On Sat, May 21, 2005 at 10:24:20PM +0100, Dave Chapman wrote: > Nico Sabbi wrote: > > nyk wrote: > > > >> > >> The file drift more out of sync over time and I don't see any dropped > >> packets in dmesg unlike my PIII laptop which loses packets and drifts... > >> > >> hth, > >> Nyk > >> > >> > > Hi, > > sorry for the long delay. > > That sample is the most broken mess I've ever seen: no video packet has > > timestamps! > > run > > > > $ mpeg2desc < C4orig.mpg | grep pts | less > > > > as you can see audio timestamps range from 46941.945 to 47010.225, while > > video timestamps are never set. > > It's no susprise that mencoder and mplayer complain. > > > > Who is transmitting that stuff? > > I'm assuming from the filename and the seeder's email address (the UK), > that this is Channel 4 on the UK's DVB-T network. > > I record from that channel occasionally, and have never had problems > with missing video timestamps. > It is indeed Channel 4. I recorded a program on my laptop (a PIII) yesterday and had no problem, but the streams produced by my desktop - the AMD64 are often broken and rarely usable - they seem to start out nearly in sync but get worse and worse... I think there must be something broken on the driver side, but I don't have the knowledge to fix it. Fortunately my main use for the box is to record radio and this works fine. It's only when you add a video stream that things start getting strange. Anyone any more ideas? Thanks Nyk PS, I'll be away next week Mon-Fri extra hardware info: nyk@natsu:~$ lspci 0000:00:00.0 Host bridge: nVidia Corporation: Unknown device 00e1 (rev a1) 0000:00:01.0 ISA bridge: nVidia Corporation: Unknown device 00e0 (rev a2) 0000:00:01.1 SMBus: nVidia Corporation: Unknown device 00e4 (rev a1) 0000:00:02.0 USB Controller: nVidia Corporation: Unknown device 00e7 (rev a1) 0000:00:02.1 USB Controller: nVidia Corporation: Unknown device 00e7 (rev a1) 0000:00:02.2 USB Controller: nVidia Corporation: Unknown device 00e8 (rev a2) 0000:00:06.0 Multimedia audio controller: nVidia Corporation: Unknown device 00ea (rev a1) 0000:00:08.0 IDE interface: nVidia Corporation: Unknown device 00e5 (rev a2) 0000:00:0a.0 IDE interface: nVidia Corporation: Unknown device 00e3 (rev a2) 0000:00:0b.0 PCI bridge: nVidia Corporation: Unknown device 00e2 (rev a2) 0000:00:0e.0 PCI bridge: nVidia Corporation: Unknown device 00ed (rev a2) 0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro] 0000:01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro] (Secondary) 0000:02:08.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) 0000:02:08.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 07) 0000:02:09.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10) 0000:02:0a.0 RAID bus controller: Silicon Image, Inc. (formerly CMD Technology Inc) PCI0649 (rev 02) 0000:02:0b.0 Ethernet controller: Marvell Technology Group Ltd. Yukon Gigabit Ethernet 10/100/1000Base-T Adapter (rev 13) recording onto a 3-drive raid5 md AMD Athlon(tm) 64 Processor 3500+ 2Gb RAM/2Gb swap nyk@natsu:~$ uname -a Linux natsu 2.6.11ac7 #1 Fri May 20 17:48:57 BST 2005 x86_64 GNU/Linux -- /__ \_|\/ /\
