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vf_unsharp: store hsub/vsub in the filter context 

Also drop obfuscating CHROMA_WIDTH/HEIGHT macros.
This commit is contained in:
Stefano Sabatini 2011-08-12 09:30:17 +02:00
parent 53e8638205
commit 09603dcff8
1 changed files with 12 additions and 6 deletions
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18
libavfilter/vf_unsharp.c
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@ -44,8 +44,8 @@
#define MIN_SIZE 3
#define MAX_SIZE 13
#define CHROMA_WIDTH(link) -((-link->w) >> av_pix_fmt_descriptors[link->format].log2_chroma_w)
#define CHROMA_HEIGHT(link) -((-link->h) >> av_pix_fmt_descriptors[link->format].log2_chroma_h)
/* right-shift and round-up */
#define SHIFTUP(x,shift) (-((-(x))>>(shift)))
typedef struct FilterParam {
int msize_x; ///< matrix width
@ -61,6 +61,7 @@ typedef struct FilterParam {
typedef struct {
FilterParam luma; ///< luma parameters (width, height, amount)
FilterParam chroma; ///< chroma parameters (width, height, amount)
int hsub, vsub;
} UnsharpContext;
static void apply_unsharp( uint8_t *dst, int dst_stride,
@ -180,8 +181,11 @@ static int config_props(AVFilterLink *link)
{
UnsharpContext *unsharp = link->dst->priv;
unsharp->hsub = av_pix_fmt_descriptors[link->format].log2_chroma_w;
unsharp->vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
init_filter_param(link->dst, &unsharp->luma, "luma", link->w);
init_filter_param(link->dst, &unsharp->chroma, "chroma", CHROMA_WIDTH(link));
init_filter_param(link->dst, &unsharp->chroma, "chroma", SHIFTUP(link->w, unsharp->hsub));
return 0;
}
@ -207,10 +211,12 @@ static void end_frame(AVFilterLink *link)
UnsharpContext *unsharp = link->dst->priv;
AVFilterBufferRef *in = link->cur_buf;
AVFilterBufferRef *out = link->dst->outputs[0]->out_buf;
int cw = SHIFTUP(link->w, unsharp->hsub);
int ch = SHIFTUP(link->h, unsharp->vsub);
apply_unsharp(out->data[0], out->linesize[0], in->data[0], in->linesize[0], link->w, link->h, &unsharp->luma);
apply_unsharp(out->data[1], out->linesize[1], in->data[1], in->linesize[1], CHROMA_WIDTH(link), CHROMA_HEIGHT(link), &unsharp->chroma);
apply_unsharp(out->data[2], out->linesize[2], in->data[2], in->linesize[2], CHROMA_WIDTH(link), CHROMA_HEIGHT(link), &unsharp->chroma);
apply_unsharp(out->data[0], out->linesize[0], in->data[0], in->linesize[0], link->w, link->h, &unsharp->luma);
apply_unsharp(out->data[1], out->linesize[1], in->data[1], in->linesize[1], cw, ch, &unsharp->chroma);
apply_unsharp(out->data[2], out->linesize[2], in->data[2], in->linesize[2], cw, ch, &unsharp->chroma);
avfilter_unref_buffer(in);
avfilter_draw_slice(link->dst->outputs[0], 0, link->h, 1);