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update docs

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Original commit message from CVS:
update docs
This commit is contained in:
Thomas Vander Stichele 2006-09-22 09:52:21 +00:00
parent eba3881add
commit 884c87d01f
1 changed files with 23 additions and 9 deletions
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30
gst/videorate/gstvideorate.c
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@ -19,21 +19,28 @@
/**
* SECTION:element-videorate
* @short_description: adjusts the framerate of video
* @short_description: retimestamps and drops/duplicates video frames to
* match the source pad's framerate and create a perfect stream
*
* <refsect2>
* <para>
* This element converts video from one framerate to another. This operation
* is performed by dropping and duplicating frames, no fancy algorithm is
* used to interpolate frames (yet).
* This element takes an incoming stream of timestamped video frames.
* It will produce a perfect stream that matches the source pad's framerate.
*
* The correction is performed by dropping and duplicating frames, no fancy
* algorithm is used to interpolate frames (yet).
* </para>
* <para>
* By default the element will simply negotiate the same framerate on its
* source and sink pad and will adjust timestamps/insert/drop frames in case
* the input stream is not respecting that framerate.
* source and sink pad.
* </para>
* <para>
* A conversion to another framerate can be forced by using filtered caps on
* This operation is useful to link to elements that require a perfect stream.
* Typical examples are formats that do not store timestamps for video frames,
* but only store a framerate, like Ogg and AVI.
* </para>
* <para>
* A conversion to a specific framerate can be forced by using filtered caps on
* the source pad.
* </para>
* <para>
@ -58,10 +65,17 @@
* </programlisting>
* Decode an Ogg/Theora file and adjust the framerate to 15 fps before playing.
* To create the test Ogg/Theora file refer to the documentation of theoraenc.
* </para>
* <para>
* <programlisting>
* gst-launch -v v4lsrc ! videorate ! video/x-raw-yuv,framerate=25/2 ! theoraenc ! oggmux ! filesink location=v4l.ogg
* </programlisting>
* Capture video from a V4L device, and adjust the stream to 12.5 fps before
* encoding to Ogg/Theora.
* </para>
* </refsect2>
*
* Last reviewed on 2006-03-02 (0.10.4)
* Last reviewed on 2006-09-02 (0.10.11)
*/
#ifdef HAVE_CONFIG_H