[FFmpeg-cvslog] avfilter/af_afftdn: request new frames only when needed

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sun May  1 14:13:29 2022 +0200| [fe57904a71fde486237595c47ba8fee072c4aa5c] | committer: Paul B Mahol

avfilter/af_afftdn: request new frames only when needed

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fe57904a71fde486237595c47ba8fee072c4aa5c
---

 libavfilter/af_afftdn.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavfilter/af_afftdn.c b/libavfilter/af_afftdn.c
index 1b6487a102..cdb256fa10 100644
--- a/libavfilter/af_afftdn.c
+++ b/libavfilter/af_afftdn.c
@@ -1154,6 +1154,11 @@ static int activate(AVFilterContext *ctx)
     if (ret > 0)
         return output_frame(inlink, in);
 
+    if (ff_inlink_queued_samples(inlink) >= s->sample_advance) {
+        ff_filter_set_ready(ctx, 10);
+        return 0;
+    }
+
     FF_FILTER_FORWARD_STATUS(inlink, outlink);
     FF_FILTER_FORWARD_WANTED(outlink, inlink);