From 445e5fb67ab1bd5b59e89efe7c14cda692a30e15 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Mon, 31 Aug 2020 16:19:55 +0200 Subject: avcodec/magicyuv: invert symbols when building vlc Instead at every decoded symbol. --- libavcodec/magicyuv.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'libavcodec/magicyuv.c') diff --git a/libavcodec/magicyuv.c b/libavcodec/magicyuv.c index 5d76274d54..dd947c3c2f 100644 --- a/libavcodec/magicyuv.c +++ b/libavcodec/magicyuv.c @@ -113,7 +113,7 @@ static int huff_build10(VLC *vlc, uint8_t *len) for (i = 1023; i >= 0; i--) { codes[i] = code >> (32 - he[i].len); bits[i] = he[i].len; - syms[i] = he[i].sym; + syms[i] = 1023 - he[i].sym; code += 0x80000000u >> (he[i].len - 1); } @@ -145,7 +145,7 @@ static int huff_build12(VLC *vlc, uint8_t *len) for (i = 4095; i >= 0; i--) { codes[i] = code >> (32 - he[i].len); bits[i] = he[i].len; - syms[i] = he[i].sym; + syms[i] = 4095 - he[i].sym; code += 0x80000000u >> (he[i].len - 1); } @@ -177,7 +177,7 @@ static int huff_build(VLC *vlc, uint8_t *len) for (i = 255; i >= 0; i--) { codes[i] = code >> (32 - he[i].len); bits[i] = he[i].len; - syms[i] = he[i].sym; + syms[i] = 255 - he[i].sym; code += 0x80000000u >> (he[i].len - 1); } @@ -259,7 +259,7 @@ static int magy_decode_slice10(AVCodecContext *avctx, void *tdata, if (pix < 0) return AVERROR_INVALIDDATA; - dst[x] = max - pix; + dst[x] = pix; } dst += stride; } @@ -389,7 +389,7 @@ static int magy_decode_slice(AVCodecContext *avctx, void *tdata, if (pix < 0) return AVERROR_INVALIDDATA; - dst[x] = 255 - pix; + dst[x] = pix; } dst += stride; } -- cgit v1.2.3