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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-09-14 03:26:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-09-14 03:26:19 +0200 |
| commit | 413b32f80890bd6dd8820098c88f632842973d7e (patch) | |
| tree | 0ca2f3b8ddebf4d914abb3d629072da159421c00 /libavcodec/aacpsy.c | |
| parent | 062091f87f4cbef1cb6c2889e526d8640b795875 (diff) | |
| download | ffmpeg-streaming-413b32f80890bd6dd8820098c88f632842973d7e.zip ffmpeg-streaming-413b32f80890bd6dd8820098c88f632842973d7e.tar.gz | |
aacpsy: calc_reduction_3gpp() handle active_lines = 0
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/aacpsy.c')
| -rw-r--r-- | libavcodec/aacpsy.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c index 0d44c00..93370b8 100644 --- a/libavcodec/aacpsy.c +++ b/libavcodec/aacpsy.c @@ -526,6 +526,9 @@ static float calc_reduction_3gpp(float a, float desired_pe, float pe, { float thr_avg, reduction; + if(active_lines == 0.0) + return 0; + thr_avg = exp2f((a - pe) / (4.0f * active_lines)); reduction = exp2f((a - desired_pe) / (4.0f * active_lines)) - thr_avg; |
