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lavfi/blackdetect: switch to new ff_filter_frame() API

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This commit is contained in:
Stefano Sabatini 2012-12-02 00:58:59 +01:00
parent 86a2486812
commit 83ab46a57e
1 changed files with 6 additions and 18 deletions
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24
libavfilter/vf_blackdetect.c
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@ -146,30 +146,20 @@ static int request_frame(AVFilterLink *outlink)
return ret;
}
static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
{
AVFilterContext *ctx = inlink->dst;
BlackDetectContext *blackdetect = ctx->priv;
AVFilterBufferRef *picref = inlink->cur_buf;
double picture_black_ratio = 0;
const uint8_t *p = picref->data[0];
int x, i;
const uint8_t *p = picref->data[0] + y * picref->linesize[0];
for (i = 0; i < h; i++) {
for (i = 0; i < inlink->h; i++) {
for (x = 0; x < inlink->w; x++)
blackdetect->nb_black_pixels += p[x] <= blackdetect->pixel_black_th_i;
p += picref->linesize[0];
}
return ff_draw_slice(ctx->outputs[0], y, h, slice_dir);
}
static int end_frame(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
BlackDetectContext *blackdetect = ctx->priv;
AVFilterBufferRef *picref = inlink->cur_buf;
double picture_black_ratio = 0;
picture_black_ratio = (double)blackdetect->nb_black_pixels / (inlink->w * inlink->h);
av_log(ctx, AV_LOG_DEBUG,
@ -194,7 +184,7 @@ static int end_frame(AVFilterLink *inlink)
blackdetect->last_picref_pts = picref->pts;
blackdetect->frame_count++;
blackdetect->nb_black_pixels = 0;
return ff_end_frame(inlink->dst->outputs[0]);
return ff_filter_frame(inlink->dst->outputs[0], picref);
}
static const AVFilterPad blackdetect_inputs[] = {
@ -202,10 +192,8 @@ static const AVFilterPad blackdetect_inputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
.draw_slice = draw_slice,
.get_video_buffer = ff_null_get_video_buffer,
.start_frame = ff_null_start_frame,
.end_frame = end_frame,
.filter_frame = filter_frame,
},
{ NULL }
};