[FFmpeg-devel] [PATCH 1/2] fic: Use proper quantization matrix index

[Derek Buitenhuis]

The matrices are not zigzagged.

Fixes artefacting.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
---
 libavcodec/fic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/fic.c b/libavcodec/fic.c
index 1b2811c..8862e08 100644
--- a/libavcodec/fic.c
+++ b/libavcodec/fic.c
@@ -146,7 +146,8 @@ static int fic_decode_block(FICContext *ctx, GetBitContext *gb,
         return AVERROR_INVALIDDATA;
 
     for (i = 0; i < num_coeff; i++)
-        block[ff_zigzag_direct[i]] = get_se_golomb(gb) * ctx->qmat[i];
+        block[ff_zigzag_direct[i]] = get_se_golomb(gb) *
+                                     ctx->qmat[ff_zigzag_direct[i]];
 
     fic_idct_put(dst, stride, block);
 
-- 
1.9.2