Re: [FFmpeg-user] V4L2 recording results in invalid data buffer still owned errors.
Louis Rossmann l.a.rossmann at gmail.com writes: So that messed up configure line is not Gentoo's fault, but all mine. :( Then please reconfigure with ./configure --enable-gpl and add the external libraries you need, do NOT add any --disable-* flags and do NOT add any --extra-cflags / --extra-ldflags except those needed for library detection. Your current executable is intentionally slow. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user I've done everything I can with my executable, however, the problem persists. If I run a recording, it works. if I stop the recording, there is little I can do short of reboot the system to record a second video using the V4L2 device. I've tried on an Ubuntu desktop and a Gentoo laptop. Do you have any suggestions? Kernel 3.14 was a quick fix but sadly that did not last long. :( I decided to try on a different computer with a fresh install and the problem persists. I can only record once before having to reboot. I have two of the same device. What is interesting is, even after I have run out of recording tries with one device, I can try again with the next and it works - but of course, only for one time. The only other software I can find that allows me to simultaneously capture raw video from an HDMI source is $1000 on Windows 7. If someone can fix V4L/ffmpeg so it works properly with these devices, I'd be willing to match the $1k in donations. I absolutely love how no frills this is - no crap, no tons of menus, no junk I don't need, just type a line tell it how to encode and it gives me files I can easily edit. I love it... I just hate rebooting my machine for each take. I have an SSD, but still, cmon! :) ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] V4L2 recording results in invalid data buffer still owned errors.
On Sat, Sep 6, 2014 at 9:36 AM, Carl Eugen Hoyos ceho...@ag.or.at wrote: Louis Rossmann l.a.rossmann at gmail.com writes: So that messed up configure line is not Gentoo's fault, but all mine. :( Then please reconfigure with ./configure --enable-gpl and add the external libraries you need, do NOT add any --disable-* flags and do NOT add any --extra-cflags / --extra-ldflags except those needed for library detection. Your current executable is intentionally slow. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user I've done everything I can with my executable, however, the problem persists. If I run a recording, it works. if I stop the recording, there is little I can do short of reboot the system to record a second video using the V4L2 device. I've tried on an Ubuntu desktop and a Gentoo laptop. Do you have any suggestions? Kernel 3.14 was a quick fix but sadly that did not last long. :( ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] V4L2 recording results in invalid data buffer still owned errors.
On Sat, Sep 6, 2014 at 7:22 AM, Carl Eugen Hoyos ceho...@ag.or.at wrote: Louis Rossmann l.a.rossmann at gmail.com writes: * built on Sep 4 2014 22:48:40 with gcc 4.8.3 (Gentoo I know this doesn't help you with your problem but this configure line looks (or if you like feels) *completely* broken... *[rawvideo at 0xfb5040] Warning: not compiled with thread support, using thread emulation* ... and unfortunately my feelings are right! Again, this will not help you but is there nobody who uses Gentoo and wants to fix this? My todo list is unfortunately long enough (and I don't use Gentoo). To make sure I am not misunderstood: This isn't about removing one bad option from the configure line but to fix the system that creates this absurd mess! Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user Hi, Thank you for your reply. Firstly, I fixed my problem. I would like to share how - I dumped 3.16.1 kernel and compiled 3.14.14. This problem is 100% solved, and all runs very stable. The V4L2 drivers in 3.16.1 are terrible for USB devices. They worked for my integrated laptop webcam, but did not work for this. Also CPU usage went down a lot when I compiled 3.14.14 for capturing video. Secondly, I did not use Gentoo's portage system to compile ffmpeg, I did it by hand, since I could not get v4l2 support combined in with any combination of USE flags. So that messed up configure line is not Gentoo's fault, but all mine. :( Hopefully this helps someone else who is driving themselves nuts with this same problem Lesson learned, use a stable kernel! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
