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lavfi: make FFERROR_NOT_READY available to filters.

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I am not entirely sure that this return code is useful,
but having and using it makes no harm.
This commit is contained in:
Nicolas George 2017-07-17 14:33:11 +02:00
parent 873306f265
commit b77f041dff
2 changed files with 5 additions and 2 deletions
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2
libavfilter/avfilter.c
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@ -1304,8 +1304,6 @@ static int forward_status_change(AVFilterContext *filter, AVFilterLink *in)
return 0;
}
#define FFERROR_NOT_READY FFERRTAG('N','R','D','Y')
static int ff_filter_activate_default(AVFilterContext *filter)
{
unsigned i;

5
libavfilter/filters.h
View File

@ -27,6 +27,11 @@
#include "avfilter.h"
/**
* Special return code when activate() did not do anything.
*/
#define FFERROR_NOT_READY FFERRTAG('N','R','D','Y')
/**
* Mark a filter ready and schedule it for activation.
*