Signed-off-by: Nicolas George <geo...@nsup.org>
---
libavfilter/avfilter.c | 6 +++++-
libavfilter/avfilter.h | 5 +++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 1df1157f02..4638ff71ee 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -1479,8 +1479,12 @@ int ff_filter_activate(AVFilterContext *filter)
{
int ret;
+ /* Generic timeline support is not yet implemented but should be easy */
+ av_assert1(!(filter->filter->flags &
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC &&
+ filter->filter->activate));
filter->ready = 0;
- ret = ff_filter_activate_default(filter);
+ ret = filter->filter->activate ? filter->filter->activate(filter) :
+ ff_filter_activate_default(filter);
if (ret == FFERROR_NOT_READY)
ret = 0;
return ret;
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 6109e5865c..d957a14482 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -294,6 +294,11 @@ typedef struct AVFilter {
* used for providing binary data.
*/
int (*init_opaque)(AVFilterContext *ctx, void *opaque);
+
+ /**
+ * Filter activation function.
+ */
+ int (*activate)(AVFilterContext *ctx);
} AVFilter;
/**
--
2.11.0
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