Zitat von Stefan Lucke <ste...@lucke.in-berlin.de>: > On Wednesday 18 February 2009, Maik Opitz wrote: >> Hi, >> >> I use softdevice in my VDR with DirectFB. >> Since some time I have the following problem when I replay an >> recording. When I fast forward the recording, it runs forward >> extremely fast for the first minute (of recording time) or so. Then it >> goes to normal ff-speed. The same if I rewind. Also jumping forward or >> backward by 1 minute (green and yellow button) is not a minute. >> Forward it jumps more than 1 minute. Backwards it is less then 1 minute. >> >> I found out that this change came on 15. April 2008. After some more >> investigating I found, it hat to do with the change from >> av_read_packet to av_read_frame. >> >> The following patch changes back from av_read_frame to av_read_packet >> and so fixes the problem. >> Could someone confirm this? > > Yes, we had a discussion about this in september last year. > > 1. http://lists.berlios.de/pipermail/softdevice-devel/2008q3/003125.html > 2. http://lists.berlios.de/pipermail/softdevice-devel/2008q3/003134.html > > On my main viewing system, I switched via that uncommited patch > back to av_read_packet(). > >> And why did we change from av_read_packet to av_read_frame? > > Hm, there were other problems, starting here: > http://www.linuxtv.org/pipermail/vdr/2007-March/012473.html > > and original fix of Martin: > http://www.linuxtv.org/pipermail/vdr/2007-March/012476.html > > av_read_frame() has a bug in PTS handling of which Martin tried to > convince ffmpeg developers, but he failed. Have a look at: > http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-March/025553.html > >> > > > -- > Stefan Lucke > _______________________________________________ > Softdevice-devel mailing list > Softdevice-devel@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/softdevice-devel >
OK, as I understand, the av_read_frame is more important for older recordings. And your patch builds a switch into softdevice's menu. So shouldnt it be commited? With standard setting to av_read_packet. So, for most people it will work. And the ones with older recordings which has problems can switch to av_read_frame. Or maybe there should be a new discussion with the ffmpeg develeopers if the bug is realy on ffmpeg's side? But I can not start this. Because my lack of the technical background. _______________________________________________ Softdevice-devel mailing list Softdevice-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/softdevice-devel
