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vf_drawbox: use the name 's' for the pointer to the private context

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This is shorter and consistent across filters.
This commit is contained in:
Anton Khirnov 2013-03-18 20:44:36 +01:00
parent ba09675f44
commit 20e2794eea
1 changed files with 24 additions and 24 deletions
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48
libavfilter/vf_drawbox.c
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@ -46,16 +46,16 @@ typedef struct {
static av_cold int init(AVFilterContext *ctx)
{
DrawBoxContext *drawbox= ctx->priv;
DrawBoxContext *s = ctx->priv;
uint8_t rgba_color[4];
if (av_parse_color(rgba_color, drawbox->color_str, -1, ctx) < 0)
if (av_parse_color(rgba_color, s->color_str, -1, ctx) < 0)
return AVERROR(EINVAL);
drawbox->yuv_color[Y] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
drawbox->yuv_color[U] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
drawbox->yuv_color[V] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
drawbox->yuv_color[A] = rgba_color[3];
s->yuv_color[Y] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
s->yuv_color[U] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
s->yuv_color[V] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
s->yuv_color[A] = rgba_color[3];
return 0;
}
@ -76,43 +76,43 @@ static int query_formats(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink)
{
DrawBoxContext *drawbox = inlink->dst->priv;
DrawBoxContext *s = inlink->dst->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
drawbox->hsub = desc->log2_chroma_w;
drawbox->vsub = desc->log2_chroma_h;
s->hsub = desc->log2_chroma_w;
s->vsub = desc->log2_chroma_h;
if (drawbox->w == 0) drawbox->w = inlink->w;
if (drawbox->h == 0) drawbox->h = inlink->h;
if (s->w == 0) s->w = inlink->w;
if (s->h == 0) s->h = inlink->h;
av_log(inlink->dst, AV_LOG_VERBOSE, "x:%d y:%d w:%d h:%d color:0x%02X%02X%02X%02X\n",
drawbox->w, drawbox->y, drawbox->w, drawbox->h,
drawbox->yuv_color[Y], drawbox->yuv_color[U], drawbox->yuv_color[V], drawbox->yuv_color[A]);
s->w, s->y, s->w, s->h,
s->yuv_color[Y], s->yuv_color[U], s->yuv_color[V], s->yuv_color[A]);
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
DrawBoxContext *drawbox = inlink->dst->priv;
int plane, x, y, xb = drawbox->x, yb = drawbox->y;
DrawBoxContext *s = inlink->dst->priv;
int plane, x, y, xb = s->x, yb = s->y;
unsigned char *row[4];
for (y = FFMAX(yb, 0); y < frame->height && y < (yb + drawbox->h); y++) {
for (y = FFMAX(yb, 0); y < frame->height && y < (yb + s->h); y++) {
row[0] = frame->data[0] + y * frame->linesize[0];
for (plane = 1; plane < 3; plane++)
row[plane] = frame->data[plane] +
frame->linesize[plane] * (y >> drawbox->vsub);
frame->linesize[plane] * (y >> s->vsub);
for (x = FFMAX(xb, 0); x < (xb + drawbox->w) && x < frame->width; x++) {
double alpha = (double)drawbox->yuv_color[A] / 255;
for (x = FFMAX(xb, 0); x < (xb + s->w) && x < frame->width; x++) {
double alpha = (double)s->yuv_color[A] / 255;
if ((y - yb < 3) || (yb + drawbox->h - y < 4) ||
(x - xb < 3) || (xb + drawbox->w - x < 4)) {
row[0][x ] = (1 - alpha) * row[0][x ] + alpha * drawbox->yuv_color[Y];
row[1][x >> drawbox->hsub] = (1 - alpha) * row[1][x >> drawbox->hsub] + alpha * drawbox->yuv_color[U];
row[2][x >> drawbox->hsub] = (1 - alpha) * row[2][x >> drawbox->hsub] + alpha * drawbox->yuv_color[V];
if ((y - yb < 3) || (yb + s->h - y < 4) ||
(x - xb < 3) || (xb + s->w - x < 4)) {
row[0][x ] = (1 - alpha) * row[0][x ] + alpha * s->yuv_color[Y];
row[1][x >> s->hsub] = (1 - alpha) * row[1][x >> s->hsub] + alpha * s->yuv_color[U];
row[2][x >> s->hsub] = (1 - alpha) * row[2][x >> s->hsub] + alpha * s->yuv_color[V];
}
}
}