Tomas Härdin <tomas.har...@codemill.se> writes:
> Hi
>
> The attached patch adds av_calloc() to libavutil.
> See the mxfdec thread ("[PATCH] mxfdec: replace x>>av_log2(sizeof(..))
> by x/sizeof(..)"). This allows for simpler, smaller code and smaller
> binaries.
>
> /Tomas
>
> From f614808c28a58c14906c81962871d2c2dfc73afe Mon Sep 17 00:00:00 2001
> From: Laurent Aimar <fen...@videolan.org>
> Date: Sat, 24 Sep 2011 18:39:13 +0200
> Subject: [PATCH 1/2] Add av_calloc() helper.
>
> Signed-off-by: Michael Niedermayer <michae...@gmx.at>
> ---
> libavutil/mem.c | 7 +++++++
> libavutil/mem.h | 12 ++++++++++++
> 2 files changed, 19 insertions(+), 0 deletions(-)
>
> diff --git a/libavutil/mem.c b/libavutil/mem.c
> index 0fe9f54..45b024d 100644
> --- a/libavutil/mem.c
> +++ b/libavutil/mem.c
> @@ -167,6 +167,13 @@ void *av_mallocz(size_t size)
> return ptr;
> }
>
> +void *av_calloc(size_t nmemb, size_t size)
> +{
> + if (size <= 0 || nmemb >= INT_MAX / size)
> + return NULL;
> + return av_mallocz(nmemb * size);
> +}
The places where this would be used don't in general need zeroed memory.
--
Måns Rullgård
m...@mansr.com
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