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lavfi/unsharp: add check on matrix x/y size values oddity

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This commit is contained in:
Stefano Sabatini 2013-02-15 14:18:02 +01:00
parent b8bb661dab
commit ef4c71e8f8
3 changed files with 21 additions and 7 deletions
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6
doc/filters.texi
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@ -4970,13 +4970,13 @@ A description of the accepted options follows.
@table @option
@item luma_msize_x, lx
@item chroma_msize_x, cx
Set the luma/chroma matrix horizontal size. It can be an integer
Set the luma/chroma matrix horizontal size. It must be an odd integer
between 3 and 63, default value is 5.
@item luma_msize_y, ly
@item chroma_msize_y, cy
Set the luma/chroma matrix vertical size. It can be an integer between
3 and 63, default value is 5.
Set the luma/chroma matrix vertical size. It must be an odd integer
between 3 and 63, default value is 5.
@item luma_amount, la
@item chroma_amount, ca

2
libavfilter/version.h
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@ -30,7 +30,7 @@
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 38
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \

20
libavfilter/vf_unsharp.c
View File

@ -195,11 +195,18 @@ static int query_formats(AVFilterContext *ctx)
return 0;
}
static void init_filter_param(AVFilterContext *ctx, FilterParam *fp, const char *effect_type, int width)
static int init_filter_param(AVFilterContext *ctx, FilterParam *fp, const char *effect_type, int width)
{
int z;
const char *effect;
if (!(fp->msize_x & fp->msize_y & 1)) {
av_log(ctx, AV_LOG_ERROR,
"Invalid even size for %s matrix size %dx%d\n",
effect_type, fp->msize_x, fp->msize_y);
return AVERROR(EINVAL);
}
effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen";
av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
@ -207,18 +214,25 @@ static void init_filter_param(AVFilterContext *ctx, FilterParam *fp, const char
for (z = 0; z < 2 * fp->steps_y; z++)
fp->sc[z] = av_malloc(sizeof(*(fp->sc[z])) * (width + 2 * fp->steps_x));
return 0;
}
static int config_props(AVFilterLink *link)
{
UnsharpContext *unsharp = link->dst->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
int ret;
unsharp->hsub = desc->log2_chroma_w;
unsharp->vsub = desc->log2_chroma_h;
init_filter_param(link->dst, &unsharp->luma, "luma", link->w);
init_filter_param(link->dst, &unsharp->chroma, "chroma", SHIFTUP(link->w, unsharp->hsub));
ret = init_filter_param(link->dst, &unsharp->luma, "luma", link->w);
if (ret < 0)
return ret;
ret = init_filter_param(link->dst, &unsharp->chroma, "chroma", SHIFTUP(link->w, unsharp->hsub));
if (ret < 0)
return ret;
return 0;
}