diff options
| author | Peter Ross <pross@xvid.org> | 2019-06-21 07:52:31 +1000 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-30 10:06:38 +0100 |
| commit | fd172185580c1ccdcfb90bbfdb59fa806fad3117 (patch) | |
| tree | 97743b09c37d6cecc1f231e31800fcbe1eb80d15 /libavcodec/x86 | |
| parent | d3dee676b8a8ab6752c599e25c9b5461f06a3959 (diff) | |
| download | ffmpeg-fd172185580c1ccdcfb90bbfdb59fa806fad3117.tar.gz | |
vp4: prevent unaligned memory access in loop filter
VP4 applies a loop filter during motion compensation, causing the block offset
will often by unaligned. This produces a bus error on some platforms, namely
ARMv7 NEON.
This patch adds a unaligned version of the loop filter function pointer
to VP3DSPContext.
Reported-by: Mike Melanson <mike@multimedia.cx>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/x86')
| -rw-r--r-- | libavcodec/x86/vp3dsp_init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/x86/vp3dsp_init.c b/libavcodec/x86/vp3dsp_init.c index 1ba9576431..ba47e1c6cd 100644 --- a/libavcodec/x86/vp3dsp_init.c +++ b/libavcodec/x86/vp3dsp_init.c @@ -59,8 +59,8 @@ av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags) c->idct_dc_add = ff_vp3_idct_dc_add_mmxext; if (!(flags & AV_CODEC_FLAG_BITEXACT)) { - c->v_loop_filter = ff_vp3_v_loop_filter_mmxext; - c->h_loop_filter = ff_vp3_h_loop_filter_mmxext; + c->v_loop_filter = c->v_loop_filter_unaligned = ff_vp3_v_loop_filter_mmxext; + c->h_loop_filter = c->v_loop_filter_unaligned = ff_vp3_h_loop_filter_mmxext; } } |