[ogg-dev] How to concatenate Ogg in the browser JS?

[Vitaly Zdanevich]

Yes, I found that serials of my Oggs is all zeros, thank you, I will try to alter serial.

15.11.2018, 19:39, "Ralph Giles" <giles at thaumas.net>:
> On 2018-11-15 4:22 a.m., Vitaly Zdanevich wrote:
>
>>  Note: Stream 1 has serial number 0, which is legal but may cause problems with some tools.
>
> Note if *both* files have the same serial number, it's impossible to
> find the points where they were concatentated by bisection, and most
> tools will assume they've found all the sections and calculate an
> incorrect duration. They can still be played individually because there
> is not concatenation boundary to find in the individual case.
>
> If ogginfo shows the same serial (00000000) for both of your input
> streams, that's likely the problem. Muxers are supposed to use a random
> serial number to make conflicts unlikely. You can fix them by rewriting
> the serial number so there's no conflict. Basically, you change the
> serialno field in each ogg page header and then update the crc.
>
> If you want an example, I have a quick script for doing this in
> https://git.xiph.org/?p=rogg.git;a=blob;f=rogg_serial.c
>
> HTH,
>   -r