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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-04-24 12:51:28 +0200 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2013-05-15 12:13:53 +0300 |
| commit | 0379fc1487d46445796903ab9cd4732cb7197bd2 (patch) | |
| tree | 0ca20713dccc9ac37cc03420dd10bf5a0be11f0a /libavcodec/vc1.c | |
| parent | 3ca3709ad450dffb2bef73b9f65bf023d589b2fe (diff) | |
| download | ffmpeg-0379fc1487d46445796903ab9cd4732cb7197bd2.tar.gz | |
vc1: Move INIT_LUT() further up to allow using it in more places
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/vc1.c')
| -rw-r--r-- | libavcodec/vc1.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 86651fecd8..f94d52a428 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -570,6 +570,25 @@ int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContex return 0; } +/* fill lookup tables for intensity compensation */ +#define INIT_LUT(lumscale, lumshift, luty, lutuv) \ + if (!lumscale) { \ + scale = -64; \ + shift = (255 - lumshift * 2) << 6; \ + if (lumshift > 31) \ + shift += 128 << 6; \ + } else { \ + scale = lumscale + 32; \ + if (lumshift > 31) \ + shift = (lumshift - 64) << 6; \ + else \ + shift = lumshift << 6; \ + } \ + 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); \ + } + int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb) { int pqindex, lowquant, status; @@ -800,25 +819,6 @@ int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb) return 0; } -/* fill lookup tables for intensity compensation */ -#define INIT_LUT(lumscale, lumshift, luty, lutuv) \ - if (!lumscale) { \ - scale = -64; \ - shift = (255 - lumshift * 2) << 6; \ - if (lumshift > 31) \ - shift += 128 << 6; \ - } else { \ - scale = lumscale + 32; \ - if (lumshift > 31) \ - shift = (lumshift - 64) << 6; \ - else \ - shift = lumshift << 6; \ - } \ - 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); \ - } - int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb) { int pqindex, lowquant; |