Thierry Lelegard wrote: >> I'm trying to read from /dev/dvb/adapter0/dvr0. >> The problem is that the process reading sometimes is not fast enough and >> after a while I get errno >> 75 when I try to read from it. >> >> On average the speed is ok, so it should work. >> There must be a buffer behind dvr0 that goes in error onece it is full. >> >> 1) how can I make it bigger? >> 2) how can I check how full it is? > > You can set the *demux* buffer size, upstream from dvr, using ioctl > DMX_SET_BUFFER_SIZE. > The default value is 8 kB. Using 1 MB, I can do full TS capture without any > loss. > >
I've noticed that there are 2 ioctl DMX_SET_BUFFER_SIZE, one for the demux, one for the dvr. The second is not implemented. switch (cmd) { case DMX_SET_BUFFER_SIZE: // FIXME: implement ret = 0; break; Could you please help me: 1) how many ringbuffers are there? 2) I'm reading from dvr, which one do I need to set? 3) I can try to implement the above code if needed. Cheers Andrea _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb