Bug#706136: [armhf] times out reading from /dev/video0
Package: libav-tools Version: 6:0.8.6-1 Severity: normal I have a USB camera that works fine on an amd64 system (3.8-trunk-amd64), but it does not work on a Raspberry Pi. If I run avconv -f video4linux2 -i /dev/video0 -f flv /tmp/test.flv the file is actually never written. strace (attached) reveals that the process times out waiting for data on /dev/video0 (which is FD 4). This may well be a problem with the kernel/module. If so, please reassign. -- System Information: Debian Release: 7.0 APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.8-trunk-amd64 (SMP w/4 CPU cores) Locale: LANG=en_NZ, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages libav-tools depends on: ii dpkg 1.16.10 ii libavcodec53 6:0.8.6-1 ii libavdevice536:0.8.6-1 ii libavfilter2 6:0.8.6-1 ii libavformat536:0.8.6-1 ii libavutil51 6:0.8.6-1 ii libc62.13-38 ii libpostproc526:0.8.6-1 ii libsdl1.2debian 1.2.15-5 ii libswscale2 6:0.8.6-1 libav-tools recommends no packages. libav-tools suggests no packages. -- no debconf information -- .''`. martin f. krafft madduck@d.o Related projects: : :' : proud Debian developer http://debiansystem.info `. `'` http://people.debian.org/~madduckhttp://vcs-pkg.org `- Debian - when you have better things to do than fixing systems avconv.strace.gz Description: Binary data digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/sig-policy/999bbcc4/current)
Bug#706136: [armhf] times out reading from /dev/video0
Hi Martin, Quoting martin f krafft (2013-04-25 11:56:45) I have a USB camera that works fine on an amd64 system (3.8-trunk-amd64), but it does not work on a Raspberry Pi. If I run avconv -f video4linux2 -i /dev/video0 -f flv /tmp/test.flv the file is actually never written. strace (attached) reveals that the process times out waiting for data on /dev/video0 (which is FD 4). This may well be a problem with the kernel/module. If so, please reassign. Architecture: amd64 (x86_64) Seems you filed this bugreport on the working amd64 system, not the arm one with the issue you are reporting. That's not a problem in itself, but please do tell which exact kernel package you use. Also, do you really use Debian, not Raspbian? Subject mentions armhf but TTBOMK RPi is ARMv6 so is incompatible with Debian armhf (which requires ARMv7). I strongly urge you to mention explicitly if using a derived distribution when filing bugreports against Debian, to avoid wasting time seeking needles in wrong haystack! Regards, - Jonas P.S. Expect others than me to chime in and actually squash this bug - I just noticed those architecture-related details. -- * Jonas Smedegaard - idealist Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#706136: [armhf] times out reading from /dev/video0
also sprach Jonas Smedegaard d...@jones.dk [2013.04.25.1242 +0200]: Also, do you really use Debian, not Raspbian? Subject mentions armhf but TTBOMK RPi is ARMv6 so is incompatible with Debian armhf (which requires ARMv7). Yes, Raspbian, of course. I am sorry, I stupidly forgot the kernel data: Linux pict 3.6.11+ #393 PREEMPT Fri Mar 8 16:36:28 GMT 2013 armv6l GNU/Linux About the architecture, I used dpkg --print-architecture, which gives armhf. -- .''`. martin f. krafft madduck@d.o Related projects: : :' : proud Debian developer http://debiansystem.info `. `'` http://people.debian.org/~madduckhttp://vcs-pkg.org `- Debian - when you have better things to do than fixing systems whoever fights monsters should see to it that in the process he does not become a monster. and when you look into an abyss, the abyss also looks into you. - friedrich nietzsche digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/sig-policy/999bbcc4/current)
Bug#706136: [armhf] times out reading from /dev/video0
Quoting martin f krafft (2013-04-25 13:26:44) also sprach Jonas Smedegaard d...@jones.dk [2013.04.25.1242 +0200]: Also, do you really use Debian, not Raspbian? Subject mentions armhf but TTBOMK RPi is ARMv6 so is incompatible with Debian armhf (which requires ARMv7). Yes, Raspbian, of course. I am sorry, I stupidly forgot the kernel data: Linux pict 3.6.11+ #393 PREEMPT Fri Mar 8 16:36:28 GMT 2013 armv6l GNU/Linux About the architecture, I used dpkg --print-architecture, which gives armhf. Thanks for clarifying. Would be nice if you could test that this bug actually is reproducible with Debian. I'll leave it to others in the Multimedia team more knowledgeable on libav to decide if they wanna spent time on this nevertheless - some of us care about some (but not all) non-Debian repositories. - Jonas -- * Jonas Smedegaard - idealist Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#706136: [armhf] times out reading from /dev/video0
Hello, Quoting martin f krafft (2013-04-25 13:26:44) Yes, Raspbian, of course. I am sorry, I stupidly forgot the kernel data: Linux pict 3.6.11+ #393 PREEMPT Fri Mar 8 16:36:28 GMT 2013 armv6l GNU/Linux Most likely this issue is related to Rpi hardware, you might seek further support at debian-arm mailing list or raspberrypi forums. Regards -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
