin(2*PI*(440+4*t)*t):d=6" \ -map 0:v -map 1:a -c:v mpeg2video -bf 2 -g 15 -dct int -idct int -flags +bitexact -c:a mp2fixed \ -f hls -hls_time 2 -hls_list_size 0 \ -var_stream_map "v:0,agroup:a a:0,agroup:a,default:yes" -master_pl_name hls-seek.m3u8 \ -hls_segment_filename /<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek-s%v-%d.ts \ /<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek-v%v.m3u8 2>/dev/null TEST seek-hls /<<PKGBUILDDIR>>/tests/fate-run.sh fate-seek-hls "" "" "/<<PKGBUILDDIR>>/debian/standard" 'run libavformat/tests/seek /<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek.m3u8 -duration 6' '' '/<<PKGBUILDDIR>>/tests/ref/seek/hls' '' '1' '' '' '' '' '' '' '' '' '' '' /<<PKGBUILDDIR>>/debian/standard/libavformat/tests/seek /<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek.m3u8 -duration 6 --- /<<PKGBUILDDIR>>/tests/ref/seek/hls 2026-08-03 22:14:48.000000000 +0000 +++ tests/data/fate/seek-hls 2026-09-19 22:29:54.772290931 +0000 @@ -6,7 +6,7 @@ ret: 0 st: 0 flags:0 ts: 0.788333 ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.500000 pos: 564 size: 3913 ret: 0 st: 0 flags:1 ts: 1.682500 -ret: 0 st: 1 flags:0 dts: 1.600000 pts: 1.600000 pos: 8836 size: 2330 +ret: 0 st: 1 flags:0 dts: 1.600000 pts: 1.600000 pos: 8836 size: 2289 ret: 0 st: 1 flags:0 ts: 2.576667 ret: 0 st: 0 flags:1 dts: 2.586233 pts: 2.586233 pos: 55836 size: 1254 ret: 0 st: 1 flags:1 ts: 3.470833 @@ -40,7 +40,7 @@ ret: 0 st:-1 flags:1 ts: 3.989173 ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.500000 pos: 564 size: 3913 ret: 0 st: 0 flags:0 ts: 4.883344 -ret: 0 st: 1 flags:0 dts: 4.800000 pts: 5.100000 pos: 20492 size: 3860 +ret: 0 st: 1 flags:0 dts: 4.800000 pts: 5.100000 pos: 20492 size: 3904 ret: 0 st: 0 flags:1 ts:-0.222489 ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.500000 pos: 564 size: 3913 ret: 0 st: 1 flags:0 ts: 0.671678 Test seek-hls failed. Look at tests/data/fate/seek-hls.err for details. [hls @ 0x55be417c2fc0] Opening '/<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek-v1.m3u8' for reading [hls @ 0x55be417c2fc0] Opening '/<<PKGBUILDDIR>>/debian/standard/tests/data/hls-seek-v0.m3u8' for reading [...] --------------------------------------------------------------------------------
