From b9c928a486fda3c0d79b153591ac86beb1c53708 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Mon, 22 Nov 2021 14:39:11 +0100
Subject: avfilter: add AVFILTER_FLAG_METADATA_ONLY

This flag allows distinguishing between filters that actually modify the
data and those that only modify metadata or gather some stream
information.
---
 libavfilter/fifo.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavfilter/fifo.c')

diff --git a/libavfilter/fifo.c b/libavfilter/fifo.c
index bb7d78f09c..1c7be88ae1 100644
--- a/libavfilter/fifo.c
+++ b/libavfilter/fifo.c
@@ -132,6 +132,7 @@ const AVFilter ff_vf_fifo = {
     .init        = init,
     .uninit      = uninit,
     .priv_size   = sizeof(FifoContext),
+    .flags       = AVFILTER_FLAG_METADATA_ONLY,
     FILTER_INPUTS(avfilter_vf_fifo_inputs),
     FILTER_OUTPUTS(avfilter_vf_fifo_outputs),
 };
@@ -158,6 +159,7 @@ const AVFilter ff_af_afifo = {
     .init        = init,
     .uninit      = uninit,
     .priv_size   = sizeof(FifoContext),
+    .flags       = AVFILTER_FLAG_METADATA_ONLY,
     FILTER_INPUTS(avfilter_af_afifo_inputs),
     FILTER_OUTPUTS(avfilter_af_afifo_outputs),
 };
-- 
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