On Friday 12 September 2008 22:38:02 Fabio Bordin wrote: > Hi! > Recently I have returned to use softdevice and I have remained indeed > surprised by the footsteps before that it has done. > I have noticed an annoying problem with the recordings. > If I quickly advance the timecode is not correctly adjourned and when I > press the key play I find very more ahead than what I expected. > To make an example: > I begin to see the recording and I make to go fast forward the first > minute. At the desired point the timecode points out 00:03:00 but the > images don't correspond. If I restart and I see the recording to normal > speed the point in which I had pressed the key play had to point out > once inferior, around 00:01:30.
I've been seeing the same thing since back in May with DirectFB / Matrox G450 output with softdevice (see thread "Trickspeed jumps huge distances..." back in May). This was a newly built system but I've not had this problem before with the same type of hardware. My initial suspicions were that it had to do with the virtual function cDevice::HasIBPTrickSpeed which was introduced in vdr 1.5.15. However, I've played about enabling and disabling that in softdevice but get the same outcome as you describe. I also see poor A-V synch after using fast or slow speeds: this can be corrected by jumping backwards or forwards! I think there is a limit to the A-V offset so that if the offset is greater than that value it is set to zero: I'm pretty sure this is connected with the "position" in the file and the current frames being shown being so far apart after using a fast or slow speed. If I jump forward or backwards by a minute, the actual position jumped (as shown by the counter) is something like 1:12 forwards and 50 s backwards, rather than a minute as it should be. Also, when setting a cut mark, the position jumps forward quite a few I-frames, rather than just to the next one. I'm pretty sure that all of these are connected but whether it's down to changes in vdr or in softdevice... Any clues? Cheers, Laz _______________________________________________ Softdevice-devel mailing list Softdevice-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/softdevice-devel
