[FFmpeg-cvslog] avcodec: increase FF_INPUT_BUFFER_PADDING_SIZE to 32

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Jun 11 21:18:14 2014 +0200| [67d29da4bd23057a1f646568442a77b844cb2d1b] | committer: Michael Niedermayer

avcodec: increase FF_INPUT_BUFFER_PADDING_SIZE to 32

Sometimes the input buffers get directly used as raw images and
SIMD optimized video/image filters can sometimes read more than 16 bytes
over the end.
a specific example is the AVX 24bpp to yuv code

This also fixes fate-vsynth3-rgb

Reviewed-by: Christophe Gisquet <christophe.gisquet at gmail.com>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=67d29da4bd23057a1f646568442a77b844cb2d1b
---

 libavcodec/avcodec.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 4e02f04..68b1f26 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -614,7 +614,7 @@ typedef struct AVCodecDescriptor {
  * Note: If the first 23 bits of the additional bytes are not 0, then damaged
  * MPEG bitstreams could cause overread and segfault.
  */
-#define FF_INPUT_BUFFER_PADDING_SIZE 16
+#define FF_INPUT_BUFFER_PADDING_SIZE 32
 
 /**
  * @ingroup lavc_encoding