[FFmpeg-devel] [PATCH 7/7] ffmpeg: make the ac option set the demuxer's ch_layout AVOption

From: James Almer <jamrial@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 7/7] ffmpeg: make the ac option set the demuxer's ch_layout AVOption
Date: Sun, 20 Mar 2022 17:06:34 -0300
Message-ID: <20220320200634.51420-1-jamrial@gmail.com> (raw)
In-Reply-To: <YjeEOmFwEpe+MSG4@phare.normalesup.org>

channels is deprecated on all supported raw demuxers.

Signed-off-by: James Almer <jamrial@gmail.com>
---
 fftools/ffmpeg_opt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 720a3cc46a..b3edbf9885 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1122,7 +1122,11 @@ static int open_input_file(OptionsContext *o, const char *filename)
         if (file_iformat && (priv_class = file_iformat->priv_class) &&
             av_opt_find(&priv_class, "channels", NULL, 0,
                         AV_OPT_SEARCH_FAKE_OBJ)) {
-            av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
+            AVBPrint bp;
+            av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
+            av_bprintf(&bp, "%dC", o->audio_channels[o->nb_audio_channels - 1].u.i);
+            av_dict_set(&o->g->format_opts, "ch_layout", bp.str, 0);
+            av_bprint_finalize(&bp, NULL);
         }
     }
     if (o->nb_audio_ch_layouts) {
-- 
2.35.1

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