diff options
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | gst/replaygain/rganalysis.c | 5 |
2 files changed, 12 insertions, 1 deletions
@@ -1,3 +1,11 @@ +2007-11-12 Sebastian Dröge <slomo@circular-chaos.org> + + Patch by: René Stadler <mail at renestadler dot de> + + * gst/replaygain/rganalysis.c: (yule_filter): + Avoid slowdown from denormals when processing near-silence input data. + Spotted by Gabriel Bouvigne. Fixes #494499. + 2007-11-12 Edward Hervey <bilboed@bilboed.com> * gst/flv/gstflvparse.c: diff --git a/gst/replaygain/rganalysis.c b/gst/replaygain/rganalysis.c index 70fa24c5..147eef85 100644 --- a/gst/replaygain/rganalysis.c +++ b/gst/replaygain/rganalysis.c @@ -246,7 +246,10 @@ static inline void yule_filter (const gfloat * input, gfloat * output, const gfloat * a, const gfloat * b) { - output[0] = input[0] * b[0] + /* 1e-10 is added below to avoid running into denormals when operating on + * near silence. */ + + output[0] = 1e-10 + input[0] * b[0] + input[-1] * b[1] - output[-1] * a[1] + input[-2] * b[2] - output[-2] * a[2] + input[-3] * b[3] - output[-3] * a[3] |