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avfilter/showvolume : move clear picture part to a func 

and use it if fade == 0.
This commit is contained in:
Martin Vignali 2018-03-31 15:50:19 +02:00 committed by Paul B Mahol
parent a1b91b0cc2
commit 4152413dde
1 changed files with 16 additions and 10 deletions
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26
libavfilter/avf_showvolume.c
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@ -245,13 +245,24 @@ static void drawtext(AVFrame *pic, int x, int y, const char *txt, int o)
}
}
static void clear_picture(ShowVolumeContext *s, AVFilterLink *outlink) {
int i, j;
const uint32_t bg = (uint32_t)(s->bgopacity * 255) << 24;
for (i = 0; i < outlink->h; i++) {
uint32_t *dst = (uint32_t *)(s->out->data[0] + i * s->out->linesize[0]);
for (j = 0; j < outlink->w; j++)
AV_WN32A(dst + j, bg);
}
}
static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
ShowVolumeContext *s = ctx->priv;
const int step = s->step;
int c, i, j, k;
int c, j, k;
AVFrame *out;
if (!s->out || s->out->width != outlink->w ||
@ -262,18 +273,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
av_frame_free(&insamples);
return AVERROR(ENOMEM);
}
for (i = 0; i < outlink->h; i++) {
uint32_t *dst = (uint32_t *)(s->out->data[0] + i * s->out->linesize[0]);
const uint32_t bg = (uint32_t)(s->bgopacity * 255) << 24;
for (j = 0; j < outlink->w; j++)
AV_WN32A(dst + j, bg);
}
clear_picture(s, outlink);
}
s->out->pts = insamples->pts;
if (s->f < 1.) {
if ((s->f < 1.) && (s->f > 0.)) {
for (j = 0; j < outlink->h; j++) {
uint8_t *dst = s->out->data[0] + j * s->out->linesize[0];
const uint32_t alpha = s->bgopacity * 255;
@ -285,6 +289,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
dst[k * 4 + 3] = FFMAX(dst[k * 4 + 3] * s->f, alpha);
}
}
} else if (s->f == 0.) {
clear_picture(s, outlink);
}
if (s->orientation) { /* vertical */