When up-converting frame rate, ffmpeg duplicates frames including side data.
This causes duplicated characters in the output. This patch removes A53 side
data from duplicated frames.
Signed-off-by: Artem Smorodin <artem.smoro...@telestream.net>
---
fftools/ffmpeg_enc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index 2bf4782a9f..93d18034ca 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -1104,6 +1104,9 @@ static void do_video_out(OutputFile *of, OutputStream
*ost, AVFrame *frame)
else if (ret < 0)
exit_program(1);
+ //Prevent duplicate Closed Captions at frame rate up-conversion
+ av_frame_remove_side_data(in_picture, AV_FRAME_DATA_A53_CC);
+
e->next_pts++;
e->vsync_frame_number++;
}
--
2.25.1
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