From: Hendrik Leppkes <[email protected]> The index of the motion vector has to be checked before being multiplied by 2 for the array index.
Signed-off-by: Michael Niedermayer <[email protected]> --- libavcodec/indeo3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c index ed3535a..8083940 100644 --- a/libavcodec/indeo3.c +++ b/libavcodec/indeo3.c @@ -773,12 +773,12 @@ static int parse_bintree(Indeo3DecodeContext *ctx, AVCodecContext *avctx, /* get motion vector index and setup the pointer to the mv set */ if (!ctx->need_resync) ctx->next_cell_data = &ctx->gb.buffer[(get_bits_count(&ctx->gb) + 7) >> 3]; - mv_idx = *(ctx->next_cell_data++) << 1; + mv_idx = *(ctx->next_cell_data++); if (mv_idx >= ctx->num_vectors) { av_log(avctx, AV_LOG_ERROR, "motion vector index out of range\n"); return AVERROR_INVALIDDATA; } - curr_cell.mv_ptr = &ctx->mc_vectors[mv_idx]; + curr_cell.mv_ptr = &ctx->mc_vectors[mv_idx << 1]; curr_cell.tree = 1; /* enter the VQ tree */ UPDATE_BITPOS(8); } else { /* VQ tree DATA code */ -- 1.7.10 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
