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| author | Anton Khirnov <anton@khirnov.net> | 2013-04-27 18:01:51 +0200 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2013-05-07 07:13:55 +0200 |
| commit | 6742f0408dba780e6a4fb266625f4542f6bd78d0 (patch) | |
| tree | 817dba143f5aab91c02663fb9c22288bac570a29 | |
| parent | a590979988b135db7c7260f6db2082e19a46609b (diff) | |
| download | ffmpeg-6742f0408dba780e6a4fb266625f4542f6bd78d0.tar.gz | |
indeo3: fix off by one in MV validity check
CC:libav-stable@libav.org
(cherry picked from commit 95220be1faac628d849a004644c0d102df0aa98b)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| -rw-r--r-- | libavcodec/indeo3.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c index b3e05298df..9e90fb1c5a 100644 --- a/libavcodec/indeo3.c +++ b/libavcodec/indeo3.c @@ -235,8 +235,8 @@ static int copy_cell(Indeo3DecodeContext *ctx, Plane *plane, Cell *cell) /* -1 because there is an extra line on top for prediction */ if ((cell->ypos << 2) + mv_y < -1 || (cell->xpos << 2) + mv_x < 0 || - ((cell->ypos + cell->height) << 2) + mv_y >= plane->height || - ((cell->xpos + cell->width) << 2) + mv_x >= plane->width) { + ((cell->ypos + cell->height) << 2) + mv_y > plane->height || + ((cell->xpos + cell->width) << 2) + mv_x > plane->width) { av_log(ctx->avctx, AV_LOG_ERROR, "Motion vectors point out of the frame.\n"); return AVERROR_INVALIDDATA; @@ -606,8 +606,8 @@ static int decode_cell(Indeo3DecodeContext *ctx, AVCodecContext *avctx, /* -1 because there is an extra line on top for prediction */ if ((cell->ypos << 2) + mv_y < -1 || (cell->xpos << 2) + mv_x < 0 || - ((cell->ypos + cell->height) << 2) + mv_y >= plane->height || - ((cell->xpos + cell->width) << 2) + mv_x >= plane->width) { + ((cell->ypos + cell->height) << 2) + mv_y > plane->height || + ((cell->xpos + cell->width) << 2) + mv_x > plane->width) { av_log(ctx->avctx, AV_LOG_ERROR, "Motion vectors point out of the frame.\n"); return AVERROR_INVALIDDATA; |