Hi, Rainer Menzner wrote: > A few days ago I have asked for some help on Audio / Video > dropouts with saa7134. > > After updating to the latest sources I have played some time > with the ts_nr_packets and tsbuf parameters of saa7134. I found > these in some note by Hartmut Hackmann, who recommended to use > ts_nr_packets=128 and tsbuf=16. > > When using exactly these values, the occurence of those glitches is > definitely reduced best, but not removed completely. When setting > up certain other values, this might cause much more and in > particular more serious glitches (larger regions, ...) > > I conclude that the DMA transfer is still an issue, and I don't know > why it works on some machines and why it doesn't on other machines. > The only points I know are: > > - It is not related to CPU load > - It does not depend on where the DVB data is written to (disk or > memory for display purpose) > > Let me know if I can do something more ... > > Keep up the great work and thanks, > -Rainer > Please see my previous reply. By the way: the parameters ts_nr_packets and tsbuf no longer have a meaning in dvb mode (this caused one of the bugs in the DMA code). Good luck Hartmut
