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avcodec/dnxhddec: Check that the frame is interlaced before using cur_field
Fixes Ticket4227
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2c660e34cf
)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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parent
38d6ff31b7
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@ -363,7 +363,7 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
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dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
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dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
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if (ctx->cur_field) {
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if (frame->interlaced_frame && ctx->cur_field) {
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dest_y += frame->linesize[0];
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dest_u += frame->linesize[1];
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dest_v += frame->linesize[2];
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