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avcodec/snow: clear freed pointers

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Avoid leaving stale pointers in memory

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-11-16 23:34:40 +01:00
parent 00672d2ce5
commit 7ababb85f9
2 changed files with 4 additions and 2 deletions
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4
libavcodec/snow.c
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@@ -637,8 +637,10 @@ void ff_snow_release_buffer(AVCodecContext *avctx)
if(s->last_picture[s->max_ref_frames-1]->data[0]){
av_frame_unref(s->last_picture[s->max_ref_frames-1]);
for(i=0; i<9; i++)
if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3])
if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) {
av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture->linesize[i%3]));
s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] = NULL;
}
}
}