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avutil: change default buffer size alignment for sample buffer functions

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Aligning nb_samples will give both correct plane pointer alignment and enough
padding for SIMD-optimized functions.
This commit is contained in:
Justin Ruggles 2012-04-10 10:53:55 -04:00
parent 0ca4414d0f
commit 83b26046fc
1 changed files with 4 additions and 2 deletions
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6
libavutil/samplefmt.c
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@ -124,8 +124,10 @@ int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
return AVERROR(EINVAL); return AVERROR(EINVAL);
/* auto-select alignment if not specified */ /* auto-select alignment if not specified */
if (!align) if (!align) {
align = 32; align = 1;
nb_samples = FFALIGN(nb_samples, 32);
}
/* check for integer overflow */ /* check for integer overflow */
if (nb_channels > INT_MAX / align || if (nb_channels > INT_MAX / align ||