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Ascii art to explain what avfilter_formats_changeref() does. 

Originally committed as revision 12176 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-02-21 22:33:40 +00:00
parent eb30e86c7d
commit b9c2fb3444
1 changed files with 13 additions and 0 deletions
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13
libavfilter/avfilter.h
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@ -197,6 +197,19 @@ void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref);
*/
void avfilter_formats_unref(AVFilterFormats **ref);
/**
*
* Before After
* ________ ________
* | f |<---------. | f |<---------.
* | ____ | ___|___ | ____ | ___|___
* | |refs| | | | | | |refs| | | | | NULL
* | |* *--------->|*oldref| | |* *--------->|*newref| ^
* | |* * | | |_______| | |* * | | |_______| ___|___
* | |____| | | |____| | | | |
* |________| |________| |*oldref|
* |_______|
*/
void avfilter_formats_changeref(AVFilterFormats **oldref,
AVFilterFormats **newref);