[FFmpeg-devel] [PATCH] avformat/oggparseogm: sync avctx w/ codecpar
chcunningham at chromium.org
Sat Feb 16 00:56:18 EET 2019
On Mon, Feb 11, 2019 at 1:55 PM Chris Cunningham <chcunningham at chromium.org>
> On Fri, Feb 8, 2019 at 2:37 PM Michael Niedermayer <michaelni at gmx.at>
>> ogg allows chaining streams when they have differing serial numbers
>> i think ive seen actual files doing this
>> ogg_replace_stream() might assign these into existing avstreams i think
> If I'm reading this correctly, I think that should always happen at the
> boundary of a new ogg page, meaning it wouldn't rely on this multiple
> headers logic?
> I found the commit where this was introduced
> With the description:
> This fixes some old ogm files that had the 3rd vorbis header after a data
> packet in another stream. This is invalid in ogg, but this change shouldn't
> affect the behaviour of any valid file.
> So, I don't think we're going to find spec text for this. No spec for OGM
> and committer indicates its not valid Ogg. I'm guessing we want to still
> support these ogm files?
Hey friends, just checking in on this discussion. Pls advise on findings
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