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| author | Paul B Mahol <onemda@gmail.com> | 2020-08-31 16:19:55 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-08-31 16:31:10 +0200 |
| commit | 445e5fb67ab1bd5b59e89efe7c14cda692a30e15 (patch) | |
| tree | e36596877a4f78416f1d54e86eb98a29bb960209 | |
| parent | eb9fa00bcc7138516009c6e060e07b510806fe61 (diff) | |
| download | ffmpeg-445e5fb67ab1bd5b59e89efe7c14cda692a30e15.tar.gz | |
avcodec/magicyuv: invert symbols when building vlc
Instead at every decoded symbol.
| -rw-r--r-- | libavcodec/magicyuv.c | 10 |
1 files changed, 5 insertions, 5 deletions
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; } |