From c48eff209ccd4ffc72a34dbbb9dd2be2fab4ded8 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Thu, 18 May 2023 11:38:10 +0200
Subject: [PATCH] avcodec/ccaptions_dec: correct flushing output on EOF

Prevents infinite flushing same last output.
---
 libavcodec/ccaption_dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c
index 661a4951a4..0f5b955f15 100644
--- a/libavcodec/ccaption_dec.c
+++ b/libavcodec/ccaption_dec.c
@@ -900,6 +900,7 @@ static int decode(AVCodecContext *avctx, AVSubtitle *sub,
         ret = ff_ass_add_rect2(sub, ctx->buffer[bidx].str, ctx->readorder++, 0, NULL, NULL, &nb_rect_allocated);
         if (ret < 0)
             return ret;
+        av_bprint_clear(&ctx->buffer[bidx]);
         sub->pts = ctx->buffer_time[1];
         sub->end_display_time = av_rescale_q(ctx->buffer_time[1] - ctx->buffer_time[0],
                                              AV_TIME_BASE_Q, ms_tb);