[MPlayer-dev-eng] [PATCH] TimecodeScale handling in matroska

[Evgeniy Stepanov]

Hi,

current matroska demuxer has several problems with files whose TimecodeScale 
value is different from default (1000000). With TimecodeScale of 500000:
- displayed movie duration is 2 times bigger that it should be;
- scrolling forward works as expected: x -> x+10, but scrolling backwards 
halves the current pts: x -> x / 2.

Suggested demuxer modifications:

1. If TimecodeScale element comes before Duration element, duration value will 
be calculated using wrong tc_scale. mkv-tc_scale.patch fixes this.

2. According to specs, BlockDuration is based on TimecodeScale, hence 
mkv-tc_scale2.patch. I have not noticed any effect from this change.

3. Index entries (CueTime) are not based on TimecodeScale according to specs, 
but they definitely are in the sample I have. mkv-tc_scale3.patch deals with 
this.
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