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qtmux: add documentation
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/**
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* SECTION:gstqtmux
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* SECTION:element-qtmux
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* @short_description: Muxer for quicktime(.mov) files
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*
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* This element merges streams (audio and video) into QuickTime(.mov) files.
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*
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* The following background intends to explain why various similar muxers
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* are present in this plugin.
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*
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* The <ulink url="http://www.apple.com/quicktime/resources/qtfileformat.pdf">
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* QuickTime file format specification</ulink> served as basis for the MP4 file
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* format specification (mp4mux), and as such the QuickTime file structure is
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* nearly identical to the so-called ISO Base Media file format defined in
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* ISO 14496-12 (except for some media specific parts).
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* In turn, the latter ISO Base Media format was further specialized as a
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* Motion JPEG-2000 file format in ISO 15444-3 (mj2mux)
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* and in various 3GPP(2) specs (gppmux).
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* The fragmented file features defined (only) in ISO Base Media are used by
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* ISMV files making up (a.o.) Smooth Streaming (ismlmux).
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*
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* <refsect2>
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* <para>
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* This element merges streams (audio and video) into qt(.mov) files.
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* </para>
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* <title>Example pipelines</title>
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* <para>
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* <programlisting>
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* |[
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* gst-launch v4l2src num-buffers=500 ! video/x-raw-yuv,width=320,height=240 ! ffmpegcolorspace ! qtmux ! filesink location=video.mov
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* </programlisting>
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* ]|
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* Records a video stream captured from a v4l2 device and muxes it into a qt file.
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* </para>
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* </refsect2>
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*
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* Last reviewed on 2008-08-27
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* Last reviewed on 2010-12-03
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*/
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/*
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