[Approved] - Fix for TsReader problems with TS files with PCR rollover

Continuing this from the thread I started over here: http://forum.team-mediaportal.com/m...ies-when-dealing-ts-files-pcr-rollover-97975/.

TsReader has 2 bugs in it when dealing with TS files that have PCR rollover:
1. When you start playback, MediaPortal freezes, HDD light goes solid, and after a while (could be minutes), the file starts playing back.
2. While playing, if you try to skip forward or backward, the HDD light goes solid again, and then after a while, the recording restarts from the beginning.

Problem #1 is a bug in TsDuration. It calculates the duration of the TS file by looking for the max PCR in the TS file before the rollover happens, and does this by a sequential (!) backwards (!!) file search. All that is unnecessary-- the code should just use a constant value (the MAX possible PCR of all binary 1s) as the value. The patch to TsDuration{.cpp,.h} below fixes this.

Problem #2 is a bug in TsFileSeek. Here, there's a section of code specifically for scanning a TS file with PCR rollover in it, and there's an if() statement where the logic is backwards. Fixing the if() fixes the problem, but beyond that, there's a whole other algorithm in it to deal with skipping around in TS files with PCR rollover that is unnecessary. The standard binary search algorithm works just fine, and is in fact faster. The patch to TsFileSeek below fixes both of these.

This is my first patch submission for MediaPortal, so if there are some rules (written or unwritten) that I haven't followed for patch submission, please let me know, and I'd be happy to work on the patches to get them into proper shape for inclusion.

Thanks...

I'm at work and don't have access to my dev PC right now, but I'll take a look at it tonight. I manually trimmed down the patch files before submitting because there were quite a few lines of just whitespace differences; I probably messed something up. Sorry for the wasted time-- I'll be more careful before submitting next time.

AW: Fix for TsReader problems with TS files with PCR rollover

For me this results in non working seeking for live TV.

OK, take 2, being more careful this time not to introduce stupid mistakes (sorry disaster123) and not edit patches after SVN creates them.

Thanks...

AW: Fix for TsReader problems with TS files with PCR rollover

So seeking should work niw on LiveTV even when the ts buffer rollover happens?

disaster123,

From what tourettes explained to me on the other thread, PCR rollover should never occur when playing TS files recorded with MediaPortal because TsWriter modifies the PCR it writes into the TS file.

There was a silly bug in the original patch I submitted that completely broke seek in all cases. I fixed that in the patch I just submitted.

So in short, yes, this should work for you. If it doesn't, can you post the TsReader.log file?

Thanks...

AW: Fix for TsReader problems with TS files with PCR rollover

OK will try again. Could it be that the Streamingserver component needs the same patch?