Once in a while I get an unusable video stream, and I want to ask here if anyone else has seen the same symptoms. I start streaming and get both video and sound, but the video is extremely "jerky" with mplayer, as if everyone in the picture has severe chronic spasms, including the furniture sometimes...
I have seen this happen a couple of times per month, and usually I just stop the streaming and restart (re-open /dev/video0) and then the problem goes away. But I am worried that this might happen while recording something. This has fortunately not happened yet, or perhaps unfortunately because a saved broken MPEG would really make it easier to debug this. But I did manage to catch the output from an affected mplayer process recently: AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample) Starting playback... VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1.33:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 768x576 Planar YV12 [mpeg2video @ 0xb90c60]ac-tex damaged at 7 0 [mpeg2video @ 0xb90c60]00 motion_type at 8 1 [mpeg2video @ 0xb90c60]00 motion_type at 4 2 [mpeg2video @ 0xb90c60]mb incr damaged [mpeg2video @ 0xb90c60]00 motion_type at 5 4 [mpeg2video @ 0xb90c60]slice mismatch [mpeg2video @ 0xb90c60]00 motion_type at 25 6 [mpeg2video @ 0xb90c60]ac-tex damaged at 0 7 [mpeg2video @ 0xb90c60]invalid cbp at 2 8 [mpeg2video @ 0xb90c60]00 motion_type at 2 9 and it kept going on like that. The pvrusb2 driver in this case is the one bundled with linux-2.6.26.2. I can't be sure of course that these broken video streams have anything to do with the pvrusb2 driver, but I think I have already excluded some of the more "obvious" failure modes, because I know that: + The problem has occurred on two different pvrusb2 hardware devices + This never happened when I used the old libusb userspace driver + This never happens when I stream DVB-T to mplayer via the same software Don't we all love intermittent failures? :-) -- Bjorn Danielsson <[email protected]> _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
