[FFmpeg-devel] [PATCH] avfilter/src_movie: support unknown channel layouts

[Paul B Mahol <onemda@gmail.com>]

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Patch attached.

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From 975a677906256f5f7a6da876a1eede21c5cb2a8e Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Mon, 31 Oct 2022 12:55:17 +0100
Subject: [PATCH] avfilter/src_movie: support unknown channel layouts

Signed-off-by: Paul B Mahol <onemda@gmail.com>
---
 libavfilter/src_movie.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/libavfilter/src_movie.c b/libavfilter/src_movie.c
index 711854c23c..2e30e54ad2 100644
--- a/libavfilter/src_movie.c
+++ b/libavfilter/src_movie.c
@@ -196,11 +196,15 @@ static int guess_channel_layout(MovieStream *st, int st_index, void *log_ctx)
     av_channel_layout_default(&chl, dec_par->ch_layout.nb_channels);
 
     if (!KNOWN(&chl)) {
-        av_log(log_ctx, AV_LOG_ERROR,
+        char *cl_name;
+
+        av_log(log_ctx, AV_LOG_WARNING,
                "Channel layout is not set in stream %d, and could not "
                "be guessed from the number of channels (%d)\n",
                st_index, dec_par->ch_layout.nb_channels);
-        return AVERROR(EINVAL);
+        cl_name = av_asprintf("%dC", dec_par->ch_layout.nb_channels);
+        av_channel_layout_from_string(&chl, cl_name);
+        free(cl_name);
     }
 
     av_channel_layout_describe(&chl, buf, sizeof(buf));
-- 
2.37.2


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