From 025db5afaf28228aa14f9621b09bd424a2c1adfb Mon Sep 17 00:00:00 2001
From: Marton Balint <cus@passwd.hu>
Date: Mon, 5 Sep 2016 21:51:21 +0200
Subject: [PATCH] avfilter/af_amerge: allow merging 1 input only
Useful when the amerge filter parameters are generated from a script based on
the number of input streams, by allowing 1 input it does not have to be handled
specially.
The split filter also allows 1 output, so it is more consistent to allow
merging 1 input as well.
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Marton Balint <cus@passwd.hu>
---
libavfilter/af_amerge.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/af_amerge.c b/libavfilter/af_amerge.c
index 2b4edb09ff7..4a8c6d5bd0b 100644
--- a/libavfilter/af_amerge.c
+++ b/libavfilter/af_amerge.c
@@ -52,7 +52,7 @@ typedef struct {
static const AVOption amerge_options[] = {
{ "inputs", "specify the number of inputs", OFFSET(nb_inputs),
- AV_OPT_TYPE_INT, { .i64 = 2 }, 2, SWR_CH_MAX, FLAGS },
+ AV_OPT_TYPE_INT, { .i64 = 2 }, 1, SWR_CH_MAX, FLAGS },
{ NULL }
};
--
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