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avfilter/vf_median: clip radius instead of erroring out

This commit is contained in:
Paul B Mahol 2019-11-21 11:21:31 +01:00
parent 7ead0daa24
commit 8e2a832a55
1 changed files with 9 additions and 18 deletions
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27
libavfilter/vf_median.c
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@ -110,33 +110,30 @@ static int query_formats(AVFilterContext *ctx)
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
}
static int check_params(MedianContext *s, AVFilterLink *inlink)
static void check_params(MedianContext *s, AVFilterLink *inlink)
{
for (int i = 0; i < s->nb_planes; i++) {
if (!(s->planes & (1 << i)))
continue;
if (s->planewidth[i] < s->radius * 2 + 1) {
av_log(inlink->dst, AV_LOG_ERROR, "The %d plane width %d must be not less than %d\n", i, s->planewidth[i], s->radius * 2 + 1);
return AVERROR(EINVAL);
av_log(inlink->dst, AV_LOG_WARNING, "The %d plane width %d must be not less than %d, clipping radius.\n", i, s->planewidth[i], s->radius * 2 + 1);
s->radius = (s->planewidth[i] - 1) / 2;
}
if (s->planeheight[i] < s->radiusV * 2 + 1) {
av_log(inlink->dst, AV_LOG_ERROR, "The %d plane height %d must be not less than %d\n", i, s->planeheight[i], s->radiusV * 2 + 1);
return AVERROR(EINVAL);
av_log(inlink->dst, AV_LOG_WARNING, "The %d plane height %d must be not less than %d, clipping radiusV.\n", i, s->planeheight[i], s->radiusV * 2 + 1);
s->radiusV = (s->planeheight[i] - 1) / 2;
}
}
s->t = 2 * s->radius * s->radiusV + 2 * s->radius;
return 0;
}
static int config_input(AVFilterLink *inlink)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
MedianContext *s = inlink->dst->priv;
int ret;
s->depth = desc->comp[0].depth;
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
@ -147,9 +144,7 @@ static int config_input(AVFilterLink *inlink)
s->radiusV = !s->radiusV ? s->radius : s->radiusV;
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
ret = check_params(s, inlink);
if (ret < 0)
return ret;
check_params(s, inlink);
s->nb_threads = FFMAX(1, FFMIN(s->planeheight[1] / (s->radiusV + 1), ff_filter_get_nb_threads(inlink->dst)));
s->bins = 1 << ((s->depth + 1) / 2);
@ -258,19 +253,15 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
char *res, int res_len, int flags)
{
MedianContext *s = ctx->priv;
int radius = s->radius, radiusV = s->radiusV, planes = s->planes;
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
ret = check_params(s, ctx->inputs[0]);
if (ret != 0) {
s->radius = radius;
s->radiusV = radiusV;
s->planes = planes;
}
if (!s->radiusV)
s->radiusV = s->radius;
check_params(s, ctx->inputs[0]);
return 0;
}