diff options
| author | Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk> | 2011-01-03 10:43:15 +0100 |
|---|---|---|
| committer | Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk> | 2011-01-03 17:40:51 +0100 |
| commit | 8f174304ee5158a5f407f9ba987d4371099bc4d0 (patch) | |
| tree | c55764e6913853bad24aaaee2a990ce8367f8574 | |
| parent | 1ff6806cd430694285a9d71a84cef88a55cf4098 (diff) | |
qtmux: add some more documentation
| -rw-r--r-- | gst/qtmux/gstqtmux.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/gst/qtmux/gstqtmux.c b/gst/qtmux/gstqtmux.c index 95f52a4a6..9ef8caf14 100644 --- a/gst/qtmux/gstqtmux.c +++ b/gst/qtmux/gstqtmux.c @@ -1,7 +1,9 @@ /* Quicktime muxer plugin for GStreamer * Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br> * Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net> - * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * Contact: Stefan Kost <stefan.kost@nokia.com> + * 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> * |[ |