[FFmpeg-devel] [RFC/PATCH] matroska timestamps not always pts

Måns Rullgård mans
Wed Nov 21 00:44:46 CET 2007

"elupus" <elupus at ecce.se> writes:

> "Uoti Urpala" <uoti.urpala at pp1.inet.fi> wrote in message 
> news:1195598562.18396.9.camel at symbol.nonexistent.invalid...
>> On Sun, 2007-11-18 at 23:11 +0100, elupus wrote:
>>> Apperently the timestamps stored in matroska container can mean different
>>> things. For native tracks they normally mean pts, while for others this
>>> isn't always the case.
>>> The case i'm trying to nail here is the ms compatibility case. In this 
>>> case,
>>> timestamps should correspond to the frame numbers in avi. This patch 
>>> makes
>>> demuxer only set the correct timestamp (dts/pts) in the packet.
>> Does some spec say they "should correspond" to frame numbers? Or are you
>> only saying this because you've seen (invalid?) files generated by
>> someone which do this?
> Well, i didn't get that exact wording from Haali, what I got was that 
> "timestamps should be treated as timestamps are treated in avi." And since 
> there is no such thing as timestamps in avi, 

this must mean that matroska timestamps should be ignored.

M?ns Rullg?rd
mans at mansr.com

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