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mpegvideo: Don't use ff_mspel_motion() for vc1 

Using ff_mspel_motion assumes that s (a MpegEncContext
poiinter) really is a Wmv2Context.

This fixes crashes in error resilience on vc1/wmv3 videos.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Michael Niedermayer 2011-11-20 17:19:25 +01:00 committed by Martin Storsjö
parent f6687bf5f8
commit 18f2d5cb9c
1 changed files with 2 additions and 1 deletions
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3
libavcodec/mpegvideo_common.h
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@ -719,7 +719,8 @@ static av_always_inline void MPV_motion_internal(MpegEncContext *s,
0, 0, 0,
ref_picture, pix_op, qpix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
}else if(!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) && s->mspel){
} else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
s->mspel && s->codec_id == CODEC_ID_WMV2) {
ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);