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vf_overlay: 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 8d2565c28b
commit a70519aad1
1 changed files with 21 additions and 21 deletions
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42
libavfilter/vf_overlay.c
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@ -101,12 +101,12 @@ static int query_formats(AVFilterContext *ctx)
static int config_input_main(AVFilterLink *inlink)
{
OverlayContext *over = inlink->dst->priv;
OverlayContext *s = inlink->dst->priv;
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
av_image_fill_max_pixsteps(over->max_plane_step, NULL, pix_desc);
over->hsub = pix_desc->log2_chroma_w;
over->vsub = pix_desc->log2_chroma_h;
av_image_fill_max_pixsteps(s->max_plane_step, NULL, pix_desc);
s->hsub = pix_desc->log2_chroma_w;
s->vsub = pix_desc->log2_chroma_h;
return 0;
}
@ -114,7 +114,7 @@ static int config_input_main(AVFilterLink *inlink)
static int config_input_overlay(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
OverlayContext *over = inlink->dst->priv;
OverlayContext *s = inlink->dst->priv;
char *expr;
double var_values[VAR_VARS_NB], res;
int ret;
@ -130,36 +130,36 @@ static int config_input_overlay(AVFilterLink *inlink)
var_values[VAR_OVERLAY_W] = var_values[VAR_OW] = ctx->inputs[OVERLAY]->w;
var_values[VAR_OVERLAY_H] = var_values[VAR_OH] = ctx->inputs[OVERLAY]->h;
if ((ret = av_expr_parse_and_eval(&res, (expr = over->x_expr), var_names, var_values,
if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr), var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
goto fail;
over->x = res;
if ((ret = av_expr_parse_and_eval(&res, (expr = over->y_expr), var_names, var_values,
s->x = res;
if ((ret = av_expr_parse_and_eval(&res, (expr = s->y_expr), var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)))
goto fail;
over->y = res;
s->y = res;
/* x may depend on y */
if ((ret = av_expr_parse_and_eval(&res, (expr = over->x_expr), var_names, var_values,
if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr), var_names, var_values,
NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
goto fail;
over->x = res;
s->x = res;
av_log(ctx, AV_LOG_VERBOSE,
"main w:%d h:%d fmt:%s overlay x:%d y:%d w:%d h:%d fmt:%s\n",
ctx->inputs[MAIN]->w, ctx->inputs[MAIN]->h,
av_get_pix_fmt_name(ctx->inputs[MAIN]->format),
over->x, over->y,
s->x, s->y,
ctx->inputs[OVERLAY]->w, ctx->inputs[OVERLAY]->h,
av_get_pix_fmt_name(ctx->inputs[OVERLAY]->format));
if (over->x < 0 || over->y < 0 ||
over->x + var_values[VAR_OVERLAY_W] > var_values[VAR_MAIN_W] ||
over->y + var_values[VAR_OVERLAY_H] > var_values[VAR_MAIN_H]) {
if (s->x < 0 || s->y < 0 ||
s->x + var_values[VAR_OVERLAY_W] > var_values[VAR_MAIN_W] ||
s->y + var_values[VAR_OVERLAY_H] > var_values[VAR_MAIN_H]) {
av_log(ctx, AV_LOG_ERROR,
"Overlay area (%d,%d)<->(%d,%d) not within the main area (0,0)<->(%d,%d) or zero-sized\n",
over->x, over->y,
(int)(over->x + var_values[VAR_OVERLAY_W]),
(int)(over->y + var_values[VAR_OVERLAY_H]),
s->x, s->y,
(int)(s->x + var_values[VAR_OVERLAY_W]),
(int)(s->y + var_values[VAR_OVERLAY_H]),
(int)var_values[VAR_MAIN_W], (int)var_values[VAR_MAIN_H]);
return AVERROR(EINVAL);
}
@ -186,7 +186,7 @@ static void blend_frame(AVFilterContext *ctx,
AVFrame *dst, AVFrame *src,
int x, int y)
{
OverlayContext *over = ctx->priv;
OverlayContext *s = ctx->priv;
int i, j, k;
int width, height;
int overlay_end_y = y + src->height;
@ -218,8 +218,8 @@ static void blend_frame(AVFilterContext *ctx,
}
} else {
for (i = 0; i < 3; i++) {
int hsub = i ? over->hsub : 0;
int vsub = i ? over->vsub : 0;
int hsub = i ? s->hsub : 0;
int vsub = i ? s->vsub : 0;
uint8_t *dp = dst->data[i] + (x >> hsub) +
(start_y >> vsub) * dst->linesize[i];
uint8_t *sp = src->data[i];