Good Aft Reinhard, I found the crash file and used: ubuntu-bug —tag=1782404 /var/crash/_usr_bin_transcode.1000.crash Than a pop-up ubuntu dialog asked I send the report - pressed OK and gone.
I trust it made it’s way to you and your team. Incidentally, I found a partial workaround using: transcode -y player,ac3 … rather than ffmpeg or tcaud as the export AC3 plugin. It did not crash and did give a AC3 output file, despite a warning message that this AC3 module is not optimal. So I can now get a AC3 file this way but my final muxed mpg2 file using mplex to mux this AC3 and it’s associated m2v video file plays ok on “some” video players (ie VLC) but not properly on MAC’s Quicktime player - audio OK - video is jerking. Specifically I use transcode's —pulldown option to add soft telecine flags to my 24p film frame video to output as DVD NTSC compliant frame rate. I use mpeg2enc video encoder option in Transcode, rather than the ffmpeg as it’s video encode quality is not as good for the same bitrate. I tested the same process with MPlayer’s Mencoder (using pulldown flag - Mencoder uses only ffmpeg’s mpeg2 video encoder) and the output mpeg2 file plays perfectly on all the tested layers including Quicktime player BUT the encoded video quality is not so good using the same bitrate and settings. Searching the Internet I find no working example files that used transcode to produce NTSC-FILM mpeg2 output suitable for DVD’s - some for PAL system that the original mpeg2enc author was familiar with. The bright side is if you/your team can fix transcode's AC3 export segfault, than I can test it’s two other two options for AC3 output and see if the final result works better than the internal AC3 code. - guess a long shot but I’ll test :) Again thank you for your support - I’ll assist wherever possible, Jeff > On 25 Jul 2018, at 7:27 PM, Reinhard Tartler <siret...@gmail.com> wrote: > > Unfortunately, apport-collect didn't collect the crash file. Please > check if there is an corresponding crash file for this segfault in > /var/crash and report it using "ubuntu-bug /var/crash/<crash_file>". We > can then mark the new bug as duplicate of this one as necessary. > > Alternatively, you could use "apport-retrace" to retrace the crash file. > I haven't done so myself, and the "ubuntu-bug" route might be easier. > > Sorry for not getting back to you sooner, I had to check on IRC on > #ubuntu-bug for clarifying how to proceed with apport here. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1782402 > > Title: > any export AC3 causes segfault > > Status in transcode package in Ubuntu: > Incomplete > > Bug description: > Package: Transcode v1.17 3.1.1.7-9ubuntu2 > System: Linux Mint v19 Tara 4.15.0-24-generic #26-Ubuntu SMP Wed Jun 13 > 08:44:47 UTC 2018 > > Hi Transcode Team, > > I tried every combination, different source format files, different export > options with and without video, using ffmpeg or tcaud audio AC3 export > modules, everytime I get segfault. > Without -N 0x2000 AC3 export settings all video is processed, and other > audio export formats work. > I tried the simplest AC3 export command line as: > $transcode -y null,tcaud -i AE7_16b_d.mov -N 0x2000 -m audio.ac3 > AND > $transcode -y null,tcaud -N 0x2000 -i Windchime.wav -m audio.ac3 -q 2 > but same segfault results as below: > > My ffmpeg version 7:3.4.2-2 (which I expect is not used once I use > tcaud export plugin). > > I trust this bug report & details can help many Ubuntu users. > Any suggestions appreciated ? > Regards, Jeff > > Terminal output: > $ transcode -y null,tcaud -F 8 -i AE7_16b_d.mov \ >> -N 0x2000 -E 48000 -D 0 -b 320 -m audio.ac3 > transcode v1.1.7 (C) 2001-2003 Thomas Oestreich, 2003-2010 Transcode Team > libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed > libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed > libdvdread: Can't open file VIDEO_TS.BUP. > libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed > libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed > libdvdread: Can't open file VIDEO_TS.BUP. > [transcode] V: auto-probing | AE7_16b_d.mov (OK) > [transcode] V: import format | (null) in QuickTime (module=mov) > [transcode] A: auto-probing | AE7_16b_d.mov (OK) > [transcode] A: import format | PCM in QuickTime (module=mov) > [transcode] V: AV demux/sync | (1) sync AV at initial MPEG sequence > [transcode] V: import frame | 1920x1080 1.78:1 encoded @ 16:9 > [transcode] V: bits/pixel | 0.036 (low) > [transcode] V: decoding fps,frc | 23.976,1 > [transcode] V: video format | YUV420 (4:2:0) aka I420 > [transcode] A: import format | 0x1 PCM [48000,16,2] > [transcode] A: export format | 0x2000 AC3 [48000,16,2] 320 kbps > [transcode] V: export format | unknown (module dependant) > [transcode] V: encoding fps,frc | 23.976,1 > [transcode] A: bytes per frame | 8008 (8008.000000) > [transcode] A: adjustment | 0@1000 > [transcode] V: IA32/AMD64 accel | sse42 sse41 ssse3 sse3 sse2 sse mmx cmove > asm > [transcode] V: video buffer | 10 @ 1920x1080 [0x2] > [transcode] A: audio buffer | 10 @ 48000x2x16 > [import_mov.so] v0.1.3 (2005-12-04) (video) * | (audio) * > [export_tcaud.so] v0.9.0 (2007-07-03) (audio) MPEG/AC3/PCM > [export_null.so] v0.1.2 (2001-08-17) (video) null | (audio) null > [import_mov.so] codec=lpcm, rate=48000 Hz, bits=16, channels=2, > samples=8250242 > [import_mov.so] VIDEO: codec=avc1, fps=23.976, width=1920, height=1080, > frames=4121 > [transcode] PCM -> AC3 > Segmentation fault (core dumped) > --- > ProblemType: Bug > ApportVersion: 2.20.9-0ubuntu7.2 > Architecture: amd64 > CurrentDesktop: ubuntu:GNOME > DistroRelease: Ubuntu 18.04 > InstallationDate: Installed on 2018-07-19 (4 days ago) > InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 > (20180426) > Package: transcode 3:1.1.7-9ubuntu2 > PackageArchitecture: amd64 > ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 > Tags: bionic > Uname: Linux 4.15.0-23-generic x86_64 > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo > _MarkForUpload: True > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/transcode/+bug/1782402/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782402 Title: any export AC3 causes segfault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/transcode/+bug/1782402/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
