From: wzqzero <1918583...@qq.com>
When converting a two-minute 3840 x 2160 video to a GIF file,
the viewing duration is shorter than the source duration when you use ffmpeg -i,
which is due to data overflow,
which causes positive numbers to become negative after being assigned,
causing the gif_skip_subblocks to fail.
Signed-off-by: wzqzero <1918583...@qq.com>
---
libavformat/gifdec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavformat/gifdec.c b/libavformat/gifdec.c
index d5f06adc64..b026fa34ea 100644
--- a/libavformat/gifdec.c
+++ b/libavformat/gifdec.c
@@ -99,9 +99,9 @@ static int resync(AVIOContext *pb)
return 0;
}
-static int gif_skip_subblocks(AVIOContext *pb)
+static int64_t gif_skip_subblocks(AVIOContext *pb)
{
- int sb_size, ret = 0;
+ int64_t sb_size, ret = 0;
while (0x00 != (sb_size = avio_r8(pb))) {
if ((ret = avio_skip(pb, sb_size)) < 0)
--
2.43.0.windows.1
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