From 09603dcff8352f7096f93b2c7d1744f24312f376 Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Fri, 12 Aug 2011 09:30:17 +0200 Subject: vf_unsharp: store hsub/vsub in the filter context Also drop obfuscating CHROMA_WIDTH/HEIGHT macros. --- libavfilter/vf_unsharp.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'libavfilter/vf_unsharp.c') diff --git a/libavfilter/vf_unsharp.c b/libavfilter/vf_unsharp.c index af153ce0a5..575eddd34e 100644 --- a/libavfilter/vf_unsharp.c +++ b/libavfilter/vf_unsharp.c @@ -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); -- cgit v1.2.3