Fixes valgrind --undef-value-errors=yes warnings caused by valid
overreads in the fate vsynth jpegls, cover-art-ape and cover-art-wv
tests.
---
libavcodec/mjpegdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 104a63d..0b22bca 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1387,6 +1387,8 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
}
*unescaped_buf_ptr = s->buffer;
*unescaped_buf_size = dst - s->buffer;
+ memset(s->buffer + *unescaped_buf_size, 0,
+ FF_INPUT_BUFFER_PADDING_SIZE);
av_log(s->avctx, AV_LOG_DEBUG, "escaping removed %td bytes\n",
(buf_end - *buf_ptr) - (dst - s->buffer));
@@ -1428,6 +1430,8 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
*unescaped_buf_ptr = dst;
*unescaped_buf_size = (bit_count + 7) >> 3;
+ memset(s->buffer + *unescaped_buf_size, 0,
+ FF_INPUT_BUFFER_PADDING_SIZE);
} else {
*unescaped_buf_ptr = *buf_ptr;
*unescaped_buf_size = buf_end - *buf_ptr;
--
1.7.12.4
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