[FFmpeg-cvslog] avformat/asfdec_f: Use 64bit for packet start time

[Michael Niedermayer]

ffmpeg | branch: release/4.2 | Michael Niedermayer <michael at niedermayer.cc> | Tue Jul 19 00:32:18 2022 +0200| [ea1761e14d46c1475696332c120e062f24851dc2] | committer: Michael Niedermayer

avformat/asfdec_f: Use 64bit for packet start time

Fixes: signed integer overflow: 2147483647 + 32 cannot be represented in type 'int'
Fixes: 49014/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_fuzzer-6314973315334144

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 8ed78486fcb065b5b459f14d4b1c3242f6d21ec7)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ea1761e14d46c1475696332c120e062f24851dc2
---

 libavformat/asfdec_f.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/asfdec_f.c b/libavformat/asfdec_f.c
index c8fff6ca06..7418410d43 100644
--- a/libavformat/asfdec_f.c
+++ b/libavformat/asfdec_f.c
@@ -104,7 +104,7 @@ typedef struct ASFContext {
     int ts_is_pts;
     int packet_multi_size;
     int packet_time_delta;
-    int packet_time_start;
+    int64_t packet_time_start;
     int64_t packet_pos;
 
     int stream_index;