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Fixed rate histogram calculation

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Using small values for --buf-sz= in command line causes
floating point exception due to division by zero.

Change-Id: Ibfe2d44db922993a78ebc9a4a1087d9625de48ae
This commit is contained in:
Tero Rintaluoma 2011-07-15 14:47:44 +03:00
parent 6b6f367c3d
commit fd41cb8491
1 changed files with 5 additions and 0 deletions
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5
vpxenc.c
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@ -1312,6 +1312,11 @@ static void init_rate_histogram(struct rate_hist *hist,
* adjustment (5/4) to account for alt-refs
*/
hist->samples = cfg->rc_buf_sz * 5 / 4 * fps->num / fps->den / 1000;
// prevent division by zero
if (hist->samples == 0)
hist->samples=1;
hist->pts = calloc(hist->samples, sizeof(*hist->pts));
hist->sz = calloc(hist->samples, sizeof(*hist->sz));
for(i=0; i<RATE_BINS; i++)