Commit b852dde2 authored by Mark Nauwelaerts's avatar Mark Nauwelaerts Committed by Tim-Philipp Müller
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qtmux: add some more documentation

parent 60c8ed21
/* Quicktime muxer plugin for GStreamer
* Copyright (C) 2008-2010 Thiago Santos <>
* Copyright (C) 2008 Mark Nauwelaerts <>
* Copyright (C) 2010 Nokia Corporation. All rights reserved.
* Contact: Stefan Kost <>
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
......@@ -62,6 +64,24 @@
* The fragmented file features defined (only) in ISO Base Media are used by
* ISMV files making up (a.o.) Smooth Streaming (ismlmux).
* A few properties (<link linkend="GstQTMux--movie-timescale">movie-timescale</link>,
* <link linkend="GstQTMux--trak-timescale">trak-timescale</link>) allow adjusting
* some technical parameters, which might be useful in (rare) cases to resolve
* compatibility issues in some situations.
* Some other properties influence the result more fundamentally.
* A typical mov/mp4 file's metadata (aka moov) is located at the end of the file,
* somewhat contrary to this usually being called "the header".
* However, a <link linkend="GstQTMux--faststart">faststart</link> file will
* (with some effort) arrange this to be located near start of the file,
* which then allows it e.g. to be played while downloading.
* Alternatively, rather than having one chunk of metadata at start (or end),
* there can be some metadata at start and most of the other data can be spread
* out into fragments of <link linkend="GstQTMux--fragment-duration">fragment-duration</link>.
* If such fragmented layout is intended for streaming purposes, then
* <link linkend="GstQTMux--streamable">streamable</link> allows foregoing to add
* index metadata (at the end of file).
* <refsect2>
* <title>Example pipelines</title>
* |[
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