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Code Issues Releases Activity

avfilter/avfilter: make filter_activate_default request frames on behalf of sinks

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Sinks without an activate callback have no means to request frames in their
input, therefore the default activate callback should do it for them.

Fixes ticket #11624.
Fixes ticket #10988.
Fixes ticket #10990.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
2025-06-22 20:48:09 +02:00
parent 4440e499ba
commit 44546751db
1 changed files with 9 additions and 0 deletions
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9
libavfilter/avfilter.c
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@ -1288,6 +1288,10 @@ static int filter_activate_default(AVFilterContext *filter)
if (li->frame_wanted_out)
return request_frame_to_filter(filter->outputs[i]);
}
if (!filter->nb_outputs) {
ff_inlink_request_frame(filter->inputs[0]);
return 0;
}
return FFERROR_NOT_READY;
}
@ -1427,6 +1431,11 @@ static int filter_activate_default(AVFilterContext *filter)
Rationale: even if all inputs are blocked an activate callback should
request a frame on some if its inputs if a frame is requested on any of
its output.
- Request a frame on the input for sinks.
Rationale: sinks using the old api have no way to request a frame on their
input, so we need to do it for them.
*/
int ff_filter_activate(AVFilterContext *filter)