Re: [FFmpeg-devel] [PATCH v2] ogg/vorbis: implement header packet skip in chained ogg bitstreams.

From: Yalda <marth64@proxyid.net>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Marvin Scholz <epirat07@gmail.com>, Lynne <dev@lynne.ee>,
	Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: Re: [FFmpeg-devel] [PATCH v2] ogg/vorbis: implement header packet skip in chained ogg bitstreams.
Date: Tue, 12 Aug 2025 11:33:11 -0500
Message-ID: <CAAhd_PWwFeffV9AshO5uZRqenvmQdqj3mvW_-mbNnBNdHY+geA@mail.gmail.com> (raw)
In-Reply-To: <CABWZ6OQu7-Zq49Ad61BKjhekKfWGM=1p6NHLjod+943gysq7Gw@mail.gmail.com>

Romain Beauxis:

Thank you, Romain, for the clarity.

I have some follow up questions just to solidify my understanding.
I think this is a good match since this sounds like a segment joining
problem which is ironically what I have been doing in principle
with my other contributions.

1) Can core stream parameters (channels, sample rate) change mid-flight?

2) Why are the header packets emitted to begin with?
Are they necessary for the audible bitstream or preamble metadata?
Alternatively, a link to external reading is fine by me!

3) Is it possible that doing the stream copy is a front-line goal in actuality?
In other words, by solving 1/2/3, we are actually wanting to solve 4?
(If this thought makes sense)

4) Is there a sample command to spawn such a source stream, or is setting
up Icecast with defaults enough and play segments to simulate the conditions?
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