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authorbanastasov <btanastasov@yahoo.co.uk>2015-05-30 04:28:39 +0200
committerMichael Niedermayer <michaelni@gmx.at>2015-05-30 04:29:58 +0200
commitdebf4d6e67dfb29f3d71683add429c588828f8e8 (patch)
tree8634ec1a1f759d3f405a6fc8d7d7aa7640646fd1
parentaa9c6b6986eac8a44d7828a8653d4d015384b7da (diff)
downloadffmpeg-debf4d6e67dfb29f3d71683add429c588828f8e8.tar.gz
avcodec/dvbsubdec: Fix buf_size check in dvbsub_parse_display_definition_segment()
Fixes Ticket4326 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/dvbsubdec.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index 7c3dedf773..e268e2a38e 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1504,10 +1504,10 @@ static int dvbsub_parse_display_definition_segment(AVCodecContext *avctx,
avctx->height = display_def->height;
}
- if (buf_size < 13)
- return AVERROR_INVALIDDATA;
-
if (info_byte & 1<<3) { // display_window_flag
+ if (buf_size < 13)
+ return AVERROR_INVALIDDATA;
+
display_def->x = bytestream_get_be16(&buf);
display_def->width = bytestream_get_be16(&buf) - display_def->x + 1;
display_def->y = bytestream_get_be16(&buf);