From 6ce2c3106d78994d2b5d23ea5d23a393f8296657 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 24 Apr 2013 15:33:11 +0200 Subject: vc1: Make INIT_LUT() self contained MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move the local variables it uses into the macro, enclosing them in a do {} while (0) scope. Signed-off-by: Martin Storsjö --- libavcodec/vc1.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'libavcodec/vc1.c') diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index b490165644..df8f30afbf 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -571,7 +571,8 @@ int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContex } /* fill lookup tables for intensity compensation */ -#define INIT_LUT(lumscale, lumshift, luty, lutuv) \ +#define INIT_LUT(lumscale, lumshift, luty, lutuv) do { \ + int scale, shift, i; \ if (!lumscale) { \ scale = -64; \ shift = (255 - lumshift * 2) << 6; \ @@ -587,7 +588,8 @@ int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContex for (i = 0; i < 256; i++) { \ luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \ lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \ - } + } \ + } while(0) int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb) { @@ -687,7 +689,6 @@ int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb) lowquant = (v->pq > 12) ? 0 : 1; v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)]; if (v->mv_mode == MV_PMODE_INTENSITY_COMP) { - int scale, shift, i; v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)]; v->lumscale = get_bits(gb, 6); v->lumshift = get_bits(gb, 6); @@ -809,7 +810,6 @@ int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb) int pqindex, lowquant; int status; int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */ - int scale, shift, i; /* for initializing LUT for intensity compensation */ int field_mode, fcm; v->p_frame_skipped = 0; -- cgit v1.2.3