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| author | Yaowu Xu <yaowu@google.com> | 2016-06-28 09:53:11 -0700 |
|---|---|---|
| committer | Yaowu Xu <yaowu@google.com> | 2016-06-28 09:53:11 -0700 |
| commit | d34b49d7b9d6d32d5e291e9c47687e744d893017 (patch) | |
| tree | 8e885eec2cc12f09ee739ba19a73298f7f0ae456 /vpx_dsp | |
| parent | 32ac7cabdff90ce4c91e88d220d6c419b092b973 (diff) | |
| download | libvpx-d34b49d7b9d6d32d5e291e9c47687e744d893017.tar.gz libvpx-d34b49d7b9d6d32d5e291e9c47687e744d893017.tar.bz2 libvpx-d34b49d7b9d6d32d5e291e9c47687e744d893017.zip | |
psnr.c: use int64_t for sum of differences
Since the values can be negative.
Change-Id: Idda69e9fb47bb34696aeb20170341a0191c5d85e
Diffstat (limited to 'vpx_dsp')
| -rw-r--r-- | vpx_dsp/psnr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/vpx_dsp/psnr.c b/vpx_dsp/psnr.c index 1655f116c..5bf786271 100644 --- a/vpx_dsp/psnr.c +++ b/vpx_dsp/psnr.c @@ -51,7 +51,7 @@ static void encoder_variance(const uint8_t *a, int a_stride, static void encoder_highbd_variance64(const uint8_t *a8, int a_stride, const uint8_t *b8, int b_stride, int w, int h, uint64_t *sse, - uint64_t *sum) { + int64_t *sum) { int i, j; uint16_t *a = CONVERT_TO_SHORTPTR(a8); @@ -75,7 +75,7 @@ static void encoder_highbd_8_variance(const uint8_t *a8, int a_stride, int w, int h, unsigned int *sse, int *sum) { uint64_t sse_long = 0; - uint64_t sum_long = 0; + int64_t sum_long = 0; encoder_highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long); *sse = (unsigned int)sse_long; |