[SCM] libav/experimental: The SSSE3 version of dct_quantize in mpegvideo_mmx_template.c needs inv_zigzag_direct16 16-byte aligned, so mark it appropriately. Fixes encoder crashes e.g. with MPlayer's -vf lavc.

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 16:58:22 UTC 2013


The following commit has been merged in the experimental branch:
commit e62a55b92e1524f12cbf78033383d5a4de90257a
Author: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
Date:   Fri Jan 22 23:40:18 2010 +0000

    The SSSE3 version of dct_quantize in mpegvideo_mmx_template.c needs
    inv_zigzag_direct16 16-byte aligned, so mark it appropriately.
    Fixes encoder crashes e.g. with MPlayer's -vf lavc.
    
    Originally committed as revision 21389 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 7a979a9..2251a69 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -87,7 +87,7 @@ const uint8_t ff_zigzag248_direct[64] = {
 };
 
 /* not permutated inverse zigzag_direct + 1 for MMX quantizer */
-DECLARE_ALIGNED_8(uint16_t, inv_zigzag_direct16)[64];
+DECLARE_ALIGNED_16(uint16_t, inv_zigzag_direct16)[64];
 
 const uint8_t ff_alternate_horizontal_scan[64] = {
     0,  1,   2,  3,  8,  9, 16, 17,

-- 
Libav/FFmpeg packaging



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