[FFmpeg-cvslog] 4xm: clear FF_INPUT_BUFFER_PADDING_SIZE bytes in temporary buffers

[Laurent Aimar]

ffmpeg | branch: release/0.8 | Laurent Aimar <fenrir at videolan.org> | Sun Oct  2 00:48:11 2011 +0000| [39fd8d0083f416812bce028126ece47b418a203b] | committer: Reinhard Tartler

4xm: clear FF_INPUT_BUFFER_PADDING_SIZE bytes in temporary buffers

Signed-off-by: Janne Grunau <janne-libav at jannau.net>
(cherry picked from commit 8d518a9c4fe92e2497565f1765da7f913be8b1e7)

Signed-off-by: Anton Khirnov <anton at khirnov.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=39fd8d0083f416812bce028126ece47b418a203b
---

 libavcodec/4xm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index b0b0163..e6ec6a6 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -399,6 +399,7 @@ static int decode_p_frame(FourXContext *f, const uint8_t *buf, int length){
     if (!f->bitstream_buffer)
         return AVERROR(ENOMEM);
     f->dsp.bswap_buf(f->bitstream_buffer, (const uint32_t*)(buf + extra), bitstream_size/4);
+    memset((uint8_t*)f->bitstream_buffer + bitstream_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&f->gb, f->bitstream_buffer, 8*bitstream_size);
 
     f->wordstream= (const uint16_t*)(buf + extra + bitstream_size);
@@ -688,6 +689,7 @@ static int decode_i_frame(FourXContext *f, const uint8_t *buf, int length){
     if (!f->bitstream_buffer)
         return AVERROR(ENOMEM);
     f->dsp.bswap_buf(f->bitstream_buffer, (const uint32_t*)prestream, prestream_size/4);
+    memset((uint8_t*)f->bitstream_buffer + prestream_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&f->pre_gb, f->bitstream_buffer, 8*prestream_size);
 
     f->last_dc= 0*128*8*8;