libavcodec/exr: fix incorrect translation of denorm mantissa

4 years ago · 8ddcbebc3f
parent 2524e64dbe
commit 8ddcbebc3f
6 changed files with 6 additions and 6 deletions
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@ -201,7 +201,7 @@ static union av_intfloat32 exr_half2float(uint16_t hf)
            mantissa <<= 1;
            exp = HALF_FLOAT_MIN_BIASED_EXP_AS_SINGLE_FP_EXP;
            // check for leading 1 in denorm mantissa
-            while ((mantissa & (1 << 10))) {
+            while (!(mantissa & (1 << 10))) {
                // for every leading 0, decrement single precision exponent by 1
                // and shift half-float mantissa value to the left
                mantissa <<= 1;
--- a/tests/ref/fate/exr-rgba-multiscanline-half-b44
+++ b/tests/ref/fate/exr-rgba-multiscanline-half-b44
@ -3,4 +3,4 @@
 #codec_id 0: rawvideo
 #dimensions 0: 935x251
 #sar 0: 1/1
-0,          0,          0,        1,  3754960, 0x4d48a1b2
+0,          0,          0,        1,  3754960, 0x8d9af112
--- a/tests/ref/fate/exr-slice-raw
+++ b/tests/ref/fate/exr-slice-raw
@ -3,4 +3,4 @@
 #codec_id 0: rawvideo
 #dimensions 0: 587x675
 #sar 0: 1/1
-0,          0,          0,        1,  6339600, 0x4f2b496b
+0,          0,          0,        1,  6339600, 0xda3e31df
--- a/tests/ref/fate/exr-slice-rle
+++ b/tests/ref/fate/exr-slice-rle
@ -3,4 +3,4 @@
 #codec_id 0: rawvideo
 #dimensions 0: 587x675
 #sar 0: 1/1
-0,          0,          0,        1,  6339600, 0x4f2b496b
+0,          0,          0,        1,  6339600, 0xda3e31df
--- a/tests/ref/fate/exr-slice-zip1
+++ b/tests/ref/fate/exr-slice-zip1
@ -3,4 +3,4 @@
 #codec_id 0: rawvideo
 #dimensions 0: 587x675
 #sar 0: 1/1
-0,          0,          0,        1,  6339600, 0x4f2b496b
+0,          0,          0,        1,  6339600, 0xda3e31df
--- a/tests/ref/fate/exr-slice-zip16
+++ b/tests/ref/fate/exr-slice-zip16
@ -3,4 +3,4 @@
 #codec_id 0: rawvideo
 #dimensions 0: 587x675
 #sar 0: 1/1
-0,          0,          0,        1,  6339600, 0x4f2b496b
+0,          0,          0,        1,  6339600, 0xda3e31df