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commit ec60a0b5d86a8b30efbb116231c248e2eaa14468
Author:     zhang xingxing <[email protected]>
AuthorDate: Sat Oct 10 08:33:13 2026 +0200
Commit:     michaelni <[email protected]>
CommitDate: Sun Oct 18 22:43:31 2026 +0000

    avformat/realtextdec: keep the window duration in 64 bits
    
    This is not a security issue.
    
    Fixes: GJrBZmxJqqm8
    Fixes: swarm-Integer-truncation-of-parsed-duration-and-timestamps-1a4b12
    Found-by: zhang xingxing <[email protected]>
    Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavformat/realtextdec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/realtextdec.c b/libavformat/realtextdec.c
index 31f2263341..8f77939210 100644
--- a/libavformat/realtextdec.c
+++ b/libavformat/realtextdec.c
@@ -64,7 +64,8 @@ static int realtext_read_header(AVFormatContext *s)
     AVStream *st = avformat_new_stream(s, NULL);
     AVBPrint buf;
     char c = 0;
-    int res = 0, duration = read_ts("60"); // default duration is 60 seconds
+    int res = 0;
+    int64_t duration = read_ts("60"); // default duration is 60 seconds
     FFTextReader tr;
     ff_text_init_avio(s, &tr, s->pb);
 

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