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Improve AVFilterFormats doxy.

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Originally committed as revision 12672 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-04-02 22:07:21 +00:00
parent 7bfacd4e75
commit a27c8d5fa9
1 changed files with 19 additions and 9 deletions
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28
libavfilter/avfilter.h
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@ -188,22 +188,32 @@ AVFilterFormats *avfilter_all_colorspaces(void);
AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b);
/**
* Adds *ref as a new reference to f.
* Adds *ref as a new reference to formats.
* That is the pointers will point like in the ascii art below:
* ________
* | f |<--------.
* | ____ | |
* | |refs| | __|_
* | |* * | | | | |
* |formats |<--------.
* | ____ | ____|___________________
* | |refs| | | __|_
* | |* * | | | | | | AVFilterLink
* | |* *--------->|*ref|
* | |____| | |____|
* |________|
* | |____| | | |____|
* |________| |________________________
*/
void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref);
void avfilter_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
/**
* Remove *ref as a reference to the format list it currently points to,
* deallocate that list if this was the last reference, and set *ref to NULL.
*
* Before After
* ________ ________ NULL
* |formats |<--------. |formats | ^
* | ____ | ____|________________ | ____ | ____|________________
* | |refs| | | __|_ | |refs| | | __|_
* | |* * | | | | | | AVFilterLink | |* * | | | | | | AVFilterLink
* | |* *--------->|*ref| | |* | | | |*ref|
* | |____| | | |____| | |____| | | |____|
* |________| |_____________________ |________| |_____________________
*/
void avfilter_formats_unref(AVFilterFormats **ref);
@ -211,7 +221,7 @@ void avfilter_formats_unref(AVFilterFormats **ref);
*
* Before After
* ________ ________
* | f |<---------. | f |<---------.
* |formats |<---------. |formats |<---------.
* | ____ | ___|___ | ____ | ___|___
* | |refs| | | | | | |refs| | | | | NULL
* | |* *--------->|*oldref| | |* *--------->|*newref| ^