[mythtv-users] Super flakey FireWire capture
Ryan Allen
ryan at the-summit.net
Fri Nov 9 23:27:13 UTC 2007
Is FireWire generally known to be "rock solid"? Do I have flaky
hardware? What are others experiences recording HDTV with FireWire?
Thanks,
Ryan
* Ryan Allen <ryan at the-summit.net> wrote on [11-09-07y 12:02]:
> Hey MythTV List,
>
> Is anybody experiencing flaky FireWire capture from a digital cable
> box?
>
> These are my symptoms:
>
> 1) firewire_tester returns just "fail" until I run
> "firewire_tester -B -n 2".
> Then when I re-run firewire_tester again, I get about 3 out of 10
> fails, in random places. Also, my packets received is very
> variable:
>
> root at mythtv:/var/log/mythtv# firewire_tester -p -n 1 -r 5
> Action: Test P2P connection 5 times, node 1, channel 1
> P2P: Testing...Failed
> P2P: Testing...Failed
> P2P: Testing...Success, 25 packets received
> P2P: Testing...Success, 49 packets received
> P2P: Testing...Success, 32 packets received
> root at mythtv:/var/log/mythtv# firewire_tester -p -n 1 -r 5
> Action: Test P2P connection 5 times, node 1, channel 1
> P2P: Testing...Failed
> P2P: Testing...Success, 31 packets received
> P2P: Testing...Success, 99 packets received
> P2P: Testing...Success, 31 packets received
> P2P: Testing...Success, 35 packets received
> root at mythtv:/var/log/mythtv# firewire_tester -p -n 1 -r 5
> Action: Test P2P connection 5 times, node 1, channel 1
> P2P: Testing...Success, 42 packets received
> P2P: Testing...Success, 73 packets received
> P2P: Testing...Success, 194 packets received
> P2P: Testing...Success, 55 packets received
> P2P: Testing...Success, 58 packets received
> root at mythtv:/var/log/mythtv# firewire_tester -p -n 1 -r 10
> Action: Test P2P connection 10 times, node 1, channel 1
> P2P: Testing...Success, 35 packets received
> P2P: Testing...Success, 39 packets received
> P2P: Testing...Failed
> P2P: Testing...Failed
> P2P: Testing...Success, 50 packets received
> P2P: Testing...Failed
> P2P: Testing...Success, 32 packets received
> P2P: Testing...Success, 62 packets received
> P2P: Testing...Failed
> P2P: Testing...Success, 25 packets received
>
>
> 2) Everytime I log in, or reboot the firewire "node" changes.
> Is this normal? It seems n 1 is always the plug that is not
> populated on the STB. I usually have to change the plug from n 0
> to n 1 in order to get any packets at all. Am I just trippin'?
>
>
> 3) Even after I get good packet capture, it is intermittent
> weather I can get any video at all. Chanel 149 seems to work a
> little more then others, but it's still about a 1 out or three
> chance I will capture anything at all. However, I got Discovery
> in HD the other night on live TV, and I've been told that won't
> work. Well it did work once, but I haven't been able to
> reproduce it since.
>
>
> And the biggest one:
> 4) If there is no video captured, the front end crashes. This is
> what the frontEnd log says:
>
> 2007-11-08 23:40:01.121 TV: Changing from None to WatchingLiveTV
> 2007-11-08 23:40:01.130 Using realtime priority.
> 2007-11-08 23:40:01.231 Video timing method: RTC
> 2007-11-08 23:40:01.718 VideoOutputXv: XvMCTex: Init failed
> 2007-11-08 23:40:01.719 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Texture'
> X Error: BadMatch (invalid parameter attributes) 8
> Major opcode: 142
> Minor opcode: 14
> Resource id: 0x18c
> 2007-11-08 23:40:02.176 AFD: Opened codec 0xaa535010, id(MPEG2VIDEO) type(Video)
> 2007-11-08 23:40:02.176 AFD: Opened codec 0xb2920860, id(AC3) type(Audio)
> 2007-11-08 23:40:02.238 Opening OSS audio device '/dev/adsp'.
> 2007-11-08 23:40:02.239 NVP: Enabling Audio
> 2007-11-08 23:40:02.790 NVP: Prebuffer wait timed out 10 times.
> 2007-11-08 23:40:04.328 NVP: prebuffering pause
> 2007-11-08 23:40:17.775 Using protocol version 31
> 2007-11-08 23:40:25.583 RingBuf(/myth/tv/1031_20071108234018.mpg):
> Invalid file (fd -1) when opening '/myth/tv/1031_20071108234018.mpg'.
> 2007-11-08 23:40:25.594 Could not bind to UDP notify port: 6948
> 2007-11-08 23:40:25.594 NVP::OpenFile(): Error, file not found:
> /myth/tv/1031_20071108234018.mpg
> 2007-11-08 23:40:25.595 TV Error: StartPlayer(): NVP is not playing after 20000 msec
> 2007-11-08 23:40:32.598 MythSocket(aa523e30:24):
> readStringList: Error, timeout (quick).
> 2007-11-08 23:40:32.598 RemoteEncoder::SendReceiveStringList(): No response.
> QObject::disconnect: Unexpected null parameter
> 2007-11-08 23:40:32.601 TV Error: LiveTV not successfully started
>
>
>
> Is FireWire just simply flaky? Do I have bad hardware? Is there more
> things I can do to tune the system?
>
> Thanks! Myth is a really cool project!
>
> --
>
> +-----------------------------+
> | ryan at the-summit.net |
> | http://www.the-summit.net |
> +-----------------------------+
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--
+-----------------------------+
| ryan at the-summit.net |
| http://www.the-summit.net |
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