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lavfi: add outlink helper functions.

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These wrappers cost nothing, they make the namespace more
consistent and they will be useful if/when locking becomes
necessary.
This commit is contained in:
Nicolas George 2017-07-17 14:34:41 +02:00
parent b77f041dff
commit ed1c884b9e
1 changed files with 21 additions and 0 deletions
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21
libavfilter/filters.h
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@ -26,6 +26,7 @@
*/ */
#include "avfilter.h" #include "avfilter.h"
#include "internal.h"
/** /**
* Special return code when activate() did not do anything. * Special return code when activate() did not do anything.
@ -139,4 +140,24 @@ int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts
*/ */
void ff_inlink_request_frame(AVFilterLink *link); void ff_inlink_request_frame(AVFilterLink *link);
/**
* Test if a frame is wanted on an output link.
*/
static inline int ff_outlink_frame_wanted(AVFilterLink *link)
{
return link->frame_wanted_out;
}
/**
* Set the status field of a link from the source filter.
* The pts should reflect the timestamp of the status change,
* in link time base and relative to the frames timeline.
* In particular, for AVERROR_EOF, it should reflect the
* end time of the last frame.
*/
static inline void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
{
ff_avfilter_link_set_in_status(link, status, pts);
}
#endif /* AVFILTER_FILTERS_H */ #endif /* AVFILTER_FILTERS_H */