hqx: Fix clipping error in idct put function

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
10 years ago · 0266988ccd
parent 783df7d5c5
commit 0266988ccd
2 changed files with 2 additions and 2 deletions
--- a/libavcodec/hqx.c
+++ b/libavcodec/hqx.c
@ -182,7 +182,7 @@ static void hqx_idct_put(uint16_t *dst, ptrdiff_t stride,

    for (i = 0; i < 8; i++) {
        for (j = 0; j < 8; j++) {
-            int v = av_clip(block[j + i * 8] + 0x800, 0, 0x1000);
+            int v = av_clip(block[j + i * 8] + 0x800, 0, 0xFFF);
            dst[j] = (v << 4) | (v >> 8);
        }
        dst += stride >> 1;
--- a/tests/ref/fate/canopus-hqx422a
+++ b/tests/ref/fate/canopus-hqx422a
@ -1,2 +1,2 @@
 #tb 0: 1/25
-0,          0,          0,        1,  8294400, 0x9b38264d
+0,          0,          0,        1,  8294400, 0x9a22bebf