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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-19 23:37:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-19 23:38:46 +0100 |
| commit | c11d3634b07b4aa71f75478aa1bcb63b0c22e030 (patch) | |
| tree | d9b6813c2ca4bd6c9b1a3b1e881137516cada402 | |
| parent | 59e5b05ef6f26064fc399f8e23aa05f962b8ae48 (diff) | |
| download | ffmpeg-c11d3634b07b4aa71f75478aa1bcb63b0c22e030.tar.gz | |
avcodec/srtdec: Fix signed integer overflow: 1811992524 * 384 cannot be represented in type 'int'
Fixes: 617/clusterfuzz-testcase-6413875723370496
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/srtdec.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/srtdec.c b/libavcodec/srtdec.c index 30930c8e74..862ab47645 100644 --- a/libavcodec/srtdec.c +++ b/libavcodec/srtdec.c @@ -38,13 +38,13 @@ static void srt_to_ass(AVCodecContext *avctx, AVBPrint *dst, /* text rectangle defined, write the text at the center of the rectangle */ const int cx = x1 + (x2 - x1)/2; const int cy = y1 + (y2 - y1)/2; - const int scaled_x = cx * ASS_DEFAULT_PLAYRESX / 720; - const int scaled_y = cy * ASS_DEFAULT_PLAYRESY / 480; + const int scaled_x = cx * (int64_t)ASS_DEFAULT_PLAYRESX / 720; + const int scaled_y = cy * (int64_t)ASS_DEFAULT_PLAYRESY / 480; av_bprintf(dst, "{\\an5}{\\pos(%d,%d)}", scaled_x, scaled_y); } else { /* only the top left corner, assume the text starts in that corner */ - const int scaled_x = x1 * ASS_DEFAULT_PLAYRESX / 720; - const int scaled_y = y1 * ASS_DEFAULT_PLAYRESY / 480; + const int scaled_x = x1 * (int64_t)ASS_DEFAULT_PLAYRESX / 720; + const int scaled_y = y1 * (int64_t)ASS_DEFAULT_PLAYRESY / 480; av_bprintf(dst, "{\\an1}{\\pos(%d,%d)}", scaled_x, scaled_y); } } |