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mpegvideo: allocate sufficiently large scratch buffer for interlaced vid
MPV_decode_mb_internal needs 3 * 16 * linesize bytes of scratch buffer For interlaced content, linesize is multiplied by two after the allocation of the scratch buffer, and the dest_cr pointer ends past the buffer. This patch makes ff_mpv_frame_size_alloc allocate a total of (aligned line_size) * 2 * 16 * 3 bytes, which suffices even for the interlaced case. CC:libav-stable@libav.org Signed-off-by: Jindrich Makovicka <makovick@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
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@ -205,7 +205,7 @@ int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize)
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FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 2 * 24,
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fail);
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 2 * 16 * 2,
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 2 * 16 * 3,
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fail)
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s->me.temp = s->me.scratchpad;
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s->rd_scratchpad = s->me.scratchpad;
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