> On Tue, 2005-08-30 at 00:52 +0100, Mark Weaver wrote: > > With current SVN (and revisions going back to at least 7133, possibly > > before), when seeking live TV after changing channels, I sometimes see > > data from previous channels. > > Could some one point me at the appropriate place to start debugging this? > I'm not entirely up on this, but I debugged some seeking > problems not to long ago so I'll chime in. > > My guess would be DecoderBase::SyncPositionMap(), which copies > portions of the position map from the backend to the frontend. > I believe this tries to only copy the new portions of the position > map, and there may be some problems with how position map resets > are handled. > > But it could also be a problem with the position map itself, in > which case DTVRecorder::HandleKeyframe(void) or TVRec could be > the problem. I think this less likely.
also check avformatdecoder::DoFastForward if its getting into this. my fallback code for seeking may not activate the myth native pos map stuff as perhaps its not there at the time. perhaps a livetv check to enable it in case. note the main problem may be int64_t adj_cur_dts = st->cur_dts; if(ic->start_time != (int64_t)AV_NOPTS_VALUE) { int64_t st1 = av_rescale(ic->start_time, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num); adj_cur_dts = lsb3full(adj_cur_dts, st1, st->pts_wrap_bits); } which shouldnt be in there ATM as there is no equiv code in utils.c cheers mark _______________________________________________ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev