Frontend seeking doesn't work with large files (2.5G+)

[jbeuree@…]

When the bit rate for IVTV recorded programs is set high, the resulting files can cause remote frontends problems, especially when trying to seek. The problems typically begin once the playback is past the 2G or so mark.

The problem appears to be in the ivtvdecoder. One function, StepFrames?, is converting the frame counts to an int. This truncates both the location when trying to seek, as well as the count when trying to seek a huge amount (e.g. to get to that bookmark late in the recording).

A patch fixing this problem, essentially using "long long" instead of ints is attached.

[jbeuree@…]

[Patch] Fix truncated seeking

[Isaac Richards]

(In [6786]) Patch from jbeuree (modified to work better) to fix seeking on large files with the ivtv decoder.

Fixes #68.