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[vdr] Re: Problem during recording and watching the same channel




On Mercoledì, ago 27, 2003, at 09:21 Europe/Zurich, Klaus Schmidinger wrote:

Davide Krähenbühl wrote:
On Mercoledì, ago 27, 2003, at 08:40 Europe/Zurich, Klaus Schmidinger
wrote:

Davide Krähenbühl wrote:

hi all,

this is my first post in this mailing list.

I use vdr 1.2.4 without any patch or plugin, my dvb-s card is a nexus
2.1 with linux-dvb driver 1.0. when I record something I have that
kind
of error:

Aug 27 00:14:58 mediabox vdr[1293]: transfer thread started (pid=1293)
Aug 27 00:14:58 mediabox vdr[1294]: receiver thread started on device
1
(pid=1294)
Aug 27 00:15:02 mediabox vdr[1320]: recording thread started
(pid=1320)
Aug 27 00:15:02 mediabox vdr[1293]: ERROR (transfer.c,108): Operation
not permitted
Aug 27 00:15:13 mediabox vdr[1294]: buffer usage: 80% (pid=1293)
Aug 27 00:15:14 mediabox vdr[1294]: buffer usage: 85% (pid=1293)
Aug 27 00:15:14 mediabox vdr[1294]: buffer usage: 90% (pid=1293)
Aug 27 00:15:14 mediabox vdr[1294]: buffer usage: 95% (pid=1293)
Aug 27 00:15:15 mediabox vdr[1294]: buffer usage: 100% (pid=1293)
Aug 27 00:15:15 mediabox vdr[1294]: ERROR: ring buffer overflow (89
bytes dropped)
Aug 27 00:15:22 mediabox vdr[1293]: ERROR: PES packet length overflow
in remuxer (stream corruption)

what I see and hear on my TV is very crappy but the recorded file is
good. this append only when I watch the same channel I record.
I have the same problem with old version of vdr like 1.2.1 and 1.2.2.
Are you sure you have DMA activated for your harddisk?

Klaus
yes, of course, here the hdparm:

/dev/hda:
  multcount    = 16 (on)
  IO_support   =  1 (32-bit)
  unmaskirq    =  1 (on)
  using_dma    =  1 (on)
  keepsettings =  0 (off)
  readonly     =  0 (off)
  readahead    =  8 (on)
  geometry     = 3333/255/63, sectors = 53550304, start = 0

and I forgot to say that if I stop to record the video and audio
problem continue until I switch channel. If I watch a channel and
record another one there is no problem, all works perfectly.
Then you may want to try activating the lines

/*
if (!gotBufferReserve) {
if (ringBuffer->Available() < 4 * MAXFRAMESIZE) {
usleep(100000); // allow the buffer to collect some reserve
continue;
}
else
gotBufferReserve = true;
}
*/

in VDR/transfer.c (simply by removing the comment characters).
I just try to remove the comment characters, recompile vdr, record something and watching the same channel. here the log file with the errors I have:

Aug 27 11:25:13 mediabox vdr[1133]: transfer thread started (pid=1133)
Aug 27 11:25:13 mediabox vdr[1134]: receiver thread started on device 1 (pid=1134)
Aug 27 11:25:13 mediabox vdr[871]: timer 2 (1 1125-1425 '@TITLE EPISODE') start
Aug 27 11:25:13 mediabox vdr[871]: Title: 'Appuntamento al cinema' Subtitle: ''
Aug 27 11:25:13 mediabox vdr[871]: record /video/@Appuntamento_al_cinema__/2003-08-27.11:25.50.50.rec
Aug 27 11:25:13 mediabox vdr[871]: creating directory /video/@Appuntamento_al_cinema__
Aug 27 11:25:13 mediabox vdr[871]: creating directory /video/@Appuntamento_al_cinema__/2003-08-27.11:25.50.50.rec
Aug 27 11:25:13 mediabox vdr[871]: recording to '/video/@Appuntamento_al_cinema__/2003-08-27.11:25.50.50.rec/001.vdr'
Aug 27 11:25:13 mediabox vdr[1136]: recording thread started (pid=1136)
Aug 27 11:25:15 mediabox vdr[1134]: buffer usage: 80% (pid=1133)
Aug 27 11:25:15 mediabox vdr[1134]: buffer usage: 85% (pid=1133)
Aug 27 11:25:15 mediabox vdr[1134]: buffer usage: 90% (pid=1133)
Aug 27 11:25:15 mediabox vdr[1134]: buffer usage: 95% (pid=1133)
Aug 27 11:25:15 mediabox vdr[1134]: buffer usage: 100% (pid=1133)
Aug 27 11:25:15 mediabox vdr[1134]: ERROR: ring buffer overflow (89 bytes dropped)
Aug 27 11:25:15 mediabox vdr[1134]: ERROR: ring buffer overflow (188 bytes dropped)
Aug 27 11:25:24 mediabox last message repeated 17794 times

if I use the menu (moving around the menu during the recording) the video and audio problem become more visible.



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